snakeskin
Version:
Компилятор блочных шаблонов c поддержкой наследования.
1,263 lines (1,071 loc) • 484 kB
JavaScript
/*!
* Snakeskin v6.4.0
* https://github.com/kobezzza/Snakeskin
*
* Released under the MIT license
* https://github.com/kobezzza/Snakeskin/blob/master/LICENSE
*
* Date: Sun, 30 Nov 2014 08:22:13 GMT
*/
var DP$0 = Object.defineProperty;/*!
* Полифилы, необходимые для работы live библиотеки
* в старых браузерах
*/
Array.isArray = Array.isArray || /* istanbul ignore next */ function (obj) {
return ({}).toString.call(obj) === '[object Array]';
};
String.prototype.trim = String.prototype.trim || /* istanbul ignore next */ function () {
var str = this.replace(/^\s\s*/, ''),
i = str.length;
for (var rgxp = /\s/; rgxp.test(str.charAt(--i));) {}
return str.substring(0, i + 1);
};
/** @type {!Object} */
var Snakeskin = {
/**
* Версия Snakeskin
*
* @expose
* @type {!Array}
*/
VERSION: [6, 4, 0],
/**
* Пространство имён для директив
* @type {!Object}
*/
Directions: {},
/**
* Пространство имён для фильтров
*
* @expose
* @type {!Object}
*/
Filters: {},
/**
* Пространство имён для суперглобальных переменных
*
* @expose
* @type {!Object}
*/
Vars: {},
/**
* Пространство имён для локальных переменных
* области декларации шаблонов
*
* @expose
* @type {!Object}
*/
LocalVars: {},
/**
* Кеш шаблонов
*
* @expose
* @type {!Object}
*/
cache: {}
};
(function (root) {
var IS_NODE = false;
try {
IS_NODE = 'object' === typeof process && Object.prototype.toString.call(process) === '[object process]';
} catch (ignore) {
}
/*!
* Методы live библиотеки Snakeskin
*/
if (/\[native code]/.test(Object.keys && Object.keys.toString())) {
var keys = Object.keys;
}
/**
* Конструктор объекта StringBuffer
*
* @expose
* @constructor
* @return {!Array}
*/
Snakeskin.StringBuffer = function () {
return [];
};
/**
* Итератор массива или объекта (с проверкой hasOwnProperty)
*
* @expose
* @param {(Array|Object|undefined)} obj - исходный объект
* @param {(function(?, number, !Array, boolean, boolean, number)|function(?, string, !Object, number, boolean, boolean, number))} callback - функция обратного вызова
*/
Snakeskin.forEach = function (obj, callback) {
if (!obj) {
return;
}
var length = 0;
if (Array.isArray(obj)) {
length = obj.length;
for (var i = -1; ++i < length;) {
if (callback(obj[i], i, obj, i === 0, i === length - 1, length) === false) {
break;
}
}
} else if (keys) {
var arr = keys(obj);
length = arr.length;
for (var i$1 = -1; ++i$1 < length;) {
if (callback(obj[arr[i$1]], arr[i$1], obj, i$1, i$1 === 0, i$1 === length - 1, length) === false) {
break;
}
}
} else {
var i$2 = 0;
if (callback.length >= 6) {
for (var key in obj) {
/* istanbul ignore if */
if (!obj.hasOwnProperty(key)) {
continue;
}
length++;
}
}
for (var key$3 in obj) {
/* istanbul ignore if */
if (!obj.hasOwnProperty(key$3)) {
continue;
}
if (callback(obj[key$3], key$3, obj, i$2, i$2 === 0, i$2 === length - 1, length) === false) {
break;
}
i$2++;
}
}
};
/**
* Итератор объекта без проверки hasOwnProperty
*
* @expose
* @param {(Object|undefined)} obj - исходный объект
* @param {function(?, string, !Object, number, boolean, boolean, number)} callback - функция обратного вызова
*/
Snakeskin.forIn = function (obj, callback) {
if (!obj) {
return;
}
var length = 0,
i = 0;
if (callback.length >= 6) {
for (var key in obj) {
length++;
}
}
for (var key$4 in obj) {
if (callback(obj[key$4], key$4, obj, i, i === 0, i === length - 1, length) === false) {
break;
}
i++;
}
};
/**
* Итератор объекта
*
* @param {(Object|undefined)} obj - исходный объект
* @param {function(?, string, !Object)} callback - функция обратного вызова
*/
function forIn(obj, callback) {
if (!obj) {
return;
}
if (keys) {
var arr = keys(obj),
length = arr.length;
for (var i = -1; ++i < length;) {
if (callback(obj[arr[i]], arr[i], obj) === false) {
break;
}
}
} else {
for (var key in obj) {
/* istanbul ignore if */
if (!obj.hasOwnProperty(key)) {
continue;
}
if (callback(obj[key], key, obj) === false) {
break;
}
}
}
}
var inlineTagMap = {
'img': true,
'link': true,
'embed': true,
'br': true,
'hr': true,
'wbr': true,
'meta': true,
'input': true,
'source': true,
'track': true,
'base': true,
'area': true,
'col': true,
'param': true
};
/**
* Вставить заданный узел или текст в исходный
*
* @expose
* @param {!Node} node - исходный элемент
* @param {(!Node|string)} obj - элемент для вставки или текст
* @return {(!Node|string)}
*/
Snakeskin.appendChild = function (node, obj) {
if (node['tagName'] && inlineTagMap[node['tagName'].toLowerCase()]) {
return String(obj).trim();
}
if (typeof obj === 'string') {
obj = document.createTextNode(obj);
}
node.appendChild(obj);
return obj;
};
/*!
