joytpl/runtime.js

joy - js template engine with short syntax and modern features

(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        define([], factory);
    } else if (typeof module === 'object' && module.exports) {
        module.exports = factory();
    } else {
        root.joy = factory();
    }
}(typeof self !== 'undefined' ? self : this, function () {
    var entityMap = {
        '&': '&',
        '<': '&lt;',
        '>': '&gt;',
        '"': '&quot;',
        "'": '&#39;',
        '/': '&#x2F;',
        '`': '&#x60;',
        '=': '&#x3D;'
    };

    function escape(string) {
        return String(string).replace(/[&<>"'`=\/]/g, function(s) {
            return entityMap[s];
        });
    }

    escape.short = 'e';

    function havValue(value) {
        return value !== undefined;
    }

    havValue.short = 'v';

    function loop(obj, cb) {
        return (obj || []).map(cb).join('');
    }

    loop.short = 'l';

    function print(value) {
        if (value === undefined || value === null) {
            return '';
        }

        return value;
    }

    print.short = 'p';

    function options(value) {
        if (value === undefined) {
            value = {};
        }

        var onlyContent = true;

        if (value !== null && typeof value === 'object') {
            for(var prop in value) {
                if (value.hasOwnProperty(prop)) {
                    if (prop !== 'content') {
                        onlyContent = false;
                        break;
                    }
                }
            }
        }

        if (onlyContent) {
            try {
                value = JSON.parse(value.content);
            }
            catch (err) {}

            return value;
        }

        return value;
    }

    options.short = 'o';

    return {
        escape: escape,
        e: escape,
        hasValue: havValue,
        v: havValue,
        loop: loop,
        l: loop,
        print: print,
        p: print,
        options: options,
        o: options
    };
}));