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annotate src/fns.c @ 5697:40fbceabaafd
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| author | Stephen J. Turnbull <stephen@xemacs.org> |
|---|---|
| date | Mon, 24 Dec 2012 03:08:33 +0900 |
| parents | 1a507c4c6c42 |
| children | e2fae7783046 |
| 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 | |
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7 XEmacs is free software: you can redistribute it and/or modify it |
| 428 | 8 under the terms of the GNU General Public License as published by the |
|
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9 Free Software Foundation, either version 3 of the License, or (at your |
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10 option) any later version. |
| 428 | 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 | |
|
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18 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 428 | 19 |
| 20 /* Synched up with: Mule 2.0, FSF 19.30. */ | |
| 21 | |
| 22 /* This file has been Mule-ized. */ | |
| 23 | |
| 24 /* Note: FSF 19.30 has bool vectors. We have bit vectors. */ | |
| 25 | |
| 26 /* Hacked on for Mule by Ben Wing, December 1994, January 1995. */ | |
| 27 | |
| 28 #include <config.h> | |
| 29 | |
| 30 /* Note on some machines this defines `vector' as a typedef, | |
| 31 so make sure we don't use that name in this file. */ | |
| 32 #undef vector | |
| 33 #define vector ***** | |
| 34 | |
| 35 #include "lisp.h" | |
| 36 | |
| 442 | 37 #include "sysfile.h" |
| 771 | 38 #include "sysproc.h" /* for qxe_getpid() */ |
| 428 | 39 |
| 40 #include "buffer.h" | |
| 41 #include "bytecode.h" | |
| 42 #include "device.h" | |
| 43 #include "events.h" | |
| 44 #include "extents.h" | |
| 45 #include "frame.h" | |
| 872 | 46 #include "process.h" |
| 428 | 47 #include "systime.h" |
| 48 #include "insdel.h" | |
| 49 #include "lstream.h" | |
| 50 #include "opaque.h" | |
| 51 | |
| 52 /* NOTE: This symbol is also used in lread.c */ | |
| 53 #define FEATUREP_SYNTAX | |
| 54 | |
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55 extern Fixnum max_lisp_eval_depth; |
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56 extern int lisp_eval_depth; |
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57 |
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58 Lisp_Object Qmapl, Qmapcon, Qmaplist, Qbase64_conversion_error; |
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59 |
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60 Lisp_Object Vpath_separator; |
| 428 | 61 |
| 62 DEFUN ("identity", Fidentity, 1, 1, 0, /* | |
| 63 Return the argument unchanged. | |
| 64 */ | |
| 65 (arg)) | |
| 66 { | |
| 67 return arg; | |
| 68 } | |
| 69 | |
| 70 DEFUN ("random", Frandom, 0, 1, 0, /* | |
| 71 Return a pseudo-random number. | |
| 1983 | 72 All fixnums are equally likely. On most systems, this is 31 bits' worth. |
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73 With positive integer argument LIMIT, return random number in interval [0, |
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74 LIMIT). LIMIT can be a bignum, in which case the range of possible values |
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75 is extended. With argument t, set the random number seed from the current |
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76 time and pid. |
| 428 | 77 */ |
| 78 (limit)) | |
| 79 { | |
| 80 EMACS_INT val; | |
| 81 unsigned long denominator; | |
| 82 | |
| 83 if (EQ (limit, Qt)) | |
| 771 | 84 seed_random (qxe_getpid () + time (NULL)); |
| 428 | 85 if (NATNUMP (limit) && !ZEROP (limit)) |
| 86 { | |
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87 #ifdef HAVE_BIGNUM |
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88 if (BIGNUMP (limit)) |
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89 { |
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90 bignum_random (scratch_bignum, XBIGNUM_DATA (limit)); |
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91 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
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92 } |
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93 #endif |
| 428 | 94 /* Try to take our random number from the higher bits of VAL, |
| 95 not the lower, since (says Gentzel) the low bits of `random' | |
| 96 are less random than the higher ones. We do this by using the | |
| 97 quotient rather than the remainder. At the high end of the RNG | |
| 98 it's possible to get a quotient larger than limit; discarding | |
| 99 these values eliminates the bias that would otherwise appear | |
| 100 when using a large limit. */ | |
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101 denominator = ((unsigned long)1 << FIXNUM_VALBITS) / XFIXNUM (limit); |
| 428 | 102 do |
| 103 val = get_random () / denominator; | |
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104 while (val >= XFIXNUM (limit)); |
| 428 | 105 } |
| 106 else | |
| 107 val = get_random (); | |
| 108 | |
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109 return make_fixnum (val); |
| 428 | 110 } |
| 111 | |
| 112 /* Random data-structure functions */ | |
| 113 | |
| 114 void | |
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115 check_losing_bytecode (const Ascbyte *function, Lisp_Object seq) |
| 428 | 116 { |
| 117 if (COMPILED_FUNCTIONP (seq)) | |
| 563 | 118 signal_ferror_with_frob |
| 119 (Qinvalid_argument, seq, | |
| 428 | 120 "As of 20.3, `%s' no longer works with compiled-function objects", |
| 121 function); | |
| 122 } | |
| 123 | |
| 124 DEFUN ("safe-length", Fsafe_length, 1, 1, 0, /* | |
| 125 Return the length of a list, but avoid error or infinite loop. | |
| 126 This function never gets an error. If LIST is not really a list, | |
| 127 it returns 0. If LIST is circular, it returns a finite value | |
| 128 which is at least the number of distinct elements. | |
| 129 */ | |
| 130 (list)) | |
| 131 { | |
| 132 Lisp_Object hare, tortoise; | |
| 665 | 133 Elemcount len; |
| 428 | 134 |
| 135 for (hare = tortoise = list, len = 0; | |
| 136 CONSP (hare) && (! EQ (hare, tortoise) || len == 0); | |
| 137 hare = XCDR (hare), len++) | |
| 138 { | |
| 139 if (len & 1) | |
| 140 tortoise = XCDR (tortoise); | |
| 141 } | |
| 142 | |
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143 return make_fixnum (len); |
| 428 | 144 } |
| 145 | |
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146 /* This is almost the above, but is defined by Common Lisp. We need it in C |
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147 for shortest_length_among_sequences(), below, for the various sequence |
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148 functions that can usefully operate on circular lists. */ |
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149 |
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150 DEFUN ("list-length", Flist_length, 1, 1, 0, /* |
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151 Return the length of LIST. Return nil if LIST is circular. |
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152 Error if LIST is dotted. |
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153 */ |
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154 (list)) |
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155 { |
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156 Lisp_Object hare, tortoise; |
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157 Elemcount len; |
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158 |
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159 for (hare = tortoise = list, len = 0; |
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160 CONSP (hare) && (! EQ (hare, tortoise) || len == 0); |
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161 hare = XCDR (hare), len++) |
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162 { |
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163 if (len & 1) |
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164 tortoise = XCDR (tortoise); |
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165 } |
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166 |
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167 if (!LISTP (hare)) |
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168 { |
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169 signal_malformed_list_error (list); |
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170 } |
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171 |
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172 return EQ (hare, tortoise) && len != 0 ? Qnil : make_fixnum (len); |
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173 } |
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174 |
| 428 | 175 /*** string functions. ***/ |
| 176 | |
| 177 DEFUN ("string-equal", Fstring_equal, 2, 2, 0, /* | |
| 178 Return t if two strings have identical contents. | |
| 179 Case is significant. Text properties are ignored. | |
| 180 \(Under XEmacs, `equal' also ignores text properties and extents in | |
| 181 strings, but this is not the case under FSF Emacs 19. In FSF Emacs 20 | |
| 182 `equal' is the same as in XEmacs, in that respect.) | |
| 183 Symbols are also allowed; their print names are used instead. | |
| 184 */ | |
| 444 | 185 (string1, string2)) |
| 428 | 186 { |
| 187 Bytecount len; | |
| 793 | 188 Lisp_Object p1, p2; |
| 428 | 189 |
| 444 | 190 if (SYMBOLP (string1)) |
| 191 p1 = XSYMBOL (string1)->name; | |
| 428 | 192 else |
| 193 { | |
| 444 | 194 CHECK_STRING (string1); |
| 793 | 195 p1 = string1; |
| 428 | 196 } |
| 197 | |
| 444 | 198 if (SYMBOLP (string2)) |
| 199 p2 = XSYMBOL (string2)->name; | |
| 428 | 200 else |
| 201 { | |
| 444 | 202 CHECK_STRING (string2); |
| 793 | 203 p2 = string2; |
| 428 | 204 } |
| 205 | |
| 793 | 206 return (((len = XSTRING_LENGTH (p1)) == XSTRING_LENGTH (p2)) && |
| 207 !memcmp (XSTRING_DATA (p1), XSTRING_DATA (p2), len)) ? Qt : Qnil; | |
| 428 | 208 } |
| 209 | |
| 801 | 210 DEFUN ("compare-strings", Fcompare_strings, 6, 7, 0, /* |
| 211 Compare the contents of two strings, maybe ignoring case. | |
| 212 In string STR1, skip the first START1 characters and stop at END1. | |
| 213 In string STR2, skip the first START2 characters and stop at END2. | |
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214 END1 and END2 default to the full lengths of the respective strings, |
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215 and arguments that are outside the string (negative STARTi or ENDi |
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216 greater than length) are coerced to 0 or string length as appropriate. |
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217 |
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218 Optional IGNORE-CASE non-nil means use case-insensitive comparison. |
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219 Case is significant by default. |
| 801 | 220 |
| 221 The value is t if the strings (or specified portions) match. | |
| 222 If string STR1 is less, the value is a negative number N; | |
| 223 - 1 - N is the number of characters that match at the beginning. | |
| 224 If string STR1 is greater, the value is a positive number N; | |
| 225 N - 1 is the number of characters that match at the beginning. | |
| 226 */ | |
| 227 (str1, start1, end1, str2, start2, end2, ignore_case)) | |
| 228 { | |
| 229 Charcount ccstart1, ccend1, ccstart2, ccend2; | |
| 230 Bytecount bstart1, blen1, bstart2, blen2; | |
| 231 Charcount matching; | |
| 232 int res; | |
| 233 | |
| 234 CHECK_STRING (str1); | |
| 235 CHECK_STRING (str2); | |
| 236 get_string_range_char (str1, start1, end1, &ccstart1, &ccend1, | |
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237 GB_HISTORICAL_STRING_BEHAVIOR|GB_COERCE_RANGE); |
| 801 | 238 get_string_range_char (str2, start2, end2, &ccstart2, &ccend2, |
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239 GB_HISTORICAL_STRING_BEHAVIOR|GB_COERCE_RANGE); |
| 801 | 240 |
| 241 bstart1 = string_index_char_to_byte (str1, ccstart1); | |
| 242 blen1 = string_offset_char_to_byte_len (str1, bstart1, ccend1 - ccstart1); | |
| 243 bstart2 = string_index_char_to_byte (str2, ccstart2); | |
| 244 blen2 = string_offset_char_to_byte_len (str2, bstart2, ccend2 - ccstart2); | |
| 245 | |
| 246 res = ((NILP (ignore_case) ? qxetextcmp_matching : qxetextcasecmp_matching) | |
| 247 (XSTRING_DATA (str1) + bstart1, blen1, | |
| 248 XSTRING_DATA (str2) + bstart2, blen2, | |
| 249 &matching)); | |
| 250 | |
| 251 if (!res) | |
| 252 return Qt; | |
| 253 else if (res > 0) | |
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254 return make_fixnum (1 + matching); |
| 801 | 255 else |
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256 return make_fixnum (-1 - matching); |
| 801 | 257 } |
| 258 | |
| 428 | 259 DEFUN ("string-lessp", Fstring_lessp, 2, 2, 0, /* |
| 260 Return t if first arg string is less than second in lexicographic order. | |
| 771 | 261 Comparison is simply done on a character-by-character basis using the |
| 262 numeric value of a character. (Note that this may not produce | |
| 263 particularly meaningful results under Mule if characters from | |
| 264 different charsets are being compared.) | |
| 428 | 265 |
| 266 Symbols are also allowed; their print names are used instead. | |
| 267 | |
| 771 | 268 Currently we don't do proper language-specific collation or handle |
| 269 multiple character sets. This may be changed when Unicode support | |
| 270 is implemented. | |
| 428 | 271 */ |
| 444 | 272 (string1, string2)) |
| 428 | 273 { |
| 793 | 274 Lisp_Object p1, p2; |
| 428 | 275 Charcount end, len2; |
| 276 int i; | |
| 277 | |
| 444 | 278 if (SYMBOLP (string1)) |
| 279 p1 = XSYMBOL (string1)->name; | |
| 793 | 280 else |
| 281 { | |
| 444 | 282 CHECK_STRING (string1); |
| 793 | 283 p1 = string1; |
| 428 | 284 } |
| 285 | |
| 444 | 286 if (SYMBOLP (string2)) |
| 287 p2 = XSYMBOL (string2)->name; | |
| 428 | 288 else |
| 289 { | |
| 444 | 290 CHECK_STRING (string2); |
| 793 | 291 p2 = string2; |
| 428 | 292 } |
| 293 | |
| 826 | 294 end = string_char_length (p1); |
| 295 len2 = string_char_length (p2); | |
| 428 | 296 if (end > len2) |
| 297 end = len2; | |
| 298 | |
| 299 { | |
| 867 | 300 Ibyte *ptr1 = XSTRING_DATA (p1); |
| 301 Ibyte *ptr2 = XSTRING_DATA (p2); | |
| 428 | 302 |
| 303 /* #### It is not really necessary to do this: We could compare | |
| 304 byte-by-byte and still get a reasonable comparison, since this | |
| 305 would compare characters with a charset in the same way. With | |
| 306 a little rearrangement of the leading bytes, we could make most | |
| 307 inter-charset comparisons work out the same, too; even if some | |
| 308 don't, this is not a big deal because inter-charset comparisons | |
| 309 aren't really well-defined anyway. */ | |
| 310 for (i = 0; i < end; i++) | |
| 311 { | |
| 867 | 312 if (itext_ichar (ptr1) != itext_ichar (ptr2)) |
| 313 return itext_ichar (ptr1) < itext_ichar (ptr2) ? Qt : Qnil; | |
| 314 INC_IBYTEPTR (ptr1); | |
| 315 INC_IBYTEPTR (ptr2); | |
| 428 | 316 } |
| 317 } | |
| 318 /* Can't do i < len2 because then comparison between "foo" and "foo^@" | |
| 319 won't work right in I18N2 case */ | |
| 320 return end < len2 ? Qt : Qnil; | |
| 321 } | |
| 322 | |
| 323 DEFUN ("string-modified-tick", Fstring_modified_tick, 1, 1, 0, /* | |
| 324 Return STRING's tick counter, incremented for each change to the string. | |
| 325 Each string has a tick counter which is incremented each time the contents | |
| 326 of the string are changed (e.g. with `aset'). It wraps around occasionally. | |
| 327 */ | |
| 328 (string)) | |
| 329 { | |
| 330 CHECK_STRING (string); | |
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331 if (CONSP (XSTRING_PLIST (string)) && FIXNUMP (XCAR (XSTRING_PLIST (string)))) |
| 793 | 332 return XCAR (XSTRING_PLIST (string)); |
| 428 | 333 else |
| 334 return Qzero; | |
| 335 } | |
| 336 | |
| 337 void | |
| 338 bump_string_modiff (Lisp_Object str) | |
| 339 { | |
| 793 | 340 Lisp_Object *ptr = &XSTRING_PLIST (str); |
| 428 | 341 |
| 342 #ifdef I18N3 | |
| 343 /* #### remove the `string-translatable' property from the string, | |
| 344 if there is one. */ | |
| 345 #endif | |
| 346 /* skip over extent info if it's there */ | |
| 347 if (CONSP (*ptr) && EXTENT_INFOP (XCAR (*ptr))) | |
| 348 ptr = &XCDR (*ptr); | |
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349 if (CONSP (*ptr) && FIXNUMP (XCAR (*ptr))) |
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350 XCAR (*ptr) = make_fixnum (1+XFIXNUM (XCAR (*ptr))); |
| 428 | 351 else |
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352 *ptr = Fcons (make_fixnum (1), *ptr); |
| 428 | 353 } |
| 354 | |
| 355 | |
| 356 enum concat_target_type { c_cons, c_string, c_vector, c_bit_vector }; | |
| 357 static Lisp_Object concat (int nargs, Lisp_Object *args, | |
| 358 enum concat_target_type target_type, | |
| 359 int last_special); | |
| 360 | |
| 361 Lisp_Object | |
| 444 | 362 concat2 (Lisp_Object string1, Lisp_Object string2) |
| 428 | 363 { |
| 364 Lisp_Object args[2]; | |
| 444 | 365 args[0] = string1; |
| 366 args[1] = string2; | |
| 428 | 367 return concat (2, args, c_string, 0); |
| 368 } | |
| 369 | |
| 370 Lisp_Object | |
| 444 | 371 concat3 (Lisp_Object string1, Lisp_Object string2, Lisp_Object string3) |
| 428 | 372 { |
| 373 Lisp_Object args[3]; | |
| 444 | 374 args[0] = string1; |
| 375 args[1] = string2; | |
| 376 args[2] = string3; | |
| 428 | 377 return concat (3, args, c_string, 0); |
| 378 } | |
| 379 | |
| 380 Lisp_Object | |
| 444 | 381 vconcat2 (Lisp_Object vec1, Lisp_Object vec2) |
| 428 | 382 { |
| 383 Lisp_Object args[2]; | |
| 444 | 384 args[0] = vec1; |
| 385 args[1] = vec2; | |
| 428 | 386 return concat (2, args, c_vector, 0); |
| 387 } | |
| 388 | |
| 389 Lisp_Object | |
| 444 | 390 vconcat3 (Lisp_Object vec1, Lisp_Object vec2, Lisp_Object vec3) |
| 428 | 391 { |
| 392 Lisp_Object args[3]; | |
| 444 | 393 args[0] = vec1; |
| 394 args[1] = vec2; | |
| 395 args[2] = vec3; | |
| 428 | 396 return concat (3, args, c_vector, 0); |
| 397 } | |
| 398 | |
| 399 DEFUN ("append", Fappend, 0, MANY, 0, /* | |
| 400 Concatenate all the arguments and make the result a list. | |
| 401 The result is a list whose elements are the elements of all the arguments. | |
| 402 Each argument may be a list, vector, bit vector, or string. | |
| 403 The last argument is not copied, just used as the tail of the new list. | |
| 404 Also see: `nconc'. | |
|
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405 |
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406 arguments: (&rest ARGS) |
| 428 | 407 */ |
| 408 (int nargs, Lisp_Object *args)) | |
| 409 { | |
| 410 return concat (nargs, args, c_cons, 1); | |
| 411 } | |
| 412 | |
| 413 DEFUN ("concat", Fconcat, 0, MANY, 0, /* | |
| 414 Concatenate all the arguments and make the result a string. | |
| 415 The result is a string whose elements are the elements of all the arguments. | |
| 416 Each argument may be a string or a list or vector of characters. | |
| 417 | |
| 418 As of XEmacs 21.0, this function does NOT accept individual integers | |
| 419 as arguments. Old code that relies on, for example, (concat "foo" 50) | |
| 420 returning "foo50" will fail. To fix such code, either apply | |
| 421 `int-to-string' to the integer argument, or use `format'. | |
|
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422 |
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423 arguments: (&rest ARGS) |
| 428 | 424 */ |
| 425 (int nargs, Lisp_Object *args)) | |
| 426 { | |
| 427 return concat (nargs, args, c_string, 0); | |
| 428 } | |
| 429 | |
| 430 DEFUN ("vconcat", Fvconcat, 0, MANY, 0, /* | |
| 431 Concatenate all the arguments and make the result a vector. | |
| 432 The result is a vector whose elements are the elements of all the arguments. | |
| 433 Each argument may be a list, vector, bit vector, or string. | |
|
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434 |
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435 arguments: (&rest ARGS) |
| 428 | 436 */ |
| 437 (int nargs, Lisp_Object *args)) | |
| 438 { | |
| 439 return concat (nargs, args, c_vector, 0); | |
| 440 } | |
| 441 | |
| 442 DEFUN ("bvconcat", Fbvconcat, 0, MANY, 0, /* | |
| 443 Concatenate all the arguments and make the result a bit vector. | |
| 444 The result is a bit vector whose elements are the elements of all the | |
| 445 arguments. Each argument may be a list, vector, bit vector, or string. | |
|
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446 |
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447 arguments: (&rest ARGS) |
| 428 | 448 */ |
| 449 (int nargs, Lisp_Object *args)) | |
| 450 { | |
| 451 return concat (nargs, args, c_bit_vector, 0); | |
| 452 } | |
| 453 | |
| 454 /* Copy a (possibly dotted) list. LIST must be a cons. | |
| 455 Can't use concat (1, &alist, c_cons, 0) - doesn't handle dotted lists. */ | |
| 456 static Lisp_Object | |
| 457 copy_list (Lisp_Object list) | |
| 458 { | |
| 459 Lisp_Object list_copy = Fcons (XCAR (list), XCDR (list)); | |
| 460 Lisp_Object last = list_copy; | |
| 461 Lisp_Object hare, tortoise; | |
| 665 | 462 Elemcount len; |
| 428 | 463 |
| 464 for (tortoise = hare = XCDR (list), len = 1; | |
| 465 CONSP (hare); | |
| 466 hare = XCDR (hare), len++) | |
| 467 { | |
| 468 XCDR (last) = Fcons (XCAR (hare), XCDR (hare)); | |
| 469 last = XCDR (last); | |
| 470 | |
| 471 if (len < CIRCULAR_LIST_SUSPICION_LENGTH) | |
| 472 continue; | |
| 473 if (len & 1) | |
| 474 tortoise = XCDR (tortoise); | |
| 475 if (EQ (tortoise, hare)) | |
| 476 signal_circular_list_error (list); | |
| 477 } | |
| 478 | |
| 479 return list_copy; | |
| 480 } | |
| 481 | |
| 482 DEFUN ("copy-list", Fcopy_list, 1, 1, 0, /* | |
| 483 Return a copy of list LIST, which may be a dotted list. | |
| 484 The elements of LIST are not copied; they are shared | |
| 485 with the original. | |
| 486 */ | |
| 487 (list)) | |
| 488 { | |
| 489 again: | |
| 490 if (NILP (list)) return list; | |
| 491 if (CONSP (list)) return copy_list (list); | |
| 492 | |
| 493 list = wrong_type_argument (Qlistp, list); | |
| 494 goto again; | |
| 495 } | |
| 496 | |
| 497 DEFUN ("copy-sequence", Fcopy_sequence, 1, 1, 0, /* | |
| 498 Return a copy of list, vector, bit vector or string SEQUENCE. | |
| 499 The elements of a list or vector are not copied; they are shared | |
| 500 with the original. SEQUENCE may be a dotted list. | |
| 501 */ | |
| 502 (sequence)) | |
| 503 { | |
| 504 again: | |
| 505 if (NILP (sequence)) return sequence; | |
| 506 if (CONSP (sequence)) return copy_list (sequence); | |
| 507 if (STRINGP (sequence)) return concat (1, &sequence, c_string, 0); | |
| 508 if (VECTORP (sequence)) return concat (1, &sequence, c_vector, 0); | |
| 509 if (BIT_VECTORP (sequence)) return concat (1, &sequence, c_bit_vector, 0); | |
| 510 | |
| 511 check_losing_bytecode ("copy-sequence", sequence); | |
| 512 sequence = wrong_type_argument (Qsequencep, sequence); | |
| 513 goto again; | |
| 514 } | |
| 515 | |
| 516 struct merge_string_extents_struct | |
| 517 { | |
| 518 Lisp_Object string; | |
| 519 Bytecount entry_offset; | |
| 520 Bytecount entry_length; | |
| 521 }; | |
| 522 | |
| 523 static Lisp_Object | |
| 524 concat (int nargs, Lisp_Object *args, | |
| 525 enum concat_target_type target_type, | |
| 526 int last_special) | |
| 527 { | |
| 528 Lisp_Object val; | |
| 529 Lisp_Object tail = Qnil; | |
| 530 int toindex; | |
| 531 int argnum; | |
| 532 Lisp_Object last_tail; | |
| 533 Lisp_Object prev; | |
| 534 struct merge_string_extents_struct *args_mse = 0; | |
| 867 | 535 Ibyte *string_result = 0; |
| 536 Ibyte *string_result_ptr = 0; | |
| 428 | 537 struct gcpro gcpro1; |
| 851 | 538 int sdep = specpdl_depth (); |
| 428 | 539 |
| 540 /* The modus operandi in Emacs is "caller gc-protects args". | |
| 541 However, concat is called many times in Emacs on freshly | |
| 542 created stuff. So we help those callers out by protecting | |
| 543 the args ourselves to save them a lot of temporary-variable | |
| 544 grief. */ | |
| 545 | |
| 546 GCPRO1 (args[0]); | |
| 547 gcpro1.nvars = nargs; | |
| 548 | |
| 549 #ifdef I18N3 | |
| 550 /* #### if the result is a string and any of the strings have a string | |
| 551 for the `string-translatable' property, then concat should also | |
| 552 concat the args but use the `string-translatable' strings, and store | |
| 553 the result in the returned string's `string-translatable' property. */ | |
| 554 #endif | |
| 555 if (target_type == c_string) | |
| 556 args_mse = alloca_array (struct merge_string_extents_struct, nargs); | |
| 557 | |
| 558 /* In append, the last arg isn't treated like the others */ | |
| 559 if (last_special && nargs > 0) | |
