Function show

tools/json-graph/src/jgflib.c:282–303

Outputs the token to open file fp. When do_quote is > 0, output token double-quoted, when do_quote is < 0, output token without double-quotes, otherwise first investigate and quote appropriately when needed. */

    otherwise first investigate and quote appropriately when needed.
*/
void show(FILE *fp, jsmntok_t *tok, int do_quote)
{
  /* start (0-based), end (= 1 beyond last): byte positions in input
     meaning of size depends on token type:
     object: number of keys
     array:  number of elements
     string: 0 for value, 1 for key
     primitive (number,false,true,null): no meaning, 0
  */
  if (!do_quote) {
    /* Observe dot ID syntax; must quote when non-alnum. */
    const char *p;
    for (p = input + tok->start; p < input + tok->end; p++)
      if (isspace(*p) || ispunct(*p) && *p != '_') {
	do_quote = 1;
	break;
      }
  }
  if (do_quote > 0) fputc('"', fp);
  fwrite(input + tok->start, 1, tok->end - tok->start, fp);
  if (do_quote > 0) fputc('"', fp);
}

/** Outputs up to the first 16 chars of token to fp. */
static void show_16(FILE *fp, jsmntok_t *tok)