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322 lines
8.1 KiB
C
322 lines
8.1 KiB
C
#include "config.h"
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#include <stdlib.h>
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#include <stdio.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <string.h>
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#include <errno.h>
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#include <locale.h>
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#include <sys/stat.h>
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#include <glib.h>
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#include <glib/gi18n.h>
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#include <glib/gstdio.h>
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#include <hb-ot.h>
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#include "language-names.h"
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#ifdef G_OS_WIN32
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#else
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#ifndef ISO_CODES_PREFIX
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#define ISO_CODES_PREFIX "/usr"
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#endif
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#define ISO_CODES_DATADIR ISO_CODES_PREFIX "/share/xml/iso-codes"
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#define ISO_CODES_LOCALESDIR ISO_CODES_PREFIX "/share/locale"
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#endif
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static GHashTable *language_map;
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#ifdef G_OS_WIN32
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/* if we are using native Windows use native Windows API for language names */
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static BOOL CALLBACK
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get_win32_all_locales_scripts (LPWSTR locale_w, DWORD flags, LPARAM param)
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{
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wchar_t *langname_w = NULL;
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wchar_t locale_abbrev_w[9];
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gchar *langname, *locale_abbrev, *locale;
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gint i;
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const LCTYPE iso639_lctypes[] = { LOCALE_SISO639LANGNAME, LOCALE_SISO639LANGNAME2 };
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GHashTable *ht_scripts_langs = (GHashTable *) param;
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PangoLanguage *lang;
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gint langname_size, locale_abbrev_size;
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langname_size = GetLocaleInfoEx (locale_w, LOCALE_SLOCALIZEDDISPLAYNAME, langname_w, 0);
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if (langname_size == 0)
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return FALSE;
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langname_w = g_new0 (wchar_t, langname_size);
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if (langname_size == 0)
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return FALSE;
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GetLocaleInfoEx (locale_w, LOCALE_SLOCALIZEDDISPLAYNAME, langname_w, langname_size);
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langname = g_utf16_to_utf8 (langname_w, -1, NULL, NULL, NULL);
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locale = g_utf16_to_utf8 (locale_w, -1, NULL, NULL, NULL);
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lang = pango_language_from_string (locale);
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if (g_hash_table_lookup (ht_scripts_langs, lang) == NULL)
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g_hash_table_insert (ht_scripts_langs, lang, langname);
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/*
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* Track 3+-letter ISO639-2/3 language codes as well (these have a max length of 9 including terminating NUL)
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* ISO639-2: iso639_lctypes[0] = LOCALE_SISO639LANGNAME
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* ISO639-3: iso639_lctypes[1] = LOCALE_SISO639LANGNAME2
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*/
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for (i = 0; i < 2; i++)
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{
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locale_abbrev_size = GetLocaleInfoEx (locale_w, iso639_lctypes[i], locale_abbrev_w, 0);
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if (locale_abbrev_size > 0)
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{
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GetLocaleInfoEx (locale_w, iso639_lctypes[i], locale_abbrev_w, locale_abbrev_size);
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locale_abbrev = g_utf16_to_utf8 (locale_abbrev_w, -1, NULL, NULL, NULL);
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lang = pango_language_from_string (locale_abbrev);
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if (g_hash_table_lookup (ht_scripts_langs, lang) == NULL)
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g_hash_table_insert (ht_scripts_langs, lang, langname);
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g_free (locale_abbrev);
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}
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}
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g_free (locale);
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g_free (langname_w);
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return TRUE;
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}
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#else /* non-Windows */
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static char *
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get_first_item_in_semicolon_list (const char *list)
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{
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char **items;
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char *item;
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items = g_strsplit (list, "; ", 2);
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item = g_strdup (items[0]);
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g_strfreev (items);
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return item;
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}
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static char *
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capitalize_utf8_string (const char *str)
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{
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char first[8] = { 0 };
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if (!str)
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return NULL;
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g_unichar_to_utf8 (g_unichar_totitle (g_utf8_get_char (str)), first);
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return g_strconcat (first, g_utf8_offset_to_pointer (str, 1), NULL);
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}
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static char *
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get_display_name (const char *language)
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{
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const char *translated;
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char *tmp;
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char *name;
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translated = dgettext ("iso_639", language);
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tmp = get_first_item_in_semicolon_list (translated);
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name = capitalize_utf8_string (tmp);
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g_free (tmp);
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return name;
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}
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static void
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languages_parse_start_tag (GMarkupParseContext *ctx,
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const char *element_name,
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const char **attr_names,
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const char **attr_values,
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gpointer user_data,
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GError **error)
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{
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const char *ccode_longB;
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const char *ccode_longT;
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const char *ccode;
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const char *ccode_id;
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const char *lang_name;
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char *display_name;
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if (!(g_str_equal (element_name, "iso_639_entry") ||
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g_str_equal (element_name, "iso_639_3_entry")) ||
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attr_names == NULL ||
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attr_values == NULL)
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return;
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ccode = NULL;
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ccode_longB = NULL;
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ccode_longT = NULL;
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ccode_id = NULL;
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lang_name = NULL;
