initial import from bash_3.1dfsg.orig.tar.gz

1 files changed, 496 insertions, 0 deletions

diff --git a/locale.c b/locale.c
new file mode 100644
index 0000000..48e44ec
--- /dev/null
+++ b/locale.c
@@ -0,0 +1,496 @@
+/* locale.c - Miscellaneous internationalization functions. */
+
+/* Copyright (C) 1996-2004 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+
+   Bash 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.
+
+   Bash 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 Bash; see the file COPYING.  If not, write to the Free Software
+   Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+
+#include "config.h"
+
+#include "bashtypes.h"
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif
+
+#include "bashintl.h"
+#include "bashansi.h"
+#include <stdio.h>
+#include "chartypes.h"
+
+#include "shell.h"
+#include "input.h"	/* For bash_input */
+
+extern int dump_translatable_strings, dump_po_strings;
+
+/* The current locale when the program begins */
+static char *default_locale;
+
+/* The current domain for textdomain(3). */
+static char *default_domain;
+static char *default_dir;
+
+/* tracks the value of LC_ALL; used to override values for other locale
+   categories */
+static char *lc_all;
+
+/* tracks the value of LC_ALL; used to provide defaults for locale
+   categories */
+static char *lang;
+
+/* Called to reset all of the locale variables to their appropriate values
+   if (and only if) LC_ALL has not been assigned a value. */
+static int reset_locale_vars __P((void));
+
+static void locale_setblanks __P((void));
+
+/* Set the value of default_locale and make the current locale the
+   system default locale.  This should be called very early in main(). */
+void
+set_default_locale ()
+{
+#if defined (HAVE_SETLOCALE)
+  default_locale = setlocale (LC_ALL, "");
+  if (default_locale)
+    default_locale = savestring (default_locale);
+#endif /* HAVE_SETLOCALE */
+  bindtextdomain (PACKAGE, LOCALEDIR);
+  textdomain (PACKAGE);
+}
+
+/* Set default values for LC_CTYPE, LC_COLLATE, LC_MESSAGES, LC_NUMERIC and
+   LC_TIME if they are not specified in the environment, but LC_ALL is.  This
+   should be called from main() after parsing the environment. */
+void
+set_default_locale_vars ()
+{
+  char *val;
+  int r;
+
+#if defined (HAVE_SETLOCALE)
+
+#  if defined (LC_CTYPE)
+  val = get_string_value ("LC_CTYPE");
+  if (val == 0 && lc_all && *lc_all)
+    {
+      setlocale (LC_CTYPE, lc_all);
+      locale_setblanks ();
+    }
+#  endif
+
+#  if defined (LC_COLLATE)
+  val = get_string_value ("LC_COLLATE");
+  if (val == 0 && lc_all && *lc_all)
+    setlocale (LC_COLLATE, lc_all);
+#  endif /* LC_COLLATE */
+
+#  if defined (LC_MESSAGES)
+  val = get_string_value ("LC_MESSAGES");
+  if (val == 0 && lc_all && *lc_all)
+    setlocale (LC_MESSAGES, lc_all);
+#  endif /* LC_MESSAGES */
+
+#  if defined (LC_NUMERIC)
+  val = get_string_value ("LC_NUMERIC");
+  if (val == 0 && lc_all && *lc_all)
+    setlocale (LC_NUMERIC, lc_all);
+#  endif /* LC_NUMERIC */
+
+#  if defined (LC_TIME)
+  val = get_string_value ("LC_TIME");
+  if (val == 0 && lc_all && *lc_all)
+    setlocale (LC_TIME, lc_all);
+#  endif /* LC_TIME */
+
+#endif /* HAVE_SETLOCALE */
+
+  val = get_string_value ("TEXTDOMAIN");
+  if (val && *val)
+    {
+      FREE (default_domain);
+      default_domain = savestring (val);
+#if 0
