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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* e-iconv.c
* Copyright 2000, 2001, Ximian, Inc.
*
* Authors:
* Michael Zucchi <notzed@ximian.com>
* Jeffery Stedfast <fejj@ximian.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License, version 2, as published by the Free Software Foundation.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <glib.h>
#include "e-iconv.h"
#include <locale.h>
#ifdef HAVE_CODESET
#include <langinfo.h>
#endif
#include "iconv-detect.h"
#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 char *locale_charset = NULL;
static char *locale_lang = 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" },
{ "5601", "EUC-KR" },
{ "zh_TW-euc", "EUC-TW" },
{ "zh_CN.euc", "gb2312" },
{ "zh_TW-big5", "BIG5" },
{ "euc-cn", "gb2312" },
{ "big5-0", "BIG5" },
{ "big5.eten-0", "BIG5" },
{ "big5hkscs-0", "BIG5HKSCS" },
{ "gb2312-0", "gb2312" },
{ "gb2312.1980-0", "gb2312" },
{ "gb-2312", "gb2312" },
{ "gb18030-0", "gb18030" },
{ "gbk-0", "GBK" },
{ "eucjp-0", "eucJP" },
{ "ujis-0", "ujis" },
{ "jisx0208.1983-0","SJIS" },
{ "jisx0212.1990-0","SJIS" },
{ "pck", "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;
}
/* fucking glib... */
static const char *
e_strdown (char *str)
{
register char *s = str;
while (*s) {
if (*s >= 'A' && *s <= 'Z')
*s += 0x20;
s++;
}
return str;
}
static const char *
e_strup (char *str)
{
register char *s = str;
while (*s) {
if (*s >= 'a' && *s <= 'z')
*s -= 0x20;
s++;
}
return str;
}
static void
locale_parse_lang (const char *locale)
{
char *codeset, *lang;
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