Mercurial > hg > xemacs-beta
annotate src/fns.c @ 5159:cb303ff63e76
merge
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Fri, 19 Mar 2010 17:02:11 -0500 |
| parents | 7be849cb8828 |
| children | 2e528066e2fc |
| rev | line source |
|---|---|
| 428 | 1 /* Random utility Lisp functions. |
| 2 Copyright (C) 1985, 86, 87, 93, 94, 95 Free Software Foundation, Inc. | |
|
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3 Copyright (C) 1995, 1996, 2000, 2001, 2002, 2003, 2010 Ben Wing. |
| 428 | 4 |
| 5 This file is part of XEmacs. | |
| 6 | |
| 7 XEmacs is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 9 Free Software Foundation; either version 2, or (at your option) any | |
| 10 later version. | |
| 11 | |
| 12 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with XEmacs; see the file COPYING. If not, write to | |
| 19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 20 Boston, MA 02111-1307, USA. */ | |
| 21 | |
| 22 /* Synched up with: Mule 2.0, FSF 19.30. */ | |
| 23 | |
| 24 /* This file has been Mule-ized. */ | |
| 25 | |
| 26 /* Note: FSF 19.30 has bool vectors. We have bit vectors. */ | |
| 27 | |
| 28 /* Hacked on for Mule by Ben Wing, December 1994, January 1995. */ | |
| 29 | |
| 30 #include <config.h> | |
| 31 | |
| 32 /* Note on some machines this defines `vector' as a typedef, | |
| 33 so make sure we don't use that name in this file. */ | |
| 34 #undef vector | |
| 35 #define vector ***** | |
| 36 | |
| 37 #include "lisp.h" | |
| 38 | |
| 442 | 39 #include "sysfile.h" |
| 771 | 40 #include "sysproc.h" /* for qxe_getpid() */ |
| 428 | 41 |
| 42 #include "buffer.h" | |
| 43 #include "bytecode.h" | |
| 44 #include "device.h" | |
| 45 #include "events.h" | |
| 46 #include "extents.h" | |
| 47 #include "frame.h" | |
| 872 | 48 #include "process.h" |
| 428 | 49 #include "systime.h" |
| 50 #include "insdel.h" | |
| 51 #include "lstream.h" | |
| 52 #include "opaque.h" | |
| 53 | |
| 54 /* NOTE: This symbol is also used in lread.c */ | |
| 55 #define FEATUREP_SYNTAX | |
| 56 | |
| 57 Lisp_Object Qstring_lessp; | |
| 58 Lisp_Object Qidentity; | |
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59 Lisp_Object Qvector, Qarray, Qbit_vector; |
| 428 | 60 |
| 563 | 61 Lisp_Object Qbase64_conversion_error; |
| 62 | |
| 771 | 63 Lisp_Object Vpath_separator; |
| 64 | |
| 428 | 65 static int internal_old_equal (Lisp_Object, Lisp_Object, int); |
| 454 | 66 Lisp_Object safe_copy_tree (Lisp_Object arg, Lisp_Object vecp, int depth); |
| 428 | 67 |
| 68 static Lisp_Object | |
| 2286 | 69 mark_bit_vector (Lisp_Object UNUSED (obj)) |
| 428 | 70 { |
| 71 return Qnil; | |
| 72 } | |
| 73 | |
| 74 static void | |
| 2286 | 75 print_bit_vector (Lisp_Object obj, Lisp_Object printcharfun, |
| 76 int UNUSED (escapeflag)) | |
| 428 | 77 { |
| 665 | 78 Elemcount i; |
| 440 | 79 Lisp_Bit_Vector *v = XBIT_VECTOR (obj); |
| 665 | 80 Elemcount len = bit_vector_length (v); |
| 81 Elemcount last = len; | |
| 428 | 82 |
| 83 if (INTP (Vprint_length)) | |
| 84 last = min (len, XINT (Vprint_length)); | |
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85 write_ascstring (printcharfun, "#*"); |
| 428 | 86 for (i = 0; i < last; i++) |
| 87 { | |
| 88 if (bit_vector_bit (v, i)) | |
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89 write_ascstring (printcharfun, "1"); |
| 428 | 90 else |
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91 write_ascstring (printcharfun, "0"); |
| 428 | 92 } |
| 93 | |
| 94 if (last != len) | |
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95 write_ascstring (printcharfun, "..."); |
| 428 | 96 } |
| 97 | |
| 98 static int | |
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99 bit_vector_equal (Lisp_Object obj1, Lisp_Object obj2, int UNUSED (depth), |
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100 int UNUSED (foldcase)) |
| 428 | 101 { |
| 440 | 102 Lisp_Bit_Vector *v1 = XBIT_VECTOR (obj1); |
| 103 Lisp_Bit_Vector *v2 = XBIT_VECTOR (obj2); | |
| 428 | 104 |
| 105 return ((bit_vector_length (v1) == bit_vector_length (v2)) && | |
| 106 !memcmp (v1->bits, v2->bits, | |
| 107 BIT_VECTOR_LONG_STORAGE (bit_vector_length (v1)) * | |
| 108 sizeof (long))); | |
| 109 } | |
| 110 | |
| 665 | 111 static Hashcode |
| 2286 | 112 bit_vector_hash (Lisp_Object obj, int UNUSED (depth)) |
| 428 | 113 { |
| 440 | 114 Lisp_Bit_Vector *v = XBIT_VECTOR (obj); |
| 428 | 115 return HASH2 (bit_vector_length (v), |
| 116 memory_hash (v->bits, | |
| 117 BIT_VECTOR_LONG_STORAGE (bit_vector_length (v)) * | |
| 118 sizeof (long))); | |
| 119 } | |
| 120 | |
| 665 | 121 static Bytecount |
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122 size_bit_vector (Lisp_Object obj) |
| 442 | 123 { |
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124 Lisp_Bit_Vector *v = XBIT_VECTOR (obj); |
| 456 | 125 return FLEXIBLE_ARRAY_STRUCT_SIZEOF (Lisp_Bit_Vector, unsigned long, bits, |
| 442 | 126 BIT_VECTOR_LONG_STORAGE (bit_vector_length (v))); |
| 127 } | |
| 128 | |
| 1204 | 129 static const struct memory_description bit_vector_description[] = { |
| 428 | 130 { XD_END } |
| 131 }; | |
| 132 | |
| 133 | |
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134 DEFINE_DUMPABLE_SIZABLE_LISP_OBJECT ("bit-vector", bit_vector, |
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135 mark_bit_vector, |
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136 print_bit_vector, 0, |
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137 bit_vector_equal, |
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138 bit_vector_hash, |
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139 bit_vector_description, |
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140 size_bit_vector, |
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141 Lisp_Bit_Vector); |
| 934 | 142 |
| 428 | 143 |
| 144 DEFUN ("identity", Fidentity, 1, 1, 0, /* | |
| 145 Return the argument unchanged. | |
| 146 */ | |
| 147 (arg)) | |
| 148 { | |
| 149 return arg; | |
| 150 } | |
| 151 | |
| 152 DEFUN ("random", Frandom, 0, 1, 0, /* | |
| 153 Return a pseudo-random number. | |
| 1983 | 154 All fixnums are equally likely. On most systems, this is 31 bits' worth. |
| 428 | 155 With positive integer argument N, return random number in interval [0,N). |
| 1983 | 156 N can be a bignum, in which case the range of possible values is extended. |
| 428 | 157 With argument t, set the random number seed from the current time and pid. |
| 158 */ | |
| 159 (limit)) | |
| 160 { | |
| 161 EMACS_INT val; | |
| 162 unsigned long denominator; | |
| 163 | |
| 164 if (EQ (limit, Qt)) | |
| 771 | 165 seed_random (qxe_getpid () + time (NULL)); |
| 428 | 166 if (NATNUMP (limit) && !ZEROP (limit)) |
| 167 { | |
| 168 /* Try to take our random number from the higher bits of VAL, | |
| 169 not the lower, since (says Gentzel) the low bits of `random' | |
| 170 are less random than the higher ones. We do this by using the | |
| 171 quotient rather than the remainder. At the high end of the RNG | |
| 172 it's possible to get a quotient larger than limit; discarding | |
| 173 these values eliminates the bias that would otherwise appear | |
| 174 when using a large limit. */ | |
| 2039 | 175 denominator = ((unsigned long)1 << INT_VALBITS) / XINT (limit); |
| 428 | 176 do |
| 177 val = get_random () / denominator; | |
| 178 while (val >= XINT (limit)); | |
| 179 } | |
| 1983 | 180 #ifdef HAVE_BIGNUM |
| 181 else if (BIGNUMP (limit)) | |
| 182 { | |
| 183 bignum_random (scratch_bignum, XBIGNUM_DATA (limit)); | |
| 184 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 185 } | |
| 186 #endif | |
| 428 | 187 else |
| 188 val = get_random (); | |
| 189 | |
| 190 return make_int (val); | |
| 191 } | |
| 192 | |
| 193 /* Random data-structure functions */ | |
| 194 | |
| 195 #ifdef LOSING_BYTECODE | |
| 196 | |
| 197 /* #### Delete this shit */ | |
| 198 | |
| 199 /* Charcount is a misnomer here as we might be dealing with the | |
| 200 length of a vector or list, but emphasizes that we're not dealing | |
| 201 with Bytecounts in strings */ | |
| 202 static Charcount | |
| 203 length_with_bytecode_hack (Lisp_Object seq) | |
| 204 { | |
| 205 if (!COMPILED_FUNCTIONP (seq)) | |
| 206 return XINT (Flength (seq)); | |
| 207 else | |
| 208 { | |
| 440 | 209 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (seq); |
| 428 | 210 |
| 211 return (f->flags.interactivep ? COMPILED_INTERACTIVE : | |
| 212 f->flags.domainp ? COMPILED_DOMAIN : | |
| 213 COMPILED_DOC_STRING) | |
| 214 + 1; | |
| 215 } | |
| 216 } | |
| 217 | |
| 218 #endif /* LOSING_BYTECODE */ | |
| 219 | |
| 220 void | |
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221 check_losing_bytecode (const Ascbyte *function, Lisp_Object seq) |
| 428 | 222 { |
| 223 if (COMPILED_FUNCTIONP (seq)) | |
| 563 | 224 signal_ferror_with_frob |
| 225 (Qinvalid_argument, seq, | |
| 428 | 226 "As of 20.3, `%s' no longer works with compiled-function objects", |
| 227 function); | |
| 228 } | |
| 229 | |
| 230 DEFUN ("length", Flength, 1, 1, 0, /* | |
| 231 Return the length of vector, bit vector, list or string SEQUENCE. | |
| 232 */ | |
| 233 (sequence)) | |
| 234 { | |
| 235 retry: | |
| 236 if (STRINGP (sequence)) | |
| 826 | 237 return make_int (string_char_length (sequence)); |
| 428 | 238 else if (CONSP (sequence)) |
| 239 { | |
| 665 | 240 Elemcount len; |
| 428 | 241 GET_EXTERNAL_LIST_LENGTH (sequence, len); |
| 242 return make_int (len); | |
| 243 } | |
| 244 else if (VECTORP (sequence)) | |
| 245 return make_int (XVECTOR_LENGTH (sequence)); | |
| 246 else if (NILP (sequence)) | |
| 247 return Qzero; | |
| 248 else if (BIT_VECTORP (sequence)) | |
| 249 return make_int (bit_vector_length (XBIT_VECTOR (sequence))); | |
| 250 else | |
| 251 { | |
| 252 check_losing_bytecode ("length", sequence); | |
| 253 sequence = wrong_type_argument (Qsequencep, sequence); | |
| 254 goto retry; | |
| 255 } | |
| 256 } | |
| 257 | |
| 258 DEFUN ("safe-length", Fsafe_length, 1, 1, 0, /* | |
| 259 Return the length of a list, but avoid error or infinite loop. | |
| 260 This function never gets an error. If LIST is not really a list, | |
| 261 it returns 0. If LIST is circular, it returns a finite value | |
| 262 which is at least the number of distinct elements. | |
| 263 */ | |
| 264 (list)) | |
| 265 { | |
| 266 Lisp_Object hare, tortoise; | |
| 665 | 267 Elemcount len; |
| 428 | 268 |
| 269 for (hare = tortoise = list, len = 0; | |
| 270 CONSP (hare) && (! EQ (hare, tortoise) || len == 0); | |
| 271 hare = XCDR (hare), len++) | |
| 272 { | |
| 273 if (len & 1) | |
| 274 tortoise = XCDR (tortoise); | |
| 275 } | |
| 276 | |
| 277 return make_int (len); | |
| 278 } | |
| 279 | |
| 280 /*** string functions. ***/ | |
| 281 | |
| 282 DEFUN ("string-equal", Fstring_equal, 2, 2, 0, /* | |
| 283 Return t if two strings have identical contents. | |
| 284 Case is significant. Text properties are ignored. | |
| 285 \(Under XEmacs, `equal' also ignores text properties and extents in | |
| 286 strings, but this is not the case under FSF Emacs 19. In FSF Emacs 20 | |
| 287 `equal' is the same as in XEmacs, in that respect.) | |
| 288 Symbols are also allowed; their print names are used instead. | |
| 289 */ | |
| 444 | 290 (string1, string2)) |
| 428 | 291 { |
| 292 Bytecount len; | |
| 793 | 293 Lisp_Object p1, p2; |
| 428 | 294 |
| 444 | 295 if (SYMBOLP (string1)) |
| 296 p1 = XSYMBOL (string1)->name; | |
| 428 | 297 else |
| 298 { | |
| 444 | 299 CHECK_STRING (string1); |
| 793 | 300 p1 = string1; |
| 428 | 301 } |
| 302 | |
| 444 | 303 if (SYMBOLP (string2)) |
| 304 p2 = XSYMBOL (string2)->name; | |
| 428 | 305 else |
| 306 { | |
| 444 | 307 CHECK_STRING (string2); |
| 793 | 308 p2 = string2; |
| 428 | 309 } |
| 310 | |
| 793 | 311 return (((len = XSTRING_LENGTH (p1)) == XSTRING_LENGTH (p2)) && |
| 312 !memcmp (XSTRING_DATA (p1), XSTRING_DATA (p2), len)) ? Qt : Qnil; | |
| 428 | 313 } |
| 314 | |
| 801 | 315 DEFUN ("compare-strings", Fcompare_strings, 6, 7, 0, /* |
| 316 Compare the contents of two strings, maybe ignoring case. | |
| 317 In string STR1, skip the first START1 characters and stop at END1. | |
| 318 In string STR2, skip the first START2 characters and stop at END2. | |
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319 END1 and END2 default to the full lengths of the respective strings, |
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320 and arguments that are outside the string (negative STARTi or ENDi |
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321 greater than length) are coerced to 0 or string length as appropriate. |
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322 |
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323 Optional IGNORE-CASE non-nil means use case-insensitive comparison. |
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324 Case is significant by default. |
| 801 | 325 |
| 326 The value is t if the strings (or specified portions) match. | |
| 327 If string STR1 is less, the value is a negative number N; | |
| 328 - 1 - N is the number of characters that match at the beginning. | |
| 329 If string STR1 is greater, the value is a positive number N; | |
| 330 N - 1 is the number of characters that match at the beginning. | |
| 331 */ | |
| 332 (str1, start1, end1, str2, start2, end2, ignore_case)) | |
| 333 { | |
| 334 Charcount ccstart1, ccend1, ccstart2, ccend2; | |
| 335 Bytecount bstart1, blen1, bstart2, blen2; | |
| 336 Charcount matching; | |
| 337 int res; | |
| 338 | |
| 339 CHECK_STRING (str1); | |
| 340 CHECK_STRING (str2); | |
| 341 get_string_range_char (str1, start1, end1, &ccstart1, &ccend1, | |
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342 GB_HISTORICAL_STRING_BEHAVIOR|GB_COERCE_RANGE); |
| 801 | 343 get_string_range_char (str2, start2, end2, &ccstart2, &ccend2, |
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344 GB_HISTORICAL_STRING_BEHAVIOR|GB_COERCE_RANGE); |
| 801 | 345 |
| 346 bstart1 = string_index_char_to_byte (str1, ccstart1); | |
| 347 blen1 = string_offset_char_to_byte_len (str1, bstart1, ccend1 - ccstart1); | |
| 348 bstart2 = string_index_char_to_byte (str2, ccstart2); | |
| 349 blen2 = string_offset_char_to_byte_len (str2, bstart2, ccend2 - ccstart2); | |
| 350 | |
| 351 res = ((NILP (ignore_case) ? qxetextcmp_matching : qxetextcasecmp_matching) | |
| 352 (XSTRING_DATA (str1) + bstart1, blen1, | |
| 353 XSTRING_DATA (str2) + bstart2, blen2, | |
| 354 &matching)); | |
| 355 | |
| 356 if (!res) | |
| 357 return Qt; | |
| 358 else if (res > 0) | |
| 359 return make_int (1 + matching); | |
| 360 else | |
| 361 return make_int (-1 - matching); | |
| 362 } | |
| 363 | |
| 428 | 364 DEFUN ("string-lessp", Fstring_lessp, 2, 2, 0, /* |
| 365 Return t if first arg string is less than second in lexicographic order. | |
| 771 | 366 Comparison is simply done on a character-by-character basis using the |
| 367 numeric value of a character. (Note that this may not produce | |
| 368 particularly meaningful results under Mule if characters from | |
| 369 different charsets are being compared.) | |
| 428 | 370 |
| 371 Symbols are also allowed; their print names are used instead. | |
| 372 | |
| 771 | 373 Currently we don't do proper language-specific collation or handle |
| 374 multiple character sets. This may be changed when Unicode support | |
| 375 is implemented. | |
| 428 | 376 */ |
| 444 | 377 (string1, string2)) |
| 428 | 378 { |
| 793 | 379 Lisp_Object p1, p2; |
| 428 | 380 Charcount end, len2; |
| 381 int i; | |
| 382 | |
| 444 | 383 if (SYMBOLP (string1)) |
| 384 p1 = XSYMBOL (string1)->name; | |
| 793 | 385 else |
| 386 { | |
| 444 | 387 CHECK_STRING (string1); |
| 793 | 388 p1 = string1; |
| 428 | 389 } |
| 390 | |
| 444 | 391 if (SYMBOLP (string2)) |
| 392 p2 = XSYMBOL (string2)->name; | |
| 428 | 393 else |
| 394 { | |
| 444 | 395 CHECK_STRING (string2); |
| 793 | 396 p2 = string2; |
| 428 | 397 } |
| 398 | |
| 826 | 399 end = string_char_length (p1); |
| 400 len2 = string_char_length (p2); | |
| 428 | 401 if (end > len2) |
| 402 end = len2; | |
| 403 | |
| 404 { | |
| 867 | 405 Ibyte *ptr1 = XSTRING_DATA (p1); |
| 406 Ibyte *ptr2 = XSTRING_DATA (p2); | |
| 428 | 407 |
| 408 /* #### It is not really necessary to do this: We could compare | |
| 409 byte-by-byte and still get a reasonable comparison, since this | |
| 410 would compare characters with a charset in the same way. With | |
| 411 a little rearrangement of the leading bytes, we could make most | |
| 412 inter-charset comparisons work out the same, too; even if some | |
| 413 don't, this is not a big deal because inter-charset comparisons | |
| 414 aren't really well-defined anyway. */ | |
| 415 for (i = 0; i < end; i++) | |
| 416 { | |
| 867 | 417 if (itext_ichar (ptr1) != itext_ichar (ptr2)) |
| 418 return itext_ichar (ptr1) < itext_ichar (ptr2) ? Qt : Qnil; | |
| 419 INC_IBYTEPTR (ptr1); | |
| 420 INC_IBYTEPTR (ptr2); | |
| 428 | 421 } |
| 422 } | |
| 423 /* Can't do i < len2 because then comparison between "foo" and "foo^@" | |
| 424 won't work right in I18N2 case */ | |
| 425 return end < len2 ? Qt : Qnil; | |
| 426 } | |
| 427 | |
| 428 DEFUN ("string-modified-tick", Fstring_modified_tick, 1, 1, 0, /* | |
| 429 Return STRING's tick counter, incremented for each change to the string. | |
| 430 Each string has a tick counter which is incremented each time the contents | |
| 431 of the string are changed (e.g. with `aset'). It wraps around occasionally. | |
| 432 */ | |
| 433 (string)) | |
| 434 { | |
| 435 CHECK_STRING (string); | |
| 793 | 436 if (CONSP (XSTRING_PLIST (string)) && INTP (XCAR (XSTRING_PLIST (string)))) |
| 437 return XCAR (XSTRING_PLIST (string)); | |
| 428 | 438 else |
| 439 return Qzero; | |
| 440 } | |
| 441 | |
| 442 void | |
| 443 bump_string_modiff (Lisp_Object str) | |
| 444 { | |
| 793 | 445 Lisp_Object *ptr = &XSTRING_PLIST (str); |
| 428 | 446 |
| 447 #ifdef I18N3 | |
| 448 /* #### remove the `string-translatable' property from the string, | |
| 449 if there is one. */ | |
| 450 #endif | |
| 451 /* skip over extent info if it's there */ | |
| 452 if (CONSP (*ptr) && EXTENT_INFOP (XCAR (*ptr))) | |
| 453 ptr = &XCDR (*ptr); | |
| 454 if (CONSP (*ptr) && INTP (XCAR (*ptr))) | |
| 793 | 455 XCAR (*ptr) = make_int (1+XINT (XCAR (*ptr))); |
| 428 | 456 else |
| 457 *ptr = Fcons (make_int (1), *ptr); | |
| 458 } | |
| 459 | |
| 460 | |
| 461 enum concat_target_type { c_cons, c_string, c_vector, c_bit_vector }; | |
| 462 static Lisp_Object concat (int nargs, Lisp_Object *args, | |
| 463 enum concat_target_type target_type, | |
| 464 int last_special); | |
| 465 | |
| 466 Lisp_Object | |
| 444 | 467 concat2 (Lisp_Object string1, Lisp_Object string2) |
| 428 | 468 { |
| 469 Lisp_Object args[2]; | |
| 444 | 470 args[0] = string1; |
| 471 args[1] = string2; | |
| 428 | 472 return concat (2, args, c_string, 0); |
| 473 } | |
| 474 | |
| 475 Lisp_Object | |
| 444 | 476 concat3 (Lisp_Object string1, Lisp_Object string2, Lisp_Object string3) |
| 428 | 477 { |
| 478 Lisp_Object args[3]; | |
| 444 | 479 args[0] = string1; |
| 480 args[1] = string2; | |
| 481 args[2] = string3; | |
| 428 | 482 return concat (3, args, c_string, 0); |
| 483 } | |
| 484 | |
| 485 Lisp_Object | |
| 444 | 486 vconcat2 (Lisp_Object vec1, Lisp_Object vec2) |
| 428 | 487 { |
| 488 Lisp_Object args[2]; | |
| 444 | 489 args[0] = vec1; |
| 490 args[1] = vec2; | |
| 428 | 491 return concat (2, args, c_vector, 0); |
| 492 } | |
| 493 | |
| 494 Lisp_Object | |
| 444 | 495 vconcat3 (Lisp_Object vec1, Lisp_Object vec2, Lisp_Object vec3) |
| 428 | 496 { |
| 497 Lisp_Object args[3]; | |
| 444 | 498 args[0] = vec1; |
| 499 args[1] = vec2; | |
| 500 args[2] = vec3; | |
| 428 | 501 return concat (3, args, c_vector, 0); |
| 502 } | |
| 503 | |
| 504 DEFUN ("append", Fappend, 0, MANY, 0, /* | |
| 505 Concatenate all the arguments and make the result a list. | |
| 506 The result is a list whose elements are the elements of all the arguments. | |
| 507 Each argument may be a list, vector, bit vector, or string. | |
| 508 The last argument is not copied, just used as the tail of the new list. | |
| 509 Also see: `nconc'. | |
|
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510 |
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511 arguments: (&rest ARGS) |
| 428 | 512 */ |
| 513 (int nargs, Lisp_Object *args)) | |
| 514 { | |
| 515 return concat (nargs, args, c_cons, 1); | |
| 516 } | |
| 517 | |
| 518 DEFUN ("concat", Fconcat, 0, MANY, 0, /* | |
| 519 Concatenate all the arguments and make the result a string. | |
| 520 The result is a string whose elements are the elements of all the arguments. | |
| 521 Each argument may be a string or a list or vector of characters. | |
| 522 | |
| 523 As of XEmacs 21.0, this function does NOT accept individual integers | |
| 524 as arguments. Old code that relies on, for example, (concat "foo" 50) | |
| 525 returning "foo50" will fail. To fix such code, either apply | |
| 526 `int-to-string' to the integer argument, or use `format'. | |
|
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527 |
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|
528 arguments: (&rest ARGS) |
| 428 | 529 */ |
| 530 (int nargs, Lisp_Object *args)) | |
| 531 { | |
| 532 return concat (nargs, args, c_string, 0); | |
| 533 } | |
| 534 | |
| 535 DEFUN ("vconcat", Fvconcat, 0, MANY, 0, /* | |
| 536 Concatenate all the arguments and make the result a vector. | |
| 537 The result is a vector whose elements are the elements of all the arguments. | |
| 538 Each argument may be a list, vector, bit vector, or string. | |
|
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|
539 |
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|
540 arguments: (&rest ARGS) |
| 428 | 541 */ |
| 542 (int nargs, Lisp_Object *args)) | |
| 543 { | |
| 544 return concat (nargs, args, c_vector, 0); | |
| 545 } | |
| 546 | |
| 547 DEFUN ("bvconcat", Fbvconcat, 0, MANY, 0, /* | |
| 548 Concatenate all the arguments and make the result a bit vector. | |
| 549 The result is a bit vector whose elements are the elements of all the | |
| 550 arguments. Each argument may be a list, vector, bit vector, or string. | |
|
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parents:
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|
551 |
|
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diff
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|
552 arguments: (&rest ARGS) |
| 428 | 553 */ |
| 554 (int nargs, Lisp_Object *args)) | |
| 555 { | |
| 556 return concat (nargs, args, c_bit_vector, 0); | |
| 557 } | |
| 558 | |
| 559 /* Copy a (possibly dotted) list. LIST must be a cons. | |
| 560 Can't use concat (1, &alist, c_cons, 0) - doesn't handle dotted lists. */ | |
| 561 static Lisp_Object | |
| 562 copy_list (Lisp_Object list) | |
| 563 { | |
| 564 Lisp_Object list_copy = Fcons (XCAR (list), XCDR (list)); | |
| 565 Lisp_Object last = list_copy; | |
| 566 Lisp_Object hare, tortoise; | |
| 665 | 567 Elemcount len; |
| 428 | 568 |
| 569 for (tortoise = hare = XCDR (list), len = 1; | |
| 570 CONSP (hare); | |
| 571 hare = XCDR (hare), len++) | |
| 572 { | |
| 573 XCDR (last) = Fcons (XCAR (hare), XCDR (hare)); | |
| 574 last = XCDR (last); | |
| 575 | |
| 576 if (len < CIRCULAR_LIST_SUSPICION_LENGTH) | |
| 577 continue; | |
| 578 if (len & 1) | |
| 579 tortoise = XCDR (tortoise); | |
| 580 if (EQ (tortoise, hare)) | |
| 581 signal_circular_list_error (list); | |
| 582 } | |
| 583 | |
| 584 return list_copy; | |
| 585 } | |
| 586 | |
| 587 DEFUN ("copy-list", Fcopy_list, 1, 1, 0, /* | |
| 588 Return a copy of list LIST, which may be a dotted list. | |
| 589 The elements of LIST are not copied; they are shared | |
| 590 with the original. | |
| 591 */ | |
| 592 (list)) | |
| 593 { | |
| 594 again: | |
| 595 if (NILP (list)) return list; | |
| 596 if (CONSP (list)) return copy_list (list); | |
| 597 | |
| 598 list = wrong_type_argument (Qlistp, list); | |
| 599 goto again; | |
| 600 } | |
| 601 | |
| 602 DEFUN ("copy-sequence", Fcopy_sequence, 1, 1, 0, /* | |
| 603 Return a copy of list, vector, bit vector or string SEQUENCE. | |
| 604 The elements of a list or vector are not copied; they are shared | |
| 605 with the original. SEQUENCE may be a dotted list. | |
| 606 */ | |
| 607 (sequence)) | |
| 608 { | |
| 609 again: | |
| 610 if (NILP (sequence)) return sequence; | |
| 611 if (CONSP (sequence)) return copy_list (sequence); | |
| 612 if (STRINGP (sequence)) return concat (1, &sequence, c_string, 0); | |
| 613 if (VECTORP (sequence)) return concat (1, &sequence, c_vector, 0); | |
| 614 if (BIT_VECTORP (sequence)) return concat (1, &sequence, c_bit_vector, 0); | |
| 615 | |
| 616 check_losing_bytecode ("copy-sequence", sequence); | |
| 617 sequence = wrong_type_argument (Qsequencep, sequence); | |
| 618 goto again; | |
| 619 } | |
| 620 | |
| 621 struct merge_string_extents_struct | |
| 622 { | |
| 623 Lisp_Object string; | |
| 624 Bytecount entry_offset; | |
| 625 Bytecount entry_length; | |
| 626 }; | |
| 627 | |
| 628 static Lisp_Object | |
| 629 concat (int nargs, Lisp_Object *args, | |
| 630 enum concat_target_type target_type, | |
| 631 int last_special) | |
| 632 { | |
| 633 Lisp_Object val; | |
| 634 Lisp_Object tail = Qnil; | |
| 635 int toindex; | |
| 636 int argnum; | |
| 637 Lisp_Object last_tail; | |
| 638 Lisp_Object prev; | |
| 639 struct merge_string_extents_struct *args_mse = 0; | |
| 867 | 640 Ibyte *string_result = 0; |
| 641 Ibyte *string_result_ptr = 0; | |
| 428 | 642 struct gcpro gcpro1; |
| 851 | 643 int sdep = specpdl_depth (); |
| 428 | 644 |
| 645 /* The modus operandi in Emacs is "caller gc-protects args". | |
| 646 However, concat is called many times in Emacs on freshly | |
| 647 created stuff. So we help those callers out by protecting | |
| 648 the args ourselves to save them a lot of temporary-variable | |
| 649 grief. */ | |
| 650 | |
| 651 GCPRO1 (args[0]); | |
| 652 gcpro1.nvars = nargs; | |
| 653 | |
| 654 #ifdef I18N3 | |
| 655 /* #### if the result is a string and any of the strings have a string | |
| 656 for the `string-translatable' property, then concat should also | |
| 657 concat the args but use the `string-translatable' strings, and store | |
| 658 the result in the returned string's `string-translatable' property. */ | |
| 659 #endif | |
| 660 if (target_type == c_string) | |
| 661 args_mse = alloca_array (struct merge_string_extents_struct, nargs); | |
| 662 | |
| 663 /* In append, the last arg isn't treated like the others */ | |
| 664 if (last_special && nargs > 0) | |
| 665 { | |
| 666 nargs--; | |
| 667 last_tail = args[nargs]; | |
| 668 } | |
| 669 else | |
| 670 last_tail = Qnil; | |
| 671 | |
| 672 /* Check and coerce the arguments. */ | |
| 673 for (argnum = 0; argnum < nargs; argnum++) | |
| 674 { | |
| 675 Lisp_Object seq = args[argnum]; | |
| 676 if (LISTP (seq)) | |
| 677 ; | |
| 678 else if (VECTORP (seq) || STRINGP (seq) || BIT_VECTORP (seq)) | |
| 679 ; | |
| 680 #ifdef LOSING_BYTECODE | |
| 681 else if (COMPILED_FUNCTIONP (seq)) | |
| 682 /* Urk! We allow this, for "compatibility"... */ | |
| 683 ; | |
| 684 #endif | |
| 685 #if 0 /* removed for XEmacs 21 */ | |
| 686 else if (INTP (seq)) | |
| 687 /* This is too revolting to think about but maintains | |
| 688 compatibility with FSF (and lots and lots of old code). */ | |
| 689 args[argnum] = Fnumber_to_string (seq); | |
| 690 #endif | |
| 691 else | |
| 692 { | |
| 693 check_losing_bytecode ("concat", seq); | |
| 694 args[argnum] = wrong_type_argument (Qsequencep, seq); | |
| 695 } | |
| 696 | |
| 697 if (args_mse) | |
| 698 { | |
| 699 if (STRINGP (seq)) | |
| 700 args_mse[argnum].string = seq; | |
| 701 else | |
| 702 args_mse[argnum].string = Qnil; | |
| 703 } | |
| 704 } | |
| 705 | |
| 706 { | |
| 707 /* Charcount is a misnomer here as we might be dealing with the | |
| 708 length of a vector or list, but emphasizes that we're not dealing | |
| 709 with Bytecounts in strings */ | |
| 710 Charcount total_length; | |
| 711 | |
| 712 for (argnum = 0, total_length = 0; argnum < nargs; argnum++) | |
| 713 { | |
| 714 #ifdef LOSING_BYTECODE | |
| 715 Charcount thislen = length_with_bytecode_hack (args[argnum]); | |
| 716 #else | |
| 717 Charcount thislen = XINT (Flength (args[argnum])); | |
| 718 #endif | |
| 719 total_length += thislen; | |
| 720 } | |
| 721 | |
| 722 switch (target_type) | |
| 723 { | |
| 724 case c_cons: | |
| 725 if (total_length == 0) | |
| 851 | 726 { |
| 727 unbind_to (sdep); | |
| 728 /* In append, if all but last arg are nil, return last arg */ | |
| 729 RETURN_UNGCPRO (last_tail); | |
| 730 } | |
| 428 | 731 val = Fmake_list (make_int (total_length), Qnil); |
| 732 break; | |
| 733 case c_vector: | |
| 734 val = make_vector (total_length, Qnil); | |
| 735 break; | |
| 736 case c_bit_vector: | |
| 737 val = make_bit_vector (total_length, Qzero); | |
| 738 break; | |
| 739 case c_string: | |
| 740 /* We don't make the string yet because we don't know the | |
| 741 actual number of bytes. This loop was formerly written | |
| 742 to call Fmake_string() here and then call set_string_char() | |
