-/* PSPP - computes sample statistics.
- Copyright (C) 2006 Free Software Foundation, Inc.
- Written by John Darrington <john@darrington.wattle.id.au>
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 2006, 2009 Free Software Foundation, Inc.
- 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 of the
- License, or (at your option) any later version.
+ 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 3 of the License, 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.
+ 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., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <xalloc.h>
#include <assert.h>
+#include <locale.h>
#include <stdlib.h>
+#include <stdio.h>
#include <string.h>
+#include <libintl.h>
#include <iconv.h>
#include <errno.h>
+#include <relocatable.h>
+#include "assertion.h"
+#include "hmapx.h"
+#include "hash-functions.h"
+#include "pool.h"
#include "i18n.h"
+#include "version.h"
+
#include <localcharset.h>
+#include "xstrndup.h"
+
+#if HAVE_NL_LANGINFO
+#include <langinfo.h>
+#endif
+
+struct converter
+ {
+ const char *tocode;
+ const char *fromcode;
+ iconv_t conv;
+ };
+static char *default_encoding;
+static struct hmapx map;
-static char *locale = 0;
-static const char *charset;
+/* A wrapper around iconv_open */
+static iconv_t
+create_iconv (const char* tocode, const char* fromcode)
+{
+ size_t hash;
+ struct hmapx_node *node;
+ struct converter *converter;
+ assert (fromcode);
+
+ hash = hash_string (tocode, hash_string (fromcode, 0));
+ HMAPX_FOR_EACH_WITH_HASH (converter, node, hash, &map)
+ if (!strcmp (tocode, converter->tocode)
+ && !strcmp (fromcode, converter->fromcode))
+ return converter->conv;
+
+ converter = xmalloc (sizeof *converter);
+ converter->tocode = xstrdup (tocode);
+ converter->fromcode = xstrdup (fromcode);
+ converter->conv = iconv_open (tocode, fromcode);
+ hmapx_insert (&map, converter, hash);
+
+ /* I don't think it's safe to translate this string or to use messaging
+ as the convertors have not yet been set up */
+ if ( (iconv_t) -1 == converter->conv && 0 != strcmp (tocode, fromcode))
+ {
+ const int err = errno;
+ fprintf (stderr,
+ "Warning: "
+ "cannot create a convertor for \"%s\" to \"%s\": %s\n",
+ fromcode, tocode, strerror (err));
+ }
+
+ return converter->conv;
+}
+char *
+recode_string (const char *to, const char *from,
+ const char *text, int length)
+{
+ return recode_string_pool (to, from, text, length, NULL);
+}
-static iconv_t convertor[n_CONV];
/* Return a string based on TEXT converted according to HOW.
If length is not -1, then it must be the number of bytes in TEXT.
The returned string must be freed when no longer required.
*/
char *
-recode_string(enum conv_id how, const char *text, int length)
+recode_string_pool (const char *to, const char *from,
+ const char *text, int length, struct pool *pool)
{
char *outbuf = 0;
size_t outbufferlength;
size_t result;
- char *ip ;
char *op ;
size_t inbytes = 0;
size_t outbytes ;
+ iconv_t conv ;
/* FIXME: Need to ensure that this char is valid in the target encoding */
const char fallbackchar = '?';
- if ( length == -1 )
+ if ( text == NULL )
+ return NULL;
+
+ if ( length == -1 )
length = strlen(text);
- assert(how < n_CONV);
+
+ if (to == NULL)
+ to = default_encoding;
+
+ if (from == NULL)
+ from = default_encoding;
for ( outbufferlength = 1 ; outbufferlength != 0; outbufferlength <<= 1 )
- if ( outbufferlength > length)
+ if ( outbufferlength > length)
break;
- outbuf = xmalloc(outbufferlength);
+ outbuf = pool_malloc (pool, outbufferlength);
op = outbuf;
- ip = (char *) text;
outbytes = outbufferlength;
inbytes = length;
-
- do {
-
- result = iconv(convertor[how], &ip, &inbytes,
+
+ conv = create_iconv (to, from);
+
+ if ( (iconv_t) -1 == conv )
+ return xstrdup (text);
+
+ do {
+ const char *ip = text;
+ result = iconv (conv, (ICONV_CONST char **) &text, &inbytes,
&op, &outbytes);
- if ( -1 == result )
+ if ( -1 == result )
{
int the_error = errno;
- switch ( the_error)
+ switch (the_error)
{
case EILSEQ:
case EINVAL:
- if ( outbytes > 0 )
+ if ( outbytes > 0 )
{
*op++ = fallbackchar;
