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printcbm.c

/* printcbm -- A part of xa65 - 65xx/65816 cross-assembler and utility suite
 * list CBM BASIC programs
 *
 * Copyright (C) 1989-1997 André Fachat (a.fachat@physik.tu-chemnitz.de)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "version.h"

#define programname     "printcbm"
#define progversion     "v1.0.0"
#define author          "Written by André Fachat"
#define copyright "Copyright (C) 1997-2002 André Fachat."

char *cmd[] = {
      "end", "for", "next", "data", "input#", "input", "dim", "read",
      "let", "goto", "run", "if", "restore", "gosub", "return",
      "rem", "stop", "on", "wait", "load", "save", "verify", "def",
      "poke", "print#", "print", "cont", "list", "clr", "cmd", "sys",
      "open", "close", "get", "new", "tab(", "to", "fn", "spc(",
      "then", "not", "step", "+", "-", "*", "/", "^", "and", "or",
      ">", "=", "<", "sgn", "int", "abs", "usr", "fre", "pos", "sqr",
      "rnd", "log", "exp", "cos", "sin", "tan", "atn", "peek", "len",
      "str$", "val", "asc", "chr$", "left$", "right$", "mid$", "go"
};

void usage(FILE *fp)
{
      fprintf(fp,
            "Usage: %s [OPTION]... [FILE]...\n"
            "List CBM BASIC programs\n"
            "\n"
            "  --version  output version information and exit\n"
            "  --help     display this help and exit\n",
            programname);
}

int main(int argc, char *argv[])
{
      FILE *fp;
      int a, b, c;

      if (argc < 2) {
            usage(stderr);
            exit(1);
      }

      if (strstr(argv[1], "--help")) {
            usage(stdout);
            exit(0);
      }

      if (strstr(argv[1], "--version")) {
            version(programname, progversion, author, copyright);
            exit(0);
      }

      fp = fopen(argv[1], "rb");

      if (fp) {
            b = fgetc(fp);
            b = fgetc(fp);

            while (b != EOF) {
                  a = fgetc(fp);
                  a = a + 256 * fgetc(fp);

                  if (a) {
                        a = fgetc(fp);
                        a = a + 256 * fgetc(fp);
                        printf("%d ", a);

                        while ((c = fgetc(fp))) {
                              if (c == EOF)
                                    break;
                              if (c >= 0x80 && c < 0xcc)
                                    printf("%s", cmd[c - 0x80]);
                              else
                                    printf("%c", c);
                        }
                        printf("\n");
                  } else {
                        break;
                  }
            }
            fclose(fp);
      } else {
            printf("File %s not found!\n", argv[1]);
      }

      return 0;
}

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