| 743 for each char. This seems logical enough but is waaaaaaaay | |
| 744 slow -- set_string_char() has to scan the whole string up | |
| 745 to the place where the substitution is called for in order | |
| 746 to find the place to change, and may have to do some | |
| 747 realloc()ing in order to make the char fit properly. | |
| 748 O(N^2) yuckage. */ | |
| 749 val = Qnil; | |
| 851 | 750 string_result = |
| 867 | 751 (Ibyte *) MALLOC_OR_ALLOCA (total_length * MAX_ICHAR_LEN); |
| 428 | 752 string_result_ptr = string_result; |
| 753 break; | |
| 754 default: | |
| 442 | 755 val = Qnil; |
| 2500 | 756 ABORT (); |
| 428 | 757 } |
| 758 } | |
| 759 | |
| 760 | |
| 761 if (CONSP (val)) | |
| 762 tail = val, toindex = -1; /* -1 in toindex is flag we are | |
| 763 making a list */ | |
| 764 else | |
| 765 toindex = 0; | |
| 766 | |
| 767 prev = Qnil; | |
| 768 | |
| 769 for (argnum = 0; argnum < nargs; argnum++) | |
| 770 { | |
| 771 Charcount thisleni = 0; | |
| 772 Charcount thisindex = 0; | |
| 773 Lisp_Object seq = args[argnum]; | |
| 867 | 774 Ibyte *string_source_ptr = 0; |
| 775 Ibyte *string_prev_result_ptr = string_result_ptr; | |
| 428 | 776 |
| 777 if (!CONSP (seq)) | |
| 778 { | |
| 779 #ifdef LOSING_BYTECODE | |
| 780 thisleni = length_with_bytecode_hack (seq); | |
| 781 #else | |
| 782 thisleni = XINT (Flength (seq)); | |
| 783 #endif | |
| 784 } | |
| 785 if (STRINGP (seq)) | |
| 786 string_source_ptr = XSTRING_DATA (seq); | |
| 787 | |
| 788 while (1) | |
| 789 { | |
| 790 Lisp_Object elt; | |
| 791 | |
| 792 /* We've come to the end of this arg, so exit. */ | |
| 793 if (NILP (seq)) | |
| 794 break; | |
| 795 | |
| 796 /* Fetch next element of `seq' arg into `elt' */ | |
| 797 if (CONSP (seq)) | |
| 798 { | |
| 799 elt = XCAR (seq); | |
| 800 seq = XCDR (seq); | |
| 801 } | |
| 802 else | |
| 803 { | |
| 804 if (thisindex >= thisleni) | |
| 805 break; | |
| 806 | |
| 807 if (STRINGP (seq)) | |
| 808 { | |
| 867 | 809 elt = make_char (itext_ichar (string_source_ptr)); |
| 810 INC_IBYTEPTR (string_source_ptr); | |
| 428 | 811 } |
| 812 else if (VECTORP (seq)) | |
| 813 elt = XVECTOR_DATA (seq)[thisindex]; | |
| 814 else if (BIT_VECTORP (seq)) | |
| 815 elt = make_int (bit_vector_bit (XBIT_VECTOR (seq), | |
| 816 thisindex)); | |
| 817 else | |
| 818 elt = Felt (seq, make_int (thisindex)); | |
| 819 thisindex++; | |
| 820 } | |
| 821 | |
| 822 /* Store into result */ | |
| 823 if (toindex < 0) | |
| 824 { | |
| 825 /* toindex negative means we are making a list */ | |
| 826 XCAR (tail) = elt; | |
| 827 prev = tail; | |
| 828 tail = XCDR (tail); | |
| 829 } | |
| 830 else if (VECTORP (val)) | |
| 831 XVECTOR_DATA (val)[toindex++] = elt; | |
| 832 else if (BIT_VECTORP (val)) | |
| 833 { | |
| 834 CHECK_BIT (elt); | |
| 835 set_bit_vector_bit (XBIT_VECTOR (val), toindex++, XINT (elt)); | |
| 836 } | |
| 837 else | |
| 838 { | |
| 839 CHECK_CHAR_COERCE_INT (elt); | |
| 867 | 840 string_result_ptr += set_itext_ichar (string_result_ptr, |
| 428 | 841 XCHAR (elt)); |
| 842 } | |
| 843 } | |
| 844 if (args_mse) | |
| 845 { | |
| 846 args_mse[argnum].entry_offset = | |
| 847 string_prev_result_ptr - string_result; | |
| 848 args_mse[argnum].entry_length = | |
| 849 string_result_ptr - string_prev_result_ptr; | |
| 850 } | |
| 851 } | |
| 852 | |
| 853 /* Now we finally make the string. */ | |
| 854 if (target_type == c_string) | |
| 855 { | |
| 856 val = make_string (string_result, string_result_ptr - string_result); | |
| 857 for (argnum = 0; argnum < nargs; argnum++) | |
| 858 { | |
| 859 if (STRINGP (args_mse[argnum].string)) | |
| 860 copy_string_extents (val, args_mse[argnum].string, | |
| 861 args_mse[argnum].entry_offset, 0, | |
| 862 args_mse[argnum].entry_length); | |
| 863 } | |
| 864 } | |
| 865 | |
| 866 if (!NILP (prev)) | |
| 867 XCDR (prev) = last_tail; | |
| 868 | |
| 851 | 869 unbind_to (sdep); |
| 428 | 870 RETURN_UNGCPRO (val); |
| 871 } | |
| 872 | |
| 873 DEFUN ("copy-alist", Fcopy_alist, 1, 1, 0, /* | |
| 874 Return a copy of ALIST. | |
| 875 This is an alist which represents the same mapping from objects to objects, | |
| 876 but does not share the alist structure with ALIST. | |
| 877 The objects mapped (cars and cdrs of elements of the alist) | |
| 878 are shared, however. | |
| 879 Elements of ALIST that are not conses are also shared. | |
| 880 */ | |
| 881 (alist)) | |
| 882 { | |
| 883 Lisp_Object tail; | |
| 884 | |
| 885 if (NILP (alist)) | |
| 886 return alist; | |
| 887 CHECK_CONS (alist); | |
| 888 | |
| 889 alist = concat (1, &alist, c_cons, 0); | |
| 890 for (tail = alist; CONSP (tail); tail = XCDR (tail)) | |
| 891 { | |
| 892 Lisp_Object car = XCAR (tail); | |
| 893 | |
| 894 if (CONSP (car)) | |
| 895 XCAR (tail) = Fcons (XCAR (car), XCDR (car)); | |
| 896 } | |
| 897 return alist; | |
| 898 } | |
| 899 | |
| 900 DEFUN ("copy-tree", Fcopy_tree, 1, 2, 0, /* | |
| 901 Return a copy of a list and substructures. | |
| 902 The argument is copied, and any lists contained within it are copied | |
| 903 recursively. Circularities and shared substructures are not preserved. | |
| 904 Second arg VECP causes vectors to be copied, too. Strings and bit vectors | |
| 905 are not copied. | |
| 906 */ | |
| 907 (arg, vecp)) | |
| 908 { | |
| 454 | 909 return safe_copy_tree (arg, vecp, 0); |
| 910 } | |
| 911 | |
| 912 Lisp_Object | |
| 913 safe_copy_tree (Lisp_Object arg, Lisp_Object vecp, int depth) | |
| 914 { | |
| 915 if (depth > 200) | |
| 563 | 916 stack_overflow ("Stack overflow in copy-tree", arg); |
| 454 | 917 |
| 428 | 918 if (CONSP (arg)) |
| 919 { | |
| 920 Lisp_Object rest; | |
| 921 rest = arg = Fcopy_sequence (arg); | |
| 922 while (CONSP (rest)) | |
| 923 { | |
| 924 Lisp_Object elt = XCAR (rest); | |
| 925 QUIT; | |
| 926 if (CONSP (elt) || VECTORP (elt)) | |
| 454 | 927 XCAR (rest) = safe_copy_tree (elt, vecp, depth + 1); |
| 428 | 928 if (VECTORP (XCDR (rest))) /* hack for (a b . [c d]) */ |
| 454 | 929 XCDR (rest) = safe_copy_tree (XCDR (rest), vecp, depth +1); |
| 428 | 930 rest = XCDR (rest); |
| 931 } | |
| 932 } | |
| 933 else if (VECTORP (arg) && ! NILP (vecp)) | |
| 934 { | |
| 935 int i = XVECTOR_LENGTH (arg); | |
| 936 int j; | |
| 937 arg = Fcopy_sequence (arg); | |
| 938 for (j = 0; j < i; j++) | |
| 939 { | |
| 940 Lisp_Object elt = XVECTOR_DATA (arg) [j]; | |
| 941 QUIT; | |
| 942 if (CONSP (elt) || VECTORP (elt)) | |
| 454 | 943 XVECTOR_DATA (arg) [j] = safe_copy_tree (elt, vecp, depth + 1); |
| 428 | 944 } |
| 945 } | |
| 946 return arg; | |
| 947 } | |
| 948 | |
| 949 DEFUN ("subseq", Fsubseq, 2, 3, 0, /* | |
| 442 | 950 Return the subsequence of SEQUENCE starting at START and ending before END. |
| 951 END may be omitted; then the subsequence runs to the end of SEQUENCE. | |
| 952 If START or END is negative, it counts from the end. | |
| 953 The returned subsequence is always of the same type as SEQUENCE. | |
| 954 If SEQUENCE is a string, relevant parts of the string-extent-data | |
| 955 are copied to the new string. | |
| 428 | 956 */ |
| 442 | 957 (sequence, start, end)) |
| 428 | 958 { |
| 442 | 959 EMACS_INT len, s, e; |
| 960 | |
|
5089
99f8ebc082d9
Make #'substring an alias of #'subseq; give the latter the byte code.
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5051
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|
961 if (STRINGP (sequence)) |
|
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|
962 { |
|
99f8ebc082d9
Make #'substring an alias of #'subseq; give the latter the byte code.
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|
963 Charcount ccstart, ccend; |
|
99f8ebc082d9
Make #'substring an alias of #'subseq; give the latter the byte code.
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|
964 Bytecount bstart, blen; |
|
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|
965 Lisp_Object val; |
|
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|
966 |
|
99f8ebc082d9
Make #'substring an alias of #'subseq; give the latter the byte code.
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|
967 CHECK_INT (start); |
|
99f8ebc082d9
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|
968 get_string_range_char (sequence, start, end, &ccstart, &ccend, |
|
99f8ebc082d9
Make #'substring an alias of #'subseq; give the latter the byte code.
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|
969 GB_HISTORICAL_STRING_BEHAVIOR); |
|
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Make #'substring an alias of #'subseq; give the latter the byte code.
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|
970 bstart = string_index_char_to_byte (sequence, ccstart); |
|
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|
971 blen = string_offset_char_to_byte_len (sequence, bstart, ccend - ccstart); |
|
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|
972 val = make_string (XSTRING_DATA (sequence) + bstart, blen); |
|
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|
973 /* Copy any applicable extent information into the new string. */ |
|
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Make #'substring an alias of #'subseq; give the latter the byte code.
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|
974 copy_string_extents (val, sequence, 0, bstart, blen); |
|
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Make #'substring an alias of #'subseq; give the latter the byte code.
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|
975 return val; |
|
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|
976 } |
|
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|
977 |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
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4797
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|
978 CHECK_SEQUENCE (sequence); |
|
8431b52e43b1
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|
979 |
| 442 | 980 len = XINT (Flength (sequence)); |
| 981 | |
| 982 CHECK_INT (start); | |
| 983 s = XINT (start); | |
| 984 if (s < 0) | |
| 985 s = len + s; | |
| 986 | |
| 987 if (NILP (end)) | |
| 988 e = len; | |
| 428 | 989 else |
| 990 { | |
| 442 | 991 CHECK_INT (end); |
| 992 e = XINT (end); | |
| 993 if (e < 0) | |
| 994 e = len + e; | |
| 428 | 995 } |
| 996 | |
| 442 | 997 if (!(0 <= s && s <= e && e <= len)) |
| 998 args_out_of_range_3 (sequence, make_int (s), make_int (e)); | |
| 999 | |
| 1000 if (VECTORP (sequence)) | |
| 428 | 1001 { |
| 442 | 1002 Lisp_Object result = make_vector (e - s, Qnil); |
| 428 | 1003 EMACS_INT i; |
| 442 | 1004 Lisp_Object *in_elts = XVECTOR_DATA (sequence); |
| 428 | 1005 Lisp_Object *out_elts = XVECTOR_DATA (result); |
| 1006 | |
| 442 | 1007 for (i = s; i < e; i++) |
| 1008 out_elts[i - s] = in_elts[i]; | |
| 428 | 1009 return result; |
| 1010 } | |
| 442 | 1011 else if (LISTP (sequence)) |
| 428 | 1012 { |
| 1013 Lisp_Object result = Qnil; | |
| 1014 EMACS_INT i; | |
| 1015 | |
| 442 | 1016 sequence = Fnthcdr (make_int (s), sequence); |
| 1017 | |
| 1018 for (i = s; i < e; i++) | |
| 428 | 1019 { |
| 442 | 1020 result = Fcons (Fcar (sequence), result); |
| 1021 sequence = Fcdr (sequence); | |
| 428 | 1022 } |
| 1023 | |
| 1024 return Fnreverse (result); | |
| 1025 } | |
| 442 | 1026 else if (BIT_VECTORP (sequence)) |
| 1027 { | |
| 1028 Lisp_Object result = make_bit_vector (e - s, Qzero); | |
| 1029 EMACS_INT i; | |
| 1030 | |
| 1031 for (i = s; i < e; i++) | |
| 1032 set_bit_vector_bit (XBIT_VECTOR (result), i - s, | |
| 1033 bit_vector_bit (XBIT_VECTOR (sequence), i)); | |
| 1034 return result; | |
| 1035 } | |
| 1036 else | |
| 1037 { | |
|
4995
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|
1038 ABORT (); /* unreachable, since CHECK_SEQUENCE (sequence) did not |
|
8431b52e43b1
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|
1039 error */ |
| 442 | 1040 return Qnil; |
| 1041 } | |
| 428 | 1042 } |
| 1043 | |
| 771 | 1044 /* Split STRING into a list of substrings. The substrings are the |
|
5035
b1e48555be7d
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|
1045 parts of original STRING separated by SEPCHAR. |
|
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|
1046 |
|
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|
1047 If UNESCAPE is non-zero, ESCAPECHAR specifies a character that will quote |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
1048 SEPCHAR, and cause it not to split STRING. A double ESCAPECHAR is |
|
b1e48555be7d
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|
1049 necessary for ESCAPECHAR to appear once in a substring. */ |
|
b1e48555be7d
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|
1050 |
| 771 | 1051 static Lisp_Object |
| 867 | 1052 split_string_by_ichar_1 (const Ibyte *string, Bytecount size, |
|
5035
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|
1053 Ichar sepchar, int unescape, Ichar escapechar) |
| 771 | 1054 { |
| 1055 Lisp_Object result = Qnil; | |
| 867 | 1056 const Ibyte *end = string + size; |
| 771 | 1057 |
|
5035
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|
1058 if (unescape) |
| 771 | 1059 { |
|
5035
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|
1060 Ibyte unescape_buffer[64], *unescape_buffer_ptr = unescape_buffer, |
|
b1e48555be7d
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|
1061 escaped[MAX_ICHAR_LEN], *unescape_cursor; |
|
5036
9624523604c5
Use better types when ESCAPECHAR is specified, split_string_by_ichar_1
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|
1062 Bytecount unescape_buffer_size = countof (unescape_buffer), |
|
9624523604c5
Use better types when ESCAPECHAR is specified, split_string_by_ichar_1
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|
1063 escaped_len = set_itext_ichar (escaped, escapechar); |
|
9624523604c5
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|
1064 Boolint deleting_escapes, previous_escaped; |
|
9624523604c5
Use better types when ESCAPECHAR is specified, split_string_by_ichar_1
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|
1065 Ichar pchar; |
|
5035
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|
1066 |
|
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|
1067 while (1) |
|
b1e48555be7d
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|
1068 { |
|
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|
1069 const Ibyte *p = string, *cursor; |
|
b1e48555be7d
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|
1070 deleting_escapes = 0; |
|
b1e48555be7d
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|
1071 previous_escaped = 0; |
|
b1e48555be7d
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|
1072 |
|
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|
1073 while (p < end) |
|
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|
1074 { |
|
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|
1075 pchar = itext_ichar (p); |
|
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|
1076 |
|
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changeset
|
1077 if (pchar == sepchar) |
|
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changeset
|
1078 { |
|
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|
1079 if (!previous_escaped) |
|
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|
1080 { |
|
b1e48555be7d
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diff
changeset
|
1081 break; |
|
b1e48555be7d
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|
1082 } |
|
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|
1083 } |
|
b1e48555be7d
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diff
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|
1084 else if (pchar == escapechar |
|
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changeset
|
1085 /* Doubled escapes don't escape: */ |
|
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|
1086 && !previous_escaped) |
|
b1e48555be7d
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changeset
|
1087 { |
|
b1e48555be7d
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parents:
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diff
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|
1088 ++deleting_escapes; |
|
b1e48555be7d
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|
1089 previous_escaped = 1; |
|
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|
1090 } |
|
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changeset
|
1091 else |
|
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changeset
|
1092 { |
|
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changeset
|
1093 previous_escaped = 0; |
|
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|
1094 } |
|
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changeset
|
1095 |
|
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diff
changeset
|
1096 INC_IBYTEPTR (p); |
|
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|
1097 } |
|
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|
1098 |
|
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|
1099 if (deleting_escapes) |
|
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|
1100 { |
|
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diff
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|
1101 if (((p - string) - (escaped_len * deleting_escapes)) |
|
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|
1102 > unescape_buffer_size) |
|
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|
1103 { |
|
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|
1104 unescape_buffer_size = |
|
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changeset
|
1105 ((p - string) - (escaped_len * deleting_escapes)) * 1.5; |
|
b1e48555be7d
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changeset
|
1106 unescape_buffer_ptr = alloca_ibytes (unescape_buffer_size); |
|
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|
1107 } |
|
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|
1108 |
|
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|
1109 cursor = string; |
|
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changeset
|
1110 unescape_cursor = unescape_buffer_ptr; |
|
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|
1111 previous_escaped = 0; |
|
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|
1112 |
|
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changeset
|
1113 while (cursor < p) |
|
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|
1114 { |
|
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|
1115 pchar = itext_ichar (cursor); |
|
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|
1116 |
|
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|
1117 if (pchar != escapechar || previous_escaped) |
|
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parents:
5034
diff
changeset
|
1118 { |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1119 memcpy (unescape_cursor, cursor, |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1120 itext_ichar_len (cursor)); |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1121 INC_IBYTEPTR (unescape_cursor); |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1122 } |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1123 |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1124 previous_escaped = !previous_escaped |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1125 && (pchar == escapechar); |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1126 |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1127 INC_IBYTEPTR (cursor); |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1128 } |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1129 |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1130 result = Fcons (make_string (unescape_buffer_ptr, |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1131 unescape_cursor |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1132 - unescape_buffer_ptr), |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1133 result); |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1134 } |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1135 else |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1136 { |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1137 result = Fcons (make_string (string, p - string), result); |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1138 } |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1139 if (p < end) |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1140 { |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1141 string = p; |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1142 INC_IBYTEPTR (string); /* skip sepchar */ |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1143 } |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1144 else |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1145 break; |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1146 } |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1147 } |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1148 else |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1149 { |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1150 while (1) |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1151 { |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1152 const Ibyte *p = string; |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1153 while (p < end) |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1154 { |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1155 if (itext_ichar (p) == sepchar) |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1156 break; |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1157 INC_IBYTEPTR (p); |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1158 } |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1159 result = Fcons (make_string (string, p - string), result); |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1160 if (p < end) |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1161 { |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1162 string = p; |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1163 INC_IBYTEPTR (string); /* skip sepchar */ |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1164 } |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1165 else |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1166 break; |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1167 } |
| 771 | 1168 } |
| 1169 return Fnreverse (result); | |
| 1170 } | |
| 1171 | |
| 1172 /* The same as the above, except PATH is an external C string (it is | |
| 1173 converted using Qfile_name), and sepchar is hardcoded to SEPCHAR | |
| 1174 (':' or whatever). */ | |
| 1175 Lisp_Object | |
| 1176 split_external_path (const Extbyte *path) | |
| 1177 { | |
| 1178 Bytecount newlen; | |
| 867 | 1179 Ibyte *newpath; |
| 771 | 1180 if (!path) |
| 1181 return Qnil; | |
| 1182 | |
| 1183 TO_INTERNAL_FORMAT (C_STRING, path, ALLOCA, (newpath, newlen), Qfile_name); | |
| 1184 | |
| 1185 /* #### Does this make sense? It certainly does for | |
| 1186 split_env_path(), but it looks dubious here. Does any code | |
| 1187 depend on split_external_path("") returning nil instead of an empty | |
| 1188 string? */ | |
| 1189 if (!newlen) | |
| 1190 return Qnil; | |
| 1191 | |
|
5035
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1192 return split_string_by_ichar_1 (newpath, newlen, SEPCHAR, 0, 0); |
| 771 | 1193 } |
| 1194 | |
| 1195 Lisp_Object | |
| 867 | 1196 split_env_path (const CIbyte *evarname, const Ibyte *default_) |
| 771 | 1197 { |
| 867 | 1198 const Ibyte *path = 0; |
| 771 | 1199 if (evarname) |
| 1200 path = egetenv (evarname); | |
| 1201 if (!path) | |
| 1202 path = default_; | |
| 1203 if (!path) | |
| 1204 return Qnil; | |
|
5035
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1205 return split_string_by_ichar_1 (path, qxestrlen (path), SEPCHAR, 0, 0); |
| 771 | 1206 } |
| 1207 | |
| 1208 /* Ben thinks this function should not exist or be exported to Lisp. | |
| 1209 We use it to define split-path-string in subr.el (not!). */ | |
| 1210 | |
|
5035
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1211 DEFUN ("split-string-by-char", Fsplit_string_by_char, 2, 3, 0, /* |
| 771 | 1212 Split STRING into a list of substrings originally separated by SEPCHAR. |
|
5035
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1213 |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1214 With optional ESCAPE-CHAR, any instances of SEPCHAR preceded by that |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1215 character will not split the string, and a double instance of ESCAPE-CHAR |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1216 will be necessary for a single ESCAPE-CHAR to appear in the output string. |
| 771 | 1217 */ |
|
5035
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1218 (string, sepchar, escape_char)) |
| 771 | 1219 { |
|
5035
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1220 Ichar escape_ichar = 0; |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1221 |
| 771 | 1222 CHECK_STRING (string); |
| 1223 CHECK_CHAR (sepchar); | |
|
5035
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1224 if (!NILP (escape_char)) |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1225 { |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1226 CHECK_CHAR (escape_char); |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1227 escape_ichar = XCHAR (escape_char); |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1228 } |
| 867 | 1229 return split_string_by_ichar_1 (XSTRING_DATA (string), |
|
5035
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1230 XSTRING_LENGTH (string), |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1231 XCHAR (sepchar), |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1232 !NILP (escape_char), escape_ichar); |
| 771 | 1233 } |
| 1234 | |
| 1235 /* #### This was supposed to be in subr.el, but is used VERY early in | |
| 1236 the bootstrap process, so it goes here. Damn. */ | |
| 1237 | |
| 1238 DEFUN ("split-path", Fsplit_path, 1, 1, 0, /* | |
| 1239 Explode a search path into a list of strings. | |
| 1240 The path components are separated with the characters specified | |
| 1241 with `path-separator'. | |
| 1242 */ | |
| 1243 (path)) | |
| 1244 { | |
| 1245 CHECK_STRING (path); | |
| 1246 | |
| 1247 while (!STRINGP (Vpath_separator) | |
| 826 | 1248 || (string_char_length (Vpath_separator) != 1)) |
| 771 | 1249 Vpath_separator = signal_continuable_error |
| 1250 (Qinvalid_state, | |
| 1251 "`path-separator' should be set to a single-character string", | |
| 1252 Vpath_separator); | |
| 1253 | |
| 867 | 1254 return (split_string_by_ichar_1 |
| 771 | 1255 (XSTRING_DATA (path), XSTRING_LENGTH (path), |
|
5035
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5034
diff
changeset
|
1256 itext_ichar (XSTRING_DATA (Vpath_separator)), 0, 0)); |
| 771 | 1257 } |
| 1258 | |
| 428 | 1259 |
| 1260 DEFUN ("nthcdr", Fnthcdr, 2, 2, 0, /* | |
| 1261 Take cdr N times on LIST, and return the result. | |
| 1262 */ | |
| 1263 (n, list)) | |
| 1264 { | |
| 1920 | 1265 /* This function can GC */ |
| 647 | 1266 REGISTER EMACS_INT i; |
| 428 | 1267 REGISTER Lisp_Object tail = list; |
| 1268 CHECK_NATNUM (n); | |
| 1269 for (i = XINT (n); i; i--) | |
| 1270 { | |
| 1271 if (CONSP (tail)) | |
| 1272 tail = XCDR (tail); | |
| 1273 else if (NILP (tail)) | |
| 1274 return Qnil; | |
| 1275 else | |
| 1276 { | |
| 1277 tail = wrong_type_argument (Qlistp, tail); | |
| 1278 i++; | |
| 1279 } | |
| 1280 } | |
| 1281 return tail; | |
| 1282 } | |
| 1283 | |
| 1284 DEFUN ("nth", Fnth, 2, 2, 0, /* | |
| 1285 Return the Nth element of LIST. | |
| 1286 N counts from zero. If LIST is not that long, nil is returned. | |
| 1287 */ | |
| 1288 (n, list)) | |
| 1289 { | |
| 1920 | 1290 /* This function can GC */ |
| 428 | 1291 return Fcar (Fnthcdr (n, list)); |
| 1292 } | |
| 1293 | |
| 1294 DEFUN ("elt", Felt, 2, 2, 0, /* | |
| 1295 Return element of SEQUENCE at index N. | |
| 1296 */ | |
| 1297 (sequence, n)) | |
| 1298 { | |
| 1920 | 1299 /* This function can GC */ |
| 428 | 1300 retry: |
| 1301 CHECK_INT_COERCE_CHAR (n); /* yuck! */ | |
| 1302 if (LISTP (sequence)) | |
| 1303 { | |
| 1304 Lisp_Object tem = Fnthcdr (n, sequence); | |
| 1305 /* #### Utterly, completely, fucking disgusting. | |
| 1306 * #### The whole point of "elt" is that it operates on | |
| 1307 * #### sequences, and does error- (bounds-) checking. | |
| 1308 */ | |
| 1309 if (CONSP (tem)) | |
| 1310 return XCAR (tem); | |
| 1311 else | |
| 1312 #if 1 | |
| 1313 /* This is The Way It Has Always Been. */ | |
| 1314 return Qnil; | |
| 1315 #else | |
| 1316 /* This is The Way Mly and Cltl2 say It Should Be. */ | |
| 1317 args_out_of_range (sequence, n); | |
| 1318 #endif | |
| 1319 } | |
| 1320 else if (STRINGP (sequence) || | |
| 1321 VECTORP (sequence) || | |
| 1322 BIT_VECTORP (sequence)) | |
| 1323 return Faref (sequence, n); | |
| 1324 #ifdef LOSING_BYTECODE | |
| 1325 else if (COMPILED_FUNCTIONP (sequence)) | |
| 1326 { | |
| 1327 EMACS_INT idx = XINT (n); | |
| 1328 if (idx < 0) | |
| 1329 { | |
| 1330 lose: | |
| 1331 args_out_of_range (sequence, n); | |
| 1332 } | |
| 1333 /* Utter perversity */ | |
