afmparse.c File Reference

#include <ft2build.h>
#include "afmparse.h"
#include "psconv.h"
#include "psauxerr.h"

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Go to the source code of this file.

Classes
struct	AFM_StreamRec_

Macros
#define	EOF   -1
#define	AFM_IS_NEWLINE(ch)   ( (ch) == '\r' || (ch) == '\n' )
#define	AFM_IS_EOF(ch)   ( (ch) == EOF || (ch) == '\x1a' )
#define	AFM_IS_SPACE(ch)   ( (ch) == ' ' || (ch) == '\t' )
#define	AFM_IS_SEP(ch)   ( (ch) == ';' )
#define	AFM_GETC()
#define	AFM_STREAM_KEY_BEGIN(stream)    (char*)( (stream)->cursor - 1 )
#define	AFM_STREAM_KEY_LEN(stream, key)    (FT_Offset)( (char*)(stream)->cursor - key - 1 )
#define	AFM_STATUS_EOC(stream)    ( (stream)->status >= AFM_STREAM_STATUS_EOC )
#define	AFM_STATUS_EOL(stream)    ( (stream)->status >= AFM_STREAM_STATUS_EOL )
#define	AFM_STATUS_EOF(stream)    ( (stream)->status >= AFM_STREAM_STATUS_EOF )
#define	KERN_INDEX(g1, g2)   ( ( (FT_ULong)g1 << 16 ) | g2 )

Typedefs
typedef struct AFM_StreamRec_	AFM_StreamRec
typedef enum AFM_Token_	AFM_Token

Enumerations
enum	{ AFM_STREAM_STATUS_NORMAL , AFM_STREAM_STATUS_EOC , AFM_STREAM_STATUS_EOL , AFM_STREAM_STATUS_EOF }
enum	AFM_Token_ {   AFM_TOKEN_ASCENDER , AFM_TOKEN_AXISLABEL , AFM_TOKEN_AXISTYPE , AFM_TOKEN_B ,   AFM_TOKEN_BLENDAXISTYPES , AFM_TOKEN_BLENDDESIGNMAP , AFM_TOKEN_BLENDDESIGNPOSITIONS , AFM_TOKEN_C ,   AFM_TOKEN_CC , AFM_TOKEN_CH , AFM_TOKEN_CAPHEIGHT , AFM_TOKEN_CHARWIDTH ,   AFM_TOKEN_CHARACTERSET , AFM_TOKEN_CHARACTERS , AFM_TOKEN_DESCENDER , AFM_TOKEN_ENCODINGSCHEME ,   AFM_TOKEN_ENDAXIS , AFM_TOKEN_ENDCHARMETRICS , AFM_TOKEN_ENDCOMPOSITES , AFM_TOKEN_ENDDIRECTION ,   AFM_TOKEN_ENDFONTMETRICS , AFM_TOKEN_ENDKERNDATA , AFM_TOKEN_ENDKERNPAIRS , AFM_TOKEN_ENDTRACKKERN ,   AFM_TOKEN_ESCCHAR , AFM_TOKEN_FAMILYNAME , AFM_TOKEN_FONTBBOX , AFM_TOKEN_FONTNAME ,   AFM_TOKEN_FULLNAME , AFM_TOKEN_ISBASEFONT , AFM_TOKEN_ISCIDFONT , AFM_TOKEN_ISFIXEDPITCH ,   AFM_TOKEN_ISFIXEDV , AFM_TOKEN_ITALICANGLE , AFM_TOKEN_KP , AFM_TOKEN_KPH ,   AFM_TOKEN_KPX , AFM_TOKEN_KPY , AFM_TOKEN_L , AFM_TOKEN_MAPPINGSCHEME ,   AFM_TOKEN_METRICSSETS , AFM_TOKEN_N , AFM_TOKEN_NOTICE , AFM_TOKEN_PCC ,   AFM_TOKEN_STARTAXIS , AFM_TOKEN_STARTCHARMETRICS , AFM_TOKEN_STARTCOMPOSITES , AFM_TOKEN_STARTDIRECTION ,   AFM_TOKEN_STARTFONTMETRICS , AFM_TOKEN_STARTKERNDATA , AFM_TOKEN_STARTKERNPAIRS , AFM_TOKEN_STARTKERNPAIRS0 ,   AFM_TOKEN_STARTKERNPAIRS1 , AFM_TOKEN_STARTTRACKKERN , AFM_TOKEN_STDHW , AFM_TOKEN_STDVW ,   AFM_TOKEN_TRACKKERN , AFM_TOKEN_UNDERLINEPOSITION , AFM_TOKEN_UNDERLINETHICKNESS , AFM_TOKEN_VV ,   AFM_TOKEN_VVECTOR , AFM_TOKEN_VERSION , AFM_TOKEN_W , AFM_TOKEN_W0 ,   AFM_TOKEN_W0X , AFM_TOKEN_W0Y , AFM_TOKEN_W1 , AFM_TOKEN_W1X ,   AFM_TOKEN_W1Y , AFM_TOKEN_WX , AFM_TOKEN_WY , AFM_TOKEN_WEIGHT ,   AFM_TOKEN_WEIGHTVECTOR , AFM_TOKEN_XHEIGHT , N_AFM_TOKENS , AFM_TOKEN_UNKNOWN }

