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      1 /****************************************************************************
      2  *
      3  * cidparse.h
      4  *
      5  *   CID-keyed Type1 parser (specification).
      6  *
      7  * Copyright 1996-2018 by
      8  * David Turner, Robert Wilhelm, and Werner Lemberg.
      9  *
     10  * This file is part of the FreeType project, and may only be used,
     11  * modified, and distributed under the terms of the FreeType project
     12  * license, LICENSE.TXT.  By continuing to use, modify, or distribute
     13  * this file you indicate that you have read the license and
     14  * understand and accept it fully.
     15  *
     16  */
     17 
     18 
     19 #ifndef CIDPARSE_H_
     20 #define CIDPARSE_H_
     21 
     22 
     23 #include <ft2build.h>
     24 #include FT_INTERNAL_TYPE1_TYPES_H
     25 #include FT_INTERNAL_STREAM_H
     26 #include FT_INTERNAL_POSTSCRIPT_AUX_H
     27 
     28 
     29 FT_BEGIN_HEADER
     30 
     31 
     32   /**************************************************************************
     33    *
     34    * @Struct:
     35    *   CID_Parser
     36    *
     37    * @Description:
     38    *   A CID_Parser is an object used to parse a Type 1 fonts very
     39    *   quickly.
     40    *
     41    * @Fields:
     42    *   root ::
     43    *     The root PS_ParserRec fields.
     44    *
     45    *   stream ::
     46    *     The current input stream.
     47    *
     48    *   postscript ::
     49    *     A pointer to the data to be parsed.
     50    *
     51    *   postscript_len ::
     52    *     The length of the data to be parsed.
     53    *
     54    *   data_offset ::
     55    *     The start position of the binary data (i.e., the
     56    *     end of the data to be parsed.
     57    *
     58    *   binary_length ::
     59    *     The length of the data after the `StartData'
     60    *     command if the data format is hexadecimal.
     61    *
     62    *   cid ::
     63    *     A structure which holds the information about
     64    *     the current font.
     65    *
     66    *   num_dict ::
     67    *     The number of font dictionaries.
     68    */
     69   typedef struct  CID_Parser_
     70   {
     71     PS_ParserRec  root;
     72     FT_Stream     stream;
     73 
     74     FT_Byte*      postscript;
     75     FT_ULong      postscript_len;
     76 
     77     FT_ULong      data_offset;
     78 
     79     FT_ULong      binary_length;
     80 
     81     CID_FaceInfo  cid;
     82     FT_Int        num_dict;
     83 
     84   } CID_Parser;
     85 
     86 
     87   FT_LOCAL( FT_Error )
     88   cid_parser_new( CID_Parser*    parser,
     89                   FT_Stream      stream,
     90                   FT_Memory      memory,
     91                   PSAux_Service  psaux );
     92 
     93   FT_LOCAL( void )
     94   cid_parser_done( CID_Parser*  parser );
     95 
     96 
     97   /**************************************************************************
     98    *
     99    *                           PARSING ROUTINES
    100    *
    101    */
    102 
    103 #define cid_parser_skip_spaces( p )                 \
    104           (p)->root.funcs.skip_spaces( &(p)->root )
    105 #define cid_parser_skip_PS_token( p )                 \
    106           (p)->root.funcs.skip_PS_token( &(p)->root )
    107 
    108 #define cid_parser_to_int( p )       (p)->root.funcs.to_int( &(p)->root )
    109 #define cid_parser_to_fixed( p, t )  (p)->root.funcs.to_fixed( &(p)->root, t )
    110 
    111 #define cid_parser_to_coord_array( p, m, c )                 \
    112           (p)->root.funcs.to_coord_array( &(p)->root, m, c )
    113 #define cid_parser_to_fixed_array( p, m, f, t )                 \
    114           (p)->root.funcs.to_fixed_array( &(p)->root, m, f, t )
    115 #define cid_parser_to_token( p, t )                 \
    116           (p)->root.funcs.to_token( &(p)->root, t )
    117 #define cid_parser_to_token_array( p, t, m, c )                 \
    118           (p)->root.funcs.to_token_array( &(p)->root, t, m, c )
    119 
    120 #define cid_parser_load_field( p, f, o )                       \
    121           (p)->root.funcs.load_field( &(p)->root, f, o, 0, 0 )
    122 #define cid_parser_load_field_table( p, f, o )                       \
    123           (p)->root.funcs.load_field_table( &(p)->root, f, o, 0, 0 )
    124 
    125 
    126 FT_END_HEADER
    127 
    128 #endif /* CIDPARSE_H_ */
    129 
    130 
    131 /* END */
    132