Mercurial > hg > xemacs-beta
annotate src/doprnt.c @ 5504:d3e0482c7899
Move #'split-path to subr.el, as was always the intention.
src/ChangeLog addition:
2011-05-07 Aidan Kehoe <kehoea@parhasard.net>
* fns.c (Fsplit_path): Removed.
* fns.c (syms_of_fns):
Move #'split-path to subr.el, as was always the intention.
lisp/ChangeLog addition:
2011-05-07 Aidan Kehoe <kehoea@parhasard.net>
* subr.el:
* subr.el (split-path): New.
Moved here from fns.c. There's no need to have this in C, it's no
longer used that early at startup.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sat, 07 May 2011 16:57:17 +0100 |
| parents | 308d34e9f07d |
| children | 56144c8593a8 |
| rev | line source |
|---|---|
| 428 | 1 /* Output like sprintf to a buffer of specified size. |
| 2 Also takes args differently: pass one pointer to an array of strings | |
| 3 in addition to the format string which is separate. | |
| 4 Copyright (C) 1995 Free Software Foundation, Inc. | |
| 793 | 5 Copyright (C) 2001, 2002 Ben Wing. |
| 428 | 6 Rewritten by mly to use varargs.h. |
| 7 Rewritten from scratch by Ben Wing (February 1995) for Mule; expanded | |
| 8 to full printf spec. | |
| 1983 | 9 Support for bignums, ratios, and bigfloats added April 2004 by Jerry James. |
| 428 | 10 |
| 11 This file is part of XEmacs. | |
| 12 | |
|
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13 XEmacs is free software: you can redistribute it and/or modify it |
| 428 | 14 under the terms of the GNU General Public License as published by the |
|
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15 Free Software Foundation, either version 3 of the License, or (at your |
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16 option) any later version. |
| 428 | 17 |
| 18 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 19 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 20 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 21 for more details. | |
| 22 | |
| 23 You should have received a copy of the GNU General Public License | |
|
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24 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 428 | 25 |
| 793 | 26 /* Synched up with: Rewritten by Ben Wing. Not in FSF. */ |
| 428 | 27 |
| 28 #include <config.h> | |
| 29 #include "lisp.h" | |
| 30 | |
| 31 #include "buffer.h" | |
| 32 #include "lstream.h" | |
| 33 | |
| 446 | 34 static const char * const valid_flags = "-+ #0"; |
|
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35 static const char * const valid_converters = "dic" "ouxX" "feEgG" "sS" "b" |
| 1983 | 36 #if defined(HAVE_BIGNUM) || defined(HAVE_RATIO) |
| 37 "npyY" | |
| 38 #endif | |
| 39 #ifdef HAVE_BIGFLOAT | |
| 40 "FhHkK" | |
| 41 #endif | |
| 42 ; | |
| 446 | 43 static const char * const int_converters = "dic"; |
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44 static const char * const unsigned_int_converters = "ouxXb"; |
| 446 | 45 static const char * const double_converters = "feEgG"; |
| 46 static const char * const string_converters = "sS"; | |
| 1983 | 47 #if defined(HAVE_BIGNUM) || defined(HAVE_RATIO) |
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48 static const char * const bignum_converters = "npyY\337"; |
| 1983 | 49 #endif |
| 50 #ifdef HAVE_BIGFLOAT | |
| 51 static const char * const bigfloat_converters = "FhHkK"; | |
| 52 #endif | |
| 428 | 53 |
| 54 typedef struct printf_spec printf_spec; | |
| 55 struct printf_spec | |
| 56 { | |
| 57 int argnum; /* which argument does this spec want? This is one-based: | |
| 58 The first argument given is numbered 1, the second | |
| 59 is 2, etc. This is to handle %##$x-type specs. */ | |
| 60 int minwidth; | |
| 61 int precision; | |
| 62 unsigned int minus_flag:1; | |
| 63 unsigned int plus_flag:1; | |
| 64 unsigned int space_flag:1; | |
| 65 unsigned int number_flag:1; | |
| 66 unsigned int zero_flag:1; | |
| 67 unsigned int h_flag:1; | |
| 68 unsigned int l_flag:1; | |
| 69 unsigned int forwarding_precision:1; | |
| 70 char converter; /* converter character or 0 for dummy marker | |
| 71 indicating literal text at the end of the | |
| 72 specification */ | |
| 73 Bytecount text_before; /* position of the first character of the | |
| 74 block of literal text before this spec */ | |
| 75 Bytecount text_before_len; /* length of that text */ | |
| 76 }; | |
| 77 | |
| 78 typedef union printf_arg printf_arg; | |
| 79 union printf_arg | |
| 80 { | |
| 81 long l; | |
| 82 unsigned long ul; | |
| 83 double d; | |
| 867 | 84 Ibyte *bp; |
| 1983 | 85 Lisp_Object obj; |
| 428 | 86 }; |
| 87 | |
| 88 /* We maintain a list of all the % specs in the specification, | |
| 89 along with the offset and length of the block of literal text | |
| 90 before each spec. In addition, we have a "dummy" spec that | |
| 91 represents all the literal text at the end of the specification. | |
| 92 Its converter is 0. */ | |
| 93 | |
| 94 typedef struct | |
| 95 { | |
| 96 Dynarr_declare (struct printf_spec); | |
| 97 } printf_spec_dynarr; | |
| 98 | |
| 99 typedef struct | |
| 100 { | |
| 101 Dynarr_declare (union printf_arg); | |
| 102 } printf_arg_dynarr; | |
| 103 | |
| 448 | 104 /* Append STRING (of length LEN bytes) to STREAM. |
| 105 MINLEN is the minimum field width. | |
| 106 If MINUS_FLAG is set, left-justify the string in its field; | |
