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 /*

  * Copyright © 2007,2008,2009  Red Hat, Inc.

  * Copyright © 2011,2012  Google, Inc.

  *

  *  This is part of HarfBuzz, a text shaping library.

  *

  * Permission is hereby granted, without written agreement and without

  * license or royalty fees, to use, copy, modify, and distribute this

  * software and its documentation for any purpose, provided that the

  * above copyright notice and the following two paragraphs appear in

  * all copies of this software.

  *

  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR

  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES

  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN

  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH

  * DAMAGE.

  *

  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,

  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS

  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO

  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

  *

  * Red Hat Author(s): Behdad Esfahbod

  * Google Author(s): Behdad Esfahbod

  */

 #ifndef HB_H_IN

 #error "Include <hb.h> instead."

 #endif

 #ifndef HB_COMMON_H

 #define HB_COMMON_H

 #ifndef HB_BEGIN_DECLS

 # ifdef __cplusplus

 #  define HB_BEGIN_DECLS	extern "C" {

 #  define HB_END_DECLS		}

 # else /* !__cplusplus */

 #  define HB_BEGIN_DECLS

 #  define HB_END_DECLS

 # endif /* !__cplusplus */

 #endif

 #if !defined (HB_DONT_DEFINE_STDINT)

 #if defined (_SVR4) || defined (SVR4) || defined (__OpenBSD__) || \

     defined (_sgi) || defined (__sun) || defined (sun) || \

     defined (__digital__) || defined (__HP_cc)

 #  include <inttypes.h>

 #elif defined (_AIX)

 #  include <sys/inttypes.h>

 /* VS 2010 (_MSC_VER 1600) has stdint.h */

 #elif defined (_MSC_VER) && _MSC_VER < 1600

 typedef __int8 int8_t;

 typedef unsigned __int8 uint8_t;

 typedef __int16 int16_t;

 typedef unsigned __int16 uint16_t;

 typedef __int32 int32_t;

 typedef unsigned __int32 uint32_t;

 typedef __int64 int64_t;

 typedef unsigned __int64 uint64_t;

 #else

 #  include <stdint.h>

 #endif

 #endif

 HB_BEGIN_DECLS

 typedef int hb_bool_t;

 typedef uint32_t hb_codepoint_t;

 typedef int32_t hb_position_t;

 typedef uint32_t hb_mask_t;

 typedef union _hb_var_int_t {

   uint32_t u32;

   int32_t i32;

   uint16_t u16[2];

   int16_t i16[2];

   uint8_t u8[4];

   int8_t i8[4];

 } hb_var_int_t;

 /* hb_tag_t */

 typedef uint32_t hb_tag_t;

 #define HB_TAG(c1,c2,c3,c4) ((hb_tag_t)((((uint8_t)(c1))<<24)|(((uint8_t)(c2))<<16)|(((uint8_t)(c3))<<8)|((uint8_t)(c4))))

 #define HB_UNTAG(tag)   ((uint8_t)((tag)>>24)), ((uint8_t)((tag)>>16)), ((uint8_t)((tag)>>8)), ((uint8_t)(tag))

 #define HB_TAG_NONE HB_TAG(0,0,0,0)

 #define HB_TAG_MAX HB_TAG(0xff,0xff,0xff,0xff)

 /* len=-1 means str is NUL-terminated. */

 hb_tag_t

 hb_tag_from_string (const char *str, int len);

 /* buf should have 4 bytes. */

 void

 hb_tag_to_string (hb_tag_t tag, char *buf);

 /* hb_direction_t */

 typedef enum {

   HB_DIRECTION_INVALID = 0,

   HB_DIRECTION_LTR = 4,

   HB_DIRECTION_RTL,

   HB_DIRECTION_TTB,

   HB_DIRECTION_BTT

 } hb_direction_t;

 /* len=-1 means str is NUL-terminated */

 hb_direction_t

 hb_direction_from_string (const char *str, int len);

 const char *

 hb_direction_to_string (hb_direction_t direction);

 #define HB_DIRECTION_IS_HORIZONTAL(dir)	((((unsigned int) (dir)) & ~1U) == 4)

 #define HB_DIRECTION_IS_VERTICAL(dir)	((((unsigned int) (dir)) & ~1U) == 6)

