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eBookReaderSwitch/mupdf/thirdparty/harfbuzz/src/hb-common.h

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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 (_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>
#elif defined (_MSC_VER) && _MSC_VER < 1600
/* VS 2010 (_MSC_VER 1600) has stdint.h */
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
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)
#define HB_TAG_MAX_SIGNED HB_TAG(0x7f,0xff,0xff,0xff)
/* len=-1 means str is NUL-terminated. */
HB_EXTERN hb_tag_t
hb_tag_from_string (const char *str, int len);
/* buf should have 4 bytes. */
HB_EXTERN void
hb_tag_to_string (hb_tag_t tag, char *buf);
/**
* hb_direction_t:
* @HB_DIRECTION_INVALID: Initial, unset direction.
* @HB_DIRECTION_LTR: Text is set horizontally from left to right.
* @HB_DIRECTION_RTL: Text is set horizontally from right to left.
* @HB_DIRECTION_TTB: Text is set vertically from top to bottom.
* @HB_DIRECTION_BTT: Text is set vertically from bottom to top.
*/
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_EXTERN hb_direction_t
hb_direction_from_string (const char *str, int len);
HB_EXTERN const char *
hb_direction_to_string (hb_direction_t direction);
#define HB_DIRECTION_IS_VALID(dir) ((((unsigned int) (dir)) & ~3U) == 4)
/* Direction must be valid for the following */
#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_REVERSE(dir) ((hb_direction_t) (((unsigned int) (dir)) ^ 1))
/* hb_language_t */
typedef const struct hb_language_impl_t *hb_language_t;
HB_EXTERN hb_language_t
hb_language_from_string (const char *str, int len);
HB_EXTERN const char *
hb_language_to_string (hb_language_t language);
#define HB_LANGUAGE_INVALID ((hb_language_t) 0)
HB_EXTERN hb_language_t
hb_language_get_default (void);
/* hb_script_t */
/* https://unicode.org/iso15924/ */
/* https://docs.google.com/spreadsheets/d/1Y90M0Ie3MUJ6UVCRDOypOtijlMDLNNyyLk36T6iMu0o */
/* 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'),
/*
* Since: 0.9.30
*/
/*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 = HB_TAG ('M','o','d','i'),
/*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 = HB_TAG ('P','a','u','c'),
/*7.0*/ HB_SCRIPT_PSALTER_PAHLAVI = HB_TAG ('P','h','l','p'),
/*7.0*/ HB_SCRIPT_SIDDHAM = HB_TAG ('S','i','d','d'),
/*7.0*/ HB_SCRIPT_TIRHUTA = HB_TAG ('T','i','r','h'),
/*7.0*/ HB_SCRIPT_WARANG_CITI = HB_TAG ('W','a','r','a'),
/*8.0*/ HB_SCRIPT_AHOM = HB_TAG ('A','h','o','m'),
/*8.0*/ HB_SCRIPT_ANATOLIAN_HIEROGLYPHS = HB_TAG ('H','l','u','w'),
/*8.0*/ HB_SCRIPT_HATRAN = HB_TAG ('H','a','t','r'),
/*8.0*/ HB_SCRIPT_MULTANI = HB_TAG ('M','u','l','t'),
/*8.0*/ HB_SCRIPT_OLD_HUNGARIAN = HB_TAG ('H','u','n','g'),
/*8.0*/ HB_SCRIPT_SIGNWRITING = HB_TAG ('S','g','n','w'),
/*
* Since 1.3.0
*/
/*9.0*/ HB_SCRIPT_ADLAM = HB_TAG ('A','d','l','m'),
/*9.0*/ HB_SCRIPT_BHAIKSUKI = HB_TAG ('B','h','k','s'),
/*9.0*/ HB_SCRIPT_MARCHEN = HB_TAG ('M','a','r','c'),
/*9.0*/ HB_SCRIPT_OSAGE = HB_TAG ('O','s','g','e'),
/*9.0*/ HB_SCRIPT_TANGUT = HB_TAG ('T','a','n','g'),
/*9.0*/ HB_SCRIPT_NEWA = HB_TAG ('N','e','w','a'),
/*
* Since 1.6.0
*/
/*10.0*/HB_SCRIPT_MASARAM_GONDI = HB_TAG ('G','o','n','m'),
/*10.0*/HB_SCRIPT_NUSHU = HB_TAG ('N','s','h','u'),
/*10.0*/HB_SCRIPT_SOYOMBO = HB_TAG ('S','o','y','o'),
/*10.0*/HB_SCRIPT_ZANABAZAR_SQUARE = HB_TAG ('Z','a','n','b'),
/*
* Since 1.8.0
*/
/*11.0*/HB_SCRIPT_DOGRA = HB_TAG ('D','o','g','r'),
/*11.0*/HB_SCRIPT_GUNJALA_GONDI = HB_TAG ('G','o','n','g'),
/*11.0*/HB_SCRIPT_HANIFI_ROHINGYA = HB_TAG ('R','o','h','g'),
/*11.0*/HB_SCRIPT_MAKASAR = HB_TAG ('M','a','k','a'),
/*11.0*/HB_SCRIPT_MEDEFAIDRIN = HB_TAG ('M','e','d','f'),
/*11.0*/HB_SCRIPT_OLD_SOGDIAN = HB_TAG ('S','o','g','o'),
/*11.0*/HB_SCRIPT_SOGDIAN = HB_TAG ('S','o','g','d'),
/* No script set. */
HB_SCRIPT_INVALID = HB_TAG_NONE,
/* Dummy values to ensure any hb_tag_t value can be passed/stored as hb_script_t
* without risking undefined behavior. Include both a signed and unsigned max,
* since technically enums are int, and indeed, hb_script_t ends up being signed.
* See this thread for technicalities:
*
* https://lists.freedesktop.org/archives/harfbuzz/2014-March/004150.html
*/
_HB_SCRIPT_MAX_VALUE = HB_TAG_MAX, /*< skip >*/
_HB_SCRIPT_MAX_VALUE_SIGNED = HB_TAG_MAX_SIGNED /*< skip >*/
} hb_script_t;
/* Script functions */
HB_EXTERN hb_script_t
hb_script_from_iso15924_tag (hb_tag_t tag);
HB_EXTERN hb_script_t
hb_script_from_string (const char *str, int len);
HB_EXTERN hb_tag_t
hb_script_to_iso15924_tag (hb_script_t script);
HB_EXTERN 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);
/* Font features and variations. */
typedef struct hb_feature_t {
hb_tag_t tag;
uint32_t value;
unsigned int start;
unsigned int end;
} hb_feature_t;
HB_EXTERN hb_bool_t
hb_feature_from_string (const char *str, int len,
hb_feature_t *feature);
HB_EXTERN void
hb_feature_to_string (hb_feature_t *feature,
char *buf, unsigned int size);
/**
* hb_variation_t:
*
* Since: 1.4.2
*/
typedef struct hb_variation_t {
hb_tag_t tag;
float value;
} hb_variation_t;
HB_EXTERN hb_bool_t
hb_variation_from_string (const char *str, int len,
hb_variation_t *variation);
HB_EXTERN void
hb_variation_to_string (hb_variation_t *variation,
char *buf, unsigned int size);
HB_END_DECLS
#endif /* HB_COMMON_H */
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