Update harfbuzz-ng to 1a5a91dc0d8bf4b72a2f22dc6300b06ad7000b79.

third_party/harfbuzz-ng/src/hb-common.h

 /*
- * Copyright (C) 2007,2008,2009  Red Hat, Inc.
+ * Copyright © 2007,2008,2009  Red Hat, Inc.
+ * Copyright © 2011  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_COMMON_H
 #define HB_COMMON_H
 
 # ifdef __cplusplus
 #  define HB_BEGIN_DECLS        extern "C" {
 #  define HB_END_DECLS          }
 # else /* !__cplusplus */
 #  define HB_BEGIN_DECLS
 #  define HB_END_DECLS
 # endif /* !__cplusplus */
 
 HB_BEGIN_DECLS
 
+#if !defined (HB_DONT_DEFINE_STDINT)
 
-#ifdef _MSC_VER
-#define _HB__STR2__(x) #x
-#define _HB__STR1__(x) _HB__STR2__(x)
-#define _HB__LOC__ __FILE__ "("_HB__STR1__(__LINE__)") : Warning Msg: "
-#pragma message(_HB__LOC__"Not using stdint.h; integer types may have wrong size")
-typedef signed char int8_t;
-typedef unsigned char uint8_t;
-typedef signed short int16_t;
-typedef unsigned short uint16_t;
-typedef signed int int32_t;
-typedef unsigned int uint32_t;
-typedef signed long long int64_t;
-typedef unsigned long long uint64_t;
-#ifndef __cplusplus
-#define inline __inline
-#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>
+/* 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>
+#  include <stdint.h>
 #endif
 
+#endif
+
+
 typedef int hb_bool_t;
 
-typedef uint32_t hb_tag_t;
-#define HB_TAG(a,b,c,d) ((hb_tag_t)(((uint8_t)a<<24)|((uint8_t)b<<16)|((uint8_t)c<<8)|(uint8_t)d))
-#define HB_TAG_STR(s)   (HB_TAG(((const char *) s)[0], \
-                                ((const char *) s)[1], \
-                                ((const char *) s)[2], \
-                                ((const char *) s)[3]))
-#define HB_TAG_NONE HB_TAG(0,0,0,0)
-
-hb_tag_t hb_tag_from_string (const char *s);
-
-
 typedef uint32_t hb_codepoint_t;
 typedef int32_t hb_position_t;
 typedef uint32_t hb_mask_t;
 
-typedef void (*hb_destroy_func_t) (void *user_data);
+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;
 
-typedef enum _hb_direction_t {
-  HB_DIRECTION_LTR,
+
+/* hb_tag_t */
+
+typedef uint32_t hb_tag_t;
+
+#define HB_TAG(a,b,c,d) ((hb_tag_t)((((uint8_t)(a))<<24)|(((uint8_t)(b))<<16)|(((uint8_t)(c))<<8)|((uint8_t)(d))))
+#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)
+
+/* len=-1 means s is NUL-terminated */
+hb_tag_t hb_tag_from_string (const char *s, int len);
+
+
+/* hb_direction_t */
+
+typedef enum {
+  HB_DIRECTION_INVALID = -1,
+  HB_DIRECTION_LTR = 0,
   HB_DIRECTION_RTL,
   HB_DIRECTION_TTB,
   HB_DIRECTION_BTT
 } hb_direction_t;
 
+/* len=-1 means s 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) == 0)
 #define HB_DIRECTION_IS_VERTICAL(dir)   ((((unsigned int) (dir)) & ~1U) == 2)
 #define HB_DIRECTION_IS_FORWARD(dir)    ((((unsigned int) (dir)) & ~2U) == 0)
 #define HB_DIRECTION_IS_BACKWARD(dir)   ((((unsigned int) (dir)) & ~2U) == 1)
 #define HB_DIRECTION_REVERSE(dir)       ((hb_direction_t) (((unsigned int) (dir)) ^ 1))
 
