}
+/* hb_script_t */
+
+static const hb_tag_t script_to_iso15924_tag[] =
+{
+ HB_TAG('Z','y','y','y'), /* HB_SCRIPT_COMMON */
+ HB_TAG('Q','a','a','i'), /* HB_SCRIPT_INHERITED */
+ HB_TAG('A','r','a','b'), /* HB_SCRIPT_ARABIC */
+ HB_TAG('A','r','m','n'), /* HB_SCRIPT_ARMENIAN */
+ HB_TAG('B','e','n','g'), /* HB_SCRIPT_BENGALI */
+ HB_TAG('B','o','p','o'), /* HB_SCRIPT_BOPOMOFO */
+ HB_TAG('C','h','e','r'), /* HB_SCRIPT_CHEROKEE */
+ HB_TAG('Q','a','a','c'), /* HB_SCRIPT_COPTIC */
+ HB_TAG('C','y','r','l'), /* HB_SCRIPT_CYRILLIC */
+ HB_TAG('D','s','r','t'), /* HB_SCRIPT_DESERET */
+ HB_TAG('D','e','v','a'), /* HB_SCRIPT_DEVANAGARI */
+ HB_TAG('E','t','h','i'), /* HB_SCRIPT_ETHIOPIC */
+ HB_TAG('G','e','o','r'), /* HB_SCRIPT_GEORGIAN */
+ HB_TAG('G','o','t','h'), /* HB_SCRIPT_GOTHIC */
+ HB_TAG('G','r','e','k'), /* HB_SCRIPT_GREEK */
+ HB_TAG('G','u','j','r'), /* HB_SCRIPT_GUJARATI */
+ HB_TAG('G','u','r','u'), /* HB_SCRIPT_GURMUKHI */
+ HB_TAG('H','a','n','i'), /* HB_SCRIPT_HAN */
+ HB_TAG('H','a','n','g'), /* HB_SCRIPT_HANGUL */
+ HB_TAG('H','e','b','r'), /* HB_SCRIPT_HEBREW */
+ HB_TAG('H','i','r','a'), /* HB_SCRIPT_HIRAGANA */
+ HB_TAG('K','n','d','a'), /* HB_SCRIPT_KANNADA */
+ HB_TAG('K','a','n','a'), /* HB_SCRIPT_KATAKANA */
+ HB_TAG('K','h','m','r'), /* HB_SCRIPT_KHMER */
+ HB_TAG('L','a','o','o'), /* HB_SCRIPT_LAO */
+ HB_TAG('L','a','t','n'), /* HB_SCRIPT_LATIN */
+ HB_TAG('M','l','y','m'), /* HB_SCRIPT_MALAYALAM */
+ HB_TAG('M','o','n','g'), /* HB_SCRIPT_MONGOLIAN */
+ HB_TAG('M','y','m','r'), /* HB_SCRIPT_MYANMAR */
+ HB_TAG('O','g','a','m'), /* HB_SCRIPT_OGHAM */
+ HB_TAG('I','t','a','l'), /* HB_SCRIPT_OLD_ITALIC */
+ HB_TAG('O','r','y','a'), /* HB_SCRIPT_ORIYA */
+ HB_TAG('R','u','n','r'), /* HB_SCRIPT_RUNIC */
+ HB_TAG('S','i','n','h'), /* HB_SCRIPT_SINHALA */
+ HB_TAG('S','y','r','c'), /* HB_SCRIPT_SYRIAC */
+ HB_TAG('T','a','m','l'), /* HB_SCRIPT_TAMIL */
+ HB_TAG('T','e','l','u'), /* HB_SCRIPT_TELUGU */
+ HB_TAG('T','h','a','a'), /* HB_SCRIPT_THAANA */
+ HB_TAG('T','h','a','i'), /* HB_SCRIPT_THAI */
+ HB_TAG('T','i','b','t'), /* HB_SCRIPT_TIBETAN */
+ HB_TAG('C','a','n','s'), /* HB_SCRIPT_CANADIAN_ABORIGINAL */
+ HB_TAG('Y','i','i','i'), /* HB_SCRIPT_YI */
+ HB_TAG('T','g','l','g'), /* HB_SCRIPT_TAGALOG */
+ HB_TAG('H','a','n','o'), /* HB_SCRIPT_HANUNOO */
+ HB_TAG('B','u','h','d'), /* HB_SCRIPT_BUHID */
