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      1 /* This file has been generated by the Perl script `afblue.pl', */
      2 /* using data from file `afblue.dat'.                           */
      3 
      4 /***************************************************************************/
      5 /*                                                                         */
      6 /*  afblue.h                                                               */
      7 /*                                                                         */
      8 /*    Auto-fitter data for blue strings (specification).                   */
      9 /*                                                                         */
     10 /*  Copyright 2013, 2014 by                                                */
     11 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
     12 /*                                                                         */
     13 /*  This file is part of the FreeType project, and may only be used,       */
     14 /*  modified, and distributed under the terms of the FreeType project      */
     15 /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
     16 /*  this file you indicate that you have read the license and              */
     17 /*  understand and accept it fully.                                        */
     18 /*                                                                         */
     19 /***************************************************************************/
     20 
     21 
     22 #ifndef __AFBLUE_H__
     23 #define __AFBLUE_H__
     24 
     25 
     26 FT_BEGIN_HEADER
     27 
     28 
     29   /* an auxiliary macro to decode a UTF-8 character -- since we only use */
     30   /* hard-coded, self-converted data, no error checking is performed     */
     31 #define GET_UTF8_CHAR( ch, p )                    \
     32           ch = (unsigned char)*p++;               \
     33           if ( ch >= 0x80 )                       \
     34           {                                       \
     35             FT_UInt  len;                         \
     36                                                   \
     37                                                   \
     38             if ( ch < 0xE0 )                      \
     39             {                                     \
     40               len = 1;                            \
     41               ch &= 0x1F;                         \
     42             }                                     \
     43             else if ( ch < 0xF0 )                 \
     44             {                                     \
     45               len = 2;                            \
     46               ch &= 0x0F;                         \
     47             }                                     \
     48             else                                  \
     49             {                                     \
     50               len = 3;                            \
     51               ch &= 0x07;                         \
     52             }                                     \
     53                                                   \
     54             for ( ; len > 0; len-- )              \
     55               ch = ( ch << 6 ) | ( *p++ & 0x3F ); \
     56           }
     57 
     58 
     59   /*************************************************************************/
     60   /*************************************************************************/
     61   /*****                                                               *****/
     62   /*****                    B L U E   S T R I N G S                    *****/
     63   /*****                                                               *****/
     64   /*************************************************************************/
     65   /*************************************************************************/
     66 
     67   /* At the bottommost level, we define strings for finding blue zones. */
     68 
     69 
     70 #define AF_BLUE_STRING_MAX_LEN  51
     71 
     72   /* The AF_Blue_String enumeration values are offsets into the */
     73   /* `af_blue_strings' array.                                   */
     74 
     75   typedef enum  AF_Blue_String_
     76   {
     77     AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP = 0,
     78     AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM = 17,
     79     AF_BLUE_STRING_CYRILLIC_SMALL = 34,
     80     AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER = 51,
     81     AF_BLUE_STRING_DEVANAGARI_BASE = 58,
     82     AF_BLUE_STRING_DEVANAGARI_TOP = 83,
     83     AF_BLUE_STRING_DEVANAGARI_HEAD = 108,