 
-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_language_t */
+
+typedef struct _hb_language_t *hb_language_t;
+
+/* len=-1 means s 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_unicode_general_category_t */
+
+typedef enum
+{
+  HB_UNICODE_GENERAL_CATEGORY_CONTROL,                  /* Cc */
+  HB_UNICODE_GENERAL_CATEGORY_FORMAT,                   /* Cf */
+  HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED,               /* Cn */
+  HB_UNICODE_GENERAL_CATEGORY_PRIVATE_USE,              /* Co */
+  HB_UNICODE_GENERAL_CATEGORY_SURROGATE,                /* Cs */
+  HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER,         /* Ll */
+  HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER,          /* Lm */
+  HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER,             /* Lo */
+  HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER,         /* Lt */
+  HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER,         /* Lu */
+  HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK,             /* Mc */
+  HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK,           /* Me */
+  HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK,         /* Mn */
+  HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER,           /* Nd */
+  HB_UNICODE_GENERAL_CATEGORY_LETTER_NUMBER,            /* Nl */
+  HB_UNICODE_GENERAL_CATEGORY_OTHER_NUMBER,             /* No */
+  HB_UNICODE_GENERAL_CATEGORY_CONNECT_PUNCTUATION,      /* Pc */
+  HB_UNICODE_GENERAL_CATEGORY_DASH_PUNCTUATION,         /* Pd */
+  HB_UNICODE_GENERAL_CATEGORY_CLOSE_PUNCTUATION,        /* Pe */
+  HB_UNICODE_GENERAL_CATEGORY_FINAL_PUNCTUATION,        /* Pf */
+  HB_UNICODE_GENERAL_CATEGORY_INITIAL_PUNCTUATION,      /* Pi */
+  HB_UNICODE_GENERAL_CATEGORY_OTHER_PUNCTUATION,        /* Po */
+  HB_UNICODE_GENERAL_CATEGORY_OPEN_PUNCTUATION,         /* Ps */
+  HB_UNICODE_GENERAL_CATEGORY_CURRENCY_SYMBOL,          /* Sc */
+  HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL,          /* Sk */
+  HB_UNICODE_GENERAL_CATEGORY_MATH_SYMBOL,              /* Sm */
+  HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL,             /* So */
+  HB_UNICODE_GENERAL_CATEGORY_LINE_SEPARATOR,           /* Zl */
+  HB_UNICODE_GENERAL_CATEGORY_PARAGRAPH_SEPARATOR,      /* Zp */
+  HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR           /* Zs */
+} hb_unicode_general_category_t;
+
+
+/* hb_script_t */
+
+/* http://unicode.org/iso15924/ */
+typedef enum
+{
+  HB_SCRIPT_COMMON                  = HB_TAG ('Z','y','y','y'),
+  HB_SCRIPT_INHERITED               = HB_TAG ('Z','i','n','h'),
+  HB_SCRIPT_ARABIC                  = HB_TAG ('A','r','a','b'),
+  HB_SCRIPT_ARMENIAN                = HB_TAG ('A','r','m','n'),
+  HB_SCRIPT_BENGALI                 = HB_TAG ('B','e','n','g'),
+  HB_SCRIPT_BOPOMOFO                = HB_TAG ('B','o','p','o'),
+  HB_SCRIPT_CHEROKEE                = HB_TAG ('C','h','e','r'),
+  HB_SCRIPT_COPTIC                  = HB_TAG ('C','o','p','t'),