Functions
static int	afm_stream_skip_spaces (AFM_Stream stream)
static char *	afm_stream_read_one (AFM_Stream stream)
static char *	afm_stream_read_string (AFM_Stream stream)
	afm_parser_read_vals (AFM_Parser parser, AFM_Value vals, FT_Int n)
	afm_parser_next_key (AFM_Parser parser, FT_Bool line, FT_Offset *len)
static AFM_Token	afm_tokenize (const char *key, FT_Offset len)
	afm_parser_init (AFM_Parser parser, FT_Memory memory, FT_Byte *base, FT_Byte *limit)
	afm_parser_done (AFM_Parser parser)
static FT_Error	afm_parser_read_int (AFM_Parser parser, FT_Int *aint)
static FT_Error	afm_parse_track_kern (AFM_Parser parser)
	afm_compare_kern_pairs (const void *a, const void *b)
static FT_Error	afm_parse_kern_pairs (AFM_Parser parser)
static FT_Error	afm_parse_kern_data (AFM_Parser parser)
static FT_Error	afm_parser_skip_section (AFM_Parser parser, FT_Int n, AFM_Token end_section)
	afm_parser_parse (AFM_Parser parser)

Variables
static const char *const	afm_key_table [N_AFM_TOKENS]

Macro Definition Documentation

AFM_GETC

#define AFM_GETC

(

)

Value:

          ( ( (stream)->cursor < (stream)->limit ) ? *(stream)->cursor++ \
                                                   : EOF )

Definition at line 73 of file afmparse.c.

AFM_IS_EOF

#define AFM_IS_EOF

(

ch

)

( (ch) == EOF || (ch) == '\x1a' )

Definition at line 67 of file afmparse.c.

AFM_IS_NEWLINE

#define AFM_IS_NEWLINE

(

ch

)

( (ch) == '\r' || (ch) == '\n' )

Definition at line 65 of file afmparse.c.

AFM_IS_SEP

#define AFM_IS_SEP

(

ch

)

( (ch) == ';' )

Definition at line 71 of file afmparse.c.

AFM_IS_SPACE

#define AFM_IS_SPACE

(

ch

)

( (ch) == ' ' || (ch) == '\t' )

Definition at line 68 of file afmparse.c.

AFM_STATUS_EOC

#define AFM_STATUS_EOC

(

stream

)

( (stream)->status >= AFM_STREAM_STATUS_EOC )

Definition at line 83 of file afmparse.c.

AFM_STATUS_EOF

#define AFM_STATUS_EOF

(

stream

)

( (stream)->status >= AFM_STREAM_STATUS_EOF )

Definition at line 89 of file afmparse.c.

AFM_STATUS_EOL

#define AFM_STATUS_EOL

(

stream

)

( (stream)->status >= AFM_STREAM_STATUS_EOL )

Definition at line 86 of file afmparse.c.

AFM_STREAM_KEY_BEGIN

#define AFM_STREAM_KEY_BEGIN

(

stream

)

(char*)( (stream)->cursor - 1 )

Definition at line 77 of file afmparse.c.

AFM_STREAM_KEY_LEN

#define AFM_STREAM_KEY_LEN	(		stream,
			key
	)		(FT_Offset)( (char*)(stream)->cursor - key - 1 )

Definition at line 80 of file afmparse.c.

EOF

#define EOF   -1

Definition at line 60 of file afmparse.c.

KERN_INDEX

#define KERN_INDEX	(		g1,
			g2
	)		( ( (FT_ULong)g1 << 16 ) | g2 )

Definition at line 667 of file afmparse.c.

Typedef Documentation

AFM_StreamRec

typedef struct AFM_StreamRec_ AFM_StreamRec

AFM_Token

typedef enum AFM_Token_ AFM_Token

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
AFM_STREAM_STATUS_NORMAL
AFM_STREAM_STATUS_EOC
AFM_STREAM_STATUS_EOL
AFM_STREAM_STATUS_EOF

Definition at line 39 of file afmparse.c.