| 1334 { | |
| 1335 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (sequence); | |
| 1336 switch (idx) | |
| 1337 { | |
| 1338 case COMPILED_ARGLIST: | |
| 1339 return compiled_function_arglist (f); | |
| 1340 case COMPILED_INSTRUCTIONS: | |
| 1341 return compiled_function_instructions (f); | |
| 1342 case COMPILED_CONSTANTS: | |
| 1343 return compiled_function_constants (f); | |
| 1344 case COMPILED_STACK_DEPTH: | |
| 1345 return compiled_function_stack_depth (f); | |
| 1346 case COMPILED_DOC_STRING: | |
| 1347 return compiled_function_documentation (f); | |
| 1348 case COMPILED_DOMAIN: | |
| 1349 return compiled_function_domain (f); | |
| 1350 case COMPILED_INTERACTIVE: | |
| 1351 if (f->flags.interactivep) | |
| 1352 return compiled_function_interactive (f); | |
| 1353 /* if we return nil, can't tell interactive with no args | |
| 1354 from noninteractive. */ | |
| 1355 goto lose; | |
| 1356 default: | |
| 1357 goto lose; | |
| 1358 } | |
| 1359 } | |
| 1360 } | |
| 1361 #endif /* LOSING_BYTECODE */ | |
| 1362 else | |
| 1363 { | |
| 1364 check_losing_bytecode ("elt", sequence); | |
| 1365 sequence = wrong_type_argument (Qsequencep, sequence); | |
| 1366 goto retry; | |
| 1367 } | |
| 1368 } | |
| 1369 | |
| 1370 DEFUN ("last", Flast, 1, 2, 0, /* | |
| 1371 Return the tail of list LIST, of length N (default 1). | |
| 1372 LIST may be a dotted list, but not a circular list. | |
| 1373 Optional argument N must be a non-negative integer. | |
| 1374 If N is zero, then the atom that terminates the list is returned. | |
| 1375 If N is greater than the length of LIST, then LIST itself is returned. | |
| 1376 */ | |
| 1377 (list, n)) | |
| 1378 { | |
| 1379 EMACS_INT int_n, count; | |
| 1380 Lisp_Object retval, tortoise, hare; | |
| 1381 | |
| 1382 CHECK_LIST (list); | |
| 1383 | |
| 1384 if (NILP (n)) | |
| 1385 int_n = 1; | |
| 1386 else | |
| 1387 { | |
| 1388 CHECK_NATNUM (n); | |
| 1389 int_n = XINT (n); | |
| 1390 } | |
| 1391 | |
| 1392 for (retval = tortoise = hare = list, count = 0; | |
| 1393 CONSP (hare); | |
| 1394 hare = XCDR (hare), | |
| 1395 (int_n-- <= 0 ? ((void) (retval = XCDR (retval))) : (void)0), | |
| 1396 count++) | |
| 1397 { | |
| 1398 if (count < CIRCULAR_LIST_SUSPICION_LENGTH) continue; | |
| 1399 | |
| 1400 if (count & 1) | |
| 1401 tortoise = XCDR (tortoise); | |
| 1402 if (EQ (hare, tortoise)) | |
| 1403 signal_circular_list_error (list); | |
| 1404 } | |
| 1405 | |
| 1406 return retval; | |
| 1407 } | |
| 1408 | |
| 1409 DEFUN ("nbutlast", Fnbutlast, 1, 2, 0, /* | |
| 1410 Modify LIST to remove the last N (default 1) elements. | |
| 1411 If LIST has N or fewer elements, nil is returned and LIST is unmodified. | |
| 1412 */ | |
| 1413 (list, n)) | |
| 1414 { | |
| 1415 EMACS_INT int_n; | |
| 1416 | |
| 1417 CHECK_LIST (list); | |
| 1418 | |
| 1419 if (NILP (n)) | |
| 1420 int_n = 1; | |
| 1421 else | |
| 1422 { | |
| 1423 CHECK_NATNUM (n); | |
| 1424 int_n = XINT (n); | |
| 1425 } | |
| 1426 | |
| 1427 { | |
| 1428 Lisp_Object last_cons = list; | |
| 1429 | |
| 1430 EXTERNAL_LIST_LOOP_1 (list) | |
| 1431 { | |
| 1432 if (int_n-- < 0) | |
| 1433 last_cons = XCDR (last_cons); | |
| 1434 } | |
| 1435 | |
| 1436 if (int_n >= 0) | |
| 1437 return Qnil; | |
| 1438 | |
| 1439 XCDR (last_cons) = Qnil; | |
| 1440 return list; | |
| 1441 } | |
| 1442 } | |
| 1443 | |
| 1444 DEFUN ("butlast", Fbutlast, 1, 2, 0, /* | |
| 1445 Return a copy of LIST with the last N (default 1) elements removed. | |
| 1446 If LIST has N or fewer elements, nil is returned. | |
| 1447 */ | |
| 1448 (list, n)) | |
| 1449 { | |
| 444 | 1450 EMACS_INT int_n; |
| 428 | 1451 |
| 1452 CHECK_LIST (list); | |
| 1453 | |
| 1454 if (NILP (n)) | |
| 1455 int_n = 1; | |
| 1456 else | |
| 1457 { | |
| 1458 CHECK_NATNUM (n); | |
| 1459 int_n = XINT (n); | |
| 1460 } | |
| 1461 | |
| 1462 { | |
| 1463 Lisp_Object retval = Qnil; | |
| 1464 Lisp_Object tail = list; | |
| 1465 | |
| 1466 EXTERNAL_LIST_LOOP_1 (list) | |
| 1467 { | |
| 1468 if (--int_n < 0) | |
| 1469 { | |
| 1470 retval = Fcons (XCAR (tail), retval); | |
| 1471 tail = XCDR (tail); | |
| 1472 } | |
| 1473 } | |
| 1474 | |
| 1475 return Fnreverse (retval); | |
| 1476 } | |
| 1477 } | |
| 1478 | |
| 1479 DEFUN ("member", Fmember, 2, 2, 0, /* | |
| 1480 Return non-nil if ELT is an element of LIST. Comparison done with `equal'. | |
| 1481 The value is actually the tail of LIST whose car is ELT. | |
| 1482 */ | |
| 1483 (elt, list)) | |
| 1484 { | |
| 1485 EXTERNAL_LIST_LOOP_3 (list_elt, list, tail) | |
| 1486 { | |
| 1487 if (internal_equal (elt, list_elt, 0)) | |
| 1488 return tail; | |
| 1489 } | |
| 1490 return Qnil; | |
| 1491 } | |
| 1492 | |
| 1493 DEFUN ("old-member", Fold_member, 2, 2, 0, /* | |
| 1494 Return non-nil if ELT is an element of LIST. Comparison done with `old-equal'. | |
| 1495 The value is actually the tail of LIST whose car is ELT. | |
| 1496 This function is provided only for byte-code compatibility with v19. | |
| 1497 Do not use it. | |
| 1498 */ | |
| 1499 (elt, list)) | |
| 1500 { | |
| 1501 EXTERNAL_LIST_LOOP_3 (list_elt, list, tail) | |
| 1502 { | |
| 1503 if (internal_old_equal (elt, list_elt, 0)) | |
| 1504 return tail; | |
| 1505 } | |
| 1506 return Qnil; | |
| 1507 } | |
| 1508 | |
| 1509 DEFUN ("memq", Fmemq, 2, 2, 0, /* | |
| 1510 Return non-nil if ELT is an element of LIST. Comparison done with `eq'. | |
| 1511 The value is actually the tail of LIST whose car is ELT. | |
| 1512 */ | |
| 1513 (elt, list)) | |
| 1514 { | |
| 1515 EXTERNAL_LIST_LOOP_3 (list_elt, list, tail) | |
| 1516 { | |
| 1517 if (EQ_WITH_EBOLA_NOTICE (elt, list_elt)) | |
| 1518 return tail; | |
| 1519 } | |
| 1520 return Qnil; | |
| 1521 } | |
| 1522 | |
| 1523 DEFUN ("old-memq", Fold_memq, 2, 2, 0, /* | |
| 1524 Return non-nil if ELT is an element of LIST. Comparison done with `old-eq'. | |
| 1525 The value is actually the tail of LIST whose car is ELT. | |
| 1526 This function is provided only for byte-code compatibility with v19. | |
| 1527 Do not use it. | |
| 1528 */ | |
| 1529 (elt, list)) | |
| 1530 { | |
| 1531 EXTERNAL_LIST_LOOP_3 (list_elt, list, tail) | |
| 1532 { | |
| 1533 if (HACKEQ_UNSAFE (elt, list_elt)) | |
| 1534 return tail; | |
| 1535 } | |
| 1536 return Qnil; | |
| 1537 } | |
| 1538 | |
| 1539 Lisp_Object | |
| 1540 memq_no_quit (Lisp_Object elt, Lisp_Object list) | |
| 1541 { | |
| 1542 LIST_LOOP_3 (list_elt, list, tail) | |
| 1543 { | |
| 1544 if (EQ_WITH_EBOLA_NOTICE (elt, list_elt)) | |
| 1545 return tail; | |
| 1546 } | |
| 1547 return Qnil; | |
| 1548 } | |
| 1549 | |
| 1550 DEFUN ("assoc", Fassoc, 2, 2, 0, /* | |
| 444 | 1551 Return non-nil if KEY is `equal' to the car of an element of ALIST. |
| 1552 The value is actually the element of ALIST whose car equals KEY. | |
| 428 | 1553 */ |
| 444 | 1554 (key, alist)) |
| 428 | 1555 { |
| 1556 /* This function can GC. */ | |
| 444 | 1557 EXTERNAL_ALIST_LOOP_4 (elt, elt_car, elt_cdr, alist) |
| 428 | 1558 { |
| 1559 if (internal_equal (key, elt_car, 0)) | |
| 1560 return elt; | |
| 1561 } | |
| 1562 return Qnil; | |
| 1563 } | |
| 1564 | |
| 1565 DEFUN ("old-assoc", Fold_assoc, 2, 2, 0, /* | |
| 444 | 1566 Return non-nil if KEY is `old-equal' to the car of an element of ALIST. |
| 1567 The value is actually the element of ALIST whose car equals KEY. | |
| 428 | 1568 */ |
| 444 | 1569 (key, alist)) |
| 428 | 1570 { |
| 1571 /* This function can GC. */ | |
| 444 | 1572 EXTERNAL_ALIST_LOOP_4 (elt, elt_car, elt_cdr, alist) |
| 428 | 1573 { |
| 1574 if (internal_old_equal (key, elt_car, 0)) | |
| 1575 return elt; | |
| 1576 } | |
| 1577 return Qnil; | |
| 1578 } | |
| 1579 | |
| 1580 Lisp_Object | |
| 444 | 1581 assoc_no_quit (Lisp_Object key, Lisp_Object alist) |
| 428 | 1582 { |
| 1583 int speccount = specpdl_depth (); | |
| 1584 specbind (Qinhibit_quit, Qt); | |
| 771 | 1585 return unbind_to_1 (speccount, Fassoc (key, alist)); |
| 428 | 1586 } |
| 1587 | |
| 1588 DEFUN ("assq", Fassq, 2, 2, 0, /* | |
| 444 | 1589 Return non-nil if KEY is `eq' to the car of an element of ALIST. |
| 1590 The value is actually the element of ALIST whose car is KEY. | |
| 1591 Elements of ALIST that are not conses are ignored. | |
| 428 | 1592 */ |
| 444 | 1593 (key, alist)) |
| 428 | 1594 { |
| 444 | 1595 EXTERNAL_ALIST_LOOP_4 (elt, elt_car, elt_cdr, alist) |
| 428 | 1596 { |
| 1597 if (EQ_WITH_EBOLA_NOTICE (key, elt_car)) | |
| 1598 return elt; | |
| 1599 } | |
| 1600 return Qnil; | |
| 1601 } | |
| 1602 | |
| 1603 DEFUN ("old-assq", Fold_assq, 2, 2, 0, /* | |
| 444 | 1604 Return non-nil if KEY is `old-eq' to the car of an element of ALIST. |
| 1605 The value is actually the element of ALIST whose car is KEY. | |
| 1606 Elements of ALIST that are not conses are ignored. | |
| 428 | 1607 This function is provided only for byte-code compatibility with v19. |
| 1608 Do not use it. | |
| 1609 */ | |
| 444 | 1610 (key, alist)) |
| 428 | 1611 { |
| 444 | 1612 EXTERNAL_ALIST_LOOP_4 (elt, elt_car, elt_cdr, alist) |
| 428 | 1613 { |
| 1614 if (HACKEQ_UNSAFE (key, elt_car)) | |
| 1615 return elt; | |
| 1616 } | |
| 1617 return Qnil; | |
| 1618 } | |
| 1619 | |
| 1620 /* Like Fassq but never report an error and do not allow quits. | |
| 1621 Use only on lists known never to be circular. */ | |
| 1622 | |
| 1623 Lisp_Object | |
| 444 | 1624 assq_no_quit (Lisp_Object key, Lisp_Object alist) |
| 428 | 1625 { |
| 1626 /* This cannot GC. */ | |
| 444 | 1627 LIST_LOOP_2 (elt, alist) |
| 428 | 1628 { |
| 1629 Lisp_Object elt_car = XCAR (elt); | |
| 1630 if (EQ_WITH_EBOLA_NOTICE (key, elt_car)) | |
| 1631 return elt; | |
| 1632 } | |
| 1633 return Qnil; | |
| 1634 } | |
| 1635 | |
| 1636 DEFUN ("rassoc", Frassoc, 2, 2, 0, /* | |
| 444 | 1637 Return non-nil if VALUE is `equal' to the cdr of an element of ALIST. |
| 1638 The value is actually the element of ALIST whose cdr equals VALUE. | |
| 428 | 1639 */ |
| 444 | 1640 (value, alist)) |
| 428 | 1641 { |
| 444 | 1642 EXTERNAL_ALIST_LOOP_4 (elt, elt_car, elt_cdr, alist) |
| 428 | 1643 { |
| 444 | 1644 if (internal_equal (value, elt_cdr, 0)) |
| 428 | 1645 return elt; |
| 1646 } | |
| 1647 return Qnil; | |
| 1648 } | |
| 1649 | |
| 1650 DEFUN ("old-rassoc", Fold_rassoc, 2, 2, 0, /* | |
| 444 | 1651 Return non-nil if VALUE is `old-equal' to the cdr of an element of ALIST. |
| 1652 The value is actually the element of ALIST whose cdr equals VALUE. | |
| 428 | 1653 */ |
| 444 | 1654 (value, alist)) |
| 428 | 1655 { |
| 444 | 1656 EXTERNAL_ALIST_LOOP_4 (elt, elt_car, elt_cdr, alist) |
| 428 | 1657 { |
| 444 | 1658 if (internal_old_equal (value, elt_cdr, 0)) |
| 428 | 1659 return elt; |
| 1660 } | |
| 1661 return Qnil; | |
| 1662 } | |
| 1663 | |
| 1664 DEFUN ("rassq", Frassq, 2, 2, 0, /* | |
| 444 | 1665 Return non-nil if VALUE is `eq' to the cdr of an element of ALIST. |
| 1666 The value is actually the element of ALIST whose cdr is VALUE. | |
| 428 | 1667 */ |
| 444 | 1668 (value, alist)) |
| 428 | 1669 { |
| 444 | 1670 EXTERNAL_ALIST_LOOP_4 (elt, elt_car, elt_cdr, alist) |
| 428 | 1671 { |
| 444 | 1672 if (EQ_WITH_EBOLA_NOTICE (value, elt_cdr)) |
| 428 | 1673 return elt; |
| 1674 } | |
| 1675 return Qnil; | |
| 1676 } | |
| 1677 | |
| 1678 DEFUN ("old-rassq", Fold_rassq, 2, 2, 0, /* | |
| 444 | 1679 Return non-nil if VALUE is `old-eq' to the cdr of an element of ALIST. |
| 1680 The value is actually the element of ALIST whose cdr is VALUE. | |
| 428 | 1681 */ |
| 444 | 1682 (value, alist)) |
| 428 | 1683 { |
| 444 | 1684 EXTERNAL_ALIST_LOOP_4 (elt, elt_car, elt_cdr, alist) |
| 428 | 1685 { |
| 444 | 1686 if (HACKEQ_UNSAFE (value, elt_cdr)) |
| 428 | 1687 return elt; |
| 1688 } | |
| 1689 return Qnil; | |
| 1690 } | |
| 1691 | |
| 444 | 1692 /* Like Frassq, but caller must ensure that ALIST is properly |
| 428 | 1693 nil-terminated and ebola-free. */ |
| 1694 Lisp_Object | |
| 444 | 1695 rassq_no_quit (Lisp_Object value, Lisp_Object alist) |
| 428 | 1696 { |
| 444 | 1697 LIST_LOOP_2 (elt, alist) |
| 428 | 1698 { |
| 1699 Lisp_Object elt_cdr = XCDR (elt); | |
| 444 | 1700 if (EQ_WITH_EBOLA_NOTICE (value, elt_cdr)) |
| 428 | 1701 return elt; |
| 1702 } | |
| 1703 return Qnil; | |
| 1704 } | |
| 1705 | |
| 1706 | |
| 1707 DEFUN ("delete", Fdelete, 2, 2, 0, /* | |
| 1708 Delete by side effect any occurrences of ELT as a member of LIST. | |
| 1709 The modified LIST is returned. Comparison is done with `equal'. | |
| 1710 If the first member of LIST is ELT, there is no way to remove it by side | |
| 1711 effect; therefore, write `(setq foo (delete element foo))' to be sure | |
| 1712 of changing the value of `foo'. | |
| 1713 Also see: `remove'. | |
| 1714 */ | |
| 1715 (elt, list)) | |
| 1716 { | |
| 1717 EXTERNAL_LIST_LOOP_DELETE_IF (list_elt, list, | |
| 1718 (internal_equal (elt, list_elt, 0))); | |
| 1719 return list; | |
| 1720 } | |
| 1721 | |
| 1722 DEFUN ("old-delete", Fold_delete, 2, 2, 0, /* | |
| 1723 Delete by side effect any occurrences of ELT as a member of LIST. | |
| 1724 The modified LIST is returned. Comparison is done with `old-equal'. | |
| 1725 If the first member of LIST is ELT, there is no way to remove it by side | |
| 1726 effect; therefore, write `(setq foo (old-delete element foo))' to be sure | |
| 1727 of changing the value of `foo'. | |
| 1728 */ | |
| 1729 (elt, list)) | |
| 1730 { | |
| 1731 EXTERNAL_LIST_LOOP_DELETE_IF (list_elt, list, | |
| 1732 (internal_old_equal (elt, list_elt, 0))); | |
| 1733 return list; | |
| 1734 } | |
| 1735 | |
| 1736 DEFUN ("delq", Fdelq, 2, 2, 0, /* | |
| 1737 Delete by side effect any occurrences of ELT as a member of LIST. | |
| 1738 The modified LIST is returned. Comparison is done with `eq'. | |
| 1739 If the first member of LIST is ELT, there is no way to remove it by side | |
| 1740 effect; therefore, write `(setq foo (delq element foo))' to be sure of | |
| 1741 changing the value of `foo'. | |
| 1742 */ | |
| 1743 (elt, list)) | |
| 1744 { | |
| 1745 EXTERNAL_LIST_LOOP_DELETE_IF (list_elt, list, | |
| 1746 (EQ_WITH_EBOLA_NOTICE (elt, list_elt))); | |
| 1747 return list; | |
| 1748 } | |
| 1749 | |
| 1750 DEFUN ("old-delq", Fold_delq, 2, 2, 0, /* | |
| 1751 Delete by side effect any occurrences of ELT as a member of LIST. | |
| 1752 The modified LIST is returned. Comparison is done with `old-eq'. | |
| 1753 If the first member of LIST is ELT, there is no way to remove it by side | |
| 1754 effect; therefore, write `(setq foo (old-delq element foo))' to be sure of | |
| 1755 changing the value of `foo'. | |
| 1756 */ | |
| 1757 (elt, list)) | |
| 1758 { | |
| 1759 EXTERNAL_LIST_LOOP_DELETE_IF (list_elt, list, | |
| 1760 (HACKEQ_UNSAFE (elt, list_elt))); | |
| 1761 return list; | |
| 1762 } | |
| 1763 | |
| 1764 /* Like Fdelq, but caller must ensure that LIST is properly | |
| 1765 nil-terminated and ebola-free. */ | |
| 1766 | |
| 1767 Lisp_Object | |
| 1768 delq_no_quit (Lisp_Object elt, Lisp_Object list) | |
| 1769 { | |
| 1770 LIST_LOOP_DELETE_IF (list_elt, list, | |
| 1771 (EQ_WITH_EBOLA_NOTICE (elt, list_elt))); | |
| 1772 return list; | |
| 1773 } | |
| 1774 | |
| 1775 /* Be VERY careful with this. This is like delq_no_quit() but | |
| 1776 also calls free_cons() on the removed conses. You must be SURE | |
| 1777 that no pointers to the freed conses remain around (e.g. | |
| 1778 someone else is pointing to part of the list). This function | |
| 1779 is useful on internal lists that are used frequently and where | |
| 1780 the actual list doesn't escape beyond known code bounds. */ | |
| 1781 | |
| 1782 Lisp_Object | |
| 1783 delq_no_quit_and_free_cons (Lisp_Object elt, Lisp_Object list) | |
| 1784 { | |
| 1785 REGISTER Lisp_Object tail = list; | |
| 1786 REGISTER Lisp_Object prev = Qnil; | |
| 1787 | |
| 1788 while (!NILP (tail)) | |
| 1789 { | |
| 1790 REGISTER Lisp_Object tem = XCAR (tail); | |
| 1791 if (EQ (elt, tem)) | |
| 1792 { | |
| 1793 Lisp_Object cons_to_free = tail; | |
| 1794 if (NILP (prev)) | |
| 1795 list = XCDR (tail); | |
| 1796 else | |
| 1797 XCDR (prev) = XCDR (tail); | |
| 1798 tail = XCDR (tail); | |
| 853 | 1799 free_cons (cons_to_free); |
| 428 | 1800 } |
| 1801 else | |
| 1802 { | |
| 1803 prev = tail; | |
| 1804 tail = XCDR (tail); | |
| 1805 } | |
| 1806 } | |
| 1807 return list; | |
| 1808 } | |
| 1809 | |
| 1810 DEFUN ("remassoc", Fremassoc, 2, 2, 0, /* | |
| 444 | 1811 Delete by side effect any elements of ALIST whose car is `equal' to KEY. |
| 1812 The modified ALIST is returned. If the first member of ALIST has a car | |
| 428 | 1813 that is `equal' to KEY, there is no way to remove it by side effect; |
| 1814 therefore, write `(setq foo (remassoc key foo))' to be sure of changing | |
| 1815 the value of `foo'. | |
| 1816 */ | |
| 444 | 1817 (key, alist)) |
| 428 | 1818 { |
| 444 | 1819 EXTERNAL_LIST_LOOP_DELETE_IF (elt, alist, |
| 428 | 1820 (CONSP (elt) && |
| 1821 internal_equal (key, XCAR (elt), 0))); | |
| 444 | 1822 return alist; |
| 428 | 1823 } |
| 1824 | |
| 1825 Lisp_Object | |
| 444 | 1826 remassoc_no_quit (Lisp_Object key, Lisp_Object alist) |
| 428 | 1827 { |
| 1828 int speccount = specpdl_depth (); | |
| 1829 specbind (Qinhibit_quit, Qt); | |
| 771 | 1830 return unbind_to_1 (speccount, Fremassoc (key, alist)); |
| 428 | 1831 } |
| 1832 | |
| 1833 DEFUN ("remassq", Fremassq, 2, 2, 0, /* | |
| 444 | 1834 Delete by side effect any elements of ALIST whose car is `eq' to KEY. |
| 1835 The modified ALIST is returned. If the first member of ALIST has a car | |
| 428 | 1836 that is `eq' to KEY, there is no way to remove it by side effect; |
| 1837 therefore, write `(setq foo (remassq key foo))' to be sure of changing | |
| 1838 the value of `foo'. | |
| 1839 */ | |
| 444 | 1840 (key, alist)) |
| 428 | 1841 { |
| 444 | 1842 EXTERNAL_LIST_LOOP_DELETE_IF (elt, alist, |
| 428 | 1843 (CONSP (elt) && |
| 1844 EQ_WITH_EBOLA_NOTICE (key, XCAR (elt)))); | |
| 444 | 1845 return alist; |
| 428 | 1846 } |
| 1847 | |
| 1848 /* no quit, no errors; be careful */ | |
| 1849 | |
| 1850 Lisp_Object | |
| 444 | 1851 remassq_no_quit (Lisp_Object key, Lisp_Object alist) |
| 428 | 1852 { |
| 444 | 1853 LIST_LOOP_DELETE_IF (elt, alist, |
| 428 | 1854 (CONSP (elt) && |
| 1855 EQ_WITH_EBOLA_NOTICE (key, XCAR (elt)))); | |
| 444 | 1856 return alist; |
| 428 | 1857 } |
| 1858 | |
| 1859 DEFUN ("remrassoc", Fremrassoc, 2, 2, 0, /* | |
| 444 | 1860 Delete by side effect any elements of ALIST whose cdr is `equal' to VALUE. |
| 1861 The modified ALIST is returned. If the first member of ALIST has a car | |
| 428 | 1862 that is `equal' to VALUE, there is no way to remove it by side effect; |
| 1863 therefore, write `(setq foo (remrassoc value foo))' to be sure of changing | |
| 1864 the value of `foo'. | |
| 1865 */ | |
| 444 | 1866 (value, alist)) |
| 428 | 1867 { |
| 444 | 1868 EXTERNAL_LIST_LOOP_DELETE_IF (elt, alist, |
| 428 | 1869 (CONSP (elt) && |
| 1870 internal_equal (value, XCDR (elt), 0))); | |
| 444 | 1871 return alist; |
| 428 | 1872 } |
| 1873 | |
| 1874 DEFUN ("remrassq", Fremrassq, 2, 2, 0, /* | |
| 444 | 1875 Delete by side effect any elements of ALIST whose cdr is `eq' to VALUE. |
| 1876 The modified ALIST is returned. If the first member of ALIST has a car | |
| 428 | 1877 that is `eq' to VALUE, there is no way to remove it by side effect; |
| 1878 therefore, write `(setq foo (remrassq value foo))' to be sure of changing | |
| 1879 the value of `foo'. | |
| 1880 */ | |
| 444 | 1881 (value, alist)) |
| 428 | 1882 { |
| 444 | 1883 EXTERNAL_LIST_LOOP_DELETE_IF (elt, alist, |
| 428 | 1884 (CONSP (elt) && |
| 1885 EQ_WITH_EBOLA_NOTICE (value, XCDR (elt)))); | |
| 444 | 1886 return alist; |
| 428 | 1887 } |
| 1888 | |
| 1889 /* Like Fremrassq, fast and unsafe; be careful */ | |
| 1890 Lisp_Object | |
| 444 | 1891 remrassq_no_quit (Lisp_Object value, Lisp_Object alist) |
| 428 | 1892 { |
| 444 | 1893 LIST_LOOP_DELETE_IF (elt, alist, |
| 428 | 1894 (CONSP (elt) && |
| 1895 EQ_WITH_EBOLA_NOTICE (value, XCDR (elt)))); | |
| 444 | 1896 return alist; |
| 428 | 1897 } |
| 1898 | |
| 1899 DEFUN ("nreverse", Fnreverse, 1, 1, 0, /* | |
| 1900 Reverse LIST by destructively modifying cdr pointers. | |
| 1901 Return the beginning of the reversed list. | |
| 1902 Also see: `reverse'. | |
| 1903 */ | |
| 1904 (list)) | |
| 1905 { | |
| 1906 struct gcpro gcpro1, gcpro2; | |
| 1849 | 1907 Lisp_Object prev = Qnil; |
| 1908 Lisp_Object tail = list; | |
| 428 | 1909 |
| 1910 /* We gcpro our args; see `nconc' */ | |
| 1911 GCPRO2 (prev, tail); | |
| 1912 while (!NILP (tail)) | |
| 1913 { | |
| 1914 REGISTER Lisp_Object next; | |
| 1915 CONCHECK_CONS (tail); | |
| 1916 next = XCDR (tail); | |
| 1917 XCDR (tail) = prev; | |
| 1918 prev = tail; | |
| 1919 tail = next; | |
| 1920 } | |
| 1921 UNGCPRO; | |
| 1922 return prev; | |
| 1923 } | |
| 1924 | |
| 1925 DEFUN ("reverse", Freverse, 1, 1, 0, /* | |
| 1926 Reverse LIST, copying. Return the beginning of the reversed list. | |
| 1927 See also the function `nreverse', which is used more often. | |
| 1928 */ | |
| 1929 (list)) | |
| 1930 { | |
| 1931 Lisp_Object reversed_list = Qnil; | |
| 1932 EXTERNAL_LIST_LOOP_2 (elt, list) | |
| 1933 { | |
| 1934 reversed_list = Fcons (elt, reversed_list); | |
| 1935 } | |
| 1936 return reversed_list; | |
| 1937 } | |
| 1938 | |
| 1939 static Lisp_Object list_merge (Lisp_Object org_l1, Lisp_Object org_l2, | |
| 1940 Lisp_Object lisp_arg, | |
| 1941 int (*pred_fn) (Lisp_Object, Lisp_Object, | |
| 1942 Lisp_Object lisp_arg)); | |
| 1943 | |
| 872 | 1944 /* The sort function should return > 0 if OBJ1 < OBJ2, < 0 otherwise. |
| 1945 NOTE: This is backwards from the way qsort() works. */ | |
| 1946 | |
| 428 | 1947 Lisp_Object |
| 1948 list_sort (Lisp_Object list, | |
| 1949 Lisp_Object lisp_arg, | |
| 872 | 1950 int (*pred_fn) (Lisp_Object obj1, Lisp_Object obj2, |
| 428 | 1951 Lisp_Object lisp_arg)) |
| 1952 { | |
| 1953 struct gcpro gcpro1, gcpro2, gcpro3; | |
| 1954 Lisp_Object back, tem; | |
| 1955 Lisp_Object front = list; | |
| 1956 Lisp_Object len = Flength (list); | |
| 444 | 1957 |
| 1958 if (XINT (len) < 2) | |
| 428 | 1959 return list; |
| 1960 | |
| 444 | 1961 len = make_int (XINT (len) / 2 - 1); |
| 428 | 1962 tem = Fnthcdr (len, list); |
| 1963 back = Fcdr (tem); | |
| 1964 Fsetcdr (tem, Qnil); | |
| 1965 | |
| 1966 GCPRO3 (front, back, lisp_arg); | |
| 1967 front = list_sort (front, lisp_arg, pred_fn); | |
| 1968 back = list_sort (back, lisp_arg, pred_fn); | |
| 1969 UNGCPRO; | |
| 1970 return list_merge (front, back, lisp_arg, pred_fn); | |
| 1971 } | |
| 1972 | |
| 1973 | |
| 1974 static int | |
| 1975 merge_pred_function (Lisp_Object obj1, Lisp_Object obj2, | |
| 1976 Lisp_Object pred) | |
| 1977 { | |
| 1978 Lisp_Object tmp; | |
| 1979 | |
| 1980 /* prevents the GC from happening in call2 */ | |
| 853 | 1981 /* Emacs' GC doesn't actually relocate pointers, so this probably |
| 1982 isn't strictly necessary */ | |
| 771 | 1983 int speccount = begin_gc_forbidden (); |
| 428 | 1984 tmp = call2 (pred, obj1, obj2); |
| 771 | 1985 unbind_to (speccount); |
| 428 | 1986 |
| 1987 if (NILP (tmp)) | |
| 1988 return -1; | |
| 1989 else | |
| 1990 return 1; | |
| 1991 } | |
| 1992 | |
| 1993 DEFUN ("sort", Fsort, 2, 2, 0, /* | |
| 1994 Sort LIST, stably, comparing elements using PREDICATE. | |
| 1995 Returns the sorted list. LIST is modified by side effects. | |
| 1996 PREDICATE is called with two elements of LIST, and should return T | |
| 1997 if the first element is "less" than the second. | |
| 1998 */ | |
| 444 | 1999 (list, predicate)) |
| 428 | 2000 { |
| 444 | 2001 return list_sort (list, predicate, merge_pred_function); |
| 428 | 2002 } |
| 2003 | |
| 2004 Lisp_Object | |
| 2005 merge (Lisp_Object org_l1, Lisp_Object org_l2, | |
| 2006 Lisp_Object pred) | |
| 2007 { | |
| 2008 return list_merge (org_l1, org_l2, pred, merge_pred_function); | |
| 2009 } | |
| 2010 | |
| 2011 | |
| 2012 static Lisp_Object | |
| 2013 list_merge (Lisp_Object org_l1, Lisp_Object org_l2, | |
| 2014 Lisp_Object lisp_arg, | |
| 2015 int (*pred_fn) (Lisp_Object, Lisp_Object, Lisp_Object lisp_arg)) | |
| 2016 { | |
| 2017 Lisp_Object value; | |
| 2018 Lisp_Object tail; | |
| 2019 Lisp_Object tem; | |
| 2020 Lisp_Object l1, l2; | |
| 2021 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
| 2022 | |
| 2023 l1 = org_l1; | |
| 2024 l2 = org_l2; | |
| 2025 tail = Qnil; | |
| 2026 value = Qnil; | |
| 2027 | |
| 2028 /* It is sufficient to protect org_l1 and org_l2. | |
| 2029 When l1 and l2 are updated, we copy the new values | |
| 2030 back into the org_ vars. */ | |
| 2031 | |
| 2032 GCPRO4 (org_l1, org_l2, lisp_arg, value); | |
| 2033 | |
| 2034 while (1) | |
| 2035 { | |
| 2036 if (NILP (l1)) | |
| 2037 { | |
| 2038 UNGCPRO; | |
| 2039 if (NILP (tail)) | |
| 2040 return l2; | |
| 2041 Fsetcdr (tail, l2); | |
| 2042 return value; | |
| 2043 } | |
| 2044 if (NILP (l2)) | |
| 2045 { | |
| 2046 UNGCPRO; | |
| 2047 if (NILP (tail)) | |
| 2048 return l1; | |
| 2049 Fsetcdr (tail, l1); | |
| 2050 return value; | |
| 2051 } | |
| 2052 | |
| 2053 if (((*pred_fn) (Fcar (l2), Fcar (l1), lisp_arg)) < 0) | |
| 2054 { | |
| 2055 tem = l1; | |
| 2056 l1 = Fcdr (l1); | |
| 2057 org_l1 = l1; | |
| 2058 } | |
| 2059 else | |
| 2060 { | |
| 2061 tem = l2; | |
| 2062 l2 = Fcdr (l2); | |
| 2063 org_l2 = l2; | |
| 2064 } | |
| 2065 if (NILP (tail)) | |
| 2066 value = tem; | |
| 2067 else | |
| 2068 Fsetcdr (tail, tem); | |
| 2069 tail = tem; | |
| 2070 } | |
| 2071 } | |
| 2072 | |
| 2073 | |
| 2074 /************************************************************************/ | |
| 2075 /* property-list functions */ | |
| 2076 /************************************************************************/ | |
| 2077 | |
| 2078 /* For properties of text, we need to do order-insensitive comparison of | |
| 2079 plists. That is, we need to compare two plists such that they are the | |
| 2080 same if they have the same set of keys, and equivalent values. | |
| 2081 So (a 1 b 2) would be equal to (b 2 a 1). | |
| 2082 | |
| 2083 NIL_MEANS_NOT_PRESENT is as in `plists-eq' etc. | |
| 2084 LAXP means use `equal' for comparisons. | |
| 2085 */ | |
| 2086 int | |
| 2087 plists_differ (Lisp_Object a, Lisp_Object b, int nil_means_not_present, | |
|
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|
2088 int laxp, int depth, int foldcase) |
| 428 | 2089 { |
| 438 | 2090 int eqp = (depth == -1); /* -1 as depth means use eq, not equal. */ |
| 428 | 2091 int la, lb, m, i, fill; |
| 2092 Lisp_Object *keys, *vals; | |
|
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changeset
|
2093 Boolbyte *flags; |
| 428 | 2094 Lisp_Object rest; |
| 2095 | |
| 2096 if (NILP (a) && NILP (b)) | |
| 2097 return 0; | |
| 2098 | |
| 2099 Fcheck_valid_plist (a); | |
| 2100 Fcheck_valid_plist (b); | |
| 2101 | |
| 2102 la = XINT (Flength (a)); | |
| 2103 lb = XINT (Flength (b)); | |
| 2104 m = (la > lb ? la : lb); | |
| 2105 fill = 0; | |
| 2106 keys = alloca_array (Lisp_Object, m); | |
| 2107 vals = alloca_array (Lisp_Object, m); | |
|
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Ben Wing <ben@xemacs.org>
parents:
4966
diff
changeset
|
2108 flags = alloca_array (Boolbyte, m); |
| 428 | 2109 |
| 2110 /* First extract the pairs from A. */ | |
| 2111 for (rest = a; !NILP (rest); rest = XCDR (XCDR (rest))) | |
| 2112 { | |
| 2113 Lisp_Object k = XCAR (rest); | |
| 2114 Lisp_Object v = XCAR (XCDR (rest)); | |
| 2115 /* Maybe be Ebolified. */ | |
| 2116 if (nil_means_not_present && NILP (v)) continue; | |
| 2117 keys [fill] = k; | |
| 2118 vals [fill] = v; | |
| 2119 flags[fill] = 0; | |
| 2120 fill++; | |
| 2121 } | |
| 2122 /* Now iterate over B, and stop if we find something that's not in A, | |
| 2123 or that doesn't match. As we match, mark them. */ | |
| 2124 for (rest = b; !NILP (rest); rest = XCDR (XCDR (rest))) | |
| 2125 { | |
| 2126 Lisp_Object k = XCAR (rest); | |
| 2127 Lisp_Object v = XCAR (XCDR (rest)); | |
| 2128 /* Maybe be Ebolified. */ | |
| 2129 if (nil_means_not_present && NILP (v)) continue; | |
| 2130 for (i = 0; i < fill; i++) | |
| 2131 { | |
|
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4797
diff
changeset
|
2132 if (!laxp ? EQ (k, keys [i]) : |
|
6ef8256a020a
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parents:
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diff
changeset
|
2133 internal_equal_0 (k, keys [i], depth, foldcase)) |
| 428 | 2134 { |
| 434 | 2135 if (eqp |
| 2136 /* We narrowly escaped being Ebolified here. */ | |
| 2137 ? !EQ_WITH_EBOLA_NOTICE (v, vals [i]) | |
|
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diff
changeset
|
2138 : !internal_equal_0 (v, vals [i], depth, foldcase)) |
| 428 | 2139 /* a property in B has a different value than in A */ |
| 2140 goto MISMATCH; | |
| 2141 flags [i] = 1; | |
| 2142 break; | |
| 2143 } | |
| 2144 } | |
| 2145 if (i == fill) | |
| 2146 /* there are some properties in B that are not in A */ | |
| 2147 goto MISMATCH; | |
| 2148 } | |
| 2149 /* Now check to see that all the properties in A were also in B */ | |
| 2150 for (i = 0; i < fill; i++) | |
| 2151 if (flags [i] == 0) | |
| 2152 goto MISMATCH; | |
| 2153 | |
| 2154 /* Ok. */ | |
| 2155 return 0; | |
| 2156 | |
