/* Pango * pango-language.c: Language handling routines * * Copyright (C) 2000 Red Hat Software * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * 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. */ #include "config.h" #include #include #include #include #include #include "pango-language.h" #include "pango-impl-utils.h" #ifdef HAVE_CORE_TEXT #include #endif /* HAVE_CORE_TEXT */ /* We embed a private struct right *before* a where a PangoLanguage * * points to. */ typedef struct { gconstpointer lang_info; gconstpointer script_for_lang; int magic; /* Used for verification */ } PangoLanguagePrivate; #define PANGO_LANGUAGE_PRIVATE_MAGIC 0x0BE4DAD0 static void pango_language_private_init (PangoLanguagePrivate *priv) { priv->magic = PANGO_LANGUAGE_PRIVATE_MAGIC; priv->lang_info = (gconstpointer) -1; priv->script_for_lang = (gconstpointer) -1; } static PangoLanguagePrivate * pango_language_get_private (PangoLanguage *language) G_GNUC_CONST; static PangoLanguagePrivate * pango_language_get_private (PangoLanguage *language) { PangoLanguagePrivate *priv; if (!language) return NULL; priv = (PangoLanguagePrivate *) ((void *)((char *)language - sizeof (PangoLanguagePrivate))); if (G_UNLIKELY (priv->magic != PANGO_LANGUAGE_PRIVATE_MAGIC)) { g_critical ("Invalid PangoLanguage. Did you pass in a straight string instead of calling pango_language_from_string()?"); return NULL; } return priv; } #define LANGUAGE_SEPARATORS ";:, \t" static const char canon_map[256] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '-', 0, 0, '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 0, 0, 0, 0, 0, 0, '-', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 0, 0, 0, 0, '-', 0, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 0, 0, 0, 0, 0 }; static gboolean lang_equal (gconstpointer v1, gconstpointer v2) { const guchar *p1 = v1; const guchar *p2 = v2; while (canon_map[*p1] && canon_map[*p1] == canon_map[*p2]) { p1++, p2++; } return (canon_map[*p1] == canon_map[*p2]); } static guint lang_hash (gconstpointer key) { const guchar *p = key; guint h = 0; while (canon_map[*p]) { h = (h << 5) - h + canon_map[*p]; p++; } return h; } static PangoLanguage * pango_language_copy (PangoLanguage *language) { return language; /* language tags are const */ } static void pango_language_free (PangoLanguage *language G_GNUC_UNUSED) { return; /* nothing */ } /** * PangoLanguage: * * The #PangoLanguage structure is used to * represent a language. * * #PangoLanguage pointers can be efficiently * copied and compared with each other. */ G_DEFINE_BOXED_TYPE (PangoLanguage, pango_language, pango_language_copy, pango_language_free); /** * _pango_get_lc_ctype: * * Return the Unix-style locale string for the language currently in * effect. On Unix systems, this is the return value from * setlocale(LC_CTYPE, NULL), and the user can * affect this through the environment variables LC_ALL, LC_CTYPE or * LANG (checked in that order). The locale strings typically is in * the form lang_COUNTRY, where lang is an ISO-639 language code, and * COUNTRY is an ISO-3166 country code. For instance, sv_FI for * Swedish as written in Finland or pt_BR for Portuguese as written in * Brazil. * * On Windows, the C library doesn't use any such environment * variables, and setting them won't affect the behavior of functions * like ctime(). The user sets the locale through the Regional Options * in the Control Panel. The C library (in the setlocale() function) * does not use country and language codes, but country and language * names spelled out in English. * However, this function does check the above environment * variables, and does return a Unix-style locale string based on * either said environment variables or the thread's