dos33fsprogs/asoft_basic-utils/asoft_detoken.c

#include <stdio.h>
#include <string.h> /* strlen() */
#include "version.h"

   /* Starting at 0x80 */
char applesoft_tokens[][8]={
   
/* 80 */ "END","FOR","NEXT","DATA","INPUT","DEL","DIM","READ",
/* 88 */ "GR","TEXT","PR #","IN #","CALL","PLOT","HLIN","VLIN",
/* 90 */ "HGR2","HGR","HCOLOR=","HPLOT","DRAW","XDRAW","HTAB","HOME",
/* 98 */ "ROT=","SCALE=","SHLOAD","TRACE","NOTRACE","NORMAL","INVERSE","FLASH",
/* A0 */ "COLOR=","POP","VTAB ","HIMEM:","LOMEM:","ONERR","RESUME","RECALL",
/* A8 */ "STORE","SPEED=","LET","GOTO","RUN","IF","RESTORE","&",
/* B0 */ "GOSUB","RETURN","REM","STOP","ON","WAIT","LOAD","SAVE",
/* B8 */ "DEF FN","POKE","PRINT","CONT","LIST","CLEAR","GET","NEW",
/* C0 */ "TAB","TO","FN","SPC(","THEN","AT","NOT","STEP",
/* C8 */ "+","-","*","/","^","AND","OR",">",
/* D0 */ "=","<","SGN","INT","ABS","USR","FRE","SCRN (",
/* D8 */ "PDL","POS","SQR","RND","LOG","EXP","COS","SIN",
/* E0 */ "TAN","ATN","PEEK","LEN","STR$","VAL","ASC","CHR$",
/* E8 */ "LEFT$","RIGHT$","MID$","","","","","",
/* F0 */ "","","","","","","","",
/* F8 */ "","","","","","(","(","("
};

int main(int argc, char **argv) {
   
   int ch1,i;
   int size1,size2;
   int line1,line2;
   int link1,link2,link;
   int debug=0;
   int offset=0x801;
   
       /* read size, first two bytes */
   size1=fgetc(stdin);
   size2=fgetc(stdin);
   
   if (debug) fprintf(stderr,"File size: %x %x\n",size1,size2);

   while(!feof(stdin)) {
        
      /* link points to the next line */
      /* assumes asoft program starts at address $801 */
      link1=fgetc(stdin);
      link2=fgetc(stdin);
      link=(link2<<8)|link1;
      offset+=2;

      /* link==0 indicates EOF */
      if (link==0) goto the_end;
      
      /* line number is little endian 16-bit value */
      line1=fgetc(stdin);
      line2=fgetc(stdin);
      if (feof(stdin)) goto the_end;
      printf("%4d ",((line2)<<8)+line1);
      offset+=2;
      
      /* repeat until EOL character (0) */
      while( (ch1=fgetc(stdin))!=0 ) {
	  offset++;
	     /* if > 0x80 it's a token */
	  if (ch1>=0x80) {
	     fputc(' ',stdout);
	     for(i=0;i<strlen(applesoft_tokens[ch1-0x80]);i++) {
	        fputc(applesoft_tokens[ch1-0x80][i],stdout);
	     }
	     fputc(' ',stdout);
	  }
            /* otherwise it is an ascii char */
	  else {
	     fputc(ch1,stdout);
	  }
	 
      }
      offset++;
      printf("\n");
      if (link!=offset) fprintf(stderr,"WARNING! link!=offset %x %x\n",
				link,offset);
   }
   the_end:;
   return 0;
}