  {
    AFM_STREAM_STATUS_NORMAL,
    AFM_STREAM_STATUS_EOC,
    AFM_STREAM_STATUS_EOL,
    AFM_STREAM_STATUS_EOF
  };

AFM_Token_

enum AFM_Token_

Enumerator
AFM_TOKEN_ASCENDER
AFM_TOKEN_AXISLABEL
AFM_TOKEN_AXISTYPE
AFM_TOKEN_B
AFM_TOKEN_BLENDAXISTYPES
AFM_TOKEN_BLENDDESIGNMAP
AFM_TOKEN_BLENDDESIGNPOSITIONS
AFM_TOKEN_C
AFM_TOKEN_CC
AFM_TOKEN_CH
AFM_TOKEN_CAPHEIGHT
AFM_TOKEN_CHARWIDTH
AFM_TOKEN_CHARACTERSET
AFM_TOKEN_CHARACTERS
AFM_TOKEN_DESCENDER
AFM_TOKEN_ENCODINGSCHEME
AFM_TOKEN_ENDAXIS
AFM_TOKEN_ENDCHARMETRICS
AFM_TOKEN_ENDCOMPOSITES
AFM_TOKEN_ENDDIRECTION
AFM_TOKEN_ENDFONTMETRICS
AFM_TOKEN_ENDKERNDATA
AFM_TOKEN_ENDKERNPAIRS
AFM_TOKEN_ENDTRACKKERN
AFM_TOKEN_ESCCHAR
AFM_TOKEN_FAMILYNAME
AFM_TOKEN_FONTBBOX
AFM_TOKEN_FONTNAME
AFM_TOKEN_FULLNAME
AFM_TOKEN_ISBASEFONT
AFM_TOKEN_ISCIDFONT
AFM_TOKEN_ISFIXEDPITCH
AFM_TOKEN_ISFIXEDV
AFM_TOKEN_ITALICANGLE
AFM_TOKEN_KP
AFM_TOKEN_KPH
AFM_TOKEN_KPX
AFM_TOKEN_KPY
AFM_TOKEN_L
AFM_TOKEN_MAPPINGSCHEME
AFM_TOKEN_METRICSSETS
AFM_TOKEN_N
AFM_TOKEN_NOTICE
AFM_TOKEN_PCC
AFM_TOKEN_STARTAXIS
AFM_TOKEN_STARTCHARMETRICS
AFM_TOKEN_STARTCOMPOSITES
AFM_TOKEN_STARTDIRECTION
AFM_TOKEN_STARTFONTMETRICS
AFM_TOKEN_STARTKERNDATA
AFM_TOKEN_STARTKERNPAIRS
AFM_TOKEN_STARTKERNPAIRS0
AFM_TOKEN_STARTKERNPAIRS1
AFM_TOKEN_STARTTRACKKERN
AFM_TOKEN_STDHW
AFM_TOKEN_STDVW
AFM_TOKEN_TRACKKERN
AFM_TOKEN_UNDERLINEPOSITION
AFM_TOKEN_UNDERLINETHICKNESS
AFM_TOKEN_VV
AFM_TOKEN_VVECTOR
AFM_TOKEN_VERSION
AFM_TOKEN_W
AFM_TOKEN_W0
AFM_TOKEN_W0X
AFM_TOKEN_W0Y
AFM_TOKEN_W1
AFM_TOKEN_W1X
AFM_TOKEN_W1Y
AFM_TOKEN_WX
AFM_TOKEN_WY
AFM_TOKEN_WEIGHT
AFM_TOKEN_WEIGHTVECTOR
AFM_TOKEN_XHEIGHT
N_AFM_TOKENS
AFM_TOKEN_UNKNOWN

Definition at line 203 of file afmparse.c.

