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-rw-r--r--e-util/e-iconv.c451
1 files changed, 0 insertions, 451 deletions
diff --git a/e-util/e-iconv.c b/e-util/e-iconv.c
deleted file mode 100644
index c22c9915b2..0000000000
--- a/e-util/e-iconv.c
+++ /dev/null
@@ -1,451 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
- *
- * Copyright (C) 2001 Ximian Inc.
- * Authors: Michael Zucchi <notzed@ximian.com>
- * Jeffery Steadfast <fejj@ximian.com>
- *
- * This 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 2 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.
- *
- * You should have received a copy of the GNU General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <string.h>
-#include <stdio.h>
-
-#include <glib.h>
-#include "e-iconv.h"
-
-#include <locale.h>
-
-#ifdef HAVE_ALLOCA_H
-#include <alloca.h>
-#endif
-
-#ifdef HAVE_CODESET
-#include <langinfo.h>
-#endif
-
-/* FIXME: Use feature test */
-#ifndef __sun__
-#define ICONV_ISO_NEEDS_DASH (1)
-#endif
-
-#define cd(x)
-
-#ifdef G_THREADS_ENABLED
-static GStaticMutex lock = G_STATIC_MUTEX_INIT;
-#define LOCK() g_static_mutex_lock(&lock)
-#define UNLOCK() g_static_mutex_unlock(&lock)
-#else
-#define LOCK()
-#define UNLOCK()
-#endif
-
-typedef struct _EDListNode {
- struct _EDListNode *next;
- struct _EDListNode *prev;
-} EDListNode;
-
-typedef struct _EDList {
- struct _EDListNode *head;
- struct _EDListNode *tail;
- struct _EDListNode *tailpred;
-} EDList;
-
-#define E_DLIST_INITIALISER(l) { (EDListNode *)&l.tail, 0, (EDListNode *)&l.head }
-
-struct _iconv_cache_node {
- struct _iconv_cache_node *next;
- struct _iconv_cache_node *prev;
-
- struct _iconv_cache *parent;
-
- int busy;
- iconv_t ip;
-};
-
-struct _iconv_cache {
- struct _iconv_cache *next;
- struct _iconv_cache *prev;
-
- char *conv;
-
- EDList open; /* stores iconv_cache_nodes, busy ones up front */
-};
-
-#define E_ICONV_CACHE_SIZE (16)
-
-static EDList iconv_cache_list;
-static GHashTable *iconv_cache;
-static GHashTable *iconv_cache_open;
-static unsigned int iconv_cache_size = 0;
-
-static GHashTable *iconv_charsets = NULL;
-static const char *locale_charset = NULL;
-
-struct {
- char *charset;
- char *iconv_name;
-} known_iconv_charsets[] = {
-#if 0
- /* charset name, iconv-friendly charset name */
- { "iso-8859-1", "iso-8859-1" },
- { "iso8859-1", "iso-8859-1" },
- /* the above mostly serves as an example for iso-style charsets,
- but we have code that will populate the iso-*'s if/when they
- show up in e_iconv_charset_name() so I'm
- not going to bother putting them all in here... */
- { "windows-cp1251", "cp1251" },
- { "windows-1251", "cp1251" },
- { "cp1251", "cp1251" },
- /* the above mostly serves as an example for windows-style
- charsets, but we have code that will parse and convert them
- to their cp#### equivalents if/when they show up in
- e_iconv_charset_name() so I'm not going to bother
- putting them all in here either... */
-#endif
- /* charset name (lowercase!), iconv-friendly name (sometimes case sensitive) */
- { "utf-8", "UTF-8" },
-
- /* 10646 is a special case, its usually UCS-2 big endian */
- /* This might need some checking but should be ok for solaris/linux */
- { "iso-10646-1", "UCS-2BE" },
- { "iso_10646-1", "UCS-2BE" },
- { "iso10646-1", "UCS-2BE" },
- { "iso-10646", "UCS-2BE" },
- { "iso_10646", "UCS-2BE" },
- { "iso10646", "UCS-2BE" },
-
- { "ks_c_5601-1987", "EUC-KR" },
-
- /* FIXME: Japanese/Korean/Chinese stuff needs checking */
- { "euckr-0", "EUC-KR" },
- { "big5-0", "BIG5" },
- { "big5.eten-0", "BIG5" },
- { "big5hkscs-0", "BIG5HKCS" },
- { "gb2312-0", "gb2312" },
- { "gb2312.1980-0", "gb2312" },
- { "gb18030-0", "gb18030" },
- { "gbk-0", "GBK" },
-
