1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2006 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
25 #include "assertion.h"
29 #include <localcharset.h>
33 static char *locale = 0;
34 static const char *charset;
37 static iconv_t convertor[n_CONV];
40 /* A wrapper around iconv_open */
42 create_iconv (const char* tocode, const char* fromcode)
44 iconv_t conv = iconv_open (tocode, fromcode);
46 /* I don't think it's safe to translate this string or to use messaging
47 as the convertors have not yet been set up */
48 if ( (iconv_t) -1 == conv)
50 const int err = errno;
52 "Warning: cannot create a convertor for \"%s\" to \"%s\": %s\n",
53 fromcode, tocode, strerror (err));
59 /* Return a string based on TEXT converted according to HOW.
60 If length is not -1, then it must be the number of bytes in TEXT.
61 The returned string must be freed when no longer required.
64 recode_string (enum conv_id how, const char *text, int length)
67 size_t outbufferlength;
73 /* FIXME: Need to ensure that this char is valid in the target encoding */
74 const char fallbackchar = '?';
80 length = strlen(text);
82 assert (how < n_CONV);
84 if (convertor[how] == (iconv_t) -1)
85 return xstrndup (text, length);
87 for ( outbufferlength = 1 ; outbufferlength != 0; outbufferlength <<= 1 )
88 if ( outbufferlength > length)
91 outbuf = xmalloc(outbufferlength);
94 outbytes = outbufferlength;
98 const char *ip = text;
99 result = iconv (convertor[how], (ICONV_CONST char **) &text, &inbytes,
104 int the_error = errno;
112 *op++ = fallbackchar;
121 outbufferlength <<= 1;
122 outbuf = xmalloc (outbufferlength);
124 outbytes = outbufferlength;
129 /* should never happen */
134 } while ( -1 == result );
138 char *const oldaddr = outbuf;
139 outbuf = xrealloc (outbuf, outbufferlength + 1);
141 op += (outbuf - oldaddr) ;
150 /* Returns the current PSPP locale */
152 get_pspp_locale (void)
158 /* Set the PSPP locale */
160 set_pspp_locale (const char *l)
162 char *current_locale;
163 const char *current_charset;
168 current_locale = setlocale (LC_CTYPE, 0);
169 current_charset = locale_charset ();
170 setlocale (LC_CTYPE, locale);
172 charset = locale_charset ();
173 setlocale (LC_CTYPE, current_locale);
175 iconv_close (convertor[CONV_PSPP_TO_UTF8]);
176 convertor[CONV_PSPP_TO_UTF8] = create_iconv ("UTF-8", charset);
178 iconv_close (convertor[CONV_SYSTEM_TO_PSPP]);
179 convertor[CONV_SYSTEM_TO_PSPP] = create_iconv (charset, current_charset);
186 locale = strdup (setlocale (LC_CTYPE, NULL));
188 setlocale (LC_CTYPE, locale);
189 charset = locale_charset ();
191 convertor[CONV_PSPP_TO_UTF8] = create_iconv ("UTF-8", charset);
192 convertor[CONV_SYSTEM_TO_PSPP] = create_iconv (charset, charset);
203 for(i = 0 ; i < n_CONV; ++i )
205 if ( (iconv_t) -1 == convertor[i] )
207 iconv_close (convertor[i]);