1 /* Formatted output to strings.
2 Copyright (C) 1999-2000, 2002-2003, 2006 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify it
5 under the terms of the GNU Library General Public License as published
6 by the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
23 # include "wprintf-parse.h"
25 # include "printf-parse.h"
28 /* Get size_t, NULL. */
32 #if HAVE_STDINT_H_WITH_UINTMAX
35 #if HAVE_INTTYPES_H_WITH_UINTMAX
36 # include <inttypes.h>
39 /* malloc(), realloc(), free(). */
42 /* Checked size_t computations. */
46 # define PRINTF_PARSE wprintf_parse
47 # define CHAR_T wchar_t
48 # define DIRECTIVE wchar_t_directive
49 # define DIRECTIVES wchar_t_directives
51 # define PRINTF_PARSE printf_parse
53 # define DIRECTIVE char_directive
54 # define DIRECTIVES char_directives
61 PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
63 const CHAR_T *cp = format; /* pointer into format */
64 size_t arg_posn = 0; /* number of regular arguments consumed */
65 size_t d_allocated; /* allocated elements of d->dir */
66 size_t a_allocated; /* allocated elements of a->arg */
67 size_t max_width_length = 0;
68 size_t max_precision_length = 0;
72 d->dir = malloc (d_allocated * sizeof (DIRECTIVE));
81 #define REGISTER_ARG(_index_,_type_) \
83 size_t n = (_index_); \
84 if (n >= a_allocated) \
89 a_allocated = xtimes (a_allocated, 2); \
90 if (a_allocated <= n) \
91 a_allocated = xsum (n, 1); \
92 memory_size = xtimes (a_allocated, sizeof (argument)); \
93 if (size_overflow_p (memory_size)) \
94 /* Overflow, would lead to out of memory. */ \
97 ? realloc (a->arg, memory_size) \
98 : malloc (memory_size)); \
100 /* Out of memory. */ \
104 while (a->count <= n) \
105 a->arg[a->count++].type = TYPE_NONE; \
106 if (a->arg[n].type == TYPE_NONE) \
107 a->arg[n].type = (_type_); \
108 else if (a->arg[n].type != (_type_)) \
109 /* Ambiguous type for positional argument. */ \
118 size_t arg_index = ARG_NONE;
119 DIRECTIVE *dp = &d->dir[d->count];/* pointer to next directive */
121 /* Initialize the next directive. */
122 dp->dir_start = cp - 1;
124 dp->width_start = NULL;
125 dp->width_end = NULL;
126 dp->width_arg_index = ARG_NONE;
127 dp->precision_start = NULL;
128 dp->precision_end = NULL;
129 dp->precision_arg_index = ARG_NONE;
130 dp->arg_index = ARG_NONE;
132 /* Test for positional argument. */
133 if (*cp >= '0' && *cp <= '9')
137 for (np = cp; *np >= '0' && *np <= '9'; np++)
143 for (np = cp; *np >= '0' && *np <= '9'; np++)
144 n = xsum (xtimes (n, 10), *np - '0');
146 /* Positional argument 0. */
148 if (size_overflow_p (n))
149 /* n too large, would lead to out of memory later. */
156 /* Read the flags. */
161 dp->flags |= FLAG_GROUP;
166 dp->flags |= FLAG_LEFT;
171 dp->flags |= FLAG_SHOWSIGN;
176 dp->flags |= FLAG_SPACE;
181 dp->flags |= FLAG_ALT;
186 dp->flags |= FLAG_ZERO;
193 /* Parse the field width. */
196 dp->width_start = cp;
199 if (max_width_length < 1)
200 max_width_length = 1;
202 /* Test for positional argument. */
203 if (*cp >= '0' && *cp <= '9')
207 for (np = cp; *np >= '0' && *np <= '9'; np++)
213 for (np = cp; *np >= '0' && *np <= '9'; np++)
214 n = xsum (xtimes (n, 10), *np - '0');
216 /* Positional argument 0. */
218 if (size_overflow_p (n))
219 /* n too large, would lead to out of memory later. */
221 dp->width_arg_index = n - 1;
225 if (dp->width_arg_index == ARG_NONE)
227 dp->width_arg_index = arg_posn++;
228 if (dp->width_arg_index == ARG_NONE)
229 /* arg_posn wrapped around. */
232 REGISTER_ARG (dp->width_arg_index, TYPE_INT);
234 else if (*cp >= '0' && *cp <= '9')
238 dp->width_start = cp;
239 for (; *cp >= '0' && *cp <= '9'; cp++)
242 width_length = dp->width_end - dp->width_start;
243 if (max_width_length < width_length)
244 max_width_length = width_length;
