Zobrazení zdroje stránky REC.CPP

  /*  File  rec.cpp
      by Dustin Caldwell   (dustin@gse.utah.edu)
  */
 
  #include <dos.h>
  #include <stdio.h>
  #include <ctype.h>
  #include <stdlib.h>
 
  void helpdoc();
 
  main()
  {
          FILE *rfp, *wfp;
          unsigned char ch, c;
          char s[20];
 
          if((rfp=fopen(_argv[1], "r"))==NULL)      /* open the read file */
          {
                  printf("cannot open file %s \n",_argv[1]);
                  helpdoc();
                  exit(-1);
          }
 
          if((wfp=fopen(_argv[2], "wb"))==NULL)     /* open the write file */
          {
                  printf("cannot open file %s \n",_argv[1]);
                  helpdoc();
                  exit(-1);
          }
 
          c=0;
          ch=fgetc(rfp);
          while(!feof(rfp))                       /* loop for whole file */
          {
                  if(isalnum(ch))                 /* only 'see' valid ascii chars */
                  {
                          c=0;
                          while(isdigit(ch))      /* only use decimal digits (0-9) */
                          {
                                  s[c]=ch;        /* build a string containing the number */
                                  c++;
                                  ch=fgetc(rfp);
                          }
                          s[c]=NULL;              /* must have NULL terminator */
                          fputc(atoi(s), wfp);/* write the binary equivalent to file */
                  }
                  ch=fgetc(rfp);                  /* loop until next number starts */
          }
 
          fclose(rfp);                    /* close up */
          fclose(wfp);
  }
 
  void helpdoc()          /* print help message */
  {
          printf("\n   Text File Encoder\n\n");
          printf("\n Syntax:  rec text_file_name binary_file_name\n\n");
          printf("by Dustin Caldwell  (dustin@gse.utah.edu)\n\n");
          printf("This is a program that reads an ascii tab-\n");
          printf("delimited file and builds a binary file where\n");
          printf("each byte of the binary file is one of the decimal\n");
          printf("digits in the text file.\n");
          printf(" eg:\n\n");
          printf("c:\>rec son3.txt son3.mid\n\n");
          printf("(This will create a file called son3.mid which is\n");
          printf("a valid binary file)\n\n");
          printf("(dec.exe may also be useful, as it decodes binary files)\n\n");
          printf("Have Fun!!\n");
  }

[[Standard MIDI Format]]