Zaka's Amazing VNTS re-formatter

/*
  intention: replace all instances of > with an HTML color code and terminate all such lines with closing tags

  Current implementation breaks somewhat (but not catastrophically?) if there is a > on a line and it is not the first character on said line.
  Otherwise, it seems to test well. Wood-touching advised.
*/

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

#define COLOR_CODE "<strong><span style=\"color: #99cc00;\">"
#define CLOSING_TAGS "</strong></span>\n"

int main(int argc, char *argv[]) {

  //over 9000 debug messages
  printf("filename: %s\n", argv[1]);
  printf("starting, oh god what have I done\n");
  printf(COLOR_CODE);
  printf("\n");

  if (argc < 3) {
    printf("Usage: stedit(.exe) infile outfile.\nInfile is the file to be processed. Outfile will contain the result, and will be created if not present (probably).");
      exit(EXIT_FAILURE);
      }

  FILE *infile = fopen(argv[1], "r");
  FILE *outfile = fopen(argv[2], "w");
  int closetags = 0;

  for (char c = fgetc(infile); c != EOF; c = fgetc(infile)) {
    printf("loop nya! %c\n", c, stdin);

    if (c == '>' && closetags == 0) {
      printf("match nyan\n", stdin);
      fputs (COLOR_CODE, outfile); // line has >, add HTML color tag
      closetags = 1;
    } else if (c == '\n' && closetags == 1) {
      fputs(CLOSING_TAGS, outfile); // if added, close HTML tags
    closetags = 0;
    } else fputc(c, outfile); // else no processing needed, copy char to outfile
}

  if (closetags == 1) fputs(CLOSING_TAGS, outfile); //special case for closing tags at EOF

  fclose(outfile);
  fclose(infile);
  printf("You have successfully completed mauling the c language and mocking the programmers' art");
  return 0;
}