+  HB_SCRIPT_CYRILLIC                = HB_TAG ('C','y','r','l'),
+  HB_SCRIPT_DESERET                 = HB_TAG ('D','s','r','t'),
+  HB_SCRIPT_DEVANAGARI              = HB_TAG ('D','e','v','a'),
+  HB_SCRIPT_ETHIOPIC                = HB_TAG ('E','t','h','i'),
+  HB_SCRIPT_GEORGIAN                = HB_TAG ('G','e','o','r'),
+  HB_SCRIPT_GOTHIC                  = HB_TAG ('G','o','t','h'),
+  HB_SCRIPT_GREEK                   = HB_TAG ('G','r','e','k'),
+  HB_SCRIPT_GUJARATI                = HB_TAG ('G','u','j','r'),
+  HB_SCRIPT_GURMUKHI                = HB_TAG ('G','u','r','u'),
+  HB_SCRIPT_HAN                     = HB_TAG ('H','a','n','i'),
+  HB_SCRIPT_HANGUL                  = HB_TAG ('H','a','n','g'),
+  HB_SCRIPT_HEBREW                  = HB_TAG ('H','e','b','r'),
+  HB_SCRIPT_HIRAGANA                = HB_TAG ('H','i','r','a'),
+  HB_SCRIPT_KANNADA                 = HB_TAG ('K','n','d','a'),
+  HB_SCRIPT_KATAKANA                = HB_TAG ('K','a','n','a'),
+  HB_SCRIPT_KHMER                   = HB_TAG ('K','h','m','r'),
+  HB_SCRIPT_LAO                     = HB_TAG ('L','a','o','o'),
+  HB_SCRIPT_LATIN                   = HB_TAG ('L','a','t','n'),
+  HB_SCRIPT_MALAYALAM               = HB_TAG ('M','l','y','m'),
+  HB_SCRIPT_MONGOLIAN               = HB_TAG ('M','o','n','g'),
+  HB_SCRIPT_MYANMAR                 = HB_TAG ('M','y','m','r'),
+  HB_SCRIPT_OGHAM                   = HB_TAG ('O','g','a','m'),
+  HB_SCRIPT_OLD_ITALIC              = HB_TAG ('I','t','a','l'),
+  HB_SCRIPT_ORIYA                   = HB_TAG ('O','r','y','a'),
+  HB_SCRIPT_RUNIC                   = HB_TAG ('R','u','n','r'),
+  HB_SCRIPT_SINHALA                 = HB_TAG ('S','i','n','h'),
+  HB_SCRIPT_SYRIAC                  = HB_TAG ('S','y','r','c'),
+  HB_SCRIPT_TAMIL                   = HB_TAG ('T','a','m','l'),
+  HB_SCRIPT_TELUGU                  = HB_TAG ('T','e','l','u'),
+  HB_SCRIPT_THAANA                  = HB_TAG ('T','h','a','a'),
+  HB_SCRIPT_THAI                    = HB_TAG ('T','h','a','i'),
+  HB_SCRIPT_TIBETAN                 = HB_TAG ('T','i','b','t'),
+  HB_SCRIPT_CANADIAN_ABORIGINAL     = HB_TAG ('C','a','n','s'),
+  HB_SCRIPT_YI                      = HB_TAG ('Y','i','i','i'),
+  HB_SCRIPT_TAGALOG                 = HB_TAG ('T','g','l','g'),
+  HB_SCRIPT_HANUNOO                 = HB_TAG ('H','a','n','o'),
+  HB_SCRIPT_BUHID                   = HB_TAG ('B','u','h','d'),
+  HB_SCRIPT_TAGBANWA                = HB_TAG ('T','a','g','b'),
+
+  /* Unicode-4.0 additions */
+  HB_SCRIPT_BRAILLE                 = HB_TAG ('B','r','a','i'),
+  HB_SCRIPT_CYPRIOT                 = HB_TAG ('C','p','r','t'),
+  HB_SCRIPT_LIMBU                   = HB_TAG ('L','i','m','b'),
+  HB_SCRIPT_OSMANYA                 = HB_TAG ('O','s','m','a'),
+  HB_SCRIPT_SHAVIAN                 = HB_TAG ('S','h','a','w'),
+  HB_SCRIPT_LINEAR_B                = HB_TAG ('L','i','n','b'),
+  HB_SCRIPT_TAI_LE                  = HB_TAG ('T','a','l','e'),
+  HB_SCRIPT_UGARITIC                = HB_TAG ('U','g','a','r'),
+
