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glibc/locale/programs/ld-messages.c

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/* Copyright (C) 1995-1999,2000,2001,2002,2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.org>, 1995.
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, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <langinfo.h>
#include <sys/types.h>
#include <regex.h>
#include <string.h>
#include <sys/uio.h>
#include <assert.h>
#include "localedef.h"
#include "linereader.h"
#include "localeinfo.h"
#include "locfile.h"
/* The real definition of the struct for the LC_MESSAGES locale. */
struct locale_messages_t
{
const char *yesexpr;
const char *noexpr;
const char *yesstr;
const char *nostr;
};
static void
messages_startup (struct linereader *lr, struct localedef_t *locale,
int ignore_content)
{
if (!ignore_content)
locale->categories[LC_MESSAGES].messages =
(struct locale_messages_t *) xcalloc (1,
sizeof (struct locale_messages_t));
if (lr != NULL)
{
lr->translate_strings = 1;
lr->return_widestr = 0;
}
}
void
messages_finish (struct localedef_t *locale, const struct charmap_t *charmap)
{
struct locale_messages_t *messages
= locale->categories[LC_MESSAGES].messages;
int nothing = 0;
/* Now resolve copying and also handle completely missing definitions. */
if (messages == NULL)
{
/* First see whether we were supposed to copy. If yes, find the
actual definition. */
if (locale->copy_name[LC_MESSAGES] != 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_MESSAGES, from->copy_name[LC_MESSAGES],
from->repertoire_name, charmap);
while (from->categories[LC_MESSAGES].messages == NULL
&& from->copy_name[LC_MESSAGES] != NULL);
messages = locale->categories[LC_MESSAGES].messages
= from->categories[LC_MESSAGES].messages;
}
/* If there is still no definition issue an warning and create an
empty one. */
if (messages == NULL)
{
if (! be_quiet)
WITH_CUR_LOCALE (error (0, 0, _("\
No definition for %s category found"), "LC_MESSAGES"));
messages_startup (NULL, locale, 0);
messages = locale->categories[LC_MESSAGES].messages;
nothing = 1;
}
}
/* The fields YESSTR and NOSTR are optional. */
if (messages->yesstr == NULL)
messages->yesstr = "";
if (messages->nostr == NULL)
messages->nostr = "";
if (messages->yesexpr == NULL)
{
if (! be_quiet && ! nothing)
WITH_CUR_LOCALE (error (0, 0, _("%s: field `%s' undefined"),
"LC_MESSAGES", "yesexpr"));
messages->yesexpr = "^[yY]";
}
else if (messages->yesexpr[0] == '\0')
{
if (!be_quiet)
WITH_CUR_LOCALE (error (0, 0, _("\
%s: value for field `%s' must not be an empty string"),
"LC_MESSAGES", "yesexpr"));
}
else
{
int result;
regex_t re;
/* Test whether it are correct regular expressions. */
result = regcomp (&re, messages->yesexpr, REG_EXTENDED);
if (result != 0 && !be_quiet)
{
char errbuf[BUFSIZ];
(void) regerror (result, &re, errbuf, BUFSIZ);
WITH_CUR_LOCALE (error (0, 0, _("\
%s: no correct regular expression for field `%s': %s"),
"LC_MESSAGES", "yesexpr", errbuf));
}
else if (result != 0)
regfree (&re);
}
if (messages->noexpr == NULL)
{
if (! be_quiet && ! nothing)
WITH_CUR_LOCALE (error (0, 0, _("%s: field `%s' undefined"),
"LC_MESSAGES", "noexpr"));
messages->noexpr = "^[nN]";
}
else if (messages->noexpr[0] == '\0')
{
if (!be_quiet)
WITH_CUR_LOCALE (error (0, 0, _("\
%s: value for field `%s' must not be an empty string"),
"LC_MESSAGES", "noexpr"));
}
else
{
int result;
regex_t re;
/* Test whether it are correct regular expressions. */
result = regcomp (&re, messages->noexpr, REG_EXTENDED);
if (result != 0 && !be_quiet)
{
char errbuf[BUFSIZ];
(void) regerror (result, &re, errbuf, BUFSIZ);
WITH_CUR_LOCALE (error (0, 0, _("\
%s: no correct regular expression for field `%s': %s"),
