scanfont.c

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      arrayP->data.valueP = (char *) objP;
      arrayP->len = 256;

      for (i=0; i<256; i++, objP++)
      {
	  scan_token(inputP);
	  
	  if (tokenType != TOKEN_LITERAL_NAME)
	      return(SCAN_ERROR);

	  if (!(vm_alloc(tokenLength)) ) return(SCAN_OUT_OF_MEMORY);
	  objFormatName(objP,tokenLength,tokenStartP);
      }

      scan_token(inputP);
      if ( (tokenType == TOKEN_RIGHT_BRACE) ||
	  (tokenType == TOKEN_RIGHT_BRACKET) )
	  return(SCAN_OK);
  }
  else
  {
      /* Must be sequences of ``dup <index> <charactername> put" */

      psobj *objP;
      int i;

      objP = (psobj *)vm_alloc(256*(sizeof(psobj)));
      if (!(objP)) return(SCAN_OUT_OF_MEMORY);

      arrayP->data.valueP = (char *) objP;
      arrayP->len = 256;

      for (i=0; i<256; i++)
	  objFormatName(objP + i, 7, ".notdef");

      while (TRUE)
      {
	  scan_token(inputP);

	  switch (tokenType)
	  {
	  case TOKEN_NAME:
	      if (tokenLength == 3)
	      {
		  if (strncmp(tokenStartP,"dup",3) == 0)
		  {
		      /* get <index> */
		      scan_token(inputP);
		      if (tokenType != TOKEN_INTEGER ||
			  tokenValue.integer < 0 ||
			  tokenValue.integer > 255)
			  return (SCAN_ERROR);
		      i = tokenValue.integer;

		      /* get <characer_name> */
		      scan_token(inputP);
		      if (tokenType != TOKEN_LITERAL_NAME)
			  return(SCAN_ERROR);

		      if (!(vm_alloc(tokenLength)) )
			  return(SCAN_OUT_OF_MEMORY);
		      objFormatName(objP + i,tokenLength,tokenStartP);

		      /* get "put" */
		      scan_token(inputP);
		      if (tokenType != TOKEN_NAME)
			  return(SCAN_ERROR);
		  }
		  else if (strncmp(tokenStartP,"def",3) == 0)
		      return (SCAN_OK);
	      }
	      break;
	  case TOKEN_EOF:
	  case TOKEN_NONE:
	  case TOKEN_INVALID:
	      return (SCAN_ERROR);
	  }
      }
  }

  return (SCAN_ERROR);
}
/***================================================================***/
static int getArray(arrayP)
    psobj *arrayP;
{
  int N;   /* count the items in the array */
  psobj *objP;

  /* That is totally a kludge. If some stupid font file has
   *	/foo/foo	# ftp://ftp.cdrom.com/pub/os2/fonts/future.zip
   * we will treat it as /foo.
   *  H.J. */
  char tmp [1024];

  strncpy (tmp, tokenStartP, sizeof (tmp));
  tmp [sizeof (tmp) - 1] = '\0';

restart: 
  scan_token(inputP);
  switch (tokenType)
  {
  case TOKEN_LEFT_BRACE:
  case TOKEN_LEFT_BRACKET:
    break;

  case TOKEN_LITERAL_NAME:
    tokenStartP[tokenLength] = '\0';
    if (strcmp (tokenStartP, tmp) == 0)
    {
      /* Ok, We see /foo/foo. Let's restart. */
      goto restart;
    }

  default:
    return(SCAN_ERROR);
  }
  /* format the array in memory, save pointer to the beginning */
  arrayP->data.valueP = tokenStartP;
  /* loop, picking up next object, until right BRACE or BRACKET */
  N = 0;
  do {
    scan_token(inputP);
    if ( (tokenType == TOKEN_RIGHT_BRACE) ||
         (tokenType == TOKEN_RIGHT_BRACKET) ) {
      /* save then number of items in the array */
      arrayP->len = N;
      return(SCAN_OK);
    }
     /* allocate the space for the object */
    objP = (psobj *)vm_alloc(sizeof(psobj));
    if (!(objP)) return(SCAN_OUT_OF_MEMORY);
 