  {
    AFM_TOKEN_ASCENDER,
    AFM_TOKEN_AXISLABEL,
    AFM_TOKEN_AXISTYPE,
    AFM_TOKEN_B,
    AFM_TOKEN_BLENDAXISTYPES,
    AFM_TOKEN_BLENDDESIGNMAP,
    AFM_TOKEN_BLENDDESIGNPOSITIONS,
    AFM_TOKEN_C,
    AFM_TOKEN_CC,
    AFM_TOKEN_CH,
    AFM_TOKEN_CAPHEIGHT,
    AFM_TOKEN_CHARWIDTH,
    AFM_TOKEN_CHARACTERSET,
    AFM_TOKEN_CHARACTERS,
    AFM_TOKEN_DESCENDER,
    AFM_TOKEN_ENCODINGSCHEME,
    AFM_TOKEN_ENDAXIS,
    AFM_TOKEN_ENDCHARMETRICS,
    AFM_TOKEN_ENDCOMPOSITES,
    AFM_TOKEN_ENDDIRECTION,
    AFM_TOKEN_ENDFONTMETRICS,
    AFM_TOKEN_ENDKERNDATA,
    AFM_TOKEN_ENDKERNPAIRS,
    AFM_TOKEN_ENDTRACKKERN,
    AFM_TOKEN_ESCCHAR,
    AFM_TOKEN_FAMILYNAME,
    AFM_TOKEN_FONTBBOX,
    AFM_TOKEN_FONTNAME,
    AFM_TOKEN_FULLNAME,
    AFM_TOKEN_ISBASEFONT,
    AFM_TOKEN_ISCIDFONT,
    AFM_TOKEN_ISFIXEDPITCH,
    AFM_TOKEN_ISFIXEDV,
    AFM_TOKEN_ITALICANGLE,
    AFM_TOKEN_KP,
    AFM_TOKEN_KPH,
    AFM_TOKEN_KPX,
    AFM_TOKEN_KPY,
    AFM_TOKEN_L,
    AFM_TOKEN_MAPPINGSCHEME,
    AFM_TOKEN_METRICSSETS,
    AFM_TOKEN_N,
    AFM_TOKEN_NOTICE,
    AFM_TOKEN_PCC,
    AFM_TOKEN_STARTAXIS,
    AFM_TOKEN_STARTCHARMETRICS,
    AFM_TOKEN_STARTCOMPOSITES,
    AFM_TOKEN_STARTDIRECTION,
    AFM_TOKEN_STARTFONTMETRICS,
    AFM_TOKEN_STARTKERNDATA,
    AFM_TOKEN_STARTKERNPAIRS,
    AFM_TOKEN_STARTKERNPAIRS0,
    AFM_TOKEN_STARTKERNPAIRS1,
    AFM_TOKEN_STARTTRACKKERN,
    AFM_TOKEN_STDHW,
    AFM_TOKEN_STDVW,
    AFM_TOKEN_TRACKKERN,
    AFM_TOKEN_UNDERLINEPOSITION,
    AFM_TOKEN_UNDERLINETHICKNESS,
    AFM_TOKEN_VV,
    AFM_TOKEN_VVECTOR,
    AFM_TOKEN_VERSION,
    AFM_TOKEN_W,
    AFM_TOKEN_W0,
    AFM_TOKEN_W0X,
    AFM_TOKEN_W0Y,
    AFM_TOKEN_W1,
    AFM_TOKEN_W1X,
    AFM_TOKEN_W1Y,
    AFM_TOKEN_WX,
    AFM_TOKEN_WY,
    AFM_TOKEN_WEIGHT,
    AFM_TOKEN_WEIGHTVECTOR,
    AFM_TOKEN_XHEIGHT,
    N_AFM_TOKENS,
    AFM_TOKEN_UNKNOWN
 
  } AFM_Token;

Function Documentation

afm_compare_kern_pairs()

afm_compare_kern_pairs	(	const void *	a,
		const void *	b
	)

Definition at line 672 of file afmparse.c.

  {
    AFM_KernPair  kp1 = (AFM_KernPair)a;
    AFM_KernPair  kp2 = (AFM_KernPair)b;
 
    FT_ULong  index1 = KERN_INDEX( kp1->index1, kp1->index2 );
    FT_ULong  index2 = KERN_INDEX( kp2->index1, kp2->index2 );
 
 
    if ( index1 > index2 )
      return 1;
    else if ( index1 < index2 )
      return -1;
    else
      return 0;
  }

Referenced by afm_parse_kern_pairs().

afm_parse_kern_data()

static FT_Error afm_parse_kern_data ( AFM_Parser  parser )

static

Definition at line 790 of file afmparse.c.

  {
    FT_Error   error;
    char*      key;
    FT_Offset  len;
 
 
    while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 )
    {
      switch ( afm_tokenize( key, len ) )
      {
      case AFM_TOKEN_STARTTRACKKERN:
        error = afm_parse_track_kern( parser );
        if ( error )
          return error;
        break;
 
      case AFM_TOKEN_STARTKERNPAIRS:
      case AFM_TOKEN_STARTKERNPAIRS0:
        error = afm_parse_kern_pairs( parser );
        if ( error )
          return error;
        break;
 
      case AFM_TOKEN_ENDKERNDATA:
      case AFM_TOKEN_ENDFONTMETRICS:
        return FT_Err_Ok;
 
      case AFM_TOKEN_UNKNOWN:
        break;
 
      default:
        goto Fail;
      }
    }
 
  Fail:
    return FT_THROW( Syntax_Error );
  }

Referenced by afm_parser_parse().

afm_parse_kern_pairs()

static FT_Error afm_parse_kern_pairs ( AFM_Parser  parser )

static

Definition at line 692 of file afmparse.c.

