pro-docs/libs/codemirror/addon/lint/css-lint.js

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

// Depends on csslint.js from https://github.com/stubbornella/csslint

// declare global: CSSLint

;(function (mod) {
    if (typeof exports == 'object' && typeof module == 'object')
        // CommonJS
        mod(require('../../lib/codemirror'))
    else if (typeof define == 'function' && define.amd)
        // AMD
        define(['../../lib/codemirror'], mod)
    // Plain browser env
    else mod(CodeMirror)
})(function (CodeMirror) {
    'use strict'

    CodeMirror.registerHelper('lint', 'css', function (text, options) {
        var found = []
        if (!window.CSSLint) {
            if (window.console) {
                window.console.error('Error: window.CSSLint not defined, CodeMirror CSS linting cannot run.')
            }
            return found
        }
        var results = CSSLint.verify(text, options),
            messages = results.messages,
            message = null
        for (var i = 0; i < messages.length; i++) {
            message = messages[i]
            var startLine = message.line - 1,
                endLine = message.line - 1,
                startCol = message.col - 1,
                endCol = message.col
            found.push({
                from: CodeMirror.Pos(startLine, startCol),
                to: CodeMirror.Pos(endLine, endCol),
                message: message.message,
                severity: message.type,
            })
        }
        return found
    })
})