| 2157 MISMATCH: | |
| 2158 return 1; | |
| 2159 } | |
| 2160 | |
| 2161 DEFUN ("plists-eq", Fplists_eq, 2, 3, 0, /* | |
| 2162 Return non-nil if property lists A and B are `eq'. | |
| 2163 A property list is an alternating list of keywords and values. | |
| 2164 This function does order-insensitive comparisons of the property lists: | |
| 2165 For example, the property lists '(a 1 b 2) and '(b 2 a 1) are equal. | |
| 2166 Comparison between values is done using `eq'. See also `plists-equal'. | |
| 2167 If optional arg NIL-MEANS-NOT-PRESENT is non-nil, then a property with | |
| 2168 a nil value is ignored. This feature is a virus that has infected | |
| 2169 old Lisp implementations, but should not be used except for backward | |
| 2170 compatibility. | |
| 2171 */ | |
| 2172 (a, b, nil_means_not_present)) | |
| 2173 { | |
|
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diff
changeset
|
2174 return (plists_differ (a, b, !NILP (nil_means_not_present), 0, -1, 0) |
| 428 | 2175 ? Qnil : Qt); |
| 2176 } | |
| 2177 | |
| 2178 DEFUN ("plists-equal", Fplists_equal, 2, 3, 0, /* | |
| 2179 Return non-nil if property lists A and B are `equal'. | |
| 2180 A property list is an alternating list of keywords and values. This | |
| 2181 function does order-insensitive comparisons of the property lists: For | |
| 2182 example, the property lists '(a 1 b 2) and '(b 2 a 1) are equal. | |
| 2183 Comparison between values is done using `equal'. See also `plists-eq'. | |
| 2184 If optional arg NIL-MEANS-NOT-PRESENT is non-nil, then a property with | |
| 2185 a nil value is ignored. This feature is a virus that has infected | |
| 2186 old Lisp implementations, but should not be used except for backward | |
| 2187 compatibility. | |
| 2188 */ | |
| 2189 (a, b, nil_means_not_present)) | |
| 2190 { | |
|
4906
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parents:
4797
diff
changeset
|
2191 return (plists_differ (a, b, !NILP (nil_means_not_present), 0, 1, 0) |
| 428 | 2192 ? Qnil : Qt); |
| 2193 } | |
| 2194 | |
| 2195 | |
| 2196 DEFUN ("lax-plists-eq", Flax_plists_eq, 2, 3, 0, /* | |
| 2197 Return non-nil if lax property lists A and B are `eq'. | |
| 2198 A property list is an alternating list of keywords and values. | |
| 2199 This function does order-insensitive comparisons of the property lists: | |
| 2200 For example, the property lists '(a 1 b 2) and '(b 2 a 1) are equal. | |
| 2201 Comparison between values is done using `eq'. See also `plists-equal'. | |
| 2202 A lax property list is like a regular one except that comparisons between | |
| 2203 keywords is done using `equal' instead of `eq'. | |
| 2204 If optional arg NIL-MEANS-NOT-PRESENT is non-nil, then a property with | |
| 2205 a nil value is ignored. This feature is a virus that has infected | |
| 2206 old Lisp implementations, but should not be used except for backward | |
| 2207 compatibility. | |
| 2208 */ | |
| 2209 (a, b, nil_means_not_present)) | |
| 2210 { | |
|
4906
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implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2211 return (plists_differ (a, b, !NILP (nil_means_not_present), 1, -1, 0) |
| 428 | 2212 ? Qnil : Qt); |
| 2213 } | |
| 2214 | |
| 2215 DEFUN ("lax-plists-equal", Flax_plists_equal, 2, 3, 0, /* | |
| 2216 Return non-nil if lax property lists A and B are `equal'. | |
| 2217 A property list is an alternating list of keywords and values. This | |
| 2218 function does order-insensitive comparisons of the property lists: For | |
| 2219 example, the property lists '(a 1 b 2) and '(b 2 a 1) are equal. | |
| 2220 Comparison between values is done using `equal'. See also `plists-eq'. | |
| 2221 A lax property list is like a regular one except that comparisons between | |
| 2222 keywords is done using `equal' instead of `eq'. | |
| 2223 If optional arg NIL-MEANS-NOT-PRESENT is non-nil, then a property with | |
| 2224 a nil value is ignored. This feature is a virus that has infected | |
| 2225 old Lisp implementations, but should not be used except for backward | |
| 2226 compatibility. | |
| 2227 */ | |
| 2228 (a, b, nil_means_not_present)) | |
| 2229 { | |
|
4906
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Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2230 return (plists_differ (a, b, !NILP (nil_means_not_present), 1, 1, 0) |
| 428 | 2231 ? Qnil : Qt); |
| 2232 } | |
| 2233 | |
| 2234 /* Return the value associated with key PROPERTY in property list PLIST. | |
| 2235 Return nil if key not found. This function is used for internal | |
| 2236 property lists that cannot be directly manipulated by the user. | |
| 2237 */ | |
| 2238 | |
| 2239 Lisp_Object | |
| 2240 internal_plist_get (Lisp_Object plist, Lisp_Object property) | |
| 2241 { | |
| 2242 Lisp_Object tail; | |
| 2243 | |
| 2244 for (tail = plist; !NILP (tail); tail = XCDR (XCDR (tail))) | |
| 2245 { | |
| 2246 if (EQ (XCAR (tail), property)) | |
| 2247 return XCAR (XCDR (tail)); | |
| 2248 } | |
| 2249 | |
| 2250 return Qunbound; | |
| 2251 } | |
| 2252 | |
| 2253 /* Set PLIST's value for PROPERTY to VALUE. Analogous to | |
| 2254 internal_plist_get(). */ | |
| 2255 | |
| 2256 void | |
| 2257 internal_plist_put (Lisp_Object *plist, Lisp_Object property, | |
| 2258 Lisp_Object value) | |
| 2259 { | |
| 2260 Lisp_Object tail; | |
| 2261 | |
| 2262 for (tail = *plist; !NILP (tail); tail = XCDR (XCDR (tail))) | |
| 2263 { | |
| 2264 if (EQ (XCAR (tail), property)) | |
| 2265 { | |
| 2266 XCAR (XCDR (tail)) = value; | |
| 2267 return; | |
| 2268 } | |
| 2269 } | |
| 2270 | |
| 2271 *plist = Fcons (property, Fcons (value, *plist)); | |
| 2272 } | |
| 2273 | |
| 2274 int | |
| 2275 internal_remprop (Lisp_Object *plist, Lisp_Object property) | |
| 2276 { | |
| 2277 Lisp_Object tail, prev; | |
| 2278 | |
| 2279 for (tail = *plist, prev = Qnil; | |
| 2280 !NILP (tail); | |
| 2281 tail = XCDR (XCDR (tail))) | |
| 2282 { | |
| 2283 if (EQ (XCAR (tail), property)) | |
| 2284 { | |
| 2285 if (NILP (prev)) | |
| 2286 *plist = XCDR (XCDR (tail)); | |
| 2287 else | |
| 2288 XCDR (XCDR (prev)) = XCDR (XCDR (tail)); | |
| 2289 return 1; | |
| 2290 } | |
| 2291 else | |
| 2292 prev = tail; | |
| 2293 } | |
| 2294 | |
| 2295 return 0; | |
| 2296 } | |
| 2297 | |
| 2298 /* Called on a malformed property list. BADPLACE should be some | |
| 2299 place where truncating will form a good list -- i.e. we shouldn't | |
| 2300 result in a list with an odd length. */ | |
| 2301 | |
| 2302 static Lisp_Object | |
| 578 | 2303 bad_bad_bunny (Lisp_Object *plist, Lisp_Object *badplace, Error_Behavior errb) |
| 428 | 2304 { |
| 2305 if (ERRB_EQ (errb, ERROR_ME)) | |
| 2306 return Fsignal (Qmalformed_property_list, list2 (*plist, *badplace)); | |
| 2307 else | |
| 2308 { | |
| 2309 if (ERRB_EQ (errb, ERROR_ME_WARN)) | |
| 2310 { | |
| 2311 warn_when_safe_lispobj | |
| 2312 (Qlist, Qwarning, | |
| 771 | 2313 list2 (build_msg_string |
| 428 | 2314 ("Malformed property list -- list has been truncated"), |
| 2315 *plist)); | |
| 793 | 2316 /* #### WARNING: This is more dangerous than it seems; perhaps |
| 2317 not a good idea. It also violates the principle of least | |
| 2318 surprise -- passing in ERROR_ME_WARN causes truncation, but | |
| 2319 ERROR_ME and ERROR_ME_NOT don't. */ | |
| 428 | 2320 *badplace = Qnil; |
| 2321 } | |
| 2322 return Qunbound; | |
| 2323 } | |
| 2324 } | |
| 2325 | |
| 2326 /* Called on a circular property list. BADPLACE should be some place | |
| 2327 where truncating will result in an even-length list, as above. | |
| 2328 If doesn't particularly matter where we truncate -- anywhere we | |
| 2329 truncate along the entire list will break the circularity, because | |
| 2330 it will create a terminus and the list currently doesn't have one. | |
| 2331 */ | |
| 2332 | |
| 2333 static Lisp_Object | |
| 578 | 2334 bad_bad_turtle (Lisp_Object *plist, Lisp_Object *badplace, Error_Behavior errb) |
| 428 | 2335 { |
| 2336 if (ERRB_EQ (errb, ERROR_ME)) | |
| 2337 return Fsignal (Qcircular_property_list, list1 (*plist)); | |
| 2338 else | |
| 2339 { | |
| 2340 if (ERRB_EQ (errb, ERROR_ME_WARN)) | |
| 2341 { | |
| 2342 warn_when_safe_lispobj | |
| 2343 (Qlist, Qwarning, | |
| 771 | 2344 list2 (build_msg_string |
| 428 | 2345 ("Circular property list -- list has been truncated"), |
| 2346 *plist)); | |
| 793 | 2347 /* #### WARNING: This is more dangerous than it seems; perhaps |
| 2348 not a good idea. It also violates the principle of least | |
| 2349 surprise -- passing in ERROR_ME_WARN causes truncation, but | |
| 2350 ERROR_ME and ERROR_ME_NOT don't. */ | |
| 428 | 2351 *badplace = Qnil; |
| 2352 } | |
| 2353 return Qunbound; | |
| 2354 } | |
| 2355 } | |
| 2356 | |
| 2357 /* Advance the tortoise pointer by two (one iteration of a property-list | |
| 2358 loop) and the hare pointer by four and verify that no malformations | |
| 2359 or circularities exist. If so, return zero and store a value into | |
| 2360 RETVAL that should be returned by the calling function. Otherwise, | |
| 2361 return 1. See external_plist_get(). | |
| 2362 */ | |
| 2363 | |
| 2364 static int | |
| 2365 advance_plist_pointers (Lisp_Object *plist, | |
| 2366 Lisp_Object **tortoise, Lisp_Object **hare, | |
| 578 | 2367 Error_Behavior errb, Lisp_Object *retval) |
| 428 | 2368 { |
| 2369 int i; | |
| 2370 Lisp_Object *tortsave = *tortoise; | |
| 2371 | |
| 2372 /* Note that our "fixing" may be more brutal than necessary, | |
| 2373 but it's the user's own problem, not ours, if they went in and | |
| 2374 manually fucked up a plist. */ | |
| 2375 | |
| 2376 for (i = 0; i < 2; i++) | |
| 2377 { | |
| 2378 /* This is a standard iteration of a defensive-loop-checking | |
| 2379 loop. We just do it twice because we want to advance past | |
| 2380 both the property and its value. | |
| 2381 | |
| 2382 If the pointer indirection is confusing you, remember that | |
| 2383 one level of indirection on the hare and tortoise pointers | |
| 2384 is only due to pass-by-reference for this function. The other | |
| 2385 level is so that the plist can be fixed in place. */ | |
| 2386 | |
| 2387 /* When we reach the end of a well-formed plist, **HARE is | |
| 2388 nil. In that case, we don't do anything at all except | |
| 2389 advance TORTOISE by one. Otherwise, we advance HARE | |
| 2390 by two (making sure it's OK to do so), then advance | |
| 2391 TORTOISE by one (it will always be OK to do so because | |
| 2392 the HARE is always ahead of the TORTOISE and will have | |
| 2393 already verified the path), then make sure TORTOISE and | |
| 2394 HARE don't contain the same non-nil object -- if the | |
| 2395 TORTOISE and the HARE ever meet, then obviously we're | |
| 2396 in a circularity, and if we're in a circularity, then | |
| 2397 the TORTOISE and the HARE can't cross paths without | |
| 2398 meeting, since the HARE only gains one step over the | |
| 2399 TORTOISE per iteration. */ | |
| 2400 | |
| 2401 if (!NILP (**hare)) | |
| 2402 { | |
| 2403 Lisp_Object *haresave = *hare; | |
| 2404 if (!CONSP (**hare)) | |
| 2405 { | |
| 2406 *retval = bad_bad_bunny (plist, haresave, errb); | |
| 2407 return 0; | |
| 2408 } | |
| 2409 *hare = &XCDR (**hare); | |
| 2410 /* In a non-plist, we'd check here for a nil value for | |
| 2411 **HARE, which is OK (it just means the list has an | |
| 2412 odd number of elements). In a plist, it's not OK | |
| 2413 for the list to have an odd number of elements. */ | |
| 2414 if (!CONSP (**hare)) | |
| 2415 { | |
| 2416 *retval = bad_bad_bunny (plist, haresave, errb); | |
| 2417 return 0; | |
| 2418 } | |
| 2419 *hare = &XCDR (**hare); | |
| 2420 } | |
| 2421 | |
| 2422 *tortoise = &XCDR (**tortoise); | |
| 2423 if (!NILP (**hare) && EQ (**tortoise, **hare)) | |
| 2424 { | |
| 2425 *retval = bad_bad_turtle (plist, tortsave, errb); | |
| 2426 return 0; | |
| 2427 } | |
| 2428 } | |
| 2429 | |
| 2430 return 1; | |
| 2431 } | |
| 2432 | |
| 2433 /* Return the value of PROPERTY from PLIST, or Qunbound if | |
| 2434 property is not on the list. | |
| 2435 | |
| 2436 PLIST is a Lisp-accessible property list, meaning that it | |
| 2437 has to be checked for malformations and circularities. | |
| 2438 | |
| 2439 If ERRB is ERROR_ME, an error will be signalled. Otherwise, the | |
| 2440 function will never signal an error; and if ERRB is ERROR_ME_WARN, | |
| 2441 on finding a malformation or a circularity, it issues a warning and | |
| 2442 attempts to silently fix the problem. | |
| 2443 | |
| 2444 A pointer to PLIST is passed in so that PLIST can be successfully | |
| 2445 "fixed" even if the error is at the beginning of the plist. */ | |
| 2446 | |
| 2447 Lisp_Object | |
| 2448 external_plist_get (Lisp_Object *plist, Lisp_Object property, | |
| 578 | 2449 int laxp, Error_Behavior errb) |
| 428 | 2450 { |
| 2451 Lisp_Object *tortoise = plist; | |
| 2452 Lisp_Object *hare = plist; | |
| 2453 | |
| 2454 while (!NILP (*tortoise)) | |
| 2455 { | |
| 2456 Lisp_Object *tortsave = tortoise; | |
| 2457 Lisp_Object retval; | |
| 2458 | |
| 2459 /* We do the standard tortoise/hare march. We isolate the | |
| 2460 grungy stuff to do this in advance_plist_pointers(), though. | |
| 2461 To us, all this function does is advance the tortoise | |
| 2462 pointer by two and the hare pointer by four and make sure | |
| 2463 everything's OK. We first advance the pointers and then | |
| 2464 check if a property matched; this ensures that our | |
| 2465 check for a matching property is safe. */ | |
| 2466 | |
| 2467 if (!advance_plist_pointers (plist, &tortoise, &hare, errb, &retval)) | |
| 2468 return retval; | |
| 2469 | |
| 2470 if (!laxp ? EQ (XCAR (*tortsave), property) | |
| 2471 : internal_equal (XCAR (*tortsave), property, 0)) | |
| 2472 return XCAR (XCDR (*tortsave)); | |
| 2473 } | |
| 2474 | |
| 2475 return Qunbound; | |
| 2476 } | |
| 2477 | |
| 2478 /* Set PLIST's value for PROPERTY to VALUE, given a possibly | |
| 2479 malformed or circular plist. Analogous to external_plist_get(). */ | |
| 2480 | |
| 2481 void | |
| 2482 external_plist_put (Lisp_Object *plist, Lisp_Object property, | |
| 578 | 2483 Lisp_Object value, int laxp, Error_Behavior errb) |
| 428 | 2484 { |
| 2485 Lisp_Object *tortoise = plist; | |
| 2486 Lisp_Object *hare = plist; | |
| 2487 | |
| 2488 while (!NILP (*tortoise)) | |
| 2489 { | |
| 2490 Lisp_Object *tortsave = tortoise; | |
| 2491 Lisp_Object retval; | |
| 2492 | |
| 2493 /* See above */ | |
| 2494 if (!advance_plist_pointers (plist, &tortoise, &hare, errb, &retval)) | |
| 2495 return; | |
| 2496 | |
| 2497 if (!laxp ? EQ (XCAR (*tortsave), property) | |
| 2498 : internal_equal (XCAR (*tortsave), property, 0)) | |
| 2499 { | |
| 2500 XCAR (XCDR (*tortsave)) = value; | |
| 2501 return; | |
| 2502 } | |
| 2503 } | |
| 2504 | |
| 2505 *plist = Fcons (property, Fcons (value, *plist)); | |
| 2506 } | |
| 2507 | |
| 2508 int | |
| 2509 external_remprop (Lisp_Object *plist, Lisp_Object property, | |
| 578 | 2510 int laxp, Error_Behavior errb) |
| 428 | 2511 { |
| 2512 Lisp_Object *tortoise = plist; | |
| 2513 Lisp_Object *hare = plist; | |
| 2514 | |
| 2515 while (!NILP (*tortoise)) | |
| 2516 { | |
| 2517 Lisp_Object *tortsave = tortoise; | |
| 2518 Lisp_Object retval; | |
| 2519 | |
| 2520 /* See above */ | |
| 2521 if (!advance_plist_pointers (plist, &tortoise, &hare, errb, &retval)) | |
| 2522 return 0; | |
| 2523 | |
| 2524 if (!laxp ? EQ (XCAR (*tortsave), property) | |
| 2525 : internal_equal (XCAR (*tortsave), property, 0)) | |
| 2526 { | |
| 2527 /* Now you see why it's so convenient to have that level | |
| 2528 of indirection. */ | |
| 2529 *tortsave = XCDR (XCDR (*tortsave)); | |
| 2530 return 1; | |
| 2531 } | |
| 2532 } | |
| 2533 | |
| 2534 return 0; | |
| 2535 } | |
| 2536 | |
| 2537 DEFUN ("plist-get", Fplist_get, 2, 3, 0, /* | |
| 2538 Extract a value from a property list. | |
| 2539 PLIST is a property list, which is a list of the form | |
| 444 | 2540 \(PROPERTY1 VALUE1 PROPERTY2 VALUE2...). |
| 2541 PROPERTY is usually a symbol. | |
| 2542 This function returns the value corresponding to the PROPERTY, | |
| 2543 or DEFAULT if PROPERTY is not one of the properties on the list. | |
| 428 | 2544 */ |
| 444 | 2545 (plist, property, default_)) |
| 428 | 2546 { |
| 444 | 2547 Lisp_Object value = external_plist_get (&plist, property, 0, ERROR_ME); |
| 2548 return UNBOUNDP (value) ? default_ : value; | |
| 428 | 2549 } |
| 2550 | |
| 2551 DEFUN ("plist-put", Fplist_put, 3, 3, 0, /* | |
| 444 | 2552 Change value in PLIST of PROPERTY to VALUE. |
| 2553 PLIST is a property list, which is a list of the form | |
| 2554 \(PROPERTY1 VALUE1 PROPERTY2 VALUE2 ...). | |
| 2555 PROPERTY is usually a symbol and VALUE is any object. | |
| 2556 If PROPERTY is already a property on the list, its value is set to VALUE, | |
| 2557 otherwise the new PROPERTY VALUE pair is added. | |
| 2558 The new plist is returned; use `(setq x (plist-put x property value))' | |
| 2559 to be sure to use the new value. PLIST is modified by side effect. | |
| 428 | 2560 */ |
| 444 | 2561 (plist, property, value)) |
| 428 | 2562 { |
| 444 | 2563 external_plist_put (&plist, property, value, 0, ERROR_ME); |
| 428 | 2564 return plist; |
| 2565 } | |
| 2566 | |
| 2567 DEFUN ("plist-remprop", Fplist_remprop, 2, 2, 0, /* | |
| 444 | 2568 Remove from PLIST the property PROPERTY and its value. |
| 2569 PLIST is a property list, which is a list of the form | |
| 2570 \(PROPERTY1 VALUE1 PROPERTY2 VALUE2 ...). | |
| 2571 PROPERTY is usually a symbol. | |
| 2572 The new plist is returned; use `(setq x (plist-remprop x property))' | |
| 2573 to be sure to use the new value. PLIST is modified by side effect. | |
| 428 | 2574 */ |
| 444 | 2575 (plist, property)) |
| 428 | 2576 { |
| 444 | 2577 external_remprop (&plist, property, 0, ERROR_ME); |
| 428 | 2578 return plist; |
| 2579 } | |
| 2580 | |
| 2581 DEFUN ("plist-member", Fplist_member, 2, 2, 0, /* | |
| 444 | 2582 Return t if PROPERTY has a value specified in PLIST. |
| 428 | 2583 */ |
| 444 | 2584 (plist, property)) |
| 428 | 2585 { |
| 444 | 2586 Lisp_Object value = Fplist_get (plist, property, Qunbound); |
| 2587 return UNBOUNDP (value) ? Qnil : Qt; | |
| 428 | 2588 } |
| 2589 | |
| 2590 DEFUN ("check-valid-plist", Fcheck_valid_plist, 1, 1, 0, /* | |
| 2591 Given a plist, signal an error if there is anything wrong with it. | |
| 2592 This means that it's a malformed or circular plist. | |
| 2593 */ | |
| 2594 (plist)) | |
| 2595 { | |
| 2596 Lisp_Object *tortoise; | |
| 2597 Lisp_Object *hare; | |
| 2598 | |
| 2599 start_over: | |
| 2600 tortoise = &plist; | |
| 2601 hare = &plist; | |
| 2602 while (!NILP (*tortoise)) | |
| 2603 { | |
| 2604 Lisp_Object retval; | |
| 2605 | |
| 2606 /* See above */ | |
| 2607 if (!advance_plist_pointers (&plist, &tortoise, &hare, ERROR_ME, | |
| 2608 &retval)) | |
| 2609 goto start_over; | |
| 2610 } | |
| 2611 | |
| 2612 return Qnil; | |
| 2613 } | |
| 2614 | |
| 2615 DEFUN ("valid-plist-p", Fvalid_plist_p, 1, 1, 0, /* | |
| 2616 Given a plist, return non-nil if its format is correct. | |
| 2617 If it returns nil, `check-valid-plist' will signal an error when given | |
| 442 | 2618 the plist; that means it's a malformed or circular plist. |
| 428 | 2619 */ |
| 2620 (plist)) | |
| 2621 { | |
| 2622 Lisp_Object *tortoise; | |
| 2623 Lisp_Object *hare; | |
| 2624 | |
| 2625 tortoise = &plist; | |
| 2626 hare = &plist; | |
| 2627 while (!NILP (*tortoise)) | |
| 2628 { | |
| 2629 Lisp_Object retval; | |
| 2630 | |
| 2631 /* See above */ | |
| 2632 if (!advance_plist_pointers (&plist, &tortoise, &hare, ERROR_ME_NOT, | |
| 2633 &retval)) | |
| 2634 return Qnil; | |
| 2635 } | |
| 2636 | |
| 2637 return Qt; | |
| 2638 } | |
| 2639 | |
| 2640 DEFUN ("canonicalize-plist", Fcanonicalize_plist, 1, 2, 0, /* | |
| 2641 Destructively remove any duplicate entries from a plist. | |
| 2642 In such cases, the first entry applies. | |
| 2643 | |
| 2644 If optional arg NIL-MEANS-NOT-PRESENT is non-nil, then a property with | |
| 2645 a nil value is removed. This feature is a virus that has infected | |
| 2646 old Lisp implementations, but should not be used except for backward | |
| 2647 compatibility. | |
| 2648 | |
| 2649 The new plist is returned. If NIL-MEANS-NOT-PRESENT is given, the | |
| 2650 return value may not be EQ to the passed-in value, so make sure to | |
| 2651 `setq' the value back into where it came from. | |
| 2652 */ | |
| 2653 (plist, nil_means_not_present)) | |
| 2654 { | |
| 2655 Lisp_Object head = plist; | |
| 2656 | |
| 2657 Fcheck_valid_plist (plist); | |
| 2658 | |
| 2659 while (!NILP (plist)) | |
| 2660 { | |
| 2661 Lisp_Object prop = Fcar (plist); | |
| 2662 Lisp_Object next = Fcdr (plist); | |
| 2663 | |
| 2664 CHECK_CONS (next); /* just make doubly sure we catch any errors */ | |
| 2665 if (!NILP (nil_means_not_present) && NILP (Fcar (next))) | |
| 2666 { | |
| 2667 if (EQ (head, plist)) | |
| 2668 head = Fcdr (next); | |
| 2669 plist = Fcdr (next); | |
| 2670 continue; | |
| 2671 } | |
| 2672 /* external_remprop returns 1 if it removed any property. | |
| 2673 We have to loop till it didn't remove anything, in case | |
| 2674 the property occurs many times. */ | |
| 2675 while (external_remprop (&XCDR (next), prop, 0, ERROR_ME)) | |
| 2676 DO_NOTHING; | |
| 2677 plist = Fcdr (next); | |
| 2678 } | |
| 2679 | |
| 2680 return head; | |
| 2681 } | |
| 2682 | |
| 2683 DEFUN ("lax-plist-get", Flax_plist_get, 2, 3, 0, /* | |
| 2684 Extract a value from a lax property list. | |
| 444 | 2685 LAX-PLIST is a lax property list, which is a list of the form |
| 2686 \(PROPERTY1 VALUE1 PROPERTY2 VALUE2...), where comparisons between | |
| 2687 properties is done using `equal' instead of `eq'. | |
| 2688 PROPERTY is usually a symbol. | |
| 2689 This function returns the value corresponding to PROPERTY, | |
| 2690 or DEFAULT if PROPERTY is not one of the properties on the list. | |
| 428 | 2691 */ |
| 444 | 2692 (lax_plist, property, default_)) |
| 428 | 2693 { |
| 444 | 2694 Lisp_Object value = external_plist_get (&lax_plist, property, 1, ERROR_ME); |
| 2695 return UNBOUNDP (value) ? default_ : value; | |
| 428 | 2696 } |
| 2697 | |
| 2698 DEFUN ("lax-plist-put", Flax_plist_put, 3, 3, 0, /* | |
| 444 | 2699 Change value in LAX-PLIST of PROPERTY to VALUE. |
| 2700 LAX-PLIST is a lax property list, which is a list of the form | |
| 2701 \(PROPERTY1 VALUE1 PROPERTY2 VALUE2...), where comparisons between | |
| 2702 properties is done using `equal' instead of `eq'. | |
| 2703 PROPERTY is usually a symbol and VALUE is any object. | |
| 2704 If PROPERTY is already a property on the list, its value is set to | |
| 2705 VALUE, otherwise the new PROPERTY VALUE pair is added. | |
| 2706 The new plist is returned; use `(setq x (lax-plist-put x property value))' | |
| 2707 to be sure to use the new value. LAX-PLIST is modified by side effect. | |
| 428 | 2708 */ |
| 444 | 2709 (lax_plist, property, value)) |
| 428 | 2710 { |
| 444 | 2711 external_plist_put (&lax_plist, property, value, 1, ERROR_ME); |
| 428 | 2712 return lax_plist; |
| 2713 } | |
| 2714 | |
| 2715 DEFUN ("lax-plist-remprop", Flax_plist_remprop, 2, 2, 0, /* | |
| 444 | 2716 Remove from LAX-PLIST the property PROPERTY and its value. |
| 2717 LAX-PLIST is a lax property list, which is a list of the form | |
| 2718 \(PROPERTY1 VALUE1 PROPERTY2 VALUE2...), where comparisons between | |
| 2719 properties is done using `equal' instead of `eq'. | |
| 2720 PROPERTY is usually a symbol. | |
| 2721 The new plist is returned; use `(setq x (lax-plist-remprop x property))' | |
| 2722 to be sure to use the new value. LAX-PLIST is modified by side effect. | |
| 428 | 2723 */ |
| 444 | 2724 (lax_plist, property)) |
| 428 | 2725 { |
| 444 | 2726 external_remprop (&lax_plist, property, 1, ERROR_ME); |
| 428 | 2727 return lax_plist; |
| 2728 } | |
| 2729 | |
| 2730 DEFUN ("lax-plist-member", Flax_plist_member, 2, 2, 0, /* | |
| 444 | 2731 Return t if PROPERTY has a value specified in LAX-PLIST. |
| 2732 LAX-PLIST is a lax property list, which is a list of the form | |
| 2733 \(PROPERTY1 VALUE1 PROPERTY2 VALUE2...), where comparisons between | |
| 2734 properties is done using `equal' instead of `eq'. | |
| 428 | 2735 */ |
| 444 | 2736 (lax_plist, property)) |
| 428 | 2737 { |
| 444 | 2738 return UNBOUNDP (Flax_plist_get (lax_plist, property, Qunbound)) ? Qnil : Qt; |
| 428 | 2739 } |
| 2740 | |
| 2741 DEFUN ("canonicalize-lax-plist", Fcanonicalize_lax_plist, 1, 2, 0, /* | |
| 2742 Destructively remove any duplicate entries from a lax plist. | |
| 2743 In such cases, the first entry applies. | |
| 2744 | |
| 2745 If optional arg NIL-MEANS-NOT-PRESENT is non-nil, then a property with | |
| 2746 a nil value is removed. This feature is a virus that has infected | |
| 2747 old Lisp implementations, but should not be used except for backward | |
| 2748 compatibility. | |
| 2749 | |
| 2750 The new plist is returned. If NIL-MEANS-NOT-PRESENT is given, the | |
| 2751 return value may not be EQ to the passed-in value, so make sure to | |
| 2752 `setq' the value back into where it came from. | |
| 2753 */ | |
| 2754 (lax_plist, nil_means_not_present)) | |
| 2755 { | |
| 2756 Lisp_Object head = lax_plist; | |
| 2757 | |
| 2758 Fcheck_valid_plist (lax_plist); | |
| 2759 | |
| 2760 while (!NILP (lax_plist)) | |
| 2761 { | |
| 2762 Lisp_Object prop = Fcar (lax_plist); | |
| 2763 Lisp_Object next = Fcdr (lax_plist); | |
| 2764 | |
| 2765 CHECK_CONS (next); /* just make doubly sure we catch any errors */ | |
| 2766 if (!NILP (nil_means_not_present) && NILP (Fcar (next))) | |
| 2767 { | |
| 2768 if (EQ (head, lax_plist)) | |
| 2769 head = Fcdr (next); | |
| 2770 lax_plist = Fcdr (next); | |
| 2771 continue; | |
| 2772 } | |
| 2773 /* external_remprop returns 1 if it removed any property. | |
| 2774 We have to loop till it didn't remove anything, in case | |
| 2775 the property occurs many times. */ | |
| 2776 while (external_remprop (&XCDR (next), prop, 1, ERROR_ME)) | |
| 2777 DO_NOTHING; | |
| 2778 lax_plist = Fcdr (next); | |
| 2779 } | |
| 2780 | |
| 2781 return head; | |
| 2782 } | |
| 2783 | |
| 2784 /* In C because the frame props stuff uses it */ | |
| 2785 | |
| 2786 DEFUN ("destructive-alist-to-plist", Fdestructive_alist_to_plist, 1, 1, 0, /* | |
| 2787 Convert association list ALIST into the equivalent property-list form. | |
| 2788 The plist is returned. This converts from | |
| 2789 | |
| 2790 \((a . 1) (b . 2) (c . 3)) | |
| 2791 | |
| 2792 into | |
| 2793 | |
| 2794 \(a 1 b 2 c 3) | |
| 2795 | |
| 2796 The original alist is destroyed in the process of constructing the plist. | |
| 2797 See also `alist-to-plist'. | |
| 2798 */ | |
| 2799 (alist)) | |
| 2800 { | |
| 2801 Lisp_Object head = alist; | |
| 2802 while (!NILP (alist)) | |
| 2803 { | |
| 2804 /* remember the alist element. */ | |
| 2805 Lisp_Object el = Fcar (alist); | |
| 2806 | |
| 2807 Fsetcar (alist, Fcar (el)); | |
| 2808 Fsetcar (el, Fcdr (el)); | |
| 2809 Fsetcdr (el, Fcdr (alist)); | |
| 2810 Fsetcdr (alist, el); | |
| 2811 alist = Fcdr (Fcdr (alist)); | |
| 2812 } | |
| 2813 | |
| 2814 return head; | |
| 2815 } | |
| 2816 | |
| 2817 DEFUN ("get", Fget, 2, 3, 0, /* | |
| 442 | 2818 Return the value of OBJECT's PROPERTY property. |
| 2819 This is the last VALUE stored with `(put OBJECT PROPERTY VALUE)'. | |
| 428 | 2820 If there is no such property, return optional third arg DEFAULT |
| 442 | 2821 \(which defaults to `nil'). OBJECT can be a symbol, string, extent, |
| 2822 face, or glyph. See also `put', `remprop', and `object-plist'. | |
| 428 | 2823 */ |
| 442 | 2824 (object, property, default_)) |
| 428 | 2825 { |
| 2826 /* Various places in emacs call Fget() and expect it not to quit, | |
| 2827 so don't quit. */ | |
| 442 | 2828 Lisp_Object val; |
| 2829 | |
| 2830 if (LRECORDP (object) && XRECORD_LHEADER_IMPLEMENTATION (object)->getprop) | |
| 2831 val = XRECORD_LHEADER_IMPLEMENTATION (object)->getprop (object, property); | |
| 428 | 2832 else |
| 563 | 2833 invalid_operation ("Object type has no properties", object); |
| 442 | 2834 |
| 2835 return UNBOUNDP (val) ? default_ : val; | |
| 428 | 2836 } |
| 2837 | |
| 2838 DEFUN ("put", Fput, 3, 3, 0, /* | |
| 442 | 2839 Set OBJECT's PROPERTY to VALUE. |
| 2840 It can be subsequently retrieved with `(get OBJECT PROPERTY)'. | |
| 2841 OBJECT can be a symbol, face, extent, or string. | |
| 428 | 2842 For a string, no properties currently have predefined meanings. |
| 2843 For the predefined properties for extents, see `set-extent-property'. | |
| 2844 For the predefined properties for faces, see `set-face-property'. | |
| 2845 See also `get', `remprop', and `object-plist'. | |
| 2846 */ | |
| 442 | 2847 (object, property, value)) |
| 428 | 2848 { |
| 1920 | 2849 /* This function cannot GC */ |
| 428 | 2850 CHECK_LISP_WRITEABLE (object); |
| 2851 | |
| 442 | 2852 if (LRECORDP (object) && XRECORD_LHEADER_IMPLEMENTATION (object)->putprop) |
| 428 | 2853 { |
| 442 | 2854 if (! XRECORD_LHEADER_IMPLEMENTATION (object)->putprop |
| 2855 (object, property, value)) | |
| 563 | 2856 invalid_change ("Can't set property on object", property); |
