Fossil

void markdown_to_html(
  struct Blob *input_markdown,   /* Markdown content to be rendered */
  struct Blob *output_title,     /* Put title here.  May be NULL */
  struct Blob *output_body       /* Put document body here. */
){
  blob_reset(output_body);
  char * markdown_string = blob_str(input_markdown);

  if( output_title ) {
    blob_reset(output_title);
    if (strlen(markdown_string) > 0 && markdown_string[0] == '#' ) {
      if (strlen(markdown_string + 1) > 0) {
        char * title_start = markdown_string + 1;
        int i = 0;
        while (markdown_string[i]!='\0' &&
            (markdown_string[i]!='\n' && markdown_string[i]!='\r') ) {
          i++;
        }
        blob_append(output_title, title_start, i);
        markdown_string = markdown_string+i;
      }
    }
  }
  char *cmark_result = cmark_markdown_to_html(markdown_string, strlen(markdown_string), 0 );
  html_prolog(output_body,0);
  blob_append(output_body, cmark_result, strlen(cmark_result));
  html_epilog(output_body,0);
  free(cmark_result);
}