windows-nt/Source/XPSP1/NT/shell/osshell/fontfldr/fontext/t1instal/mreader.c

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2020-09-26 03:20:57 -05:00
/***
**
** Module: MReader
**
** Description:
** This is a module of the T1 to TT font converter. The module
** will extract information from a T1 font metrics file, by parsing
** the data/commands found in PFM and AFM files.
**
** Author: Michael Jansson
**
** Created: 5/26/93
**
***/
/**** INCLUDES */
/* General types and definitions. */
#include <string.h>
/* Special types and definitions. */
#include "titott.h"
#include "types.h"
/* Module dependent types and prototypes. */
#include "pfm.h"
/***** CONSTANTS */
/*-none-*/
/***** LOCAL TYPES */
enum MType {t1_afm, t1_pfm, t1_unknown};
/***** MACROS */
/*-none-*/
/***** STATIC FUNCTIONS */
/***
** Function: MetricsType
**
** Description:
** This function determines the type of the
** metrics file that is associated to the
** main Adobe Type 1 outline file.
***/
static enum MType MetricsType(const char *metrics)
{
enum MType type;
if (metrics==NULL || strlen(metrics)<5)
type = t1_unknown;
else if (!_strnicmp(&metrics[strlen(metrics)-3], "AFM", 3))
type = t1_afm;
else if (!_strnicmp(&metrics[strlen(metrics)-3], "PFM", 3))
type = t1_pfm;
else
type = t1_unknown;
return type;
}
/***** FUNCTIONS */
/***
** Function: ReadFontMetrics
**
** Description:
** Read a font metrics file that associated to a type 1 font.
***/
errcode ReadFontMetrics(const char *metrics, struct T1Metrics *t1m)
{
errcode status = SUCCESS;
switch(MetricsType(metrics)) {
case t1_pfm:
status = ReadPFMMetrics(metrics, t1m);
break;
case t1_afm:
/* status = ReadAFMMetrics(metrics, t1m); */
break;
case t1_unknown:
default:
status = BADMETRICS;
break;
}
return status;
}