- { "eucjp-0", "eucJP" },
- { "ujis-0", "ujis" },
- { "jisx0208.1983-0","SJIS" },
- { "jisx0212.1990-0","SJIS" },
- { NULL, NULL }
-};
-
-
-
-/* Another copy of this trivial list implementation
- Why? This stuff gets called a lot (potentially), should run fast,
- and g_list's are f@@#$ed up to make this a hassle */
-static void e_dlist_init(EDList *v)
-{
- v->head = (EDListNode *)&v->tail;
- v->tail = 0;
- v->tailpred = (EDListNode *)&v->head;
-}
-
-static EDListNode *e_dlist_addhead(EDList *l, EDListNode *n)
-{
- n->next = l->head;
- n->prev = (EDListNode *)&l->head;
- l->head->prev = n;
- l->head = n;
- return n;
-}
-
-static EDListNode *e_dlist_addtail(EDList *l, EDListNode *n)
-{
- n->next = (EDListNode *)&l->tail;
- n->prev = l->tailpred;
- l->tailpred->next = n;
- l->tailpred = n;
- return n;
-}
-
-static EDListNode *e_dlist_remove(EDListNode *n)
-{
- n->next->prev = n->prev;
- n->prev->next = n->next;
- return n;
-}
-
-/* NOTE: Owns the lock on return if keep is TRUE ! */
-static void
-e_iconv_init(int keep)
-{
- char *from, *to, *locale;
- int i;
-
- LOCK();
-
- if (iconv_charsets != NULL) {
- if (!keep)
- UNLOCK();
- return;
- }
-
- iconv_charsets = g_hash_table_new(g_str_hash, g_str_equal);
-
- for (i = 0; known_iconv_charsets[i].charset != NULL; i++) {
- from = g_strdup(known_iconv_charsets[i].charset);
- to = g_strdup(known_iconv_charsets[i].iconv_name);
- g_strdown(from);
- g_hash_table_insert(iconv_charsets, from, to);
- }
-
- e_dlist_init(&iconv_cache_list);
- iconv_cache = g_hash_table_new(g_str_hash, g_str_equal);
- iconv_cache_open = g_hash_table_new(NULL, NULL);
-
- locale = setlocale (LC_ALL, NULL);
-
- if (!locale || !strcmp (locale, "C") || !strcmp (locale, "POSIX")) {
- /* The locale "C" or "POSIX" is a portable locale; its
- * LC_CTYPE part corresponds to the 7-bit ASCII character
- * set.
- */
-
- locale_charset = NULL;
- } else {
-#ifdef HAVE_CODESET
- locale_charset = g_strdup(nl_langinfo(CODESET));
- g_strdown((char *)locale_charset);
-#else
- /* A locale name is typically of the form language[_terri-
- * tory][.codeset][@modifier], where language is an ISO 639
- * language code, territory is an ISO 3166 country code, and
- * codeset is a character set or encoding identifier like
- * ISO-8859-1 or UTF-8.
- */
- char *codeset, *p;
-
- codeset = strchr (locale, '.');
- if (codeset) {
- codeset++;
-
- /* ; is a hack for debian systems and / is a hack for Solaris systems */
- for (p = codeset; *p && !strchr ("@;/", *p); p++);
- locale_charset = g_strndup (codeset, p - codeset);
- g_strdown (locale_charset);
- } else {
- /* charset unknown */
- locale_charset = NULL;
- }
-#endif
- }
-
- if (!keep)
- UNLOCK();
-}
-
-const char *e_iconv_charset_name(const char *charset)
-{
- char *name, *ret, *tmp;
-
- if (charset == NULL)
- return NULL;
-
- name = alloca(strlen(charset)+1);
- strcpy(name, charset);
- g_strdown(name);
-
- e_iconv_init(TRUE);
- ret = g_hash_table_lookup(iconv_charsets, name);
- if (ret != NULL) {
- UNLOCK();
- return ret;
-
-
- }
-
- /* Unknown, try canonicalise some basic charset types to something that should work */
- if (strncmp(name, "iso", 3) == 0) {
- /* Convert iso-nnnn-n or isonnnn-n or iso_nnnn-n to iso-nnnn-n or isonnnn-n */
- tmp = name+3;
- if (tmp[0] == '_' || tmp[0] == '-')
- tmp++;
-#ifdef ICONV_ISO_NEEDS_DASH
- ret = g_strdup_printf("ISO-%s", tmp);
-#else
- ret = g_strdup_printf("ISO%s", tmp);
-#endif
- } else if (strncmp(name, "windows-", 8) == 0) {
- /* Convert windows-nnnnn or windows-cpnnnnn to cpnnnn */
- tmp = name+8;
- if (!strncmp(tmp, "cp", 2))
- tmp+=2;
- ret = g_strdup_printf("CP%s", tmp);
- } else if (strncmp(name, "microsoft-", 10) == 0) {