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while (*attr_names && *attr_values)
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{
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if (g_str_equal (*attr_names, "iso_639_1_code"))
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{
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if (**attr_values)
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{
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if (strlen (*attr_values) != 2)
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return;
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ccode = *attr_values;
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}
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}
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else if (g_str_equal (*attr_names, "iso_639_2B_code"))
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{
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if (**attr_values)
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{
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if (strlen (*attr_values) != 3)
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return;
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ccode_longB = *attr_values;
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}
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}
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else if (g_str_equal (*attr_names, "iso_639_2T_code"))
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{
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if (**attr_values)
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{
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if (strlen (*attr_values) != 3)
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return;
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ccode_longT = *attr_values;
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}
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}
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else if (g_str_equal (*attr_names, "id"))
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{
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if (**attr_values)
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{
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if (strlen (*attr_values) != 2 &&
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strlen (*attr_values) != 3)
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return;
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ccode_id = *attr_values;
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}
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}
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else if (g_str_equal (*attr_names, "name"))
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{
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lang_name = *attr_values;
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}
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++attr_names;
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++attr_values;
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}
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if (lang_name == NULL)
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return;
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display_name = get_display_name (lang_name);
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if (ccode != NULL)
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g_hash_table_insert (language_map,
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pango_language_from_string (ccode),
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g_strdup (display_name));
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if (ccode_longB != NULL)
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g_hash_table_insert (language_map,
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pango_language_from_string (ccode_longB),
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g_strdup (display_name));
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if (ccode_longT != NULL)
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g_hash_table_insert (language_map,
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pango_language_from_string (ccode_longT),
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g_strdup (display_name));
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if (ccode_id != NULL)
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g_hash_table_insert (language_map,
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pango_language_from_string (ccode_id),
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g_strdup (display_name));
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g_free (display_name);
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}
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static void
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languages_variant_init (const char *variant)
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{
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gboolean res;
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gsize buf_len;
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char *buf = NULL;
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char *filename = NULL;
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GError *error = NULL;
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bindtextdomain (variant, ISO_CODES_LOCALESDIR);
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bind_textdomain_codeset (variant, "UTF-8");
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error = NULL;
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filename = g_strconcat (ISO_CODES_DATADIR, "/", variant, ".xml", NULL);
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res = g_file_get_contents (filename, &buf, &buf_len, &error);
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if (res)
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{
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GMarkupParseContext *ctx = NULL;
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GMarkupParser parser = { languages_parse_start_tag, NULL, NULL, NULL, NULL };
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ctx = g_markup_parse_context_new (&parser, 0, NULL, NULL);
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g_free (error);
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error = NULL;
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res = g_markup_parse_context_parse (ctx, buf, buf_len, &error);
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g_free (ctx);
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if (!res)
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g_warning ("Failed to parse '%s': %s\n", filename, error->message);
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}
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else
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g_warning ("Failed to load '%s': %s\n", filename, error->message);
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g_clear_error (&error);
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g_free (filename);
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g_free (buf);
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}
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#endif
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static void
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languages_init (void)
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{
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if (language_map)
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return;
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language_map = g_hash_table_new_full (NULL, NULL, NULL, g_free);
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#ifdef G_OS_WIN32
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g_return_if_fail (EnumSystemLocalesEx (&get_win32_all_locales_scripts, LOCALE_ALL, (LPARAM) language_map, NULL));
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#else
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languages_variant_init ("iso_639");
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languages_variant_init ("iso_639_3");
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#endif
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}
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const char *
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get_language_name (PangoLanguage *language)
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{
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languages_init ();
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return (const char *) g_hash_table_lookup (language_map, language);
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}
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const char *
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get_language_name_for_tag (guint32 tag)
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{
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hb_language_t lang;
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const char *s;
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lang = hb_ot_tag_to_language (tag);
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s = hb_language_to_string (lang);
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if (strcmp (s, "und-fonipa") == 0)
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return "International Phonetic Alphabet";
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else if (strcmp (s, "und-fonnapa") == 0)
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return "North-American Phonetic Alphabet";
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else if (strcmp (s, "ro-md") == 0)
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return "Moldavian";
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return get_language_name (pango_language_from_string (s));
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}
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