| 428 | 2857 } |
| 2858 else | |
| 563 | 2859 invalid_change ("Object type has no settable properties", object); |
| 428 | 2860 |
| 2861 return value; | |
| 2862 } | |
| 2863 | |
| 2864 DEFUN ("remprop", Fremprop, 2, 2, 0, /* | |
| 442 | 2865 Remove, from OBJECT's property list, PROPERTY and its corresponding value. |
| 2866 OBJECT can be a symbol, string, extent, face, or glyph. Return non-nil | |
| 2867 if the property list was actually modified (i.e. if PROPERTY was present | |
| 2868 in the property list). See also `get', `put', and `object-plist'. | |
| 428 | 2869 */ |
| 442 | 2870 (object, property)) |
| 428 | 2871 { |
| 442 | 2872 int ret = 0; |
| 2873 | |
| 428 | 2874 CHECK_LISP_WRITEABLE (object); |
| 2875 | |
| 442 | 2876 if (LRECORDP (object) && XRECORD_LHEADER_IMPLEMENTATION (object)->remprop) |
| 428 | 2877 { |
| 442 | 2878 ret = XRECORD_LHEADER_IMPLEMENTATION (object)->remprop (object, property); |
| 2879 if (ret == -1) | |
| 563 | 2880 invalid_change ("Can't remove property from object", property); |
| 428 | 2881 } |
| 2882 else | |
| 563 | 2883 invalid_change ("Object type has no removable properties", object); |
| 442 | 2884 |
| 2885 return ret ? Qt : Qnil; | |
| 428 | 2886 } |
| 2887 | |
| 2888 DEFUN ("object-plist", Fobject_plist, 1, 1, 0, /* | |
| 442 | 2889 Return a property list of OBJECT's properties. |
| 2890 For a symbol, this is equivalent to `symbol-plist'. | |
| 2891 OBJECT can be a symbol, string, extent, face, or glyph. | |
| 2892 Do not modify the returned property list directly; | |
| 2893 this may or may not have the desired effects. Use `put' instead. | |
| 428 | 2894 */ |
| 2895 (object)) | |
| 2896 { | |
| 442 | 2897 if (LRECORDP (object) && XRECORD_LHEADER_IMPLEMENTATION (object)->plist) |
| 2898 return XRECORD_LHEADER_IMPLEMENTATION (object)->plist (object); | |
| 428 | 2899 else |
| 563 | 2900 invalid_operation ("Object type has no properties", object); |
| 428 | 2901 |
| 2902 return Qnil; | |
| 2903 } | |
| 2904 | |
| 2905 | |
| 853 | 2906 static Lisp_Object |
| 2907 tweaked_internal_equal (Lisp_Object obj1, Lisp_Object obj2, | |
| 2908 Lisp_Object depth) | |
| 2909 { | |
| 2910 return make_int (internal_equal (obj1, obj2, XINT (depth))); | |
| 2911 } | |
| 2912 | |
| 2913 int | |
| 2914 internal_equal_trapping_problems (Lisp_Object warning_class, | |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4966
diff
changeset
|
2915 const Ascbyte *warning_string, |
| 853 | 2916 int flags, |
| 2917 struct call_trapping_problems_result *p, | |
| 2918 int retval, | |
| 2919 Lisp_Object obj1, Lisp_Object obj2, | |
| 2920 int depth) | |
| 2921 { | |
| 2922 Lisp_Object glorp = | |
| 2923 va_call_trapping_problems (warning_class, warning_string, | |
| 2924 flags, p, | |
| 2925 (lisp_fn_t) tweaked_internal_equal, | |
| 2926 3, obj1, obj2, make_int (depth)); | |
| 2927 if (UNBOUNDP (glorp)) | |
| 2928 return retval; | |
| 2929 else | |
| 2930 return XINT (glorp); | |
| 2931 } | |
| 2932 | |
| 428 | 2933 int |
| 2934 internal_equal (Lisp_Object obj1, Lisp_Object obj2, int depth) | |
| 2935 { | |
| 2936 if (depth > 200) | |
| 563 | 2937 stack_overflow ("Stack overflow in equal", Qunbound); |
| 428 | 2938 QUIT; |
| 2939 if (EQ_WITH_EBOLA_NOTICE (obj1, obj2)) | |
| 2940 return 1; | |
| 2941 /* Note that (equal 20 20.0) should be nil */ | |
| 2942 if (XTYPE (obj1) != XTYPE (obj2)) | |
| 2943 return 0; | |
| 2944 if (LRECORDP (obj1)) | |
| 2945 { | |
| 442 | 2946 const struct lrecord_implementation |
| 428 | 2947 *imp1 = XRECORD_LHEADER_IMPLEMENTATION (obj1), |
| 2948 *imp2 = XRECORD_LHEADER_IMPLEMENTATION (obj2); | |
| 2949 | |
| 2950 return (imp1 == imp2) && | |
| 2951 /* EQ-ness of the objects was noticed above */ | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2952 (imp1->equal && (imp1->equal) (obj1, obj2, depth, 0)); |
| 428 | 2953 } |
| 2954 | |
| 2955 return 0; | |
| 2956 } | |
| 2957 | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2958 enum array_type |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2959 { |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2960 ARRAY_NONE = 0, |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2961 ARRAY_STRING, |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2962 ARRAY_VECTOR, |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2963 ARRAY_BIT_VECTOR |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2964 }; |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2965 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2966 static enum array_type |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2967 array_type (Lisp_Object obj) |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2968 { |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2969 if (STRINGP (obj)) |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2970 return ARRAY_STRING; |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2971 if (VECTORP (obj)) |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2972 return ARRAY_VECTOR; |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2973 if (BIT_VECTORP (obj)) |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2974 return ARRAY_BIT_VECTOR; |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2975 return ARRAY_NONE; |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2976 } |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2977 |
| 801 | 2978 int |
| 2979 internal_equalp (Lisp_Object obj1, Lisp_Object obj2, int depth) | |
| 2980 { | |
| 2981 if (depth > 200) | |
| 2982 stack_overflow ("Stack overflow in equalp", Qunbound); | |
| 2983 QUIT; | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2984 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2985 /* 1. Objects that are `eq' are equal. This will catch the common case |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2986 of two equal fixnums or the same object seen twice. */ |
| 801 | 2987 if (EQ_WITH_EBOLA_NOTICE (obj1, obj2)) |
| 2988 return 1; | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2989 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2990 /* 2. If both numbers, compare with `='. */ |
| 1983 | 2991 if (NUMBERP (obj1) && NUMBERP (obj2)) |
| 2992 { | |
|
4910
6bc1f3f6cf0d
Make canoncase visible to Lisp; use it with chars in internal_equalp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4906
diff
changeset
|
2993 return (0 == bytecode_arithcompare (obj1, obj2)); |
| 1983 | 2994 } |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2995 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2996 /* 3. If characters, compare case-insensitively. */ |
| 801 | 2997 if (CHARP (obj1) && CHARP (obj2)) |
|
4910
6bc1f3f6cf0d
Make canoncase visible to Lisp; use it with chars in internal_equalp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4906
diff
changeset
|
2998 return CANONCASE (0, XCHAR (obj1)) == CANONCASE (0, XCHAR (obj2)); |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2999 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3000 /* 4. If arrays of different types, compare their lengths, and |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3001 then compare element-by-element. */ |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3002 { |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3003 enum array_type artype1, artype2; |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3004 artype1 = array_type (obj1); |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3005 artype2 = array_type (obj2); |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3006 if (artype1 != artype2 && artype1 && artype2) |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3007 { |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3008 EMACS_INT i; |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3009 EMACS_INT l1 = XINT (Flength (obj1)); |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3010 EMACS_INT l2 = XINT (Flength (obj2)); |
|
4910
6bc1f3f6cf0d
Make canoncase visible to Lisp; use it with chars in internal_equalp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4906
diff
changeset
|
3011 /* Both arrays, but of different lengths */ |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3012 if (l1 != l2) |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3013 return 0; |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3014 for (i = 0; i < l1; i++) |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3015 if (!internal_equalp (Faref (obj1, make_int (i)), |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3016 Faref (obj2, make_int (i)), depth + 1)) |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3017 return 0; |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3018 return 1; |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3019 } |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3020 } |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3021 /* 5. Else, they must be the same type. If so, call the equal() method, |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3022 telling it to fold case. For objects that care about case-folding |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3023 their contents, the equal() method will call internal_equal_0(). */ |
| 801 | 3024 if (XTYPE (obj1) != XTYPE (obj2)) |
| 3025 return 0; | |
| 3026 if (LRECORDP (obj1)) | |
| 3027 { | |
| 3028 const struct lrecord_implementation | |
| 3029 *imp1 = XRECORD_LHEADER_IMPLEMENTATION (obj1), | |
| 3030 *imp2 = XRECORD_LHEADER_IMPLEMENTATION (obj2); | |
| 3031 | |
| 3032 return (imp1 == imp2) && | |
| 3033 /* EQ-ness of the objects was noticed above */ | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3034 (imp1->equal && (imp1->equal) (obj1, obj2, depth, 1)); |
| 801 | 3035 } |
| 3036 | |
| 3037 return 0; | |
| 3038 } | |
| 3039 | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3040 int |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3041 internal_equal_0 (Lisp_Object obj1, Lisp_Object obj2, int depth, int foldcase) |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3042 { |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3043 if (foldcase) |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3044 return internal_equalp (obj1, obj2, depth); |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3045 else |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3046 return internal_equal (obj1, obj2, depth); |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3047 } |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3048 |
| 428 | 3049 /* Note that we may be calling sub-objects that will use |
| 3050 internal_equal() (instead of internal_old_equal()). Oh well. | |
| 3051 We will get an Ebola note if there's any possibility of confusion, | |
| 3052 but that seems unlikely. */ | |
| 3053 | |
| 3054 static int | |
| 3055 internal_old_equal (Lisp_Object obj1, Lisp_Object obj2, int depth) | |
| 3056 { | |
| 3057 if (depth > 200) | |
| 563 | 3058 stack_overflow ("Stack overflow in equal", Qunbound); |
| 428 | 3059 QUIT; |
| 3060 if (HACKEQ_UNSAFE (obj1, obj2)) | |
| 3061 return 1; | |
| 3062 /* Note that (equal 20 20.0) should be nil */ | |
| 3063 if (XTYPE (obj1) != XTYPE (obj2)) | |
| 3064 return 0; | |
| 3065 | |
| 3066 return internal_equal (obj1, obj2, depth); | |
| 3067 } | |
| 3068 | |
| 3069 DEFUN ("equal", Fequal, 2, 2, 0, /* | |
| 3070 Return t if two Lisp objects have similar structure and contents. | |
| 3071 They must have the same data type. | |
| 3072 Conses are compared by comparing the cars and the cdrs. | |
| 3073 Vectors and strings are compared element by element. | |
| 3074 Numbers are compared by value. Symbols must match exactly. | |
| 3075 */ | |
| 444 | 3076 (object1, object2)) |
| 428 | 3077 { |
| 444 | 3078 return internal_equal (object1, object2, 0) ? Qt : Qnil; |
| 428 | 3079 } |
| 3080 | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3081 DEFUN ("equalp", Fequalp, 2, 2, 0, /* |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3082 Return t if two Lisp objects have similar structure and contents. |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3083 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3084 This is like `equal', except that it accepts numerically equal |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3085 numbers of different types (float, integer, bignum, bigfloat), and also |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3086 compares strings and characters case-insensitively. |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3087 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3088 Type objects that are arrays (that is, strings, bit-vectors, and vectors) |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3089 of the same length and with contents that are `equalp' are themselves |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3090 `equalp', regardless of whether the two objects have the same type. |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3091 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3092 Other objects whose primary purpose is as containers of other objects are |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3093 `equalp' if they would otherwise be equal (same length, type, etc.) and |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3094 their contents are `equalp'. This goes for conses, weak lists, |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3095 weak boxes, ephemerons, specifiers, hash tables, char tables and range |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3096 tables. However, objects that happen to contain other objects but are not |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3097 primarily designed for this purpose (e.g. compiled functions, events or |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3098 display-related objects such as glyphs, faces or extents) are currently |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3099 compared using `equalp' the same way as using `equal'. |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3100 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3101 More specifically, two hash tables are `equalp' if they have the same test |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3102 (see `hash-table-test'), the same number of entries, and the same value for |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3103 `hash-table-weakness', and if, for each entry in one hash table, its key is |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3104 equivalent to a key in the other hash table using the hash table test, and |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3105 its value is `equalp' to the other hash table's value for that key. |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3106 */ |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3107 (object1, object2)) |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3108 { |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3109 return internal_equalp (object1, object2, 0) ? Qt : Qnil; |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3110 } |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3111 |
| 428 | 3112 DEFUN ("old-equal", Fold_equal, 2, 2, 0, /* |
| 3113 Return t if two Lisp objects have similar structure and contents. | |
| 3114 They must have the same data type. | |
| 3115 \(Note, however, that an exception is made for characters and integers; | |
| 3116 this is known as the "char-int confoundance disease." See `eq' and | |
| 3117 `old-eq'.) | |
| 3118 This function is provided only for byte-code compatibility with v19. | |
| 3119 Do not use it. | |
| 3120 */ | |
| 444 | 3121 (object1, object2)) |
| 428 | 3122 { |
| 444 | 3123 return internal_old_equal (object1, object2, 0) ? Qt : Qnil; |
| 428 | 3124 } |
| 3125 | |
| 3126 | |
| 3127 DEFUN ("fillarray", Ffillarray, 2, 2, 0, /* | |
| 434 | 3128 Destructively modify ARRAY by replacing each element with ITEM. |
| 428 | 3129 ARRAY is a vector, bit vector, or string. |
| 3130 */ | |
| 3131 (array, item)) | |
| 3132 { | |
| 3133 retry: | |
| 3134 if (STRINGP (array)) | |
| 3135 { | |
| 793 | 3136 Bytecount old_bytecount = XSTRING_LENGTH (array); |
| 434 | 3137 Bytecount new_bytecount; |
| 3138 Bytecount item_bytecount; | |
| 867 | 3139 Ibyte item_buf[MAX_ICHAR_LEN]; |
| 3140 Ibyte *p; | |
| 3141 Ibyte *end; | |
| 434 | 3142 |
| 428 | 3143 CHECK_CHAR_COERCE_INT (item); |
| 2720 | 3144 |
| 428 | 3145 CHECK_LISP_WRITEABLE (array); |
| 771 | 3146 sledgehammer_check_ascii_begin (array); |
| 867 | 3147 item_bytecount = set_itext_ichar (item_buf, XCHAR (item)); |
| 826 | 3148 new_bytecount = item_bytecount * (Bytecount) string_char_length (array); |
| 793 | 3149 |
| 3150 resize_string (array, -1, new_bytecount - old_bytecount); | |
| 3151 | |
| 3152 for (p = XSTRING_DATA (array), end = p + new_bytecount; | |
| 434 | 3153 p < end; |
| 3154 p += item_bytecount) | |
| 3155 memcpy (p, item_buf, item_bytecount); | |
| 3156 *p = '\0'; | |
| 3157 | |
| 793 | 3158 XSET_STRING_ASCII_BEGIN (array, |
| 3159 item_bytecount == 1 ? | |
| 3160 min (new_bytecount, MAX_STRING_ASCII_BEGIN) : | |
| 3161 0); | |
| 428 | 3162 bump_string_modiff (array); |
| 771 | 3163 sledgehammer_check_ascii_begin (array); |
| 428 | 3164 } |
| 3165 else if (VECTORP (array)) | |
| 3166 { | |
| 3167 Lisp_Object *p = XVECTOR_DATA (array); | |
| 665 | 3168 Elemcount len = XVECTOR_LENGTH (array); |
| 428 | 3169 CHECK_LISP_WRITEABLE (array); |
| 3170 while (len--) | |
| 3171 *p++ = item; | |
| 3172 } | |
| 3173 else if (BIT_VECTORP (array)) | |
| 3174 { | |
| 440 | 3175 Lisp_Bit_Vector *v = XBIT_VECTOR (array); |
| 665 | 3176 Elemcount len = bit_vector_length (v); |
| 428 | 3177 int bit; |
| 3178 CHECK_BIT (item); | |
| 444 | 3179 bit = XINT (item); |
| 428 | 3180 CHECK_LISP_WRITEABLE (array); |
| 3181 while (len--) | |
| 3182 set_bit_vector_bit (v, len, bit); | |
| 3183 } | |
| 3184 else | |
| 3185 { | |
| 3186 array = wrong_type_argument (Qarrayp, array); | |
| 3187 goto retry; | |
| 3188 } | |
| 3189 return array; | |
| 3190 } | |
| 3191 | |
| 3192 Lisp_Object | |
| 3193 nconc2 (Lisp_Object arg1, Lisp_Object arg2) | |
| 3194 { | |
| 3195 Lisp_Object args[2]; | |
| 3196 struct gcpro gcpro1; | |
| 3197 args[0] = arg1; | |
| 3198 args[1] = arg2; | |
| 3199 | |
| 3200 GCPRO1 (args[0]); | |
| 3201 gcpro1.nvars = 2; | |
| 3202 | |
| 3203 RETURN_UNGCPRO (bytecode_nconc2 (args)); | |
| 3204 } | |
| 3205 | |
| 3206 Lisp_Object | |
| 3207 bytecode_nconc2 (Lisp_Object *args) | |
| 3208 { | |
| 3209 retry: | |
| 3210 | |
| 3211 if (CONSP (args[0])) | |
| 3212 { | |
| 3213 /* (setcdr (last args[0]) args[1]) */ | |
| 3214 Lisp_Object tortoise, hare; | |
| 665 | 3215 Elemcount count; |
| 428 | 3216 |
| 3217 for (hare = tortoise = args[0], count = 0; | |
| 3218 CONSP (XCDR (hare)); | |
| 3219 hare = XCDR (hare), count++) | |
| 3220 { | |
| 3221 if (count < CIRCULAR_LIST_SUSPICION_LENGTH) continue; | |
| 3222 | |
| 3223 if (count & 1) | |
| 3224 tortoise = XCDR (tortoise); | |
| 3225 if (EQ (hare, tortoise)) | |
| 3226 signal_circular_list_error (args[0]); | |
| 3227 } | |
| 3228 XCDR (hare) = args[1]; | |
| 3229 return args[0]; | |
| 3230 } | |
| 3231 else if (NILP (args[0])) | |
| 3232 { | |
| 3233 return args[1]; | |
| 3234 } | |
| 3235 else | |
| 3236 { | |
| 3237 args[0] = wrong_type_argument (args[0], Qlistp); | |
| 3238 goto retry; | |
| 3239 } | |
| 3240 } | |
| 3241 | |
| 3242 DEFUN ("nconc", Fnconc, 0, MANY, 0, /* | |
| 3243 Concatenate any number of lists by altering them. | |
| 3244 Only the last argument is not altered, and need not be a list. | |
| 3245 Also see: `append'. | |
| 3246 If the first argument is nil, there is no way to modify it by side | |
| 3247 effect; therefore, write `(setq foo (nconc foo list))' to be sure of | |
| 3248 changing the value of `foo'. | |
|
4693
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3842
diff
changeset
|
3249 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3842
diff
changeset
|
3250 arguments: (&rest ARGS) |
| 428 | 3251 */ |
| 3252 (int nargs, Lisp_Object *args)) | |
| 3253 { | |
| 3254 int argnum = 0; | |
| 3255 struct gcpro gcpro1; | |
| 3256 | |
| 3257 /* The modus operandi in Emacs is "caller gc-protects args". | |
| 3258 However, nconc (particularly nconc2 ()) is called many times | |
| 3259 in Emacs on freshly created stuff (e.g. you see the idiom | |
| 3260 nconc2 (Fcopy_sequence (foo), bar) a lot). So we help those | |
| 3261 callers out by protecting the args ourselves to save them | |
| 3262 a lot of temporary-variable grief. */ | |
| 3263 | |
| 3264 GCPRO1 (args[0]); | |
| 3265 gcpro1.nvars = nargs; | |
| 3266 | |
| 3267 while (argnum < nargs) | |
| 3268 { | |
| 3269 Lisp_Object val; | |
| 3270 retry: | |
| 3271 val = args[argnum]; | |
| 3272 if (CONSP (val)) | |
| 3273 { | |
| 3274 /* `val' is the first cons, which will be our return value. */ | |
| 3275 /* `last_cons' will be the cons cell to mutate. */ | |
| 3276 Lisp_Object last_cons = val; | |
| 3277 Lisp_Object tortoise = val; | |
| 3278 | |
| 3279 for (argnum++; argnum < nargs; argnum++) | |
| 3280 { | |
| 3281 Lisp_Object next = args[argnum]; | |
| 3282 retry_next: | |
| 3283 if (CONSP (next) || argnum == nargs -1) | |
| 3284 { | |
| 3285 /* (setcdr (last val) next) */ | |
| 665 | 3286 Elemcount count; |
| 428 | 3287 |
| 3288 for (count = 0; | |
| 3289 CONSP (XCDR (last_cons)); | |
| 3290 last_cons = XCDR (last_cons), count++) | |
| 3291 { | |
| 3292 if (count < CIRCULAR_LIST_SUSPICION_LENGTH) continue; | |
| 3293 | |
| 3294 if (count & 1) | |
| 3295 tortoise = XCDR (tortoise); | |
| 3296 if (EQ (last_cons, tortoise)) | |
| 3297 signal_circular_list_error (args[argnum-1]); | |
| 3298 } | |
| 3299 XCDR (last_cons) = next; | |
| 3300 } | |
| 3301 else if (NILP (next)) | |
| 3302 { | |
| 3303 continue; | |
| 3304 } | |
| 3305 else | |
| 3306 { | |
| 3307 next = wrong_type_argument (Qlistp, next); | |
| 3308 goto retry_next; | |
| 3309 } | |
| 3310 } | |
| 3311 RETURN_UNGCPRO (val); | |
| 3312 } | |
| 3313 else if (NILP (val)) | |
| 3314 argnum++; | |
| 3315 else if (argnum == nargs - 1) /* last arg? */ | |
| 3316 RETURN_UNGCPRO (val); | |
| 3317 else | |
| 3318 { | |
| 3319 args[argnum] = wrong_type_argument (Qlistp, val); | |
| 3320 goto retry; | |
| 3321 } | |
| 3322 } | |
| 3323 RETURN_UNGCPRO (Qnil); /* No non-nil args provided. */ | |
| 3324 } | |
| 3325 | |
| 3326 | |
| 434 | 3327 /* This is the guts of several mapping functions. |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3328 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3329 Call FUNCTION CALL_COUNT times, with NSEQUENCES arguments each time, |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3330 taking the elements from SEQUENCES. If VALS is non-NULL, store the |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3331 results into VALS, a C array of Lisp_Objects; else, if LISP_VALS is |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3332 non-nil, store the results into LISP_VALS, a sequence with sufficient |
|
5034
1b96882bdf37
Fix a multiple-value bug, mapcarX; correct a comment and a label name.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5002
diff
changeset
|
3333 room for CALL_COUNT results (but see the documentation of SOME_OR_EVERY.) |
|
1b96882bdf37
Fix a multiple-value bug, mapcarX; correct a comment and a label name.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5002
diff
changeset
|
3334 Else, do not accumulate any result. |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3335 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3336 If VALS is non-NULL, NSEQUENCES is one, and SEQUENCES[0] is a cons, |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3337 mapcarX will store the elements of SEQUENCES[0] in stack and GCPRO them, |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3338 so FUNCTION cannot insert a non-cons into SEQUENCES[0] and throw off |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3339 mapcarX. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3340 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3341 Otherwise, mapcarX signals a wrong-type-error if it encounters a |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3342 non-cons, non-array when traversing SEQUENCES. Common Lisp specifies in |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3343 MAPPING-DESTRUCTIVE-INTERACTION that it is an error when FUNCTION |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3344 destructively modifies SEQUENCES in a way that might affect the ongoing |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3345 traversal operation. |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3346 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3347 If SOME_OR_EVERY is SOME_OR_EVERY_SOME, return the (possibly multiple) |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3348 values given by FUNCTION the first time it is non-nil, and abandon the |
|
5034
1b96882bdf37
Fix a multiple-value bug, mapcarX; correct a comment and a label name.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5002
diff
changeset
|
3349 iterations. LISP_VALS must be a cons, and the return value will be |
|
1b96882bdf37
Fix a multiple-value bug, mapcarX; correct a comment and a label name.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5002
diff
changeset
|
3350 stored in its car. If SOME_OR_EVERY is SOME_OR_EVERY_EVERY, store Qnil |
|
1b96882bdf37
Fix a multiple-value bug, mapcarX; correct a comment and a label name.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5002
diff
changeset
|
3351 in the car of LISP_VALS if FUNCTION gives nil; otherwise leave it |
|
1b96882bdf37
Fix a multiple-value bug, mapcarX; correct a comment and a label name.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5002
diff
changeset
|
3352 alone. */ |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3353 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3354 #define SOME_OR_EVERY_NEITHER 0 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3355 #define SOME_OR_EVERY_SOME 1 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3356 #define SOME_OR_EVERY_EVERY 2 |
| 428 | 3357 |
| 3358 static void | |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3359 mapcarX (Elemcount call_count, Lisp_Object *vals, Lisp_Object lisp_vals, |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3360 Lisp_Object function, int nsequences, Lisp_Object *sequences, |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3361 int some_or_every) |
| 428 | 3362 { |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3363 Lisp_Object called, *args; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3364 struct gcpro gcpro1, gcpro2; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3365 int i, j; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3366 enum lrecord_type lisp_vals_type; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3367 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3368 assert (LRECORDP (lisp_vals)); |
| 4999 | 3369 lisp_vals_type = (enum lrecord_type) XRECORD_LHEADER (lisp_vals)->type; |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3370 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3371 args = alloca_array (Lisp_Object, nsequences + 1); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3372 args[0] = function; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3373 for (i = 1; i <= nsequences; ++i) |
| 428 | 3374 { |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3375 args[i] = Qnil; |
| 428 | 3376 } |
| 3377 | |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3378 if (vals != NULL) |
| 428 | 3379 { |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3380 GCPRO2 (args[0], vals[0]); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3381 gcpro1.nvars = nsequences + 1; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3382 gcpro2.nvars = 0; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3383 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3384 else |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3385 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3386 GCPRO1 (args[0]); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3387 gcpro1.nvars = nsequences + 1; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3388 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3389 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3390 /* Be extra nice in the event that we've been handed one list and one |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3391 only; make it possible for FUNCTION to set cdrs not yet processed to |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3392 non-cons, non-nil objects without ill-effect, if we have been handed |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3393 the stack space to do that. */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3394 if (vals != NULL && 1 == nsequences && CONSP (sequences[0])) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3395 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3396 Lisp_Object lst = sequences[0]; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3397 Lisp_Object *val = vals; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3398 for (i = 0; i < call_count; ++i) |
