Function WriteTextComment

filter/common.c:448–512

 */

void
WriteTextComment(const char *name,	/* I - Comment name ("Title", etc.) */
                 const char *value)	/* I - Comment value */
{
  int	len;				/* Current line length */


 /*
  * DSC comments are of the form:
  *
  *   %%name: value
  *
  * The name and value must be limited to 7-bit ASCII for most printers,
  * so we escape all non-ASCII and ASCII control characters as described
  * in the Adobe Document Structuring Conventions specification.
  */

  printf("%%%%%s: (", name);
  len = 5 + (int)strlen(name);

  while (*value)
  {
    if (*value < ' ' || *value >= 127)
    {
     /*
      * Escape this character value...
      */

      if (len >= 251)			/* Keep line < 254 chars */
        break;

      printf("\\%03o", *value & 255);
      len += 4;
    }
    else if (*value == '\\')
    {
     /*
      * Escape the backslash...
      */

      if (len >= 253)			/* Keep line < 254 chars */
        break;

      putchar('\\');
      putchar('\\');
      len += 2;
    }
    else
    {
     /*
      * Put this character literally...
      */

      if (len >= 254)			/* Keep line < 254 chars */
        break;

      putchar(*value);
      len ++;