| 107 otherwise, right-justify. | |
| 108 If ZERO_FLAG is set, pad with 0's; otherwise pad with spaces. | |
| 109 If MAXLEN is non-negative, the string is first truncated on the | |
| 110 right to that many characters. | |
| 428 | 111 |
| 112 Note that MINLEN and MAXLEN are Charcounts but LEN is a Bytecount. */ | |
| 113 | |
| 114 static void | |
| 867 | 115 doprnt_2 (Lisp_Object stream, const Ibyte *string, Bytecount len, |
| 428 | 116 Charcount minlen, Charcount maxlen, int minus_flag, int zero_flag) |
| 117 { | |
| 118 Lstream *lstr = XLSTREAM (stream); | |
| 448 | 119 Charcount cclen = bytecount_to_charcount (string, len); |
| 120 int to_add = minlen - cclen; | |
| 428 | 121 |
| 122 /* Padding at beginning to right-justify ... */ | |
| 448 | 123 if (!minus_flag) |
| 124 while (to_add-- > 0) | |
| 125 Lstream_putc (lstr, zero_flag ? '0' : ' '); | |
| 428 | 126 |
| 448 | 127 if (0 <= maxlen && maxlen < cclen) |
| 128 len = charcount_to_bytecount (string, maxlen); | |
| 428 | 129 Lstream_write (lstr, string, len); |
| 130 | |
| 131 /* Padding at end to left-justify ... */ | |
| 448 | 132 if (minus_flag) |
| 133 while (to_add-- > 0) | |
| 134 Lstream_putc (lstr, zero_flag ? '0' : ' '); | |
| 428 | 135 } |
| 136 | |
| 867 | 137 static const Ibyte * |
| 138 parse_off_posnum (const Ibyte *start, const Ibyte *end, int *returned_num) | |
| 428 | 139 { |
| 867 | 140 Ibyte arg_convert[100]; |
| 141 REGISTER Ibyte *arg_ptr = arg_convert; | |
| 428 | 142 |
| 143 *returned_num = -1; | |
| 144 while (start != end && isdigit (*start)) | |
| 145 { | |
| 647 | 146 if (arg_ptr - arg_convert >= (int) sizeof (arg_convert) - 1) |
| 147 syntax_error ("Format converter number too large", Qunbound); | |
| 428 | 148 *arg_ptr++ = *start++; |
| 149 } | |
| 150 *arg_ptr = '\0'; | |
| 151 if (arg_convert != arg_ptr) | |
| 152 *returned_num = atoi ((char *) arg_convert); | |
| 153 return start; | |
| 154 } | |
| 155 | |
| 793 | 156 #define NEXT_ASCII_BYTE(ch) \ |
| 157 do { \ | |
| 158 if (fmt == fmt_end) \ | |
| 159 syntax_error ("Premature end of format string", Qunbound); \ | |
| 160 ch = *fmt; \ | |
| 161 if (ch >= 0200) \ | |
| 162 syntax_error ("Non-ASCII character in format converter spec", \ | |
| 163 Qunbound); \ | |
| 164 fmt++; \ | |
| 428 | 165 } while (0) |
| 166 | |
| 167 #define RESOLVE_FLAG_CONFLICTS(spec) \ | |
| 168 do { \ | |
| 169 if (spec.space_flag && spec.plus_flag) \ | |
| 170 spec.space_flag = 0; \ | |
| 171 if (spec.zero_flag && spec.space_flag) \ | |
| 172 spec.zero_flag = 0; \ | |
| 173 } while (0) | |
| 174 | |
| 175 static printf_spec_dynarr * | |
| 867 | 176 parse_doprnt_spec (const Ibyte *format, Bytecount format_length) |
| 428 | 177 { |
| 867 | 178 const Ibyte *fmt = format; |
| 179 const Ibyte *fmt_end = format + format_length; | |
| 428 | 180 printf_spec_dynarr *specs = Dynarr_new (printf_spec); |
| 181 int prev_argnum = 0; | |
| 182 | |
| 183 while (1) | |
| 184 { | |
| 185 struct printf_spec spec; | |
| 867 | 186 const Ibyte *text_end; |
| 187 Ibyte ch; | |
| 428 | 188 |
| 189 xzero (spec); | |
| 190 if (fmt == fmt_end) | |
| 191 return specs; | |
| 867 | 192 text_end = (Ibyte *) memchr (fmt, '%', fmt_end - fmt); |
| 428 | 193 if (!text_end) |
| 194 text_end = fmt_end; | |
| 195 spec.text_before = fmt - format; | |
| 196 spec.text_before_len = text_end - fmt; | |
| 197 fmt = text_end; | |
| 198 if (fmt != fmt_end) | |
| 199 { | |
| 200 fmt++; /* skip over % */ | |
| 201 | |
| 202 /* A % is special -- no arg number. According to ANSI specs, | |
| 203 field width does not apply to %% conversion. */ | |
| 204 if (fmt != fmt_end && *fmt == '%') | |
| 205 { | |
| 206 spec.converter = '%'; | |
| 207 Dynarr_add (specs, spec); | |
| 208 fmt++; | |
| 209 continue; | |
| 210 } | |
| 211 | |
| 212 /* Is there a field number specifier? */ | |
| 213 { | |
| 867 | 214 const Ibyte *ptr; |
| 428 | 215 int fieldspec; |
| 216 | |
| 217 ptr = parse_off_posnum (fmt, fmt_end, &fieldspec); | |
| 218 if (fieldspec > 0 && ptr != fmt_end && *ptr == '$') | |
| 219 { | |
| 220 /* There is a format specifier */ | |
| 221 prev_argnum = fieldspec; | |
| 222 fmt = ptr + 1; | |
| 223 } | |
| 224 else | |
| 225 prev_argnum++; | |
| 226 spec.argnum = prev_argnum; | |
| 227 } | |
| 228 | |
| 229 /* Parse off any flags */ | |
| 230 NEXT_ASCII_BYTE (ch); | |
| 231 while (strchr (valid_flags, ch)) | |
| 232 { | |
| 233 switch (ch) | |
| 234 { | |
| 446 | 235 case '-': spec.minus_flag = 1; break; |
| 236 case '+': spec.plus_flag = 1; break; | |
| 237 case ' ': spec.space_flag = 1; break; | |
| 428 | 238 case '#': spec.number_flag = 1; break; |
| 446 | 239 case '0': spec.zero_flag = 1; break; |
| 2500 | 240 default: ABORT (); |
| 428 | 241 } |
| 242 NEXT_ASCII_BYTE (ch); | |
| 243 } | |
| 244 | |
| 245 /* Parse off the minimum field width */ | |
| 246 fmt--; /* back up */ | |
| 247 | |
| 248 /* | |
| 249 * * means the field width was passed as an argument. | |
| 250 * Mark the current spec as one that forwards its | |
| 251 * field width and flags to the next spec in the array. | |
| 252 * Then create a new spec and continue with the parsing. | |
| 253 */ | |
| 254 if (fmt != fmt_end && *fmt == '*') | |
| 255 { | |
| 256 spec.converter = '*'; | |
| 257 RESOLVE_FLAG_CONFLICTS(spec); | |
| 258 Dynarr_add (specs, spec); | |
| 259 xzero (spec); | |
| 260 spec.argnum = ++prev_argnum; | |
