explodename.c
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上传日期:2007-01-04
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文件大小:5k
- /* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
- Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 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; 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
- #if defined STDC_HEADERS || defined _LIBC
- # include <stdlib.h>
- #endif
- #if defined HAVE_STRING_H || defined _LIBC
- # include <string.h>
- #else
- # include <strings.h>
- #endif
- #include <sys/types.h>
- #include "loadinfo.h"
- /* On some strange systems still no definition of NULL is found. Sigh! */
- #ifndef NULL
- # if defined __STDC__ && __STDC__
- # define NULL ((void *) 0)
- # else
- # define NULL 0
- # endif
- #endif
- /* @@ end of prolog @@ */
- int
- _nl_explode_name (name, language, modifier, territory, codeset,
- normalized_codeset, special, sponsor, revision)
- char *name;
- const char **language;
- const char **modifier;
- const char **territory;
- const char **codeset;
- const char **normalized_codeset;
- const char **special;
- const char **sponsor;
- const char **revision;
- {
- enum { undecided, xpg, cen } syntax;
- char *cp;
- int mask;
- *modifier = NULL;
- *territory = NULL;
- *codeset = NULL;
- *normalized_codeset = NULL;
- *special = NULL;
- *sponsor = NULL;
- *revision = NULL;
- /* Now we determine the single parts of the locale name. First
- look for the language. Termination symbols are `_' and `@' if
- we use XPG4 style, and `_', `+', and `,' if we use CEN syntax. */
- mask = 0;
- syntax = undecided;
- *language = cp = name;
- while (cp[0] != ' ' && cp[0] != '_' && cp[0] != '@'
- && cp[0] != '+' && cp[0] != ',')
- ++cp;
- if (*language == cp)
- /* This does not make sense: language has to be specified. Use
- this entry as it is without exploding. Perhaps it is an alias. */
- cp = strchr (*language, ' ');
- else if (cp[0] == '_')
- {
- /* Next is the territory. */
- cp[0] = ' ';
- *territory = ++cp;
- while (cp[0] != ' ' && cp[0] != '.' && cp[0] != '@'
- && cp[0] != '+' && cp[0] != ',' && cp[0] != '_')
- ++cp;
- mask |= TERRITORY;
- if (cp[0] == '.')
- {
- /* Next is the codeset. */
- syntax = xpg;
- cp[0] = ' ';
- *codeset = ++cp;
- while (cp[0] != ' ' && cp[0] != '@')
- ++cp;
- mask |= XPG_CODESET;
- if (*codeset != cp && (*codeset)[0] != ' ')
- {
- *normalized_codeset = _nl_normalize_codeset (*codeset,
- cp - *codeset);
- if (strcmp (*codeset, *normalized_codeset) == 0)
- free ((char *) *normalized_codeset);
- else
- mask |= XPG_NORM_CODESET;
- }
- }
- }
- if (cp[0] == '@' || (syntax != xpg && cp[0] == '+'))
- {
- /* Next is the modifier. */
- syntax = cp[0] == '@' ? xpg : cen;
- cp[0] = ' ';
- *modifier = ++cp;
- while (syntax == cen && cp[0] != ' ' && cp[0] != '+'
- && cp[0] != ',' && cp[0] != '_')
- ++cp;
- mask |= XPG_MODIFIER | CEN_AUDIENCE;
- }
- if (syntax != xpg && (cp[0] == '+' || cp[0] == ',' || cp[0] == '_'))
- {
- syntax = cen;
- if (cp[0] == '+')
- {
- /* Next is special application (CEN syntax). */
- cp[0] = ' ';
- *special = ++cp;
- while (cp[0] != ' ' && cp[0] != ',' && cp[0] != '_')
- ++cp;
- mask |= CEN_SPECIAL;
- }
- if (cp[0] == ',')
- {
- /* Next is sponsor (CEN syntax). */
- cp[0] = ' ';
- *sponsor = ++cp;
- while (cp[0] != ' ' && cp[0] != '_')
- ++cp;
- mask |= CEN_SPONSOR;
- }
- if (cp[0] == '_')
- {
- /* Next is revision (CEN syntax). */
- cp[0] = ' ';
- *revision = ++cp;
- mask |= CEN_REVISION;
- }
- }
- /* For CEN syntax values it might be important to have the
- separator character in the file name, not for XPG syntax. */
- if (syntax == xpg)
- {
- if (*territory != NULL && (*territory)[0] == ' ')
- mask &= ~TERRITORY;
- if (*codeset != NULL && (*codeset)[0] == ' ')
- mask &= ~XPG_CODESET;
- if (*modifier != NULL && (*modifier)[0] == ' ')
- mask &= ~XPG_MODIFIER;
- }
- return mask;
- }