  {
    AFM_FontInfo  fi = parser->FontInfo;
    AFM_KernPair  kp;
    char*         key;
    FT_Offset     len;
    int           n = -1;
    FT_Int        tmp;
 
 
    if ( afm_parser_read_int( parser, &tmp ) )
      goto Fail;
 
    if ( tmp < 0 )
      goto Fail;
 
    fi->NumKernPair = (FT_UInt)tmp;
 
    if ( fi->NumKernPair )
    {
      FT_Memory  memory = parser->memory;
      FT_Error   error;
 
 
      if ( FT_QNEW_ARRAY( fi->KernPairs, fi->NumKernPair ) )
        return error;
    }
 
    while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 )
    {
      AFM_Token  token = afm_tokenize( key, len );
 
 
      switch ( token )
      {
      case AFM_TOKEN_KP:
      case AFM_TOKEN_KPX:
      case AFM_TOKEN_KPY:
        {
          FT_Int        r;
          AFM_ValueRec  shared_vals[4];
 
 
          n++;
 
          if ( n >= (int)fi->NumKernPair )
            goto Fail;
 
          kp = fi->KernPairs + n;
 
          shared_vals[0].type = AFM_VALUE_TYPE_INDEX;
          shared_vals[1].type = AFM_VALUE_TYPE_INDEX;
          shared_vals[2].type = AFM_VALUE_TYPE_INTEGER;
          shared_vals[3].type = AFM_VALUE_TYPE_INTEGER;
          r = afm_parser_read_vals( parser, shared_vals, 4 );
          if ( r < 3 )
            goto Fail;
 
          /* index values can't be negative */
          kp->index1 = shared_vals[0].u.u;
          kp->index2 = shared_vals[1].u.u;
          if ( token == AFM_TOKEN_KPY )
          {
            kp->x = 0;
            kp->y = shared_vals[2].u.i;
          }
          else
          {
            kp->x = shared_vals[2].u.i;
            kp->y = ( token == AFM_TOKEN_KP && r == 4 )
                      ? shared_vals[3].u.i : 0;
          }
        }
        break;
 
      case AFM_TOKEN_ENDKERNPAIRS:
      case AFM_TOKEN_ENDKERNDATA:
      case AFM_TOKEN_ENDFONTMETRICS:
        fi->NumKernPair = (FT_UInt)( n + 1 );
        ft_qsort( fi->KernPairs, fi->NumKernPair,
                  sizeof ( AFM_KernPairRec ),
                  afm_compare_kern_pairs );
        return FT_Err_Ok;
 
      case AFM_TOKEN_UNKNOWN:
        break;
 
      default:
        goto Fail;
      }
    }
 
  Fail:
    return FT_THROW( Syntax_Error );
  }

Referenced by afm_parse_kern_data().

afm_parse_track_kern()

static FT_Error afm_parse_track_kern ( AFM_Parser  parser )

static

Definition at line 588 of file afmparse.c.

  {
    AFM_FontInfo   fi = parser->FontInfo;
    AFM_TrackKern  tk;
    char*          key;
    FT_Offset      len;
    int            n = -1;
    FT_Int         tmp;
 
 
    if ( afm_parser_read_int( parser, &tmp ) )
        goto Fail;
 
    if ( tmp < 0 )
      goto Fail;
 
    fi->NumTrackKern = (FT_UInt)tmp;
 
    if ( fi->NumTrackKern )
    {
      FT_Memory  memory = parser->memory;
      FT_Error   error;
 
 
      if ( FT_QNEW_ARRAY( fi->TrackKerns, fi->NumTrackKern ) )
        return error;
    }
 
    while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 )
    {
      AFM_ValueRec  shared_vals[5];
 
 
      switch ( afm_tokenize( key, len ) )
      {
      case AFM_TOKEN_TRACKKERN:
        n++;
 
        if ( n >= (int)fi->NumTrackKern )
          goto Fail;
 
        tk = fi->TrackKerns + n;
 
        shared_vals[0].type = AFM_VALUE_TYPE_INTEGER;
        shared_vals[1].type = AFM_VALUE_TYPE_FIXED;
        shared_vals[2].type = AFM_VALUE_TYPE_FIXED;
        shared_vals[3].type = AFM_VALUE_TYPE_FIXED;
        shared_vals[4].type = AFM_VALUE_TYPE_FIXED;
        if ( afm_parser_read_vals( parser, shared_vals, 5 ) != 5 )
          goto Fail;
 
        tk->degree     = shared_vals[0].u.i;
        tk->min_ptsize = shared_vals[1].u.f;
        tk->min_kern   = shared_vals[2].u.f;
        tk->max_ptsize = shared_vals[3].u.f;
        tk->max_kern   = shared_vals[4].u.f;
 
        break;
 
      case AFM_TOKEN_ENDTRACKKERN:
      case AFM_TOKEN_ENDKERNDATA:
      case AFM_TOKEN_ENDFONTMETRICS:
        fi->NumTrackKern = (FT_UInt)( n + 1 );
        return FT_Err_Ok;
 
      case AFM_TOKEN_UNKNOWN:
        break;
 
      default:
        goto Fail;
      }
    }
 
  Fail:
    return FT_THROW( Syntax_Error );
  }

Referenced by afm_parse_kern_data().

afm_parser_done()

afm_parser_done

(

AFM_Parser

parser

)

Definition at line 558 of file afmparse.c.