current locale. * * Return value: a dynamically allocated string, free with g_free(). */ static gchar * _pango_get_lc_ctype (void) { #ifdef G_OS_WIN32 /* Somebody might try to set the locale for this process using the * LANG or LC_ environment variables. The Microsoft C library * doesn't know anything about them. You set the locale in the * Control Panel. Setting these env vars won't have any affect on * locale-dependent C library functions like ctime(). But just for * kicks, do obey LC_ALL, LC_CTYPE and LANG in Pango. (This also makes * it easier to test GTK and Pango in various default languages, you * don't have to clickety-click in the Control Panel, you can simply * start the program with LC_ALL=something on the command line.) */ gchar *p; p = getenv ("LC_ALL"); if (p != NULL) return g_strdup (p); p = getenv ("LC_CTYPE"); if (p != NULL) return g_strdup (p); p = getenv ("LANG"); if (p != NULL) return g_strdup (p); return g_win32_getlocale (); #elif defined(HAVE_CORE_TEXT) CFArrayRef languages; CFStringRef language; gchar ret[16]; gchar *p; /* Take the same approach as done for Windows above. First we check * if somebody tried to set the locale through environment variables. */ p = getenv ("LC_ALL"); if (p != NULL) return g_strdup (p); p = getenv ("LC_CTYPE"); if (p != NULL) return g_strdup (p); p = getenv ("LANG"); if (p != NULL) return g_strdup (p); /* If the environment variables are not set, determine the locale * through the platform-native API. */ languages = CFLocaleCopyPreferredLanguages (); language = CFArrayGetValueAtIndex (languages, 0); if (!CFStringGetCString (language, ret, 16, kCFStringEncodingUTF8)) { CFRelease (languages); return g_strdup (setlocale (LC_CTYPE, NULL)); } CFRelease (languages); return g_strdup (ret); #else { gchar *lc_ctype = setlocale (LC_CTYPE, NULL); if (lc_ctype) return g_strdup (lc_ctype); else return g_strdup ("C"); } #endif } /** * pango_language_get_default: * * Returns the #PangoLanguage for the current locale of the process. * Note that this can change over the life of an application. * * On Unix systems, this is the return value is derived from * setlocale(LC_CTYPE, NULL), and the user can * affect this through the environment variables LC_ALL, LC_CTYPE or * LANG (checked in that order). The locale string typically is in * the form lang_COUNTRY, where lang is an ISO-639 language code, and * COUNTRY is an ISO-3166 country code. For instance, sv_FI for * Swedish as written in Finland or pt_BR for Portuguese as written in * Brazil. * * On Windows, the C library does not use any such environment * variables, and setting them won't affect the behavior of functions * like ctime(). The user sets the locale through the Regional Options * in the Control Panel. The C library (in the setlocale() function) * does not use country and language codes, but country and language * names spelled out in English. * However, this function does check the above environment * variables, and does return a Unix-style locale string based on * either said environment variables or the thread's current locale. * * Your application should call setlocale(LC_ALL, ""); * for the user settings to take effect. Gtk+ does this in its initialization * functions automatically (by calling gtk_set_locale()). * See man setlocale for more details. * * Return value: (transfer none): the default language as a * #PangoLanguage, must not be freed. * * Since: 1.16 **/ PangoLanguage * pango_language_get_default (void) { static PangoLanguage *result = NULL; /* MT-safe */ if (g_once_init_enter (&result)) { gchar *lc_ctype; PangoLanguage *lang; lc_ctype = _pango_get_lc_ctype (); lang = pango_language_from_string (lc_ctype); g_free (lc_ctype); g_once_init_leave (&result, lang); } return