rebem-classname/build/index.js

Helpers for composing and parsing BEM classNames

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});
exports.stringify = stringify;

var _validate = require('./validate.js');

Object.defineProperty(exports, 'validate', {
    enumerable: true,
    get: function get() {
        return _interopRequireDefault(_validate).default;
    }
});

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var modDelim = process.env.REBEM_MOD_DELIM || '_';
var elemDelim = process.env.REBEM_ELEM_DELIM || '__';

function stringify(props) {
    if (!props) {
        return '';
    }

    var out = '';

    // block
    if (typeof props.block !== 'undefined') {
        (function () {
            out += (out ? ' ' : '') + props.block;

            // elem
            if (typeof props.elem !== 'undefined') {
                out += elemDelim + props.elem;
            }

            var entity = out;

            if (typeof props.mods !== 'undefined') {
                Object.keys(props.mods).forEach(function (modName) {
                    var modValue = props.mods[modName];
                    var modValueString = '';

                    if (modValue !== false) {
                        // 'short' boolean mods
                        if (modValue !== true) {
                            modValueString += modDelim + modValue;
                        }

                        out += ' ' + entity + modDelim + modName + modValueString;
                    }
                });
            }
        })();
    }

    if (typeof props.mix !== 'undefined') {
        // convert object or array into array
        var mixes = [].concat(props.mix);

        mixes
        // filter holes in array
        .filter(function (mix) {
            return mix;
        }).forEach(function (mix) {
            out += (out ? ' ' : '') + stringify(mix);
        });
    }

    if (typeof props.className !== 'undefined') {
        out += (out ? ' ' : '') + props.className;
    }

    return out;
}