html-to-article-json/dist/normalize/flatten-tree.js

Converting HTML to article-json

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
var rowHasContent = function rowHasContent(row) {
  return row.content && row.content.trim().length > 0;
};
var rowHasSize = function rowHasSize(row) {
  return row.type === 'linebreak' || rowHasContent(row);
};
var hasSize = function hasSize(inlineElements) {
  return inlineElements.some(rowHasSize);
};

var flattenTree = function flattenTree(tree) {
  var result = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];

  var inlineElements = void 0;

  tree.forEach(function (child) {
    if (child.type === 'text' || child.type === 'linebreak') {
      if (inlineElements) {
        inlineElements.push(child);
      } else {
        inlineElements = [child];
      }
    } else {
      if (inlineElements && hasSize(inlineElements)) {
        result.push({
          type: 'paragraph',
          children: inlineElements
        });
        inlineElements = null;
      }

      if (child.type === 'blockquote') {
        result.push({
          type: 'blockquote',
          pullQuote: !!child.pullQuote,
          children: flattenTree(child.children)
        });
      } else if (child.type === 'block') {
        flattenTree(child.children, result);
      } else {
        result.push(child);
      }
    }
  });

  if (inlineElements && hasSize(inlineElements)) {
    result.push({
      type: 'paragraph',
      children: inlineElements
    });
  }
  return result;
};

exports.default = flattenTree;