| 560 { | |
| 561 nargs--; | |
| 562 last_tail = args[nargs]; | |
| 563 } | |
| 564 else | |
| 565 last_tail = Qnil; | |
| 566 | |
| 567 /* Check and coerce the arguments. */ | |
| 568 for (argnum = 0; argnum < nargs; argnum++) | |
| 569 { | |
| 570 Lisp_Object seq = args[argnum]; | |
| 571 if (LISTP (seq)) | |
| 572 ; | |
| 573 else if (VECTORP (seq) || STRINGP (seq) || BIT_VECTORP (seq)) | |
| 574 ; | |
| 575 #if 0 /* removed for XEmacs 21 */ | |
|
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|
576 else if (FIXNUMP (seq)) |
| 428 | 577 /* This is too revolting to think about but maintains |
| 578 compatibility with FSF (and lots and lots of old code). */ | |
| 579 args[argnum] = Fnumber_to_string (seq); | |
| 580 #endif | |
| 581 else | |
| 582 { | |
| 583 check_losing_bytecode ("concat", seq); | |
| 584 args[argnum] = wrong_type_argument (Qsequencep, seq); | |
| 585 } | |
| 586 | |
| 587 if (args_mse) | |
| 588 { | |
| 589 if (STRINGP (seq)) | |
| 590 args_mse[argnum].string = seq; | |
| 591 else | |
| 592 args_mse[argnum].string = Qnil; | |
| 593 } | |
| 594 } | |
| 595 | |
| 596 { | |
| 597 /* Charcount is a misnomer here as we might be dealing with the | |
| 598 length of a vector or list, but emphasizes that we're not dealing | |
| 599 with Bytecounts in strings */ | |
| 600 Charcount total_length; | |
| 601 | |
| 602 for (argnum = 0, total_length = 0; argnum < nargs; argnum++) | |
| 603 { | |
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|
604 Charcount thislen = XFIXNUM (Flength (args[argnum])); |
| 428 | 605 total_length += thislen; |
| 606 } | |
| 607 | |
| 608 switch (target_type) | |
| 609 { | |
| 610 case c_cons: | |
| 611 if (total_length == 0) | |
| 851 | 612 { |
| 613 unbind_to (sdep); | |
| 614 /* In append, if all but last arg are nil, return last arg */ | |
| 615 RETURN_UNGCPRO (last_tail); | |
| 616 } | |
|
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617 val = Fmake_list (make_fixnum (total_length), Qnil); |
| 428 | 618 break; |
| 619 case c_vector: | |
| 620 val = make_vector (total_length, Qnil); | |
| 621 break; | |
| 622 case c_bit_vector: | |
| 623 val = make_bit_vector (total_length, Qzero); | |
| 624 break; | |
| 625 case c_string: | |
| 626 /* We don't make the string yet because we don't know the | |
| 627 actual number of bytes. This loop was formerly written | |
| 628 to call Fmake_string() here and then call set_string_char() | |
| 629 for each char. This seems logical enough but is waaaaaaaay | |
| 630 slow -- set_string_char() has to scan the whole string up | |
| 631 to the place where the substitution is called for in order | |
| 632 to find the place to change, and may have to do some | |
| 633 realloc()ing in order to make the char fit properly. | |
| 634 O(N^2) yuckage. */ | |
| 635 val = Qnil; | |
| 851 | 636 string_result = |
| 867 | 637 (Ibyte *) MALLOC_OR_ALLOCA (total_length * MAX_ICHAR_LEN); |
| 428 | 638 string_result_ptr = string_result; |
| 639 break; | |
| 640 default: | |
| 442 | 641 val = Qnil; |
| 2500 | 642 ABORT (); |
| 428 | 643 } |
| 644 } | |
| 645 | |
| 646 | |
| 647 if (CONSP (val)) | |
| 648 tail = val, toindex = -1; /* -1 in toindex is flag we are | |
| 649 making a list */ | |
| 650 else | |
| 651 toindex = 0; | |
| 652 | |
| 653 prev = Qnil; | |
| 654 | |
| 655 for (argnum = 0; argnum < nargs; argnum++) | |
| 656 { | |
| 657 Charcount thisleni = 0; | |
| 658 Charcount thisindex = 0; | |
| 659 Lisp_Object seq = args[argnum]; | |
| 867 | 660 Ibyte *string_source_ptr = 0; |
| 661 Ibyte *string_prev_result_ptr = string_result_ptr; | |
| 428 | 662 |
| 663 if (!CONSP (seq)) | |
| 664 { | |
|
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665 thisleni = XFIXNUM (Flength (seq)); |
| 428 | 666 } |
| 667 if (STRINGP (seq)) | |
| 668 string_source_ptr = XSTRING_DATA (seq); | |
| 669 | |
| 670 while (1) | |
| 671 { | |
| 672 Lisp_Object elt; | |
| 673 | |
| 674 /* We've come to the end of this arg, so exit. */ | |
| 675 if (NILP (seq)) | |
| 676 break; | |
| 677 | |
| 678 /* Fetch next element of `seq' arg into `elt' */ | |
| 679 if (CONSP (seq)) | |
| 680 { | |
| 681 elt = XCAR (seq); | |
| 682 seq = XCDR (seq); | |
| 683 } | |
| 684 else | |
| 685 { | |
| 686 if (thisindex >= thisleni) | |
| 687 break; | |
| 688 | |
| 689 if (STRINGP (seq)) | |
| 690 { | |
| 867 | 691 elt = make_char (itext_ichar (string_source_ptr)); |
| 692 INC_IBYTEPTR (string_source_ptr); | |
| 428 | 693 } |
| 694 else if (VECTORP (seq)) | |
| 695 elt = XVECTOR_DATA (seq)[thisindex]; | |
| 696 else if (BIT_VECTORP (seq)) | |
|
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697 elt = make_fixnum (bit_vector_bit (XBIT_VECTOR (seq), |
| 428 | 698 thisindex)); |
| 699 else | |
|
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700 elt = Felt (seq, make_fixnum (thisindex)); |
| 428 | 701 thisindex++; |
| 702 } | |
| 703 | |
| 704 /* Store into result */ | |
| 705 if (toindex < 0) | |
| 706 { | |
| 707 /* toindex negative means we are making a list */ | |
| 708 XCAR (tail) = elt; | |
| 709 prev = tail; | |
| 710 tail = XCDR (tail); | |
| 711 } | |
| 712 else if (VECTORP (val)) | |
| 713 XVECTOR_DATA (val)[toindex++] = elt; | |
| 714 else if (BIT_VECTORP (val)) | |
| 715 { | |
| 716 CHECK_BIT (elt); | |
|
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|
717 set_bit_vector_bit (XBIT_VECTOR (val), toindex++, XFIXNUM (elt)); |
| 428 | 718 } |
| 719 else | |
| 720 { | |
| 721 CHECK_CHAR_COERCE_INT (elt); | |
| 867 | 722 string_result_ptr += set_itext_ichar (string_result_ptr, |
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723 XCHAR (elt)); |
| 428 | 724 } |
| 725 } | |
| 726 if (args_mse) | |
| 727 { | |
| 728 args_mse[argnum].entry_offset = | |
| 729 string_prev_result_ptr - string_result; | |
| 730 args_mse[argnum].entry_length = | |
| 731 string_result_ptr - string_prev_result_ptr; | |
| 732 } | |
| 733 } | |
| 734 | |
| 735 /* Now we finally make the string. */ | |
| 736 if (target_type == c_string) | |
| 737 { | |
| 738 val = make_string (string_result, string_result_ptr - string_result); | |
| 739 for (argnum = 0; argnum < nargs; argnum++) | |
| 740 { | |
| 741 if (STRINGP (args_mse[argnum].string)) | |
| 742 copy_string_extents (val, args_mse[argnum].string, | |
| 743 args_mse[argnum].entry_offset, 0, | |
| 744 args_mse[argnum].entry_length); | |
| 745 } | |
| 746 } | |
| 747 | |
| 748 if (!NILP (prev)) | |
| 749 XCDR (prev) = last_tail; | |
| 750 | |
| 851 | 751 unbind_to (sdep); |
| 428 | 752 RETURN_UNGCPRO (val); |
| 753 } | |
| 754 | |
| 755 DEFUN ("copy-alist", Fcopy_alist, 1, 1, 0, /* | |
| 756 Return a copy of ALIST. | |
| 757 This is an alist which represents the same mapping from objects to objects, | |
| 758 but does not share the alist structure with ALIST. | |
| 759 The objects mapped (cars and cdrs of elements of the alist) | |
| 760 are shared, however. | |
| 761 Elements of ALIST that are not conses are also shared. | |
| 762 */ | |
| 763 (alist)) | |
| 764 { | |
| 765 Lisp_Object tail; | |
| 766 | |
| 767 if (NILP (alist)) | |
| 768 return alist; | |
| 769 CHECK_CONS (alist); | |
| 770 | |
| 771 alist = concat (1, &alist, c_cons, 0); | |
| 772 for (tail = alist; CONSP (tail); tail = XCDR (tail)) | |
| 773 { | |
| 774 Lisp_Object car = XCAR (tail); | |
| 775 | |
| 776 if (CONSP (car)) | |
| 777 XCAR (tail) = Fcons (XCAR (car), XCDR (car)); | |
| 778 } | |
| 779 return alist; | |
| 780 } | |
| 781 | |
|
5224
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|
782 DEFUN ("substring-no-properties", Fsubstring_no_properties, 1, 3, 0, /* |
|
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|
783 Return a substring of STRING, without copying the extents. |
|
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|
784 END may be nil or omitted; then the substring runs to the end of STRING. |
|
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|
785 If START or END is negative, it counts from the end. |
|
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|
786 |
|
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|
787 With one argument, copy STRING without its properties. |
|
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|
788 */ |
|
35c2b7e9c03f
Add #'substring-no-properties, omitting any extent data.
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|
789 (string, start, end)) |
|
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|
790 { |
|
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|
791 Charcount ccstart, ccend; |
|
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|
792 Bytecount bstart, blen; |
|
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|
793 Lisp_Object val; |
|
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|
794 |
|
5360
46b53e84ea7a
#'substring-no-properties: check STRING's type, get_string_range_char won't.
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diff
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|
795 CHECK_STRING (string); |
|
5224
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|
796 get_string_range_char (string, start, end, &ccstart, &ccend, |
|
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|
797 GB_HISTORICAL_STRING_BEHAVIOR); |
|
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|
798 bstart = string_index_char_to_byte (string, ccstart); |
|
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|
799 blen = string_offset_char_to_byte_len (string, bstart, ccend - ccstart); |
|
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|
800 val = make_string (XSTRING_DATA (string) + bstart, blen); |
|
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|
801 |
|
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|
802 return val; |
|
35c2b7e9c03f
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changeset
|
803 } |
|
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diff
changeset
|
804 |
|
5521
3310f36295a0
Correct a couple of comments, remove a superfluous gcpro1, fns.c
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5517
diff
changeset
|
805 /* Split STRING into a list of substrings. The substrings are the parts of |
|
3310f36295a0
Correct a couple of comments, remove a superfluous gcpro1, fns.c
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diff
changeset
|
806 original STRING separated by SEPCHAR. |
|
5035
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|
807 |
|
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|
808 If UNESCAPE is non-zero, ESCAPECHAR specifies a character that will quote |
|
b1e48555be7d
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|
809 SEPCHAR, and cause it not to split STRING. A double ESCAPECHAR is |
|
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|
810 necessary for ESCAPECHAR to appear once in a substring. */ |
|
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Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
811 |
| 771 | 812 static Lisp_Object |
| 867 | 813 split_string_by_ichar_1 (const Ibyte *string, Bytecount size, |
|
5035
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|
814 Ichar sepchar, int unescape, Ichar escapechar) |
| 771 | 815 { |
| 816 Lisp_Object result = Qnil; | |
| 867 | 817 const Ibyte *end = string + size; |
| 771 | 818 |
|
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|
819 if (unescape) |
| 771 | 820 { |
|
5035
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|
821 Ibyte unescape_buffer[64], *unescape_buffer_ptr = unescape_buffer, |
|
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|
822 escaped[MAX_ICHAR_LEN], *unescape_cursor; |
|
5036
9624523604c5
Use better types when ESCAPECHAR is specified, split_string_by_ichar_1
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5035
diff
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|
823 Bytecount unescape_buffer_size = countof (unescape_buffer), |
|
9624523604c5
Use better types when ESCAPECHAR is specified, split_string_by_ichar_1
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diff
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|
824 escaped_len = set_itext_ichar (escaped, escapechar); |
|
9624523604c5
Use better types when ESCAPECHAR is specified, split_string_by_ichar_1
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|
825 Boolint deleting_escapes, previous_escaped; |
|
9624523604c5
Use better types when ESCAPECHAR is specified, split_string_by_ichar_1
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|
826 Ichar pchar; |
|
5035
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|
827 |
|
b1e48555be7d
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changeset
|
828 while (1) |
|
b1e48555be7d
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|
829 { |
|
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|
830 const Ibyte *p = string, *cursor; |
|
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|
831 deleting_escapes = 0; |
|
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|
832 previous_escaped = 0; |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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changeset
|
833 |
|
b1e48555be7d
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changeset
|
834 while (p < end) |
|
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|
835 { |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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5034
diff
changeset
|
836 pchar = itext_ichar (p); |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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diff
changeset
|
837 |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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5034
diff
changeset
|
838 if (pchar == sepchar) |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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changeset
|
839 { |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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parents:
5034
diff
changeset
|
840 if (!previous_escaped) |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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changeset
|
841 { |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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parents:
5034
diff
changeset
|
842 break; |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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5034
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|
843 } |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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changeset
|
844 } |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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parents:
5034
diff
changeset
|
845 else if (pchar == escapechar |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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diff
changeset
|
846 /* Doubled escapes don't escape: */ |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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parents:
5034
diff
changeset
|
847 && !previous_escaped) |
|
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parents:
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changeset
|
848 { |
|
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5034
diff
changeset
|
849 ++deleting_escapes; |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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diff
changeset
|
850 previous_escaped = 1; |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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changeset
|
851 } |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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changeset
|
852 else |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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changeset
|
853 { |
|
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Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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changeset
|
854 previous_escaped = 0; |
|
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changeset
|
855 } |
|
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changeset
|
856 |
|
b1e48555be7d
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changeset
|
857 INC_IBYTEPTR (p); |
|
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changeset
|
858 } |
|
b1e48555be7d
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changeset
|
859 |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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changeset
|
860 if (deleting_escapes) |
|
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|
861 { |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
862 if (((p - string) - (escaped_len * deleting_escapes)) |
|
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changeset
|
863 > unescape_buffer_size) |
|
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|
864 { |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
865 unescape_buffer_size = |
|
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|
866 ((p - string) - (escaped_len * deleting_escapes)) * 1.5; |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
867 unescape_buffer_ptr = alloca_ibytes (unescape_buffer_size); |
|
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Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
868 } |
|
b1e48555be7d
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changeset
|
869 |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
870 cursor = string; |
|
b1e48555be7d
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|
871 unescape_cursor = unescape_buffer_ptr; |
|
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|
872 previous_escaped = 0; |
|
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changeset
|
873 |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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changeset
|
874 while (cursor < p) |
|
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changeset
|
875 { |
|
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Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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changeset
|
876 pchar = itext_ichar (cursor); |
|
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changeset
|
877 |
|
b1e48555be7d
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|
878 if (pchar != escapechar || previous_escaped) |
|
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|
879 { |
|
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|
880 memcpy (unescape_cursor, cursor, |
|
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|
881 itext_ichar_len (cursor)); |
|
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|
882 INC_IBYTEPTR (unescape_cursor); |
|
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|
883 } |
|
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|
884 |
|
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|
885 previous_escaped = !previous_escaped |
|
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|
886 && (pchar == escapechar); |
|
b1e48555be7d
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|
887 |
|
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|
888 INC_IBYTEPTR (cursor); |
|
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|
889 } |
|
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|
890 |
|
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|
891 result = Fcons (make_string (unescape_buffer_ptr, |
|
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|
892 unescape_cursor |
|
b1e48555be7d
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|
893 - unescape_buffer_ptr), |
|
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|
894 result); |
|
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|
895 } |
|
b1e48555be7d
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|
896 else |
|
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|
897 { |
|
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|
898 result = Fcons (make_string (string, p - string), result); |
|
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|
899 } |
|
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|
900 if (p < end) |
|
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|
901 { |
|
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|
902 string = p; |
|
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|
903 INC_IBYTEPTR (string); /* skip sepchar */ |
|
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|
904 } |
|
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|
905 else |
|
b1e48555be7d
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|
906 break; |
|
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Aidan Kehoe <kehoea@parhasard.net>
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|
907 } |
|
b1e48555be7d
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|
908 } |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
909 else |
|
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Aidan Kehoe <kehoea@parhasard.net>
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|
910 { |
|
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Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
911 while (1) |
|
b1e48555be7d
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|
912 { |
|
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|
913 const Ibyte *p = string; |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
914 while (p < end) |
|
b1e48555be7d
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diff
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|
915 { |
|
b1e48555be7d
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|
916 if (itext_ichar (p) == sepchar) |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
917 break; |
|
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Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
918 INC_IBYTEPTR (p); |
|
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|
919 } |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
920 result = Fcons (make_string (string, p - string), result); |
|
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Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
921 if (p < end) |
|
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Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
922 { |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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5034
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|
923 string = p; |
|
b1e48555be7d
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|
924 INC_IBYTEPTR (string); /* skip sepchar */ |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
925 } |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
926 else |
|
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|
927 break; |
|
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|
928 } |
| 771 | 929 } |
| 930 return Fnreverse (result); | |
| 931 } | |
| 932 | |
| 933 /* The same as the above, except PATH is an external C string (it is | |
| 934 converted using Qfile_name), and sepchar is hardcoded to SEPCHAR | |
| 935 (':' or whatever). */ | |
| 936 Lisp_Object | |
| 937 split_external_path (const Extbyte *path) | |
| 938 { | |
| 939 Bytecount newlen; | |
| 867 | 940 Ibyte *newpath; |
| 771 | 941 if (!path) |
| 942 return Qnil; | |
| 943 | |
| 944 TO_INTERNAL_FORMAT (C_STRING, path, ALLOCA, (newpath, newlen), Qfile_name); | |
| 945 | |
| 946 /* #### Does this make sense? It certainly does for | |
| 947 split_env_path(), but it looks dubious here. Does any code | |
| 948 depend on split_external_path("") returning nil instead of an empty | |
| 949 string? */ | |
| 950 if (!newlen) | |
| 951 return Qnil; | |
| 952 | |
|
5035
b1e48555be7d
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|
953 return split_string_by_ichar_1 (newpath, newlen, SEPCHAR, 0, 0); |
| 771 | 954 } |
| 955 | |
| 956 Lisp_Object | |
| 867 | 957 split_env_path (const CIbyte *evarname, const Ibyte *default_) |
| 771 | 958 { |
| 867 | 959 const Ibyte *path = 0; |
| 771 | 960 if (evarname) |
| 961 path = egetenv (evarname); | |
| 962 if (!path) | |
| 963 path = default_; | |
| 964 if (!path) | |
| 965 return Qnil; | |
|
5035
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Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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parents:
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|
966 return split_string_by_ichar_1 (path, qxestrlen (path), SEPCHAR, 0, 0); |
| 771 | 967 } |
| 968 | |
|
5504
d3e0482c7899
Move #'split-path to subr.el, as was always the intention.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5475
diff
changeset
|
969 /* Ben thinks [or thought in 1998] this function should not exist or be |
|
d3e0482c7899
Move #'split-path to subr.el, as was always the intention.