  {
    FT_Memory  memory = parser->memory;
 
 
    FT_FREE( parser->stream );
  }

afm_parser_init()

afm_parser_init	(	AFM_Parser	parser,
		FT_Memory	memory,
		FT_Byte *	base,
		FT_Byte *	limit
	)

Definition at line 530 of file afmparse.c.

  {
    AFM_Stream  stream = NULL;
    FT_Error    error;
 
 
    if ( FT_NEW( stream ) )
      return error;
 
    stream->cursor = stream->base = base;
    stream->limit  = limit;
 
    /* don't skip the first line during the first call */
    stream->status = AFM_STREAM_STATUS_EOL;
 
    parser->memory    = memory;
    parser->stream    = stream;
    parser->FontInfo  = NULL;
    parser->get_index = NULL;
 
    return FT_Err_Ok;
  }

afm_parser_next_key()

afm_parser_next_key	(	AFM_Parser	parser,
		FT_Bool	line,
		FT_Offset *	len
	)

Definition at line 446 of file afmparse.c.

  {
    AFM_Stream  stream = parser->stream;
    char*       key    = NULL;  /* make stupid compiler happy */
 
 
    if ( line )
    {
      while ( 1 )
      {
        /* skip current line */
        if ( !AFM_STATUS_EOL( stream ) )
          afm_stream_read_string( stream );
 
        stream->status = AFM_STREAM_STATUS_NORMAL;
        key = afm_stream_read_one( stream );
 
        /* skip empty line */
        if ( !key                      &&
             !AFM_STATUS_EOF( stream ) &&
             AFM_STATUS_EOL( stream )  )
          continue;
 
        break;
      }
    }
    else
    {
      while ( 1 )
      {
        /* skip current column */
        while ( !AFM_STATUS_EOC( stream ) )
          afm_stream_read_one( stream );
 
        stream->status = AFM_STREAM_STATUS_NORMAL;
        key = afm_stream_read_one( stream );
 
        /* skip empty column */
        if ( !key                      &&
             !AFM_STATUS_EOF( stream ) &&
             AFM_STATUS_EOC( stream )  )
          continue;
 
        break;
      }
    }
 
    if ( len )
      *len = ( key ) ? (FT_Offset)AFM_STREAM_KEY_LEN( stream, key )
                     : 0;
 
    return key;
  }

Referenced by afm_parse_kern_data(), afm_parse_kern_pairs(), afm_parse_track_kern(), afm_parser_parse(), and afm_parser_skip_section().

afm_parser_parse()

afm_parser_parse

(

AFM_Parser

parser

)

Definition at line 862 of file afmparse.c.

  {
    FT_Memory     memory = parser->memory;
    AFM_FontInfo  fi     = parser->FontInfo;
    FT_Error      error  = FT_ERR( Syntax_Error );
    char*         key;
    FT_Offset     len;
    FT_Int        metrics_sets = 0;
 
 
    if ( !fi )
      return FT_THROW( Invalid_Argument );
 
    key = afm_parser_next_key( parser, 1, &len );
    if ( !key || len != 16                              ||
         ft_strncmp( key, "StartFontMetrics", 16 ) != 0 )
      return FT_THROW( Unknown_File_Format );
 
    while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 )
    {
      AFM_ValueRec  shared_vals[4];
 
 
      switch ( afm_tokenize( key, len ) )
      {
      case AFM_TOKEN_METRICSSETS:
        if ( afm_parser_read_int( parser, &metrics_sets ) )
          goto Fail;
 
        if ( metrics_sets != 0 && metrics_sets != 2 )
        {
          error = FT_THROW( Unimplemented_Feature );
 
          goto Fail;
        }
        break;
 
      case AFM_TOKEN_ISCIDFONT:
        shared_vals[0].type = AFM_VALUE_TYPE_BOOL;
        if ( afm_parser_read_vals( parser, shared_vals, 1 ) != 1 )
          goto Fail;
 
        fi->IsCIDFont = shared_vals[0].u.b;
        break;
 
      case AFM_TOKEN_FONTBBOX:
        shared_vals[0].type = AFM_VALUE_TYPE_FIXED;
        shared_vals[1].type = AFM_VALUE_TYPE_FIXED;
        shared_vals[2].type = AFM_VALUE_TYPE_FIXED;
        shared_vals[3].type = AFM_VALUE_TYPE_FIXED;
        if ( afm_parser_read_vals( parser, shared_vals, 4 ) != 4 )
          goto Fail;
 