outbytes--;
- ip++;
+ text++;
inbytes--;
break;
}
/* Fall through */
case E2BIG:
- free(outbuf);
+ free (outbuf);
outbufferlength <<= 1;
- outbuf = xmalloc(outbufferlength);
+ outbuf = pool_malloc (pool, outbufferlength);
op = outbuf;
- ip = (char *) text;
outbytes = outbufferlength;
inbytes = length;
+ text = ip;
break;
default:
/* should never happen */
+ fprintf (stderr, "Character conversion error: %s\n", strerror (the_error));
+ NOT_REACHED ();
break;
}
-
}
-
} while ( -1 == result );
+ if (outbytes == 0 )
+ {
+ char *const oldaddr = outbuf;
+ outbuf = pool_realloc (pool, outbuf, outbufferlength + 1);
+
+ op += (outbuf - oldaddr) ;
+ }
+
*op = '\0';
-
return outbuf;
}
-/* Returns the current PSPP locale */
+void
+i18n_init (void)
+{
+#if ENABLE_NLS
+ setlocale (LC_CTYPE, "");
+#ifdef LC_MESSAGES
+ setlocale (LC_MESSAGES, "");
+#endif
+#if HAVE_LC_PAPER
+ setlocale (LC_PAPER, "");
+#endif
+ bindtextdomain (PACKAGE, relocate(locale_dir));
+ textdomain (PACKAGE);
+#endif /* ENABLE_NLS */
+
+ assert (default_encoding == NULL);
+ default_encoding = xstrdup (locale_charset ());
+
+ hmapx_init (&map);
+}
+
+
const char *
-get_pspp_locale(void)
+get_default_encoding (void)
{
- assert ( locale);
- return locale;
+ return default_encoding;
}
-/* Set the PSPP locale */
-void
-set_pspp_locale(const char *l)
+void
+set_default_encoding (const char *enc)
{
- char *current_locale;
- const char *current_charset;
+ free (default_encoding);
+ default_encoding = xstrdup (enc);
+}
+
+
+/* Attempts to set the encoding from a locale name
+ returns true if successfull.
+ This function does not (should not!) alter the current locale.
+*/
+bool
+set_encoding_from_locale (const char *loc)
+{
+ bool ok = true;
+ char *c_encoding;
+ char *loc_encoding;
+ char *tmp = xstrdup (setlocale (LC_CTYPE, NULL));
+
+ setlocale (LC_CTYPE, "C");
+ c_encoding = xstrdup (locale_charset ());
+
+ setlocale (LC_CTYPE, loc);
+ loc_encoding = xstrdup (locale_charset ());
+
- free(locale);
- locale = strdup(l);
+ if ( 0 == strcmp (loc_encoding, c_encoding))
+ {
+ ok = false;
+ }
- current_locale = setlocale(LC_CTYPE, 0);
- current_charset = locale_charset();
- setlocale(LC_CTYPE, locale);
-
- charset = locale_charset();
- setlocale(LC_CTYPE, current_locale);
- iconv_close(convertor[CONV_PSPP_TO_UTF8]);
- convertor[CONV_PSPP_TO_UTF8] = iconv_open("UTF-8", charset);
+ setlocale (LC_CTYPE, tmp);
- iconv_close(convertor[CONV_SYSTEM_TO_PSPP]);
- convertor[CONV_SYSTEM_TO_PSPP] = iconv_open(charset, current_charset);
+ free (tmp);
+
+ if (ok)
+ {
+ free (default_encoding);
+ default_encoding = loc_encoding;
+ }
+ else
+ free (loc_encoding);
+
+ free (c_encoding);
+
+ return ok;
}
void
-i18n_init(void)
+i18n_done (void)
{
- assert ( ! locale) ;
- locale = strdup(setlocale(LC_CTYPE, NULL));
+ struct hmapx_node *node;
+ struct converter *cvtr;
+ HMAPX_FOR_EACH (cvtr, node, &map)
+ {
+ iconv_close (cvtr->conv);
+ free (cvtr);
+ }
+
+ hmapx_destroy (&map);
+
+ free (default_encoding);
+ default_encoding = NULL;
+}
+
- setlocale(LC_CTYPE, locale);
- charset = locale_charset();
- convertor[CONV_PSPP_TO_UTF8] = iconv_open("UTF-8", charset);
- convertor[CONV_SYSTEM_TO_PSPP] = iconv_open(charset, charset);
+bool
+valid_encoding (const char *enc)
+{
+ iconv_t conv = iconv_open ("UTF8", enc);
+
+ if ( conv == (iconv_t) -1)
+ return false;
+
+ iconv_close (conv);
+
+ return true;
}
-void
-i18n_done(void)
+/* Return the system local's idea of the
+ decimal seperator character */
+char
+get_system_decimal (void)
{
- int i;
- free(locale);
- locale = 0;
-
- for(i = 0 ; i < n_CONV; ++i )
- iconv_close(convertor[i]);
+ char radix_char;
+
+ char *ol = xstrdup (setlocale (LC_NUMERIC, NULL));
+ setlocale (LC_NUMERIC, "");
+
+#if HAVE_NL_LANGINFO
+ radix_char = nl_langinfo (RADIXCHAR)[0];
+#else
+ {
+ char buf[10];
+ snprintf (buf, sizeof buf, "%f", 2.5);
+ radix_char = buf[1];
+ }
+#endif
+
+ /* We MUST leave LC_NUMERIC untouched, since it would
+ otherwise interfere with data_{in,out} */
+ setlocale (LC_NUMERIC, ol);
+ free (ol);
+ return radix_char;
}
+
projects / pspp-builds.git / blobdiff