"LC_MESSAGES", "noexpr", errbuf));
}
else if (result != 0)
regfree (&re);
}
}
void
messages_output (struct localedef_t *locale, const struct charmap_t *charmap,
const char *output_path)
{
struct locale_messages_t *messages
= locale->categories[LC_MESSAGES].messages;
struct iovec iov[2 + _NL_ITEM_INDEX (_NL_NUM_LC_MESSAGES)];
struct locale_file data;
uint32_t idx[_NL_ITEM_INDEX (_NL_NUM_LC_MESSAGES)];
size_t cnt = 0;
data.magic = LIMAGIC (LC_MESSAGES);
data.n = _NL_ITEM_INDEX (_NL_NUM_LC_MESSAGES);
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 = (char *) messages->yesexpr;
iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
++cnt;
idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
iov[cnt].iov_base = (char *) messages->noexpr;
iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
++cnt;
idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
iov[cnt].iov_base = (char *) messages->yesstr;
iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
++cnt;
idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
iov[cnt].iov_base = (char *) messages->nostr;
iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
++cnt;
idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
iov[cnt].iov_base = (char *) charmap->code_set_name;
iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
assert (cnt + 1 == 2 + _NL_ITEM_INDEX (_NL_NUM_LC_MESSAGES));
write_locale_data (output_path, LC_MESSAGES, "LC_MESSAGES",
2 + _NL_ITEM_INDEX (_NL_NUM_LC_MESSAGES), iov);
}
/* The parser for the LC_MESSAGES section of the locale definition. */
void
messages_read (struct linereader *ldfile, struct localedef_t *result,
const struct charmap_t *charmap, const char *repertoire_name,
int ignore_content)
{
struct repertoire_t *repertoire = NULL;
struct locale_messages_t *messages;
struct token *now;
enum token_t nowtok;
/* Get the repertoire we have to use. */
if (repertoire_name != NULL)
repertoire = repertoire_read (repertoire_name);
/* The rest of the line containing `LC_MESSAGES' 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_messages,
LC_MESSAGES, "LC_MESSAGES", ignore_content);
return;
}
/* Prepare the data structures. */
messages_startup (ldfile, result, ignore_content);
messages = result->categories[LC_MESSAGES].messages;
while (1)
{
struct token *arg;
/* Of course we don't proceed beyond the end of file. */
if (nowtok == tok_eof)
break;
/* Ignore empty lines. */
if (nowtok == tok_eol)
{
now = lr_token (ldfile, charmap, result, NULL, verbose);
nowtok = now->tok;
continue;
}
switch (nowtok)
{
#define STR_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; \
} \
\
if (messages->cat != NULL) \
{ \
lr_error (ldfile, _("\
%s: field `%s' declared more than once"), "LC_MESSAGES", #cat); \
lr_ignore_rest (ldfile, 0); \
break; \
} \
now = lr_token (ldfile, charmap, result, repertoire, verbose); \
if (now->tok != tok_string) \
goto syntax_error; \
else if (!ignore_content && now->val.str.startmb == NULL) \
{ \
lr_error (ldfile, _("\
%s: unknown character in field `%s'"), "LC_MESSAGES", #cat); \
messages->cat = ""; \
} \
else if (!ignore_content) \
messages->cat = now->val.str.startmb; \
break
STR_ELEM (yesexpr);
STR_ELEM (noexpr);
STR_ELEM (yesstr);
STR_ELEM (nostr);
case tok_end:
/* Next we assume `LC_MESSAGES'. */
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_MESSAGES");
else if (arg->tok != tok_lc_messages)
lr_error (ldfile, _("\
%1$s: definition does not end with `END %1$s'"), "LC_MESSAGES");
lr_ignore_rest (ldfile, arg->tok == tok_lc_messages);
return;
default:
syntax_error:
SYNTAX_ERROR (_("%s: syntax error"), "LC_MESSAGES");
}
/* 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_MESSAGES");
}
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