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/*
# epstopdf: written by Kong Hoon Lee konghoon@hyowon.cc.pusan.ac.kr<4/1/1999>
#
# It converts an EPS file to an encapsulated PDF File and
# coded with the perl script 'epstopdf' by Sebastian Rahtz on
# http://tug.org/applications/pdftex/epstopdf .
# It works like as the perl script without 'perl' for Windows 95
# but requires 'Ghostscript' for Windows.
#
*/

#include <stdio.h>
#include <stdlib.h>
#define MAX_IN 10000

#ifndef GS_LIB
#  define GS_LIB "GS_LIB"
#endif

main(int argc,char *argv[])
{
	FILE *in,*out,*inn;
	char tmpname_tmp[FILENAME_MAX];
	char tmpname[FILENAME_MAX];
	char filename[FILENAME_MAX];
	char command[MAX_IN];
	char ch[MAX_IN];
	char ch1[MAX_IN];
	int bbox[4],width,height,xoffset,yoffset;
	int i=0,j,count=0;
        const char *gs_lib = getenv(GS_LIB);
        if(gs_lib == NULL) gs_lib="c:\\gstools\\gs5.50;c:\\gstools\\gs5.50\\fonts";

	if(argc < 2 || argc >2) {
		printf("%s:\n",argv[0]);
		printf("written by Kong Hoon Lee, konghoon@hyowon.cc.pusan.ac.kr <4/1/1999>\n\n");
                printf("It converts an EPS file to an encapsulated PDF File and is written\n");
                printf("based on the perl script 'epstopdf' by Sebastian Rahtz on\n");
                printf("http://tug.org/applications/pdftex/epstopdf .\n");
                printf("It works like as the perl script without 'perl' for Windows 95\n");
                printf("but requires 'Ghostscript' for Windows.\n\n");

                printf("This program invokes 'GSWIN32C.EXE' and the path including 'GSWIN32C.EXE'\n");
	        printf("should be included to the environment variable 'PATH'. In addition\n");
	        printf("the variable 'GS_LIB' should be set before using this program,\n");
	        printf("otherwise 'GS_LIB=c:\\gstools\\gs5.50;c:\\gstools\\gs5.50\\fonts' is used.\n\n");

		printf("Usage: %s filename-of-an-eps-file\n\n",argv[0]);
		return;
	}

	if((in=fopen(argv[1],"r")) == NULL) {
		printf("%s: File not found!\n",argv[1]);
		printf("Usage: %s filename-of-an-eps-file\n\n",argv[0]);
		return;
	}
	fclose(in);
	
	strcpy(tmpname,argv[1]);
	strget(tmpname);
	strcat(tmpname,"_epstopdf.0");
	count=0;
	while ((out=fopen(tmpname,"r")) != NULL ) {
		    fclose(out);
		    count++;
	            strget(tmpname);
	            strcpy(tmpname_tmp,tmpname);
		    sprintf(tmpname,"%s.%d",tmpname_tmp,count);
    }

	strcpy(filename,argv[1]);
	strget(filename);
	strcat(filename,".pdf");
	
	printf("Converting %s to %s ..... ",argv[1],filename);

	in=fopen(argv[1],"r");
	out=fopen(tmpname,"w");
	while ((fgets(ch,MAX_IN,in)) !=NULL){
		strcpy(ch1,ch+2);
		*(ch1+11)='\0';
		if (strcmp(ch1,"BoundingBox") == 0 ) {
			strcpy(command,ch+15);
			read_number(command,4,bbox);
        	width=bbox[2]-bbox[0];
        	height=bbox[3]-bbox[1];
        	xoffset=0-bbox[0];
        	yoffset=0-bbox[1];
        	fprintf(out,"\%\%BoundingBox: %d %d %d %d\n",0,0,width,height);
			fprintf(out,"<< /PageSize [%d %d] >> setpagedevice \n",width,height);
			fprintf(out,"gsave %d %d translate\n",xoffset,yoffset);
		} else
			fputs(ch,out);
	}
	fclose(in);
	fclose(out);

	sprintf(command,"gswin32c -I%s -q -dNOPAUSE -dBATCH -dUseFlateCompression=true -sDEVICE=pdfwrite -sOutputFile=%s -c save pop -f %s",
			gs_lib,filename,tmpname);

	/*
	puts(command);
	*/
        system(command);
	remove(tmpname);
	printf("Done\n");
}

strget(char *string)
{
	int i=0;
	int size;
	
	size=strlen(string);
	for (i=0;i<size;i++) {
		if ( *(string+i) == '.' ) {
            *(string+i)='\0';
			break;
		}
	}
}

read_number(char *number,int num,int *value)
{
   char ch;
   char e_num[MAX_IN];
   int count = 0;
   int j;
   int counter[num];
   int counters[num];

   for (j=0;j<num;j++){
      while ((ch=number[count++]) !='\0' && isspace(ch)) { }
      counters[j]=count-1;
      while ((ch=number[count++]) !='\0' && !isspace(ch)) { }
      counter[j]=count;
   }
   for (j=0;j<num;j++) {
      strcpy(e_num,number+counters[j]);
      *(e_num+counter[j]-counters[j]-1)='\0';
      /* printf("%s,",e_num); */
      *(value+j)=atoi(e_num);
   }
}