script to parse newlines/carriage returns/CRLF's preceeded by a =, useful in the processing of mhtml files

mhtmlparse.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// deletes =\n =\r\n and =\r, meant for MHTML files
// -s flag for silent processing
int main(int argc, char *argv[])
{
  int c;
  int silent = 0;
  if (argc > 1 && strcmp(argv[1], "-s") == 0) silent = 1; 
  while ((c = getchar()) != EOF) {
    if (c == '=') {
      if (!silent) fprintf(stderr, "= detected || ");
      c = getchar();
      if (c == EOF) return EXIT_SUCCESS;
      if (c == 13) {
        c = getchar();
        if (c == '\n') {
          c = getchar();
          if (!silent) fprintf(stderr, "=CRLF detected\n");
        } else {
          if (!silent) fprintf(stderr, "[13] detected\n");
        } 
      } else if (c == '\n') {
        c = getchar();
        if (!silent) fprintf(stderr, "\\n detected\n");
      } else {
        printf("=");
        if (!silent) fprintf(stderr, "[%d] detected\n", c);
      } 
    }
    printf("%c", c);
  }
  return EXIT_SUCCESS;
}