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

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

;(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'

    // Depends on js-yaml.js from https://github.com/nodeca/js-yaml

    // declare global: jsyaml

    CodeMirror.registerHelper('lint', 'yaml', function (text) {
        var found = []
        if (!window.jsyaml) {
            if (window.console) {
                window.console.error('Error: window.jsyaml not defined, CodeMirror YAML linting cannot run.')
            }
            return found
        }
        try {
            jsyaml.loadAll(text)
        } catch (e) {
            var loc = e.mark,
                // js-yaml YAMLException doesn't always provide an accurate lineno
                // e.g., when there are multiple yaml docs
                // ---
                // ---
                // foo:bar
                from = loc ? CodeMirror.Pos(loc.line, loc.column) : CodeMirror.Pos(0, 0),
                to = from
            found.push({ from: from, to: to, message: e.message })
        }
        return found
    })
})