diff options
Diffstat (limited to 'intl/cat-compat.c')
| -rw-r--r-- | intl/cat-compat.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/intl/cat-compat.c b/intl/cat-compat.c new file mode 100644 index 00000000000..867d901b8ff --- /dev/null +++ b/intl/cat-compat.c @@ -0,0 +1,262 @@ +/* Compatibility code for gettext-using-catgets interface. + Copyright (C) 1995, 1997 Free Software Foundation, Inc. + + 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 2, 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 <stdio.h> + +#ifdef STDC_HEADERS +# include <stdlib.h> +# include <string.h> +#else +char *getenv (); +# ifdef HAVE_MALLOC_H +# include <malloc.h> +# endif +#endif + +#ifdef HAVE_NL_TYPES_H +# include <nl_types.h> +#endif + +#include "libgettext.h" + +/* @@ end of prolog @@ */ + +/* XPG3 defines the result of `setlocale (category, NULL)' as: + ``Directs `setlocale()' to query `category' and return the current + setting of `local'.'' + However it does not specify the exact format. And even worse: POSIX + defines this not at all. So we can use this feature only on selected + system (e.g. those using GNU C Library). */ +#ifdef _LIBC +# define HAVE_LOCALE_NULL +#endif + +/* The catalog descriptor. */ +static nl_catd catalog = (nl_catd) -1; + +/* Name of the default catalog. */ +static const char default_catalog_name[] = "messages"; + +/* Name of currently used catalog. */ +static const char *catalog_name = default_catalog_name; + +/* Get ID for given string. If not found return -1. */ +static int msg_to_cat_id PARAMS ((const char *msg)); + +/* Substitution for systems lacking this function in their C library. */ +#if !_LIBC && !HAVE_STPCPY +static char *stpcpy PARAMS ((char *dest, const char *src)); +#endif + + +/* Set currently used domain/catalog. */ +char * +textdomain (domainname) + const char *domainname; +{ + nl_catd new_catalog; + char *new_name; + size_t new_name_len; + char *lang; + +#if defined HAVE_SETLOCALE && defined HAVE_LC_MESSAGES \ + && defined HAVE_LOCALE_NULL + lang = setlocale (LC_MESSAGES, NULL); +#else + lang = getenv ("LC_ALL"); + if (lang == NULL || lang[0] == '\0') + { + lang = getenv ("LC_MESSAGES"); + if (lang == NULL || lang[0] == '\0') + lang = getenv ("LANG"); + } +#endif + if (lang == NULL || lang[0] == '\0') + lang = "C"; + + /* See whether name of currently used domain is asked. */ + if (domainname == NULL) + return (char *) catalog_name; + + if (domainname[0] == '\0') + domainname = default_catalog_name; + + /* Compute length of added path element. */ + new_name_len = sizeof (LOCALEDIR) - 1 + 1 + strlen (lang) + + sizeof ("/LC_MESSAGES/") - 1 + sizeof (PACKAGE) - 1 + + sizeof (".cat"); + + new_name = (char *) malloc (new_name_len); + if (new_name == NULL) + return NULL; + + strcpy (new_name, PACKAGE); + new_catalog = catopen (new_name, 0); + + if (new_catalog == (nl_catd) -1) + { + /* NLSPATH search didn't work, try absolute path */ + sprintf (new_name, "%s/%s/LC_MESSAGES/%s.cat", LOCALEDIR, lang, + PACKAGE); + new_catalog = catopen (new_name, 0); + + if (new_catalog == (nl_catd) -1) + { + free (new_name); + return (char *) catalog_name; + } + } + + /* Close old catalog. */ + if (catalog != (nl_catd) -1) + catclose (catalog); + if (catalog_name != default_catalog_name) + free ((char *) catalog_name); + + catalog = new_catalog; + catalog_name = new_name; + + return (char *) catalog_name; +} + +char * +bindtextdomain (domainname, dirname) + const char *domainname; + const char *dirname; +{ +#if HAVE_SETENV || HAVE_PUTENV + char *old_val, *new_val, *cp; + size_t new_val_len; + + /* This does not make much sense here but to be compatible do it. */ + if (domainname == NULL) + return NULL; + + /* Compute length of added path element. If we use setenv we don't need + the first byts for NLSPATH=, but why complicate the code for this + peanuts. */ + new_val_len = sizeof ("NLSPATH=") - 1 + strlen (dirname) + + sizeof ("/%L/LC_MESSAGES/%N.cat"); + + old_val = getenv ("NLSPATH"); + if (old_val == NULL || old_val[0] == '\0') + { + old_val = NULL; + new_val_len += 1 + sizeof (LOCALEDIR) - 1 + + sizeof ("/%L/LC_MESSAGES/%N.cat"); + } + else + new_val_len += strlen (old_val); + + new_val = (char *) malloc (new_val_len); + if (new_val == NULL) + return NULL; + +# if HAVE_SETENV + cp = new_val; +# else + cp = stpcpy (new_val, "NLSPATH="); +# endif + + cp = stpcpy (cp, dirname); + cp = stpcpy (cp, "/%L/LC_MESSAGES/%N.cat:"); + + if (old_val == NULL) + { +# if __STDC__ + stpcpy (cp, LOCALEDIR "/%L/LC_MESSAGES/%N.cat"); +# else + + cp = stpcpy (cp, LOCALEDIR); + stpcpy (cp, "/%L/LC_MESSAGES/%N.cat"); +# endif + } + else + stpcpy (cp, old_val); + +# if HAVE_SETENV + setenv ("NLSPATH", new_val, 1); + free (new_val); +# else + putenv (new_val); + /* Do *not* free the environment entry we just entered. It is used + from now on. */ +# endif + +#endif + + return (char *) domainname; +} + +#undef gettext +char * +gettext (msg) + const char *msg; +{ + int msgid; + + if (msg == NULL || catalog == (nl_catd) -1) + return (char *) msg; + + /* Get the message from the catalog. We always use set number 1. + The message ID is computed by the function `msg_to_cat_id' + which works on the table generated by `po-to-tbl'. */ + msgid = msg_to_cat_id (msg); + if (msgid == -1) + return (char *) msg; + + return catgets (catalog, 1, msgid, (char *) msg); +} + +/* Look through the table `_msg_tbl' which has `_msg_tbl_length' entries + for the one equal to msg. If it is found return the ID. In case when + the string is not found return -1. */ +static int +msg_to_cat_id (msg) + const char *msg; +{ + int cnt; + + for (cnt = 0; cnt < _msg_tbl_length; ++cnt) + if (strcmp (msg, _msg_tbl[cnt]._msg) == 0) + return _msg_tbl[cnt]._msg_number; + + return -1; +} + + +/* @@ begin of epilog @@ */ + +/* We don't want libintl.a to depend on any other library. So we + avoid the non-standard function stpcpy. In GNU C Library this + function is available, though. Also allow the symbol HAVE_STPCPY + to be defined. */ +#if !_LIBC && !HAVE_STPCPY +static char * +stpcpy (dest, src) + char *dest; + const char *src; +{ + while ((*dest++ = *src++) != '\0') + /* Do nothing. */ ; + return dest - 1; +} +#endif |