/* nls.c -- skeletal internationalization code. */
-/* Copyright (C) 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
- This file is part of the GNU Readline Library, a library for
- reading lines of text with interactive input and history editing.
+ This file is part of the GNU Readline Library (Readline), a library
+ for reading lines of text with interactive input and history editing.
- The GNU Readline Library 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 1, or
+ Readline 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 3 of the License, or
(at your option) any later version.
- The GNU Readline Library 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
+ Readline 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.
- The GNU General Public License is often shipped with GNU software, and
- is generally kept in a file called COPYING or LICENSE. If you do not
- have a copy of the license, write to the Free Software Foundation,
- 675 Mass Ave, Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU General Public License
+ along with Readline. If not, see <http://www.gnu.org/licenses/>.
+*/
+
#define READLINE_LIBRARY
#if defined (HAVE_CONFIG_H)
#include <sys/types.h>
+#include <stdio.h>
+
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
# include <locale.h>
#endif
+#if defined (HAVE_LANGINFO_CODESET)
+# include <langinfo.h>
+#endif
+
#include <ctype.h>
#include "rldefs.h"
+#include "readline.h"
+#include "rlshell.h"
+#include "rlprivate.h"
-extern int _rl_convert_meta_chars_to_ascii;
-extern int _rl_output_meta_chars;
-extern int _rl_meta_flag;
-
-/* Functions imported from shell.c */
-extern char *get_env_value ();
+static int utf8locale PARAMS((char *));
#if !defined (HAVE_SETLOCALE)
/* A list of legal values for the LANG or LC_CTYPE environment variables.
"iso88599",
"iso885910",
"koi8r",
- "koi8-r",
+ "utf8",
0
};
-static char *normalize_codeset ();
-static char *find_codeset ();
+static char *normalize_codeset PARAMS((char *));
#endif /* !HAVE_SETLOCALE */
+static char *find_codeset PARAMS((char *, size_t *));
+
+static char *_rl_get_locale_var PARAMS((const char *));
+
+static char *
+_rl_get_locale_var (const char *v)
+{
+ char *lspec;
+
+ lspec = sh_get_env_value ("LC_ALL");
+ if (lspec == 0 || *lspec == 0)
+ lspec = sh_get_env_value (v);
+ if (lspec == 0 || *lspec == 0)
+ lspec = sh_get_env_value ("LANG");
+
+ return lspec;
+}
+
+static int
+utf8locale (char *lspec)
+{
+ char *cp;
+ size_t len;
+
+#if HAVE_LANGINFO_CODESET
+ cp = nl_langinfo (CODESET);
+ return (STREQ (cp, "UTF-8") || STREQ (cp, "utf8"));
+#else
+ cp = find_codeset (lspec, &len);
+
+ if (cp == 0 || len < 4 || len > 5)
+ return 0;
+ return ((len == 5) ? strncmp (cp, "UTF-8", len) == 0 : strncmp (cp, "utf8", 4) == 0);
+#endif
+}
+
+/* Query the right environment variables and call setlocale() to initialize
+ the C library locale settings. */
+char *
+_rl_init_locale (void)
+{
+ char *ret, *lspec;
+
+ /* Set the LC_CTYPE locale category from environment variables. */
+ lspec = _rl_get_locale_var ("LC_CTYPE");
+ /* Since _rl_get_locale_var queries the right environment variables,
+ we query the current locale settings with setlocale(), and, if
+ that doesn't return anything, we set lspec to the empty string to
+ force the subsequent call to setlocale() to define the `native'
+ environment. */
+ if (lspec == 0 || *lspec == 0)
+ lspec = setlocale (LC_CTYPE, (char *)NULL);
+ if (lspec == 0)
+ lspec = "";
+ ret = setlocale (LC_CTYPE, lspec); /* ok, since it does not change locale */
+
+ _rl_utf8locale = (ret && *ret) ? utf8locale (ret) : 0;
+
+ return ret;
+}
+
/* Check for LC_ALL, LC_CTYPE, and LANG and use the first with a value
to decide the defaults for 8-bit character input and output. Returns
1 if we set eight-bit mode. */
int
-_rl_init_eightbit ()
+_rl_init_eightbit (void)
{
/* If we have setlocale(3), just check the current LC_CTYPE category
value, and go into eight-bit mode if it's not C or POSIX. */
#if defined (HAVE_SETLOCALE)
- char *t;
+ char *lspec, *t;
+
+ t = _rl_init_locale (); /* returns static pointer */
- /* Set the LC_CTYPE locale category from environment variables. */
- t = setlocale (LC_CTYPE, "");
if (t && *t && (t[0] != 'C' || t[1]) && (STREQ (t, "POSIX") == 0))
{
_rl_meta_flag = 1;
/* We don't have setlocale. Finesse it. Check the environment for the
appropriate variables and set eight-bit mode if they have the right
values. */
- lspec = get_env_value ("LC_ALL");
- if (lspec == 0) lspec = get_env_value ("LC_CTYPE");
- if (lspec == 0) lspec = get_env_value ("LANG");
+ lspec = _rl_get_locale_var ("LC_CTYPE");
+
if (lspec == 0 || (t = normalize_codeset (lspec)) == 0)
return (0);
for (i = 0; t && legal_lang_values[i]; i++)
_rl_output_meta_chars = 1;
break;
}
- free (t);
- return (legal_lang_values[i] ? 1 : 0);
+ _rl_utf8locale = *t ? STREQ (t, "utf8") : 0;
+
+ xfree (t);
+ return (legal_lang_values[i] ? 1 : 0);
#endif /* !HAVE_SETLOCALE */
}
#if !defined (HAVE_SETLOCALE)
static char *
-normalize_codeset (codeset)
- char *codeset;
+normalize_codeset (char *codeset)
{
size_t namelen, i;
int len, all_digits;
all_digits = 1;
for (len = 0, i = 0; i < namelen; i++)
{
- if (isalnum (codeset[i]))
+ if (ISALNUM ((unsigned char)codeset[i]))
{
len++;
- all_digits &= isdigit (codeset[i]);
+ all_digits &= _rl_digit_p (codeset[i]);
}
}
}
for (i = 0; i < namelen; i++)
- if (isalpha (codeset[i]))
- *wp++ = (isupper (codeset[i])) ? tolower (codeset[i]) : codeset[i];
- else if (isdigit (codeset[i]))
+ if (ISALPHA ((unsigned char)codeset[i]))
+ *wp++ = _rl_to_lower (codeset[i]);
+ else if (_rl_digit_p (codeset[i]))
*wp++ = codeset[i];
*wp = '\0';
return retval;
}
+#endif /* !HAVE_SETLOCALE */
/* Isolate codeset portion of locale specification. */
static char *
-find_codeset (name, lenp)
- char *name;
- size_t *lenp;
+find_codeset (char *name, size_t *lenp)
{
char *cp, *language, *result;
return result;
}
-#endif /* !HAVE_SETLOCALE */
projects / deliverable / binutils-gdb.git / blobdiff