 #define HB_DIRECTION_IS_FORWARD(dir)	((((unsigned int) (dir)) & ~2U) == 4)

 #define HB_DIRECTION_IS_BACKWARD(dir)	((((unsigned int) (dir)) & ~2U) == 5)

 #define HB_DIRECTION_IS_VALID(dir)	((((unsigned int) (dir)) & ~3U) == 4)

 #define HB_DIRECTION_REVERSE(dir)	((hb_direction_t) (((unsigned int) (dir)) ^ 1)) /* Direction must be valid */

 /* hb_language_t */

 typedef const struct hb_language_impl_t *hb_language_t;

 /* len=-1 means str is NUL-terminated */

 hb_language_t

 hb_language_from_string (const char *str, int len);

 const char *

 hb_language_to_string (hb_language_t language);

 #define HB_LANGUAGE_INVALID ((hb_language_t) NULL)

 hb_language_t

 hb_language_get_default (void);

 /* hb_script_t */

 /* http://unicode.org/iso15924/ */

 /* http://goo.gl/x9ilM */

 /* Unicode Character Database property: Script (sc) */

 typedef enum

 {

   /*1.1*/ HB_SCRIPT_COMMON			= HB_TAG ('Z','y','y','y'),

   /*1.1*/ HB_SCRIPT_INHERITED			= HB_TAG ('Z','i','n','h'),

   /*5.0*/ HB_SCRIPT_UNKNOWN			= HB_TAG ('Z','z','z','z'),

   /*1.1*/ HB_SCRIPT_ARABIC			= HB_TAG ('A','r','a','b'),

   /*1.1*/ HB_SCRIPT_ARMENIAN			= HB_TAG ('A','r','m','n'),

   /*1.1*/ HB_SCRIPT_BENGALI			= HB_TAG ('B','e','n','g'),

   /*1.1*/ HB_SCRIPT_CYRILLIC			= HB_TAG ('C','y','r','l'),

   /*1.1*/ HB_SCRIPT_DEVANAGARI			= HB_TAG ('D','e','v','a'),

   /*1.1*/ HB_SCRIPT_GEORGIAN			= HB_TAG ('G','e','o','r'),

   /*1.1*/ HB_SCRIPT_GREEK			= HB_TAG ('G','r','e','k'),

   /*1.1*/ HB_SCRIPT_GUJARATI			= HB_TAG ('G','u','j','r'),

   /*1.1*/ HB_SCRIPT_GURMUKHI			= HB_TAG ('G','u','r','u'),

   /*1.1*/ HB_SCRIPT_HANGUL			= HB_TAG ('H','a','n','g'),

   /*1.1*/ HB_SCRIPT_HAN				= HB_TAG ('H','a','n','i'),

   /*1.1*/ HB_SCRIPT_HEBREW			= HB_TAG ('H','e','b','r'),

   /*1.1*/ HB_SCRIPT_HIRAGANA			= HB_TAG ('H','i','r','a'),

   /*1.1*/ HB_SCRIPT_KANNADA			= HB_TAG ('K','n','d','a'),

   /*1.1*/ HB_SCRIPT_KATAKANA			= HB_TAG ('K','a','n','a'),

   /*1.1*/ HB_SCRIPT_LAO				= HB_TAG ('L','a','o','o'),

   /*1.1*/ HB_SCRIPT_LATIN			= HB_TAG ('L','a','t','n'),

   /*1.1*/ HB_SCRIPT_MALAYALAM			= HB_TAG ('M','l','y','m'),

   /*1.1*/ HB_SCRIPT_ORIYA			= HB_TAG ('O','r','y','a'),

   /*1.1*/ HB_SCRIPT_TAMIL			= HB_TAG ('T','a','m','l'),

   /*1.1*/ HB_SCRIPT_TELUGU			= HB_TAG ('T','e','l','u'),

   /*1.1*/ HB_SCRIPT_THAI			= HB_TAG ('T','h','a','i'),