| 261 fmt++; | |
| 262 } | |
| 263 else | |
| 264 { | |
| 265 fmt = parse_off_posnum (fmt, fmt_end, &spec.minwidth); | |
| 266 if (spec.minwidth == -1) | |
| 267 spec.minwidth = 0; | |
| 268 } | |
| 269 | |
| 270 /* Parse off any precision specified */ | |
| 271 NEXT_ASCII_BYTE (ch); | |
| 272 if (ch == '.') | |
| 273 { | |
| 274 /* | |
| 275 * * means the precision was passed as an argument. | |
| 276 * Mark the current spec as one that forwards its | |
| 277 * fieldwidth, flags and precision to the next spec in | |
| 278 * the array. Then create a new spec and continue | |
| 279 * with the parse. | |
| 280 */ | |
| 281 if (fmt != fmt_end && *fmt == '*') | |
| 282 { | |
| 283 spec.converter = '*'; | |
| 284 spec.forwarding_precision = 1; | |
| 285 RESOLVE_FLAG_CONFLICTS(spec); | |
| 286 Dynarr_add (specs, spec); | |
| 287 xzero (spec); | |
| 288 spec.argnum = ++prev_argnum; | |
| 289 fmt++; | |
| 290 } | |
| 291 else | |
| 292 { | |
| 293 fmt = parse_off_posnum (fmt, fmt_end, &spec.precision); | |
| 294 if (spec.precision == -1) | |
| 295 spec.precision = 0; | |
| 296 } | |
| 297 NEXT_ASCII_BYTE (ch); | |
| 298 } | |
| 299 else | |
| 300 /* No precision specified */ | |
| 301 spec.precision = -1; | |
| 302 | |
| 303 /* Parse off h or l flag */ | |
| 304 if (ch == 'h' || ch == 'l') | |
| 305 { | |
| 306 if (ch == 'h') | |
| 307 spec.h_flag = 1; | |
| 308 else | |
| 309 spec.l_flag = 1; | |
| 310 NEXT_ASCII_BYTE (ch); | |
| 311 } | |
| 312 | |
| 313 if (!strchr (valid_converters, ch)) | |
| 563 | 314 syntax_error ("Invalid converter character", make_char (ch)); |
| 428 | 315 spec.converter = ch; |
| 316 } | |
| 317 | |
| 318 RESOLVE_FLAG_CONFLICTS(spec); | |
| 319 Dynarr_add (specs, spec); | |
| 320 } | |
| 321 | |
| 1204 | 322 RETURN_NOT_REACHED(specs); /* suppress compiler warning */ |
| 428 | 323 } |
| 324 | |
| 325 static int | |
| 326 get_args_needed (printf_spec_dynarr *specs) | |
| 327 { | |
| 328 int args_needed = 0; | |
| 329 REGISTER int i; | |
| 330 | |
| 331 /* Figure out how many args are needed. This may be less than | |
| 332 the number of specs because a spec could be %% or could be | |
| 333 missing (literal text at end of format string) or there | |
| 334 could be specs where the field number is explicitly given. | |
| 335 We just look for the maximum argument number that's referenced. */ | |
| 336 | |
| 337 for (i = 0; i < Dynarr_length (specs); i++) | |
| 338 { | |
| 339 char ch = Dynarr_at (specs, i).converter; | |
| 340 if (ch && ch != '%') | |
| 341 { | |
| 342 int argnum = Dynarr_at (specs, i).argnum; | |
| 343 if (argnum > args_needed) | |
| 344 args_needed = argnum; | |
| 345 } | |
| 346 } | |
| 347 | |
| 348 return args_needed; | |
| 349 } | |
| 350 | |
| 351 static printf_arg_dynarr * | |
| 352 get_doprnt_args (printf_spec_dynarr *specs, va_list vargs) | |
| 353 { | |
| 354 printf_arg_dynarr *args = Dynarr_new (printf_arg); | |
| 355 union printf_arg arg; | |
| 356 REGISTER int i; | |
| 357 int args_needed = get_args_needed (specs); | |
| 358 | |
| 359 xzero (arg); | |
| 360 for (i = 1; i <= args_needed; i++) | |
| 361 { | |
| 362 int j; | |
| 363 char ch; | |
| 364 struct printf_spec *spec = 0; | |
| 365 | |
| 366 for (j = 0; j < Dynarr_length (specs); j++) | |
| 367 { | |
| 368 spec = Dynarr_atp (specs, j); | |
| 369 if (spec->argnum == i) | |
| 370 break; | |
| 371 } | |
| 372 | |
| 373 if (j == Dynarr_length (specs)) | |
| 1318 | 374 syntax_error ("No conversion spec for argument", make_int (i)); |
| 428 | 375 |
| 376 ch = spec->converter; | |
| 377 | |
| 378 if (strchr (int_converters, ch)) | |
| 379 { | |
| 446 | 380 if (spec->l_flag) |
| 428 | 381 arg.l = va_arg (vargs, long); |
| 382 else | |
| 446 | 383 /* int even if ch == 'c' or spec->h_flag: |
| 384 "the type used in va_arg is supposed to match the | |
| 385 actual type **after default promotions**." | |
| 386 Hence we read an int, not a short, if spec->h_flag. */ | |
| 387 arg.l = va_arg (vargs, int); | |
| 428 | 388 } |
| 389 else if (strchr (unsigned_int_converters, ch)) | |
| 390 { | |
| 446 | 391 if (spec->l_flag) |
| 428 | 392 arg.ul = va_arg (vargs, unsigned long); |
| 393 else | |
| 446 | 394 /* unsigned int even if ch == 'c' or spec->h_flag */ |
| 395 arg.ul = (unsigned long) va_arg (vargs, unsigned int); | |
| 428 | 396 } |
| 397 else if (strchr (double_converters, ch)) | |
| 398 arg.d = va_arg (vargs, double); | |
| 399 else if (strchr (string_converters, ch)) | |
| 867 | 400 arg.bp = va_arg (vargs, Ibyte *); |
| 1983 | 401 #if defined(HAVE_BIGNUM) || defined(HAVE_RATIO) |
| 402 else if (strchr (bignum_converters, ch)) | |
| 403 arg.obj = va_arg (vargs, Lisp_Object); | |
| 404 #endif | |
| 405 #ifdef HAVE_BIGFLOAT | |
| 406 else if (strchr (bigfloat_converters, ch)) | |
| 407 arg.obj = va_arg (vargs, Lisp_Object); | |
| 408 #endif | |
| 2500 | 409 else ABORT (); |
| 428 | 410 |
| 411 Dynarr_add (args, arg); | |
| 412 } | |
| 413 | |
| 414 return args; | |
| 415 } | |
| 416 | |
| 771 | 417 /* Most basic entry point into string formatting. |
| 418 | |
| 419 Generate output from a format-spec (either a Lisp string | |
| 420 FORMAT_RELOC, or a C string FORMAT_NONRELOC of length FORMAT_LENGTH | |
| 421 -- which *MUST NOT* come from Lisp string data, unless GC is | |
| 422 inhibited). Output goes to STREAM. Returns the number of bytes | |