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diff
changeset
|
970 exported to Lisp. It's used to define #'split-path in subr.el, and for |
|
d3e0482c7899
Move #'split-path to subr.el, as was always the intention.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5475
diff
changeset
|
971 parsing Carbon font names under that window system. */ |
| 771 | 972 |
|
5035
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
973 DEFUN ("split-string-by-char", Fsplit_string_by_char, 2, 3, 0, /* |
| 771 | 974 Split STRING into a list of substrings originally separated by SEPCHAR. |
|
5035
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|
975 |
|
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|
976 With optional ESCAPE-CHAR, any instances of SEPCHAR preceded by that |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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parents:
5034
diff
changeset
|
977 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.
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changeset
|
978 will be necessary for a single ESCAPE-CHAR to appear in the output string. |
| 771 | 979 */ |
|
5035
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Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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|
980 (string, sepchar, escape_char)) |
| 771 | 981 { |
|
5035
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
982 Ichar escape_ichar = 0; |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
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|
983 |
| 771 | 984 CHECK_STRING (string); |
| 985 CHECK_CHAR (sepchar); | |
|
5035
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changeset
|
986 if (!NILP (escape_char)) |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
Aidan Kehoe <kehoea@parhasard.net>
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|
987 { |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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changeset
|
988 CHECK_CHAR (escape_char); |
|
b1e48555be7d
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|
989 escape_ichar = XCHAR (escape_char); |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
990 } |
| 867 | 991 return split_string_by_ichar_1 (XSTRING_DATA (string), |
|
5035
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Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
992 XSTRING_LENGTH (string), |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
993 XCHAR (sepchar), |
|
b1e48555be7d
Add a new optional ESCAPE-CHAR argument to #'split-string-by-char.
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|
994 !NILP (escape_char), escape_ichar); |
| 771 | 995 } |
| 428 | 996 |
| 997 DEFUN ("nthcdr", Fnthcdr, 2, 2, 0, /* | |
| 998 Take cdr N times on LIST, and return the result. | |
| 999 */ | |
| 1000 (n, list)) | |
| 1001 { | |
| 1920 | 1002 /* This function can GC */ |
| 647 | 1003 REGISTER EMACS_INT i; |
| 428 | 1004 REGISTER Lisp_Object tail = list; |
| 1005 CHECK_NATNUM (n); | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
1006 for (i = BIGNUMP (n) ? 1 + MOST_POSITIVE_FIXNUM : XFIXNUM (n); i; i--) |
| 428 | 1007 { |
| 1008 if (CONSP (tail)) | |
| 1009 tail = XCDR (tail); | |
| 1010 else if (NILP (tail)) | |
| 1011 return Qnil; | |
| 1012 else | |
| 1013 { | |
| 1014 tail = wrong_type_argument (Qlistp, tail); | |
| 1015 i++; | |
| 1016 } | |
| 1017 } | |
| 1018 return tail; | |
| 1019 } | |
| 1020 | |
| 1021 DEFUN ("nth", Fnth, 2, 2, 0, /* | |
| 1022 Return the Nth element of LIST. | |
| 1023 N counts from zero. If LIST is not that long, nil is returned. | |
| 1024 */ | |
| 1025 (n, list)) | |
| 1026 { | |
| 1920 | 1027 /* This function can GC */ |
| 428 | 1028 return Fcar (Fnthcdr (n, list)); |
| 1029 } | |
| 1030 | |
| 1031 DEFUN ("last", Flast, 1, 2, 0, /* | |
| 1032 Return the tail of list LIST, of length N (default 1). | |
| 1033 LIST may be a dotted list, but not a circular list. | |
| 1034 Optional argument N must be a non-negative integer. | |
| 1035 If N is zero, then the atom that terminates the list is returned. | |
| 1036 If N is greater than the length of LIST, then LIST itself is returned. | |
| 1037 */ | |
| 1038 (list, n)) | |
| 1039 { | |
| 1040 EMACS_INT int_n, count; | |
| 1041 Lisp_Object retval, tortoise, hare; | |
| 1042 | |
| 1043 CHECK_LIST (list); | |
| 1044 | |
| 1045 if (NILP (n)) | |
| 1046 int_n = 1; | |
| 1047 else | |
| 1048 { | |
| 1049 CHECK_NATNUM (n); | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1050 int_n = BIGNUMP (n) ? 1 + MOST_POSITIVE_FIXNUM : XFIXNUM (n); |
| 428 | 1051 } |
| 1052 | |
| 1053 for (retval = tortoise = hare = list, count = 0; | |
| 1054 CONSP (hare); | |
| 1055 hare = XCDR (hare), | |
| 1056 (int_n-- <= 0 ? ((void) (retval = XCDR (retval))) : (void)0), | |
| 1057 count++) | |
| 1058 { | |
| 1059 if (count < CIRCULAR_LIST_SUSPICION_LENGTH) continue; | |
| 1060 | |
| 1061 if (count & 1) | |
| 1062 tortoise = XCDR (tortoise); | |
| 1063 if (EQ (hare, tortoise)) | |
| 1064 signal_circular_list_error (list); | |
| 1065 } | |
| 1066 | |
| 1067 return retval; | |
| 1068 } | |
| 1069 | |
| 1070 DEFUN ("nbutlast", Fnbutlast, 1, 2, 0, /* | |
| 1071 Modify LIST to remove the last N (default 1) elements. | |
|
5285
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Tighten up Common Lisp compatibility, #'butlast, #'nbutlast, #'tailp, #'ldiff
Aidan Kehoe <kehoea@parhasard.net>
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5283
diff
changeset
|
1072 |
| 428 | 1073 If LIST has N or fewer elements, nil is returned and LIST is unmodified. |
|
5285
99de5fd48e87
Tighten up Common Lisp compatibility, #'butlast, #'nbutlast, #'tailp, #'ldiff
Aidan Kehoe <kehoea@parhasard.net>
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5283
diff
changeset
|
1074 Otherwise, LIST may be dotted, but not circular. |
| 428 | 1075 */ |
| 1076 (list, n)) | |
| 1077 { | |
|
5285
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Tighten up Common Lisp compatibility, #'butlast, #'nbutlast, #'tailp, #'ldiff
Aidan Kehoe <kehoea@parhasard.net>
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5283
diff
changeset
|
1078 Elemcount int_n = 1; |
| 428 | 1079 |
| 1080 CHECK_LIST (list); | |
| 1081 | |
|
5285
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|
1082 if (!NILP (n)) |
| 428 | 1083 { |
| 1084 CHECK_NATNUM (n); | |
|
5581
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|
1085 int_n = BIGNUMP (n) ? 1 + MOST_POSITIVE_FIXNUM : XFIXNUM (n); |
| 428 | 1086 } |
| 1087 | |
|
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|
1088 if (CONSP (list)) |
|
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1089 { |
|
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|
1090 Lisp_Object last_cons = list; |
|
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|
1091 |
|
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|
1092 EXTERNAL_LIST_LOOP_3 (elt, list, tail) |
|
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1093 { |
|
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1094 if (int_n-- < 0) |
|
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1095 { |
|
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1096 last_cons = XCDR (last_cons); |
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1097 } |
|
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|
1098 |
|
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1099 if (!CONSP (XCDR (tail))) |
|
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1100 { |
|
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1101 break; |
|
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1102 } |
|
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1103 } |
|
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1104 |
|
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1105 if (int_n >= 0) |
|
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1106 { |
|
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1107 return Qnil; |
|
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1108 } |
|
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1109 |
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|
1110 XCDR (last_cons) = Qnil; |
|
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1111 } |
|
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1112 |
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1113 return list; |
| 428 | 1114 } |
| 1115 | |
| 1116 DEFUN ("butlast", Fbutlast, 1, 2, 0, /* | |
| 1117 Return a copy of LIST with the last N (default 1) elements removed. | |
|
5285
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1118 |
| 428 | 1119 If LIST has N or fewer elements, nil is returned. |
|
5285
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1120 Otherwise, LIST may be dotted, but not circular, and `(butlast LIST 0)' |
|
99de5fd48e87
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changeset
|
1121 converts a dotted into a true list. |
| 428 | 1122 */ |
| 1123 (list, n)) | |
| 1124 { | |
|
5285
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1125 Lisp_Object retval = Qnil, retval_tail = Qnil; |
|
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|
1126 Elemcount int_n = 1; |
| 428 | 1127 |
| 1128 CHECK_LIST (list); | |
| 1129 | |
|
5285
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|
1130 if (!NILP (n)) |
| 428 | 1131 { |
| 1132 CHECK_NATNUM (n); | |
|
5581
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1133 int_n = BIGNUMP (n) ? 1 + MOST_POSITIVE_FIXNUM : XFIXNUM (n); |
| 428 | 1134 } |
| 1135 | |
|
5285
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|
1136 if (CONSP (list)) |
|
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|
1137 { |
|
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1138 Lisp_Object tail = list; |
|
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1139 |
|
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changeset
|
1140 EXTERNAL_LIST_LOOP_3 (elt, list, list_tail) |
|
99de5fd48e87
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|
1141 { |
|
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|
1142 if (--int_n < 0) |
|
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|
1143 { |
|
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|
1144 if (NILP (retval_tail)) |
|
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|
1145 { |
|
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1146 retval = retval_tail = Fcons (XCAR (tail), Qnil); |
|
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|
1147 } |
|
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|
1148 else |
|
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|
1149 { |
|
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|
1150 XSETCDR (retval_tail, Fcons (XCAR (tail), Qnil)); |
|
99de5fd48e87
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|
1151 retval_tail = XCDR (retval_tail); |
|
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|
1152 } |
|
99de5fd48e87
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|
1153 |
|
99de5fd48e87
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|
1154 tail = XCDR (tail); |
|
99de5fd48e87
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|
1155 } |
|
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|
1156 |
|
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|
1157 if (!CONSP (XCDR (list_tail))) |
|
99de5fd48e87
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|
1158 { |
|
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|
1159 break; |
|
99de5fd48e87
Tighten up Common Lisp compatibility, #'butlast, #'nbutlast, #'tailp, #'ldiff
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|
1160 } |
|
99de5fd48e87
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|
1161 } |
|
99de5fd48e87
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|
1162 } |
|
99de5fd48e87
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|
1163 |
|
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|
1164 return retval; |
| 428 | 1165 } |
| 1166 | |
| 1167 | |
| 1168 /************************************************************************/ | |
| 1169 /* property-list functions */ | |
| 1170 /************************************************************************/ | |
| 1171 | |
| 1172 /* For properties of text, we need to do order-insensitive comparison of | |
| 1173 plists. That is, we need to compare two plists such that they are the | |
| 1174 same if they have the same set of keys, and equivalent values. | |
| 1175 So (a 1 b 2) would be equal to (b 2 a 1). | |
| 1176 | |
| 1177 NIL_MEANS_NOT_PRESENT is as in `plists-eq' etc. | |
| 1178 LAXP means use `equal' for comparisons. | |
| 1179 */ | |
| 1180 int | |
| 1181 plists_differ (Lisp_Object a, Lisp_Object b, int nil_means_not_present, | |
|
4906
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|
1182 int laxp, int depth, int foldcase) |
| 428 | 1183 { |
| 438 | 1184 int eqp = (depth == -1); /* -1 as depth means use eq, not equal. */ |
| 428 | 1185 int la, lb, m, i, fill; |
| 1186 Lisp_Object *keys, *vals; | |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
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changeset
|
1187 Boolbyte *flags; |
| 428 | 1188 Lisp_Object rest; |
| 1189 | |
| 1190 if (NILP (a) && NILP (b)) | |
| 1191 return 0; | |
| 1192 | |
| 1193 Fcheck_valid_plist (a); | |
| 1194 Fcheck_valid_plist (b); | |
| 1195 | |
|
5581
56144c8593a8
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|
1196 la = XFIXNUM (Flength (a)); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
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|
1197 lb = XFIXNUM (Flength (b)); |
| 428 | 1198 m = (la > lb ? la : lb); |
| 1199 fill = 0; | |
| 1200 keys = alloca_array (Lisp_Object, m); | |
| 1201 vals = alloca_array (Lisp_Object, m); | |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
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changeset
|
1202 flags = alloca_array (Boolbyte, m); |
| 428 | 1203 |
| 1204 /* First extract the pairs from A. */ | |
| 1205 for (rest = a; !NILP (rest); rest = XCDR (XCDR (rest))) | |
| 1206 { | |
| 1207 Lisp_Object k = XCAR (rest); | |
| 1208 Lisp_Object v = XCAR (XCDR (rest)); | |
| 1209 /* Maybe be Ebolified. */ | |
| 1210 if (nil_means_not_present && NILP (v)) continue; | |
| 1211 keys [fill] = k; | |
| 1212 vals [fill] = v; | |
| 1213 flags[fill] = 0; | |
| 1214 fill++; | |
| 1215 } | |
| 1216 /* Now iterate over B, and stop if we find something that's not in A, | |
| 1217 or that doesn't match. As we match, mark them. */ | |
| 1218 for (rest = b; !NILP (rest); rest = XCDR (XCDR (rest))) | |
| 1219 { | |
| 1220 Lisp_Object k = XCAR (rest); | |
| 1221 Lisp_Object v = XCAR (XCDR (rest)); | |
| 1222 /* Maybe be Ebolified. */ | |
| 1223 if (nil_means_not_present && NILP (v)) continue; | |
| 1224 for (i = 0; i < fill; i++) | |
| 1225 { | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
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changeset
|
1226 if (!laxp ? EQ (k, keys [i]) : |
|
6ef8256a020a
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Ben Wing <ben@xemacs.org>
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changeset
|
1227 internal_equal_0 (k, keys [i], depth, foldcase)) |
| 428 | 1228 { |
| 434 | 1229 if (eqp |
| 1230 /* We narrowly escaped being Ebolified here. */ | |
| 1231 ? !EQ_WITH_EBOLA_NOTICE (v, vals [i]) | |
|
4906
6ef8256a020a
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Ben Wing <ben@xemacs.org>
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4797
diff
changeset
|
1232 : !internal_equal_0 (v, vals [i], depth, foldcase)) |
| 428 | 1233 /* a property in B has a different value than in A */ |
| 1234 goto MISMATCH; | |
| 1235 flags [i] = 1; | |
| 1236 break; | |
| 1237 } | |
| 1238 } | |
| 1239 if (i == fill) | |
| 1240 /* there are some properties in B that are not in A */ | |
| 1241 goto MISMATCH; | |
| 1242 } | |
| 1243 /* Now check to see that all the properties in A were also in B */ | |
| 1244 for (i = 0; i < fill; i++) | |
| 1245 if (flags [i] == 0) | |
| 1246 goto MISMATCH; | |
| 1247 | |
| 1248 /* Ok. */ | |
| 1249 return 0; | |
| 1250 | |
| 1251 MISMATCH: | |
| 1252 return 1; | |
| 1253 } | |
| 1254 | |
| 1255 DEFUN ("plists-eq", Fplists_eq, 2, 3, 0, /* | |
| 1256 Return non-nil if property lists A and B are `eq'. | |
| 1257 A property list is an alternating list of keywords and values. | |
| 1258 This function does order-insensitive comparisons of the property lists: | |
| 1259 For example, the property lists '(a 1 b 2) and '(b 2 a 1) are equal. | |
| 1260 Comparison between values is done using `eq'. See also `plists-equal'. | |
| 1261 If optional arg NIL-MEANS-NOT-PRESENT is non-nil, then a property with | |
| 1262 a nil value is ignored. This feature is a virus that has infected | |
| 1263 old Lisp implementations, but should not be used except for backward | |
| 1264 compatibility. | |
| 1265 */ | |
| 1266 (a, b, nil_means_not_present)) | |
| 1267 { | |
|
4906
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implement equalp in C, fix case-folding, add equal() method for keymaps
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changeset
|
1268 return (plists_differ (a, b, !NILP (nil_means_not_present), 0, -1, 0) |
| 428 | 1269 ? Qnil : Qt); |
| 1270 } | |
| 1271 | |
| 1272 DEFUN ("plists-equal", Fplists_equal, 2, 3, 0, /* | |
| 1273 Return non-nil if property lists A and B are `equal'. | |
| 1274 A property list is an alternating list of keywords and values. This | |
| 1275 function does order-insensitive comparisons of the property lists: For | |
| 1276 example, the property lists '(a 1 b 2) and '(b 2 a 1) are equal. | |
| 1277 Comparison between values is done using `equal'. See also `plists-eq'. | |
| 1278 If optional arg NIL-MEANS-NOT-PRESENT is non-nil, then a property with | |
| 1279 a nil value is ignored. This feature is a virus that has infected | |
| 1280 old Lisp implementations, but should not be used except for backward | |
| 1281 compatibility. | |
| 1282 */ | |
| 1283 (a, b, nil_means_not_present)) | |
| 1284 { | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
1285 return (plists_differ (a, b, !NILP (nil_means_not_present), 0, 1, 0) |
| 428 | 1286 ? Qnil : Qt); |
| 1287 } | |
| 1288 | |
| 1289 | |
| 1290 DEFUN ("lax-plists-eq", Flax_plists_eq, 2, 3, 0, /* | |
| 1291 Return non-nil if lax property lists A and B are `eq'. | |
| 1292 A property list is an alternating list of keywords and values. | |
| 1293 This function does order-insensitive comparisons of the property lists: | |
| 1294 For example, the property lists '(a 1 b 2) and '(b 2 a 1) are equal. | |
| 1295 Comparison between values is done using `eq'. See also `plists-equal'. | |
| 1296 A lax property list is like a regular one except that comparisons between | |
| 1297 keywords is done using `equal' instead of `eq'. | |
| 1298 If optional arg NIL-MEANS-NOT-PRESENT is non-nil, then a property with | |
| 1299 a nil value is ignored. This feature is a virus that has infected | |
| 1300 old Lisp implementations, but should not be used except for backward | |
| 1301 compatibility. | |
| 1302 */ | |
| 1303 (a, b, nil_means_not_present)) | |
| 1304 { | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
1305 return (plists_differ (a, b, !NILP (nil_means_not_present), 1, -1, 0) |
| 428 | 1306 ? Qnil : Qt); |
| 1307 } | |
| 1308 | |
| 1309 DEFUN ("lax-plists-equal", Flax_plists_equal, 2, 3, 0, /* | |
| 1310 Return non-nil if lax property lists A and B are `equal'. | |
| 1311 A property list is an alternating list of keywords and values. This | |
| 1312 function does order-insensitive comparisons of the property lists: For | |
| 1313 example, the property lists '(a 1 b 2) and '(b 2 a 1) are equal. | |
| 1314 Comparison between values is done using `equal'. See also `plists-eq'. | |
| 1315 A lax property list is like a regular one except that comparisons between | |
| 1316 keywords is done using `equal' instead of `eq'. | |
| 1317 If optional arg NIL-MEANS-NOT-PRESENT is non-nil, then a property with | |
| 1318 a nil value is ignored. This feature is a virus that has infected | |
| 1319 old Lisp implementations, but should not be used except for backward | |
| 1320 compatibility. | |
| 1321 */ | |
| 1322 (a, b, nil_means_not_present)) | |
| 1323 { | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
1324 return (plists_differ (a, b, !NILP (nil_means_not_present), 1, 1, 0) |
| 428 | 1325 ? Qnil : Qt); |
| 1326 } | |
| 1327 | |
| 1328 /* Return the value associated with key PROPERTY in property list PLIST. | |
| 1329 Return nil if key not found. This function is used for internal | |
| 1330 property lists that cannot be directly manipulated by the user. | |
| 1331 */ | |
| 1332 | |
| 1333 Lisp_Object | |
| 1334 internal_plist_get (Lisp_Object plist, Lisp_Object property) | |
| 1335 { | |
| 1336 Lisp_Object tail; | |
| 1337 | |
| 1338 for (tail = plist; !NILP (tail); tail = XCDR (XCDR (tail))) | |
| 1339 { | |
| 1340 if (EQ (XCAR (tail), property)) | |
| 1341 return XCAR (XCDR (tail)); | |
| 1342 } | |
| 1343 | |
| 1344 return Qunbound; | |
| 1345 } | |
| 1346 | |
| 1347 /* Set PLIST's value for PROPERTY to VALUE. Analogous to | |
| 1348 internal_plist_get(). */ | |
| 1349 | |
| 1350 void | |
| 1351 internal_plist_put (Lisp_Object *plist, Lisp_Object property, | |
| 1352 Lisp_Object value) | |
| 1353 { | |
| 1354 Lisp_Object tail; | |
| 1355 | |
| 1356 for (tail = *plist; !NILP (tail); tail = XCDR (XCDR (tail))) | |
| 1357 { | |
| 1358 if (EQ (XCAR (tail), property)) | |
| 1359 { | |
| 1360 XCAR (XCDR (tail)) = value; | |
| 1361 return; | |
| 1362 } | |
| 1363 } | |
| 1364 | |
| 1365 *plist = Fcons (property, Fcons (value, *plist)); | |
| 1366 } | |
| 1367 | |
| 1368 int | |
| 1369 internal_remprop (Lisp_Object *plist, Lisp_Object property) | |
| 1370 { | |
| 1371 Lisp_Object tail, prev; | |
| 1372 | |
| 1373 for (tail = *plist, prev = Qnil; | |
| 1374 !NILP (tail); | |
| 1375 tail = XCDR (XCDR (tail))) | |
| 1376 { | |
| 1377 if (EQ (XCAR (tail), property)) | |
| 1378 { | |
| 1379 if (NILP (prev)) | |
| 1380 *plist = XCDR (XCDR (tail)); | |
| 1381 else | |
| 1382 XCDR (XCDR (prev)) = XCDR (XCDR (tail)); | |
| 1383 return 1; | |
| 1384 } | |
| 1385 else | |
| 1386 prev = tail; | |
| 1387 } | |
| 1388 | |
| 1389 return 0; | |
| 1390 } | |
| 1391 | |
| 1392 /* Called on a malformed property list. BADPLACE should be some | |
| 1393 place where truncating will form a good list -- i.e. we shouldn't | |
| 1394 result in a list with an odd length. */ | |
| 1395 | |
| 1396 static Lisp_Object | |
| 578 | 1397 bad_bad_bunny (Lisp_Object *plist, Lisp_Object *badplace, Error_Behavior errb) |
| 428 | 1398 { |
| 1399 if (ERRB_EQ (errb, ERROR_ME)) | |
| 1400 return Fsignal (Qmalformed_property_list, list2 (*plist, *badplace)); | |
| 1401 else | |
| 1402 { | |
| 1403 if (ERRB_EQ (errb, ERROR_ME_WARN)) | |
| 1404 { | |
| 1405 warn_when_safe_lispobj | |
| 1406 (Qlist, Qwarning, | |
| 771 | 1407 list2 (build_msg_string |
| 428 | 1408 ("Malformed property list -- list has been truncated"), |
| 1409 *plist)); | |
| 793 | 1410 /* #### WARNING: This is more dangerous than it seems; perhaps |
| 1411 not a good idea. It also violates the principle of least | |
| 1412 surprise -- passing in ERROR_ME_WARN causes truncation, but | |