   /*2.0*/ HB_SCRIPT_TIBETAN			= HB_TAG ('T','i','b','t'),

   /*3.0*/ HB_SCRIPT_BOPOMOFO			= HB_TAG ('B','o','p','o'),

   /*3.0*/ HB_SCRIPT_BRAILLE			= HB_TAG ('B','r','a','i'),

   /*3.0*/ HB_SCRIPT_CANADIAN_SYLLABICS		= HB_TAG ('C','a','n','s'),

   /*3.0*/ HB_SCRIPT_CHEROKEE			= HB_TAG ('C','h','e','r'),

   /*3.0*/ HB_SCRIPT_ETHIOPIC			= HB_TAG ('E','t','h','i'),

   /*3.0*/ HB_SCRIPT_KHMER			= HB_TAG ('K','h','m','r'),

   /*3.0*/ HB_SCRIPT_MONGOLIAN			= HB_TAG ('M','o','n','g'),

   /*3.0*/ HB_SCRIPT_MYANMAR			= HB_TAG ('M','y','m','r'),

   /*3.0*/ HB_SCRIPT_OGHAM			= HB_TAG ('O','g','a','m'),

   /*3.0*/ HB_SCRIPT_RUNIC			= HB_TAG ('R','u','n','r'),

   /*3.0*/ HB_SCRIPT_SINHALA			= HB_TAG ('S','i','n','h'),

   /*3.0*/ HB_SCRIPT_SYRIAC			= HB_TAG ('S','y','r','c'),

   /*3.0*/ HB_SCRIPT_THAANA			= HB_TAG ('T','h','a','a'),

   /*3.0*/ HB_SCRIPT_YI				= HB_TAG ('Y','i','i','i'),

   /*3.1*/ HB_SCRIPT_DESERET			= HB_TAG ('D','s','r','t'),

   /*3.1*/ HB_SCRIPT_GOTHIC			= HB_TAG ('G','o','t','h'),

   /*3.1*/ HB_SCRIPT_OLD_ITALIC			= HB_TAG ('I','t','a','l'),

   /*3.2*/ HB_SCRIPT_BUHID			= HB_TAG ('B','u','h','d'),

   /*3.2*/ HB_SCRIPT_HANUNOO			= HB_TAG ('H','a','n','o'),

   /*3.2*/ HB_SCRIPT_TAGALOG			= HB_TAG ('T','g','l','g'),

   /*3.2*/ HB_SCRIPT_TAGBANWA			= HB_TAG ('T','a','g','b'),

   /*4.0*/ HB_SCRIPT_CYPRIOT			= HB_TAG ('C','p','r','t'),

   /*4.0*/ HB_SCRIPT_LIMBU			= HB_TAG ('L','i','m','b'),

   /*4.0*/ HB_SCRIPT_LINEAR_B			= HB_TAG ('L','i','n','b'),

   /*4.0*/ HB_SCRIPT_OSMANYA			= HB_TAG ('O','s','m','a'),

   /*4.0*/ HB_SCRIPT_SHAVIAN			= HB_TAG ('S','h','a','w'),

   /*4.0*/ HB_SCRIPT_TAI_LE			= HB_TAG ('T','a','l','e'),

   /*4.0*/ HB_SCRIPT_UGARITIC			= HB_TAG ('U','g','a','r'),

   /*4.1*/ HB_SCRIPT_BUGINESE			= HB_TAG ('B','u','g','i'),

   /*4.1*/ HB_SCRIPT_COPTIC			= HB_TAG ('C','o','p','t'),

   /*4.1*/ HB_SCRIPT_GLAGOLITIC			= HB_TAG ('G','l','a','g'),

   /*4.1*/ HB_SCRIPT_KHAROSHTHI			= HB_TAG ('K','h','a','r'),

   /*4.1*/ HB_SCRIPT_NEW_TAI_LUE			= HB_TAG ('T','a','l','u'),

   /*4.1*/ HB_SCRIPT_OLD_PERSIAN			= HB_TAG ('X','p','e','o'),

   /*4.1*/ HB_SCRIPT_SYLOTI_NAGRI		= HB_TAG ('S','y','l','o'),

   /*4.1*/ HB_SCRIPT_TIFINAGH			= HB_TAG ('T','f','n','g'),

   /*5.0*/ HB_SCRIPT_BALINESE			= HB_TAG ('B','a','l','i'),

   /*5.0*/ HB_SCRIPT_CUNEIFORM			= HB_TAG ('X','s','u','x'),

