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86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
/* Parse printf format string.
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Copyright (C) 1999, 2002-2003, 2005, 2007, 2010-2011, 2015-2016 Free
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Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef _PRINTF_PARSE_H
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#define _PRINTF_PARSE_H
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#if HAVE_FEATURES_H
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# include <features.h> /* for __GLIBC__, __UCLIBC__ */
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#endif
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#include "printf-args.h"
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/* Flags */
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#define FLAG_GROUP 1 /* ' flag */
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#define FLAG_LEFT 2 /* - flag */
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#define FLAG_SHOWSIGN 4 /* + flag */
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#define FLAG_SPACE 8 /* space flag */
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#define FLAG_ALT 16 /* # flag */
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#define FLAG_ZERO 32
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#if __GLIBC__ >= 2 && !defined __UCLIBC__
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# define FLAG_LOCALIZED 64 /* I flag, uses localized digits */
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#endif
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/* arg_index value indicating that no argument is consumed. */
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#define ARG_NONE (~(size_t)0)
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/* Number of directly allocated directives (no malloc() needed). */
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#define N_DIRECT_ALLOC_DIRECTIVES 7
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/* A parsed directive. */
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typedef struct
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{
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const char* dir_start;
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const char* dir_end;
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int flags;
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const char* width_start;
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const char* width_end;
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size_t width_arg_index;
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const char* precision_start;
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const char* precision_end;
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size_t precision_arg_index;
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char conversion; /* d i o u x X f e E g G c s p n U % but not C S */
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size_t arg_index;
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}
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char_directive;
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/* A parsed format string. */
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typedef struct
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{
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size_t count;
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char_directive *dir;
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size_t max_width_length;
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size_t max_precision_length;
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char_directive direct_alloc_dir[N_DIRECT_ALLOC_DIRECTIVES];
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}
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char_directives;
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/* Parses the format string. Fills in the number N of directives, and fills
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in directives[0], ..., directives[N-1], and sets directives[N].dir_start
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to the end of the format string. Also fills in the arg_type fields of the
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arguments and the needed count of arguments. */
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#ifdef STATIC
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STATIC
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#else
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extern
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#endif
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int printf_parse (const char *format, char_directives *d, arguments *a);
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#endif /* _PRINTF_PARSE_H */
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