| 423 stored into STREAM. Arguments are either C-type arguments in | |
| 424 va_list VARGS, or an array of Lisp objects in LARGS of size | |
| 425 NARGS. (Behavior is different in the two cases -- you either get | |
| 426 standard sprintf() behavior or `format' behavior.) */ | |
| 428 | 427 |
| 428 static Bytecount | |
| 867 | 429 emacs_doprnt_1 (Lisp_Object stream, const Ibyte *format_nonreloc, |
| 771 | 430 Bytecount format_length, Lisp_Object format_reloc, |
| 431 int nargs, const Lisp_Object *largs, va_list vargs) | |
| 428 | 432 { |
| 433 printf_spec_dynarr *specs = 0; | |
| 434 printf_arg_dynarr *args = 0; | |
| 435 REGISTER int i; | |
| 436 int init_byte_count = Lstream_byte_count (XLSTREAM (stream)); | |
| 771 | 437 int count; |
| 428 | 438 |
| 439 if (!NILP (format_reloc)) | |
| 440 { | |
| 441 format_nonreloc = XSTRING_DATA (format_reloc); | |
| 442 format_length = XSTRING_LENGTH (format_reloc); | |
| 443 } | |
| 444 if (format_length < 0) | |
| 442 | 445 format_length = (Bytecount) strlen ((const char *) format_nonreloc); |
| 428 | 446 |
| 447 specs = parse_doprnt_spec (format_nonreloc, format_length); | |
| 771 | 448 count = record_unwind_protect_freeing_dynarr (specs); |
| 449 | |
| 428 | 450 if (largs) |
| 451 { | |
| 446 | 452 /* allow too many args for string, but not too few */ |
| 428 | 453 if (nargs < get_args_needed (specs)) |
| 563 | 454 signal_error_1 (Qwrong_number_of_arguments, |
| 1318 | 455 list3 (Qformat, |
| 456 make_int (nargs), | |
| 457 !NILP (format_reloc) ? format_reloc : | |
| 458 make_string (format_nonreloc, format_length))); | |
| 428 | 459 } |
| 460 else | |
| 461 { | |
| 462 args = get_doprnt_args (specs, vargs); | |
| 771 | 463 record_unwind_protect_freeing_dynarr (args); |
| 428 | 464 } |
| 465 | |
| 466 for (i = 0; i < Dynarr_length (specs); i++) | |
| 467 { | |
| 468 struct printf_spec *spec = Dynarr_atp (specs, i); | |
| 469 char ch; | |
| 470 | |
| 471 /* Copy the text before */ | |
| 472 if (!NILP (format_reloc)) /* refetch in case of GC below */ | |
| 473 format_nonreloc = XSTRING_DATA (format_reloc); | |
| 446 | 474 |
| 771 | 475 doprnt_2 (stream, format_nonreloc + spec->text_before, |
| 446 | 476 spec->text_before_len, 0, -1, 0, 0); |
| 428 | 477 |
| 478 ch = spec->converter; | |
| 479 | |
| 480 if (!ch) | |
| 481 continue; | |
| 482 | |
| 483 if (ch == '%') | |
| 484 { | |
| 867 | 485 doprnt_2 (stream, (Ibyte *) &ch, 1, 0, -1, 0, 0); |
| 428 | 486 continue; |
| 487 } | |
| 488 | |
| 489 /* The char '*' as converter means the field width, precision | |
| 490 was specified as an argument. Extract the data and forward | |
| 491 it to the next spec, to which it will apply. */ | |
| 492 if (ch == '*') | |
| 493 { | |
| 494 struct printf_spec *nextspec = Dynarr_atp (specs, i + 1); | |
| 495 Lisp_Object obj = largs[spec->argnum - 1]; | |
| 496 | |
| 497 if (INTP (obj)) | |
| 498 { | |
| 499 if (spec->forwarding_precision) | |
| 500 { | |
| 501 nextspec->precision = XINT (obj); | |
| 502 nextspec->minwidth = spec->minwidth; | |
| 503 } | |
| 504 else | |
| 505 { | |
| 506 nextspec->minwidth = XINT (obj); | |
| 446 | 507 if (XINT (obj) < 0) |
| 428 | 508 { |
| 509 spec->minus_flag = 1; | |
| 510 nextspec->minwidth = - nextspec->minwidth; | |
| 511 } | |
| 512 } | |
| 446 | 513 nextspec->minus_flag = spec->minus_flag; |
| 514 nextspec->plus_flag = spec->plus_flag; | |
| 515 nextspec->space_flag = spec->space_flag; | |
| 428 | 516 nextspec->number_flag = spec->number_flag; |
| 446 | 517 nextspec->zero_flag = spec->zero_flag; |
| 428 | 518 } |
| 519 continue; | |
| 520 } | |
| 521 | |
| 522 if (largs && (spec->argnum < 1 || spec->argnum > nargs)) | |
| 771 | 523 syntax_error ("Invalid repositioning argument", |
| 524 make_int (spec->argnum)); | |
| 428 | 525 |
| 526 else if (ch == 'S' || ch == 's') | |
| 527 { | |
| 867 | 528 Ibyte *string; |
| 428 | 529 Bytecount string_len; |
| 530 | |
| 531 if (!largs) | |
| 532 { | |
| 533 string = Dynarr_at (args, spec->argnum - 1).bp; | |
| 771 | 534 #if 0 |
| 535 /* [[ error() can be called with null string arguments. | |
| 428 | 536 E.g., in fileio.c, the return value of strerror() |
| 537 is never checked. We'll print (null), like some | |
| 538 printf implementations do. Would it be better (and safe) | |
| 539 to signal an error instead? Or should we just use the | |
| 771 | 540 empty string? -dkindred@cs.cmu.edu 8/1997 ]] |
| 541 Do not hide bugs. --ben | |
| 428 | 542 */ |
| 543 if (!string) | |
| 867 | 544 string = (Ibyte *) "(null)"; |
| 771 | 545 #else |
| 546 assert (string); | |
| 547 #endif | |
| 428 | 548 string_len = strlen ((char *) string); |
| 549 } | |
| 550 else | |
| 551 { | |
| 552 Lisp_Object obj = largs[spec->argnum - 1]; | |
| 793 | 553 Lisp_Object ls; |
| 428 | 554 |
| 555 if (ch == 'S') | |
| 556 { | |
| 557 /* For `S', prin1 the argument and then treat like | |
| 558 a string. */ | |
|
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|
559 ls = prin1_to_string (obj, 0); |
| 428 | 560 } |
| 561 else if (STRINGP (obj)) | |
| 793 | 562 ls = obj; |
| 428 | 563 else if (SYMBOLP (obj)) |
| 564 ls = XSYMBOL (obj)->name; | |
| 565 else | |
| 566 { | |
| 567 /* convert to string using princ. */ | |
|
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|
568 ls = prin1_to_string (obj, 1); |
| 428 | 569 } |
| 793 | 570 string = XSTRING_DATA (ls); |