   /*5.0*/ HB_SCRIPT_NKO				= HB_TAG ('N','k','o','o'),

   /*5.0*/ HB_SCRIPT_PHAGS_PA			= HB_TAG ('P','h','a','g'),

   /*5.0*/ HB_SCRIPT_PHOENICIAN			= HB_TAG ('P','h','n','x'),

   /*5.1*/ HB_SCRIPT_CARIAN			= HB_TAG ('C','a','r','i'),

   /*5.1*/ HB_SCRIPT_CHAM			= HB_TAG ('C','h','a','m'),

   /*5.1*/ HB_SCRIPT_KAYAH_LI			= HB_TAG ('K','a','l','i'),

   /*5.1*/ HB_SCRIPT_LEPCHA			= HB_TAG ('L','e','p','c'),

   /*5.1*/ HB_SCRIPT_LYCIAN			= HB_TAG ('L','y','c','i'),

   /*5.1*/ HB_SCRIPT_LYDIAN			= HB_TAG ('L','y','d','i'),

   /*5.1*/ HB_SCRIPT_OL_CHIKI			= HB_TAG ('O','l','c','k'),

   /*5.1*/ HB_SCRIPT_REJANG			= HB_TAG ('R','j','n','g'),

   /*5.1*/ HB_SCRIPT_SAURASHTRA			= HB_TAG ('S','a','u','r'),

   /*5.1*/ HB_SCRIPT_SUNDANESE			= HB_TAG ('S','u','n','d'),

   /*5.1*/ HB_SCRIPT_VAI				= HB_TAG ('V','a','i','i'),

   /*5.2*/ HB_SCRIPT_AVESTAN			= HB_TAG ('A','v','s','t'),

   /*5.2*/ HB_SCRIPT_BAMUM			= HB_TAG ('B','a','m','u'),

   /*5.2*/ HB_SCRIPT_EGYPTIAN_HIEROGLYPHS	= HB_TAG ('E','g','y','p'),

   /*5.2*/ HB_SCRIPT_IMPERIAL_ARAMAIC		= HB_TAG ('A','r','m','i'),

   /*5.2*/ HB_SCRIPT_INSCRIPTIONAL_PAHLAVI	= HB_TAG ('P','h','l','i'),

   /*5.2*/ HB_SCRIPT_INSCRIPTIONAL_PARTHIAN	= HB_TAG ('P','r','t','i'),

   /*5.2*/ HB_SCRIPT_JAVANESE			= HB_TAG ('J','a','v','a'),

   /*5.2*/ HB_SCRIPT_KAITHI			= HB_TAG ('K','t','h','i'),

   /*5.2*/ HB_SCRIPT_LISU			= HB_TAG ('L','i','s','u'),

   /*5.2*/ HB_SCRIPT_MEETEI_MAYEK		= HB_TAG ('M','t','e','i'),

   /*5.2*/ HB_SCRIPT_OLD_SOUTH_ARABIAN		= HB_TAG ('S','a','r','b'),

   /*5.2*/ HB_SCRIPT_OLD_TURKIC			= HB_TAG ('O','r','k','h'),

   /*5.2*/ HB_SCRIPT_SAMARITAN			= HB_TAG ('S','a','m','r'),

   /*5.2*/ HB_SCRIPT_TAI_THAM			= HB_TAG ('L','a','n','a'),

   /*5.2*/ HB_SCRIPT_TAI_VIET			= HB_TAG ('T','a','v','t'),

   /*6.0*/ HB_SCRIPT_BATAK			= HB_TAG ('B','a','t','k'),

   /*6.0*/ HB_SCRIPT_BRAHMI			= HB_TAG ('B','r','a','h'),

   /*6.0*/ HB_SCRIPT_MANDAIC			= HB_TAG ('M','a','n','d'),

   /*6.1*/ HB_SCRIPT_CHAKMA			= HB_TAG ('C','a','k','m'),

   /*6.1*/ HB_SCRIPT_MEROITIC_CURSIVE		= HB_TAG ('M','e','r','c'),

   /*6.1*/ HB_SCRIPT_MEROITIC_HIEROGLYPHS	= HB_TAG ('M','e','r','o'),

   /*6.1*/ HB_SCRIPT_MIAO			= HB_TAG ('P','l','r','d'),

   /*6.1*/ HB_SCRIPT_SHARADA			= HB_TAG ('S','h','r','d'),

   /*6.1*/ HB_SCRIPT_SORA_SOMPENG		= HB_TAG ('S','o','r','a'),

