cffparse.h revision 295ffce55e0198e7a9f7d46b33f5c2b4147bf821 
1/***************************************************************************/
2/*                                                                         */
3/*  cffparse.h                                                             */
4/*                                                                         */
5/*    CFF token stream parser (specification)                              */
6/*                                                                         */
7/*  Copyright 1996-2001, 2002, 2003 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 __CFF_PARSE_H__
20#define __CFF_PARSE_H__
21
22
23#include <ft2build.h>
24#include "cfftypes.h"
25#include FT_INTERNAL_OBJECTS_H
26
27
28FT_BEGIN_HEADER
29
30
31#define CFF_MAX_STACK_DEPTH  96
32
33#define CFF_CODE_TOPDICT  0x1000
34#define CFF_CODE_PRIVATE  0x2000
35
36
37  typedef struct  CFF_ParserRec_
38  {
39    FT_Library library;
40    FT_Byte*   start;
41    FT_Byte*   limit;
42    FT_Byte*   cursor;
43
44    FT_Byte*   stack[CFF_MAX_STACK_DEPTH + 1];
45    FT_Byte**  top;
46
47    FT_UInt    object_code;
48    void*      object;
49
50  } CFF_ParserRec, *CFF_Parser;
51
52
53  FT_LOCAL( void )
54  cff_parser_init( CFF_Parser  parser,
55                   FT_UInt     code,
56                   void*       object,
57                   FT_Library  library);
58
59  FT_LOCAL( FT_Error )
60  cff_parser_run( CFF_Parser  parser,
61                  FT_Byte*    start,
62                  FT_Byte*    limit );
63
64
65  enum
66  {
67    cff_kind_none = 0,
68    cff_kind_num,
69    cff_kind_fixed,
70    cff_kind_fixed_thousand,
71    cff_kind_string,
72    cff_kind_bool,
73    cff_kind_delta,
74    cff_kind_callback,
75
76    cff_kind_max  /* do not remove */
77  };
78
79
80  /* now generate handlers for the most simple fields */
81  typedef FT_Error  (*CFF_Field_Reader)( CFF_Parser  parser );
82
83  typedef struct  CFF_Field_Handler_
84  {
85    int               kind;
86    int               code;
87    FT_UInt           offset;
88    FT_Byte           size;
89    CFF_Field_Reader  reader;
90    FT_UInt           array_max;
91    FT_UInt           count_offset;
92
93  } CFF_Field_Handler;
94
95
96FT_END_HEADER
97
98
99#endif /* __CFF_PARSE_H__ */
100
101
102/* END */
103