js-markdown/lib/syntax/inline/Superscript.js

A markdown language js compiler.

/**
 * match a superscript to display footnote number
 *
 * syntax like this:
 *
 *  see footnote1 [^footnote1]
 *  [^footnote1]: this is a footnote.
 *
 */
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

function parse(str, children, renderTree) {
  var result = str.match(/^\[\^(.*?)\]/);

  if (!result) {
    return;
  }

  for (var i = 0, len = renderTree.footnotes.length; i < len; i++) {
    if (renderTree.footnotes[i].key === result[1]) {
      // if one footnote is not used, it will be ignored and not rendered
      renderTree.footnotes[i].activated = true;
      return [{
        type: 'Superscript',
        index: i + 1,
        rawValue: ''
      }, result[0].length];
    }
  }

  return;
}

function render() {
  var data = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
  var node = arguments.length > 1 ? arguments[1] : undefined;
  return "<sup id=\"fnref".concat(node.index, "\">[<a href=\"#fn").concat(node.index, "\" rel=\"footnote\">").concat(node.index, "</a>]</sup>");
}

var _default = {
  parse: parse,
  render: render
};
exports["default"] = _default;