| 571 string_len = XSTRING_LENGTH (ls); | |
| 428 | 572 } |
| 573 | |
| 771 | 574 doprnt_2 (stream, string, string_len, spec->minwidth, |
| 428 | 575 spec->precision, spec->minus_flag, spec->zero_flag); |
| 576 } | |
| 577 | |
| 578 else | |
| 579 { | |
| 580 /* Must be a number. */ | |
| 581 union printf_arg arg; | |
| 582 | |
| 583 if (!largs) | |
| 584 { | |
| 585 arg = Dynarr_at (args, spec->argnum - 1); | |
| 586 } | |
| 587 else | |
| 588 { | |
| 589 Lisp_Object obj = largs[spec->argnum - 1]; | |
| 590 if (CHARP (obj)) | |
| 591 obj = make_int (XCHAR (obj)); | |
| 1983 | 592 if (!NUMBERP (obj)) |
| 428 | 593 { |
| 2267 | 594 /* WARNING! This MUST be big enough for the sprintf below */ |
| 2272 | 595 CIbyte msg[48]; |
| 596 sprintf (msg, | |
| 2267 | 597 "format specifier %%%c doesn't match argument type", |
| 598 ch); | |
|
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599 syntax_error (msg, Qunbound); |
| 428 | 600 } |
| 601 else if (strchr (double_converters, ch)) | |
| 1983 | 602 { |
|
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603 if (INTP (obj)) |
|
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604 arg.d = XINT (obj); |
|
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605 else if (FLOATP (obj)) |
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606 arg.d = XFLOAT_DATA (obj); |
| 1983 | 607 #ifdef HAVE_BIGNUM |
| 608 else if (BIGNUMP (obj)) | |
| 609 arg.d = bignum_to_double (XBIGNUM_DATA (obj)); | |
| 610 #endif | |
| 611 #ifdef HAVE_RATIO | |
| 612 else if (RATIOP (obj)) | |
| 613 arg.d = ratio_to_double (XRATIO_DATA (obj)); | |
| 614 #endif | |
| 615 #ifdef HAVE_BIGFLOAT | |
| 616 else if (BIGFLOATP (obj)) | |
| 617 { | |
| 618 arg.obj = obj; | |
| 619 switch (ch) | |
| 620 { | |
| 621 case 'f': ch = 'F'; break; | |
| 622 case 'e': ch = 'h'; break; | |
| 623 case 'E': ch = 'H'; break; | |
| 624 case 'g': ch = 'k'; break; | |
| 625 case 'G': ch = 'K'; break; | |
| 626 } | |
| 627 } | |
| 628 #endif | |
| 629 } | |
| 428 | 630 else |
| 631 { | |
| 446 | 632 if (FLOATP (obj)) |
|
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|
633 obj = Ftruncate (obj, Qnil); |
| 1983 | 634 #ifdef HAVE_BIGFLOAT |
| 635 else if (BIGFLOATP (obj)) | |
| 636 { | |
| 637 #ifdef HAVE_BIGNUM | |
| 638 bignum_set_bigfloat (scratch_bignum, | |
| 639 XBIGFLOAT_DATA (obj)); | |
| 640 if (strchr (unsigned_int_converters, ch) && | |
| 641 bignum_sign (scratch_bignum) < 0) | |
| 642 dead_wrong_type_argument (Qnonnegativep, obj); | |
| 643 obj = | |
| 644 Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 645 #else /* !HAVE_BIGNUM */ | |
| 646 obj = make_int (bigfloat_to_long (XBIGFLOAT_DATA (obj))); | |
| 647 #endif /* HAVE_BIGNUM */ | |
| 648 } | |
| 649 #endif /* HAVE_BIGFLOAT */ | |
| 650 #ifdef HAVE_RATIO | |
| 651 else if (RATIOP (obj)) | |
| 652 { | |
| 653 arg.obj = obj; | |
| 654 switch (ch) | |
| 655 { | |
| 656 case 'i': case 'd': ch = 'n'; break; | |
| 657 case 'o': ch = 'p'; break; | |
| 658 case 'x': ch = 'y'; break; | |
| 659 case 'X': ch = 'Y'; break; | |
|
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|
660 case 'b': ch = '\337'; break; |
| 1983 | 661 default: /* ch == 'u' */ |
| 662 if (strchr (unsigned_int_converters, ch) && | |
| 663 ratio_sign (XRATIO_DATA (obj)) < 0) | |
| 664 dead_wrong_type_argument (Qnonnegativep, obj); | |
| 665 else | |
| 666 ch = 'n'; | |
| 667 } | |
| 668 } | |
| 669 #endif | |
| 670 #ifdef HAVE_BIGNUM | |
| 671 if (BIGNUMP (obj)) | |
| 672 { | |
| 673 arg.obj = obj; | |
| 674 switch (ch) | |
| 675 { | |
| 676 case 'i': case 'd': ch = 'n'; break; | |
| 677 case 'o': ch = 'p'; break; | |
| 678 case 'x': ch = 'y'; break; | |
| 679 case 'X': ch = 'Y'; break; | |
|
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|
680 case 'b': ch = '\337'; break; |
| 1983 | 681 default: /* ch == 'u' */ |
| 682 if (strchr (unsigned_int_converters, ch) && | |
| 683 bignum_sign (XBIGNUM_DATA (obj)) < 0) | |
| 684 dead_wrong_type_argument (Qnatnump, obj); | |
| 685 else | |
| 686 ch = 'n'; | |
| 687 } | |
| 688 } | |
| 689 #endif | |
| 690 if (INTP (obj)) | |
| 691 { | |
| 692 if (strchr (unsigned_int_converters, ch)) | |
| 693 { | |
| 694 #ifdef HAVE_BIGNUM | |
| 695 if (XINT (obj) < 0) | |
| 696 dead_wrong_type_argument (Qnatnump, obj); | |
| 697 #endif | |
| 698 arg.ul = (unsigned long) XUINT (obj); | |
| 699 } | |
| 700 else | |
| 701 arg.l = XINT (obj); | |
| 702 } | |
| 428 | 703 } |
| 704 } | |
| 705 | |
| 706 if (ch == 'c') | |
| 707 { | |
| 867 | 708 Ichar a; |
| 428 | 709 Bytecount charlen; |
| 867 | 710 Ibyte charbuf[MAX_ICHAR_LEN]; |
| 428 | 711 |
| 867 | 712 a = (Ichar) arg.l; |
| 428 | 713 |
| 867 | 714 if (!valid_ichar_p (a)) |
| 2267 | 715 { |
| 716 /* WARNING! This MUST be big enough for the sprintf below */ | |
| 2272 | 717 CIbyte msg[60]; |
| 718 sprintf (msg, "invalid character value %d to %%c spec", | |
| 2267 | 719 a); |
|
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Ben Wing <ben@xemacs.org>
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diff
changeset
|
720 syntax_error (msg, Qunbound); |
| 2267 | 721 } |
| 428 | 722 |
| 867 | 723 charlen = set_itext_ichar (charbuf, a); |
| 771 | 724 doprnt_2 (stream, charbuf, charlen, spec->minwidth, |
| 428 | 725 -1, spec->minus_flag, spec->zero_flag); |
| 726 } | |