+      /* Don't want to override the shell's textdomain as the default */
+      textdomain (default_domain);
+#endif
+    }
+
+  val = get_string_value ("TEXTDOMAINDIR");
+  if (val && *val)
+    {
+      FREE (default_dir);
+      default_dir = savestring (val);
+      if (default_domain && *default_domain)
+	bindtextdomain (default_domain, default_dir);
+    }
+}
+
+/* Set one of the locale categories (specified by VAR) to VALUE.  Returns 1
+  if successful, 0 otherwise. */
+int
+set_locale_var (var, value)
+     char *var, *value;
+{
+  int r;
+
+  if (var[0] == 'T' && var[10] == 0)		/* TEXTDOMAIN */
+    {
+      FREE (default_domain);
+      default_domain = value ? savestring (value) : (char *)NULL;
+#if 0
+      /* Don't want to override the shell's textdomain as the default */
+      textdomain (default_domain);
+#endif
+      return (1);
+    }
+  else if (var[0] == 'T')			/* TEXTDOMAINDIR */
+    {
+      FREE (default_dir);
+      default_dir = value ? savestring (value) : (char *)NULL;
+      if (default_domain && *default_domain)
+	bindtextdomain (default_domain, default_dir);
+      return (1);
+    }
+
+  /* var[0] == 'L' && var[1] == 'C' && var[2] == '_' */
+
+  else if (var[3] == 'A')			/* LC_ALL */
+    {
+      FREE (lc_all);
+      if (value)
+	lc_all = savestring (value);
+      else
+	{
+	  lc_all = (char *)xmalloc (1);
+	  lc_all[0] = '\0';
+	}
+#if defined (HAVE_SETLOCALE)
+      r = *lc_all ? (setlocale (LC_ALL, lc_all) != 0) : reset_locale_vars ();
+      locale_setblanks ();
+      return r;
+#else
+      return (1);
+#endif
+    }
+
+#if defined (HAVE_SETLOCALE)
+  else if (var[3] == 'C' && var[4] == 'T')	/* LC_CTYPE */
+    {
+#  if defined (LC_CTYPE)
+      if (lc_all == 0 || *lc_all == '\0')
+	{
+	  r = (setlocale (LC_CTYPE, get_locale_var ("LC_CTYPE")) != 0);
+	  locale_setblanks ();
+	  return r;
+	}
+#  endif
+    }
+  else if (var[3] == 'C' && var[4] == 'O')	/* LC_COLLATE */
+    {
+#  if defined (LC_COLLATE)
+      if (lc_all == 0 || *lc_all == '\0')
+	return (setlocale (LC_COLLATE, get_locale_var ("LC_COLLATE")) != 0);
+#  endif /* LC_COLLATE */
+    }
+  else if (var[3] == 'M' && var[4] == 'E')	/* LC_MESSAGES */
+    {
+#  if defined (LC_MESSAGES)
+      if (lc_all == 0 || *lc_all == '\0')
+	return (setlocale (LC_MESSAGES, get_locale_var ("LC_MESSAGES")) != 0);
+#  endif /* LC_MESSAGES */
+    }
+  else if (var[3] == 'N' && var[4] == 'U')	/* LC_NUMERIC */
+    {
+#  if defined (LC_NUMERIC)
+      if (lc_all == 0 || *lc_all == '\0')
+	return (setlocale (LC_NUMERIC, get_locale_var ("LC_NUMERIC")) != 0);
+#  endif /* LC_NUMERIC */
+    }
+  else if (var[3] == 'T' && var[4] == 'I')	/* LC_TIME */
+    {
+#  if defined (LC_TIME)
+      if (lc_all == 0 || *lc_all == '\0')
+	return (setlocale (LC_TIME, get_locale_var ("LC_TIME")) != 0);
+#  endif /* LC_TIME */
+    }
+#endif /* HAVE_SETLOCALE */
+  
+
+  return (0);
+}
+
+/* Called when LANG is assigned a value.  Tracks value in `lang'.  Calls
+   reset_locale_vars() to reset any default values if LC_ALL is unset or
+   null. */
+int
+set_lang (var, value)
+     char *var, *value;
+{
+  FREE (lang);
+  if (value)
+    lang = savestring (value);
+  else
+    {
+      lang = (char *)xmalloc (1);
+      lang[0] = '\0';
+    }
+    
+  return ((lc_all == 0 || *lc_all == 0) ? reset_locale_vars () : 0);
+}
+
+/* Get the value of one of the locale variables (LC_MESSAGES, LC_CTYPE).
