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spell checker support for multiple languages
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berkeviktor@aol.com
301
src/fe-gtk/sexy-iso-codes.c
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301
src/fe-gtk/sexy-iso-codes.c
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/*
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* Copyright (C) 2005 Nathan Fredrickson
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* Borrowed from Galeon, renamed, and simplified to only use iso-codes with no
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* fallback method.
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*
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* Copyright (C) 2004 Christian Persch
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* Copyright (C) 2004 Crispin Flowerday
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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*/
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#include "../../config.h"
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#include "sexy-iso-codes.h"
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#include <glib/gi18n.h>
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#include <string.h>
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#include <libxml/xmlreader.h>
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static GHashTable *iso_639_table = NULL;
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static GHashTable *iso_3166_table = NULL;
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#define ISO_639_DOMAIN "iso_639"
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#define ISO_3166_DOMAIN "iso_3166"
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#ifdef HAVE_ISO_CODES
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#define ISOCODESLOCALEDIR "/share/locale"
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static void
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read_iso_639_entry (xmlTextReaderPtr reader,
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GHashTable *table)
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{
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xmlChar *code, *name;
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code = xmlTextReaderGetAttribute (reader, (const xmlChar *) "iso_639_1_code");
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name = xmlTextReaderGetAttribute (reader, (const xmlChar *) "name");
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/* Get iso-639-2 code */
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if (code == NULL || code[0] == '\0')
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{
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xmlFree (code);
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/* FIXME: use the 2T or 2B code? */
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code = xmlTextReaderGetAttribute (reader, (const xmlChar *) "iso_639_2T_code");
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}
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if (code != NULL && code[0] != '\0' && name != NULL && name[0] != '\0')
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{
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g_hash_table_insert (table, code, name);
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}
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else
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{
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xmlFree (code);
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xmlFree (name);
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}
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}
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static void
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read_iso_3166_entry (xmlTextReaderPtr reader,
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GHashTable *table)
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{
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xmlChar *code, *name;
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code = xmlTextReaderGetAttribute (reader, (const xmlChar *) "alpha_2_code");
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name = xmlTextReaderGetAttribute (reader, (const xmlChar *) "name");
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if (code != NULL && code[0] != '\0' && name != NULL && name[0] != '\0')
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{
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char *lcode;
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lcode = g_ascii_strdown ((char *) code, -1);
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xmlFree (code);
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g_hash_table_insert (table, lcode, name);
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}
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else
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{
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xmlFree (code);
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xmlFree (name);
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}
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}
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typedef enum
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{
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STATE_START,
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STATE_STOP,
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STATE_ENTRIES,
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} ParserState;
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static gboolean
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load_iso_entries (int iso,
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GFunc read_entry_func,
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gpointer user_data)
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{
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xmlTextReaderPtr reader;
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ParserState state = STATE_START;
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xmlChar iso_entries[32], iso_entry[32];
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char *filename;
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int ret = -1;
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filename = g_strdup_printf (".\\share\\xml\\iso-codes\\iso_%d.xml", iso);
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reader = xmlNewTextReaderFilename (filename);
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if (reader == NULL) goto out;
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xmlStrPrintf (iso_entries, sizeof (iso_entries),
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(xmlChar *)"iso_%d_entries", iso);
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xmlStrPrintf (iso_entry, sizeof (iso_entry),
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(xmlChar *)"iso_%d_entry", iso);
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ret = xmlTextReaderRead (reader);
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while (ret == 1)
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{
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const xmlChar *tag;
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xmlReaderTypes type;
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tag = xmlTextReaderConstName (reader);
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type = xmlTextReaderNodeType (reader);
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if (state == STATE_ENTRIES &&
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type == XML_READER_TYPE_ELEMENT &&
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xmlStrEqual (tag, iso_entry))
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{
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read_entry_func (reader, user_data);
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}
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else if (state == STATE_START &&
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type == XML_READER_TYPE_ELEMENT &&
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xmlStrEqual (tag, iso_entries))
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{
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state = STATE_ENTRIES;
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}
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else if (state == STATE_ENTRIES &&
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type == XML_READER_TYPE_END_ELEMENT &&
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xmlStrEqual (tag, iso_entries))
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{
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state = STATE_STOP;
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}
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else if (type == XML_READER_TYPE_SIGNIFICANT_WHITESPACE ||