| 1983 | 727 #if defined(HAVE_BIGNUM) || defined(HAVE_RATIO) |
| 728 else if (strchr (bignum_converters, ch)) | |
| 729 { | |
|
4329
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|
730 int base = 16; |
|
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|
731 |
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|
732 if (ch == 'n') |
|
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|
733 base = 10; |
|
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734 else if (ch == 'p') |
|
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735 base = 8; |
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|
736 else if (ch == '\337') |
|
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737 base = 2; |
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|
738 |
| 1983 | 739 #ifdef HAVE_BIGNUM |
| 740 if (BIGNUMP (arg.obj)) | |
| 741 { | |
| 1995 | 742 Ibyte *text_to_print = |
| 743 (Ibyte *) bignum_to_string (XBIGNUM_DATA (arg.obj), | |
|
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|
744 base); |
| 1995 | 745 doprnt_2 (stream, text_to_print, |
| 746 strlen ((const char *) text_to_print), | |
| 1983 | 747 spec->minwidth, -1, spec->minus_flag, |
| 748 spec->zero_flag); | |
|
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Rename xfree(FOO, TYPE) -> xfree(FOO)
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parents:
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|
749 xfree (text_to_print); |
| 1983 | 750 } |
| 751 #endif | |
| 752 #ifdef HAVE_RATIO | |
| 753 if (RATIOP (arg.obj)) | |
| 754 { | |
| 1995 | 755 Ibyte *text_to_print = |
|
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|
756 (Ibyte *) ratio_to_string (XRATIO_DATA (arg.obj), base); |
| 1995 | 757 doprnt_2 (stream, text_to_print, |
| 758 strlen ((const char *) text_to_print), | |
| 1983 | 759 spec->minwidth, -1, spec->minus_flag, |
| 760 spec->zero_flag); | |
|
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parents:
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|
761 xfree (text_to_print); |
| 1983 | 762 } |
| 763 #endif | |
| 764 } | |
| 765 #endif /* HAVE_BIGNUM || HAVE_RATIO */ | |
| 766 #ifdef HAVE_BIGFLOAT | |
| 767 else if (strchr (bigfloat_converters, ch)) | |
| 768 { | |
| 1995 | 769 Ibyte *text_to_print = |
| 770 (Ibyte *) bigfloat_to_string (XBIGFLOAT_DATA (arg.obj), 10); | |
| 771 doprnt_2 (stream, text_to_print, | |
| 772 strlen ((const char *) text_to_print), | |
| 1983 | 773 spec->minwidth, -1, spec->minus_flag, spec->zero_flag); |
|
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parents:
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|
774 xfree (text_to_print); |
| 1983 | 775 } |
| 776 #endif /* HAVE_BIGFLOAT */ | |
|
4329
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|
777 else if (ch == 'b') |
|
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Aidan Kehoe <kehoea@parhasard.net>
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|
778 { |
|
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|
779 Ascbyte *text_to_print = alloca_array (char, SIZEOF_LONG * 8 + 1); |
|
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|
780 |
|
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|
781 ulong_to_bit_string (text_to_print, arg.ul); |
|
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782 doprnt_2 (stream, (Ibyte *)text_to_print, |
|
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|
783 qxestrlen ((Ibyte *)text_to_print), |
|
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|
784 spec->minwidth, -1, spec->minus_flag, spec->zero_flag); |
|
d9eb5ea14f65
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|
785 } |
| 428 | 786 else |
| 787 { | |
| 4287 | 788 Ascbyte *text_to_print; |
| 3706 | 789 Ascbyte constructed_spec[100]; |
| 790 Ascbyte *p = constructed_spec; | |
| 4287 | 791 int alloca_sz = 350; |
| 792 int min = spec->minwidth, prec = spec->precision; | |
| 793 | |
| 794 if (prec < 0) | |
| 795 prec = 0; | |
| 796 if (min < 0) | |
| 797 min = 0; | |
| 798 | |
| 799 if (32+min+prec > alloca_sz) | |
| 800 alloca_sz = 32 + min + prec; | |
| 801 | |
| 802 text_to_print = alloca_array(char, alloca_sz); | |
| 428 | 803 |
| 448 | 804 /* Mostly reconstruct the spec and use sprintf() to |
| 428 | 805 format the string. */ |
| 806 | |
| 446 | 807 *p++ = '%'; |
| 808 if (spec->plus_flag) *p++ = '+'; | |
| 809 if (spec->space_flag) *p++ = ' '; | |
| 810 if (spec->number_flag) *p++ = '#'; | |
| 448 | 811 if (spec->minus_flag) *p++ = '-'; |
| 812 if (spec->zero_flag) *p++ = '0'; | |
| 446 | 813 |
| 448 | 814 if (spec->minwidth >= 0) |
| 577 | 815 { |
| 816 long_to_string (p, spec->minwidth); | |
| 817 p += strlen (p); | |
| 818 } | |
| 448 | 819 if (spec->precision >= 0) |
| 428 | 820 { |
| 446 | 821 *p++ = '.'; |
| 577 | 822 long_to_string (p, spec->precision); |
| 823 p += strlen (p); | |
| 428 | 824 } |
| 448 | 825 |
| 428 | 826 if (strchr (double_converters, ch)) |
| 442 | 827 { |
| 446 | 828 *p++ = ch; |
| 829 *p++ = '\0'; | |
| 442 | 830 sprintf (text_to_print, constructed_spec, arg.d); |
| 831 } | |
| 428 | 832 else |
| 833 { | |
| 448 | 834 *p++ = 'l'; /* Always use longs with sprintf() */ |
| 835 *p++ = ch; | |
| 836 *p++ = '\0'; | |
| 446 | 837 |
| 838 if (strchr (unsigned_int_converters, ch)) | |
| 839 sprintf (text_to_print, constructed_spec, arg.ul); | |
| 840 else | |