        fi->FontBBox.xMin = shared_vals[0].u.f;
        fi->FontBBox.yMin = shared_vals[1].u.f;
        fi->FontBBox.xMax = shared_vals[2].u.f;
        fi->FontBBox.yMax = shared_vals[3].u.f;
        break;
 
      case AFM_TOKEN_ASCENDER:
        shared_vals[0].type = AFM_VALUE_TYPE_FIXED;
        if ( afm_parser_read_vals( parser, shared_vals, 1 ) != 1 )
          goto Fail;
 
        fi->Ascender = shared_vals[0].u.f;
        break;
 
      case AFM_TOKEN_DESCENDER:
        shared_vals[0].type = AFM_VALUE_TYPE_FIXED;
        if ( afm_parser_read_vals( parser, shared_vals, 1 ) != 1 )
          goto Fail;
 
        fi->Descender = shared_vals[0].u.f;
        break;
 
      case AFM_TOKEN_STARTCHARMETRICS:
        {
          FT_Int  n = 0;
 
 
          if ( afm_parser_read_int( parser, &n ) )
            goto Fail;
 
          error = afm_parser_skip_section( parser, n,
                                           AFM_TOKEN_ENDCHARMETRICS );
          if ( error )
            return error;
        }
        break;
 
      case AFM_TOKEN_STARTKERNDATA:
        error = afm_parse_kern_data( parser );
        if ( error )
          goto Fail;
        /* fall through since we only support kern data */
 
      case AFM_TOKEN_ENDFONTMETRICS:
        return FT_Err_Ok;
 
      default:
        break;
      }
    }
 
  Fail:
    FT_FREE( fi->TrackKerns );
    fi->NumTrackKern = 0;
 
    FT_FREE( fi->KernPairs );
    fi->NumKernPair = 0;
 
    fi->IsCIDFont = 0;
 
    return error;
  }

afm_parser_read_int()

static FT_Error afm_parser_read_int ( AFM_Parser  parser, FT_Int *  aint  )

static

Definition at line 568 of file afmparse.c.

  {
    AFM_ValueRec  val;
 
 
    val.type = AFM_VALUE_TYPE_INTEGER;
 
    if ( afm_parser_read_vals( parser, &val, 1 ) == 1 )
    {
      *aint = val.u.i;
 
      return FT_Err_Ok;
    }
    else
      return FT_THROW( Syntax_Error );
  }

Referenced by afm_parse_kern_pairs(), afm_parse_track_kern(), and afm_parser_parse().

afm_parser_read_vals()

afm_parser_read_vals	(	AFM_Parser	parser,
		AFM_Value	vals,
		FT_Int	n
	)

Definition at line 372 of file afmparse.c.

  {
    AFM_Stream  stream = parser->stream;
    char*       str;
    FT_Int      i;
 
 
    if ( n > AFM_MAX_ARGUMENTS )
      return 0;
 
    for ( i = 0; i < n; i++ )
    {
      FT_Offset  len;
      AFM_Value  val = vals + i;
 
 
      if ( val->type == AFM_VALUE_TYPE_STRING )
        str = afm_stream_read_string( stream );
      else
        str = afm_stream_read_one( stream );
 
      if ( !str )
        break;
 
      len = AFM_STREAM_KEY_LEN( stream, str );
 
      switch ( val->type )
      {
      case AFM_VALUE_TYPE_STRING:
      case AFM_VALUE_TYPE_NAME:
        {
          FT_Memory  memory = parser->memory;
          FT_Error   error;
 
 
          if ( !FT_QALLOC( val->u.s, len + 1 ) )
          {
            ft_memcpy( val->u.s, str, len );
            val->u.s[len] = '\0';
          }
        }
        break;
 
      case AFM_VALUE_TYPE_FIXED:
        val->u.f = PS_Conv_ToFixed( (FT_Byte**)(void*)&str,
                                    (FT_Byte*)str + len, 0 );
        break;
 
      case AFM_VALUE_TYPE_INTEGER:
        val->u.i = PS_Conv_ToInt( (FT_Byte**)(void*)&str,
                                  (FT_Byte*)str + len );
        break;
 
      case AFM_VALUE_TYPE_BOOL:
        val->u.b = FT_BOOL( len == 4                      &&
                            !ft_strncmp( str, "true", 4 ) );
        break;
 
      case AFM_VALUE_TYPE_INDEX:
        if ( parser->get_index )
          val->u.i = parser->get_index( str, len, parser->user_data );
        else
          val->u.i = 0;
        break;
      }
    }
 
    return i;
  }

Referenced by afm_parse_kern_pairs(), afm_parse_track_kern(), afm_parser_parse(), and afm_parser_read_int().

afm_parser_skip_section()

static FT_Error afm_parser_skip_section ( AFM_Parser  parser, FT_Int  n, AFM_Token  end_section  )

static

Definition at line 832 of file afmparse.c.

