front-matter-markdown/lib/markdown/get-toc-from-heading.js

get the config and toc object from the markdown string.

(function() {
  var AstParser, extractType, getHeadingSection, getListSection, getToc, headings2FileObject, isArray, isFunction, isString, markdown, skipSpace;

  isString = require('util-ex/lib/is/type/string');

  isArray = require('util-ex/lib/is/type/array');

  isFunction = require('util-ex/lib/is/type/function');

  markdown = require('./');

  getHeadingSection = require('./get-heading-section');

  getListSection = require('./get-list-section');

  skipSpace = require('./skip-space');

  extractType = require('./extract-type');

  AstParser = require('./ast-parser');

  headings2FileObject = require('./ast-headings-to-file-object');

  module.exports = getToc = function(aContent, aOptions) {
    var firstLevel, links, maxDepth, result;
    if (aOptions == null) {
      aOptions = {};
    }
    firstLevel = aOptions.firstLevel || 1;
    maxDepth = aOptions.maxDepth || 3;
    if (isString(aContent)) {
      aContent = markdown.lexer(aContent);
    }
    links = aContent.links;
    result = extractType(aContent, 'heading', function(node) {
      var reserved;
      reserved = node.depth >= firstLevel && (node.depth - firstLevel) < maxDepth;
      if (reserved && isFunction(aOptions.filter)) {
        reserved = aOptions.filter(node.text);
      }
      return reserved;
    });
    if (result && result.length) {
      if (links) {
        result.links = links;
      }
      result = AstParser.parse(result);
      result = headings2FileObject(result);
    }
    return result;
  };

}).call(this);

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