+ HB_TAG('T','a','g','b'), /* HB_SCRIPT_TAGBANWA */
+
+ /* Unicode-4.0 additions */
+ HB_TAG('B','r','a','i'), /* HB_SCRIPT_BRAILLE */
+ HB_TAG('C','p','r','t'), /* HB_SCRIPT_CYPRIOT */
+ HB_TAG('L','i','m','b'), /* HB_SCRIPT_LIMBU */
+ HB_TAG('O','s','m','a'), /* HB_SCRIPT_OSMANYA */
+ HB_TAG('S','h','a','w'), /* HB_SCRIPT_SHAVIAN */
+ HB_TAG('L','i','n','b'), /* HB_SCRIPT_LINEAR_B */
+ HB_TAG('T','a','l','e'), /* HB_SCRIPT_TAI_LE */
+ HB_TAG('U','g','a','r'), /* HB_SCRIPT_UGARITIC */
+
+ /* Unicode-4.1 additions */
+ HB_TAG('T','a','l','u'), /* HB_SCRIPT_NEW_TAI_LUE */
+ HB_TAG('B','u','g','i'), /* HB_SCRIPT_BUGINESE */
+ HB_TAG('G','l','a','g'), /* HB_SCRIPT_GLAGOLITIC */
+ HB_TAG('T','f','n','g'), /* HB_SCRIPT_TIFINAGH */
+ HB_TAG('S','y','l','o'), /* HB_SCRIPT_SYLOTI_NAGRI */
+ HB_TAG('X','p','e','o'), /* HB_SCRIPT_OLD_PERSIAN */
+ HB_TAG('K','h','a','r'), /* HB_SCRIPT_KHAROSHTHI */
+
+ /* Unicode-5.0 additions */
+ HB_TAG('Z','z','z','z'), /* HB_SCRIPT_UNKNOWN */
+ HB_TAG('B','a','l','i'), /* HB_SCRIPT_BALINESE */
+ HB_TAG('X','s','u','x'), /* HB_SCRIPT_CUNEIFORM */
+ HB_TAG('P','h','n','x'), /* HB_SCRIPT_PHOENICIAN */
+ HB_TAG('P','h','a','g'), /* HB_SCRIPT_PHAGS_PA */
+ HB_TAG('N','k','o','o'), /* HB_SCRIPT_NKO */
+
+ /* Unicode-5.1 additions */
+ HB_TAG('K','a','l','i'), /* HB_SCRIPT_KAYAH_LI */
+ HB_TAG('L','e','p','c'), /* HB_SCRIPT_LEPCHA */
+ HB_TAG('R','j','n','g'), /* HB_SCRIPT_REJANG */
+ HB_TAG('S','u','n','d'), /* HB_SCRIPT_SUNDANESE */
+ HB_TAG('S','a','u','r'), /* HB_SCRIPT_SAURASHTRA */
+ HB_TAG('C','h','a','m'), /* HB_SCRIPT_CHAM */
+ HB_TAG('O','l','c','k'), /* HB_SCRIPT_OL_CHIKI */
+ HB_TAG('V','a','i','i'), /* HB_SCRIPT_VAI */
+ HB_TAG('C','a','r','i'), /* HB_SCRIPT_CARIAN */
+ HB_TAG('L','y','c','i'), /* HB_SCRIPT_LYCIAN */
+ HB_TAG('L','y','d','i'), /* HB_SCRIPT_LYDIAN */
+
+ /* Unicode-5.2 additions */
+ HB_TAG('A','v','s','t'), /* HB_SCRIPT_AVESTAN */
+ HB_TAG('B','a','m','u'), /* HB_SCRIPT_BAMUM */
+ HB_TAG('E','g','y','p'), /* HB_SCRIPT_EGYPTIAN_HIEROGLYPHS */
+ HB_TAG('A','r','m','i'), /* HB_SCRIPT_IMPERIAL_ARAMAIC */
+ HB_TAG('P','h','l','i'), /* HB_SCRIPT_INSCRIPTIONAL_PAHLAVI */
+ HB_TAG('P','r','t','i'), /* HB_SCRIPT_INSCRIPTIONAL_PARTHIAN */
+ HB_TAG('J','a','v','a'), /* HB_SCRIPT_JAVANESE */
+ HB_TAG('K','t','h','i'), /* HB_SCRIPT_KAITHI */