| 428 | 841 sprintf (text_to_print, constructed_spec, arg.l); |
| 842 } | |
| 843 | |
| 867 | 844 doprnt_2 (stream, (Ibyte *) text_to_print, |
| 448 | 845 strlen (text_to_print), 0, -1, 0, 0); |
| 428 | 846 } |
| 847 } | |
| 848 } | |
| 849 | |
| 771 | 850 unbind_to (count); |
| 428 | 851 return Lstream_byte_count (XLSTREAM (stream)) - init_byte_count; |
| 852 } | |
| 853 | |
| 771 | 854 /* Basic external entry point into string formatting. See |
| 855 emacs_doprnt_1(). | |
| 856 */ | |
| 857 | |
| 858 Bytecount | |
| 867 | 859 emacs_doprnt_va (Lisp_Object stream, const Ibyte *format_nonreloc, |
| 771 | 860 Bytecount format_length, Lisp_Object format_reloc, |
| 861 va_list vargs) | |
| 862 { | |
| 863 return emacs_doprnt_1 (stream, format_nonreloc, format_length, | |
| 864 format_reloc, 0, 0, vargs); | |
| 865 } | |
| 866 | |
| 867 /* Basic external entry point into string formatting. See | |
| 868 emacs_doprnt_1(). | |
| 869 */ | |
| 870 | |
| 871 Bytecount | |
| 867 | 872 emacs_doprnt (Lisp_Object stream, const Ibyte *format_nonreloc, |
| 771 | 873 Bytecount format_length, Lisp_Object format_reloc, |
| 874 int nargs, const Lisp_Object *largs, ...) | |
| 428 | 875 { |
| 876 va_list vargs; | |
| 877 Bytecount val; | |
| 878 va_start (vargs, largs); | |
| 771 | 879 val = emacs_doprnt_1 (stream, format_nonreloc, format_length, |
| 880 format_reloc, nargs, largs, vargs); | |
| 428 | 881 va_end (vargs); |
| 882 return val; | |
| 883 } | |
| 884 | |
| 771 | 885 /* Similar to `format' in that its arguments are Lisp objects rather than C |
| 886 objects. (For the versions that take C objects, see the | |
| 887 emacs_[v]sprintf... functions below.) Accepts the format string as | |
| 888 either a C string (FORMAT_NONRELOC, which *MUST NOT* come from Lisp | |
| 889 string data, unless GC is inhibited) or a Lisp string (FORMAT_RELOC). | |
| 890 Return resulting formatted string as a Lisp string. | |
| 428 | 891 |
| 771 | 892 All arguments are GCPRO'd, including FORMAT_RELOC; this makes it OK to |
| 893 pass newly created objects into this function (as often happens). | |
| 428 | 894 |
| 771 | 895 #### It shouldn't be necessary to specify the number of arguments. |
| 896 This would require some rewriting of the doprnt() functions, though. | |
| 897 */ | |
| 428 | 898 |
| 899 Lisp_Object | |
| 867 | 900 emacs_vsprintf_string_lisp (const CIbyte *format_nonreloc, |
| 771 | 901 Lisp_Object format_reloc, int nargs, |
| 902 const Lisp_Object *largs) | |
| 428 | 903 { |
| 771 | 904 Lisp_Object stream; |
| 428 | 905 Lisp_Object obj; |
| 771 | 906 struct gcpro gcpro1, gcpro2; |
| 907 GCPRO2 (largs[0], format_reloc); | |
| 908 gcpro1.nvars = nargs; | |
| 428 | 909 |
| 771 | 910 stream = make_resizing_buffer_output_stream (); |
| 867 | 911 emacs_doprnt (stream, (Ibyte *) format_nonreloc, format_nonreloc ? |
| 771 | 912 strlen (format_nonreloc) : 0, |
| 913 format_reloc, nargs, largs); | |
| 428 | 914 Lstream_flush (XLSTREAM (stream)); |
| 915 obj = make_string (resizing_buffer_stream_ptr (XLSTREAM (stream)), | |
| 916 Lstream_byte_count (XLSTREAM (stream))); | |
| 771 | 917 Lstream_delete (XLSTREAM (stream)); |
| 428 | 918 UNGCPRO; |
| 919 return obj; | |
| 920 } | |
| 921 | |
| 771 | 922 /* Like emacs_vsprintf_string_lisp() but accepts its extra args directly |
| 923 (using variable arguments), rather than as an array. */ | |
| 924 | |
| 428 | 925 Lisp_Object |
| 867 | 926 emacs_sprintf_string_lisp (const CIbyte *format_nonreloc, |
| 771 | 927 Lisp_Object format_reloc, int nargs, ...) |
| 428 | 928 { |
| 771 | 929 Lisp_Object *args = alloca_array (Lisp_Object, nargs); |
| 930 va_list va; | |
| 931 int i; | |
| 428 | 932 Lisp_Object obj; |
| 933 | |
| 771 | 934 va_start (va, nargs); |
| 935 for (i = 0; i < nargs; i++) | |
| 936 args[i] = va_arg (va, Lisp_Object); | |
| 937 va_end (va); | |
| 938 obj = emacs_vsprintf_string_lisp (format_nonreloc, format_reloc, nargs, | |
| 939 args); | |
| 428 | 940 return obj; |
| 941 } | |
| 942 | |
| 771 | 943 /* Like emacs_vsprintf_string_lisp() but returns a malloc()ed memory block. |
| 944 Return length out through LEN_OUT, if not null. */ | |
| 945 | |
| 867 | 946 Ibyte * |
| 947 emacs_vsprintf_malloc_lisp (const CIbyte *format_nonreloc, | |
| 771 | 948 Lisp_Object format_reloc, int nargs, |
| 949 const Lisp_Object *largs, Bytecount *len_out) | |
| 950 { | |
| 951 Lisp_Object stream; | |
| 867 | 952 Ibyte *retval; |
| 771 | 953 Bytecount len; |
| 954 struct gcpro gcpro1, gcpro2; | |
| 955 | |
| 956 GCPRO2 (largs[0], format_reloc); | |
| 957 gcpro1.nvars = nargs; | |
| 958 | |
| 959 stream = make_resizing_buffer_output_stream (); | |
| 867 | 960 emacs_doprnt (stream, (Ibyte *) format_nonreloc, format_nonreloc ? |
| 771 | 961 strlen (format_nonreloc) : 0, |
| 962 format_reloc, nargs, largs); | |
| 963 Lstream_flush (XLSTREAM (stream)); | |
| 964 len = Lstream_byte_count (XLSTREAM (stream)); | |
| 2367 | 965 retval = xnew_ibytes (len + 1); |
| 771 | 966 memcpy (retval, resizing_buffer_stream_ptr (XLSTREAM (stream)), len); |
| 967 retval[len] = '\0'; | |
| 968 Lstream_delete (XLSTREAM (stream)); | |
| 969 | |
| 970 if (len_out) | |
| 971 *len_out = len; | |
| 972 UNGCPRO; | |
| 973 return retval; | |
| 974 } | |
| 975 | |
| 976 /* Like emacs_sprintf_string_lisp() but returns a malloc()ed memory block. | |
| 977 Return length out through LEN_OUT, if not null. */ | |