+  /* Unicode-4.1 additions */
+  HB_SCRIPT_NEW_TAI_LUE             = HB_TAG ('T','a','l','u'),
+  HB_SCRIPT_BUGINESE                = HB_TAG ('B','u','g','i'),
+  HB_SCRIPT_GLAGOLITIC              = HB_TAG ('G','l','a','g'),
+  HB_SCRIPT_TIFINAGH                = HB_TAG ('T','f','n','g'),
+  HB_SCRIPT_SYLOTI_NAGRI            = HB_TAG ('S','y','l','o'),
+  HB_SCRIPT_OLD_PERSIAN             = HB_TAG ('X','p','e','o'),
+  HB_SCRIPT_KHAROSHTHI              = HB_TAG ('K','h','a','r'),
+
+  /* Unicode-5.0 additions */
+  HB_SCRIPT_UNKNOWN                 = HB_TAG ('Z','z','z','z'),
+  HB_SCRIPT_BALINESE                = HB_TAG ('B','a','l','i'),
+  HB_SCRIPT_CUNEIFORM               = HB_TAG ('X','s','u','x'),
+  HB_SCRIPT_PHOENICIAN              = HB_TAG ('P','h','n','x'),
+  HB_SCRIPT_PHAGS_PA                = HB_TAG ('P','h','a','g'),
+  HB_SCRIPT_NKO                     = HB_TAG ('N','k','o','o'),
+
+  /* Unicode-5.1 additions */
+  HB_SCRIPT_KAYAH_LI                = HB_TAG ('K','a','l','i'),
+  HB_SCRIPT_LEPCHA                  = HB_TAG ('L','e','p','c'),
+  HB_SCRIPT_REJANG                  = HB_TAG ('R','j','n','g'),
+  HB_SCRIPT_SUNDANESE               = HB_TAG ('S','u','n','d'),
+  HB_SCRIPT_SAURASHTRA              = HB_TAG ('S','a','u','r'),
+  HB_SCRIPT_CHAM                    = HB_TAG ('C','h','a','m'),
+  HB_SCRIPT_OL_CHIKI                = HB_TAG ('O','l','c','k'),
+  HB_SCRIPT_VAI                     = HB_TAG ('V','a','i','i'),
+  HB_SCRIPT_CARIAN                  = HB_TAG ('C','a','r','i'),
+  HB_SCRIPT_LYCIAN                  = HB_TAG ('L','y','c','i'),
+  HB_SCRIPT_LYDIAN                  = HB_TAG ('L','y','d','i'),
+
+  /* Unicode-5.2 additions */
+  HB_SCRIPT_AVESTAN                 = HB_TAG ('A','v','s','t'),
+  HB_SCRIPT_BAMUM                   = HB_TAG ('B','a','m','u'),
+  HB_SCRIPT_EGYPTIAN_HIEROGLYPHS    = HB_TAG ('E','g','y','p'),
+  HB_SCRIPT_IMPERIAL_ARAMAIC        = HB_TAG ('A','r','m','i'),
+  HB_SCRIPT_INSCRIPTIONAL_PAHLAVI   = HB_TAG ('P','h','l','i'),
+  HB_SCRIPT_INSCRIPTIONAL_PARTHIAN  = HB_TAG ('P','r','t','i'),
+  HB_SCRIPT_JAVANESE                = HB_TAG ('J','a','v','a'),
+  HB_SCRIPT_KAITHI                  = HB_TAG ('K','t','h','i'),
+  HB_SCRIPT_LISU                    = HB_TAG ('L','i','s','u'),
+  HB_SCRIPT_MEETEI_MAYEK            = HB_TAG ('M','t','e','i'),
+  HB_SCRIPT_OLD_SOUTH_ARABIAN       = HB_TAG ('S','a','r','b'),
+  HB_SCRIPT_OLD_TURKIC              = HB_TAG ('O','r','k','h'),
+  HB_SCRIPT_SAMARITAN               = HB_TAG ('S','a','m','r'),
+  HB_SCRIPT_TAI_THAM                = HB_TAG ('L','a','n','a'),
+  HB_SCRIPT_TAI_VIET                = HB_TAG ('T','a','v','t'),
+
+  /* Unicode-6.0 additions */
+  HB_SCRIPT_BATAK                   = HB_TAG ('B','a','t','k'),
+  HB_SCRIPT_BRAHMI                  = HB_TAG ('B','r','a','h'),
+  HB_SCRIPT_MANDAIC                 = HB_TAG ('M','a','n','d'),
+
+  /* No script set */
+  HB_SCRIPT_INVALID                 = HB_TAG_NONE
+} hb_script_t;
+
+
+/* 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 */