+ HB_TAG('L','i','s','u'), /* HB_SCRIPT_LISU */
+ HB_TAG('M','t','e','i'), /* HB_SCRIPT_MEETEI_MAYEK */
+ HB_TAG('S','a','r','b'), /* HB_SCRIPT_OLD_SOUTH_ARABIAN */
+ HB_TAG('O','r','k','h'), /* HB_SCRIPT_OLD_TURKIC */
+ HB_TAG('S','a','m','r'), /* HB_SCRIPT_SAMARITAN */
+ HB_TAG('L','a','n','a'), /* HB_SCRIPT_TAI_THAM */
+ HB_TAG('T','a','v','t'), /* HB_SCRIPT_TAI_VIET */
+
+ /* Unicode-6.0 additions */
+ HB_TAG('B','a','t','k'), /* HB_SCRIPT_BATAK */
+ HB_TAG('B','r','a','h'), /* HB_SCRIPT_BRAHMI */
+ HB_TAG('M','a','n','d') /* HB_SCRIPT_MANDAIC */
+};
+
+struct tag_script_pair {
+ hb_tag_t tag;
+ hb_script_t script;
+};
+static const struct tag_script_pair script_from_iso15924_tag[] =
+{
+ {HB_TAG('A','r','a','b'), HB_SCRIPT_ARABIC},
+ {HB_TAG('A','r','m','i'), HB_SCRIPT_IMPERIAL_ARAMAIC},
+ {HB_TAG('A','r','m','n'), HB_SCRIPT_ARMENIAN},
+ {HB_TAG('A','v','s','t'), HB_SCRIPT_AVESTAN},
+ {HB_TAG('B','a','l','i'), HB_SCRIPT_BALINESE},
+ {HB_TAG('B','a','m','u'), HB_SCRIPT_BAMUM},
+ {HB_TAG('B','a','t','k'), HB_SCRIPT_BATAK},
+ {HB_TAG('B','e','n','g'), HB_SCRIPT_BENGALI},
+ {HB_TAG('B','o','p','o'), HB_SCRIPT_BOPOMOFO},
+ {HB_TAG('B','r','a','h'), HB_SCRIPT_BRAHMI},
+ {HB_TAG('B','r','a','i'), HB_SCRIPT_BRAILLE},
+ {HB_TAG('B','u','g','i'), HB_SCRIPT_BUGINESE},
+ {HB_TAG('B','u','h','d'), HB_SCRIPT_BUHID},
+ {HB_TAG('C','a','n','s'), HB_SCRIPT_CANADIAN_ABORIGINAL},
+ {HB_TAG('C','a','r','i'), HB_SCRIPT_CARIAN},
+ {HB_TAG('C','h','a','m'), HB_SCRIPT_CHAM},
+ {HB_TAG('C','h','e','r'), HB_SCRIPT_CHEROKEE},
+ {HB_TAG('C','p','r','t'), HB_SCRIPT_CYPRIOT},
+ {HB_TAG('C','y','r','l'), HB_SCRIPT_CYRILLIC},
+ {HB_TAG('C','y','r','s'), HB_SCRIPT_CYRILLIC},
+ {HB_TAG('D','e','v','a'), HB_SCRIPT_DEVANAGARI},
+ {HB_TAG('D','s','r','t'), HB_SCRIPT_DESERET},
+ {HB_TAG('E','g','y','p'), HB_SCRIPT_EGYPTIAN_HIEROGLYPHS},
+ {HB_TAG('E','t','h','i'), HB_SCRIPT_ETHIOPIC},
+ {HB_TAG('G','e','o','a'), HB_SCRIPT_GEORGIAN},
+ {HB_TAG('G','e','o','n'), HB_SCRIPT_GEORGIAN},
+ {HB_TAG('G','e','o','r'), HB_SCRIPT_GEORGIAN},
+ {HB_TAG('G','l','a','g'), HB_SCRIPT_GLAGOLITIC},
+ {HB_TAG('G','o','t','h'), HB_SCRIPT_GOTHIC},
+ {HB_TAG('G','r','e','k'), HB_SCRIPT_GREEK},
+ {HB_TAG('G','u','j','r'), HB_SCRIPT_GUJARATI},
+ {HB_TAG('G','u','r','u'), HB_SCRIPT_GURMUKHI},
+ {HB_TAG('H','a','n','g'), HB_SCRIPT_HANGUL},
+ {HB_TAG('H','a','n','i'), HB_SCRIPT_HAN},