   /*6.1*/ HB_SCRIPT_TAKRI			= HB_TAG ('T','a','k','r'),

   /* No script set. */

   /*---*/ HB_SCRIPT_INVALID			= HB_TAG_NONE,

   /* Dummy value to ensure any hb_tag_t value can be passed/stored as hb_script_t

    * without risking undefined behavior. */

   /*---*/ _HB_SCRIPT_MAX_VALUE			= HB_TAG_MAX

 } hb_script_t;

 /* These are moved out of hb_script_t because glib-mkenums chokes otherwise. */

 #if 0

   /*7.0*/ HB_SCRIPT_BASSA_VAH			= HB_TAG ('B','a','s','s'),

   /*7.0*/ HB_SCRIPT_CAUCASIAN_ALBANIAN		= HB_TAG ('A','g','h','b'),

   /*7.0*/ HB_SCRIPT_DUPLOYAN			= HB_TAG ('D','u','p','l'),

   /*7.0*/ HB_SCRIPT_ELBASAN			= HB_TAG ('E','l','b','a'),

   /*7.0*/ HB_SCRIPT_GRANTHA			= HB_TAG ('G','r','a','n'),

   /*7.0*/ HB_SCRIPT_KHOJKI			= HB_TAG ('K','h','o','j'),

   /*7.0*/ HB_SCRIPT_KHUDAWADI			= HB_TAG ('S','i','n','d'),

   /*7.0*/ HB_SCRIPT_LINEAR_A			= HB_TAG ('L','i','n','a'),

   /*7.0*/ HB_SCRIPT_MAHAJANI			= HB_TAG ('M','a','h','j'),

   /*7.0*/ HB_SCRIPT_MANICHAEAN			= HB_TAG ('M','a','n','i'),

   /*7.0*/ HB_SCRIPT_MENDE_KIKAKUI		= HB_TAG ('M','e','n','d'),

   /*7.0*/ HB_SCRIPT_MODI			= ???

   /*7.0*/ HB_SCRIPT_MRO				= HB_TAG ('M','r','o','o'),

   /*7.0*/ HB_SCRIPT_NABATAEAN			= HB_TAG ('N','b','a','t'),

   /*7.0*/ HB_SCRIPT_OLD_NORTH_ARABIAN		= HB_TAG ('N','a','r','b'),

   /*7.0*/ HB_SCRIPT_OLD_PERMIC			= HB_TAG ('P','e','r','m'),

   /*7.0*/ HB_SCRIPT_PAHAWH_HMONG		= HB_TAG ('H','m','n','g'),

   /*7.0*/ HB_SCRIPT_PALMYRENE			= HB_TAG ('P','a','l','m'),

   /*7.0*/ HB_SCRIPT_PAU_CIN_HAU			= ???

   /*7.0*/ HB_SCRIPT_PSALTER_PAHLAVI		= HB_TAG ('P','h','l','p'),

   /*7.0*/ HB_SCRIPT_SIDDHAM			= ???

   /*7.0*/ HB_SCRIPT_TIRHUTA			= HB_TAG ('T','i','r','h'),

   /*7.0*/ HB_SCRIPT_WARANG_CITI			= HB_TAG ('W','a','r','a'),

 #endif

 /* Script functions */

 hb_script_t

 hb_script_from_iso15924_tag (hb_tag_t tag);

 /* suger for tag_from_string() then script_from_iso15924_tag */

 /* len=-1 means s is NUL-terminated */

 hb_script_t

 hb_script_from_string (const char *s, int len);

 hb_tag_t

 hb_script_to_iso15924_tag (hb_script_t script);

 hb_direction_t

 hb_script_get_horizontal_direction (hb_script_t script);

 /* User data */

 typedef struct hb_user_data_key_t {

   /*< private >*/

   char unused;

 } hb_user_data_key_t;

 typedef void (*hb_destroy_func_t) (void *user_data);

 HB_END_DECLS

 #endif /* HB_COMMON_H */