html-lang.js

100% Statements 10/10

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  /**
 * @file rule: html-lang
 * @author nighca<nighca@live.cn>
 */
 
module.exports = {
 
    name: 'html-lang',
 
    desc: 'Attribute "lang" of <html> recommended to be set.',
 
    lint: function (getCfg, document, reporter) {
        var html = document.querySelector('html');
 
        if (!html || !getCfg(html)) {
            return;
        }
 
        if (!html.getAttribute('lang')) {
            reporter.warn(html.startIndex, '010', 'Attribute "lang" of <html> recommended to be set.');
        }
 
    },
 
    format: function (getCfg, document, options) {
        var html = document.querySelector('html');
 
        if (!html || !getCfg(html) || html.getAttribute('lang')) {
            return;
        }
 
        html.setAttribute('lang', 'zh-CN');
    }
 
};