    /* array is an array of numbers, (real or integer)  */
    if (tokenType == TOKEN_REAL) {
      objFormatReal(objP, tokenValue.real);
    }
    else
      if (tokenType == TOKEN_INTEGER) {
        objFormatInteger(objP, tokenValue.integer);
      }
      else return(SCAN_ERROR);
    N++;
  }  while ( 1>0 );
  /* NOTREACHED*/
}
/***================================================================***/
static int getName(nameP)
    char *nameP;
{
  do {
    scan_token(inputP);
    if (tokenType <= TOKEN_NONE) {
      if (tokenTooLong) return(SCAN_OUT_OF_MEMORY);
      return(SCAN_ERROR);
    }
  } while ((tokenType != TOKEN_NAME) ||
    (0 != strncmp(tokenStartP,nameP,strlen(nameP))) );
  /* found */
  return(SCAN_OK);
}
/***================================================================***/
static int getNbytes(N)
    int N;
{
  int I;
 
 
  tokenStartP = vm_next_byte();
  tokenMaxP = tokenStartP + MIN(vm_free_bytes(), MAX_STRING_LEN);
  if (N > vm_free_bytes()) {
    return(SCAN_OUT_OF_MEMORY);
  }
  I = fread(tokenStartP,1,N,inputP->data.fileP);
  if ( I != N )     return(SCAN_FILE_EOF);
  return(SCAN_OK);
}
 
/***================================================================***/
/*  getLiteralName(nameObjP)                                          */
/*     scan for next literal.                                         */
/*  if we encounter the name 'end' then terminate and say ok.         */
/*    It means that the CharStrings does not have as many characters  */
/*    as the dictionary said it would and that is ok.                 */
/***================================================================***/
static int getLiteralName(nameObjP)
    psobj *nameObjP;
{
  do {
    scan_token(inputP);
    if (tokenType <= TOKEN_NONE) {
      if (tokenTooLong) return(SCAN_OUT_OF_MEMORY);
      return(SCAN_ERROR);
    }
    if (tokenType == TOKEN_NAME) {
      if (0 == strncmp(tokenStartP,"end",3) ) {
        return(SCAN_END);
      }
    }
  } while  (tokenType != TOKEN_LITERAL_NAME) ;
  nameObjP->len = tokenLength;
  /* allocate all the names in the CharStrings Structure */
  if (!(vm_alloc(tokenLength)) ) return(SCAN_OUT_OF_MEMORY);
  nameObjP->data.valueP =  tokenStartP;
  /* found */
  return(SCAN_OK);
}
 
/***================================================================***/
/*
 *   BuildSubrs routine
 */
/***================================================================***/
 
static int BuildSubrs(FontP)
    psfont *FontP;
{
   int N;   /* number of values in Subrs */
   int I;   /* index into Subrs */
   int i;   /* loop thru  Subrs */
   int J;   /* length of Subrs entry */
   psobj *arrayP;
 
   /* next token should be a positive int */
   /* note: rc is set by getInt. */
   N = getInt();
   if (rc) return(rc);
   if (N < 0 ) return(SCAN_ERROR);
   /* if we already have a Subrs, then skip the second one */
   /* The second one is for hiresolution devices.          */
   if (FontP->Subrs.data.arrayP != NULL) {
     TwoSubrs = TRUE;
     /* process all the Subrs, but do not update anything */
     /* can not just skip them because of the binary data */
     for (i=0;i<N;i++) {
       /* look for dup */
       rc = getName("dup");
       if (rc) return(rc);
       /* get 2 integers */
       I = getInt();
       if (rc) return(rc);
       J = getInt();
       if (rc) return(rc);
       if ( (I < 0) || (J < 0 ) ) return (SCAN_ERROR);
       /* get the next token, it should be RD or -|, either is ok */
       rc = getNextValue(TOKEN_NAME);
       if ( rc != SCAN_OK ) return(rc);
       rc = getNbytes(J);
       if (rc) return(rc);
     }
     return(SCAN_OK);
   }
 