+ {HB_TAG('H','a','n','o'), HB_SCRIPT_HANUNOO},
+ {HB_TAG('H','e','b','r'), HB_SCRIPT_HEBREW},
+ {HB_TAG('H','i','r','a'), HB_SCRIPT_HIRAGANA},
+ {HB_TAG('I','t','a','l'), HB_SCRIPT_OLD_ITALIC},
+ {HB_TAG('J','a','v','a'), HB_SCRIPT_JAVANESE},
+ {HB_TAG('K','a','l','i'), HB_SCRIPT_KAYAH_LI},
+ {HB_TAG('K','a','n','a'), HB_SCRIPT_KATAKANA},
+ {HB_TAG('K','h','a','r'), HB_SCRIPT_KHAROSHTHI},
+ {HB_TAG('K','h','m','r'), HB_SCRIPT_KHMER},
+ {HB_TAG('K','n','d','a'), HB_SCRIPT_KANNADA},
+ {HB_TAG('K','t','h','i'), HB_SCRIPT_KAITHI},
+ {HB_TAG('L','a','n','a'), HB_SCRIPT_TAI_THAM},
+ {HB_TAG('L','a','o','o'), HB_SCRIPT_LAO},
+ {HB_TAG('L','a','t','f'), HB_SCRIPT_LATIN},
+ {HB_TAG('L','a','t','g'), HB_SCRIPT_LATIN},
+ {HB_TAG('L','a','t','n'), HB_SCRIPT_LATIN},
+ {HB_TAG('L','e','p','c'), HB_SCRIPT_LEPCHA},
+ {HB_TAG('L','i','m','b'), HB_SCRIPT_LIMBU},
+ {HB_TAG('L','i','n','b'), HB_SCRIPT_LINEAR_B},
+ {HB_TAG('L','i','s','u'), HB_SCRIPT_LISU},
+ {HB_TAG('L','y','c','i'), HB_SCRIPT_LYCIAN},
+ {HB_TAG('L','y','d','i'), HB_SCRIPT_LYDIAN},
+ {HB_TAG('M','a','n','d'), HB_SCRIPT_MANDAIC},
+ {HB_TAG('M','l','y','m'), HB_SCRIPT_MALAYALAM},
+ {HB_TAG('M','o','n','g'), HB_SCRIPT_MONGOLIAN},
+ {HB_TAG('M','t','e','i'), HB_SCRIPT_MEETEI_MAYEK},
+ {HB_TAG('M','y','m','r'), HB_SCRIPT_MYANMAR},
+ {HB_TAG('N','k','o','o'), HB_SCRIPT_NKO},
+ {HB_TAG('O','g','a','m'), HB_SCRIPT_OGHAM},
+ {HB_TAG('O','l','c','k'), HB_SCRIPT_OL_CHIKI},
+ {HB_TAG('O','r','k','h'), HB_SCRIPT_OLD_TURKIC},
+ {HB_TAG('O','r','y','a'), HB_SCRIPT_ORIYA},
+ {HB_TAG('O','s','m','a'), HB_SCRIPT_OSMANYA},
+ {HB_TAG('P','h','a','g'), HB_SCRIPT_PHAGS_PA},
+ {HB_TAG('P','h','l','i'), HB_SCRIPT_INSCRIPTIONAL_PAHLAVI},
+ {HB_TAG('P','h','n','x'), HB_SCRIPT_PHOENICIAN},
+ {HB_TAG('P','r','t','i'), HB_SCRIPT_INSCRIPTIONAL_PARTHIAN},
+ {HB_TAG('Q','a','a','c'), HB_SCRIPT_COPTIC},
+ {HB_TAG('Q','a','a','i'), HB_SCRIPT_INHERITED},
+ {HB_TAG('R','j','n','g'), HB_SCRIPT_REJANG},
+ {HB_TAG('R','u','n','r'), HB_SCRIPT_RUNIC},
+ {HB_TAG('S','a','m','r'), HB_SCRIPT_SAMARITAN},
+ {HB_TAG('S','a','r','b'), HB_SCRIPT_OLD_SOUTH_ARABIAN},
+ {HB_TAG('S','a','u','r'), HB_SCRIPT_SAURASHTRA},
+ {HB_TAG('S','h','a','w'), HB_SCRIPT_SHAVIAN},
+ {HB_TAG('S','i','n','h'), HB_SCRIPT_SINHALA},
+ {HB_TAG('S','u','n','d'), HB_SCRIPT_SUNDANESE},
+ {HB_TAG('S','y','l','o'), HB_SCRIPT_SYLOTI_NAGRI},