| 434 | 3399 { |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3400 *val++ = XCAR (lst); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3401 lst = XCDR (lst); |
| 428 | 3402 } |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3403 gcpro2.nvars = call_count; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3404 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3405 for (i = 0; i < call_count; ++i) |
| 428 | 3406 { |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3407 args[1] = vals[i]; |
|
5034
1b96882bdf37
Fix a multiple-value bug, mapcarX; correct a comment and a label name.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5002
diff
changeset
|
3408 vals[i] = IGNORE_MULTIPLE_VALUES (Ffuncall (nsequences + 1, args)); |
| 428 | 3409 } |
| 3410 } | |
| 3411 else | |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3412 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3413 Binbyte *sequence_types = alloca_array (Binbyte, nsequences); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3414 for (j = 0; j < nsequences; ++j) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3415 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3416 sequence_types[j] = XRECORD_LHEADER (sequences[j])->type; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3417 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3418 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3419 for (i = 0; i < call_count; ++i) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3420 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3421 for (j = 0; j < nsequences; ++j) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3422 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3423 switch (sequence_types[j]) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3424 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3425 case lrecord_type_cons: |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3426 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3427 if (!CONSP (sequences[j])) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3428 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3429 /* This means FUNCTION has probably messed |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3430 around with a cons in one of the sequences, |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3431 since we checked the type |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3432 (CHECK_SEQUENCE()) and the length and |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3433 structure (with Flength()) correctly in our |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3434 callers. */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3435 dead_wrong_type_argument (Qconsp, sequences[j]); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3436 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3437 args[j + 1] = XCAR (sequences[j]); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3438 sequences[j] = XCDR (sequences[j]); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3439 break; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3440 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3441 case lrecord_type_vector: |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3442 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3443 args[j + 1] = XVECTOR_DATA (sequences[j])[i]; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3444 break; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3445 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3446 case lrecord_type_string: |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3447 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3448 args[j + 1] = make_char (string_ichar (sequences[j], i)); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3449 break; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3450 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3451 case lrecord_type_bit_vector: |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3452 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3453 args[j + 1] |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3454 = make_int (bit_vector_bit (XBIT_VECTOR (sequences[j]), |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3455 i)); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3456 break; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3457 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3458 default: |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3459 ABORT(); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3460 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3461 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3462 called = Ffuncall (nsequences + 1, args); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3463 if (vals != NULL) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3464 { |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3465 vals[i] = IGNORE_MULTIPLE_VALUES (called); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3466 gcpro2.nvars += 1; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3467 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3468 else |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3469 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3470 switch (lisp_vals_type) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3471 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3472 case lrecord_type_symbol: |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3473 break; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3474 case lrecord_type_cons: |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3475 { |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3476 if (SOME_OR_EVERY_NEITHER == some_or_every) |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3477 { |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3478 called = IGNORE_MULTIPLE_VALUES (called); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3479 if (!CONSP (lisp_vals)) |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3480 { |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3481 /* If FUNCTION has inserted a non-cons non-nil |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3482 cdr into the list before we've processed the |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3483 relevant part, error. */ |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3484 dead_wrong_type_argument (Qconsp, lisp_vals); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3485 } |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3486 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3487 XSETCAR (lisp_vals, called); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3488 lisp_vals = XCDR (lisp_vals); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3489 break; |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3490 } |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3491 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3492 if (SOME_OR_EVERY_SOME == some_or_every) |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3493 { |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3494 if (!NILP (IGNORE_MULTIPLE_VALUES (called))) |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3495 { |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3496 XCAR (lisp_vals) = called; |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3497 UNGCPRO; |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3498 return; |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3499 } |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3500 break; |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3501 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3502 |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3503 if (SOME_OR_EVERY_EVERY == some_or_every) |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3504 { |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3505 called = IGNORE_MULTIPLE_VALUES (called); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3506 if (NILP (called)) |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3507 { |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3508 XCAR (lisp_vals) = Qnil; |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3509 UNGCPRO; |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3510 return; |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3511 } |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3512 break; |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3513 } |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3514 |
|
5034
1b96882bdf37
Fix a multiple-value bug, mapcarX; correct a comment and a label name.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5002
diff
changeset
|
3515 goto bad_some_or_every_flag; |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3516 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3517 case lrecord_type_vector: |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3518 { |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3519 called = IGNORE_MULTIPLE_VALUES (called); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3520 i < XVECTOR_LENGTH (lisp_vals) ? |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3521 (XVECTOR_DATA (lisp_vals)[i] = called) : |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3522 /* Let #'aset error. */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3523 Faset (lisp_vals, make_int (i), called); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3524 break; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3525 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3526 case lrecord_type_string: |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3527 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3528 /* If this ever becomes a code hotspot, we can keep |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3529 around pointers into the data of the string, checking |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3530 each time that it hasn't been relocated. */ |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3531 called = IGNORE_MULTIPLE_VALUES (called); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3532 Faset (lisp_vals, make_int (i), called); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3533 break; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3534 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3535 case lrecord_type_bit_vector: |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3536 { |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3537 called = IGNORE_MULTIPLE_VALUES (called); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3538 (BITP (called) && |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3539 i < bit_vector_length (XBIT_VECTOR (lisp_vals))) ? |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3540 set_bit_vector_bit (XBIT_VECTOR (lisp_vals), i, |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3541 XINT (called)) : |
|
5002
0cd784a6ec44
fix some compile bugs of Aidan's
Ben Wing <ben@xemacs.org>
parents:
5001
diff
changeset
|
3542 (void) Faset (lisp_vals, make_int (i), called); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3543 break; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3544 } |
|
5034
1b96882bdf37
Fix a multiple-value bug, mapcarX; correct a comment and a label name.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5002
diff
changeset
|
3545 bad_some_or_every_flag: |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3546 default: |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3547 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3548 ABORT(); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3549 break; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3550 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3551 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3552 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3553 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3554 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3555 UNGCPRO; |
| 428 | 3556 } |
| 3557 | |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3558 DEFUN ("mapconcat", Fmapconcat, 3, MANY, 0, /* |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3559 Call FUNCTION on each element of SEQUENCE, and concat results to a string. |
| 751 | 3560 Between each pair of results, insert SEPARATOR. |
| 3561 | |
| 3562 Each result, and SEPARATOR, should be strings. Thus, using " " as SEPARATOR | |
| 3563 results in spaces between the values returned by FUNCTION. SEQUENCE itself | |
| 3564 may be a list, a vector, a bit vector, or a string. | |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3565 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3566 With optional SEQUENCES, call FUNCTION each time with as many arguments as |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3567 there are SEQUENCES, plus one for the element from SEQUENCE. One element |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3568 from each sequence will be used each time FUNCTION is called, and |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3569 `mapconcat' will give up once the shortest sequence is exhausted. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3570 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3571 arguments: (FUNCTION SEQUENCE SEPARATOR &rest SEQUENCES) |
| 428 | 3572 */ |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3573 (int nargs, Lisp_Object *args)) |
| 428 | 3574 { |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3575 Lisp_Object function = args[0]; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3576 Lisp_Object sequence = args[1]; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3577 Lisp_Object separator = args[2]; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3578 Elemcount len = EMACS_INT_MAX; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3579 Lisp_Object *args0; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3580 EMACS_INT i, nargs0; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3581 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3582 args[2] = sequence; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3583 args[1] = separator; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3584 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3585 for (i = 2; i < nargs; ++i) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3586 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3587 CHECK_SEQUENCE (args[i]); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3588 len = min (len, XINT (Flength (args[i]))); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3589 } |
| 428 | 3590 |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
3591 if (len == 0) return build_ascstring (""); |
| 428 | 3592 |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3593 nargs0 = len + len - 1; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3594 args0 = alloca_array (Lisp_Object, nargs0); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3595 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3596 /* Special-case this, it's very common and doesn't require any |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3597 funcalls. Upside of doing it here, instead of cl-macs.el: no consing, |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3598 apart from the final string, we allocate everything on the stack. */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3599 if (EQ (function, Qidentity) && 3 == nargs && CONSP (sequence)) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3600 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3601 for (i = 0; i < len; ++i) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3602 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3603 args0[i] = XCAR (sequence); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3604 sequence = XCDR (sequence); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3605 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3606 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3607 else |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3608 { |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3609 mapcarX (len, args0, Qnil, function, nargs - 2, args + 2, |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3610 SOME_OR_EVERY_NEITHER); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3611 } |
| 428 | 3612 |
| 3613 for (i = len - 1; i >= 0; i--) | |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3614 args0[i + i] = args0[i]; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3615 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3616 for (i = 1; i < nargs0; i += 2) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3617 args0[i] = separator; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3618 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3619 return Fconcat (nargs0, args0); |
| 428 | 3620 } |
| 3621 | |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3622 DEFUN ("mapcar*", FmapcarX, 2, MANY, 0, /* |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3623 Call FUNCTION on each element of SEQUENCE; return a list of the results. |
| 434 | 3624 The result is a list of the same length as SEQUENCE. |
| 428 | 3625 SEQUENCE may be a list, a vector, a bit vector, or a string. |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3626 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3627 With optional SEQUENCES, call FUNCTION each time with as many arguments as |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3628 there are SEQUENCES, plus one for the element from SEQUENCE. One element |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3629 from each sequence will be used each time FUNCTION is called, and `mapcar' |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3630 stops calling FUNCTION once the shortest sequence is exhausted. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3631 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3632 arguments: (FUNCTION SEQUENCE &rest SEQUENCES) |
| 428 | 3633 */ |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3634 (int nargs, Lisp_Object *args)) |
| 428 | 3635 { |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3636 Lisp_Object function = args[0]; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3637 Elemcount len = EMACS_INT_MAX; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3638 Lisp_Object *args0; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3639 int i; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3640 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3641 for (i = 1; i < nargs; ++i) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3642 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3643 CHECK_SEQUENCE (args[i]); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3644 len = min (len, XINT (Flength (args[i]))); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3645 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3646 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3647 args0 = alloca_array (Lisp_Object, len); |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3648 mapcarX (len, args0, Qnil, function, nargs - 1, args + 1, |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3649 SOME_OR_EVERY_NEITHER); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3650 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3651 return Flist ((int) len, args0); |
| 428 | 3652 } |
| 3653 | |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3654 DEFUN ("mapvector", Fmapvector, 2, MANY, 0, /* |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3655 Call FUNCTION on each element of SEQUENCE; return a vector of the results. |
| 428 | 3656 The result is a vector of the same length as SEQUENCE. |
| 434 | 3657 SEQUENCE may be a list, a vector, a bit vector, or a string. |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3658 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3659 With optional SEQUENCES, call FUNCTION each time with as many arguments as |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3660 there are SEQUENCES, plus one for the element from SEQUENCE. One element |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3661 from each sequence will be used each time FUNCTION is called, and |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3662 `mapvector' stops calling FUNCTION once the shortest sequence is exhausted. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3663 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3664 arguments: (FUNCTION SEQUENCE &rest SEQUENCES) |
| 428 | 3665 */ |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3666 (int nargs, Lisp_Object *args)) |
| 428 | 3667 { |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3668 Lisp_Object function = args[0]; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3669 Elemcount len = EMACS_INT_MAX; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3670 Lisp_Object result; |
| 428 | 3671 struct gcpro gcpro1; |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3672 int i; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3673 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3674 for (i = 1; i < nargs; ++i) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3675 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3676 CHECK_SEQUENCE (args[i]); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3677 len = min (len, XINT (Flength (args[i]))); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3678 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3679 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3680 result = make_vector (len, Qnil); |
| 428 | 3681 GCPRO1 (result); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3682 /* Don't pass result as the lisp_object argument, we want mapcarX to protect |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3683 a single list argument's elements from being garbage-collected. */ |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3684 mapcarX (len, XVECTOR_DATA (result), Qnil, function, nargs - 1, args +1, |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3685 SOME_OR_EVERY_NEITHER); |
| 428 | 3686 UNGCPRO; |
| 3687 | |
| 3688 return result; | |
| 3689 } | |
| 3690 | |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3691 DEFUN ("mapcan", Fmapcan, 2, MANY, 0, /* |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3692 Call FUNCTION on each element of SEQUENCE; chain the results together. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3693 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3694 FUNCTION must normally return a list; the results will be concatenated |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3695 together using `nconc'. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3696 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3697 With optional SEQUENCES, call FUNCTION each time with as many arguments as |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3698 there are SEQUENCES, plus one for the element from SEQUENCE. One element |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3699 from each sequence will be used each time FUNCTION is called, and |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3700 `mapcan' stops calling FUNCTION once the shortest sequence is exhausted. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3701 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3702 arguments: (FUNCTION SEQUENCE &rest SEQUENCES) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3703 */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3704 (int nargs, Lisp_Object *args)) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3705 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3706 Lisp_Object function = args[0], nconcing; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3707 Elemcount len = EMACS_INT_MAX; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3708 Lisp_Object *args0; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3709 struct gcpro gcpro1; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3710 int i; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3711 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3712 for (i = 1; i < nargs; ++i) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3713 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3714 CHECK_SEQUENCE (args[i]); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3715 len = min (len, XINT (Flength (args[i]))); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3716 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3717 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3718 args0 = alloca_array (Lisp_Object, len + 1); |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3719 mapcarX (len, args0 + 1, Qnil, function, nargs - 1, args + 1, |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3720 SOME_OR_EVERY_NEITHER); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3721 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3722 if (len < 2) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3723 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3724 return len ? args0[1] : Qnil; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3725 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3726 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3727 /* bytecode_nconc2 can signal and return, we need to GCPRO the args, since |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3728 mapcarX is no longer doing this for us. */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3729 args0[0] = Fcons (Qnil, Qnil); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3730 GCPRO1 (args0[0]); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3731 gcpro1.nvars = len + 1; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3732 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3733 for (i = 0; i < len; ++i) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3734 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3735 nconcing = bytecode_nconc2 (args0 + i); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3736 args0[i + 1] = nconcing; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3737 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3738 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3739 RETURN_UNGCPRO (XCDR (nconcing)); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3740 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3741 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3742 DEFUN ("mapc", Fmapc, 2, MANY, 0, /* |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3743 Call FUNCTION on each element of SEQUENCE. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3744 |
| 428 | 3745 SEQUENCE may be a list, a vector, a bit vector, or a string. |
| 3746 This function is like `mapcar' but does not accumulate the results, | |
| 3747 which is more efficient if you do not use the results. | |
