www.pudn.com > gedit-2.8.3.rar > cat-compat.c
/* 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#endif #include #ifdef STDC_HEADERS # include # include #else char *getenv (); # ifdef HAVE_MALLOC_H # include # endif #endif #ifdef HAVE_NL_TYPES_H # include #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