result; } /** * pango_language_from_string: * @language: (allow-none): a string representing a language tag, or %NULL * * Take a RFC-3066 format language tag as a string and convert it to a * #PangoLanguage pointer that can be efficiently copied (copy the * pointer) and compared with other language tags (compare the * pointer.) * * This function first canonicalizes the string by converting it to * lowercase, mapping '_' to '-', and stripping all characters other * than letters and '-'. * * Use pango_language_get_default() if you want to get the #PangoLanguage for * the current locale of the process. * * Return value: (transfer none) (nullable): an opaque pointer to a * #PangoLanguage structure, or %NULL if @language was * %NULL. The returned pointer will be valid forever * after, and should not be freed. **/ PangoLanguage * pango_language_from_string (const char *language) { G_LOCK_DEFINE_STATIC (lang_from_string); static GHashTable *hash = NULL; /* MT-safe */ PangoLanguagePrivate *priv; void *result; int len; char *p; if (language == NULL) return NULL; G_LOCK (lang_from_string); if (G_UNLIKELY (!hash)) hash = g_hash_table_new (lang_hash, lang_equal); else { result = g_hash_table_lookup (hash, language); if (result) goto out; } len = strlen (language); result = g_malloc0 (sizeof (PangoLanguagePrivate) + len + 1); g_assert (result); priv = (PangoLanguagePrivate *) result; result = ((char *)result) + sizeof (*priv); pango_language_private_init (priv); p = result; while ((*(p++) = canon_map[*(guchar *)language++])) ; g_hash_table_insert (hash, result, result); out: G_UNLOCK (lang_from_string); return (PangoLanguage *)result; } /** * pango_language_to_string: * @language: a language tag. * * Gets the RFC-3066 format string representing the given language tag. * * Returns: a string representing the language tag. This is owned by * Pango and should not be freed. */ const char * (pango_language_to_string) (PangoLanguage *language) { return pango_language_to_string (language); } /** * pango_language_matches: * @language: (nullable): a language tag (see pango_language_from_string()), * %NULL is allowed and matches nothing but '*' * @range_list: a list of language ranges, separated by ';', ':', * ',', or space characters. * Each element must either be '*', or a RFC 3066 language range * canonicalized as by pango_language_from_string() * * Checks if a language tag matches one of the elements in a list of * language ranges. A language tag is considered to match a range * in the list if the range is '*', the range is exactly the tag, * or the range is a prefix of the tag, and the character after it * in the tag is '-'. * * Return value: %TRUE if a match was found. **/ gboolean pango_language_matches (PangoLanguage *language, const char *range_list) { const char *lang_str = pango_language_to_string (language); const char *p = range_list; gboolean done = FALSE; while (!done) { const char *end = strpbrk (p, LANGUAGE_SEPARATORS); if (!end) { end = p + strlen (p); done = TRUE; } if (strncmp (p, "*", 1) == 0 || (lang_str && strncmp (lang_str, p, end - p) == 0 && (lang_str[end - p] == '\0' || lang_str[end - p] == '-'))) return TRUE; if (!done) p = end + 1; } return FALSE; } static int lang_compare_first_component (gconstpointer pa, gconstpointer pb) { const char *a = pa, *b = pb; unsigned int da, db; const char *p; p = strstr (a, "-"); da = p ? (unsigned int) (p - a) : strlen (a); p = strstr (b, "-"); db = p ? (unsigned int) (p - b) : strlen (b); return strncmp (a, b, MAX (da, db)); } /* Finds the best record for @language in an array of records. * Each record should start with the string representation of the language * code for the record (embedded, not a pointer), and the records must