https://otomailer.com/assets/summernote/_old/v2/codemirror/addon/lint/html-lint.js

1// CodeMirror, copyright (c) by Marijn Haverbeke and others
2// Distributed under an MIT license: https://codemirror.net/LICENSE
3
4// Depends on htmlhint.js from http://htmlhint.com/js/htmlhint.js
5
6// declare global: HTMLHint
7
8(function(mod) {
9  if (typeof exports == "object" && typeof module == "object") // CommonJS
10    mod(require("../../lib/codemirror"), require("htmlhint"));
11  else if (typeof define == "function" && define.amd) // AMD
12    define(["../../lib/codemirror", "htmlhint"], mod);
13  else // Plain browser env
14    mod(CodeMirror, window.HTMLHint);
15})(function(CodeMirror, HTMLHint) {
16  "use strict";
17
18  var defaultRules = {
19    "tagname-lowercase": true,
20    "attr-lowercase": true,
21    "attr-value-double-quotes": true,
22    "doctype-first": false,
23    "tag-pair": true,
24    "spec-char-escape": true,
25    "id-unique": true,
26    "src-not-empty": true,
27    "attr-no-duplication": true
28  };
29
30  CodeMirror.registerHelper("lint", "html", function(text, options) {
31    var found = [];
32    if (HTMLHint && !HTMLHint.verify) {
33      if(typeof HTMLHint.default !== 'undefined') {
34        HTMLHint = HTMLHint.default;
35      } else {
36        HTMLHint = HTMLHint.HTMLHint;
37      }
38    }
39    if (!HTMLHint) HTMLHint = window.HTMLHint;
40    if (!HTMLHint) {
41      if (window.console) {
42          window.console.error("Error: HTMLHint not found, not defined on window, or not available through define/require, CodeMirror HTML linting cannot run.");
43      }
44      return found;
45    }
46    var messages = HTMLHint.verify(text, options && options.rules || defaultRules);
47    for (var i = 0; i < messages.length; i++) {
48      var message = messages[i];
49      var startLine = message.line - 1, endLine = message.line - 1, startCol = message.col - 1, endCol = message.col;
50      found.push({
51        from: CodeMirror.Pos(startLine, startCol),
52        to: CodeMirror.Pos(endLine, endCol),
53        message: message.message,
54        severity : message.type
55      });
56    }
57    return found;
58  });
59});