Fossil

    if( link ) BLOB_APPEND_BLOB(ob, link);
  }else{
    BLOB_APPEND_BLOB(ob, content);
  }
  blob_append(ob, zClose, -1);
  return 1;
}

/* Invoked for @name and #tag tagged words, marked up in the
** output text in a way that JS and CSS can do something
** interesting with them.  This isn't standard Markdown, so
** it's implementation-specific what occurs here.  More, each
** Fossil feature using Markdown is free to apply markup and
** behavior to these in feature-specific ways.
*/
static int html_tagspan(
  struct Blob *ob,        /* Write the output here */
  struct Blob *text,      /* The stuff in between the code span marks */
  enum mkd_tagspan type,  /* which type of tagspan we're creating */
  void *opaque
){
  if( text==0 ){
    /* no-op */
  }else{
    BLOB_APPEND_LITERAL(ob, "<span data-");
    switch (type) {
        case MKDT_ATREF: BLOB_APPEND_LITERAL(ob, "atref"); break;
        case MKDT_HASH:  BLOB_APPEND_LITERAL(ob, "hash");  break;
    }
    BLOB_APPEND_LITERAL(ob, "=\"");
    html_quote(ob, blob_buffer(text), blob_size(text));
    BLOB_APPEND_LITERAL(ob, "\"");
    blob_appendf(ob, ">%b</span>", text);
  }
  return 1;
}

static int html_triple_emphasis(
  struct Blob *ob,
  struct Blob *text,
  char c,
  void *opaque
){

    html_codespan,
    html_double_emphasis,
    html_emphasis,
    html_image,
    html_linebreak,
    html_link,
    html_raw_html_tag,
    html_tagspan,
    html_triple_emphasis,

    /* low level elements */
    0,    /* entity */
    html_normal_text,

    /* misc. parameters */