X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flibpspp%2Fi18n.c;h=c0459712e71480dba9503aaa9260a28ac115f4c6;hb=b106c9452e2682e7923dc43028cf0e4b353e5443;hp=f8e5e396e865efe267155f29f02aa29fb024649f;hpb=28ced40c7ddd248b5d64b7b5272fb17b6e97b13a;p=pspp-builds.git diff --git a/src/libpspp/i18n.c b/src/libpspp/i18n.c index f8e5e396..c0459712 100644 --- a/src/libpspp/i18n.c +++ b/src/libpspp/i18n.c @@ -1,5 +1,5 @@ /* PSPP - a program for statistical analysis. - Copyright (C) 2006 Free Software Foundation, Inc. + 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 @@ -21,12 +21,17 @@ #include #include #include +#include #include #include #include "assertion.h" +#include "hmapx.h" +#include "hash-functions.h" #include "i18n.h" +#include "version.h" + #include #include "xstrndup.h" @@ -34,28 +39,46 @@ #include #endif - -static char *locale; -static char *charset; - - -static iconv_t convertor[n_CONV]; - +static char *default_encoding; +static struct hmapx map; /* A wrapper around iconv_open */ static iconv_t create_iconv (const char* tocode, const char* fromcode) { - iconv_t conv = iconv_open (tocode, fromcode); + iconv_t conv; + struct hmapx_node *node; + size_t hash ; + char *key = alloca (strlen (tocode) + strlen (fromcode) + 2); + + strcpy (key, tocode); + strcat (key, "\n"); /* hopefully no encoding names contain '\n' */ + strcat (key, fromcode); - /* 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 == conv && 0 != strcmp (tocode, fromcode)) + hash = hsh_hash_string (key); + + node = hmapx_first_with_hash (&map, hash); + + if (!node) + { + conv = iconv_open (tocode, fromcode); + + /* 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 == 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)); + } + + hmapx_insert (&map, conv, hash); + } + else { - const int err = errno; - fprintf (stderr, - "Warning: cannot create a convertor for \"%s\" to \"%s\": %s\n", - fromcode, tocode, strerror (err)); + conv = hmapx_node_data (node); } return conv; @@ -66,7 +89,8 @@ create_iconv (const char* tocode, const char* fromcode) The returned string must be freed when no longer required. */ char * -recode_string (enum conv_id how, const char *text, int length) +recode_string (const char *to, const char *from, + const char *text, int length) { char *outbuf = 0; size_t outbufferlength; @@ -74,6 +98,7 @@ recode_string (enum conv_id how, const char *text, int length) 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 = '?'; @@ -84,10 +109,12 @@ recode_string (enum conv_id how, const char *text, int length) if ( length == -1 ) length = strlen(text); - assert (how < n_CONV); - if (convertor[how] == (iconv_t) -1) - return xstrndup (text, length); + if (to == NULL) + to = default_encoding; + + if (from == NULL) + from = default_encoding; for ( outbufferlength = 1 ; outbufferlength != 0; outbufferlength <<= 1 ) if ( outbufferlength > length) @@ -99,9 +126,12 @@ recode_string (enum conv_id how, const char *text, int length) outbytes = outbufferlength; inbytes = length; + + conv = create_iconv (to, from); + do { const char *ip = text; - result = iconv (convertor[how], (ICONV_CONST char **) &text, &inbytes, + result = iconv (conv, (ICONV_CONST char **) &text, &inbytes, &op, &outbytes); if ( -1 == result ) @@ -152,79 +182,113 @@ recode_string (enum conv_id how, const char *text, int length) } -/* Returns the current PSPP locale */ +void +i18n_init (void) +{ +#if ENABLE_NLS + setlocale (LC_CTYPE, ""); +#if HAVE_LC_MESSAGES + setlocale (LC_MESSAGES, ""); +#endif +#if HAVE_LC_PAPER + setlocale (LC_PAPER, ""); +#endif + bindtextdomain (PACKAGE, locale_dir); + textdomain (PACKAGE); +#endif /* ENABLE_NLS */ + + assert (default_encoding == NULL); + default_encoding = strdup (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) +set_default_encoding (const char *enc) { - char *current_locale; - char *current_charset; + free (default_encoding); + default_encoding = strdup (enc); +} - free(locale); - locale = strdup(l); - current_locale = strdup (setlocale (LC_CTYPE, 0)); - current_charset = strdup (locale_charset ()); - setlocale (LC_CTYPE, locale); +/* 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 = strdup (setlocale (LC_CTYPE, NULL)); - free (charset); - charset = strdup (locale_charset ()); - setlocale (LC_CTYPE, current_locale); + setlocale (LC_CTYPE, "C"); + c_encoding = strdup (locale_charset ()); - iconv_close (convertor[CONV_PSPP_TO_UTF8]); - convertor[CONV_PSPP_TO_UTF8] = create_iconv ("UTF-8", charset); + setlocale (LC_CTYPE, loc); + loc_encoding = strdup (locale_charset ()); - iconv_close (convertor[CONV_SYSTEM_TO_PSPP]); - convertor[CONV_SYSTEM_TO_PSPP] = create_iconv (charset, current_charset); - iconv_close (convertor[CONV_UTF8_TO_PSPP]); - convertor[CONV_UTF8_TO_PSPP] = create_iconv (charset, "UTF-8"); + if ( 0 == strcmp (loc_encoding, c_encoding)) + { + ok = false; + } - free (current_locale); - free (current_charset); -} -void -i18n_init (void) -{ - assert (!locale) ; - locale = strdup (setlocale (LC_CTYPE, NULL)); + setlocale (LC_CTYPE, tmp); - setlocale (LC_CTYPE, locale); + free (tmp); + + if (ok) + { + free (default_encoding); + default_encoding = loc_encoding; + } + else + free (loc_encoding); - free (charset); - charset = strdup (locale_charset ()); + free (c_encoding); - convertor[CONV_PSPP_TO_UTF8] = create_iconv ("UTF-8", charset); - convertor[CONV_SYSTEM_TO_PSPP] = create_iconv (charset, charset); - convertor[CONV_UTF8_TO_PSPP] = create_iconv (charset, "UTF-8"); + return ok; } - void i18n_done (void) { - int i; - free (locale); - locale = 0; + struct hmapx_node *node; + iconv_t conv; + HMAPX_FOR_EACH (conv, node, &map) + iconv_close (conv); - for(i = 0 ; i < n_CONV; ++i ) - { - if ( (iconv_t) -1 == convertor[i] ) - continue; - iconv_close (convertor[i]); - } + hmapx_destroy (&map); + + free (default_encoding); + default_encoding = NULL; } +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; +} + /* Return the system local's idea of the decimal seperator character */