+   The precedence is as POSIX.2 specifies:  LC_ALL has precedence over
+   the specific locale variables, and LANG, if set, is used as the default. */
+char *
+get_locale_var (var)
+     char *var;
+{
+  char *locale;
+
+  locale = lc_all;
+
+  if (locale == 0 || *locale == 0)
+    locale = get_string_value (var);
+  if (locale == 0 || *locale == 0)
+    locale = lang;
+  if (locale == 0 || *locale == 0)
+    locale = default_locale;	/* system-dependent; not really portable */
+
+  return (locale);
+}
+
+/* Called to reset all of the locale variables to their appropriate values
+   if (and only if) LC_ALL has not been assigned a value.  DO NOT CALL THIS
+   IF LC_ALL HAS BEEN ASSIGNED A VALUE. */
+static int
+reset_locale_vars ()
+{
+#if defined (HAVE_SETLOCALE)
+  char *locale;
+
+  locale = lang;
+  if (locale == 0 || *locale == '\0')
+    locale = default_locale;
+  if (setlocale (LC_ALL, locale) == 0)
+    return 0;
+
+#  if defined (LC_CTYPE)
+  setlocale (LC_CTYPE, get_locale_var ("LC_CTYPE"));
+#  endif
+#  if defined (LC_COLLATE)
+  setlocale (LC_COLLATE, get_locale_var ("LC_COLLATE"));
+#  endif
+#  if defined (LC_MESSAGES)
+  setlocale (LC_MESSAGES, get_locale_var ("LC_MESSAGES"));
+#  endif
+#  if defined (LC_NUMERIC)
+  setlocale (LC_NUMERIC, get_locale_var ("LC_NUMERIC"));
+#  endif
+#  if defined (LC_TIME)
+  setlocale (LC_TIME, get_locale_var ("LC_TIME"));
+#  endif
+
+  locale_setblanks ();  
+
+#endif
+  return 1;
+}
+
+/* Translate the contents of STRING, a $"..." quoted string, according
+   to the current locale.  In the `C' or `POSIX' locale, or if gettext()
+   is not available, the passed string is returned unchanged.  The
+   length of the translated string is returned in LENP, if non-null. */
+char *
+localetrans (string, len, lenp)
+     char *string;
+     int len, *lenp;
+{
+  char *locale, *t;
+  char *translated;
+  int tlen;
+
+  /* Don't try to translate null strings. */
+  if (string == 0 || *string == 0)
+    {
+      if (lenp)
+	*lenp = 0;
+      return ((char *)NULL);
+    }
+
+  locale = get_locale_var ("LC_MESSAGES");
+
+  /* If we don't have setlocale() or the current locale is `C' or `POSIX',
+     just return the string.  If we don't have gettext(), there's no use
+     doing anything else. */
+  if (locale == 0 || locale[0] == '\0' ||
+      (locale[0] == 'C' && locale[1] == '\0') || STREQ (locale, "POSIX"))
+    {
+      t = (char *)xmalloc (len + 1);
+      strcpy (t, string);
+      if (lenp)
+	*lenp = len;
+      return (t);
+    }
+
+  /* Now try to translate it. */
+  if (default_domain && *default_domain)
+    translated = dgettext (default_domain, string);
+  else
+    translated = string;
+
+  if (translated == string)	/* gettext returns its argument if untranslatable */
+    {
+      t = (char *)xmalloc (len + 1);
+      strcpy (t, string);
+      if (lenp)
+	*lenp = len;
+    }
+  else
+    {
+      tlen = strlen (translated);
+      t = (char *)xmalloc (tlen + 1);
+      strcpy (t, translated);
+      if (lenp)
+	*lenp = tlen;
+    }
+  return (t);
+}
+
+/* Change a bash string into a string suitable for inclusion in a `po' file.
