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/* C format strings.
Copyright (C) 2001-2004, 2006-2007, 2009 Free Software Foundation, Inc.
Written by Bruno Haible <haible@clisp.cons.org>, 2001.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdbool.h>
#include <stdlib.h>
#include "format.h"
#include "c-ctype.h"
#include "xalloc.h"
#include "xvasprintf.h"
#include "gettext.h"
#define _(str) gettext (str)
#include "format-invalid.h"
#define INVALID_C99_MACRO(directive_number) \
xasprintf (_("In the directive number %u, the token after '<' is not the name of a format specifier macro. The valid macro names are listed in ISO C 99 section 7.8.1."), directive_number)
#define INVALID_ANGLE_BRACKET(directive_number) \
xasprintf (_("In the directive number %u, the token after '<' is not followed by '>'."), directive_number)
#define INVALID_IGNORED_ARGUMENT(referenced_arg, ignored_arg) \
xasprintf (_("The string refers to argument number %u but ignores argument number %u."), referenced_arg, ignored_arg)
/* Execute statement if memory allocation function returned NULL. */
#define IF_OOM(allocated_ptr, statement) /* nothing, since we use xalloc.h */
/* Specifies whether the system dependent segments in msgid and msgstr have
been processed. This means:
- If false, ISO C 99 <inttypes.h> directives are denoted with angle
brackets. If true, they have already been expanded, leading in
particular to %I64d directives on native Windows platforms.
- If false, the 'I' flag may be present in msgstr (also on platforms
other than glibc). If true, the 'I' directive may be present in msgstr
only on glibc >= 2.2 platforms. */
#define SYSDEP_SEGMENTS_PROCESSED false
/* Include the bulk of the C format string parsing code. */
#include "format-c-parse.h"
static void *
format_parse (const char *format, bool translated, bool objc_extensions,
char *fdi, char **invalid_reason)
{
struct spec result_buf;
struct spec *result;
result = format_parse_entrails (format, translated, objc_extensions, fdi, invalid_reason, &result_buf);
if (result != NULL)
{
/* Copy the result to a heap-allocated object. */
struct spec *safe_result = XMALLOC (struct spec);
*safe_result = *result;
result = safe_result;
}
return result;
}
static void *
format_c_parse (const char *format, bool translated, char *fdi,
char **invalid_reason)
{
return format_parse (format, translated, false, fdi, invalid_reason);
}
static void *
format_objc_parse (const char *format, bool translated, char *fdi,
char **invalid_reason)
{
return format_parse (format, translated, true, fdi, invalid_reason);
}
static void
format_free (void *descr)
{
struct spec *spec = (struct spec *) descr;
if (spec->unnumbered != NULL)
free (spec->unnumbered);
if (spec->sysdep_directives != NULL)
free (spec->sysdep_directives);
free (spec);
}
static bool
format_is_unlikely_intentional (void *descr)
{
struct spec *spec = (struct spec *) descr;
return spec->unlikely_intentional;
}
static int
format_get_number_of_directives (void *descr)
{
struct spec *spec = (struct spec *) descr;
return spec->directives;
}
static bool
format_check (void *msgid_descr, void *msgstr_descr, bool equality,
formatstring_error_logger_t error_logger,
const char *pretty_msgid, const char *pretty_msgstr)
{
struct spec *spec1 = (struct spec *) msgid_descr;
struct spec *spec2 = (struct spec *) msgstr_descr;
bool err = false;
unsigned int i;
/* Check the argument types are the same. */
if (equality
? spec1->unnumbered_arg_count != spec2->unnumbered_arg_count
: spec1->unnumbered_arg_count < spec2->unnumbered_arg_count)
{
if (error_logger)
error_logger (_("number of format specifications in '%s' and '%s' does not match"),
pretty_msgid, pretty_msgstr);
err = true;
}
else
for (i = 0; i < spec2->unnumbered_arg_count; i++)
if (spec1->unnumbered[i].type != spec2->unnumbered[i].type)
{
if (error_logger)
error_logger (_("format specifications in '%s' and '%s' for argument %u are not the same"),
pretty_msgid, pretty_msgstr, i + 1);
err = true;
}
return err;
}
struct formatstring_parser formatstring_c =