| 1413 ERROR_ME and ERROR_ME_NOT don't. */ | |
| 428 | 1414 *badplace = Qnil; |
| 1415 } | |
| 1416 return Qunbound; | |
| 1417 } | |
| 1418 } | |
| 1419 | |
| 1420 /* Called on a circular property list. BADPLACE should be some place | |
| 1421 where truncating will result in an even-length list, as above. | |
| 1422 If doesn't particularly matter where we truncate -- anywhere we | |
| 1423 truncate along the entire list will break the circularity, because | |
| 1424 it will create a terminus and the list currently doesn't have one. | |
| 1425 */ | |
| 1426 | |
| 1427 static Lisp_Object | |
| 578 | 1428 bad_bad_turtle (Lisp_Object *plist, Lisp_Object *badplace, Error_Behavior errb) |
| 428 | 1429 { |
| 1430 if (ERRB_EQ (errb, ERROR_ME)) | |
| 1431 return Fsignal (Qcircular_property_list, list1 (*plist)); | |
| 1432 else | |
| 1433 { | |
| 1434 if (ERRB_EQ (errb, ERROR_ME_WARN)) | |
| 1435 { | |
| 1436 warn_when_safe_lispobj | |
| 1437 (Qlist, Qwarning, | |
| 771 | 1438 list2 (build_msg_string |
| 428 | 1439 ("Circular property list -- list has been truncated"), |
| 1440 *plist)); | |
| 793 | 1441 /* #### WARNING: This is more dangerous than it seems; perhaps |
| 1442 not a good idea. It also violates the principle of least | |
| 1443 surprise -- passing in ERROR_ME_WARN causes truncation, but | |
| 1444 ERROR_ME and ERROR_ME_NOT don't. */ | |
| 428 | 1445 *badplace = Qnil; |
| 1446 } | |
| 1447 return Qunbound; | |
| 1448 } | |
| 1449 } | |
| 1450 | |
| 1451 /* Advance the tortoise pointer by two (one iteration of a property-list | |
| 1452 loop) and the hare pointer by four and verify that no malformations | |
| 1453 or circularities exist. If so, return zero and store a value into | |
| 1454 RETVAL that should be returned by the calling function. Otherwise, | |
| 1455 return 1. See external_plist_get(). | |
| 1456 */ | |
| 1457 | |
| 1458 static int | |
| 1459 advance_plist_pointers (Lisp_Object *plist, | |
| 1460 Lisp_Object **tortoise, Lisp_Object **hare, | |
| 578 | 1461 Error_Behavior errb, Lisp_Object *retval) |
| 428 | 1462 { |
| 1463 int i; | |
| 1464 Lisp_Object *tortsave = *tortoise; | |
| 1465 | |
| 1466 /* Note that our "fixing" may be more brutal than necessary, | |
| 1467 but it's the user's own problem, not ours, if they went in and | |
| 1468 manually fucked up a plist. */ | |
| 1469 | |
| 1470 for (i = 0; i < 2; i++) | |
| 1471 { | |
| 1472 /* This is a standard iteration of a defensive-loop-checking | |
| 1473 loop. We just do it twice because we want to advance past | |
| 1474 both the property and its value. | |
| 1475 | |
| 1476 If the pointer indirection is confusing you, remember that | |
| 1477 one level of indirection on the hare and tortoise pointers | |
| 1478 is only due to pass-by-reference for this function. The other | |
| 1479 level is so that the plist can be fixed in place. */ | |
| 1480 | |
| 1481 /* When we reach the end of a well-formed plist, **HARE is | |
| 1482 nil. In that case, we don't do anything at all except | |
| 1483 advance TORTOISE by one. Otherwise, we advance HARE | |
| 1484 by two (making sure it's OK to do so), then advance | |
| 1485 TORTOISE by one (it will always be OK to do so because | |
| 1486 the HARE is always ahead of the TORTOISE and will have | |
| 1487 already verified the path), then make sure TORTOISE and | |
| 1488 HARE don't contain the same non-nil object -- if the | |
| 1489 TORTOISE and the HARE ever meet, then obviously we're | |
| 1490 in a circularity, and if we're in a circularity, then | |
| 1491 the TORTOISE and the HARE can't cross paths without | |
| 1492 meeting, since the HARE only gains one step over the | |
| 1493 TORTOISE per iteration. */ | |
| 1494 | |
| 1495 if (!NILP (**hare)) | |
| 1496 { | |
| 1497 Lisp_Object *haresave = *hare; | |
| 1498 if (!CONSP (**hare)) | |
| 1499 { | |
| 1500 *retval = bad_bad_bunny (plist, haresave, errb); | |
| 1501 return 0; | |
| 1502 } | |
| 1503 *hare = &XCDR (**hare); | |
| 1504 /* In a non-plist, we'd check here for a nil value for | |
| 1505 **HARE, which is OK (it just means the list has an | |
| 1506 odd number of elements). In a plist, it's not OK | |
| 1507 for the list to have an odd number of elements. */ | |
| 1508 if (!CONSP (**hare)) | |
| 1509 { | |
| 1510 *retval = bad_bad_bunny (plist, haresave, errb); | |
| 1511 return 0; | |
| 1512 } | |
| 1513 *hare = &XCDR (**hare); | |
| 1514 } | |
| 1515 | |
| 1516 *tortoise = &XCDR (**tortoise); | |
| 1517 if (!NILP (**hare) && EQ (**tortoise, **hare)) | |
| 1518 { | |
| 1519 *retval = bad_bad_turtle (plist, tortsave, errb); | |
| 1520 return 0; | |
| 1521 } | |
| 1522 } | |
| 1523 | |
| 1524 return 1; | |
| 1525 } | |
| 1526 | |
| 1527 /* Return the value of PROPERTY from PLIST, or Qunbound if | |
| 1528 property is not on the list. | |
| 1529 | |
| 1530 PLIST is a Lisp-accessible property list, meaning that it | |
| 1531 has to be checked for malformations and circularities. | |
| 1532 | |
| 1533 If ERRB is ERROR_ME, an error will be signalled. Otherwise, the | |
| 1534 function will never signal an error; and if ERRB is ERROR_ME_WARN, | |
| 1535 on finding a malformation or a circularity, it issues a warning and | |
| 1536 attempts to silently fix the problem. | |
| 1537 | |
| 1538 A pointer to PLIST is passed in so that PLIST can be successfully | |
| 1539 "fixed" even if the error is at the beginning of the plist. */ | |
| 1540 | |
| 1541 Lisp_Object | |
| 1542 external_plist_get (Lisp_Object *plist, Lisp_Object property, | |
| 578 | 1543 int laxp, Error_Behavior errb) |
| 428 | 1544 { |
| 1545 Lisp_Object *tortoise = plist; | |
| 1546 Lisp_Object *hare = plist; | |
| 1547 | |
| 1548 while (!NILP (*tortoise)) | |
| 1549 { | |
| 1550 Lisp_Object *tortsave = tortoise; | |
| 1551 Lisp_Object retval; | |
| 1552 | |
| 1553 /* We do the standard tortoise/hare march. We isolate the | |
| 1554 grungy stuff to do this in advance_plist_pointers(), though. | |
| 1555 To us, all this function does is advance the tortoise | |
| 1556 pointer by two and the hare pointer by four and make sure | |
| 1557 everything's OK. We first advance the pointers and then | |
| 1558 check if a property matched; this ensures that our | |
| 1559 check for a matching property is safe. */ | |
| 1560 | |
| 1561 if (!advance_plist_pointers (plist, &tortoise, &hare, errb, &retval)) | |
| 1562 return retval; | |
| 1563 | |
| 1564 if (!laxp ? EQ (XCAR (*tortsave), property) | |
| 1565 : internal_equal (XCAR (*tortsave), property, 0)) | |
| 1566 return XCAR (XCDR (*tortsave)); | |
| 1567 } | |
| 1568 | |
| 1569 return Qunbound; | |
| 1570 } | |
| 1571 | |
| 1572 /* Set PLIST's value for PROPERTY to VALUE, given a possibly | |
| 1573 malformed or circular plist. Analogous to external_plist_get(). */ | |
| 1574 | |
| 1575 void | |
| 1576 external_plist_put (Lisp_Object *plist, Lisp_Object property, | |
| 578 | 1577 Lisp_Object value, int laxp, Error_Behavior errb) |
| 428 | 1578 { |
| 1579 Lisp_Object *tortoise = plist; | |
| 1580 Lisp_Object *hare = plist; | |
| 1581 | |
| 1582 while (!NILP (*tortoise)) | |
| 1583 { | |
| 1584 Lisp_Object *tortsave = tortoise; | |
| 1585 Lisp_Object retval; | |
| 1586 | |
| 1587 /* See above */ | |
| 1588 if (!advance_plist_pointers (plist, &tortoise, &hare, errb, &retval)) | |
| 1589 return; | |
| 1590 | |
| 1591 if (!laxp ? EQ (XCAR (*tortsave), property) | |
| 1592 : internal_equal (XCAR (*tortsave), property, 0)) | |
| 1593 { | |
| 1594 XCAR (XCDR (*tortsave)) = value; | |
| 1595 return; | |
| 1596 } | |
| 1597 } | |
| 1598 | |
| 1599 *plist = Fcons (property, Fcons (value, *plist)); | |
| 1600 } | |
| 1601 | |
| 1602 int | |
| 1603 external_remprop (Lisp_Object *plist, Lisp_Object property, | |
| 578 | 1604 int laxp, Error_Behavior errb) |
| 428 | 1605 { |
| 1606 Lisp_Object *tortoise = plist; | |
| 1607 Lisp_Object *hare = plist; | |
| 1608 | |
| 1609 while (!NILP (*tortoise)) | |
| 1610 { | |
| 1611 Lisp_Object *tortsave = tortoise; | |
| 1612 Lisp_Object retval; | |
| 1613 | |
| 1614 /* See above */ | |
| 1615 if (!advance_plist_pointers (plist, &tortoise, &hare, errb, &retval)) | |
| 1616 return 0; | |
| 1617 | |
| 1618 if (!laxp ? EQ (XCAR (*tortsave), property) | |
| 1619 : internal_equal (XCAR (*tortsave), property, 0)) | |
| 1620 { | |
| 1621 /* Now you see why it's so convenient to have that level | |
| 1622 of indirection. */ | |
| 1623 *tortsave = XCDR (XCDR (*tortsave)); | |
| 1624 return 1; | |
| 1625 } | |
| 1626 } | |
| 1627 | |
| 1628 return 0; | |
| 1629 } | |
| 1630 | |
| 1631 DEFUN ("plist-get", Fplist_get, 2, 3, 0, /* | |
| 1632 Extract a value from a property list. | |
| 1633 PLIST is a property list, which is a list of the form | |
| 444 | 1634 \(PROPERTY1 VALUE1 PROPERTY2 VALUE2...). |
| 1635 PROPERTY is usually a symbol. | |
| 1636 This function returns the value corresponding to the PROPERTY, | |
| 1637 or DEFAULT if PROPERTY is not one of the properties on the list. | |
| 428 | 1638 */ |
| 444 | 1639 (plist, property, default_)) |
| 428 | 1640 { |
| 444 | 1641 Lisp_Object value = external_plist_get (&plist, property, 0, ERROR_ME); |
| 1642 return UNBOUNDP (value) ? default_ : value; | |
| 428 | 1643 } |
| 1644 | |
| 1645 DEFUN ("plist-put", Fplist_put, 3, 3, 0, /* | |
| 444 | 1646 Change value in PLIST of PROPERTY to VALUE. |
| 1647 PLIST is a property list, which is a list of the form | |
| 1648 \(PROPERTY1 VALUE1 PROPERTY2 VALUE2 ...). | |
| 1649 PROPERTY is usually a symbol and VALUE is any object. | |
| 1650 If PROPERTY is already a property on the list, its value is set to VALUE, | |
| 1651 otherwise the new PROPERTY VALUE pair is added. | |
| 1652 The new plist is returned; use `(setq x (plist-put x property value))' | |
| 1653 to be sure to use the new value. PLIST is modified by side effect. | |
| 428 | 1654 */ |
| 444 | 1655 (plist, property, value)) |
| 428 | 1656 { |
| 444 | 1657 external_plist_put (&plist, property, value, 0, ERROR_ME); |
| 428 | 1658 return plist; |
| 1659 } | |
| 1660 | |
| 1661 DEFUN ("plist-remprop", Fplist_remprop, 2, 2, 0, /* | |
| 444 | 1662 Remove from PLIST the property PROPERTY and its value. |
| 1663 PLIST is a property list, which is a list of the form | |
| 1664 \(PROPERTY1 VALUE1 PROPERTY2 VALUE2 ...). | |
| 1665 PROPERTY is usually a symbol. | |
| 1666 The new plist is returned; use `(setq x (plist-remprop x property))' | |
| 1667 to be sure to use the new value. PLIST is modified by side effect. | |
| 428 | 1668 */ |
| 444 | 1669 (plist, property)) |
| 428 | 1670 { |
| 444 | 1671 external_remprop (&plist, property, 0, ERROR_ME); |
| 428 | 1672 return plist; |
| 1673 } | |
| 1674 | |
| 1675 DEFUN ("plist-member", Fplist_member, 2, 2, 0, /* | |
| 444 | 1676 Return t if PROPERTY has a value specified in PLIST. |
| 428 | 1677 */ |
| 444 | 1678 (plist, property)) |
| 428 | 1679 { |
| 444 | 1680 Lisp_Object value = Fplist_get (plist, property, Qunbound); |
| 1681 return UNBOUNDP (value) ? Qnil : Qt; | |
| 428 | 1682 } |
| 1683 | |
| 1684 DEFUN ("check-valid-plist", Fcheck_valid_plist, 1, 1, 0, /* | |
| 1685 Given a plist, signal an error if there is anything wrong with it. | |
| 1686 This means that it's a malformed or circular plist. | |
| 1687 */ | |
| 1688 (plist)) | |
| 1689 { | |
| 1690 Lisp_Object *tortoise; | |
| 1691 Lisp_Object *hare; | |
| 1692 | |
| 1693 start_over: | |
| 1694 tortoise = &plist; | |
| 1695 hare = &plist; | |
| 1696 while (!NILP (*tortoise)) | |
| 1697 { | |
| 1698 Lisp_Object retval; | |
| 1699 | |
| 1700 /* See above */ | |
| 1701 if (!advance_plist_pointers (&plist, &tortoise, &hare, ERROR_ME, | |
| 1702 &retval)) | |
| 1703 goto start_over; | |
| 1704 } | |
| 1705 | |
| 1706 return Qnil; | |
| 1707 } | |
| 1708 | |
| 1709 DEFUN ("valid-plist-p", Fvalid_plist_p, 1, 1, 0, /* | |
| 1710 Given a plist, return non-nil if its format is correct. | |
| 1711 If it returns nil, `check-valid-plist' will signal an error when given | |
| 442 | 1712 the plist; that means it's a malformed or circular plist. |
| 428 | 1713 */ |
| 1714 (plist)) | |
| 1715 { | |
| 1716 Lisp_Object *tortoise; | |
| 1717 Lisp_Object *hare; | |
| 1718 | |
| 1719 tortoise = &plist; | |
| 1720 hare = &plist; | |
| 1721 while (!NILP (*tortoise)) | |
| 1722 { | |
| 1723 Lisp_Object retval; | |
| 1724 | |
| 1725 /* See above */ | |
| 1726 if (!advance_plist_pointers (&plist, &tortoise, &hare, ERROR_ME_NOT, | |
| 1727 &retval)) | |
| 1728 return Qnil; | |
| 1729 } | |
| 1730 | |
| 1731 return Qt; | |
| 1732 } | |
| 1733 | |
| 1734 DEFUN ("canonicalize-plist", Fcanonicalize_plist, 1, 2, 0, /* | |
| 1735 Destructively remove any duplicate entries from a plist. | |
| 1736 In such cases, the first entry applies. | |
| 1737 | |
| 1738 If optional arg NIL-MEANS-NOT-PRESENT is non-nil, then a property with | |
| 1739 a nil value is removed. This feature is a virus that has infected | |
| 1740 old Lisp implementations, but should not be used except for backward | |
| 1741 compatibility. | |
| 1742 | |
| 1743 The new plist is returned. If NIL-MEANS-NOT-PRESENT is given, the | |
| 1744 return value may not be EQ to the passed-in value, so make sure to | |
| 1745 `setq' the value back into where it came from. | |
| 1746 */ | |
| 1747 (plist, nil_means_not_present)) | |
| 1748 { | |
| 1749 Lisp_Object head = plist; | |
| 1750 | |
| 1751 Fcheck_valid_plist (plist); | |
| 1752 | |
| 1753 while (!NILP (plist)) | |
| 1754 { | |
| 1755 Lisp_Object prop = Fcar (plist); | |
| 1756 Lisp_Object next = Fcdr (plist); | |
| 1757 | |
| 1758 CHECK_CONS (next); /* just make doubly sure we catch any errors */ | |
| 1759 if (!NILP (nil_means_not_present) && NILP (Fcar (next))) | |
| 1760 { | |
| 1761 if (EQ (head, plist)) | |
| 1762 head = Fcdr (next); | |
| 1763 plist = Fcdr (next); | |
| 1764 continue; | |
| 1765 } | |
| 1766 /* external_remprop returns 1 if it removed any property. | |
| 1767 We have to loop till it didn't remove anything, in case | |
| 1768 the property occurs many times. */ | |
| 1769 while (external_remprop (&XCDR (next), prop, 0, ERROR_ME)) | |
| 1770 DO_NOTHING; | |
| 1771 plist = Fcdr (next); | |
| 1772 } | |
| 1773 | |
| 1774 return head; | |
| 1775 } | |
| 1776 | |
| 1777 DEFUN ("lax-plist-get", Flax_plist_get, 2, 3, 0, /* | |
| 1778 Extract a value from a lax property list. | |
| 444 | 1779 LAX-PLIST is a lax property list, which is a list of the form |
| 1780 \(PROPERTY1 VALUE1 PROPERTY2 VALUE2...), where comparisons between | |
| 1781 properties is done using `equal' instead of `eq'. | |
| 1782 PROPERTY is usually a symbol. | |
| 1783 This function returns the value corresponding to PROPERTY, | |
| 1784 or DEFAULT if PROPERTY is not one of the properties on the list. | |
| 428 | 1785 */ |
| 444 | 1786 (lax_plist, property, default_)) |
| 428 | 1787 { |
| 444 | 1788 Lisp_Object value = external_plist_get (&lax_plist, property, 1, ERROR_ME); |
| 1789 return UNBOUNDP (value) ? default_ : value; | |
| 428 | 1790 } |
| 1791 | |
| 1792 DEFUN ("lax-plist-put", Flax_plist_put, 3, 3, 0, /* | |
| 444 | 1793 Change value in LAX-PLIST of PROPERTY to VALUE. |
| 1794 LAX-PLIST is a lax property list, which is a list of the form | |
| 1795 \(PROPERTY1 VALUE1 PROPERTY2 VALUE2...), where comparisons between | |
| 1796 properties is done using `equal' instead of `eq'. | |
| 1797 PROPERTY is usually a symbol and VALUE is any object. | |
| 1798 If PROPERTY is already a property on the list, its value is set to | |
| 1799 VALUE, otherwise the new PROPERTY VALUE pair is added. | |
| 1800 The new plist is returned; use `(setq x (lax-plist-put x property value))' | |
| 1801 to be sure to use the new value. LAX-PLIST is modified by side effect. | |
| 428 | 1802 */ |
| 444 | 1803 (lax_plist, property, value)) |
| 428 | 1804 { |
| 444 | 1805 external_plist_put (&lax_plist, property, value, 1, ERROR_ME); |
| 428 | 1806 return lax_plist; |
| 1807 } | |
| 1808 | |
| 1809 DEFUN ("lax-plist-remprop", Flax_plist_remprop, 2, 2, 0, /* | |
| 444 | 1810 Remove from LAX-PLIST the property PROPERTY and its value. |
| 1811 LAX-PLIST is a lax property list, which is a list of the form | |
| 1812 \(PROPERTY1 VALUE1 PROPERTY2 VALUE2...), where comparisons between | |
| 1813 properties is done using `equal' instead of `eq'. | |
| 1814 PROPERTY is usually a symbol. | |
| 1815 The new plist is returned; use `(setq x (lax-plist-remprop x property))' | |
| 1816 to be sure to use the new value. LAX-PLIST is modified by side effect. | |
| 428 | 1817 */ |
| 444 | 1818 (lax_plist, property)) |
| 428 | 1819 { |
| 444 | 1820 external_remprop (&lax_plist, property, 1, ERROR_ME); |
| 428 | 1821 return lax_plist; |
| 1822 } | |
| 1823 | |
| 1824 DEFUN ("lax-plist-member", Flax_plist_member, 2, 2, 0, /* | |
| 444 | 1825 Return t if PROPERTY has a value specified in LAX-PLIST. |
| 1826 LAX-PLIST is a lax property list, which is a list of the form | |
| 1827 \(PROPERTY1 VALUE1 PROPERTY2 VALUE2...), where comparisons between | |
| 1828 properties is done using `equal' instead of `eq'. | |
| 428 | 1829 */ |
| 444 | 1830 (lax_plist, property)) |
| 428 | 1831 { |
| 444 | 1832 return UNBOUNDP (Flax_plist_get (lax_plist, property, Qunbound)) ? Qnil : Qt; |
| 428 | 1833 } |
| 1834 | |
| 1835 DEFUN ("canonicalize-lax-plist", Fcanonicalize_lax_plist, 1, 2, 0, /* | |
| 1836 Destructively remove any duplicate entries from a lax plist. | |
| 1837 In such cases, the first entry applies. | |
| 1838 | |
| 1839 If optional arg NIL-MEANS-NOT-PRESENT is non-nil, then a property with | |
| 1840 a nil value is removed. This feature is a virus that has infected | |
| 1841 old Lisp implementations, but should not be used except for backward | |
| 1842 compatibility. | |
| 1843 | |
| 1844 The new plist is returned. If NIL-MEANS-NOT-PRESENT is given, the | |
| 1845 return value may not be EQ to the passed-in value, so make sure to | |
| 1846 `setq' the value back into where it came from. | |
| 1847 */ | |
| 1848 (lax_plist, nil_means_not_present)) | |
| 1849 { | |
| 1850 Lisp_Object head = lax_plist; | |
| 1851 | |
| 1852 Fcheck_valid_plist (lax_plist); | |
| 1853 | |
| 1854 while (!NILP (lax_plist)) | |
| 1855 { | |
| 1856 Lisp_Object prop = Fcar (lax_plist); | |
| 1857 Lisp_Object next = Fcdr (lax_plist); | |
| 1858 | |
| 1859 CHECK_CONS (next); /* just make doubly sure we catch any errors */ | |
| 1860 if (!NILP (nil_means_not_present) && NILP (Fcar (next))) | |
| 1861 { | |
| 1862 if (EQ (head, lax_plist)) | |
| 1863 head = Fcdr (next); | |
| 1864 lax_plist = Fcdr (next); | |
| 1865 continue; | |
| 1866 } | |
| 1867 /* external_remprop returns 1 if it removed any property. | |
| 1868 We have to loop till it didn't remove anything, in case | |
| 1869 the property occurs many times. */ | |
| 1870 while (external_remprop (&XCDR (next), prop, 1, ERROR_ME)) | |
| 1871 DO_NOTHING; | |
| 1872 lax_plist = Fcdr (next); | |
| 1873 } | |
| 1874 | |
| 1875 return head; | |
| 1876 } | |
| 1877 | |
| 1878 /* In C because the frame props stuff uses it */ | |
| 1879 | |
| 1880 DEFUN ("destructive-alist-to-plist", Fdestructive_alist_to_plist, 1, 1, 0, /* | |
| 1881 Convert association list ALIST into the equivalent property-list form. | |
| 1882 The plist is returned. This converts from | |
| 1883 | |
| 1884 \((a . 1) (b . 2) (c . 3)) | |
| 1885 | |
| 1886 into | |
| 1887 | |
| 1888 \(a 1 b 2 c 3) | |
| 1889 | |
| 1890 The original alist is destroyed in the process of constructing the plist. | |
| 1891 See also `alist-to-plist'. | |
| 1892 */ | |
| 1893 (alist)) | |
| 1894 { | |
| 1895 Lisp_Object head = alist; | |
| 1896 while (!NILP (alist)) | |
| 1897 { | |
| 1898 /* remember the alist element. */ | |
| 1899 Lisp_Object el = Fcar (alist); | |
| 1900 | |
| 1901 Fsetcar (alist, Fcar (el)); | |
| 1902 Fsetcar (el, Fcdr (el)); | |
| 1903 Fsetcdr (el, Fcdr (alist)); | |
| 1904 Fsetcdr (alist, el); | |
| 1905 alist = Fcdr (Fcdr (alist)); | |
| 1906 } | |
| 1907 | |
| 1908 return head; | |
| 1909 } | |
| 1910 | |
| 1911 DEFUN ("get", Fget, 2, 3, 0, /* | |
| 442 | 1912 Return the value of OBJECT's PROPERTY property. |
| 1913 This is the last VALUE stored with `(put OBJECT PROPERTY VALUE)'. | |
| 428 | 1914 If there is no such property, return optional third arg DEFAULT |
| 442 | 1915 \(which defaults to `nil'). OBJECT can be a symbol, string, extent, |
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1916 face, glyph, or process. See also `put', `remprop', `object-plist', and |
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1917 `object-setplist'. |
| 428 | 1918 */ |
| 442 | 1919 (object, property, default_)) |
| 428 | 1920 { |
| 1921 /* Various places in emacs call Fget() and expect it not to quit, | |
| 1922 so don't quit. */ | |
| 442 | 1923 Lisp_Object val; |
| 1924 | |
| 1925 if (LRECORDP (object) && XRECORD_LHEADER_IMPLEMENTATION (object)->getprop) | |
| 1926 val = XRECORD_LHEADER_IMPLEMENTATION (object)->getprop (object, property); | |
| 428 | 1927 else |
| 563 | 1928 invalid_operation ("Object type has no properties", object); |
| 442 | 1929 |
| 1930 return UNBOUNDP (val) ? default_ : val; | |
| 428 | 1931 } |
| 1932 | |
| 1933 DEFUN ("put", Fput, 3, 3, 0, /* | |
| 442 | 1934 Set OBJECT's PROPERTY to VALUE. |
| 1935 It can be subsequently retrieved with `(get OBJECT PROPERTY)'. | |
| 1936 OBJECT can be a symbol, face, extent, or string. | |
| 428 | 1937 For a string, no properties currently have predefined meanings. |
| 1938 For the predefined properties for extents, see `set-extent-property'. | |
| 1939 For the predefined properties for faces, see `set-face-property'. | |
| 1940 See also `get', `remprop', and `object-plist'. | |
| 1941 */ | |
| 442 | 1942 (object, property, value)) |
| 428 | 1943 { |
| 1920 | 1944 /* This function cannot GC */ |
| 428 | 1945 CHECK_LISP_WRITEABLE (object); |
| 1946 | |
| 442 | 1947 if (LRECORDP (object) && XRECORD_LHEADER_IMPLEMENTATION (object)->putprop) |
| 428 | 1948 { |
| 442 | 1949 if (! XRECORD_LHEADER_IMPLEMENTATION (object)->putprop |
| 1950 (object, property, value)) | |
| 563 | 1951 invalid_change ("Can't set property on object", property); |
| 428 | 1952 } |
| 1953 else | |
| 563 | 1954 invalid_change ("Object type has no settable properties", object); |
| 428 | 1955 |
| 1956 return value; | |
| 1957 } | |
| 1958 | |
| 1959 DEFUN ("remprop", Fremprop, 2, 2, 0, /* | |
| 442 | 1960 Remove, from OBJECT's property list, PROPERTY and its corresponding value. |
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1961 OBJECT can be a symbol, string, extent, face, glyph, or process. |
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1962 Return non-nil if the property list was actually modified (i.e. if PROPERTY |
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1963 was present in the property list). See also `get', `put', `object-plist', |
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1964 and `object-setplist'. |
| 428 | 1965 */ |
| 442 | 1966 (object, property)) |
| 428 | 1967 { |
| 442 | 1968 int ret = 0; |
| 1969 | |
| 428 | 1970 CHECK_LISP_WRITEABLE (object); |
| 1971 | |
| 442 | 1972 if (LRECORDP (object) && XRECORD_LHEADER_IMPLEMENTATION (object)->remprop) |
| 428 | 1973 { |
| 442 | 1974 ret = XRECORD_LHEADER_IMPLEMENTATION (object)->remprop (object, property); |
| 1975 if (ret == -1) | |
| 563 | 1976 invalid_change ("Can't remove property from object", property); |
| 428 | 1977 } |
| 1978 else | |
