Import glibc-mainline for 2006-08-16

git-svn-id: svn://svn.eglibc.org/fsf/trunk@4 7b3dc134-2b1b-0410-93df-9e9f96275f8d

1 files changed, 348 insertions, 0 deletions

diff --git a/libc/locale/programs/ld-messages.c b/libc/locale/programs/ld-messages.c
new file mode 100644
index 000000000..e98574f13
--- /dev/null
+++ b/libc/locale/programs/ld-messages.c
@@ -0,0 +1,348 @@
+/* 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 version 2 as
+   published by the Free Software Foundation.
+
+   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");
+}