be * sorted on language code. */ static gconstpointer find_best_lang_match (PangoLanguage *language, gconstpointer records, guint num_records, guint record_size) { const char *lang_str; const char *record, *start, *end; if (language == NULL) return NULL; lang_str = pango_language_to_string (language); record = bsearch (lang_str, records, num_records, record_size, lang_compare_first_component); if (!record) return NULL; start = (const char *) records; end = start + num_records * record_size; /* find the best match among all those that have the same first-component */ /* go to the final one matching in the first component */ while (record < end - record_size && lang_compare_first_component (lang_str, record + record_size) == 0) record += record_size; /* go back, find which one matches completely */ while (start <= record && lang_compare_first_component (lang_str, record) == 0) { if (pango_language_matches (language, record)) return record; record -= record_size; } return NULL; } static gconstpointer find_best_lang_match_cached (PangoLanguage *language, gconstpointer *cache, gconstpointer records, guint num_records, guint record_size) { gconstpointer result; if (G_LIKELY (cache && *cache != (gconstpointer) -1)) return *cache; result = find_best_lang_match (language, records, num_records, record_size); if (cache) *cache = result; return result; } #define FIND_BEST_LANG_MATCH_CACHED(language, cache_key, records) \ find_best_lang_match_cached ((language), \ pango_language_get_private (language) ? \ &(pango_language_get_private (language)->cache_key) : NULL, \ records, \ G_N_ELEMENTS (records), \ sizeof (*records)); typedef struct { char lang[6]; guint16 offset; } LangInfo; /* Pure black magic, based on appendix of dsohowto.pdf */ #define POOLSTRFIELD(line) POOLSTRFIELD1(line) #define POOLSTRFIELD1(line) str##line struct _LangPoolStruct { char str0[1]; #define LANGUAGE(id, source, sample) char POOLSTRFIELD(__LINE__)[sizeof(sample)]; #include "pango-language-sample-table.h" #undef LANGUAGE }; static const union _LangPool { struct _LangPoolStruct lang_pool_struct; const char str[1]; } lang_pool = { { "", #define LANGUAGE(id, source, sample) sample, #include "pango-language-sample-table.h" #undef LANGUAGE } }; static const LangInfo lang_texts[] = { #define LANGUAGE(id, source, sample) {G_STRINGIFY(id), G_STRUCT_OFFSET(struct _LangPoolStruct, POOLSTRFIELD(__LINE__))}, #include "pango-language-sample-table.h" #undef LANGUAGE /* One extra entry with no final comma, to make it C89-happy */ {"~~", 0} }; /** * pango_language_get_sample_string: * @language: (nullable): a #PangoLanguage, or %NULL * * Get a string that is representative of the characters needed to * render a particular language. * * The sample text may be a pangram, but is not necessarily. It is chosen to * be demonstrative of normal text in the language, as well as exposing font * feature requirements unique to the language. It is suitable for use * as sample text in a font selection dialog. * * If @language is %NULL, the default language as found by * pango_language_get_default() is used. * * If Pango does not have a sample string for @language, the classic * "The quick brown fox..." is returned. This can be detected by * comparing the returned pointer value to that returned for (non-existent) * language code "xx". That is, compare to: * * pango_language_get_sample_string (pango_language_from_string ("xx")) * * * Return value: the sample string. This value is owned by Pango * and should not be freed. **/ const char * pango_language_get_sample_string (PangoLanguage *language) { const LangInfo *lang_info; if (!language) language = pango_language_get_default (); lang_info = FIND_BEST_LANG_MATCH_CACHED (language, lang_info, lang_texts); if (lang_info) return lang_pool.str + lang_info->offset; return "The quick brown fox jumps over the lazy dog."; } /* * From language to script */ #include "pango-script-lang-table.h" /** * pango_language_get_scripts: * @language: (allow-none): a #PangoLanguage, or %NULL * @num_scripts: (out caller-allocates) (allow-none): location to return number of scripts, * or %NULL * * Determines the scripts used to to write @language. * If nothing is known about the language tag @language, * or if @language is %NULL, then %NULL is returned. * The list of scripts returned starts with the script that the * language uses most and continues to the one it uses least. * * The value @num_script points at will be set to the number * of scripts in the returned array (or zero if %NULL is returned). * * Most languages use only one script for writing, but there are * some that use two (Latin and Cyrillic for example), and a few * use three (Japanese for example). Applications should not make * any assumptions on the maximum number of scripts returned * though, except that it is positive if the return value is not * %NULL, and it is a small number. * * The pango_language_includes_script() function uses this function * internally. * * Note: while the return value is declared as PangoScript, the * returned values are from the GUnicodeScript enumeration, which * may have more values. Callers need to handle unknown values. * * Return value: (array length=num_scripts) (nullable): An array of * #PangoScript values, with the number of entries in the array stored * in @num_scripts, or %NULL if Pango does not have any information * about this particular language tag (also the case if @language is * %NULL). The returned array is owned by Pango and should not be * modified or freed. * Since: 1.22 **/ const PangoScript * pango_language_get_scripts (PangoLanguage *language, int *num_scripts) { const PangoScriptForLang *script_for_lang; unsigned int j; script_for_lang = FIND_BEST_LANG_MATCH_CACHED (language, script_for_lang, pango_script_for_lang); if (!script_for_lang) { if (num_scripts) *num_scripts = 0; return NULL; } if (num_scripts) { for (j = 0; j < G_N_ELEMENTS (script_for_lang->scripts); j++) if (script_for_lang->scripts[j] == 0) break; g_assert (j > 0); *num_scripts = j; } return (const PangoScript *) script_for_lang->scripts; } /** * pango_language_includes_script: * @language: (nullable): a #PangoLanguage, or %NULL * @script: a #PangoScript * * Determines if @script is one of the scripts used to * write @language. The returned value is conservative; * if nothing is known about the language tag @language, * %TRUE will be returned, since, as far as Pango knows, * @script might be used to write @language. * * This routine is used in Pango's itemization process when * determining if a supplied language tag is relevant to * a particular section of text. It probably is not useful for * applications in most circumstances. * * This function uses pango_language_get_scripts() internally. * * Return value: %TRUE if @script is one of the scripts used * to write @language or if nothing is known about @language * (including the case that @language is %NULL), * %FALSE otherwise. * Since: 1.4 **/ gboolean pango_language_includes_script (PangoLanguage *language, PangoScript script) { const PangoScript *scripts; int num_scripts, j; /* copied from the one in pango-script.c */ #define REAL_SCRIPT(script) \ ((script) > PANGO_SCRIPT_INHERITED && (script) != PANGO_SCRIPT_UNKNOWN) if (!REAL_SCRIPT (script)) return TRUE; #undef REAL_SCRIPT scripts = pango_language_get_scripts (language, &num_scripts); if (!scripts) return TRUE; for (j = 0; j < num_scripts; j++) if (scripts[j] == script) return TRUE; return FALSE; } /* * From script to language */ static PangoLanguage ** parse_default_languages (void) { char *p, *p_copy; gboolean done = FALSE; GPtrArray *langs; p = getenv ("PANGO_LANGUAGE"); if (p == NULL) p = getenv ("LANGUAGE"); if (p == NULL) return NULL; p_copy = p = g_strdup (p); langs = g_ptr_array_new (); while (!done) { char *end = strpbrk (p, LANGUAGE_SEPARATORS); if (!end) { end = p + strlen (p); done = TRUE; } else *end = '\0'; /* skip empty languages, and skip the language 'C' */ if (p != end && !