  {
    char*      key;
    FT_Offset  len;
 
 
    while ( n-- > 0 )
    {
      key = afm_parser_next_key( parser, 1, NULL );
      if ( !key )
        goto Fail;
    }
 
    while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 )
    {
      AFM_Token  token = afm_tokenize( key, len );
 
 
      if ( token == end_section || token == AFM_TOKEN_ENDFONTMETRICS )
        return FT_Err_Ok;
    }
 
  Fail:
    return FT_THROW( Syntax_Error );
  }

Referenced by afm_parser_parse().

afm_stream_read_one()

static char * afm_stream_read_one ( AFM_Stream  stream )

static

Definition at line 122 of file afmparse.c.

  {
    char*  str;
 
 
    afm_stream_skip_spaces( stream );
    if ( AFM_STATUS_EOC( stream ) )
      return NULL;
 
    str = AFM_STREAM_KEY_BEGIN( stream );
 
    while ( 1 )
    {
      int  ch = AFM_GETC();
 
 
      if ( AFM_IS_SPACE( ch ) )
        break;
      else if ( AFM_IS_NEWLINE( ch ) )
      {
        stream->status = AFM_STREAM_STATUS_EOL;
        break;
      }
      else if ( AFM_IS_SEP( ch ) )
      {
        stream->status = AFM_STREAM_STATUS_EOC;
        break;
      }
      else if ( AFM_IS_EOF( ch ) )
      {
        stream->status = AFM_STREAM_STATUS_EOF;
        break;
      }
    }
 
    return str;
  }

Referenced by afm_parser_next_key(), and afm_parser_read_vals().

afm_stream_read_string()

static char * afm_stream_read_string ( AFM_Stream  stream )

static

Definition at line 163 of file afmparse.c.

  {
    char*  str;
 
 
    afm_stream_skip_spaces( stream );
    if ( AFM_STATUS_EOL( stream ) )
      return NULL;
 
    str = AFM_STREAM_KEY_BEGIN( stream );
 
    /* scan to eol */
    while ( 1 )
    {
      int  ch = AFM_GETC();
 
 
      if ( AFM_IS_NEWLINE( ch ) )
      {
        stream->status = AFM_STREAM_STATUS_EOL;
        break;
      }
      else if ( AFM_IS_EOF( ch ) )
      {
        stream->status = AFM_STREAM_STATUS_EOF;
        break;
      }
    }
 
    return str;
  }

Referenced by afm_parser_next_key(), and afm_parser_read_vals().

afm_stream_skip_spaces()

static int afm_stream_skip_spaces ( AFM_Stream  stream )

static

Definition at line 94 of file afmparse.c.

  {
    int  ch = 0;  /* make stupid compiler happy */
 
 
    if ( AFM_STATUS_EOC( stream ) )
      return ';';
 
    while ( 1 )
    {
      ch = AFM_GETC();
      if ( !AFM_IS_SPACE( ch ) )
        break;
    }
 
    if ( AFM_IS_NEWLINE( ch ) )
      stream->status = AFM_STREAM_STATUS_EOL;
    else if ( AFM_IS_SEP( ch ) )
      stream->status = AFM_STREAM_STATUS_EOC;
    else if ( AFM_IS_EOF( ch ) )
      stream->status = AFM_STREAM_STATUS_EOF;
 
    return ch;
  }

Referenced by afm_stream_read_one(), and afm_stream_read_string().

afm_tokenize()

static AFM_Token afm_tokenize ( const char *  key, FT_Offset  len  )

static

Definition at line 504 of file afmparse.c.

  {
    int  n;
 
 
    for ( n = 0; n < N_AFM_TOKENS; n++ )
    {
      if ( *( afm_key_table[n] ) == *key )
      {
        for ( ; n < N_AFM_TOKENS; n++ )
        {
          if ( *( afm_key_table[n] ) != *key )
            return AFM_TOKEN_UNKNOWN;
 
          if ( ft_strncmp( afm_key_table[n], key, len ) == 0 )
            return (AFM_Token) n;
        }
      }
    }
 
    return AFM_TOKEN_UNKNOWN;
  }

Referenced by afm_parse_kern_data(), afm_parse_kern_pairs(), afm_parse_track_kern(), afm_parser_parse(), and afm_parser_skip_section().

Variable Documentation

afm_key_table

const char* const afm_key_table[N_AFM_TOKENS]

static

Definition at line 285 of file afmparse.c.

Referenced by afm_tokenize().