| 563 | 1979 invalid_change ("Object type has no removable properties", object); |
| 442 | 1980 |
| 1981 return ret ? Qt : Qnil; | |
| 428 | 1982 } |
| 1983 | |
| 1984 DEFUN ("object-plist", Fobject_plist, 1, 1, 0, /* | |
| 442 | 1985 Return a property list of OBJECT's properties. |
| 1986 For a symbol, this is equivalent to `symbol-plist'. | |
| 1987 OBJECT can be a symbol, string, extent, face, or glyph. | |
| 1988 Do not modify the returned property list directly; | |
| 1989 this may or may not have the desired effects. Use `put' instead. | |
| 428 | 1990 */ |
| 1991 (object)) | |
| 1992 { | |
| 442 | 1993 if (LRECORDP (object) && XRECORD_LHEADER_IMPLEMENTATION (object)->plist) |
| 1994 return XRECORD_LHEADER_IMPLEMENTATION (object)->plist (object); | |
| 428 | 1995 else |
| 563 | 1996 invalid_operation ("Object type has no properties", object); |
| 428 | 1997 |
| 1998 return Qnil; | |
| 1999 } | |
| 2000 | |
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2001 DEFUN ("object-setplist", Fobject_setplist, 2, 2, 0, /* |
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2002 Set OBJECT's property list to NEWPLIST, and return NEWPLIST. |
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2003 For a symbol, this is equivalent to `setplist'. |
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2004 |
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2005 OBJECT can be a symbol or a process, other objects with visible plists do |
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2006 not allow their modification with `object-setplist'. |
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2007 */ |
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2008 (object, newplist)) |
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2009 { |
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2010 if (LRECORDP (object) && XRECORD_LHEADER_IMPLEMENTATION (object)->setplist) |
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2011 { |
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2012 return XRECORD_LHEADER_IMPLEMENTATION (object)->setplist (object, |
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2013 newplist); |
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2014 } |
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2015 |
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2016 invalid_operation ("Not possible to set object's plist", object); |
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2017 return Qnil; |
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2018 } |
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2019 |
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2020 |
| 428 | 2021 |
| 853 | 2022 static Lisp_Object |
| 2023 tweaked_internal_equal (Lisp_Object obj1, Lisp_Object obj2, | |
| 2024 Lisp_Object depth) | |
| 2025 { | |
|
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2026 return make_fixnum (internal_equal (obj1, obj2, XFIXNUM (depth))); |
| 853 | 2027 } |
| 2028 | |
| 2029 int | |
| 2030 internal_equal_trapping_problems (Lisp_Object warning_class, | |
|
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2031 const Ascbyte *warning_string, |
| 853 | 2032 int flags, |
| 2033 struct call_trapping_problems_result *p, | |
| 2034 int retval, | |
| 2035 Lisp_Object obj1, Lisp_Object obj2, | |
| 2036 int depth) | |
| 2037 { | |
| 2038 Lisp_Object glorp = | |
| 2039 va_call_trapping_problems (warning_class, warning_string, | |
| 2040 flags, p, | |
| 2041 (lisp_fn_t) tweaked_internal_equal, | |
|
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2042 3, obj1, obj2, make_fixnum (depth)); |
| 853 | 2043 if (UNBOUNDP (glorp)) |
| 2044 return retval; | |
| 2045 else | |
|
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2046 return XFIXNUM (glorp); |
| 853 | 2047 } |
| 2048 | |
| 428 | 2049 int |
| 2050 internal_equal (Lisp_Object obj1, Lisp_Object obj2, int depth) | |
| 2051 { | |
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2052 if (depth + lisp_eval_depth > max_lisp_eval_depth) |
| 563 | 2053 stack_overflow ("Stack overflow in equal", Qunbound); |
| 428 | 2054 QUIT; |
| 2055 if (EQ_WITH_EBOLA_NOTICE (obj1, obj2)) | |
| 2056 return 1; | |
| 2057 /* Note that (equal 20 20.0) should be nil */ | |
| 2058 if (XTYPE (obj1) != XTYPE (obj2)) | |
| 2059 return 0; | |
| 2060 if (LRECORDP (obj1)) | |
| 2061 { | |
| 442 | 2062 const struct lrecord_implementation |
| 428 | 2063 *imp1 = XRECORD_LHEADER_IMPLEMENTATION (obj1), |
| 2064 *imp2 = XRECORD_LHEADER_IMPLEMENTATION (obj2); | |
| 2065 | |
| 2066 return (imp1 == imp2) && | |
| 2067 /* EQ-ness of the objects was noticed above */ | |
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2068 (imp1->equal && (imp1->equal) (obj1, obj2, depth, 0)); |
| 428 | 2069 } |
| 2070 | |
| 2071 return 0; | |
| 2072 } | |
| 2073 | |
|
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2074 enum array_type |
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2075 { |
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2076 ARRAY_NONE = 0, |
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2077 ARRAY_STRING, |
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2078 ARRAY_VECTOR, |
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2079 ARRAY_BIT_VECTOR |
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2080 }; |
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2081 |
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2082 static enum array_type |
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2083 array_type (Lisp_Object obj) |
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2084 { |
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2085 if (STRINGP (obj)) |
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2086 return ARRAY_STRING; |
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2087 if (VECTORP (obj)) |
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2088 return ARRAY_VECTOR; |
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2089 if (BIT_VECTORP (obj)) |
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2090 return ARRAY_BIT_VECTOR; |
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2091 return ARRAY_NONE; |
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2092 } |
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2093 |
| 801 | 2094 int |
| 2095 internal_equalp (Lisp_Object obj1, Lisp_Object obj2, int depth) | |
| 2096 { | |
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|
2097 if (depth + lisp_eval_depth > max_lisp_eval_depth) |
| 801 | 2098 stack_overflow ("Stack overflow in equalp", Qunbound); |
| 2099 QUIT; | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
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|
2100 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2101 /* 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
|
2102 of two equal fixnums or the same object seen twice. */ |
| 801 | 2103 if (EQ_WITH_EBOLA_NOTICE (obj1, obj2)) |
| 2104 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
|
2105 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
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|
2106 /* 2. If both numbers, compare with `='. */ |
| 1983 | 2107 if (NUMBERP (obj1) && NUMBERP (obj2)) |
| 2108 { | |
|
4910
6bc1f3f6cf0d
Make canoncase visible to Lisp; use it with chars in internal_equalp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4906
diff
changeset
|
2109 return (0 == bytecode_arithcompare (obj1, obj2)); |
| 1983 | 2110 } |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2111 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
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|
2112 /* 3. If characters, compare case-insensitively. */ |
| 801 | 2113 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
|
2114 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
|
2115 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2116 /* 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
|
2117 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
|
2118 { |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2119 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
|
2120 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
|
2121 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
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|
2122 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
|
2123 { |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2124 EMACS_INT i; |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5560
diff
changeset
|
2125 EMACS_INT l1 = XFIXNUM (Flength (obj1)); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
2126 EMACS_INT l2 = XFIXNUM (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
|
2127 /* 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
|
2128 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
|
2129 return 0; |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2130 for (i = 0; i < l1; i++) |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5560
diff
changeset
|
2131 if (!internal_equalp (Faref (obj1, make_fixnum (i)), |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5560
diff
changeset
|
2132 Faref (obj2, make_fixnum (i)), depth + 1)) |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2133 return 0; |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2134 return 1; |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2135 } |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2136 } |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2137 /* 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
|
2138 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
|
2139 their contents, the equal() method will call internal_equal_0(). */ |
| 801 | 2140 if (XTYPE (obj1) != XTYPE (obj2)) |
| 2141 return 0; | |
| 2142 if (LRECORDP (obj1)) | |
| 2143 { | |
| 2144 const struct lrecord_implementation | |
| 2145 *imp1 = XRECORD_LHEADER_IMPLEMENTATION (obj1), | |
| 2146 *imp2 = XRECORD_LHEADER_IMPLEMENTATION (obj2); | |
| 2147 | |
| 2148 return (imp1 == imp2) && | |
| 2149 /* 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
|
2150 (imp1->equal && (imp1->equal) (obj1, obj2, depth, 1)); |
| 801 | 2151 } |
| 2152 | |
| 2153 return 0; | |
| 2154 } | |
| 2155 | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2156 int |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2157 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
|
2158 { |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2159 if (foldcase) |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2160 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
|
2161 else |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2162 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
|
2163 } |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2164 |
| 428 | 2165 DEFUN ("equal", Fequal, 2, 2, 0, /* |
| 2166 Return t if two Lisp objects have similar structure and contents. | |
| 2167 They must have the same data type. | |
| 2168 Conses are compared by comparing the cars and the cdrs. | |
| 2169 Vectors and strings are compared element by element. | |
| 2170 Numbers are compared by value. Symbols must match exactly. | |
| 2171 */ | |
| 444 | 2172 (object1, object2)) |
| 428 | 2173 { |
| 444 | 2174 return internal_equal (object1, object2, 0) ? Qt : Qnil; |
| 428 | 2175 } |
| 2176 | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2177 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
|
2178 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
|
2179 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2180 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
|
2181 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
|
2182 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
|
2183 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2184 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
|
2185 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
|
2186 `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
|
2187 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2188 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
|
2189 `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
|
2190 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
|
2191 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
|
2192 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
|
2193 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
|
2194 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
|
2195 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
|
2196 |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2197 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
|
2198 (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
|
2199 `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
|
2200 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
|
2201 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
|
2202 */ |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2203 (object1, object2)) |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2204 { |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2205 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:
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diff
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|
2206 } |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4797
diff
changeset
|
2207 |
|
5374
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
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5360
diff
changeset
|
2208 #ifdef SUPPORT_CONFOUNDING_FUNCTIONS |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
2209 |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2210 /* Note that we may be calling sub-objects that will use |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2211 internal_equal() (instead of internal_old_equal()). Oh well. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
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5360
diff
changeset
|
2212 We will get an Ebola note if there's any possibility of confusion, |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2213 but that seems unlikely. */ |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
2214 |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2215 static int |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
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5360
diff
changeset
|
2216 internal_old_equal (Lisp_Object obj1, Lisp_Object obj2, int depth) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
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5360
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|
2217 { |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
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changeset
|
2218 if (depth + lisp_eval_depth > max_lisp_eval_depth) |
|
d967d96ca043
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Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
2219 stack_overflow ("Stack overflow in equal", Qunbound); |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
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|
2220 QUIT; |
|
d967d96ca043
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Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
2221 if (HACKEQ_UNSAFE (obj1, obj2)) |
|
d967d96ca043
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Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
2222 return 1; |
|
d967d96ca043
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changeset
|
2223 /* Note that (equal 20 20.0) should be nil */ |
|
d967d96ca043
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diff
changeset
|
2224 if (XTYPE (obj1) != XTYPE (obj2)) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
2225 return 0; |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
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5360
diff
changeset
|
2226 |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2227 return internal_equal (obj1, obj2, depth); |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2228 } |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2229 |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2230 DEFUN ("old-member", Fold_member, 2, 2, 0, /* |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2231 Return non-nil if ELT is an element of LIST. Comparison done with `old-equal'. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2232 The value is actually the tail of LIST whose car is ELT. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2233 This function is provided only for byte-code compatibility with v19. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2234 Do not use it. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2235 */ |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2236 (elt, list)) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2237 { |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2238 EXTERNAL_LIST_LOOP_3 (list_elt, list, tail) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2239 { |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2240 if (internal_old_equal (elt, list_elt, 0)) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2241 return tail; |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2242 } |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2243 return Qnil; |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2244 } |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2245 |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2246 DEFUN ("old-memq", Fold_memq, 2, 2, 0, /* |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2247 Return non-nil if ELT is an element of LIST. Comparison done with `old-eq'. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2248 The value is actually the tail of LIST whose car is ELT. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2249 This function is provided only for byte-code compatibility with v19. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2250 Do not use it. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2251 */ |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2252 (elt, list)) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2253 { |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2254 EXTERNAL_LIST_LOOP_3 (list_elt, list, tail) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2255 { |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2256 if (HACKEQ_UNSAFE (elt, list_elt)) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2257 return tail; |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2258 } |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2259 return Qnil; |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2260 } |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2261 |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2262 DEFUN ("old-assoc", Fold_assoc, 2, 2, 0, /* |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2263 Return non-nil if KEY is `old-equal' to the car of an element of ALIST. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2264 The value is actually the element of ALIST whose car equals KEY. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2265 */ |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2266 (key, alist)) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2267 { |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2268 /* This function can GC. */ |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2269 EXTERNAL_ALIST_LOOP_4 (elt, elt_car, elt_cdr, alist) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2270 { |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2271 if (internal_old_equal (key, elt_car, 0)) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2272 return elt; |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2273 } |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2274 return Qnil; |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2275 } |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2276 |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2277 DEFUN ("old-assq", Fold_assq, 2, 2, 0, /* |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2278 Return non-nil if KEY is `old-eq' to the car of an element of ALIST. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2279 The value is actually the element of ALIST whose car is KEY. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2280 Elements of ALIST that are not conses are ignored. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2281 This function is provided only for byte-code compatibility with v19. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2282 Do not use it. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2283 */ |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2284 (key, alist)) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2285 { |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2286 EXTERNAL_ALIST_LOOP_4 (elt, elt_car, elt_cdr, alist) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2287 { |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2288 if (HACKEQ_UNSAFE (key, elt_car)) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2289 return elt; |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2290 } |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2291 return Qnil; |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2292 } |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2293 |
|
5607
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
2294 DEFUN ("old-rassq", Fold_rassq, 2, 2, 0, /* |
|
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
2295 Return non-nil if VALUE is `old-eq' to the cdr of an element of ALIST. |
|
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
2296 The value is actually the element of ALIST whose cdr is VALUE. |
|
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
2297 */ |
|
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
2298 (value, alist)) |
|
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
2299 { |
|
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
2300 EXTERNAL_ALIST_LOOP_4 (elt, elt_car, elt_cdr, alist) |
|
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
2301 { |
|
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
2302 if (HACKEQ_UNSAFE (value, elt_cdr)) |
|
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
2303 return elt; |
|
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
2304 } |
|
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
2305 return Qnil; |
|
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
2306 } |
|
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
2307 |
|
5374
