1 /* Formatted output to strings.
2 Copyright (C) 1999-2000, 2002-2003 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 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
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License along
15 with this program; if not, write to the Free Software Foundation,
16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
23 #include "printf-parse.h"
25 /* Get size_t, NULL. */
29 #if HAVE_STDINT_H_WITH_UINTMAX
32 #if HAVE_INTTYPES_H_WITH_UINTMAX
33 # include <inttypes.h>
36 /* malloc(), realloc(), free(). */
43 printf_parse (const char *format, char_directives *d, arguments *a)
45 const char *cp = format; /* pointer into format */
46 int arg_posn = 0; /* number of regular arguments consumed */
47 unsigned int d_allocated; /* allocated elements of d->dir */
48 unsigned int a_allocated; /* allocated elements of a->arg */
49 unsigned int max_width_length = 0;
50 unsigned int max_precision_length = 0;
54 d->dir = malloc (d_allocated * sizeof (char_directive));
63 #define REGISTER_ARG(_index_,_type_) \
65 unsigned int n = (_index_); \
66 if (n >= a_allocated) \
69 a_allocated = 2 * a_allocated; \
70 if (a_allocated <= n) \
71 a_allocated = n + 1; \
73 ? realloc (a->arg, a_allocated * sizeof (argument)) \
74 : malloc (a_allocated * sizeof (argument))); \
76 /* Out of memory. */ \
80 while (a->count <= n) \
81 a->arg[a->count++].type = TYPE_NONE; \
82 if (a->arg[n].type == TYPE_NONE) \
83 a->arg[n].type = (_type_); \
84 else if (a->arg[n].type != (_type_)) \
85 /* Ambiguous type for positional argument. */ \
95 char_directive *dp = &d->dir[d->count];/* pointer to next directive */
97 /* Initialize the next directive. */
98 dp->dir_start = cp - 1;
100 dp->width_start = NULL;
101 dp->width_end = NULL;
102 dp->width_arg_index = -1;
103 dp->precision_start = NULL;
104 dp->precision_end = NULL;
105 dp->precision_arg_index = -1;
108 /* Test for positional argument. */
109 if (*cp >= '0' && *cp <= '9')
113 for (np = cp; *np >= '0' && *np <= '9'; np++)
119 for (np = cp; *np >= '0' && *np <= '9'; np++)
120 n = 10 * n + (*np - '0');
122 /* Positional argument 0. */
129 /* Read the flags. */
134 dp->flags |= FLAG_GROUP;
139 dp->flags |= FLAG_LEFT;
144 dp->flags |= FLAG_SHOWSIGN;
149 dp->flags |= FLAG_SPACE;
154 dp->flags |= FLAG_ALT;
159 dp->flags |= FLAG_ZERO;
166 /* Parse the field width. */
169 dp->width_start = cp;
172 if (max_width_length < 1)
173 max_width_length = 1;
175 /* Test for positional argument. */
176 if (*cp >= '0' && *cp <= '9')
180 for (np = cp; *np >= '0' && *np <= '9'; np++)
186 for (np = cp; *np >= '0' && *np <= '9'; np++)
187 n = 10 * n + (*np - '0');
189 /* Positional argument 0. */
191 dp->width_arg_index = n - 1;
195 if (dp->width_arg_index < 0)
196 dp->width_arg_index = arg_posn++;
197 REGISTER_ARG (dp->width_arg_index, TYPE_INT);
199 else if (*cp >= '0' && *cp <= '9')
201 unsigned int width_length;
203 dp->width_start = cp;
204 for (; *cp >= '0' && *cp <= '9'; cp++)
207 width_length = dp->width_end - dp->width_start;
208 if (max_width_length < width_length)
209 max_width_length = width_length;
212 /* Parse the precision. */
218 dp->precision_start = cp - 1;
220 dp->precision_end = cp;
221 if (max_precision_length < 2)
222 max_precision_length = 2;
224 /* Test for positional argument. */
225 if (*cp >= '0' && *cp <= '9')
229 for (np = cp; *np >= '0' && *np <= '9'; np++)
235 for (np = cp; *np >= '0' && *np <= '9'; np++)
236 n = 10 * n + (*np - '0');
238 /* Positional argument 0. */
240 dp->precision_arg_index = n - 1;
244 if (dp->precision_arg_index < 0)
245 dp->precision_arg_index = arg_posn++;
246 REGISTER_ARG (dp->precision_arg_index, TYPE_INT);
250 unsigned int precision_length;
252 dp->precision_start = cp - 1;
253 for (; *cp >= '0' && *cp <= '9'; cp++)
255 dp->precision_end = cp;
256 precision_length = dp->precision_end - dp->precision_start;
257 if (max_precision_length < precision_length)
258 max_precision_length = precision_length;
265 /* Parse argument type/size specifiers. */
273 flags |= (1 << (flags & 1));
289 if (sizeof (intmax_t) > sizeof (long))
291 /* intmax_t = long long */
294 else if (sizeof (intmax_t) > sizeof (int))
296 /* intmax_t = long */
302 else if (*cp == 'z' || *cp == 'Z')
304 /* 'z' is standardized in ISO C 99, but glibc uses 'Z'
305 because the warning facility in gcc-2.95.2 understands
306 only 'Z' (see gcc-2.95.2/gcc/c-common.c:1784). */
307 if (sizeof (size_t) > sizeof (long))
309 /* size_t = long long */
312 else if (sizeof (size_t) > sizeof (int))
321 if (sizeof (ptrdiff_t) > sizeof (long))
323 /* ptrdiff_t = long long */
326 else if (sizeof (ptrdiff_t) > sizeof (int))
328 /* ptrdiff_t = long */
337 /* Read the conversion character. */
342 #ifdef HAVE_LONG_LONG
343 if (flags >= 16 || (flags & 4))
344 type = TYPE_LONGLONGINT;
356 case 'o': case 'u': case 'x': case 'X':
357 #ifdef HAVE_LONG_LONG
358 if (flags >= 16 || (flags & 4))
359 type = TYPE_ULONGLONGINT;
363 type = TYPE_ULONGINT;
371 case 'f': case 'F': case 'e': case 'E': case 'g': case 'G':
373 #ifdef HAVE_LONG_DOUBLE
374 if (flags >= 16 || (flags & 4))
375 type = TYPE_LONGDOUBLE;
383 type = TYPE_WIDE_CHAR;
392 type = TYPE_WIDE_CHAR;
399 type = TYPE_WIDE_STRING;
408 type = TYPE_WIDE_STRING;
416 #ifdef HAVE_LONG_LONG
417 if (flags >= 16 || (flags & 4))
418 type = TYPE_COUNT_LONGLONGINT_POINTER;
422 type = TYPE_COUNT_LONGINT_POINTER;
424 type = TYPE_COUNT_SCHAR_POINTER;
426 type = TYPE_COUNT_SHORT_POINTER;
428 type = TYPE_COUNT_INT_POINTER;
434 /* Unknown conversion character. */
439 if (type != TYPE_NONE)
441 dp->arg_index = arg_index;
442 if (dp->arg_index < 0)
443 dp->arg_index = arg_posn++;
444 REGISTER_ARG (dp->arg_index, type);
451 if (d->count >= d_allocated)
453 char_directive *memory;
455 d_allocated = 2 * d_allocated;
456 memory = realloc (d->dir, d_allocated * sizeof (char_directive));
464 d->dir[d->count].dir_start = cp;
466 d->max_width_length = max_width_length;
467 d->max_precision_length = max_precision_length;