   arrayP = (psobj *)vm_alloc(N*sizeof(psobj));
   if (!(arrayP) ) return(SCAN_OUT_OF_MEMORY);
   FontP->Subrs.len = N;
   FontP->Subrs.data.arrayP =  arrayP;
   /* get N values for Subrs */
   for (i=0;i<N;i++) {
     /* look for dup */
     rc = getName("dup");
     if (rc) return(rc);
     /* get 2 integers */
     I = getInt();
     if (rc) return(rc);
     J = getInt();
     if (rc) return(rc);
     if ( (I < 0) || (J < 0 ) ) return (SCAN_ERROR);
     arrayP[I].len = J;
     /* get the next token, it should be RD or -|, either is ok */
     rc = getNextValue(TOKEN_NAME);
     if ( rc != SCAN_OK ) return(rc);
     rc = getNbytes(J);
     if (rc == SCAN_OK) {
       arrayP[I].data.valueP = tokenStartP;
       if ( !(vm_alloc(J)) ) return(SCAN_OUT_OF_MEMORY);
     }
     else return(rc);
   }
   return(SCAN_OK);
 
}
/***================================================================***/
/***================================================================***/
/*
 *   BuildCharStrings routine
 */
/***================================================================***/
 
static int BuildCharStrings(FontP)
    psfont   *FontP;
{
   int N;   /* number of values in CharStrings */
   int i;   /* loop thru  Subrs */
   int J;   /* length of Subrs entry */
   psdict  *dictP;
 
   /* next token should be a positive int */
   N = getInt();
   if (rc) {
     /* check if file had TwoSubrs, hi resolution stuff is in file*/
     if (TwoSubrs) {
       do {
         scan_token(inputP);
         if (tokenType <= TOKEN_NONE) {
           if (tokenTooLong) return(SCAN_OUT_OF_MEMORY);
           return(SCAN_ERROR);
         }
       } while (tokenType != TOKEN_INTEGER);
       N = tokenValue.integer;
     }
     else return(rc);  /* if next token was not an Int */
   }
   if (N<=0) return(SCAN_ERROR);
   /* save number of entries in the dictionary */
 
   dictP = (psdict *)vm_alloc((N+1)*sizeof(psdict));
   if (!(dictP)) return(SCAN_OUT_OF_MEMORY);
   FontP->CharStringsP = dictP;
   dictP[0].key.len = N;
   /* get N values for CharStrings */
   for (i=1;i<=N;i++) {
     /* look for next literal name  */
     rc = getLiteralName(&(dictP[i].key));
     if (rc) return(rc);
     /* get 1 integer */
     J = getInt();
     if (rc) return(rc);  /* if next token was not an Int */
     if (J<0) return (SCAN_ERROR);
     dictP[i].value.len = J;
     /* get the next token, it should be RD or -|, either is ok */
     rc = getNextValue(TOKEN_NAME);
     if ( rc != SCAN_OK ) return(rc);
     rc = getNbytes(J);
     if (rc == SCAN_OK) {
       dictP[i].value.data.valueP = tokenStartP;
       if ( !(vm_alloc(J)) ) return(SCAN_OUT_OF_MEMORY);
     }
     else return(rc);
   }
   return(SCAN_OK);
 
}
/***================================================================***/
/***================================================================***/
/*
 *   BuildFontInfo Dictionary
 */
/***================================================================***/
static int BuildFontInfo(fontP)
    psfont *fontP;
{
  psdict *dictP;
 