+   This backslash-escapes `"' and `\' and changes newlines into \\\n"\n". */
+char *
+mk_msgstr (string, foundnlp)
+     char *string;
+     int *foundnlp;
+{
+  register int c, len;
+  char *result, *r, *s;
+
+  for (len = 0, s = string; s && *s; s++)
+    {
+      len++;
+      if (*s == '"' || *s == '\\')
+	len++;
+      else if (*s == '\n')
+	len += 5;
+    }
+  
+  r = result = (char *)xmalloc (len + 3);
+  *r++ = '"';
+
+  for (s = string; s && (c = *s); s++)
+    {
+      if (c == '\n')	/* <NL> -> \n"<NL>" */
+	{
+	  *r++ = '\\';
+	  *r++ = 'n';
+	  *r++ = '"';
+	  *r++ = '\n';
+	  *r++ = '"';
+	  if (foundnlp)
+	    *foundnlp = 1;
+	  continue;
+	}
+      if (c == '"' || c == '\\')
+	*r++ = '\\';
+      *r++ = c;
+    }
+
+  *r++ = '"';
+  *r++ = '\0';
+
+  return result;
+}
+
+/* $"..." -- Translate the portion of STRING between START and END
+   according to current locale using gettext (if available) and return
+   the result.  The caller will take care of leaving the quotes intact.
+   The string will be left without the leading `$' by the caller.
+   If translation is performed, the translated string will be double-quoted
+   by the caller.  The length of the translated string is returned in LENP,
+   if non-null. */
+char *
+localeexpand (string, start, end, lineno, lenp)
+     char *string;
+     int start, end, lineno, *lenp;
+{
+  int len, tlen, foundnl;
+  char *temp, *t, *t2;
+
+  temp = (char *)xmalloc (end - start + 1);
+  for (tlen = 0, len = start; len < end; )
+    temp[tlen++] = string[len++];
+  temp[tlen] = '\0';
+
+  /* If we're just dumping translatable strings, don't do anything with the
+     string itself, but if we're dumping in `po' file format, convert it into
+     a form more palatable to gettext(3) and friends by quoting `"' and `\'
+     with backslashes and converting <NL> into `\n"<NL>"'.  If we find a
+     newline in TEMP, we first output a `msgid ""' line and then the
+     translated string; otherwise we output the `msgid' and translated
+     string all on one line. */
+  if (dump_translatable_strings)
+    {
+      if (dump_po_strings)
+	{
+	  foundnl = 0;
+	  t = mk_msgstr (temp, &foundnl);
+	  t2 = foundnl ? "\"\"\n" : "";
+
+	  printf ("#: %s:%d\nmsgid %s%s\nmsgstr \"\"\n",
+			yy_input_name (), lineno, t2, t);
+	  free (t);
+	}
+      else
+	printf ("\"%s\"\n", temp);
+
+      if (lenp)
+	*lenp = tlen;
+      return (temp);
+    }
+  else if (*temp)
+    {
+      t = localetrans (temp, tlen, &len);
+      free (temp);
+      if (lenp)
+	*lenp = len;
+      return (t);
+    }
+  else
+    {
+      if (lenp)
+	*lenp = 0;
+      return (temp);
+    }
+}
+
+/* Set every character in the <blank> character class to be a shell break
+   character for the lexical analyzer when the locale changes. */
+static void
+locale_setblanks ()
+{
+  int x;
+
+  for (x = 0; x < sh_syntabsiz; x++)
+    {
+      if (isblank (x))
+	sh_syntaxtab[x] |= CSHBRK;
+      else if (member (x, shell_break_chars))
+	sh_syntaxtab[x] |= CSHBRK;
+      else
+	sh_syntaxtab[x] &= ~CSHBRK;
+    }
+}