- /* Convert microsoft-nnnnn or microsoft-cpnnnnn to cpnnnn */
- tmp = name+10;
- if (!strncmp(tmp, "cp", 2))
- tmp+=2;
- ret = g_strdup_printf("CP%s", tmp);
- } else {
- /* Just assume its ok enough as is, case and all */
- ret = g_strdup(charset);
- }
-
- g_hash_table_insert(iconv_charsets, g_strdup(name), ret);
- UNLOCK();
-
- return ret;
-}
-
-static void
-flush_entry(struct _iconv_cache *ic)
-{
- struct _iconv_cache_node *in, *nn;
-
- in = (struct _iconv_cache_node *)ic->open.head;
- nn = in->next;
- while (nn) {
- if (in->ip != (iconv_t)-1) {
- g_hash_table_remove(iconv_cache_open, in->ip);
- iconv_close(in->ip);
- }
- g_free(in);
- in = nn;
- nn = in->next;
- }
- g_free(ic->conv);
- g_free(ic);
-}
-
-/* This should run pretty quick, its called a lot */
-iconv_t e_iconv_open(const char *oto, const char *ofrom)
-{
- const char *to, *from;
- char *tofrom;
- struct _iconv_cache *ic;
- struct _iconv_cache_node *in;
- iconv_t ip;
-
- if (oto == NULL || ofrom == NULL)
- return (iconv_t)-1;
-
- to = e_iconv_charset_name (oto);
- from = e_iconv_charset_name (ofrom);
- tofrom = alloca(strlen(to) +strlen(from) + 2);
- sprintf(tofrom, "%s%%%s", to, from);
-
- LOCK();
-
- ic = g_hash_table_lookup(iconv_cache, tofrom);
- if (ic) {
- e_dlist_remove((EDListNode *)ic);
- } else {
- struct _iconv_cache *last = (struct _iconv_cache *)iconv_cache_list.tailpred;
- struct _iconv_cache *prev;
-
- prev = last->prev;
- while (prev && iconv_cache_size > E_ICONV_CACHE_SIZE) {
- in = (struct _iconv_cache_node *)last->open.head;
- if (in->next && !in->busy) {
- cd(printf("Flushing iconv converter '%s'\n", last->conv));
- e_dlist_remove((EDListNode *)last);
- g_hash_table_remove(iconv_cache, last->conv);
- flush_entry(last);
- iconv_cache_size--;
- }
- last = prev;
- prev = last->prev;
- }
-
- iconv_cache_size++;
-
- ic = g_malloc(sizeof(*ic));
- e_dlist_init(&ic->open);
- ic->conv = g_strdup(tofrom);
- g_hash_table_insert(iconv_cache, ic->conv, ic);
-
- cd(printf("Creating iconv converter '%s'\n", ic->conv));
- }
- e_dlist_addhead(&iconv_cache_list, (EDListNode *)ic);
-
- /* If we have a free iconv, use it */
- in = (struct _iconv_cache_node *)ic->open.tailpred;
- if (in->prev && !in->busy) {
- cd(printf("using existing iconv converter '%s'\n", ic->conv));
- ip = in->ip;
- if (ip != (iconv_t)-1) {
- /* work around some broken iconv implementations
- * that die if the length arguments are NULL
- */
- size_t buggy_iconv = 0;
-
- /* resets the converter */
- iconv(ip, NULL, &buggy_iconv, NULL, &buggy_iconv);
- in->busy = TRUE;
- e_dlist_remove((EDListNode *)in);
- e_dlist_addhead(&ic->open, (EDListNode *)in);
- }
- } else {
- cd(printf("creating new iconv converter '%s'\n", ic->conv));
- ip = iconv_open(to, from);
- in = g_malloc(sizeof(*in));
- in->ip = ip;
- in->parent = ic;
- e_dlist_addhead(&ic->open, (EDListNode *)in);
- if (ip != (iconv_t)-1) {
- g_hash_table_insert(iconv_cache_open, ip, in);
- in->busy = TRUE;
- } else {
- g_warning("Could not open converter for '%s' to '%s' charset", from, to);
- in->busy = FALSE;
- }
- }
-
- UNLOCK();
-
- return ip;
-}
-
-void
-e_iconv_close(iconv_t ip)
-{
- struct _iconv_cache_node *in;
-
- if (ip == (iconv_t)-1)
- return;
-
- LOCK();
- in = g_hash_table_lookup(iconv_cache_open, ip);
- if (in) {
- cd(printf("closing iconv converter '%s'\n", in->parent->conv));
- e_dlist_remove((EDListNode *)in);
- in->busy = FALSE;
- e_dlist_addtail(&in->parent->open, (EDListNode *)in);
- } else {
- g_warning("trying to close iconv i dont know about: %p", ip);
- iconv_close(ip);
- }
- UNLOCK();
-
-}
-
-const char *e_iconv_locale_charset(void)
-{
- e_iconv_init(FALSE);
-
- return locale_charset;
-}
-
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