kc3-lang/freetype/src/type1/t1tokens.h

• Show log

  Commit

• Hash : 7fa51b55
  Author :
  Date : 2000-07-08T19:51:42
  

  Formatting. Adding some trivial error checking. Adding/Fixing tracing levels.

Download

• src/type1/t1tokens.h

• /***************************************************************************/
  /*                                                                         */
  /*  t1tokens.h                                                             */
  /*                                                                         */
  /*    Type 1 tokenizer (specification).                                    */
  /*                                                                         */
  /*  Copyright 1996-2000 by                                                 */
  /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
  /*                                                                         */
  /*  This file is part of the FreeType project, and may only be used,       */
  /*  modified, and distributed under the terms of the FreeType project      */
  /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
  /*  this file you indicate that you have read the license and              */
  /*  understand and accept it fully.                                        */
  /*                                                                         */
  /***************************************************************************/
  
  
  #ifndef T1TOKENS_H
  #define T1TOKENS_H
  
  
  #ifdef FT_FLAT_COMPILE
  
  #include "t1objs.h"
  
  #else
  
  #include <type1/t1objs.h>
  
  #endif
  
  
  #ifdef __cplusplus
    extern "C" {
  #endif
  
  
    /* enum value of first keyword */
  #define key_first_  100
  
    /* enum value of first immediate name */
  #define imm_first_  200
  
  
    typedef enum  T1_TokenType_
    {
      tok_error = 0,
  
      tok_eof,             /* end of file                  */
  
      /* simple token types */
  
      tok_keyword,         /* keyword                      */
      tok_number,          /* number (integer or real)     */
      tok_string,          /* postscript string            */
      tok_program,         /* postscript program           */
      tok_immediate,       /* any immediate name           */
      tok_array,           /* matrix, array, etc..         */
      tok_hexarray,        /* array of hexadecimal nibbles */
      tok_any,             /* anything else                */
  
      /* Postscript keywords -- placed in lexicographical order */
  
      key_RD_alternate = key_first_,      /* `-|' = alternate form of RD */
      key_ExpertEncoding,
      key_ND,
      key_NP,
      key_RD,
      key_StandardEncoding,
      key_array,
      key_begin,
      key_closefile,
      key_currentdict,
      key_currentfile,
      key_def,
      key_dict,
      key_dup,
      key_eexec,
      key_end,
      key_execonly,
      key_false,
      key_for,
      key_index,
      key_noaccess,
      key_put,
      key_readonly,
      key_true,
      key_userdict,
      key_NP_alternate,                   /* `|' = alternate form of NP  */
      key_ND_alternate,                   /* `|-' = alternate form of ND */
  
      key_max,   /* always keep this value there */
  
      /* Postscript immediate names -- other names will be ignored, except */
      /* in charstrings                                                    */
  
      imm_RD_alternate = imm_first_,      /* `-|' = alternate form of RD */
      imm_notdef,                         /* `/.notdef' immediate        */
      imm_BlendAxisTypes,
      imm_BlueFuzz,
      imm_BlueScale,
      imm_BlueShift,
      imm_BlueValues,
      imm_CharStrings,
      imm_Encoding,
      imm_FamilyBlues,
      imm_FamilyName,
      imm_FamilyOtherBlues,
      imm_FID,
      imm_FontBBox,
      imm_FontID,
      imm_FontInfo,
      imm_FontMatrix,
      imm_FontName,
      imm_FontType,
      imm_ForceBold,
      imm_FullName,
      imm_ItalicAngle,
      imm_LanguageGroup,
      imm_Metrics,
      imm_MinFeature,
      imm_ND,
      imm_NP,
      imm_Notice,
      imm_OtherBlues,
      imm_OtherSubrs,
      imm_PaintType,
      imm_Private,
      imm_RD,
      imm_RndStemUp,
      imm_StdHW,
      imm_StdVW,
      imm_StemSnapH,
      imm_StemSnapV,
      imm_StrokeWidth,
      imm_Subrs,
      imm_UnderlinePosition,
      imm_UnderlineThickness,
      imm_UniqueID,
      imm_Weight,
  
      imm_isFixedPitch,
      imm_lenIV,
      imm_password,
      imm_version,
  
      imm_NP_alternate,                   /* `|'  = alternate form of NP */
      imm_ND_alternate,                   /* `|-' = alternate form of ND */
  
      imm_max   /* always keep this value here */
  
    } T1_TokenType;
  
  
    /* these arrays are visible for debugging purposes */
    extern const char*  t1_keywords[];
    extern const char*  t1_immediates[];
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Struct>                                                              */
    /*    T1_Token                                                           */
    /*                                                                       */
    /* <Description>                                                         */
    /*    A structure used to describe a token in the current input stream.  */
    /*    Note that the Type1 driver doesn't try to interpret tokens until   */
    /*    it really needs to.                                                */
    /*                                                                       */
    /* <Fields>                                                              */
    /*    kind  :: The token type.  Describes the token to the loader.       */
    /*                                                                       */
    /*    kind2 :: Detailed token type.                                      */
    /*                                                                       */
    /*    start :: The index of the first character of token in the input    */
    /*             stream.                                                   */
    /*                                                                       */
    /*    len   :: The length of the token in characters.                    */
    /*                                                                       */
    typedef struct  T1_Token_
    {
      T1_TokenType  kind;     /* simple type                    */
      T1_TokenType  kind2;    /* detailed type                  */
      FT_Int        start;    /* index of first token character */
      FT_Int        len;      /* length of token in chars       */
  
    } T1_Token;
  
  
    typedef struct  T1_TokenParser_
    {
      FT_Memory  memory;
      FT_Stream  stream;
  
      FT_Bool    in_pfb;      /* true if PFB file, PFA otherwise */
      FT_Bool    in_private;  /* true if in private dictionary   */
  
      FT_Byte*   base;        /* base address of current read buffer */
      FT_Long    cursor;      /* current position in read buffer     */
      FT_Long    limit;       /* limit of current read buffer        */
      FT_Long    max;         /* maximum size of read buffer         */
  
      FT_Error   error;       /* last error                          */
      T1_Token   token;       /* last token read                     */
  
    } T1_TokenParser;
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Type>                                                                */
    /*    T1_Tokenizer                                                       */
    /*                                                                       */
    /* <Description>                                                         */
    /*    A handle to an object used to extract tokens from the input.  The  */
    /*    object is able to perform PFA/PFB recognition, eexec decryption of */
    /*    the private dictionary, as well as eexec decryption of the         */
    /*    charstrings.                                                       */
    /*                                                                       */
    typedef T1_TokenParser*  T1_Tokenizer;
  
  
    LOCAL_DEF
    FT_Error  New_Tokenizer( FT_Stream      stream,
                             T1_Tokenizer*  tokenizer );
  
    LOCAL_DEF
    FT_Error  Done_Tokenizer( T1_Tokenizer  tokenizer );
  
    LOCAL_DEF
    FT_Error  Open_PrivateDict( T1_Tokenizer  tokenizer );
  
    LOCAL_DEF
    FT_Error  Read_Token( T1_Tokenizer  tokenizer );
  
  
  #if 0
    LOCAL_DEF
    FT_Error  Read_CharStrings( T1_Tokenizer  tokenizer,
                                FT_Int        num_chars,
                                FT_Byte*      buffer );
  #endif /* 0 */
  
    LOCAL_DEF
    void  t1_decrypt( FT_Byte*   buffer,
                      FT_Int     length,
                      FT_UShort  seed );
  
  
  #ifdef __cplusplus
    }
  #endif
  
  #endif /* T1TOKENS_H */
  
  
  /* END */
  

Download