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2308 DEFUN ("old-rassoc", Fold_rassoc, 2, 2, 0, /* |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2309 Return non-nil if VALUE is `old-equal' to the cdr of an element of ALIST. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2310 The value is actually the element of ALIST whose cdr equals VALUE. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2311 */ |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2312 (value, alist)) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2313 { |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2314 EXTERNAL_ALIST_LOOP_4 (elt, elt_car, elt_cdr, alist) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2315 { |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2316 if (internal_old_equal (value, elt_cdr, 0)) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2317 return elt; |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2318 } |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2319 return Qnil; |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2320 } |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2321 |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2322 DEFUN ("old-delete", Fold_delete, 2, 2, 0, /* |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2323 Delete by side effect any occurrences of ELT as a member of LIST. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2324 The modified LIST is returned. Comparison is done with `old-equal'. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2325 If the first member of LIST is ELT, there is no way to remove it by side |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2326 effect; therefore, write `(setq foo (old-delete element foo))' to be sure |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2327 of changing the value of `foo'. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2328 */ |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2329 (elt, list)) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2330 { |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2331 EXTERNAL_LIST_LOOP_DELETE_IF (list_elt, list, |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2332 (internal_old_equal (elt, list_elt, 0))); |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2333 return list; |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2334 } |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2335 |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2336 DEFUN ("old-delq", Fold_delq, 2, 2, 0, /* |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2337 Delete by side effect any occurrences of ELT as a member of LIST. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2338 The modified LIST is returned. Comparison is done with `old-eq'. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2339 If the first member of LIST is ELT, there is no way to remove it by side |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2340 effect; therefore, write `(setq foo (old-delq element foo))' to be sure of |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2341 changing the value of `foo'. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2342 */ |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2343 (elt, list)) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2344 { |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2345 EXTERNAL_LIST_LOOP_DELETE_IF (list_elt, list, |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2346 (HACKEQ_UNSAFE (elt, list_elt))); |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2347 return list; |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2348 } |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2349 |
| 428 | 2350 DEFUN ("old-equal", Fold_equal, 2, 2, 0, /* |
| 2351 Return t if two Lisp objects have similar structure and contents. | |
| 2352 They must have the same data type. | |
| 2353 \(Note, however, that an exception is made for characters and integers; | |
| 2354 this is known as the "char-int confoundance disease." See `eq' and | |
| 2355 `old-eq'.) | |
| 2356 This function is provided only for byte-code compatibility with v19. | |
| 2357 Do not use it. | |
| 2358 */ | |
| 444 | 2359 (object1, object2)) |
| 428 | 2360 { |
| 444 | 2361 return internal_old_equal (object1, object2, 0) ? Qt : Qnil; |
| 428 | 2362 } |
| 2363 | |
|
5374
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2364 DEFUN ("old-eq", Fold_eq, 2, 2, 0, /* |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2365 Return t if the two args are (in most cases) the same Lisp object. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2366 |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2367 Special kludge: A character is considered `old-eq' to its equivalent integer |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2368 even though they are not the same object and are in fact of different |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2369 types. This is ABSOLUTELY AND UTTERLY HORRENDOUS but is necessary to |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2370 preserve byte-code compatibility with v19. This kludge is known as the |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2371 \"char-int confoundance disease\" and appears in a number of other |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2372 functions with `old-foo' equivalents. |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2373 |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2374 Do not use this function! |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2375 */ |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2376 (object1, object2)) |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2377 { |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2378 /* #### blasphemy */ |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2379 return HACKEQ_UNSAFE (object1, object2) ? Qt : Qnil; |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2380 } |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2381 |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2382 #endif |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
2383 |
| 428 | 2384 Lisp_Object |
| 2385 nconc2 (Lisp_Object arg1, Lisp_Object arg2) | |
| 2386 { | |
| 2387 Lisp_Object args[2]; | |
| 2388 struct gcpro gcpro1; | |
| 2389 args[0] = arg1; | |
| 2390 args[1] = arg2; | |
| 2391 | |
| 2392 GCPRO1 (args[0]); | |
| 2393 gcpro1.nvars = 2; | |
| 2394 | |
| 2395 RETURN_UNGCPRO (bytecode_nconc2 (args)); | |
| 2396 } | |
| 2397 | |
| 2398 Lisp_Object | |
| 2399 bytecode_nconc2 (Lisp_Object *args) | |
| 2400 { | |
| 2401 retry: | |
| 2402 | |
| 2403 if (CONSP (args[0])) | |
| 2404 { | |
| 2405 /* (setcdr (last args[0]) args[1]) */ | |
| 2406 Lisp_Object tortoise, hare; | |
| 665 | 2407 Elemcount count; |
| 428 | 2408 |
| 2409 for (hare = tortoise = args[0], count = 0; | |
| 2410 CONSP (XCDR (hare)); | |
| 2411 hare = XCDR (hare), count++) | |
| 2412 { | |
| 2413 if (count < CIRCULAR_LIST_SUSPICION_LENGTH) continue; | |
| 2414 | |
| 2415 if (count & 1) | |
| 2416 tortoise = XCDR (tortoise); | |
| 2417 if (EQ (hare, tortoise)) | |
| 2418 signal_circular_list_error (args[0]); | |
| 2419 } | |
| 2420 XCDR (hare) = args[1]; | |
| 2421 return args[0]; | |
| 2422 } | |
| 2423 else if (NILP (args[0])) | |
| 2424 { | |
| 2425 return args[1]; | |
| 2426 } | |
| 2427 else | |
| 2428 { | |
| 2429 args[0] = wrong_type_argument (args[0], Qlistp); | |
| 2430 goto retry; | |
| 2431 } | |
| 2432 } | |
| 2433 | |
| 2434 DEFUN ("nconc", Fnconc, 0, MANY, 0, /* | |
| 2435 Concatenate any number of lists by altering them. | |
| 2436 Only the last argument is not altered, and need not be a list. | |
| 2437 Also see: `append'. | |
| 2438 If the first argument is nil, there is no way to modify it by side | |
| 2439 effect; therefore, write `(setq foo (nconc foo list))' to be sure of | |
| 2440 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
|
2441 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3842
diff
changeset
|
2442 arguments: (&rest ARGS) |
| 428 | 2443 */ |
| 2444 (int nargs, Lisp_Object *args)) | |
| 2445 { | |
| 2446 int argnum = 0; | |
| 2447 struct gcpro gcpro1; | |
| 2448 | |
| 2449 /* The modus operandi in Emacs is "caller gc-protects args". | |
| 2450 However, nconc (particularly nconc2 ()) is called many times | |
| 2451 in Emacs on freshly created stuff (e.g. you see the idiom | |
| 2452 nconc2 (Fcopy_sequence (foo), bar) a lot). So we help those | |
| 2453 callers out by protecting the args ourselves to save them | |
| 2454 a lot of temporary-variable grief. */ | |
| 2455 | |
| 2456 GCPRO1 (args[0]); | |
| 2457 gcpro1.nvars = nargs; | |
| 2458 | |
| 2459 while (argnum < nargs) | |
| 2460 { | |
| 2461 Lisp_Object val; | |
| 2462 retry: | |
| 2463 val = args[argnum]; | |
| 2464 if (CONSP (val)) | |
| 2465 { | |
| 2466 /* `val' is the first cons, which will be our return value. */ | |
| 2467 /* `last_cons' will be the cons cell to mutate. */ | |
| 2468 Lisp_Object last_cons = val; | |
| 2469 Lisp_Object tortoise = val; | |
| 2470 | |
| 2471 for (argnum++; argnum < nargs; argnum++) | |
| 2472 { | |
| 2473 Lisp_Object next = args[argnum]; | |
| 2474 retry_next: | |
| 2475 if (CONSP (next) || argnum == nargs -1) | |
| 2476 { | |
| 2477 /* (setcdr (last val) next) */ | |
| 665 | 2478 Elemcount count; |
| 428 | 2479 |
| 2480 for (count = 0; | |
| 2481 CONSP (XCDR (last_cons)); | |
| 2482 last_cons = XCDR (last_cons), count++) | |
| 2483 { | |
| 2484 if (count < CIRCULAR_LIST_SUSPICION_LENGTH) continue; | |
| 2485 | |
| 2486 if (count & 1) | |
| 2487 tortoise = XCDR (tortoise); | |
| 2488 if (EQ (last_cons, tortoise)) | |
| 2489 signal_circular_list_error (args[argnum-1]); | |
| 2490 } | |
| 2491 XCDR (last_cons) = next; | |
| 2492 } | |
| 2493 else if (NILP (next)) | |
| 2494 { | |
| 2495 continue; | |
| 2496 } | |
| 2497 else | |
| 2498 { | |
| 2499 next = wrong_type_argument (Qlistp, next); | |
| 2500 goto retry_next; | |
| 2501 } | |
| 2502 } | |
| 2503 RETURN_UNGCPRO (val); | |
| 2504 } | |
| 2505 else if (NILP (val)) | |
| 2506 argnum++; | |
| 2507 else if (argnum == nargs - 1) /* last arg? */ | |
| 2508 RETURN_UNGCPRO (val); | |
| 2509 else | |
| 2510 { | |
| 2511 args[argnum] = wrong_type_argument (Qlistp, val); | |
| 2512 goto retry; | |
| 2513 } | |
| 2514 } | |
| 2515 RETURN_UNGCPRO (Qnil); /* No non-nil args provided. */ | |
| 2516 } | |
| 2517 | |
| 2518 | |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2519 /* 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
|
2520 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
|
2521 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
|
2522 |
|
5253
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2523 CALLER is a symbol reflecting the Lisp-visible function that was called, |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2524 and any errors thrown because SEQUENCES was modified will reflect it. |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2525 |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2526 If CALLER is Qmapl, return LISTS[0]. Otherwise, return a list of the |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2527 return values from FUNCTION; if caller is Qmapcan, nconc them together. |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2528 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2529 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
|
2530 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
|
2531 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
|
2532 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2533 static Lisp_Object |
|
5253
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2534 maplist (Lisp_Object function, int nlists, Lisp_Object *lists, |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2535 Lisp_Object caller) |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2536 { |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2537 Lisp_Object nconcing[2], accum = Qnil, *args, *tortoises, funcalled; |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2538 Lisp_Object result = EQ (caller, Qmapl) ? lists[0] : Qnil; |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2539 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2540 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
|
2541 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2542 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
|
2543 args[0] = function; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2544 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
|
2545 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2546 args[i] = Qnil; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2547 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2548 |
|
5253
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2549 tortoises = alloca_array (Lisp_Object, nlists); |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2550 memcpy (tortoises, lists, nlists * sizeof (Lisp_Object)); |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2551 |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2552 if (EQ (caller, Qmapcon)) |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2553 { |
|
5253
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2554 nconcing[0] = Qnil; |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2555 nconcing[1] = Qnil; |
|
5253
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2556 GCPRO4 (args[0], nconcing[0], tortoises[0], result); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2557 gcpro1.nvars = 1; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2558 gcpro2.nvars = 2; |
|
5253
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2559 gcpro3.nvars = nlists; |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2560 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2561 else |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2562 { |
|
5253
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2563 GCPRO3 (args[0], tortoises[0], result); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2564 gcpro1.nvars = 1; |
|
5253
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2565 gcpro2.nvars = nlists; |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2566 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2567 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2568 while (continuing) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2569 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2570 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
|
2571 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2572 if (CONSP (lists[j])) |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2573 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2574 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
|
2575 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
|
2576 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2577 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
|
2578 { |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2579 continuing = 0; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2580 break; |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2581 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2582 else |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2583 { |
|
5253
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2584 lists[j] = wrong_type_argument (Qlistp, lists[j]); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2585 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2586 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2587 if (!continuing) break; |
|
4997
8800b5350a13
Move #'some, #'every to C, implementing them with mapcarX.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4996
diff
changeset
|
2588 funcalled = IGNORE_MULTIPLE_VALUES (Ffuncall (nlists + 1, args)); |
|
5253
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2589 |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2590 if (EQ (caller, Qmapl)) |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2591 { |
|
5253
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2592 DO_NOTHING; |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2593 } |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2594 else if (EQ (caller, Qmapcon)) |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2595 { |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2596 nconcing[1] = funcalled; |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2597 accum = bytecode_nconc2 (nconcing); |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2598 if (NILP (result)) |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2599 { |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2600 result = accum; |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2601 } |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2602 /* Only check a given stretch of result for well-formedness |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2603 once: */ |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2604 nconcing[0] = funcalled; |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2605 } |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2606 else if (NILP (accum)) |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2607 { |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2608 accum = result = Fcons (funcalled, Qnil); |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2609 } |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2610 else |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2611 { |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2612 /* Add to the end, avoiding the need to call nreverse |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2613 once we're done: */ |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2614 XSETCDR (accum, Fcons (funcalled, Qnil)); |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2615 accum = XCDR (accum); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2616 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2617 |
|
5253
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2618 if (++called_count > CIRCULAR_LIST_SUSPICION_LENGTH) |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2619 { |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2620 if (called_count & 1) |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2621 { |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2622 for (j = 0; j < nlists; ++j) |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2623 { |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2624 tortoises[j] = XCDR (tortoises[j]); |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2625 if (EQ (lists[j], tortoises[j])) |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2626 { |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2627 signal_circular_list_error (lists[j]); |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2628 } |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2629 } |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2630 } |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2631 else |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2632 { |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2633 for (j = 0; j < nlists; ++j) |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2634 { |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2635 if (EQ (lists[j], tortoises[j])) |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2636 { |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2637 signal_circular_list_error (lists[j]); |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2638 } |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2639 } |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2640 } |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2641 } |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2642 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2643 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2644 RETURN_UNGCPRO (result); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2645 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2646 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2647 DEFUN ("maplist", Fmaplist, 2, MANY, 0, /* |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2648 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
|
2649 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:
4797
diff
changeset
|
2650 the elements themselves." |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2651 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2652 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
|
2653 */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2654 (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
|
2655 { |
|
5253
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2656 return maplist (args[0], nargs - 1, args + 1, Qmaplist); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2657 } |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2658 |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2659 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
|
2660 Like `maplist', but do not accumulate values returned by the function. |
|
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diff
changeset
|
2661 |
|
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diff
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|
2662 arguments: (FUNCTION LIST &rest LISTS) |
|
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diff
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|
2663 */ |
|
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|
2664 (int nargs, Lisp_Object *args)) |
|
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|
2665 { |
|
5253
b6a398dbb403
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|
2666 return maplist (args[0], nargs - 1, args + 1, Qmapl); |
|
4995
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diff
changeset
|
2667 } |
|
8431b52e43b1
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diff
changeset
|
2668 |
|
8431b52e43b1
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parents:
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diff
changeset
|
2669 DEFUN ("mapcon", Fmapcon, 2, MANY, 0, /* |
|
8431b52e43b1
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diff
changeset
|
2670 Like `maplist', but chains together the values returned by FUNCTION. |
|
8431b52e43b1
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changeset
|
2671 |
|
8431b52e43b1
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diff
changeset
|
2672 FUNCTION must return a list (unless it happens to be the last |
|
8431b52e43b1
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diff
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|
2673 iteration); the results will be concatenated together using `nconc'. |
|
8431b52e43b1
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Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
2674 |
|
8431b52e43b1
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parents:
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diff
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|
2675 arguments: (FUNCTION LIST &rest LISTS) |
|
8431b52e43b1
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Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
2676 */ |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
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parents:
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diff
changeset
|
2677 (int nargs, Lisp_Object *args)) |
|
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Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
2678 { |
|
5253
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
2679 return maplist (args[0], nargs - 1, args + 1, Qmapcon); |
|
4995
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Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
2680 } |
|
5227
fbd1485af104
Move #'reduce to fns.c from cl-seq.el.
