@marp-team/marpit/lib/postcss/pagination.js

The skinny framework for creating slide deck from Markdown

"use strict";

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

var _postcss = _interopRequireDefault(require("postcss"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/** @module */

/**
 * Marpit PostCSS pagination plugin.
 *
 * Marpit uses `section::after` to show the pagination on each slide. It defines
 * in the scaffold theme.
 *
 * This plugin will comment out a `content` declaration defined in any
 * `section::after` of the root, to prevent override the defined attribute for
 * paginating.
 *
 * @alias module:postcss/pagination
 */
const plugin = _postcss.default.plugin('marpit-postcss-pagination', () => css => {
  css.walkRules(rule => {
    if (rule.selectors.some(selector => /^section(?![\w-])[^\s>+~]*::?after$/.test(selector.replace(/\[.*?\]/g, '')))) rule.walkDecls(/^content$/, decl => {
      if (decl.value !== 'attr(data-marpit-pagination)') decl.replaceWith(`${decl.raw('before')}/* ${decl.toString()}; */`);
    });
  });
});

var _default = plugin;
exports.default = _default;