(p + 1 == end && *p == 'C')) { PangoLanguage *l = pango_language_from_string (p); g_ptr_array_add (langs, l); } if (!done) p = end + 1; } g_free (p_copy); return (PangoLanguage **) g_ptr_array_free (langs, FALSE); } static PangoLanguage * _pango_script_get_default_language (PangoScript script) { G_LOCK_DEFINE_STATIC (languages); static gboolean initialized = FALSE; /* MT-safe */ static PangoLanguage * const * languages = NULL; /* MT-safe */ static GHashTable *hash = NULL; /* MT-safe */ PangoLanguage *result, * const * p; G_LOCK (languages); if (G_UNLIKELY (!initialized)) { languages = parse_default_languages (); if (languages) hash = g_hash_table_new (NULL, NULL); initialized = TRUE; } if (!languages) { result = NULL; goto out; } if (g_hash_table_lookup_extended (hash, GINT_TO_POINTER (script), NULL, (gpointer *) (gpointer) &result)) goto out; for (p = languages; *p; p++) if (pango_language_includes_script (*p, script)) break; result = *p; g_hash_table_insert (hash, GINT_TO_POINTER (script), result); out: G_UNLOCK (languages); return result; } /** * pango_script_get_sample_language: * @script: a #PangoScript * * Given a script, finds a language tag that is reasonably * representative of that script. This will usually be the * most widely spoken or used language written in that script: * for instance, the sample language for %PANGO_SCRIPT_CYRILLIC * is ru (Russian), the sample language * for %PANGO_SCRIPT_ARABIC is ar. * * For some * scripts, no sample language will be returned because there * is no language that is sufficiently representative. The best * example of this is %PANGO_SCRIPT_HAN, where various different * variants of written Chinese, Japanese, and Korean all use * significantly different sets of Han characters and forms * of shared characters. No sample language can be provided * for many historical scripts as well. * * As of 1.18, this function checks the environment variables * PANGO_LANGUAGE and LANGUAGE (checked in that order) first. * If one of them is set, it is parsed as a list of language tags * separated by colons or other separators. This function * will return the first language in the parsed list that Pango * believes may use @script for writing. This last predicate * is tested using pango_language_includes_script(). This can * be used to control Pango's font selection for non-primary * languages. For example, a PANGO_LANGUAGE enviroment variable * set to "en:fa" makes Pango choose fonts suitable for Persian (fa) * instead of Arabic (ar) when a segment of Arabic text is found * in an otherwise non-Arabic text. The same trick can be used to * choose a default language for %PANGO_SCRIPT_HAN when setting * context language is not feasible. * * Return value: (nullable): a #PangoLanguage that is representative * of the script, or %NULL if no such language exists. * * Since: 1.4 **/ PangoLanguage * pango_script_get_sample_language (PangoScript script) { /* Note that in the following, we want * pango_language_includes_script() for the sample language * to include the script, so alternate orthographies * (Shavian for English, Osmanya for Somali, etc), typically * have no sample language */ static const char sample_languages[][4] = { "", /* PANGO_SCRIPT_COMMON */ "", /* PANGO_SCRIPT_INHERITED */ "ar", /* PANGO_SCRIPT_ARABIC */ "hy", /* PANGO_SCRIPT_ARMENIAN */ "bn", /* PANGO_SCRIPT_BENGALI */ /* Used primarily in Taiwan, but not part of the standard * zh-tw orthography */ "", /* PANGO_SCRIPT_BOPOMOFO */ "chr", /* PANGO_SCRIPT_CHEROKEE */ "cop", /* PANGO_SCRIPT_COPTIC */ "ru", /* PANGO_SCRIPT_CYRILLIC */ /* Deseret was used to write English */ "", /* PANGO_SCRIPT_DESERET */ "hi", /* PANGO_SCRIPT_DEVANAGARI */ "am", /* PANGO_SCRIPT_ETHIOPIC */ "ka", /* PANGO_SCRIPT_GEORGIAN */ "", /* PANGO_SCRIPT_GOTHIC */ "el", /* PANGO_SCRIPT_GREEK */ "gu", /* PANGO_SCRIPT_GUJARATI */ "pa", /* PANGO_SCRIPT_GURMUKHI */ "", /* PANGO_SCRIPT_HAN */ "ko", /* PANGO_SCRIPT_HANGUL */ "he", /* PANGO_SCRIPT_HEBREW */ "ja", /* PANGO_SCRIPT_HIRAGANA */ "kn", /* PANGO_SCRIPT_KANNADA */ "ja", /* PANGO_SCRIPT_KATAKANA */ "km", /* PANGO_SCRIPT_KHMER */ "lo", /* PANGO_SCRIPT_LAO */ "en", /* PANGO_SCRIPT_LATIN */ "ml", /* PANGO_SCRIPT_MALAYALAM */ "mn", /* PANGO_SCRIPT_MONGOLIAN */ "my", /* PANGO_SCRIPT_MYANMAR */ /* Ogham was used to write old Irish */ "", /* PANGO_SCRIPT_OGHAM */ "", /* PANGO_SCRIPT_OLD_ITALIC */ "or", /* PANGO_SCRIPT_ORIYA */ "", /* PANGO_SCRIPT_RUNIC */ "si", /* PANGO_SCRIPT_SINHALA */ "syr", /* PANGO_SCRIPT_SYRIAC */ "ta", /* PANGO_SCRIPT_TAMIL */ "te", /* PANGO_SCRIPT_TELUGU */ "dv", /* PANGO_SCRIPT_THAANA */ "th", /* PANGO_SCRIPT_THAI */ "bo", /* PANGO_SCRIPT_TIBETAN */ "iu", /* PANGO_SCRIPT_CANADIAN_ABORIGINAL */ "", /* PANGO_SCRIPT_YI */ "tl", /* PANGO_SCRIPT_TAGALOG */ /* Phillipino languages/scripts */ "hnn", /* PANGO_SCRIPT_HANUNOO */ "bku", /* PANGO_SCRIPT_BUHID */ "tbw", /* PANGO_SCRIPT_TAGBANWA */ "", /* PANGO_SCRIPT_BRAILLE */ "", /* PANGO_SCRIPT_CYPRIOT */ "", /* PANGO_SCRIPT_LIMBU */ /* Used for Somali (so) in the past */ "", /* PANGO_SCRIPT_OSMANYA */ /* The Shavian alphabet was designed for English */ "", /* PANGO_SCRIPT_SHAVIAN */ "", /* PANGO_SCRIPT_LINEAR_B */ "", /* PANGO_SCRIPT_TAI_LE */ "uga", /* PANGO_SCRIPT_UGARITIC */ "", /* PANGO_SCRIPT_NEW_TAI_LUE */ "bug", /* PANGO_SCRIPT_BUGINESE */ /* The original script for Old Church Slavonic (chu), later * written with Cyrillic */ "", /* PANGO_SCRIPT_GLAGOLITIC */ /* Used for for Berber (ber), but Arabic script is more common */ "", /* PANGO_SCRIPT_TIFINAGH */ "syl", /* PANGO_SCRIPT_SYLOTI_NAGRI */ "peo", /* PANGO_SCRIPT_OLD_PERSIAN */ "", /* PANGO_SCRIPT_KHAROSHTHI */ "", /* PANGO_SCRIPT_UNKNOWN */ "", /* PANGO_SCRIPT_BALINESE */ "", /* PANGO_SCRIPT_CUNEIFORM */ "", /* PANGO_SCRIPT_PHOENICIAN */ "", /* PANGO_SCRIPT_PHAGS_PA */ "nqo", /* PANGO_SCRIPT_NKO */ /* Unicode-5.1 additions */ "", /* PANGO_SCRIPT_KAYAH_LI */ "", /* PANGO_SCRIPT_LEPCHA */ "", /* PANGO_SCRIPT_REJANG */ "", /* PANGO_SCRIPT_SUNDANESE */ "", /* PANGO_SCRIPT_SAURASHTRA */ "", /* PANGO_SCRIPT_CHAM */ "", /* PANGO_SCRIPT_OL_CHIKI */ "", /* PANGO_SCRIPT_VAI */ "", /* PANGO_SCRIPT_CARIAN */ "", /* PANGO_SCRIPT_LYCIAN */ "", /* PANGO_SCRIPT_LYDIAN */ /* Unicode-6.0 additions */ "", /* PANGO_SCRIPT_BATAK */ "", /* PANGO_SCRIPT_BRAHMI */ "", /* PANGO_SCRIPT_MANDAIC */ /* Unicode-6.1 additions */ "", /* PANGO_SCRIPT_CHAKMA */ "", /* PANGO_SCRIPT_MEROITIC_CURSIVE */ "", /* PANGO_SCRIPT_MEROITIC_HIEROGLYPHS */ "", /* PANGO_SCRIPT_MIAO */ "", /* PANGO_SCRIPT_SHARADA */ "", /* PANGO_SCRIPT_SORA_SOMPENG */ "", /* PANGO_SCRIPT_TAKRI */ }; const char *sample_language; PangoLanguage *result; g_return_val_if_fail (script >= 0, NULL); if ((guint)script >= G_N_ELEMENTS (sample_languages)) return NULL; result = _pango_script_get_default_language (script); if (result) return result; sample_language = sample_languages[script]; if (!sample_language[0]) return NULL; else return pango_language_from_string (sample_language); }