  /* allocate the private dictionary */
  dictP = (psdict *)vm_alloc(20*sizeof(psdict));
  if (!(dictP)) return(SCAN_OUT_OF_MEMORY);
 
  fontP->fontInfoP = dictP;
  fontP->fontInfoP[0].key.len = 17;  /* number of actual entries */
  objFormatName(&(dictP[FONTNAME].key),8,"FontName");
  objFormatName(&(dictP[FONTNAME].value),0,NULL);
  objFormatName(&(dictP[PAINTTYPE].key),9,"PaintType");
  objFormatInteger(&(dictP[PAINTTYPE].value),0);
  objFormatName(&(dictP[FONTTYPENUM].key),8,"FontType");
  objFormatInteger(&(dictP[FONTTYPENUM].value),0);
  objFormatName(&(dictP[FONTMATRIX].key),10,"FontMatrix");
  objFormatArray(&(dictP[FONTMATRIX].value),0,NULL);
  objFormatName(&(dictP[FONTBBOX].key),8,"FontBBox");
  objFormatArray(&(dictP[FONTBBOX].value),0,NULL);
  objFormatName(&(dictP[ENCODING].key),8,"Encoding");
  objFormatEncoding(&(dictP[ENCODING].value),0,NULL);
  objFormatName(&(dictP[UNIQUEID].key),8,"UniqueID");
  objFormatInteger(&(dictP[UNIQUEID].value),0);
  objFormatName(&(dictP[STROKEWIDTH].key),11,"StrokeWidth");
  objFormatReal(&(dictP[STROKEWIDTH].value),0.0);
  objFormatName(&(dictP[VERSION].key),7,"version");
  objFormatString(&(dictP[VERSION].value),0,NULL);
  objFormatName(&(dictP[NOTICE].key),6,"Notice");
  objFormatString(&(dictP[NOTICE].value),0,NULL);
  objFormatName(&(dictP[FULLNAME].key),8,"FullName");
  objFormatString(&(dictP[FULLNAME].value),0,NULL);
  objFormatName(&(dictP[FAMILYNAME].key),10,"FamilyName");
  objFormatString(&(dictP[FAMILYNAME].value),0,NULL);
  objFormatName(&(dictP[WEIGHT].key),6,"Weight");
  objFormatString(&(dictP[WEIGHT].value),0,NULL);
  objFormatName(&(dictP[ITALICANGLE].key),11,"ItalicAngle");
  objFormatReal(&(dictP[ITALICANGLE].value),0.0);
  objFormatName(&(dictP[ISFIXEDPITCH].key),12,"isFixedPitch");
  objFormatBoolean(&(dictP[ISFIXEDPITCH].value),FALSE);
  objFormatName(&(dictP[UNDERLINEPOSITION].key),17,"UnderlinePosition");
  objFormatReal(&(dictP[UNDERLINEPOSITION].value),0.0);
  objFormatName(&(dictP[UNDERLINETHICKNESS].key),18,"UnderlineThickness");
  objFormatReal(&(dictP[UNDERLINETHICKNESS].value),0.0);
  return(SCAN_OK);
}
/***================================================================***/
/*
 *   BuildPrivate Dictionary
 */
/***================================================================***/
static int BuildPrivate(fontP)
    psfont *fontP;
{
  psdict *Private;
 
  /* allocate the private dictionary */
  Private = (psdict *)vm_alloc(20*sizeof(psdict));
 
  if (!(Private)) return(SCAN_OUT_OF_MEMORY);
 
  fontP->Private = Private;
  fontP->Private[0].key.len = 16;  /* number of actual entries */
 