| 3748 | |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3749 With optional SEQUENCES, call FUNCTION each time with as many arguments as |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3750 there are SEQUENCES, plus one for the elements from SEQUENCE. One element |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3751 from each sequence will be used each time FUNCTION is called, and |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3752 `mapc' stops calling FUNCTION once the shortest sequence is exhausted. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3753 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3754 Return SEQUENCE. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3755 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3756 arguments: (FUNCTION SEQUENCE &rest SEQUENCES) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3757 */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3758 (int nargs, Lisp_Object *args)) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3759 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3760 Elemcount len = EMACS_INT_MAX; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3761 Lisp_Object sequence = args[1]; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3762 struct gcpro gcpro1; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3763 int i; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3764 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3765 for (i = 1; i < nargs; ++i) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3766 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3767 CHECK_SEQUENCE (args[i]); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3768 len = min (len, XINT (Flength (args[i]))); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3769 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3770 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3771 /* We need to GCPRO sequence, because mapcarX will modify the |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3772 elements of the args array handed to it, and this may involve |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3773 elements of sequence getting garbage collected. */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3774 GCPRO1 (sequence); |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3775 mapcarX (len, NULL, Qnil, args[0], nargs - 1, args + 1, |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3776 SOME_OR_EVERY_NEITHER); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3777 RETURN_UNGCPRO (sequence); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3778 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3779 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3780 DEFUN ("map", Fmap, 3, MANY, 0, /* |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3781 Map FUNCTION across one or more sequences, returning a sequence. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3782 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3783 TYPE is the sequence type to return, FUNCTION is the function, SEQUENCE is |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3784 the first argument sequence, SEQUENCES are the other argument sequences. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3785 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3786 FUNCTION will be called with (1+ (length SEQUENCES)) arguments, and must be |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3787 capable of accepting this number of arguments. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3788 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3789 Certain TYPEs are recognised internally by `map', but others are not, and |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3790 `coerce' may throw an error on an attempt to convert to a TYPE it does not |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3791 understand. A null TYPE means do not accumulate any values. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3792 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3793 arguments: (TYPE FUNCTION SEQUENCE &rest SEQUENCES) |
| 428 | 3794 */ |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3795 (int nargs, Lisp_Object *args)) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3796 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3797 Lisp_Object type = args[0]; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3798 Lisp_Object function = args[1]; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3799 Lisp_Object result = Qnil; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3800 Lisp_Object *args0 = NULL; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3801 Elemcount len = EMACS_INT_MAX; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3802 int i; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3803 struct gcpro gcpro1; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3804 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3805 for (i = 2; i < nargs; ++i) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3806 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3807 CHECK_SEQUENCE (args[i]); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3808 len = min (len, XINT (Flength (args[i]))); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3809 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3810 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3811 if (!NILP (type)) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3812 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3813 args0 = alloca_array (Lisp_Object, len); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3814 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3815 |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3816 mapcarX (len, args0, Qnil, function, nargs - 2, args + 2, |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3817 SOME_OR_EVERY_NEITHER); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3818 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3819 if (EQ (type, Qnil)) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3820 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3821 return result; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3822 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3823 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3824 if (EQ (type, Qvector) || EQ (type, Qarray)) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3825 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3826 result = Fvector (len, args0); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3827 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3828 else if (EQ (type, Qstring)) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3829 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3830 result = Fstring (len, args0); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3831 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3832 else if (EQ (type, Qlist)) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3833 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3834 result = Flist (len, args0); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3835 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3836 else if (EQ (type, Qbit_vector)) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3837 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3838 result = Fbit_vector (len, args0); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3839 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3840 else |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3841 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3842 result = Flist (len, args0); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3843 GCPRO1 (result); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3844 result = call2 (Qcoerce, result, type); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3845 UNGCPRO; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3846 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3847 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3848 return result; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3849 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3850 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3851 DEFUN ("map-into", Fmap_into, 2, MANY, 0, /* |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3852 Modify RESULT-SEQUENCE using the return values of FUNCTION on SEQUENCES. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3853 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3854 RESULT-SEQUENCE and SEQUENCES can be lists or arrays. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3855 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3856 FUNCTION must accept at least as many arguments as there are SEQUENCES |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3857 \(possibly zero). If RESULT-SEQUENCE and the elements of SEQUENCES are not |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3858 the same length, stop when the shortest is exhausted; any elements of |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3859 RESULT-SEQUENCE beyond that are unmodified. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3860 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3861 Return RESULT-SEQUENCE. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3862 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3863 arguments: (RESULT-SEQUENCE FUNCTION &rest SEQUENCES) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3864 */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3865 (int nargs, Lisp_Object *args)) |
| 428 | 3866 { |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3867 Elemcount len = EMACS_INT_MAX; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3868 Lisp_Object result_sequence = args[0]; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3869 Lisp_Object function = args[1]; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3870 int i; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3871 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3872 args[0] = function; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3873 args[1] = result_sequence; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3874 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3875 for (i = 1; i < nargs; ++i) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3876 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3877 CHECK_SEQUENCE (args[i]); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3878 len = min (len, XINT (Flength (args[i]))); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3879 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3880 |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3881 mapcarX (len, NULL, result_sequence, function, nargs - 2, args + 2, |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3882 SOME_OR_EVERY_NEITHER); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3883 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3884 return result_sequence; |
| 428 | 3885 } |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3886 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3887 DEFUN ("some", Fsome, 2, MANY, 0, /* |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3888 Return true if PREDICATE gives non-nil for an element of SEQUENCE. |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3889 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3890 If so, return the value (possibly multiple) given by PREDICATE. |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3891 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3892 With optional SEQUENCES, call PREDICATE each time with as many arguments as |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3893 there are SEQUENCES (plus one for the element from SEQUENCE). |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3894 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3895 arguments: (PREDICATE SEQUENCE &rest SEQUENCES) |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3896 */ |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3897 (int nargs, Lisp_Object *args)) |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3898 { |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3899 Lisp_Object result_box = Fcons (Qnil, Qnil); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3900 struct gcpro gcpro1; |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3901 Elemcount len = EMACS_INT_MAX; |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3902 int i; |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3903 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3904 GCPRO1 (result_box); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3905 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3906 for (i = 1; i < nargs; ++i) |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3907 { |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3908 CHECK_SEQUENCE (args[i]); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3909 len = min (len, XINT (Flength (args[i]))); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3910 } |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3911 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3912 mapcarX (len, NULL, result_box, args[0], nargs - 1, args +1, |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3913 SOME_OR_EVERY_SOME); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3914 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3915 RETURN_UNGCPRO (XCAR (result_box)); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3916 } |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3917 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3918 DEFUN ("every", Fevery, 2, MANY, 0, /* |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3919 Return true if PREDICATE is true of every element of SEQUENCE. |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3920 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3921 With optional SEQUENCES, call PREDICATE each time with as many arguments as |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3922 there are SEQUENCES (plus one for the element from SEQUENCE). |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3923 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3924 In contrast to `some', `every' never returns multiple values. |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3925 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3926 arguments: (PREDICATE SEQUENCE &rest SEQUENCES) |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3927 */ |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3928 (int nargs, Lisp_Object *args)) |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3929 { |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3930 Lisp_Object result_box = Fcons (Qt, Qnil); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3931 struct gcpro gcpro1; |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3932 Elemcount len = EMACS_INT_MAX; |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3933 int i; |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3934 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3935 GCPRO1 (result_box); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3936 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3937 for (i = 1; i < nargs; ++i) |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3938 { |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3939 CHECK_SEQUENCE (args[i]); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3940 len = min (len, XINT (Flength (args[i]))); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3941 } |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3942 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3943 mapcarX (len, NULL, result_box, args[0], nargs - 1, args +1, |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3944 SOME_OR_EVERY_EVERY); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3945 |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3946 RETURN_UNGCPRO (XCAR (result_box)); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
3947 } |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3948 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3949 /* Call FUNCTION with NLISTS arguments repeatedly, each Nth argument |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3950 corresponding to the result of calling (nthcdr ITERATION-COUNT LISTS[N]), |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3951 until that #'nthcdr expression gives nil for some element of LISTS. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3952 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3953 If MAPLP is zero, return LISTS[0]. Otherwise, return a list of the return |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3954 values from FUNCTION; if NCONCP is non-zero, nconc them together. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3955 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3956 In contrast to mapcarX, we don't require our callers to check LISTS for |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3957 well-formedness, we signal wrong-type-argument if it's not a list, or |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3958 circular-list if it's circular. */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3959 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3960 static Lisp_Object |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3961 maplist (Lisp_Object function, int nlists, Lisp_Object *lists, int maplp, |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3962 int nconcp) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3963 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3964 Lisp_Object result = maplp ? lists[0] : Fcons (Qnil, Qnil), funcalled; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3965 Lisp_Object nconcing[2], accum = result, *args; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3966 struct gcpro gcpro1, gcpro2, gcpro3; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3967 int i, j, continuing = (nlists > 0), called_count = 0; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3968 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3969 args = alloca_array (Lisp_Object, nlists + 1); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3970 args[0] = function; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3971 for (i = 1; i <= nlists; ++i) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3972 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3973 args[i] = Qnil; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3974 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3975 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3976 if (nconcp) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3977 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3978 nconcing[0] = result; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3979 nconcing[1] = Qnil; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3980 GCPRO3 (args[0], nconcing[0], result); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3981 gcpro1.nvars = 1; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3982 gcpro2.nvars = 2; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3983 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3984 else |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3985 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3986 GCPRO2 (args[0], result); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3987 gcpro1.nvars = 1; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3988 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3989 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3990 while (continuing) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3991 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3992 for (j = 0; j < nlists; ++j) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3993 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3994 if (CONSP (lists[j])) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3995 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3996 args[j + 1] = lists[j]; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3997 lists[j] = XCDR (lists[j]); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3998 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3999 else if (NILP (lists[j])) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4000 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4001 continuing = 0; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4002 break; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4003 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4004 else |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4005 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4006 dead_wrong_type_argument (Qlistp, lists[j]); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4007 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4008 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4009 if (!continuing) break; |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
4010 funcalled = IGNORE_MULTIPLE_VALUES (Ffuncall (nlists + 1, args)); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4011 if (!maplp) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4012 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4013 if (nconcp) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4014 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4015 /* This order of calls means we check that each list is |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4016 well-formed once and once only. The last result does |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4017 not have to be a list. */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4018 nconcing[1] = funcalled; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4019 nconcing[0] = bytecode_nconc2 (nconcing); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4020 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4021 else |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4022 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4023 /* Add to the end, avoiding the need to call nreverse |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4024 once we're done: */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4025 XSETCDR (accum, Fcons (funcalled, Qnil)); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4026 accum = XCDR (accum); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4027 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4028 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4029 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4030 if (++called_count % CIRCULAR_LIST_SUSPICION_LENGTH) continue; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4031 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4032 for (j = 0; j < nlists; ++j) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4033 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4034 EXTERNAL_LIST_LOOP_1 (lists[j]) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4035 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4036 /* Just check the lists aren't circular, using the |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4037 EXTERNAL_LIST_LOOP_1 macro. */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
4038 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4039 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4040 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4041 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4042 if (!maplp) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4043 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4044 result = XCDR (result); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4045 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4046 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4047 RETURN_UNGCPRO (result); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4048 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4049 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4050 DEFUN ("maplist", Fmaplist, 2, MANY, 0, /* |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
4051 Call FUNCTION on each sublist of LIST and LISTS. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4052 Like `mapcar', except applies to lists and their cdr's rather than to |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
4053 the elements themselves." |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
4054 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4055 arguments: (FUNCTION LIST &rest LISTS) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4056 */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4057 (int nargs, Lisp_Object *args)) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4058 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4059 return maplist (args[0], nargs - 1, args + 1, 0, 0); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4060 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4061 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4062 DEFUN ("mapl", Fmapl, 2, MANY, 0, /* |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4063 Like `maplist', but do not accumulate values returned by the function. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4064 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4065 arguments: (FUNCTION LIST &rest LISTS) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4066 */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4067 (int nargs, Lisp_Object *args)) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4068 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4069 return maplist (args[0], nargs - 1, args + 1, 1, 0); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4070 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4071 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4072 DEFUN ("mapcon", Fmapcon, 2, MANY, 0, /* |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4073 Like `maplist', but chains together the values returned by FUNCTION. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4074 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4075 FUNCTION must return a list (unless it happens to be the last |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4076 iteration); the results will be concatenated together using `nconc'. |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4077 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4078 arguments: (FUNCTION LIST &rest LISTS) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4079 */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4080 (int nargs, Lisp_Object *args)) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4081 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4082 return maplist (args[0], nargs - 1, args + 1, 0, 1); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4083 } |
| 428 | 4084 |
| 771 | 4085 /* Extra random functions */ |
| 442 | 4086 |
| 4087 DEFUN ("replace-list", Freplace_list, 2, 2, 0, /* | |
| 4088 Destructively replace the list OLD with NEW. | |
| 4089 This is like (copy-sequence NEW) except that it reuses the | |
| 4090 conses in OLD as much as possible. If OLD and NEW are the same | |
| 4091 length, no consing will take place. | |
| 4092 */ | |
| 3025 | 4093 (old, new_)) |
| 442 | 4094 { |
| 2367 | 4095 Lisp_Object oldtail = old, prevoldtail = Qnil; |
| 4096 | |
| 3025 | 4097 EXTERNAL_LIST_LOOP_2 (elt, new_) |
| 442 | 4098 { |
| 4099 if (!NILP (oldtail)) | |
| 4100 { | |
| 4101 CHECK_CONS (oldtail); | |
| 2367 | 4102 XCAR (oldtail) = elt; |
| 442 | 4103 } |
| 4104 else if (!NILP (prevoldtail)) | |
| 4105 { | |
| 2367 | 4106 XCDR (prevoldtail) = Fcons (elt, Qnil); |
| 442 | 4107 prevoldtail = XCDR (prevoldtail); |
| 4108 } | |
| 4109 else | |
| 2367 | 4110 old = oldtail = Fcons (elt, Qnil); |
| 442 | 4111 |
| 4112 if (!NILP (oldtail)) | |
| 4113 { | |
| 4114 prevoldtail = oldtail; | |
| 4115 oldtail = XCDR (oldtail); | |
| 4116 } | |
| 4117 } | |
| 4118 | |
| 4119 if (!NILP (prevoldtail)) | |
| 4120 XCDR (prevoldtail) = Qnil; | |
| 4121 else | |
| 4122 old = Qnil; | |
| 4123 | |
| 4124 return old; | |
| 4125 } | |
| 4126 | |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4127 |
| 771 | 4128 Lisp_Object |
| 2367 | 4129 add_suffix_to_symbol (Lisp_Object symbol, const Ascbyte *ascii_string) |
| 771 | 4130 { |
| 4131 return Fintern (concat2 (Fsymbol_name (symbol), | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
4132 build_ascstring (ascii_string)), |
| 771 | 4133 Qnil); |
| 4134 } | |
| 4135 | |
| 4136 Lisp_Object | |
| 2367 | 4137 add_prefix_to_symbol (const Ascbyte *ascii_string, Lisp_Object symbol) |
| 771 | 4138 { |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
4139 return Fintern (concat2 (build_ascstring (ascii_string), |
| 771 | 4140 Fsymbol_name (symbol)), |
| 4141 Qnil); | |
| 4142 } | |
| 4143 | |
| 442 | 4144 |
| 428 | 4145 /* #### this function doesn't belong in this file! */ |
| 4146 | |
| 442 | 4147 #ifdef HAVE_GETLOADAVG |
| 4148 #ifdef HAVE_SYS_LOADAVG_H | |
| 4149 #include <sys/loadavg.h> | |
| 4150 #endif | |
| 4151 #else | |
| 4152 int getloadavg (double loadavg[], int nelem); /* Defined in getloadavg.c */ | |
| 4153 #endif | |
| 4154 | |
| 428 | 4155 DEFUN ("load-average", Fload_average, 0, 1, 0, /* |
| 4156 Return list of 1 minute, 5 minute and 15 minute load averages. | |
| 4157 Each of the three load averages is multiplied by 100, | |
| 4158 then converted to integer. | |
| 4159 | |
| 4160 When USE-FLOATS is non-nil, floats will be used instead of integers. | |
| 4161 These floats are not multiplied by 100. | |
| 4162 | |
| 4163 If the 5-minute or 15-minute load averages are not available, return a | |
| 4164 shortened list, containing only those averages which are available. | |
| 4165 | |
| 4166 On some systems, this won't work due to permissions on /dev/kmem, | |
| 4167 in which case you can't use this. | |
| 4168 */ | |
| 4169 (use_floats)) | |
| 4170 { | |
| 4171 double load_ave[3]; | |
| 4172 int loads = getloadavg (load_ave, countof (load_ave)); | |
| 4173 Lisp_Object ret = Qnil; | |
| 4174 | |
| 4175 if (loads == -2) | |
| 563 | 4176 signal_error (Qunimplemented, |
| 4177 "load-average not implemented for this operating system", | |
| 4178 Qunbound); | |
| 428 | 4179 else if (loads < 0) |
| 563 | 4180 invalid_operation ("Could not get load-average", lisp_strerror (errno)); |
| 428 | 4181 |
| 4182 while (loads-- > 0) | |
| 4183 { | |
| 4184 Lisp_Object load = (NILP (use_floats) ? | |
| 4185 make_int ((int) (100.0 * load_ave[loads])) | |
| 4186 : make_float (load_ave[loads])); | |
| 4187 ret = Fcons (load, ret); | |
| 4188 } | |
| 4189 return ret; | |
| 4190 } | |
| 4191 | |
| 4192 | |
| 4193 Lisp_Object Vfeatures; | |
| 4194 | |
| 4195 DEFUN ("featurep", Ffeaturep, 1, 1, 0, /* | |
| 4196 Return non-nil if feature FEXP is present in this Emacs. | |
| 4197 Use this to conditionalize execution of lisp code based on the | |
| 4198 presence or absence of emacs or environment extensions. | |
