t1tokens.h

Qt/Embedded是一个多平台的C++图形用户界面应用程序框架

/*******************************************************************
 *
 *  t1tokens.h
 *
 *  Type 1 tokenizer
 *
 *  Copyright 1996 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.
 *
 *  The tokenizer is in charge of loading and reading a Type1 font
 *  file (either in PFB or PFA format), and extract successive tokens
 *  and keywords from its two streams (i.e. the font program, and the
 *  private dictionary).
 *
 *  Eexec decryption is performed automatically when entering the
 *  private dictionary, or when retrieving char strings..
 *
 ******************************************************************/

#ifndef T1TOKENS_H
#define T1TOKENS_H

#include <t1objs.h>

/* 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_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  :: token type. Describes the token to the loader            */
 /*     kind2 :: detailed token type.                                     */
 /*                                                                       */
 /*     start ::  index of first character of token in input stream       */
 /*                                                                       */
 /*     len   ::  length of token in characters.                          */
 /*                                                                       */
  typedef struct T1_Token_
  {
    T1_TokenType   kind;     /* simple type                    */
    T1_TokenType   kind2;    /* detailed type                  */
    T1_Int         start;    /* index of first token character */
    T1_Int         len;      /* length of token in chars       */

  } T1_Token;