gxvmort0.c File Reference

#include "gxvmort.h"

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Macros
#define	FT_COMPONENT   trace_gxvmort

Functions
static void	gxv_mort_subtable_type0_entry_validate (FT_Byte state, FT_UShort flags, GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, FT_Bytes table, FT_Bytes limit, GXV_Validator gxvalid)
	gxv_mort_subtable_type0_validate (FT_Bytes table, FT_Bytes limit, GXV_Validator gxvalid)

Variables
static const char *	GXV_Mort_IndicScript_Msg []

Macro Definition Documentation

FT_COMPONENT

#define FT_COMPONENT   trace_gxvmort

Definition at line 39 of file gxvmort0.c.

Function Documentation

gxv_mort_subtable_type0_entry_validate()

static void gxv_mort_subtable_type0_entry_validate ( FT_Byte  state, FT_UShort  flags, GXV_StateTable_GlyphOffsetCPtr  glyphOffset_p, FT_Bytes  table, FT_Bytes  limit, GXV_Validator  gxvalid  )

static

Definition at line 65 of file gxvmort0.c.

  {
    FT_UShort  markFirst;
    FT_UShort  dontAdvance;
    FT_UShort  markLast;
    FT_UShort  reserved;
    FT_UShort  verb = 0;
 
    FT_UNUSED( state );
    FT_UNUSED( table );
    FT_UNUSED( limit );
 
    FT_UNUSED( GXV_Mort_IndicScript_Msg[verb] ); /* for the non-debugging */
    FT_UNUSED( glyphOffset_p );                  /* case                  */
 
 
    markFirst   = (FT_UShort)( ( flags >> 15 ) & 1 );
    dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 );
    markLast    = (FT_UShort)( ( flags >> 13 ) & 1 );
 
    reserved = (FT_UShort)( flags & 0x1FF0 );
    verb     = (FT_UShort)( flags & 0x000F );
 
    GXV_TRACE(( "  IndicScript MorphRule for glyphOffset 0x%04x",
                glyphOffset_p->u ));
    GXV_TRACE(( " markFirst=%01d", markFirst ));
    GXV_TRACE(( " dontAdvance=%01d", dontAdvance ));
    GXV_TRACE(( " markLast=%01d", markLast ));
    GXV_TRACE(( " %02d", verb ));
    GXV_TRACE(( " %s\n", GXV_Mort_IndicScript_Msg[verb] ));
 
    if ( markFirst > 0 && markLast > 0 )
    {
      GXV_TRACE(( "  [odd] a glyph is marked as the first and last"
                  "  in Indic rearrangement\n" ));
      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
    }
 
    if ( markFirst > 0 && dontAdvance > 0 )
    {
      GXV_TRACE(( "  [odd] the first glyph is marked as dontAdvance"
                  " in Indic rearrangement\n" ));
      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
    }
 
    if ( 0 < reserved )
    {
      GXV_TRACE(( " non-zero bits found in reserved range\n" ));
      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
    }
    else
      GXV_TRACE(( "\n" ));
  }

Referenced by gxv_mort_subtable_type0_validate().

gxv_mort_subtable_type0_validate()

gxv_mort_subtable_type0_validate	(	FT_Bytes	table,
		FT_Bytes	limit,
		GXV_Validator	gxvalid
	)

Definition at line 127 of file gxvmort0.c.

  {
    FT_Bytes  p = table;
 
 
    GXV_NAME_ENTER(
      "mort chain subtable type0 (Indic-Script Rearrangement)" );
 
    GXV_LIMIT_CHECK( GXV_STATETABLE_HEADER_SIZE );
 
    gxvalid->statetable.optdata               = NULL;
    gxvalid->statetable.optdata_load_func     = NULL;
    gxvalid->statetable.subtable_setup_func   = NULL;
    gxvalid->statetable.entry_glyphoffset_fmt = GXV_GLYPHOFFSET_NONE;
    gxvalid->statetable.entry_validate_func =
      gxv_mort_subtable_type0_entry_validate;
 
    gxv_StateTable_validate( p, limit, gxvalid );
 
    GXV_EXIT;
  }

Referenced by gxv_mort_subtables_validate().

Variable Documentation

GXV_Mort_IndicScript_Msg

const char* GXV_Mort_IndicScript_Msg[]

static

Initial value:

=
  {
    "no change",
    "Ax => xA",
    "xD => Dx",
    "AxD => DxA",
    "ABx => xAB",
    "ABx => xBA",
    "xCD => CDx",
    "xCD => DCx",
    "AxCD => CDxA",
    "AxCD => DCxA",
    "ABxD => DxAB",
    "ABxD => DxBA",
    "ABxCD => CDxAB",
    "ABxCD => CDxBA",
    "ABxCD => DCxAB",
    "ABxCD => DCxBA",
 
  }

Definition at line 42 of file gxvmort0.c.

Referenced by gxv_mort_subtable_type0_entry_validate().