247 /* Parse the precision. */
253 dp->precision_start = cp - 1;
255 dp->precision_end = cp;
256 if (max_precision_length < 2)
257 max_precision_length = 2;
259 /* Test for positional argument. */
260 if (*cp >= '0' && *cp <= '9')
264 for (np = cp; *np >= '0' && *np <= '9'; np++)
270 for (np = cp; *np >= '0' && *np <= '9'; np++)
271 n = xsum (xtimes (n, 10), *np - '0');
273 /* Positional argument 0. */
275 if (size_overflow_p (n))
276 /* n too large, would lead to out of memory
279 dp->precision_arg_index = n - 1;
283 if (dp->precision_arg_index == ARG_NONE)
285 dp->precision_arg_index = arg_posn++;
286 if (dp->precision_arg_index == ARG_NONE)
287 /* arg_posn wrapped around. */
290 REGISTER_ARG (dp->precision_arg_index, TYPE_INT);
294 size_t precision_length;
296 dp->precision_start = cp - 1;
297 for (; *cp >= '0' && *cp <= '9'; cp++)
299 dp->precision_end = cp;
300 precision_length = dp->precision_end - dp->precision_start;
301 if (max_precision_length < precision_length)
302 max_precision_length = precision_length;
309 /* Parse argument type/size specifiers. */
317 flags |= (1 << (flags & 1));
333 if (sizeof (intmax_t) > sizeof (long))
335 /* intmax_t = long long */
338 else if (sizeof (intmax_t) > sizeof (int))
340 /* intmax_t = long */
346 else if (*cp == 'z' || *cp == 'Z')
348 /* 'z' is standardized in ISO C 99, but glibc uses 'Z'
349 because the warning facility in gcc-2.95.2 understands
350 only 'Z' (see gcc-2.95.2/gcc/c-common.c:1784). */
351 if (sizeof (size_t) > sizeof (long))
353 /* size_t = long long */
356 else if (sizeof (size_t) > sizeof (int))
365 if (sizeof (ptrdiff_t) > sizeof (long))
367 /* ptrdiff_t = long long */
370 else if (sizeof (ptrdiff_t) > sizeof (int))
372 /* ptrdiff_t = long */
381 /* Read the conversion character. */
386 #ifdef HAVE_LONG_LONG_INT
387 /* If 'long long' exists and is larger than 'long': */
388 if (flags >= 16 || (flags & 4))
389 type = TYPE_LONGLONGINT;
392 /* If 'long long' exists and is the same as 'long', we parse
393 "lld" into TYPE_LONGINT. */
403 case 'o': case 'u': case 'x': case 'X':
404 #ifdef HAVE_LONG_LONG_INT
405 /* If 'long long' exists and is larger than 'long': */
406 if (flags >= 16 || (flags & 4))
407 type = TYPE_ULONGLONGINT;
410 /* If 'unsigned long long' exists and is the same as
411 'unsigned long', we parse "llu" into TYPE_ULONGINT. */
413 type = TYPE_ULONGINT;
421 case 'f': case 'F': case 'e': case 'E': case 'g': case 'G':
423 #ifdef HAVE_LONG_DOUBLE
424 if (flags >= 16 || (flags & 4))
425 type = TYPE_LONGDOUBLE;
433 type = TYPE_WIDE_CHAR;
442 type = TYPE_WIDE_CHAR;
449 type = TYPE_WIDE_STRING;
458 type = TYPE_WIDE_STRING;
466 #ifdef HAVE_LONG_LONG_INT
467 /* If 'long long' exists and is larger than 'long': */
468 if (flags >= 16 || (flags & 4))
469 type = TYPE_COUNT_LONGLONGINT_POINTER;
472 /* If 'long long' exists and is the same as 'long', we parse
473 "lln" into TYPE_COUNT_LONGINT_POINTER. */
475 type = TYPE_COUNT_LONGINT_POINTER;
477 type = TYPE_COUNT_SCHAR_POINTER;
479 type = TYPE_COUNT_SHORT_POINTER;
481 type = TYPE_COUNT_INT_POINTER;
487 /* Unknown conversion character. */
492 if (type != TYPE_NONE)
494 dp->arg_index = arg_index;
495 if (dp->arg_index == ARG_NONE)
497 dp->arg_index = arg_posn++;
498 if (dp->arg_index == ARG_NONE)
499 /* arg_posn wrapped around. */
502 REGISTER_ARG (dp->arg_index, type);
509 if (d->count >= d_allocated)
514 d_allocated = xtimes (d_allocated, 2);
515 memory_size = xtimes (d_allocated, sizeof (DIRECTIVE));
516 if (size_overflow_p (memory_size))
517 /* Overflow, would lead to out of memory. */
519 memory = realloc (d->dir, memory_size);
527 d->dir[d->count].dir_start = cp;
529 d->max_width_length = max_width_length;
530 d->max_precision_length = max_precision_length;