     84     AF_BLUE_STRING_DEVANAGARI_BOTTOM = 133,
     85     AF_BLUE_STRING_GREEK_CAPITAL_TOP = 140,
     86     AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM = 155,
     87     AF_BLUE_STRING_GREEK_SMALL_BETA_TOP = 168,
     88     AF_BLUE_STRING_GREEK_SMALL = 181,
     89     AF_BLUE_STRING_GREEK_SMALL_DESCENDER = 198,
     90     AF_BLUE_STRING_HEBREW_TOP = 215,
     91     AF_BLUE_STRING_HEBREW_BOTTOM = 232,
     92     AF_BLUE_STRING_HEBREW_DESCENDER = 245,
     93     AF_BLUE_STRING_LATIN_CAPITAL_TOP = 256,
     94     AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM = 265,
     95     AF_BLUE_STRING_LATIN_SMALL_F_TOP = 274,
     96     AF_BLUE_STRING_LATIN_SMALL = 282,
     97     AF_BLUE_STRING_LATIN_SMALL_DESCENDER = 290,
     98     af_blue_1_1 = 295,
     99 #ifdef AF_CONFIG_OPTION_CJK
    100     AF_BLUE_STRING_CJK_TOP = af_blue_1_1 + 1,
    101     AF_BLUE_STRING_CJK_BOTTOM = af_blue_1_1 + 153,
    102     af_blue_1_1_1 = af_blue_1_1 + 304,
    103 #ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
    104     AF_BLUE_STRING_CJK_LEFT = af_blue_1_1_1 + 1,
    105     AF_BLUE_STRING_CJK_RIGHT = af_blue_1_1_1 + 153,
    106     af_blue_1_1_2 = af_blue_1_1_1 + 304,
    107 #else
    108     af_blue_1_1_2 = af_blue_1_1_1 + 0,
    109 #endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
    110     af_blue_1_2 = af_blue_1_1_2 + 0,
    111 #else
    112     af_blue_1_2 = af_blue_1_1 + 0,
    113 #endif /* AF_CONFIG_OPTION_CJK                */
    114 
    115 
    116     AF_BLUE_STRING_MAX   /* do not remove */
    117 
    118   } AF_Blue_String;
    119 
    120 
    121   FT_LOCAL_ARRAY( char )
    122   af_blue_strings[];
    123 
    124 
    125   /*************************************************************************/
    126   /*************************************************************************/
    127   /*****                                                               *****/
    128   /*****                 B L U E   S T R I N G S E T S                 *****/
    129   /*****                                                               *****/
    130   /*************************************************************************/
    131   /*************************************************************************/
    132 
    133   /* The next level is to group blue strings into style-specific sets. */
    134 
    135 
    136   /* Properties are specific to a writing system.  We assume that a given  */
    137   /* blue string can't be used in more than a single writing system, which */
    138   /* is a safe bet.                                                        */
    139 #define AF_BLUE_PROPERTY_LATIN_TOP       ( 1 << 0 )   /* must have value 1 */
    140 #define AF_BLUE_PROPERTY_LATIN_NEUTRAL   ( 1 << 1 )
    141 #define AF_BLUE_PROPERTY_LATIN_X_HEIGHT  ( 1 << 2 )
    142 #define AF_BLUE_PROPERTY_LATIN_LONG      ( 1 << 3 )
    143 
    144 #define AF_BLUE_PROPERTY_CJK_TOP    ( 1 << 0 )        /* must have value 1 */
    145 #define AF_BLUE_PROPERTY_CJK_HORIZ  ( 1 << 1 )        /* must have value 2 */
    146 #define AF_BLUE_PROPERTY_CJK_RIGHT  AF_BLUE_PROPERTY_CJK_TOP
    147 
    148 
    149 #define AF_BLUE_STRINGSET_MAX_LEN  7
    150 
    151   /* The AF_Blue_Stringset enumeration values are offsets into the */
    152   /* `af_blue_stringsets' array.                                   */
    153 
    154   typedef enum  AF_Blue_Stringset_
    155   {
    156     AF_BLUE_STRINGSET_CYRL = 0,
    157     AF_BLUE_STRINGSET_DEVA = 6,
    158     AF_BLUE_STRINGSET_GREK = 12,
    159     AF_BLUE_STRINGSET_HEBR = 19,
    160     AF_BLUE_STRINGSET_LATN = 23,
    161     af_blue_2_1 = 30,
    162 #ifdef AF_CONFIG_OPTION_CJK
    163     AF_BLUE_STRINGSET_HANI = af_blue_2_1 + 0,
    164     af_blue_2_1_1 = af_blue_2_1 + 2,
    165 #ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
    166     af_blue_2_1_2 = af_blue_2_1_1 + 2,
    167 #else
    168     af_blue_2_1_2 = af_blue_2_1_1 + 0,
    169 #endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
    170     af_blue_2_2 = af_blue_2_1_2 + 1,
    171 #else
    172     af_blue_2_2 = af_blue_2_1 + 0,
    173 #endif /* AF_CONFIG_OPTION_CJK                */
    174 
    175 
    176     AF_BLUE_STRINGSET_MAX   /* do not remove */
    177 
    178   } AF_Blue_Stringset;
    179 
    180 
    181   typedef struct  AF_Blue_StringRec_
    182   {
    183     AF_Blue_String  string;
    184     FT_UShort       properties;
    185 
    186   } AF_Blue_StringRec;
    187 
    188 
    189   FT_LOCAL_ARRAY( AF_Blue_StringRec )
    190   af_blue_stringsets[];
    191 
    192 /* */
    193 
    194 FT_END_HEADER
    195 
    196 
    197 #endif /* __AFBLUE_H__ */
    198 
    199 
    200 /* END */
    201