  objFormatName(&(Private[BLUEVALUES].key),10,"BlueValues");
  objFormatArray(&(Private[BLUEVALUES].value),0,NULL);
  objFormatName(&(Private[OTHERBLUES].key),10,"OtherBlues");
  objFormatArray(&(Private[OTHERBLUES].value),0,NULL);
  objFormatName(&(Private[FAMILYBLUES].key),11,"FamilyBlues");
  objFormatArray(&(Private[FAMILYBLUES].value),0,NULL);
  objFormatName(&(Private[FAMILYOTHERBLUES].key),16,"FamilyOtherBlues");
  objFormatArray(&(Private[FAMILYOTHERBLUES].value),0,NULL);
  objFormatName(&(Private[BLUESCALE].key),9,"BlueScale");
  objFormatReal(&(Private[BLUESCALE].value),DEFAULTBLUESCALE);
  objFormatName(&(Private[BLUESHIFT].key),9,"BlueShift");
  objFormatInteger(&(Private[BLUESHIFT].value),DEFAULTBLUESHIFT);
  objFormatName(&(Private[BLUEFUZZ].key),8,"BlueFuzz");
  objFormatInteger(&(Private[BLUEFUZZ].value),DEFAULTBLUEFUZZ);
  objFormatName(&(Private[STDHW].key),5,"StdHW");
  objFormatArray(&(Private[STDHW].value),0,NULL);
  objFormatName(&(Private[STDVW].key),5,"StdVW");
  objFormatArray(&(Private[STDVW].value),0,NULL);
  objFormatName(&(Private[STEMSNAPH].key),9,"StemSnapH");
  objFormatArray(&(Private[STEMSNAPH].value),0,NULL);
  objFormatName(&(Private[STEMSNAPV].key),9,"StemSnapV");
  objFormatArray(&(Private[STEMSNAPV].value),0,NULL);
  objFormatName(&(Private[FORCEBOLD].key),9,"ForceBold");
  objFormatBoolean(&(Private[FORCEBOLD].value),DEFAULTFORCEBOLD);
  objFormatName(&(Private[LANGUAGEGROUP].key),13,"LanguageGroup");
  objFormatInteger(&(Private[LANGUAGEGROUP].value),DEFAULTLANGUAGEGROUP);
  objFormatName(&(Private[LENIV].key),5,"lenIV");
  objFormatInteger(&(Private[LENIV].value),DEFAULTLENIV);
  objFormatName(&(Private[RNDSTEMUP].key),9,"RndStemUp");
  objFormatBoolean(&(Private[RNDSTEMUP].value),DEFAULTRNDSTEMUP);
  objFormatName(&(Private[EXPANSIONFACTOR].key),9,"ExpansionFactor");
  objFormatReal(&(Private[EXPANSIONFACTOR].value),
                          DEFAULTEXPANSIONFACTOR);
  return(SCAN_OK);
}
/***================================================================***/
/**********************************************************************/
/*     GetType1Blues(fontP)                                           */
/*                                                                    */
/*   Routine to support font-level hints.                             */
/*                                                                    */
/*         Gets all the Blues information from the Private dictionary */
/*         for the font.                                              */
/*                                                                    */
/*                                                                    */
/**********************************************************************/
static int GetType1Blues(fontP)
    psfont *fontP;
{
  psdict *PrivateDictP;   /* the Private dict relating to hints */
  struct blues_struct *blues;  /* ptr for the blues struct we will allocate */
  int i;
  psobj *HintEntryP;
 
 
 
  /* get the Private dictionary pointer */
  PrivateDictP = fontP->Private;
 
  /* allocate the memory for the blues structure */
  blues = (struct blues_struct *) vm_alloc(sizeof(struct blues_struct));
 
  if (!blues)  return(SCAN_OUT_OF_MEMORY);
 
  /* Make fontP's blues ptr point to this newly allocated structure. */
  fontP->BluesP = blues;
 
  /* fill in the BlueValues array */
  HintEntryP = &(PrivateDictP[BLUEVALUES].value);
  /* check to see if the entry exists and if it's an array */
  if ( !objPIsArray(HintEntryP) || (HintEntryP->len == 0 ))
      blues->numBlueValues = 0;
  else {
      /* get the number of values in the array */
      if (HintEntryP->len > NUMBLUEVALUES) {
          blues->numBlueValues = NUMBLUEVALUES;
      } else
          blues->numBlueValues = HintEntryP->len;
      for (i = 0; i<= blues->numBlueValues-1; ++i) {
          if (objPIsInteger(&HintEntryP->data.arrayP[i]))
              blues->BlueValues[i] =
                  HintEntryP->data.arrayP[i].data.integer;
          else if (objPIsReal(&HintEntryP->data.arrayP[i]))
              blues->BlueValues[i] =
                  HintEntryP->data.arrayP[i].data.real;
          else
              blues->BlueValues[i] = 0;
      }
  }
 
  /* fill in the OtherBlues array */