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type == XML_READER_TYPE_WHITESPACE ||
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type == XML_READER_TYPE_TEXT ||
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type == XML_READER_TYPE_COMMENT)
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{
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/* eat it */
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}
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else
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{
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/* ignore it */
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}
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ret = xmlTextReaderRead (reader);
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}
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xmlFreeTextReader (reader);
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out:
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if (ret < 0 || state != STATE_STOP)
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{
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/* This is not critical, we will fallback to our own code */
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g_free (filename);
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return FALSE;
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}
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g_free (filename);
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return TRUE;
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}
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#endif /* HAVE_ISO_CODES */
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static void
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ensure_iso_codes_initialised (void)
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{
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static gboolean initialised = FALSE;
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if (initialised == TRUE)
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{
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return;
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}
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initialised = TRUE;
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#if defined (ENABLE_NLS) && defined (HAVE_ISO_CODES)
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bindtextdomain (ISO_639_DOMAIN, ISOCODESLOCALEDIR);
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bind_textdomain_codeset (ISO_639_DOMAIN, "UTF-8");
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bindtextdomain(ISO_3166_DOMAIN, ISOCODESLOCALEDIR);
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bind_textdomain_codeset (ISO_3166_DOMAIN, "UTF-8");
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#endif
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iso_639_table = g_hash_table_new_full (g_str_hash, g_str_equal,
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(GDestroyNotify) xmlFree,
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(GDestroyNotify) xmlFree);
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iso_3166_table = g_hash_table_new_full (g_str_hash, g_str_equal,
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(GDestroyNotify) g_free,
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(GDestroyNotify) xmlFree);
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#ifdef HAVE_ISO_CODES
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load_iso_entries (639, (GFunc) read_iso_639_entry, iso_639_table);
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load_iso_entries (3166, (GFunc) read_iso_3166_entry, iso_3166_table);
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#endif
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}
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static char *
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get_iso_name_for_lang_code (const char *code)
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{
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char **str;
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char *name = NULL;
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const char *langname, *localename;
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int len;
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str = g_strsplit (code, "_", -1);
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/* count the entries */
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for (len = 0; str[len]; len++ ) /* empty */;
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g_return_val_if_fail (len != 0, NULL);
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langname = (const char *) g_hash_table_lookup (iso_639_table, str[0]);
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if (len == 1 && langname != NULL)
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{
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name = g_strdup (dgettext (ISO_639_DOMAIN, langname));
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}
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else if (len == 2 && langname != NULL)
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{
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localename = (const char *) g_hash_table_lookup (iso_3166_table, str[1]);
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if (localename != NULL)
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{
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/* translators: the first %s is the language name, and the
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* second %s is the locale name. Example:
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* "French (France)
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*
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* Also: The text before the "|" is context to help you decide on
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* the correct translation. You MUST OMIT it in the translated string.
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*/
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name = g_strdup_printf (Q_("language|%s (%s)"),
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dgettext (ISO_639_DOMAIN, langname),
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dgettext (ISO_3166_DOMAIN, localename));
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}
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else
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{
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name = g_strdup_printf (Q_("language|%s (%s)"),
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dgettext (ISO_639_DOMAIN, langname), str[1]);
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}
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}
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g_strfreev (str);
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return name;
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}
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/**
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* gtkspell_iso_codes_lookup_name_for_code:
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* @code: A language code, e.g. en_CA
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*
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* Looks up a name to display to the user for a language code,
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* this might use the iso-codes package if support was compiled
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* in, and it is available
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*
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* Returns: the UTF-8 string to display to the user, or NULL if
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* a name for the code could not be found
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*/
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char *
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gtkspell_iso_codes_lookup_name_for_code (const char *code)
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{
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char * lcode;
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char * ret;
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g_return_val_if_fail (code != NULL, NULL);
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ensure_iso_codes_initialised ();
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lcode = g_ascii_strdown (code, -1);
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ret = get_iso_name_for_lang_code (lcode);
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g_free (lcode);
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return ret;
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}
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