{
format_c_parse,
format_free,
format_get_number_of_directives,
format_is_unlikely_intentional,
format_check
};
struct formatstring_parser formatstring_objc =
{
format_objc_parse,
format_free,
format_get_number_of_directives,
format_is_unlikely_intentional,
format_check
};
void
get_sysdep_c_format_directives (const char *string, bool translated,
struct interval **intervalsp, size_t *lengthp)
{
/* Parse the format string with all possible extensions turned on. (The
caller has already verified that the format string is valid for the
particular language.) */
char *invalid_reason = NULL;
struct spec *descr =
(struct spec *)
format_parse (string, translated, true, NULL, &invalid_reason);
if (descr != NULL && descr->sysdep_directives_count > 0)
{
unsigned int n = descr->sysdep_directives_count;
struct interval *intervals = XNMALLOC (n, struct interval);
unsigned int i;
for (i = 0; i < n; i++)
{
intervals[i].startpos = descr->sysdep_directives[2 * i] - string;
intervals[i].endpos = descr->sysdep_directives[2 * i + 1] - string;
}
*intervalsp = intervals;
*lengthp = n;
}
else
{
*intervalsp = NULL;
*lengthp = 0;
}
if (descr != NULL)
format_free (descr);
else
free (invalid_reason);
}
#ifdef TEST
/* Test program: Print the argument list specification returned by
format_parse for strings read from standard input. */
#include <stdio.h>
static void
format_print (void *descr)
{
struct spec *spec = (struct spec *) descr;
unsigned int i;
if (spec == NULL)
{
printf ("INVALID");
return;
}
printf ("(");
for (i = 0; i < spec->unnumbered_arg_count; i++)
{
if (i > 0)
printf (" ");
if (spec->unnumbered[i].type & FAT_UNSIGNED)
printf ("[unsigned]");
switch (spec->unnumbered[i].type & FAT_SIZE_MASK)
{
case 0:
break;
case FAT_SIZE_SHORT:
printf ("[short]");
break;
case FAT_SIZE_CHAR:
printf ("[char]");
break;
case FAT_SIZE_LONG:
printf ("[long]");
break;
case FAT_SIZE_LONGLONG:
printf ("[long long]");
break;
case FAT_SIZE_8_T:
printf ("[int8_t]");
break;
case FAT_SIZE_16_T:
printf ("[int16_t]");
break;
case FAT_SIZE_32_T:
printf ("[int32_t]");
break;
case FAT_SIZE_64_T:
printf ("[int64_t]");
break;
case FAT_SIZE_LEAST8_T:
printf ("[int_least8_t]");
break;
case FAT_SIZE_LEAST16_T:
printf ("[int_least16_t]");
break;
case FAT_SIZE_LEAST32_T:
printf ("[int_least32_t]");
break;
case FAT_SIZE_LEAST64_T:
printf ("[int_least64_t]");
break;
case FAT_SIZE_FAST8_T:
printf ("[int_fast8_t]");
break;
case FAT_SIZE_FAST16_T:
printf ("[int_fast16_t]");
break;
case FAT_SIZE_FAST32_T:
printf ("[int_fast32_t]");
break;
case FAT_SIZE_FAST64_T:
printf ("[int_fast64_t]");
break;
case FAT_SIZE_INTMAX_T:
printf ("[intmax_t]");
break;
case FAT_SIZE_INTPTR_T:
printf ("[intptr_t]");
break;
case FAT_SIZE_SIZE_T:
printf ("[size_t]");
break;
case FAT_SIZE_PTRDIFF_T:
printf ("[ptrdiff_t]");
break;
default:
abort ();
}
switch (spec->unnumbered[i].type & ~(FAT_UNSIGNED | FAT_SIZE_MASK))
{
case FAT_INTEGER:
printf ("i");
break;
case FAT_DOUBLE:
printf ("f");
break;
case FAT_CHAR:
printf ("c");
break;
case FAT_STRING:
printf ("s");
break;
case FAT_OBJC_OBJECT:
printf ("@");
break;
case FAT_POINTER:
printf ("p");
break;
case FAT_COUNT_POINTER:
printf ("n");
break;
default:
abort ();
}
}
printf (")");
}
int
main ()
{
for (;;)
{
char *line = NULL;
size_t line_size = 0;
int line_len;
char *invalid_reason;
void *descr;
line_len = getline (&line, &line_size, stdin);
if (line_len < 0)
break;
if (line_len > 0 && line[line_len - 1] == '\n')
line[--line_len] = '\0';
invalid_reason = NULL;
descr = format_c_parse (line, false, NULL, &invalid_reason);
format_print (descr);
printf ("\n");
if (descr == NULL)
printf ("%s\n", invalid_reason);
free (invalid_reason);
free (line);
}
return 0;
}
/*
* For Emacs M-x compile
* Local Variables:
* compile-command: "/bin/sh ../libtool --tag=CC --mode=link gcc -o a.out -static -O -g -Wall -I.. -I../gnulib-lib -I../intl -DHAVE_CONFIG_H -DTEST format-c.c ../gnulib-lib/libgettextlib.la"
* End:
*/
#endif /* TEST */
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