glibc/locale/programs/ld-measurement.c

256 lines
7.3 KiB
C

/* Copyright (C) 1998-2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
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; version 2 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 <error.h>
#include <langinfo.h>
#include <string.h>
#include <sys/uio.h>
#include <assert.h>
#include "localedef.h"
#include "localeinfo.h"
#include "locfile.h"
/* The real definition of the struct for the LC_MEASUREMENT locale. */
struct locale_measurement_t
{
unsigned char measurement;
};
static void
measurement_startup (struct linereader *lr, struct localedef_t *locale,
int ignore_content)
{
if (!ignore_content)
locale->categories[LC_MEASUREMENT].measurement =
(struct locale_measurement_t *)
xcalloc (1, sizeof (struct locale_measurement_t));
if (lr != NULL)
{
lr->translate_strings = 1;
lr->return_widestr = 0;
}
}
void
measurement_finish (struct localedef_t *locale,
const struct charmap_t *charmap)
{
struct locale_measurement_t *measurement =
locale->categories[LC_MEASUREMENT].measurement;
int nothing = 0;
/* Now resolve copying and also handle completely missing definitions. */
if (measurement == NULL)
{
/* First see whether we were supposed to copy. If yes, find the
actual definition. */
if (locale->copy_name[LC_MEASUREMENT] != NULL)
{
/* Find the copying locale. This has to happen transitively since
the locale we are copying from might also copying another one. */
struct localedef_t *from = locale;
do
from = find_locale (LC_MEASUREMENT,
from->copy_name[LC_MEASUREMENT],
from->repertoire_name, charmap);
while (from->categories[LC_MEASUREMENT].measurement == NULL
&& from->copy_name[LC_MEASUREMENT] != NULL);
measurement = locale->categories[LC_MEASUREMENT].measurement
= from->categories[LC_MEASUREMENT].measurement;
}
/* If there is still no definition issue an warning and create an
empty one. */
if (measurement == NULL)
{
if (! be_quiet)
WITH_CUR_LOCALE (error (0, 0, _("\
No definition for %s category found"), "LC_MEASUREMENT"));
measurement_startup (NULL, locale, 0);
measurement = locale->categories[LC_MEASUREMENT].measurement;
nothing = 1;
}
}
if (measurement->measurement == 0)
{
if (! nothing)
WITH_CUR_LOCALE (error (0, 0, _("%s: field `%s' not defined"),
"LC_MEASUREMENT", "measurement"));
/* Use as the default value the value of the i18n locale. */
measurement->measurement = 1;
}
else
{
if (measurement->measurement > 3)
WITH_CUR_LOCALE (error (0, 0, _("%s: invalid value for field `%s'"),
"LC_MEASUREMENT", "measurement"));
}
}
void
measurement_output (struct localedef_t *locale,
const struct charmap_t *charmap, const char *output_path)
{
struct locale_measurement_t *measurement =
locale->categories[LC_MEASUREMENT].measurement;
struct iovec iov[2 + _NL_ITEM_INDEX (_NL_NUM_LC_MEASUREMENT)];
struct locale_file data;
uint32_t idx[_NL_ITEM_INDEX (_NL_NUM_LC_MEASUREMENT)];
size_t cnt = 0;
data.magic = LIMAGIC (LC_MEASUREMENT);
data.n = _NL_ITEM_INDEX (_NL_NUM_LC_MEASUREMENT);
iov[cnt].iov_base = (void *) &data;
iov[cnt].iov_len = sizeof (data);
++cnt;
iov[cnt].iov_base = (void *) idx;
iov[cnt].iov_len = sizeof (idx);
++cnt;
idx[cnt - 2] = iov[0].iov_len + iov[1].iov_len;
iov[cnt].iov_base = &measurement->measurement;
iov[cnt].iov_len = 1;
++cnt;
idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
iov[cnt].iov_base = (void *) charmap->code_set_name;
iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
++cnt;
assert (cnt == 2 + _NL_ITEM_INDEX (_NL_NUM_LC_MEASUREMENT));
write_locale_data (output_path, LC_MEASUREMENT, "LC_MEASUREMENT",
2 + _NL_ITEM_INDEX (_NL_NUM_LC_MEASUREMENT), iov);
}
/* The parser for the LC_MEASUREMENT section of the locale definition. */
void
measurement_read (struct linereader *ldfile, struct localedef_t *result,
const struct charmap_t *charmap, const char *repertoire_name,
int ignore_content)
{
struct locale_measurement_t *measurement;
struct token *now;
struct token *arg;
enum token_t nowtok;
/* The rest of the line containing `LC_MEASUREMENT' must be free. */
lr_ignore_rest (ldfile, 1);
do
{
now = lr_token (ldfile, charmap, result, NULL, verbose);
nowtok = now->tok;
}
while (nowtok == tok_eol);
/* If we see `copy' now we are almost done. */
if (nowtok == tok_copy)
{
handle_copy (ldfile, charmap, repertoire_name, result,
tok_lc_measurement, LC_MEASUREMENT, "LC_MEASUREMENT",
ignore_content);
return;
}
/* Prepare the data structures. */
measurement_startup (ldfile, result, ignore_content);
measurement = result->categories[LC_MEASUREMENT].measurement;
while (1)
{
/* Of course we don't proceed beyond the end of file. */
if (nowtok == tok_eof)
break;
/* Ingore empty lines. */
if (nowtok == tok_eol)
{
now = lr_token (ldfile, charmap, result, NULL, verbose);
nowtok = now->tok;
continue;
}
switch (nowtok)
{
#define INT_ELEM(cat) \
case tok_##cat: \
/* Ignore the rest of the line if we don't need the input of \
this line. */ \
if (ignore_content) \
{ \
lr_ignore_rest (ldfile, 0); \
break; \
} \
\
arg = lr_token (ldfile, charmap, result, NULL, verbose); \
if (arg->tok != tok_number) \
goto err_label; \
else if (measurement->cat != 0) \
lr_error (ldfile, _("%s: field `%s' declared more than once"), \
"LC_MEASUREMENT", #cat); \
else if (!ignore_content) \
measurement->cat = arg->val.num; \
break
INT_ELEM (measurement);
case tok_end:
/* Next we assume `LC_MEASUREMENT'. */
arg = lr_token (ldfile, charmap, result, NULL, verbose);
if (arg->tok == tok_eof)
break;
if (arg->tok == tok_eol)
lr_error (ldfile, _("%s: incomplete `END' line"),
"LC_MEASUREMENT");
else if (arg->tok != tok_lc_measurement)
lr_error (ldfile, _("\
%1$s: definition does not end with `END %1$s'"), "LC_MEASUREMENT");
lr_ignore_rest (ldfile, arg->tok == tok_lc_measurement);
return;
default:
err_label:
SYNTAX_ERROR (_("%s: syntax error"), "LC_MEASUREMENT");
}
/* Prepare for the next round. */
now = lr_token (ldfile, charmap, result, NULL, verbose);
nowtok = now->tok;
}
/* When we come here we reached the end of the file. */
lr_error (ldfile, _("%s: premature end of file"),
"LC_MEASUREMENT");
}