+ {HB_TAG('S','y','r','c'), HB_SCRIPT_SYRIAC},
+ {HB_TAG('S','y','r','e'), HB_SCRIPT_SYRIAC},
+ {HB_TAG('S','y','r','n'), HB_SCRIPT_SYRIAC},
+ {HB_TAG('T','a','g','b'), HB_SCRIPT_TAGBANWA},
+ {HB_TAG('T','a','l','e'), HB_SCRIPT_TAI_LE},
+ {HB_TAG('T','a','l','u'), HB_SCRIPT_NEW_TAI_LUE},
+ {HB_TAG('T','a','m','l'), HB_SCRIPT_TAMIL},
+ {HB_TAG('T','a','v','t'), HB_SCRIPT_TAI_VIET},
+ {HB_TAG('T','e','l','u'), HB_SCRIPT_TELUGU},
+ {HB_TAG('T','f','n','g'), HB_SCRIPT_TIFINAGH},
+ {HB_TAG('T','g','l','g'), HB_SCRIPT_TAGALOG},
+ {HB_TAG('T','h','a','a'), HB_SCRIPT_THAANA},
+ {HB_TAG('T','h','a','i'), HB_SCRIPT_THAI},
+ {HB_TAG('T','i','b','t'), HB_SCRIPT_TIBETAN},
+ {HB_TAG('U','g','a','r'), HB_SCRIPT_UGARITIC},
+ {HB_TAG('V','a','i','i'), HB_SCRIPT_VAI},
+ {HB_TAG('X','p','e','o'), HB_SCRIPT_OLD_PERSIAN},
+ {HB_TAG('X','s','u','x'), HB_SCRIPT_CUNEIFORM},
+ {HB_TAG('Y','i','i','i'), HB_SCRIPT_YI},
+ {HB_TAG('Z','y','y','y'), HB_SCRIPT_COMMON},
+ {HB_TAG('Z','z','z','z'), HB_SCRIPT_UNKNOWN}
+};
+
+static int
+_tag_cmp (hb_tag_t *pa, hb_tag_t *pb)
+{
+ hb_tag_t a = *pa, b = *pb;
+ return a < b ? -1 : a == b ? 0 : +1;
+}
+
+
+hb_script_t
+hb_script_from_iso15924_tag (hb_tag_t tag)
+{
+ const struct tag_script_pair *pair;
+
+ /* Be lenient, adjust case (one capital letter followed by three small letters) */
+ tag = (tag & 0xDFDFDFDF) | 0x00202020;
+
+ pair = (const struct tag_script_pair *) bsearch (&tag,
+ script_from_iso15924_tag,
+ ARRAY_LENGTH (script_from_iso15924_tag),
+ sizeof (script_from_iso15924_tag[0]),
+ (hb_compare_func_t) _tag_cmp);
+
+ if (pair)
+ return pair->script;
+
+ /* If it looks right, just use the tag as a script */
+ if (((uint32_t) tag & 0xE0E0E0E0) == 0x40606060)
+ return (hb_script_t) tag;
+
+ /* Otherwise, return unknown */
+ return HB_SCRIPT_UNKNOWN;
+}
+
+hb_tag_t
+hb_script_to_iso15924_tag (hb_script_t script)
+{
+ if (likely ((unsigned int) script < ARRAY_LENGTH (script_to_iso15924_tag)))
+ return script_to_iso15924_tag[script];
+
+ /* if script is of the right shape (one capital letter followed by three small letters),
+ * return as is. */
+ if (((uint32_t) script & 0xE0E0E0E0) == 0x40606060)
+ return (hb_tag_t) script;
+
+ /* Otherwise, we don't know what that is */
+ return script_to_iso15924_tag[HB_SCRIPT_UNKNOWN];
+}
+
#define LTR HB_DIRECTION_LTR
#define RTL HB_DIRECTION_RTL