Aidan Kehoe <kehoea@parhasard.net>
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5224
diff
changeset
|
2681 |
| 442 | 2682 DEFUN ("replace-list", Freplace_list, 2, 2, 0, /* |
| 2683 Destructively replace the list OLD with NEW. | |
| 2684 This is like (copy-sequence NEW) except that it reuses the | |
| 2685 conses in OLD as much as possible. If OLD and NEW are the same | |
| 2686 length, no consing will take place. | |
| 2687 */ | |
| 3025 | 2688 (old, new_)) |
| 442 | 2689 { |
| 2367 | 2690 Lisp_Object oldtail = old, prevoldtail = Qnil; |
| 2691 | |
| 3025 | 2692 EXTERNAL_LIST_LOOP_2 (elt, new_) |
| 442 | 2693 { |
| 2694 if (!NILP (oldtail)) | |
| 2695 { | |
| 2696 CHECK_CONS (oldtail); | |
| 2367 | 2697 XCAR (oldtail) = elt; |
| 442 | 2698 } |
| 2699 else if (!NILP (prevoldtail)) | |
| 2700 { | |
| 2367 | 2701 XCDR (prevoldtail) = Fcons (elt, Qnil); |
| 442 | 2702 prevoldtail = XCDR (prevoldtail); |
| 2703 } | |
| 2704 else | |
| 2367 | 2705 old = oldtail = Fcons (elt, Qnil); |
| 442 | 2706 |
| 2707 if (!NILP (oldtail)) | |
| 2708 { | |
| 2709 prevoldtail = oldtail; | |
| 2710 oldtail = XCDR (oldtail); | |
| 2711 } | |
| 2712 } | |
| 2713 | |
| 2714 if (!NILP (prevoldtail)) | |
| 2715 XCDR (prevoldtail) = Qnil; | |
| 2716 else | |
| 2717 old = Qnil; | |
| 2718 | |
| 2719 return old; | |
| 2720 } | |
| 2721 | |
|
5327
d1b17a33450b
Move the heavy lifting from cl-seq.el to C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5309
diff
changeset
|
2722 |
| 771 | 2723 Lisp_Object |
| 2367 | 2724 add_suffix_to_symbol (Lisp_Object symbol, const Ascbyte *ascii_string) |
| 771 | 2725 { |
| 2726 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
|
2727 build_ascstring (ascii_string)), |
| 771 | 2728 Qnil); |
| 2729 } | |
| 2730 | |
| 2731 Lisp_Object | |
| 2367 | 2732 add_prefix_to_symbol (const Ascbyte *ascii_string, Lisp_Object symbol) |
| 771 | 2733 { |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
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diff
changeset
|
2734 return Fintern (concat2 (build_ascstring (ascii_string), |
| 771 | 2735 Fsymbol_name (symbol)), |
| 2736 Qnil); | |
| 2737 } | |
| 442 | 2738 |
| 428 | 2739 /* #### this function doesn't belong in this file! */ |
| 2740 | |
| 442 | 2741 #ifdef HAVE_GETLOADAVG |
| 2742 #ifdef HAVE_SYS_LOADAVG_H | |
| 2743 #include <sys/loadavg.h> | |
| 2744 #endif | |
| 2745 #else | |
| 2746 int getloadavg (double loadavg[], int nelem); /* Defined in getloadavg.c */ | |
| 2747 #endif | |
| 2748 | |
| 428 | 2749 DEFUN ("load-average", Fload_average, 0, 1, 0, /* |
| 2750 Return list of 1 minute, 5 minute and 15 minute load averages. | |
| 2751 Each of the three load averages is multiplied by 100, | |
| 2752 then converted to integer. | |
| 2753 | |
| 2754 When USE-FLOATS is non-nil, floats will be used instead of integers. | |
| 2755 These floats are not multiplied by 100. | |
| 2756 | |
| 2757 If the 5-minute or 15-minute load averages are not available, return a | |
| 2758 shortened list, containing only those averages which are available. | |
| 2759 | |
| 2760 On some systems, this won't work due to permissions on /dev/kmem, | |
| 2761 in which case you can't use this. | |
| 2762 */ | |
| 2763 (use_floats)) | |
| 2764 { | |
| 2765 double load_ave[3]; | |
| 2766 int loads = getloadavg (load_ave, countof (load_ave)); | |
| 2767 Lisp_Object ret = Qnil; | |
| 2768 | |
| 2769 if (loads == -2) | |
| 563 | 2770 signal_error (Qunimplemented, |
| 2771 "load-average not implemented for this operating system", | |
| 2772 Qunbound); | |
| 428 | 2773 else if (loads < 0) |
| 563 | 2774 invalid_operation ("Could not get load-average", lisp_strerror (errno)); |
| 428 | 2775 |
| 2776 while (loads-- > 0) | |
| 2777 { | |
| 2778 Lisp_Object load = (NILP (use_floats) ? | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5560
diff
changeset
|
2779 make_fixnum ((int) (100.0 * load_ave[loads])) |
| 428 | 2780 : make_float (load_ave[loads])); |
| 2781 ret = Fcons (load, ret); | |
| 2782 } | |
| 2783 return ret; | |
| 2784 } | |
| 2785 | |
| 2786 | |
| 2787 Lisp_Object Vfeatures; | |
| 2788 | |
| 2789 DEFUN ("featurep", Ffeaturep, 1, 1, 0, /* | |
| 2790 Return non-nil if feature FEXP is present in this Emacs. | |
| 2791 Use this to conditionalize execution of lisp code based on the | |
| 2792 presence or absence of emacs or environment extensions. | |
| 2793 FEXP can be a symbol, a number, or a list. | |
| 2794 If it is a symbol, that symbol is looked up in the `features' variable, | |
| 2795 and non-nil will be returned if found. | |
| 2796 If it is a number, the function will return non-nil if this Emacs | |
| 2797 has an equal or greater version number than FEXP. | |
| 2798 If it is a list whose car is the symbol `and', it will return | |
| 2799 non-nil if all the features in its cdr are non-nil. | |
| 2800 If it is a list whose car is the symbol `or', it will return non-nil | |
| 2801 if any of the features in its cdr are non-nil. | |
| 2802 If it is a list whose car is the symbol `not', it will return | |
| 2803 non-nil if the feature is not present. | |
| 2804 | |
| 2805 Examples: | |
| 2806 | |
| 2807 (featurep 'xemacs) | |
| 2808 => ; Non-nil on XEmacs. | |
| 2809 | |
| 2810 (featurep '(and xemacs gnus)) | |
| 2811 => ; Non-nil on XEmacs with Gnus loaded. | |
| 2812 | |
| 2813 (featurep '(or tty-frames (and emacs 19.30))) | |
| 2814 => ; Non-nil if this Emacs supports TTY frames. | |
| 2815 | |
| 2816 (featurep '(or (and xemacs 19.15) (and emacs 19.34))) | |
| 2817 => ; Non-nil on XEmacs 19.15 and later, or FSF Emacs 19.34 and later. | |
| 2818 | |
| 442 | 2819 (featurep '(and xemacs 21.02)) |
| 2820 => ; Non-nil on XEmacs 21.2 and later. | |
| 2821 | |
| 428 | 2822 NOTE: The advanced arguments of this function (anything other than a |
| 2823 symbol) are not yet supported by FSF Emacs. If you feel they are useful | |
| 2824 for supporting multiple Emacs variants, lobby Richard Stallman at | |
| 442 | 2825 <bug-gnu-emacs@gnu.org>. |
| 428 | 2826 */ |
| 2827 (fexp)) | |
| 2828 { | |
| 2829 #ifndef FEATUREP_SYNTAX | |
| 2830 CHECK_SYMBOL (fexp); | |
| 2831 return NILP (Fmemq (fexp, Vfeatures)) ? Qnil : Qt; | |
| 2832 #else /* FEATUREP_SYNTAX */ | |
| 2833 static double featurep_emacs_version; | |
| 2834 | |
| 2835 /* Brute force translation from Erik Naggum's lisp function. */ | |
| 2836 if (SYMBOLP (fexp)) | |
| 2837 { | |
| 2838 /* Original definition */ | |
| 2839 return NILP (Fmemq (fexp, Vfeatures)) ? Qnil : Qt; | |
| 2840 } | |
|
5581
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5560
diff
changeset
|
2841 else if (FIXNUMP (fexp) || FLOATP (fexp)) |
| 428 | 2842 { |
| 2843 double d = extract_float (fexp); | |
| 2844 | |
| 2845 if (featurep_emacs_version == 0.0) | |
| 2846 { | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5560
diff
changeset
|
2847 featurep_emacs_version = XFIXNUM (Vemacs_major_version) + |
|
56144c8593a8
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5560
diff
changeset
|
2848 (XFIXNUM (Vemacs_minor_version) / 100.0); |
| 428 | 2849 } |
| 2850 return featurep_emacs_version >= d ? Qt : Qnil; | |
| 2851 } | |
| 2852 else if (CONSP (fexp)) | |
| 2853 { | |
| 2854 Lisp_Object tem = XCAR (fexp); | |
| 2855 if (EQ (tem, Qnot)) | |
| 2856 { | |
| 2857 Lisp_Object negate; | |
| 2858 | |
| 2859 tem = XCDR (fexp); | |
| 2860 negate = Fcar (tem); | |
| 2861 if (!NILP (tem)) | |
| 2862 return NILP (call1 (Qfeaturep, negate)) ? Qt : Qnil; | |
| 2863 else | |
| 2864 return Fsignal (Qinvalid_read_syntax, list1 (tem)); | |
| 2865 } | |
| 2866 else if (EQ (tem, Qand)) | |
| 2867 { | |
| 2868 tem = XCDR (fexp); | |
| 2869 /* Use Fcar/Fcdr for error-checking. */ | |
| 2870 while (!NILP (tem) && !NILP (call1 (Qfeaturep, Fcar (tem)))) | |
| 2871 { | |
| 2872 tem = Fcdr (tem); | |
| 2873 } | |
| 2874 return NILP (tem) ? Qt : Qnil; | |
| 2875 } | |
| 2876 else if (EQ (tem, Qor)) | |
| 2877 { | |
| 2878 tem = XCDR (fexp); | |
| 2879 /* Use Fcar/Fcdr for error-checking. */ | |
| 2880 while (!NILP (tem) && NILP (call1 (Qfeaturep, Fcar (tem)))) | |
| 2881 { | |
| 2882 tem = Fcdr (tem); | |
| 2883 } | |
| 2884 return NILP (tem) ? Qnil : Qt; | |
| 2885 } | |
| 2886 else | |
| 2887 { | |
| 2888 return Fsignal (Qinvalid_read_syntax, list1 (XCDR (fexp))); | |
| 2889 } | |
| 2890 } | |
| 2891 else | |
| 2892 { | |
| 2893 return Fsignal (Qinvalid_read_syntax, list1 (fexp)); | |
| 2894 } | |
| 2895 } | |
| 2896 #endif /* FEATUREP_SYNTAX */ | |
| 2897 | |
| 2898 DEFUN ("provide", Fprovide, 1, 1, 0, /* | |
| 2899 Announce that FEATURE is a feature of the current Emacs. | |
| 2900 This function updates the value of the variable `features'. | |
| 2901 */ | |
| 2902 (feature)) | |
| 2903 { | |
| 2904 Lisp_Object tem; | |
| 2905 CHECK_SYMBOL (feature); | |
| 2906 if (!NILP (Vautoload_queue)) | |
| 2907 Vautoload_queue = Fcons (Fcons (Vfeatures, Qnil), Vautoload_queue); | |
| 2908 tem = Fmemq (feature, Vfeatures); | |
| 2909 if (NILP (tem)) | |
| 2910 Vfeatures = Fcons (feature, Vfeatures); | |
| 2911 LOADHIST_ATTACH (Fcons (Qprovide, feature)); | |
| 2912 return feature; | |
| 2913 } | |
| 2914 | |
| 1067 | 2915 DEFUN ("require", Frequire, 1, 3, 0, /* |
| 3842 | 2916 Ensure that FEATURE is present in the Lisp environment. |
| 2917 FEATURE is a symbol naming a collection of resources (functions, etc). | |
| 2918 Optional FILENAME is a library from which to load resources; it defaults to | |
| 2919 the print name of FEATURE. | |
| 2920 Optional NOERROR, if non-nil, causes require to return nil rather than signal | |
| 2921 `file-error' if loading the library fails. | |
| 2922 | |
| 2923 If feature FEATURE is present in `features', update `load-history' to reflect | |
| 2924 the require and return FEATURE. Otherwise, try to load it from a library. | |
| 2925 The normal messages at start and end of loading are suppressed. | |
| 2926 If the library is successfully loaded and it calls `(provide FEATURE)', add | |
| 2927 FEATURE to `features', update `load-history' and return FEATURE. | |
| 2928 If the load succeeds but FEATURE is not provided by the library, signal | |
| 2929 `invalid-state'. | |
| 2930 | |
| 2931 The byte-compiler treats top-level calls to `require' specially, by evaluating | |
| 2932 them at compile time (and then compiling them normally). Thus a library may | |
| 2933 request that definitions that should be inlined such as macros and defsubsts | |
| 2934 be loaded into its compilation environment. Achieving this in other contexts | |
| 2935 requires an explicit \(eval-and-compile ...\) block. | |
| 428 | 2936 */ |
| 1067 | 2937 (feature, filename, noerror)) |
| 428 | 2938 { |
| 2939 Lisp_Object tem; | |
| 2940 CHECK_SYMBOL (feature); | |
| 2941 tem = Fmemq (feature, Vfeatures); | |
| 2942 LOADHIST_ATTACH (Fcons (Qrequire, feature)); | |
| 2943 if (!NILP (tem)) | |
| 2944 return feature; | |
| 2945 else | |
| 2946 { | |
| 2947 int speccount = specpdl_depth (); | |
| 2948 | |
| 2949 /* Value saved here is to be restored into Vautoload_queue */ | |
| 2950 record_unwind_protect (un_autoload, Vautoload_queue); | |
| 2951 Vautoload_queue = Qt; | |
| 2952 | |
| 1067 | 2953 tem = call4 (Qload, NILP (filename) ? Fsymbol_name (feature) : filename, |
| 1261 | 2954 noerror, Qrequire, Qnil); |
| 1067 | 2955 /* If load failed entirely, return nil. */ |
| 2956 if (NILP (tem)) | |
| 2957 return unbind_to_1 (speccount, Qnil); | |
| 428 | 2958 |
| 2959 tem = Fmemq (feature, Vfeatures); | |
| 2960 if (NILP (tem)) | |
| 563 | 2961 invalid_state ("Required feature was not provided", feature); |
| 428 | 2962 |
| 2963 /* Once loading finishes, don't undo it. */ | |
| 2964 Vautoload_queue = Qt; | |
| 771 | 2965 return unbind_to_1 (speccount, feature); |
| 428 | 2966 } |
| 2967 } | |
| 2968 | |
| 2969 /* base64 encode/decode functions. | |
| 2970 | |
| 2971 Originally based on code from GNU recode. Ported to FSF Emacs by | |
| 2972 Lars Magne Ingebrigtsen and Karl Heuer. Ported to XEmacs and | |
| 2973 subsequently heavily hacked by Hrvoje Niksic. */ | |
| 2974 | |
| 2975 #define MIME_LINE_LENGTH 72 | |
| 2976 | |
| 2977 #define IS_ASCII(Character) \ | |
| 2978 ((Character) < 128) | |
| 2979 #define IS_BASE64(Character) \ | |
| 2980 (IS_ASCII (Character) && base64_char_to_value[Character] >= 0) | |
| 2981 | |
| 2982 /* 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
|
2983 static Ascbyte base64_value_to_char[64] = |
| 428 | 2984 { |
| 2985 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', /* 0- 9 */ | |
| 2986 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', /* 10-19 */ | |
| 2987 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', /* 20-29 */ | |
| 2988 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', /* 30-39 */ | |
| 2989 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', /* 40-49 */ | |
| 2990 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', /* 50-59 */ | |
| 2991 '8', '9', '+', '/' /* 60-63 */ | |
| 2992 }; | |
| 2993 | |
| 2994 /* Table of base64 values for first 128 characters. */ | |
| 2995 static short base64_char_to_value[128] = | |
| 2996 { | |
| 2997 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0- 9 */ | |
| 2998 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 10- 19 */ | |
| 2999 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 20- 29 */ | |
| 3000 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 30- 39 */ | |
| 3001 -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, /* 40- 49 */ | |
| 3002 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, /* 50- 59 */ | |
| 3003 -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, /* 60- 69 */ | |
| 3004 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, /* 70- 79 */ | |
| 3005 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, /* 80- 89 */ | |
| 3006 25, -1, -1, -1, -1, -1, -1, 26, 27, 28, /* 90- 99 */ | |
| 3007 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, /* 100-109 */ | |
| 3008 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, /* 110-119 */ | |
| 3009 49, 50, 51, -1, -1, -1, -1, -1 /* 120-127 */ | |
| 3010 }; | |
| 3011 | |
| 3012 /* The following diagram shows the logical steps by which three octets | |
| 3013 get transformed into four base64 characters. | |
| 3014 | |
| 3015 .--------. .--------. .--------. | |
| 3016 |aaaaaabb| |bbbbcccc| |ccdddddd| | |
| 3017 `--------' `--------' `--------' | |
| 3018 6 2 4 4 2 6 | |
| 3019 .--------+--------+--------+--------. | |
| 3020 |00aaaaaa|00bbbbbb|00cccccc|00dddddd| | |
| 3021 `--------+--------+--------+--------' | |
| 3022 | |
| 3023 .--------+--------+--------+--------. | |
| 3024 |AAAAAAAA|BBBBBBBB|CCCCCCCC|DDDDDDDD| | |
| 3025 `--------+--------+--------+--------' | |
| 3026 | |
| 3027 The octets are divided into 6 bit chunks, which are then encoded into | |
| 3028 base64 characters. */ | |
| 3029 | |
|
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
|
3030 static DECLARE_DOESNT_RETURN (base64_conversion_error (const Ascbyte *, |
| 2268 | 3031 Lisp_Object)); |
| 3032 | |
| 575 | 3033 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
|
3034 base64_conversion_error (const Ascbyte *reason, Lisp_Object frob) |
| 563 | 3035 { |
| 3036 signal_error (Qbase64_conversion_error, reason, frob); | |
| 3037 } | |
| 3038 | |
| 3039 #define ADVANCE_INPUT(c, stream) \ | |
| 867 | 3040 ((ec = Lstream_get_ichar (stream)) == -1 ? 0 : \ |
| 563 | 3041 ((ec > 255) ? \ |
| 3042 (base64_conversion_error ("Non-ascii character in base64 input", \ | |
| 3043 make_char (ec)), 0) \ | |
| 867 | 3044 : (c = (Ibyte)ec), 1)) |
| 665 | 3045 |
| 3046 static Bytebpos | |
| 867 | 3047 base64_encode_1 (Lstream *istream, Ibyte *to, int line_break) |
| 428 | 3048 { |
| 3049 EMACS_INT counter = 0; | |
| 867 | 3050 Ibyte *e = to; |
| 3051 Ichar ec; | |
| 428 | 3052 unsigned int value; |
| 3053 | |
| 3054 while (1) | |
| 3055 { | |
| 1204 | 3056 Ibyte c = 0; |
| 428 | 3057 if (!ADVANCE_INPUT (c, istream)) |
| 3058 break; | |
| 3059 | |
| 3060 /* Wrap line every 76 characters. */ | |
| 3061 if (line_break) | |
| 3062 { | |
| 3063 if (counter < MIME_LINE_LENGTH / 4) | |
| 3064 counter++; | |
| 3065 else | |
| 3066 { | |
| 3067 *e++ = '\n'; | |
| 3068 counter = 1; | |
| 3069 } | |
| 3070 } | |
| 3071 | |
| 3072 /* Process first byte of a triplet. */ | |
| 3073 *e++ = base64_value_to_char[0x3f & c >> 2]; | |
| 3074 value = (0x03 & c) << 4; | |
| 3075 | |
| 3076 /* Process second byte of a triplet. */ | |
| 3077 if (!ADVANCE_INPUT (c, istream)) | |
| 3078 { | |
| 3079 *e++ = base64_value_to_char[value]; | |
| 3080 *e++ = '='; | |
| 3081 *e++ = '='; | |
| 3082 break; | |
| 3083 } | |
| 3084 | |
| 3085 *e++ = base64_value_to_char[value | (0x0f & c >> 4)]; | |
| 3086 value = (0x0f & c) << 2; | |
| 3087 | |
| 3088 /* Process third byte of a triplet. */ | |
| 3089 if (!ADVANCE_INPUT (c, istream)) | |
| 3090 { | |
