hexo-filter-text-autospace/lib/tree-adapter.js

A hexo plugin to insert spaces between CJK chars and latin chars.

const treeAdapter = require("parse5/lib/tree-adapters/default");

module.exports = treeAdapter;

treeAdapter.setTextNodeContent = function (node, text) {
  node.value = text;
}

treeAdapter.getNodeIndex = function (node) {
  return node.parentNode.childNodes.indexOf(node);
}

treeAdapter.isEmptyTextNode = function (node) {
  let text = treeAdapter.getTextNodeContent(node);
  return (!text || text.search(/^\n+\s+$/) > -1);
}

treeAdapter.insertPlaceholderTagBefore = function (node, tagName) {
  this.insertBefore(
    treeAdapter.getParentNode(node),
    this.createElement(tagName, "http://www.w3.org/1999/xhtml", []),
    node
  );
}

treeAdapter.insertPlaceholderTagAfter = function (node, tagName) {
  let parentNode = treeAdapter.getParentNode(node);
  let newNode = this.createElement(tagName, "http://www.w3.org/1999/xhtml", []);

  const insertionIdx = parentNode.childNodes.indexOf(node);

  parentNode.childNodes.splice(insertionIdx + 1, 0, newNode);
  newNode.parentNode = parentNode;
}