Initial revision

From-SVN: r19441

gcc/intl/explodename.c

+/* 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] != '\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, '\0');
+  else if (cp[0] == '_')
+    {
+      /* Next is the territory.  */
+      cp[0] = '\0';
+      *territory = ++cp;
+
+      while (cp[0] != '\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] = '\0';
+	  *codeset = ++cp;
+
+	  while (cp[0] != '\0' && cp[0] != '@')
+	    ++cp;
+
+	  mask |= XPG_CODESET;
+
+	  if (*codeset != cp && (*codeset)[0] != '\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] = '\0';
+      *modifier = ++cp;
+
+      while (syntax == cen && cp[0] != '\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] = '\0';
+	  *special = ++cp;
+
+	  while (cp[0] != '\0' && cp[0] != ',' && cp[0] != '_')
+	    ++cp;
+
+	  mask |= CEN_SPECIAL;
+	}
+
+      if (cp[0] == ',')
+	{
+ 	  /* Next is sponsor (CEN syntax).  */
+	  cp[0] = '\0';
+	  *sponsor = ++cp;
+
+	  while (cp[0] != '\0' && cp[0] != '_')
+	    ++cp;
+
+	  mask |= CEN_SPONSOR;
+	}
+
+      if (cp[0] == '_')
+	{
+ 	  /* Next is revision (CEN syntax).  */
+	  cp[0] = '\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] == '\0')
+	mask &= ~TERRITORY;
+
+      if (*codeset != NULL && (*codeset)[0] == '\0')
+	mask &= ~XPG_CODESET;
+
+      if (*modifier != NULL && (*modifier)[0] == '\0')
+	mask &= ~XPG_MODIFIER;
+    }
+
+  return mask;
+}