| 978 | |
| 867 | 979 Ibyte * |
| 980 emacs_sprintf_malloc_lisp (Bytecount *len_out, const CIbyte *format_nonreloc, | |
| 771 | 981 Lisp_Object format_reloc, int nargs, ...) |
| 982 { | |
| 983 Lisp_Object *args = alloca_array (Lisp_Object, nargs); | |
| 984 va_list va; | |
| 985 int i; | |
| 867 | 986 Ibyte *retval; |
| 771 | 987 |
| 988 va_start (va, nargs); | |
| 989 for (i = 0; i < nargs; i++) | |
| 990 args[i] = va_arg (va, Lisp_Object); | |
| 991 va_end (va); | |
| 992 retval = emacs_vsprintf_malloc_lisp (format_nonreloc, format_reloc, nargs, | |
| 993 args, len_out); | |
| 994 return retval; | |
| 995 } | |
| 996 | |
| 997 /* vsprintf()-like replacement. Returns a Lisp string. Data | |
| 998 from Lisp strings is OK because we explicitly inhibit GC. */ | |
| 999 | |
| 428 | 1000 Lisp_Object |
| 867 | 1001 emacs_vsprintf_string (const CIbyte *format, va_list vargs) |
| 428 | 1002 { |
| 771 | 1003 Lisp_Object stream = make_resizing_buffer_output_stream (); |
| 428 | 1004 Lisp_Object obj; |
| 771 | 1005 int count = begin_gc_forbidden (); |
| 428 | 1006 |
| 867 | 1007 emacs_doprnt_va (stream, (Ibyte *) format, strlen (format), Qnil, |
| 771 | 1008 vargs); |
| 428 | 1009 Lstream_flush (XLSTREAM (stream)); |
| 1010 obj = make_string (resizing_buffer_stream_ptr (XLSTREAM (stream)), | |
| 1011 Lstream_byte_count (XLSTREAM (stream))); | |
| 1012 Lstream_delete (XLSTREAM (stream)); | |
| 771 | 1013 end_gc_forbidden (count); |
| 428 | 1014 return obj; |
| 1015 } | |
| 1016 | |
| 771 | 1017 /* sprintf()-like replacement. Returns a Lisp string. Data |
| 1018 from Lisp strings is OK because we explicitly inhibit GC. */ | |
| 1019 | |
| 428 | 1020 Lisp_Object |
| 867 | 1021 emacs_sprintf_string (const CIbyte *format, ...) |
| 771 | 1022 { |
| 1023 va_list vargs; | |
| 1024 Lisp_Object retval; | |
| 1025 | |
| 1026 va_start (vargs, format); | |
| 1027 retval = emacs_vsprintf_string (format, vargs); | |
| 1028 va_end (vargs); | |
| 1029 return retval; | |
| 1030 } | |
| 1031 | |
| 1032 /* vsprintf()-like replacement. Returns a malloc()ed memory block. Data | |
| 1033 from Lisp strings is OK because we explicitly inhibit GC. Return | |
| 1034 length out through LEN_OUT, if not null. */ | |
| 1035 | |
| 867 | 1036 Ibyte * |
| 1037 emacs_vsprintf_malloc (const CIbyte *format, va_list vargs, | |
| 771 | 1038 Bytecount *len_out) |
| 428 | 1039 { |
| 771 | 1040 int count = begin_gc_forbidden (); |
| 428 | 1041 Lisp_Object stream = make_resizing_buffer_output_stream (); |
| 867 | 1042 Ibyte *retval; |
| 771 | 1043 Bytecount len; |
| 1044 | |
| 867 | 1045 emacs_doprnt_va (stream, (Ibyte *) format, strlen (format), Qnil, |
| 771 | 1046 vargs); |
| 1047 Lstream_flush (XLSTREAM (stream)); | |
| 1048 len = Lstream_byte_count (XLSTREAM (stream)); | |
| 2367 | 1049 retval = xnew_ibytes (len + 1); |
| 771 | 1050 memcpy (retval, resizing_buffer_stream_ptr (XLSTREAM (stream)), len); |
| 1051 retval[len] = '\0'; | |
| 1052 end_gc_forbidden (count); | |
| 1053 Lstream_delete (XLSTREAM (stream)); | |
| 1054 | |
| 1055 if (len_out) | |
| 1056 *len_out = len; | |
| 1057 return retval; | |
| 1058 } | |
| 1059 | |
| 1060 /* sprintf()-like replacement. Returns a malloc()ed memory block. Data | |
| 1061 from Lisp strings is OK because we explicitly inhibit GC. Return length | |
| 1062 out through LEN_OUT, if not null. */ | |
| 428 | 1063 |
| 867 | 1064 Ibyte * |
| 1065 emacs_sprintf_malloc (Bytecount *len_out, const CIbyte *format, ...) | |
| 771 | 1066 { |
| 1067 va_list vargs; | |
| 867 | 1068 Ibyte *retval; |
| 771 | 1069 |
| 1070 va_start (vargs, format); | |
| 1071 retval = emacs_vsprintf_malloc (format, vargs, len_out); | |
| 428 | 1072 va_end (vargs); |
| 771 | 1073 return retval; |
| 1074 } | |
| 1075 | |
| 1076 /* vsprintf() replacement. Writes output into OUTPUT, which better | |
| 1077 have enough space for the output. Data from Lisp strings is OK | |
| 1078 because we explicitly inhibit GC. */ | |
| 1079 | |
| 1080 Bytecount | |
| 867 | 1081 emacs_vsprintf (Ibyte *output, const CIbyte *format, va_list vargs) |
| 771 | 1082 { |
| 1083 Bytecount retval; | |
| 1084 int count = begin_gc_forbidden (); | |
| 1085 Lisp_Object stream = make_resizing_buffer_output_stream (); | |
| 1086 Bytecount len; | |
| 428 | 1087 |
| 867 | 1088 retval = emacs_doprnt_va (stream, (Ibyte *) format, strlen (format), Qnil, |
| 771 | 1089 vargs); |
| 428 | 1090 Lstream_flush (XLSTREAM (stream)); |
| 771 | 1091 len = Lstream_byte_count (XLSTREAM (stream)); |
| 1092 memcpy (output, resizing_buffer_stream_ptr (XLSTREAM (stream)), len); | |
| 1093 output[len] = '\0'; | |
| 1094 end_gc_forbidden (count); | |
| 428 | 1095 Lstream_delete (XLSTREAM (stream)); |
| 771 | 1096 |
| 1097 return retval; | |
| 428 | 1098 } |
| 771 | 1099 |
| 1100 /* sprintf() replacement. Writes output into OUTPUT, which better | |
| 1101 have enough space for the output. Data from Lisp strings is OK | |
| 1102 because we explicitly inhibit GC. */ | |
| 1103 | |
| 1104 Bytecount | |
| 867 | 1105 emacs_sprintf (Ibyte *output, const CIbyte *format, ...) |
| 771 | 1106 { |
| 1107 va_list vargs; | |
| 1108 Bytecount retval; | |
| 1109 | |
| 1110 va_start (vargs, format); | |
| 1111 retval = emacs_vsprintf (output, format, vargs); | |
| 1112 va_end (vargs); | |
| 1113 return retval; | |
| 1114 } |