1 /* PSPP - computes sample statistics.
2 Copyright (C) 2006 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful, but
10 WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 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, write to the Free Software
16 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
30 #include <localcharset.h>
34 static char *locale = 0;
35 static const char *charset;
38 static iconv_t convertor[n_CONV];
41 /* A wrapper around iconv_open */
43 create_iconv (const char* tocode, const char* fromcode)
45 iconv_t conv = iconv_open (tocode, fromcode);
47 /* I don't think it's safe to translate this string or to use messaging
48 as the convertors have not yet been set up */
49 if ( (iconv_t) -1 == conv)
51 const int err = errno;
53 "Warning: cannot create a convertor for \"%s\" to \"%s\": %s\n",
54 fromcode, tocode, strerror (err));
60 /* Return a string based on TEXT converted according to HOW.
61 If length is not -1, then it must be the number of bytes in TEXT.
62 The returned string must be freed when no longer required.
65 recode_string(enum conv_id how, const char *text, int length)
68 size_t outbufferlength;
74 /* FIXME: Need to ensure that this char is valid in the target encoding */
75 const char fallbackchar = '?';
81 length = strlen(text);
85 if (convertor[how] == (iconv_t) -1)
86 return xstrndup (text, length);
88 for ( outbufferlength = 1 ; outbufferlength != 0; outbufferlength <<= 1 )
89 if ( outbufferlength > length)
92 outbuf = xmalloc(outbufferlength);
95 outbytes = outbufferlength;
99 result = iconv(convertor[how], &text, &inbytes,
104 int the_error = errno;
112 *op++ = fallbackchar;
121 outbufferlength <<= 1;
122 outbuf = xmalloc(outbufferlength);
124 outbytes = outbufferlength;
128 /* should never happen */
133 } while ( -1 == result );
137 char *const oldaddr = outbuf;
138 outbuf = xrealloc(outbuf, outbufferlength + 1);
140 op += (outbuf - oldaddr) ;
149 /* Returns the current PSPP locale */
151 get_pspp_locale(void)
157 /* Set the PSPP locale */
159 set_pspp_locale(const char *l)
161 char *current_locale;
162 const char *current_charset;
167 current_locale = setlocale(LC_CTYPE, 0);
168 current_charset = locale_charset();
169 setlocale(LC_CTYPE, locale);
171 charset = locale_charset();
172 setlocale(LC_CTYPE, current_locale);
174 iconv_close(convertor[CONV_PSPP_TO_UTF8]);
175 convertor[CONV_PSPP_TO_UTF8] = create_iconv ("UTF-8", charset);
177 iconv_close(convertor[CONV_SYSTEM_TO_PSPP]);
178 convertor[CONV_SYSTEM_TO_PSPP] = create_iconv (charset, current_charset);
185 locale = strdup(setlocale(LC_CTYPE, NULL));
187 setlocale(LC_CTYPE, locale);
188 charset = locale_charset();
190 convertor[CONV_PSPP_TO_UTF8] = create_iconv ("UTF-8", charset);
191 convertor[CONV_SYSTEM_TO_PSPP] = create_iconv (charset, charset);
202 for(i = 0 ; i < n_CONV; ++i )
204 if ( (iconv_t) -1 == convertor[i] )
206 iconv_close(convertor[i]);