| 4199 FEXP can be a symbol, a number, or a list. | |
| 4200 If it is a symbol, that symbol is looked up in the `features' variable, | |
| 4201 and non-nil will be returned if found. | |
| 4202 If it is a number, the function will return non-nil if this Emacs | |
| 4203 has an equal or greater version number than FEXP. | |
| 4204 If it is a list whose car is the symbol `and', it will return | |
| 4205 non-nil if all the features in its cdr are non-nil. | |
| 4206 If it is a list whose car is the symbol `or', it will return non-nil | |
| 4207 if any of the features in its cdr are non-nil. | |
| 4208 If it is a list whose car is the symbol `not', it will return | |
| 4209 non-nil if the feature is not present. | |
| 4210 | |
| 4211 Examples: | |
| 4212 | |
| 4213 (featurep 'xemacs) | |
| 4214 => ; Non-nil on XEmacs. | |
| 4215 | |
| 4216 (featurep '(and xemacs gnus)) | |
| 4217 => ; Non-nil on XEmacs with Gnus loaded. | |
| 4218 | |
| 4219 (featurep '(or tty-frames (and emacs 19.30))) | |
| 4220 => ; Non-nil if this Emacs supports TTY frames. | |
| 4221 | |
| 4222 (featurep '(or (and xemacs 19.15) (and emacs 19.34))) | |
| 4223 => ; Non-nil on XEmacs 19.15 and later, or FSF Emacs 19.34 and later. | |
| 4224 | |
| 442 | 4225 (featurep '(and xemacs 21.02)) |
| 4226 => ; Non-nil on XEmacs 21.2 and later. | |
| 4227 | |
| 428 | 4228 NOTE: The advanced arguments of this function (anything other than a |
| 4229 symbol) are not yet supported by FSF Emacs. If you feel they are useful | |
| 4230 for supporting multiple Emacs variants, lobby Richard Stallman at | |
| 442 | 4231 <bug-gnu-emacs@gnu.org>. |
| 428 | 4232 */ |
| 4233 (fexp)) | |
| 4234 { | |
| 4235 #ifndef FEATUREP_SYNTAX | |
| 4236 CHECK_SYMBOL (fexp); | |
| 4237 return NILP (Fmemq (fexp, Vfeatures)) ? Qnil : Qt; | |
| 4238 #else /* FEATUREP_SYNTAX */ | |
| 4239 static double featurep_emacs_version; | |
| 4240 | |
| 4241 /* Brute force translation from Erik Naggum's lisp function. */ | |
| 4242 if (SYMBOLP (fexp)) | |
| 4243 { | |
| 4244 /* Original definition */ | |
| 4245 return NILP (Fmemq (fexp, Vfeatures)) ? Qnil : Qt; | |
| 4246 } | |
| 4247 else if (INTP (fexp) || FLOATP (fexp)) | |
| 4248 { | |
| 4249 double d = extract_float (fexp); | |
| 4250 | |
| 4251 if (featurep_emacs_version == 0.0) | |
| 4252 { | |
| 4253 featurep_emacs_version = XINT (Vemacs_major_version) + | |
| 4254 (XINT (Vemacs_minor_version) / 100.0); | |
| 4255 } | |
| 4256 return featurep_emacs_version >= d ? Qt : Qnil; | |
| 4257 } | |
| 4258 else if (CONSP (fexp)) | |
| 4259 { | |
| 4260 Lisp_Object tem = XCAR (fexp); | |
| 4261 if (EQ (tem, Qnot)) | |
| 4262 { | |
| 4263 Lisp_Object negate; | |
| 4264 | |
| 4265 tem = XCDR (fexp); | |
| 4266 negate = Fcar (tem); | |
| 4267 if (!NILP (tem)) | |
| 4268 return NILP (call1 (Qfeaturep, negate)) ? Qt : Qnil; | |
| 4269 else | |
| 4270 return Fsignal (Qinvalid_read_syntax, list1 (tem)); | |
| 4271 } | |
| 4272 else if (EQ (tem, Qand)) | |
| 4273 { | |
| 4274 tem = XCDR (fexp); | |
| 4275 /* Use Fcar/Fcdr for error-checking. */ | |
| 4276 while (!NILP (tem) && !NILP (call1 (Qfeaturep, Fcar (tem)))) | |
| 4277 { | |
| 4278 tem = Fcdr (tem); | |
| 4279 } | |
| 4280 return NILP (tem) ? Qt : Qnil; | |
| 4281 } | |
| 4282 else if (EQ (tem, Qor)) | |
| 4283 { | |
| 4284 tem = XCDR (fexp); | |
| 4285 /* Use Fcar/Fcdr for error-checking. */ | |
| 4286 while (!NILP (tem) && NILP (call1 (Qfeaturep, Fcar (tem)))) | |
| 4287 { | |
| 4288 tem = Fcdr (tem); | |
| 4289 } | |
| 4290 return NILP (tem) ? Qnil : Qt; | |
| 4291 } | |
| 4292 else | |
| 4293 { | |
| 4294 return Fsignal (Qinvalid_read_syntax, list1 (XCDR (fexp))); | |
| 4295 } | |
| 4296 } | |
| 4297 else | |
| 4298 { | |
| 4299 return Fsignal (Qinvalid_read_syntax, list1 (fexp)); | |
| 4300 } | |
| 4301 } | |
| 4302 #endif /* FEATUREP_SYNTAX */ | |
| 4303 | |
| 4304 DEFUN ("provide", Fprovide, 1, 1, 0, /* | |
| 4305 Announce that FEATURE is a feature of the current Emacs. | |
| 4306 This function updates the value of the variable `features'. | |
| 4307 */ | |
| 4308 (feature)) | |
| 4309 { | |
| 4310 Lisp_Object tem; | |
| 4311 CHECK_SYMBOL (feature); | |
| 4312 if (!NILP (Vautoload_queue)) | |
| 4313 Vautoload_queue = Fcons (Fcons (Vfeatures, Qnil), Vautoload_queue); | |
| 4314 tem = Fmemq (feature, Vfeatures); | |
| 4315 if (NILP (tem)) | |
| 4316 Vfeatures = Fcons (feature, Vfeatures); | |
| 4317 LOADHIST_ATTACH (Fcons (Qprovide, feature)); | |
| 4318 return feature; | |
| 4319 } | |
| 4320 | |
| 1067 | 4321 DEFUN ("require", Frequire, 1, 3, 0, /* |
| 3842 | 4322 Ensure that FEATURE is present in the Lisp environment. |
| 4323 FEATURE is a symbol naming a collection of resources (functions, etc). | |
| 4324 Optional FILENAME is a library from which to load resources; it defaults to | |
| 4325 the print name of FEATURE. | |
| 4326 Optional NOERROR, if non-nil, causes require to return nil rather than signal | |
| 4327 `file-error' if loading the library fails. | |
| 4328 | |
| 4329 If feature FEATURE is present in `features', update `load-history' to reflect | |
| 4330 the require and return FEATURE. Otherwise, try to load it from a library. | |
| 4331 The normal messages at start and end of loading are suppressed. | |
| 4332 If the library is successfully loaded and it calls `(provide FEATURE)', add | |
| 4333 FEATURE to `features', update `load-history' and return FEATURE. | |
| 4334 If the load succeeds but FEATURE is not provided by the library, signal | |
| 4335 `invalid-state'. | |
| 4336 | |
| 4337 The byte-compiler treats top-level calls to `require' specially, by evaluating | |
| 4338 them at compile time (and then compiling them normally). Thus a library may | |
| 4339 request that definitions that should be inlined such as macros and defsubsts | |
| 4340 be loaded into its compilation environment. Achieving this in other contexts | |
| 4341 requires an explicit \(eval-and-compile ...\) block. | |
| 428 | 4342 */ |
| 1067 | 4343 (feature, filename, noerror)) |
| 428 | 4344 { |
| 4345 Lisp_Object tem; | |
| 4346 CHECK_SYMBOL (feature); | |
| 4347 tem = Fmemq (feature, Vfeatures); | |
| 4348 LOADHIST_ATTACH (Fcons (Qrequire, feature)); | |
| 4349 if (!NILP (tem)) | |
| 4350 return feature; | |
| 4351 else | |
| 4352 { | |
| 4353 int speccount = specpdl_depth (); | |
| 4354 | |
| 4355 /* Value saved here is to be restored into Vautoload_queue */ | |
| 4356 record_unwind_protect (un_autoload, Vautoload_queue); | |
| 4357 Vautoload_queue = Qt; | |
| 4358 | |
| 1067 | 4359 tem = call4 (Qload, NILP (filename) ? Fsymbol_name (feature) : filename, |
| 1261 | 4360 noerror, Qrequire, Qnil); |
| 1067 | 4361 /* If load failed entirely, return nil. */ |
| 4362 if (NILP (tem)) | |
| 4363 return unbind_to_1 (speccount, Qnil); | |
| 428 | 4364 |
| 4365 tem = Fmemq (feature, Vfeatures); | |
| 4366 if (NILP (tem)) | |
| 563 | 4367 invalid_state ("Required feature was not provided", feature); |
| 428 | 4368 |
| 4369 /* Once loading finishes, don't undo it. */ | |
| 4370 Vautoload_queue = Qt; | |
| 771 | 4371 return unbind_to_1 (speccount, feature); |
| 428 | 4372 } |
| 4373 } | |
| 4374 | |
| 4375 /* base64 encode/decode functions. | |
| 4376 | |
| 4377 Originally based on code from GNU recode. Ported to FSF Emacs by | |
| 4378 Lars Magne Ingebrigtsen and Karl Heuer. Ported to XEmacs and | |
| 4379 subsequently heavily hacked by Hrvoje Niksic. */ | |
| 4380 | |
| 4381 #define MIME_LINE_LENGTH 72 | |
| 4382 | |
| 4383 #define IS_ASCII(Character) \ | |
| 4384 ((Character) < 128) | |
| 4385 #define IS_BASE64(Character) \ | |
| 4386 (IS_ASCII (Character) && base64_char_to_value[Character] >= 0) | |
| 4387 | |
| 4388 /* Table of characters coding the 64 values. */ | |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4966
diff
changeset
|
4389 static Ascbyte base64_value_to_char[64] = |
| 428 | 4390 { |
| 4391 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', /* 0- 9 */ | |
| 4392 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', /* 10-19 */ | |
| 4393 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', /* 20-29 */ | |
| 4394 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', /* 30-39 */ | |
| 4395 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', /* 40-49 */ | |
| 4396 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', /* 50-59 */ | |
| 4397 '8', '9', '+', '/' /* 60-63 */ | |
| 4398 }; | |
| 4399 | |
| 4400 /* Table of base64 values for first 128 characters. */ | |
| 4401 static short base64_char_to_value[128] = | |
| 4402 { | |
| 4403 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0- 9 */ | |
| 4404 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 10- 19 */ | |
| 4405 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 20- 29 */ | |
| 4406 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 30- 39 */ | |
| 4407 -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, /* 40- 49 */ | |
| 4408 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, /* 50- 59 */ | |
| 4409 -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, /* 60- 69 */ | |
| 4410 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, /* 70- 79 */ | |
| 4411 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, /* 80- 89 */ | |
| 4412 25, -1, -1, -1, -1, -1, -1, 26, 27, 28, /* 90- 99 */ | |
| 4413 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, /* 100-109 */ | |
| 4414 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, /* 110-119 */ | |
| 4415 49, 50, 51, -1, -1, -1, -1, -1 /* 120-127 */ | |
| 4416 }; | |
| 4417 | |
| 4418 /* The following diagram shows the logical steps by which three octets | |
| 4419 get transformed into four base64 characters. | |
| 4420 | |
| 4421 .--------. .--------. .--------. | |
| 4422 |aaaaaabb| |bbbbcccc| |ccdddddd| | |
| 4423 `--------' `--------' `--------' | |
| 4424 6 2 4 4 2 6 | |
| 4425 .--------+--------+--------+--------. | |
| 4426 |00aaaaaa|00bbbbbb|00cccccc|00dddddd| | |
| 4427 `--------+--------+--------+--------' | |
| 4428 | |
| 4429 .--------+--------+--------+--------. | |
| 4430 |AAAAAAAA|BBBBBBBB|CCCCCCCC|DDDDDDDD| | |
| 4431 `--------+--------+--------+--------' | |
| 4432 | |
| 4433 The octets are divided into 6 bit chunks, which are then encoded into | |
| 4434 base64 characters. */ | |
| 4435 | |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4966
diff
changeset
|
4436 static DECLARE_DOESNT_RETURN (base64_conversion_error (const Ascbyte *, |
| 2268 | 4437 Lisp_Object)); |
| 4438 | |
| 575 | 4439 static DOESNT_RETURN |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4966
diff
changeset
|
4440 base64_conversion_error (const Ascbyte *reason, Lisp_Object frob) |
| 563 | 4441 { |
| 4442 signal_error (Qbase64_conversion_error, reason, frob); | |
| 4443 } | |
| 4444 | |
| 4445 #define ADVANCE_INPUT(c, stream) \ | |
| 867 | 4446 ((ec = Lstream_get_ichar (stream)) == -1 ? 0 : \ |
| 563 | 4447 ((ec > 255) ? \ |
| 4448 (base64_conversion_error ("Non-ascii character in base64 input", \ | |
| 4449 make_char (ec)), 0) \ | |
| 867 | 4450 : (c = (Ibyte)ec), 1)) |
| 665 | 4451 |
| 4452 static Bytebpos | |
| 867 | 4453 base64_encode_1 (Lstream *istream, Ibyte *to, int line_break) |
| 428 | 4454 { |
| 4455 EMACS_INT counter = 0; | |
| 867 | 4456 Ibyte *e = to; |
| 4457 Ichar ec; | |
| 428 | 4458 unsigned int value; |
| 4459 | |
| 4460 while (1) | |
| 4461 { | |
| 1204 | 4462 Ibyte c = 0; |
| 428 | 4463 if (!ADVANCE_INPUT (c, istream)) |
| 4464 break; | |
| 4465 | |
| 4466 /* Wrap line every 76 characters. */ | |
| 4467 if (line_break) | |
| 4468 { | |
| 4469 if (counter < MIME_LINE_LENGTH / 4) | |
| 4470 counter++; | |
| 4471 else | |
| 4472 { | |
| 4473 *e++ = '\n'; | |
| 4474 counter = 1; | |
| 4475 } | |
| 4476 } | |
| 4477 | |
| 4478 /* Process first byte of a triplet. */ | |
| 4479 *e++ = base64_value_to_char[0x3f & c >> 2]; | |
| 4480 value = (0x03 & c) << 4; | |
| 4481 | |
| 4482 /* Process second byte of a triplet. */ | |
| 4483 if (!ADVANCE_INPUT (c, istream)) | |
| 4484 { | |
| 4485 *e++ = base64_value_to_char[value]; | |
| 4486 *e++ = '='; | |
| 4487 *e++ = '='; | |
| 4488 break; | |
| 4489 } | |
| 4490 | |
| 4491 *e++ = base64_value_to_char[value | (0x0f & c >> 4)]; | |
| 4492 value = (0x0f & c) << 2; | |
| 4493 | |
| 4494 /* Process third byte of a triplet. */ | |
| 4495 if (!ADVANCE_INPUT (c, istream)) | |
| 4496 { | |
| 4497 *e++ = base64_value_to_char[value]; | |
| 4498 *e++ = '='; | |
| 4499 break; | |
| 4500 } | |
| 4501 | |
| 4502 *e++ = base64_value_to_char[value | (0x03 & c >> 6)]; | |
| 4503 *e++ = base64_value_to_char[0x3f & c]; | |
| 4504 } | |
| 4505 | |
| 4506 return e - to; | |
| 4507 } | |
| 4508 #undef ADVANCE_INPUT | |
| 4509 | |
| 4510 /* Get next character from the stream, except that non-base64 | |
| 4511 characters are ignored. This is in accordance with rfc2045. EC | |
| 867 | 4512 should be an Ichar, so that it can hold -1 as the value for EOF. */ |
| 428 | 4513 #define ADVANCE_INPUT_IGNORE_NONBASE64(ec, stream, streampos) do { \ |
| 867 | 4514 ec = Lstream_get_ichar (stream); \ |
| 428 | 4515 ++streampos; \ |
| 4516 /* IS_BASE64 may not be called with negative arguments so check for \ | |
| 4517 EOF first. */ \ | |
| 4518 if (ec < 0 || IS_BASE64 (ec) || ec == '=') \ | |
| 4519 break; \ | |
| 4520 } while (1) | |
| 4521 | |
| 4522 #define STORE_BYTE(pos, val, ccnt) do { \ | |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4966
diff
changeset
|
4523 pos += set_itext_ichar (pos, (Ichar)((Binbyte)(val))); \ |
| 428 | 4524 ++ccnt; \ |
| 4525 } while (0) | |
| 4526 | |
| 665 | 4527 static Bytebpos |
| 867 | 4528 base64_decode_1 (Lstream *istream, Ibyte *to, Charcount *ccptr) |
| 428 | 4529 { |
| 4530 Charcount ccnt = 0; | |
| 867 | 4531 Ibyte *e = to; |
| 428 | 4532 EMACS_INT streampos = 0; |
| 4533 | |
| 4534 while (1) | |
| 4535 { | |
| 867 | 4536 Ichar ec; |
| 428 | 4537 unsigned long value; |
| 4538 | |
| 4539 /* Process first byte of a quadruplet. */ | |
| 4540 ADVANCE_INPUT_IGNORE_NONBASE64 (ec, istream, streampos); | |
| 4541 if (ec < 0) | |
| 4542 break; | |
| 4543 if (ec == '=') | |
| 563 | 4544 base64_conversion_error ("Illegal `=' character while decoding base64", |
| 4545 make_int (streampos)); | |
| 428 | 4546 value = base64_char_to_value[ec] << 18; |
| 4547 | |
| 4548 /* Process second byte of a quadruplet. */ | |
| 4549 ADVANCE_INPUT_IGNORE_NONBASE64 (ec, istream, streampos); | |
| 4550 if (ec < 0) | |
| 563 | 4551 base64_conversion_error ("Premature EOF while decoding base64", |
| 4552 Qunbound); | |
| 428 | 4553 if (ec == '=') |
| 563 | 4554 base64_conversion_error ("Illegal `=' character while decoding base64", |
| 4555 make_int (streampos)); | |
| 428 | 4556 value |= base64_char_to_value[ec] << 12; |
| 4557 STORE_BYTE (e, value >> 16, ccnt); | |
| 4558 | |
| 4559 /* Process third byte of a quadruplet. */ | |
| 4560 ADVANCE_INPUT_IGNORE_NONBASE64 (ec, istream, streampos); | |
| 4561 if (ec < 0) | |
| 563 | 4562 base64_conversion_error ("Premature EOF while decoding base64", |
| 4563 Qunbound); | |
| 428 | 4564 |
| 4565 if (ec == '=') | |
| 4566 { | |
| 4567 ADVANCE_INPUT_IGNORE_NONBASE64 (ec, istream, streampos); | |
| 4568 if (ec < 0) | |
| 563 | 4569 base64_conversion_error ("Premature EOF while decoding base64", |
| 4570 Qunbound); | |
| 428 | 4571 if (ec != '=') |
| 563 | 4572 base64_conversion_error |
| 4573 ("Padding `=' expected but not found while decoding base64", | |
| 4574 make_int (streampos)); | |
| 428 | 4575 continue; |
| 4576 } | |
| 4577 | |
| 4578 value |= base64_char_to_value[ec] << 6; | |
| 4579 STORE_BYTE (e, 0xff & value >> 8, ccnt); | |
| 4580 | |
| 4581 /* Process fourth byte of a quadruplet. */ | |
| 4582 ADVANCE_INPUT_IGNORE_NONBASE64 (ec, istream, streampos); | |
| 4583 if (ec < 0) | |
| 563 | 4584 base64_conversion_error ("Premature EOF while decoding base64", |
| 4585 Qunbound); | |
| 428 | 4586 if (ec == '=') |
| 4587 continue; | |
| 4588 | |
| 4589 value |= base64_char_to_value[ec]; | |
| 4590 STORE_BYTE (e, 0xff & value, ccnt); | |
| 4591 } | |
| 4592 | |
| 4593 *ccptr = ccnt; | |
| 4594 return e - to; | |
| 4595 } | |
| 4596 #undef ADVANCE_INPUT | |
| 4597 #undef ADVANCE_INPUT_IGNORE_NONBASE64 | |
| 4598 #undef STORE_BYTE | |
| 4599 | |
| 4600 DEFUN ("base64-encode-region", Fbase64_encode_region, 2, 3, "r", /* | |
| 444 | 4601 Base64-encode the region between START and END. |
| 428 | 4602 Return the length of the encoded text. |
| 4603 Optional third argument NO-LINE-BREAK means do not break long lines | |
| 4604 into shorter lines. | |
| 4605 */ | |
| 444 | 4606 (start, end, no_line_break)) |
| 428 | 4607 { |
| 867 | 4608 Ibyte *encoded; |
| 665 | 4609 Bytebpos encoded_length; |
| 428 | 4610 Charcount allength, length; |
| 4611 struct buffer *buf = current_buffer; | |
| 665 | 4612 Charbpos begv, zv, old_pt = BUF_PT (buf); |
| 428 | 4613 Lisp_Object input; |
| 851 | 4614 int speccount = specpdl_depth (); |
| 428 | 4615 |
| 444 | 4616 get_buffer_range_char (buf, start, end, &begv, &zv, 0); |
| 428 | 4617 barf_if_buffer_read_only (buf, begv, zv); |
| 4618 | |
| 4619 /* We need to allocate enough room for encoding the text. | |
| 4620 We need 33 1/3% more space, plus a newline every 76 | |
| 4621 characters, and then we round up. */ | |
| 4622 length = zv - begv; | |
| 4623 allength = length + length/3 + 1; | |
| 4624 allength += allength / MIME_LINE_LENGTH + 1 + 6; | |
| 4625 | |
| 4626 input = make_lisp_buffer_input_stream (buf, begv, zv, 0); | |
| 867 | 4627 /* We needn't multiply allength with MAX_ICHAR_LEN because all the |
| 428 | 4628 base64 characters will be single-byte. */ |
| 867 | 4629 encoded = (Ibyte *) MALLOC_OR_ALLOCA (allength); |
| 428 | 4630 encoded_length = base64_encode_1 (XLSTREAM (input), encoded, |
| 4631 NILP (no_line_break)); | |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
5002
diff
changeset
|
4632 assert (encoded_length <= allength); |
| 428 | 4633 Lstream_delete (XLSTREAM (input)); |
| 4634 | |
| 4635 /* Now we have encoded the region, so we insert the new contents | |
| 4636 and delete the old. (Insert first in order to preserve markers.) */ | |
| 4637 buffer_insert_raw_string_1 (buf, begv, encoded, encoded_length, 0); | |
| 851 | 4638 unbind_to (speccount); |
| 428 | 4639 buffer_delete_range (buf, begv + encoded_length, zv + encoded_length, 0); |
| 4640 | |
| 4641 /* Simulate FSF Emacs implementation of this function: if point was | |
| 4642 in the region, place it at the beginning. */ | |
| 4643 if (old_pt >= begv && old_pt < zv) | |
| 4644 BUF_SET_PT (buf, begv); | |
| 4645 | |
| 4646 /* We return the length of the encoded text. */ | |
| 4647 return make_int (encoded_length); | |
| 4648 } | |
| 4649 | |
| 4650 DEFUN ("base64-encode-string", Fbase64_encode_string, 1, 2, 0, /* | |
| 4651 Base64 encode STRING and return the result. | |
| 444 | 4652 Optional argument NO-LINE-BREAK means do not break long lines |
| 4653 into shorter lines. | |
| 428 | 4654 */ |
| 4655 (string, no_line_break)) | |
| 4656 { | |
| 4657 Charcount allength, length; | |
| 665 | 4658 Bytebpos encoded_length; |
| 867 | 4659 Ibyte *encoded; |
| 428 | 4660 Lisp_Object input, result; |
| 4661 int speccount = specpdl_depth(); | |
| 4662 | |
| 4663 CHECK_STRING (string); | |
| 4664 | |
| 826 | 4665 length = string_char_length (string); |
| 428 | 4666 allength = length + length/3 + 1; |
| 4667 allength += allength / MIME_LINE_LENGTH + 1 + 6; | |
| 4668 | |
| 4669 input = make_lisp_string_input_stream (string, 0, -1); | |
| 867 | 4670 encoded = (Ibyte *) MALLOC_OR_ALLOCA (allength); |
| 428 | 4671 encoded_length = base64_encode_1 (XLSTREAM (input), encoded, |
| 4672 NILP (no_line_break)); | |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
5002
diff
changeset
|
4673 assert (encoded_length <= allength); |
| 428 | 4674 Lstream_delete (XLSTREAM (input)); |
| 4675 result = make_string (encoded, encoded_length); | |
| 851 | 4676 unbind_to (speccount); |
| 428 | 4677 return result; |
| 4678 } | |
| 4679 | |
| 4680 DEFUN ("base64-decode-region", Fbase64_decode_region, 2, 2, "r", /* | |
| 444 | 4681 Base64-decode the region between START and END. |
| 428 | 4682 Return the length of the decoded text. |
| 4683 If the region can't be decoded, return nil and don't modify the buffer. | |
| 4684 Characters out of the base64 alphabet are ignored. | |
| 4685 */ | |
| 444 | 4686 (start, end)) |
| 428 | 4687 { |
| 4688 struct buffer *buf = current_buffer; | |
| 665 | 4689 Charbpos begv, zv, old_pt = BUF_PT (buf); |
| 867 | 4690 Ibyte *decoded; |
| 665 | 4691 Bytebpos decoded_length; |
| 428 | 4692 Charcount length, cc_decoded_length; |
| 4693 Lisp_Object input; | |
| 4694 int speccount = specpdl_depth(); | |
| 4695 | |
| 444 | 4696 get_buffer_range_char (buf, start, end, &begv, &zv, 0); |
| 428 | 4697 barf_if_buffer_read_only (buf, begv, zv); |
| 4698 | |
| 4699 length = zv - begv; | |
| 4700 | |
| 4701 input = make_lisp_buffer_input_stream (buf, begv, zv, 0); | |
| 4702 /* We need to allocate enough room for decoding the text. */ | |
| 867 | 4703 decoded = (Ibyte *) MALLOC_OR_ALLOCA (length * MAX_ICHAR_LEN); |
| 428 | 4704 decoded_length = base64_decode_1 (XLSTREAM (input), decoded, &cc_decoded_length); |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
5002
diff
changeset
|
4705 assert (decoded_length <= length * MAX_ICHAR_LEN); |
| 428 | 4706 Lstream_delete (XLSTREAM (input)); |
| 4707 | |
| 4708 /* Now we have decoded the region, so we insert the new contents | |
| 4709 and delete the old. (Insert first in order to preserve markers.) */ | |
| 4710 BUF_SET_PT (buf, begv); | |
| 4711 buffer_insert_raw_string_1 (buf, begv, decoded, decoded_length, 0); | |
| 851 | 4712 unbind_to (speccount); |
| 428 | 4713 buffer_delete_range (buf, begv + cc_decoded_length, |
| 4714 zv + cc_decoded_length, 0); | |
| 4715 | |
| 4716 /* Simulate FSF Emacs implementation of this function: if point was | |
| 4717 in the region, place it at the beginning. */ | |
| 4718 if (old_pt >= begv && old_pt < zv) | |
| 4719 BUF_SET_PT (buf, begv); | |
| 4720 | |
| 4721 return make_int (cc_decoded_length); | |
| 4722 } | |
| 4723 | |
| 4724 DEFUN ("base64-decode-string", Fbase64_decode_string, 1, 1, 0, /* | |
| 4725 Base64-decode STRING and return the result. | |
| 4726 Characters out of the base64 alphabet are ignored. | |
| 4727 */ | |
| 4728 (string)) | |
| 4729 { | |
| 867 | 4730 Ibyte *decoded; |
| 665 | 4731 Bytebpos decoded_length; |
| 428 | 4732 Charcount length, cc_decoded_length; |
| 4733 Lisp_Object input, result; | |
| 4734 int speccount = specpdl_depth(); | |
| 4735 | |
| 4736 CHECK_STRING (string); | |
| 4737 | |
| 826 | 4738 length = string_char_length (string); |
| 428 | 4739 /* We need to allocate enough room for decoding the text. */ |
| 867 | 4740 decoded = (Ibyte *) MALLOC_OR_ALLOCA (length * MAX_ICHAR_LEN); |
| 428 | 4741 |
| 4742 input = make_lisp_string_input_stream (string, 0, -1); | |
| 4743 decoded_length = base64_decode_1 (XLSTREAM (input), decoded, | |
| 4744 &cc_decoded_length); | |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
5002
diff
changeset
|
4745 assert (decoded_length <= length * MAX_ICHAR_LEN); |
| 428 | 4746 Lstream_delete (XLSTREAM (input)); |
| 4747 | |
| 4748 result = make_string (decoded, decoded_length); | |
| 851 | 4749 unbind_to (speccount); |
| 428 | 4750 return result; |
| 4751 } | |
| 4752 | |
| 4753 Lisp_Object Qyes_or_no_p; | |
| 4754 | |
| 4755 void | |
| 4756 syms_of_fns (void) | |
| 4757 { | |
|
5117
3742ea8250b5
Checking in final CVS version of workspace 'ben-lisp-object'
Ben Wing <ben@xemacs.org>
parents:
3025
diff
changeset
|
4758 INIT_LISP_OBJECT (bit_vector); |
| 442 | 4759 |
| 563 | 4760 DEFSYMBOL (Qstring_lessp); |
| 4761 DEFSYMBOL (Qidentity); | |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4762 DEFSYMBOL (Qvector); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4763 DEFSYMBOL (Qarray); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4764 DEFSYMBOL (Qstring); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4765 DEFSYMBOL (Qlist); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4766 DEFSYMBOL (Qbit_vector); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4767 |
| 563 | 4768 DEFSYMBOL (Qyes_or_no_p); |
| 4769 | |
| 4770 DEFERROR_STANDARD (Qbase64_conversion_error, Qconversion_error); | |
| 428 | 4771 |
| 4772 DEFSUBR (Fidentity); | |
| 4773 DEFSUBR (Frandom); | |
| 4774 DEFSUBR (Flength); | |
| 4775 DEFSUBR (Fsafe_length); | |
| 4776 DEFSUBR (Fstring_equal); | |
| 801 | 4777 DEFSUBR (Fcompare_strings); |
| 428 | 4778 DEFSUBR (Fstring_lessp); |
| 4779 DEFSUBR (Fstring_modified_tick); | |
| 4780 DEFSUBR (Fappend); | |
| 4781 DEFSUBR (Fconcat); | |
| 4782 DEFSUBR (Fvconcat); | |
| 4783 DEFSUBR (Fbvconcat); | |
| 4784 DEFSUBR (Fcopy_list); | |
| 4785 DEFSUBR (Fcopy_sequence); | |
| 4786 DEFSUBR (Fcopy_alist); | |
| 4787 DEFSUBR (Fcopy_tree); | |
| 4788 DEFSUBR (Fsubseq); | |
| 4789 DEFSUBR (Fnthcdr); | |
| 4790 DEFSUBR (Fnth); | |
| 4791 DEFSUBR (Felt); | |
| 4792 DEFSUBR (Flast); | |
| 4793 DEFSUBR (Fbutlast); | |
| 4794 DEFSUBR (Fnbutlast); | |
| 4795 DEFSUBR (Fmember); | |
| 4796 DEFSUBR (Fold_member); | |
| 4797 DEFSUBR (Fmemq); | |
| 4798 DEFSUBR (Fold_memq); | |
| 4799 DEFSUBR (Fassoc); | |
| 4800 DEFSUBR (Fold_assoc); | |
| 4801 DEFSUBR (Fassq); | |
| 4802 DEFSUBR (Fold_assq); | |
| 4803 DEFSUBR (Frassoc); | |
| 4804 DEFSUBR (Fold_rassoc); | |
| 4805 DEFSUBR (Frassq); | |
| 4806 DEFSUBR (Fold_rassq); | |
| 4807 DEFSUBR (Fdelete); | |
| 4808 DEFSUBR (Fold_delete); | |
| 4809 DEFSUBR (Fdelq); | |
| 4810 DEFSUBR (Fold_delq); | |
| 4811 DEFSUBR (Fremassoc); | |
| 4812 DEFSUBR (Fremassq); | |
| 4813 DEFSUBR (Fremrassoc); | |
| 4814 DEFSUBR (Fremrassq); | |
| 4815 DEFSUBR (Fnreverse); | |
| 4816 DEFSUBR (Freverse); | |
| 4817 DEFSUBR (Fsort); | |
| 4818 DEFSUBR (Fplists_eq); | |
| 4819 DEFSUBR (Fplists_equal); | |
| 4820 DEFSUBR (Flax_plists_eq); | |
| 4821 DEFSUBR (Flax_plists_equal); | |
| 4822 DEFSUBR (Fplist_get); | |
| 4823 DEFSUBR (Fplist_put); | |
| 4824 DEFSUBR (Fplist_remprop); | |
| 4825 DEFSUBR (Fplist_member); | |
| 4826 DEFSUBR (Fcheck_valid_plist); | |
| 4827 DEFSUBR (Fvalid_plist_p); | |
| 4828 DEFSUBR (Fcanonicalize_plist); | |
| 4829 DEFSUBR (Flax_plist_get); | |
| 4830 DEFSUBR (Flax_plist_put); | |
| 4831 DEFSUBR (Flax_plist_remprop); | |
| 4832 DEFSUBR (Flax_plist_member); | |
| 4833 DEFSUBR (Fcanonicalize_lax_plist); | |
| 4834 DEFSUBR (Fdestructive_alist_to_plist); | |
| 4835 DEFSUBR (Fget); | |
| 4836 DEFSUBR (Fput); | |
| 4837 DEFSUBR (Fremprop); | |
| 4838 DEFSUBR (Fobject_plist); | |
| 4839 DEFSUBR (Fequal); | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
4840 DEFSUBR (Fequalp); |
| 428 | 4841 DEFSUBR (Fold_equal); |
| 4842 DEFSUBR (Ffillarray); | |
| 4843 DEFSUBR (Fnconc); | |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4844 DEFSUBR (FmapcarX); |
| 428 | 4845 DEFSUBR (Fmapvector); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4846 DEFSUBR (Fmapcan); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4847 DEFSUBR (Fmapc); |
| 428 | 4848 DEFSUBR (Fmapconcat); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4849 DEFSUBR (Fmap); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4850 DEFSUBR (Fmap_into); |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
4851 DEFSUBR (Fsome); |
|
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
4852 DEFSUBR (Fevery); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4853 Ffset (intern ("mapc-internal"), Fsymbol_function (intern ("mapc"))); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4854 Ffset (intern ("mapcar"), Fsymbol_function (intern ("mapcar*"))); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4855 DEFSUBR (Fmaplist); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4856 DEFSUBR (Fmapl); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4857 DEFSUBR (Fmapcon); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
4858 |
| 442 | 4859 DEFSUBR (Freplace_list); |
| 428 | 4860 DEFSUBR (Fload_average); |
| 4861 DEFSUBR (Ffeaturep); | |
| 4862 DEFSUBR (Frequire); | |
| 4863 DEFSUBR (Fprovide); | |
| 4864 DEFSUBR (Fbase64_encode_region); | |
| 4865 DEFSUBR (Fbase64_encode_string); | |
| 4866 DEFSUBR (Fbase64_decode_region); | |
| 4867 DEFSUBR (Fbase64_decode_string); | |
| 771 | 4868 |
| 4869 DEFSUBR (Fsplit_string_by_char); | |
| 4870 DEFSUBR (Fsplit_path); /* #### */ | |
| 4871 } | |
| 4872 | |
| 4873 void | |
| 4874 vars_of_fns (void) | |
| 4875 { | |
| 4876 DEFVAR_LISP ("path-separator", &Vpath_separator /* | |
| 4877 The directory separator in search paths, as a string. | |
| 4878 */ ); | |
| 4879 { | |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4966
diff
changeset
|
4880 Ascbyte c = SEPCHAR; |
| 867 | 4881 Vpath_separator = make_string ((Ibyte *) &c, 1); |
| 771 | 4882 } |
| 428 | 4883 } |
| 4884 | |
| 4885 void | |
| 4886 init_provide_once (void) | |
| 4887 { | |
| 4888 DEFVAR_LISP ("features", &Vfeatures /* | |
| 4889 A list of symbols which are the features of the executing emacs. | |
| 4890 Used by `featurep' and `require', and altered by `provide'. | |
| 4891 */ ); | |
| 4892 Vfeatures = Qnil; | |
| 4893 | |
| 4894 Fprovide (intern ("base64")); | |
| 4895 } |