| 3091 *e++ = base64_value_to_char[value]; | |
| 3092 *e++ = '='; | |
| 3093 break; | |
| 3094 } | |
| 3095 | |
| 3096 *e++ = base64_value_to_char[value | (0x03 & c >> 6)]; | |
| 3097 *e++ = base64_value_to_char[0x3f & c]; | |
| 3098 } | |
| 3099 | |
| 3100 return e - to; | |
| 3101 } | |
| 3102 #undef ADVANCE_INPUT | |
| 3103 | |
| 3104 /* Get next character from the stream, except that non-base64 | |
| 3105 characters are ignored. This is in accordance with rfc2045. EC | |
| 867 | 3106 should be an Ichar, so that it can hold -1 as the value for EOF. */ |
| 428 | 3107 #define ADVANCE_INPUT_IGNORE_NONBASE64(ec, stream, streampos) do { \ |
| 867 | 3108 ec = Lstream_get_ichar (stream); \ |
| 428 | 3109 ++streampos; \ |
| 3110 /* IS_BASE64 may not be called with negative arguments so check for \ | |
| 3111 EOF first. */ \ | |
| 3112 if (ec < 0 || IS_BASE64 (ec) || ec == '=') \ | |
| 3113 break; \ | |
| 3114 } while (1) | |
| 3115 | |
| 3116 #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
|
3117 pos += set_itext_ichar (pos, (Ichar)((Binbyte)(val))); \ |
| 428 | 3118 ++ccnt; \ |
| 3119 } while (0) | |
| 3120 | |
| 665 | 3121 static Bytebpos |
| 867 | 3122 base64_decode_1 (Lstream *istream, Ibyte *to, Charcount *ccptr) |
| 428 | 3123 { |
| 3124 Charcount ccnt = 0; | |
| 867 | 3125 Ibyte *e = to; |
| 428 | 3126 EMACS_INT streampos = 0; |
| 3127 | |
| 3128 while (1) | |
| 3129 { | |
| 867 | 3130 Ichar ec; |
| 428 | 3131 unsigned long value; |
| 3132 | |
| 3133 /* Process first byte of a quadruplet. */ | |
| 3134 ADVANCE_INPUT_IGNORE_NONBASE64 (ec, istream, streampos); | |
| 3135 if (ec < 0) | |
| 3136 break; | |
| 3137 if (ec == '=') | |
| 563 | 3138 base64_conversion_error ("Illegal `=' character while decoding base64", |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5560
diff
changeset
|
3139 make_fixnum (streampos)); |
| 428 | 3140 value = base64_char_to_value[ec] << 18; |
| 3141 | |
| 3142 /* Process second byte of a quadruplet. */ | |
| 3143 ADVANCE_INPUT_IGNORE_NONBASE64 (ec, istream, streampos); | |
| 3144 if (ec < 0) | |
| 563 | 3145 base64_conversion_error ("Premature EOF while decoding base64", |
| 3146 Qunbound); | |
| 428 | 3147 if (ec == '=') |
| 563 | 3148 base64_conversion_error ("Illegal `=' character while decoding base64", |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5560
diff
changeset
|
3149 make_fixnum (streampos)); |
| 428 | 3150 value |= base64_char_to_value[ec] << 12; |
| 3151 STORE_BYTE (e, value >> 16, ccnt); | |
| 3152 | |
| 3153 /* Process third byte of a quadruplet. */ | |
| 3154 ADVANCE_INPUT_IGNORE_NONBASE64 (ec, istream, streampos); | |
| 3155 if (ec < 0) | |
| 563 | 3156 base64_conversion_error ("Premature EOF while decoding base64", |
| 3157 Qunbound); | |
| 428 | 3158 |
| 3159 if (ec == '=') | |
| 3160 { | |
| 3161 ADVANCE_INPUT_IGNORE_NONBASE64 (ec, istream, streampos); | |
| 3162 if (ec < 0) | |
| 563 | 3163 base64_conversion_error ("Premature EOF while decoding base64", |
| 3164 Qunbound); | |
| 428 | 3165 if (ec != '=') |
| 563 | 3166 base64_conversion_error |
| 3167 ("Padding `=' expected but not found while decoding base64", | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5560
diff
changeset
|
3168 make_fixnum (streampos)); |
| 428 | 3169 continue; |
| 3170 } | |
| 3171 | |
| 3172 value |= base64_char_to_value[ec] << 6; | |
| 3173 STORE_BYTE (e, 0xff & value >> 8, ccnt); | |
| 3174 | |
| 3175 /* Process fourth byte of a quadruplet. */ | |
| 3176 ADVANCE_INPUT_IGNORE_NONBASE64 (ec, istream, streampos); | |
| 3177 if (ec < 0) | |
| 563 | 3178 base64_conversion_error ("Premature EOF while decoding base64", |
| 3179 Qunbound); | |
| 428 | 3180 if (ec == '=') |
| 3181 continue; | |
| 3182 | |
| 3183 value |= base64_char_to_value[ec]; | |
| 3184 STORE_BYTE (e, 0xff & value, ccnt); | |
| 3185 } | |
| 3186 | |
| 3187 *ccptr = ccnt; | |
| 3188 return e - to; | |
| 3189 } | |
| 3190 #undef ADVANCE_INPUT | |
| 3191 #undef ADVANCE_INPUT_IGNORE_NONBASE64 | |
| 3192 #undef STORE_BYTE | |
| 3193 | |
| 3194 DEFUN ("base64-encode-region", Fbase64_encode_region, 2, 3, "r", /* | |
| 444 | 3195 Base64-encode the region between START and END. |
| 428 | 3196 Return the length of the encoded text. |
| 3197 Optional third argument NO-LINE-BREAK means do not break long lines | |
| 3198 into shorter lines. | |
| 3199 */ | |
| 444 | 3200 (start, end, no_line_break)) |
| 428 | 3201 { |
| 867 | 3202 Ibyte *encoded; |
| 665 | 3203 Bytebpos encoded_length; |
| 428 | 3204 Charcount allength, length; |
| 3205 struct buffer *buf = current_buffer; | |
| 665 | 3206 Charbpos begv, zv, old_pt = BUF_PT (buf); |
| 428 | 3207 Lisp_Object input; |
| 851 | 3208 int speccount = specpdl_depth (); |
| 428 | 3209 |
| 444 | 3210 get_buffer_range_char (buf, start, end, &begv, &zv, 0); |
| 428 | 3211 barf_if_buffer_read_only (buf, begv, zv); |
| 3212 | |
| 3213 /* We need to allocate enough room for encoding the text. | |
| 3214 We need 33 1/3% more space, plus a newline every 76 | |
| 3215 characters, and then we round up. */ | |
| 3216 length = zv - begv; | |
| 3217 allength = length + length/3 + 1; | |
| 3218 allength += allength / MIME_LINE_LENGTH + 1 + 6; | |
| 3219 | |
| 3220 input = make_lisp_buffer_input_stream (buf, begv, zv, 0); | |
| 867 | 3221 /* We needn't multiply allength with MAX_ICHAR_LEN because all the |
| 428 | 3222 base64 characters will be single-byte. */ |
| 867 | 3223 encoded = (Ibyte *) MALLOC_OR_ALLOCA (allength); |
| 428 | 3224 encoded_length = base64_encode_1 (XLSTREAM (input), encoded, |
| 3225 NILP (no_line_break)); | |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
5002
diff
changeset
|
3226 assert (encoded_length <= allength); |
| 428 | 3227 Lstream_delete (XLSTREAM (input)); |
| 3228 | |
| 3229 /* Now we have encoded the region, so we insert the new contents | |
| 3230 and delete the old. (Insert first in order to preserve markers.) */ | |
| 3231 buffer_insert_raw_string_1 (buf, begv, encoded, encoded_length, 0); | |
| 851 | 3232 unbind_to (speccount); |
| 428 | 3233 buffer_delete_range (buf, begv + encoded_length, zv + encoded_length, 0); |
| 3234 | |
| 3235 /* Simulate FSF Emacs implementation of this function: if point was | |
| 3236 in the region, place it at the beginning. */ | |
| 3237 if (old_pt >= begv && old_pt < zv) | |
| 3238 BUF_SET_PT (buf, begv); | |
| 3239 | |
| 3240 /* We return the length of the encoded text. */ | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5560
diff
changeset
|
3241 return make_fixnum (encoded_length); |
| 428 | 3242 } |
| 3243 | |
| 3244 DEFUN ("base64-encode-string", Fbase64_encode_string, 1, 2, 0, /* | |
| 3245 Base64 encode STRING and return the result. | |
| 444 | 3246 Optional argument NO-LINE-BREAK means do not break long lines |
| 3247 into shorter lines. | |
| 428 | 3248 */ |
| 3249 (string, no_line_break)) | |
| 3250 { | |
| 3251 Charcount allength, length; | |
| 665 | 3252 Bytebpos encoded_length; |
| 867 | 3253 Ibyte *encoded; |
| 428 | 3254 Lisp_Object input, result; |
| 3255 int speccount = specpdl_depth(); | |
| 3256 | |
| 3257 CHECK_STRING (string); | |
| 3258 | |
| 826 | 3259 length = string_char_length (string); |
| 428 | 3260 allength = length + length/3 + 1; |
| 3261 allength += allength / MIME_LINE_LENGTH + 1 + 6; | |
| 3262 | |
| 3263 input = make_lisp_string_input_stream (string, 0, -1); | |
| 867 | 3264 encoded = (Ibyte *) MALLOC_OR_ALLOCA (allength); |
| 428 | 3265 encoded_length = base64_encode_1 (XLSTREAM (input), encoded, |
| 3266 NILP (no_line_break)); | |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
5002
diff
changeset
|
3267 assert (encoded_length <= allength); |
| 428 | 3268 Lstream_delete (XLSTREAM (input)); |
| 3269 result = make_string (encoded, encoded_length); | |
| 851 | 3270 unbind_to (speccount); |
| 428 | 3271 return result; |
| 3272 } | |
| 3273 | |
| 3274 DEFUN ("base64-decode-region", Fbase64_decode_region, 2, 2, "r", /* | |
| 444 | 3275 Base64-decode the region between START and END. |
| 428 | 3276 Return the length of the decoded text. |
| 3277 If the region can't be decoded, return nil and don't modify the buffer. | |
| 3278 Characters out of the base64 alphabet are ignored. | |
| 3279 */ | |
| 444 | 3280 (start, end)) |
| 428 | 3281 { |
| 3282 struct buffer *buf = current_buffer; | |
| 665 | 3283 Charbpos begv, zv, old_pt = BUF_PT (buf); |
| 867 | 3284 Ibyte *decoded; |
| 665 | 3285 Bytebpos decoded_length; |
| 428 | 3286 Charcount length, cc_decoded_length; |
| 3287 Lisp_Object input; | |
| 3288 int speccount = specpdl_depth(); | |
| 3289 | |
| 444 | 3290 get_buffer_range_char (buf, start, end, &begv, &zv, 0); |
| 428 | 3291 barf_if_buffer_read_only (buf, begv, zv); |
| 3292 | |
| 3293 length = zv - begv; | |
| 3294 | |
| 3295 input = make_lisp_buffer_input_stream (buf, begv, zv, 0); | |
| 3296 /* We need to allocate enough room for decoding the text. */ | |
| 867 | 3297 decoded = (Ibyte *) MALLOC_OR_ALLOCA (length * MAX_ICHAR_LEN); |
| 428 | 3298 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
|
3299 assert (decoded_length <= length * MAX_ICHAR_LEN); |
| 428 | 3300 Lstream_delete (XLSTREAM (input)); |
| 3301 | |
| 3302 /* Now we have decoded the region, so we insert the new contents | |
| 3303 and delete the old. (Insert first in order to preserve markers.) */ | |
| 3304 BUF_SET_PT (buf, begv); | |
| 3305 buffer_insert_raw_string_1 (buf, begv, decoded, decoded_length, 0); | |
| 851 | 3306 unbind_to (speccount); |
| 428 | 3307 buffer_delete_range (buf, begv + cc_decoded_length, |
| 3308 zv + cc_decoded_length, 0); | |
| 3309 | |
| 3310 /* Simulate FSF Emacs implementation of this function: if point was | |
| 3311 in the region, place it at the beginning. */ | |
| 3312 if (old_pt >= begv && old_pt < zv) | |
| 3313 BUF_SET_PT (buf, begv); | |
| 3314 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5560
diff
changeset
|
3315 return make_fixnum (cc_decoded_length); |
| 428 | 3316 } |
| 3317 | |
| 3318 DEFUN ("base64-decode-string", Fbase64_decode_string, 1, 1, 0, /* | |
| 3319 Base64-decode STRING and return the result. | |
| 3320 Characters out of the base64 alphabet are ignored. | |
| 3321 */ | |
| 3322 (string)) | |
| 3323 { | |
| 867 | 3324 Ibyte *decoded; |
| 665 | 3325 Bytebpos decoded_length; |
| 428 | 3326 Charcount length, cc_decoded_length; |
| 3327 Lisp_Object input, result; | |
| 3328 int speccount = specpdl_depth(); | |
| 3329 | |
| 3330 CHECK_STRING (string); | |
| 3331 | |
| 826 | 3332 length = string_char_length (string); |
| 428 | 3333 /* We need to allocate enough room for decoding the text. */ |
| 867 | 3334 decoded = (Ibyte *) MALLOC_OR_ALLOCA (length * MAX_ICHAR_LEN); |
| 428 | 3335 |
| 3336 input = make_lisp_string_input_stream (string, 0, -1); | |
| 3337 decoded_length = base64_decode_1 (XLSTREAM (input), decoded, | |
| 3338 &cc_decoded_length); | |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
5002
diff
changeset
|
3339 assert (decoded_length <= length * MAX_ICHAR_LEN); |
| 428 | 3340 Lstream_delete (XLSTREAM (input)); |
| 3341 | |
| 3342 result = make_string (decoded, decoded_length); | |
| 851 | 3343 unbind_to (speccount); |
| 428 | 3344 return result; |
| 3345 } | |
| 3346 | |
| 3347 void | |
| 3348 syms_of_fns (void) | |
| 3349 { | |
|
5253
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
3350 DEFSYMBOL (Qmapl); |
|
b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
Aidan Kehoe <kehoea@parhasard.net>
parents:
5241
diff
changeset
|
3351 DEFSYMBOL (Qmapcon); |
|
5607
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
3352 DEFSYMBOL (Qmaplist); |
| 563 | 3353 |
| 3354 DEFERROR_STANDARD (Qbase64_conversion_error, Qconversion_error); | |
| 428 | 3355 |
| 3356 DEFSUBR (Fidentity); | |
| 3357 DEFSUBR (Frandom); | |
| 3358 DEFSUBR (Fsafe_length); | |
|
5273
799742b751c8
Accept circular lists where that is useful in #'mapcar*, #'map* and friends.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5272
diff
changeset
|
3359 DEFSUBR (Flist_length); |
| 428 | 3360 DEFSUBR (Fstring_equal); |
| 801 | 3361 DEFSUBR (Fcompare_strings); |
| 428 | 3362 DEFSUBR (Fstring_lessp); |
| 3363 DEFSUBR (Fstring_modified_tick); | |
| 3364 DEFSUBR (Fappend); | |
| 3365 DEFSUBR (Fconcat); | |
| 3366 DEFSUBR (Fvconcat); | |
| 3367 DEFSUBR (Fbvconcat); | |
| 3368 DEFSUBR (Fcopy_list); | |
| 3369 DEFSUBR (Fcopy_sequence); | |
| 3370 DEFSUBR (Fcopy_alist); | |
| 3371 DEFSUBR (Fnthcdr); | |
| 3372 DEFSUBR (Fnth); | |
| 3373 DEFSUBR (Flast); | |
| 3374 DEFSUBR (Fbutlast); | |
| 3375 DEFSUBR (Fnbutlast); | |
| 3376 DEFSUBR (Fplists_eq); | |
| 3377 DEFSUBR (Fplists_equal); | |
| 3378 DEFSUBR (Flax_plists_eq); | |
| 3379 DEFSUBR (Flax_plists_equal); | |
| 3380 DEFSUBR (Fplist_get); | |
| 3381 DEFSUBR (Fplist_put); | |
| 3382 DEFSUBR (Fplist_remprop); | |
| 3383 DEFSUBR (Fplist_member); | |
| 3384 DEFSUBR (Fcheck_valid_plist); | |
| 3385 DEFSUBR (Fvalid_plist_p); | |
| 3386 DEFSUBR (Fcanonicalize_plist); | |
| 3387 DEFSUBR (Flax_plist_get); | |
| 3388 DEFSUBR (Flax_plist_put); | |
| 3389 DEFSUBR (Flax_plist_remprop); | |
| 3390 DEFSUBR (Flax_plist_member); | |
| 3391 DEFSUBR (Fcanonicalize_lax_plist); | |
| 3392 DEFSUBR (Fdestructive_alist_to_plist); | |
| 3393 DEFSUBR (Fget); | |
| 3394 DEFSUBR (Fput); | |
| 3395 DEFSUBR (Fremprop); | |
| 3396 DEFSUBR (Fobject_plist); | |
|
5255
b5611afbcc76
Support process plists, for greater GNU compatibility.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5253
diff
changeset
|
3397 DEFSUBR (Fobject_setplist); |
| 428 | 3398 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
|
3399 DEFSUBR (Fequalp); |
|
5374
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
3400 |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
3401 #ifdef SUPPORT_CONFOUNDING_FUNCTIONS |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
3402 DEFSUBR (Fold_member); |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
3403 DEFSUBR (Fold_memq); |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
3404 DEFSUBR (Fold_assoc); |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
3405 DEFSUBR (Fold_assq); |
|
5607
1a507c4c6c42
Refactor out sequence-oriented builtins from fns.c to the new sequence.c.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5583
diff
changeset
|
3406 DEFSUBR (Fold_rassq); |
|
5374
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
3407 DEFSUBR (Fold_rassoc); |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
3408 DEFSUBR (Fold_delete); |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
3409 DEFSUBR (Fold_delq); |
| 428 | 3410 DEFSUBR (Fold_equal); |
|
5374
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
3411 DEFSUBR (Fold_eq); |
|
d967d96ca043
Conditionalise the old-* functions and byte codes at compile time.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5360
diff
changeset
|
3412 #endif |
|
5327
d1b17a33450b
Move the heavy lifting from cl-seq.el to C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5309
diff
changeset
|
3413 |
| 428 | 3414 DEFSUBR (Fnconc); |
|
4995
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3415 DEFSUBR (Fmaplist); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3416 DEFSUBR (Fmapl); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3417 DEFSUBR (Fmapcon); |
|
8431b52e43b1
Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4797
diff
changeset
|
3418 |
| 442 | 3419 DEFSUBR (Freplace_list); |
|
5327
d1b17a33450b
Move the heavy lifting from cl-seq.el to C.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5309
diff
changeset
|
3420 |
| 428 | 3421 DEFSUBR (Fload_average); |
| 3422 DEFSUBR (Ffeaturep); | |
| 3423 DEFSUBR (Frequire); | |
| 3424 DEFSUBR (Fprovide); | |
| 3425 DEFSUBR (Fbase64_encode_region); | |
| 3426 DEFSUBR (Fbase64_encode_string); | |
| 3427 DEFSUBR (Fbase64_decode_region); | |
| 3428 DEFSUBR (Fbase64_decode_string); | |
| 771 | 3429 |
|
5224
35c2b7e9c03f
Add #'substring-no-properties, omitting any extent data.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5191
diff
changeset
|
3430 DEFSUBR (Fsubstring_no_properties); |
| 771 | 3431 DEFSUBR (Fsplit_string_by_char); |
| 3432 } | |
| 3433 | |
| 3434 void | |
| 3435 vars_of_fns (void) | |
| 3436 { | |
| 3437 DEFVAR_LISP ("path-separator", &Vpath_separator /* | |
| 3438 The directory separator in search paths, as a string. | |
| 3439 */ ); | |
| 3440 { | |
|
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
|
3441 Ascbyte c = SEPCHAR; |
| 867 | 3442 Vpath_separator = make_string ((Ibyte *) &c, 1); |
| 771 | 3443 } |
| 428 | 3444 } |
| 3445 | |
| 3446 void | |
| 3447 init_provide_once (void) | |
| 3448 { | |
| 3449 DEFVAR_LISP ("features", &Vfeatures /* | |
| 3450 A list of symbols which are the features of the executing emacs. | |
| 3451 Used by `featurep' and `require', and altered by `provide'. | |
| 3452 */ ); | |
| 3453 Vfeatures = Qnil; | |
| 3454 | |
| 3455 Fprovide (intern ("base64")); | |
| 3456 } |