* Набор базовых фильтров и методы для работы с ними
*/
/**
* Импортировать свойства заданного объекта в пространство имён Snakeskin.Filters
*
* @expose
* @param {!Object} filters - импортируемый объект
* @param {?string=} [opt_namespace] - пространство имён для сохранения, например, foo.bar
*/
Snakeskin.importFilters = function (filters, opt_namespace) {
var obj = Snakeskin.Filters;
if (opt_namespace) {
var parts = opt_namespace.split('.');
for (var i = -1; ++i < parts.length;) {
if (!obj[parts[i]]) {
obj[parts[i]] = {};
}
obj = obj[parts[i]];
}
}
forIn(filters, function(filter, key) {
obj[key] = filter;
});
};
var symbols =
'\\u0041-\\u005A\\u0061-\\u007A\\u00AA\\u00B5\\u00BA\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02C1' +
'\\u02C6-\\u02D1\\u02E0-\\u02E4\\u02EC\\u02EE\\u0370-\\u0374\\u0376\\u0377\\u037A-\\u037D\\u0386\\u0388-\\u038A' +
'\\u038C\\u038E-\\u03A1\\u03A3-\\u03F5\\u03F7-\\u0481\\u048A-\\u0525\\u0531-\\u0556\\u0559\\u0561-\\u0587' +
'\\u05D0-\\u05EA\\u05F0-\\u05F2\\u0621-\\u064A\\u066E\\u066F\\u0671-\\u06D3\\u06D5\\u06E5\\u06E6\\u06EE\\u06EF\\u06FA-\\u06FC' +
'\\u06FF\\u0710\\u0712-\\u072F\\u074D-\\u07A5\\u07B1\\u07CA-\\u07EA\\u07F4\\u07F5\\u07FA\\u0800-\\u0815\\u081A\\u0824' +
'\\u0828\\u0904-\\u0939\\u093D\\u0950\\u0958-\\u0961\\u0971\\u0972\\u0979-\\u097F\\u0985-\\u098C\\u098F\\u0990' +
'\\u0993-\\u09A8\\u09AA-\\u09B0\\u09B2\\u09B6-\\u09B9\\u09BD\\u09CE\\u09DC\\u09DD\\u09DF-\\u09E1\\u09F0\\u09F1\\u0A05-\\u0A0A' +
'\\u0A0F\\u0A10\\u0A13-\\u0A28\\u0A2A-\\u0A30\\u0A32\\u0A33\\u0A35\\u0A36\\u0A38\\u0A39\\u0A59-\\u0A5C\\u0A5E\\u0A72-\\u0A74\\u0A85-\\u0A8D' +
'\\u0A8F-\\u0A91\\u0A93-\\u0AA8\\u0AAA-\\u0AB0\\u0AB2\\u0AB3\\u0AB5-\\u0AB9\\u0ABD\\u0AD0\\u0AE0\\u0AE1\\u0B05-\\u0B0C\\u0B0F\\u0B10' +
'\\u0B13-\\u0B28\\u0B2A-\\u0B30\\u0B32\\u0B33\\u0B35-\\u0B39\\u0B3D\\u0B5C\\u0B5D\\u0B5F-\\u0B61\\u0B71\\u0B83\\u0B85-\\u0B8A\\u0B8E-\\u0B90' +
'\\u0B92-\\u0B95\\u0B99\\u0B9A\\u0B9C\\u0B9E\\u0B9F\\u0BA3\\u0BA4\\u0BA8-\\u0BAA\\u0BAE-\\u0BB9\\u0BD0\\u0C05-\\u0C0C' +
'\\u0C0E-\\u0C10\\u0C12-\\u0C28\\u0C2A-\\u0C33\\u0C35-\\u0C39\\u0C3D\\u0C58\\u0C59\\u0C60\\u0C61\\u0C85-\\u0C8C\\u0C8E-\\u0C90\\u0C92-\\u0CA8' +
'\\u0CAA-\\u0CB3\\u0CB5-\\u0CB9\\u0CBD\\u0CDE\\u0CE0\\u0CE1\\u0D05-\\u0D0C\\u0D0E-\\u0D10\\u0D12-\\u0D28\\u0D2A-\\u0D39\\u0D3D' +
'\\u0D60\\u0D61\\u0D7A-\\u0D7F\\u0D85-\\u0D96\\u0D9A-\\u0DB1\\u0DB3-\\u0DBB\\u0DBD\\u0DC0-\\u0DC6\\u0E01-\\u0E30\\u0E32\\u0E33' +
'\\u0E40-\\u0E46\\u0E81\\u0E82\\u0E84\\u0E87\\u0E88\\u0E8A\\u0E8D\\u0E94-\\u0E97\\u0E99-\\u0E9F\\u0EA1-\\u0EA3\\u0EA5' +
'\\u0EA7\\u0EAA\\u0EAB\\u0EAD-\\u0EB0\\u0EB2\\u0EB3\\u0EBD\\u0EC0-\\u0EC4\\u0EC6\\u0EDC\\u0EDD\\u0F00\\u0F40-\\u0F47' +
'\\u0F49-\\u0F6C\\u0F88-\\u0F8B\\u1000-\\u102A\\u103F\\u1050-\\u1055\\u105A-\\u105D\\u1061\\u1065\\u1066' +
'\\u106E-\\u1070\\u1075-\\u1081\\u108E\\u10A0-\\u10C5\\u10D0-\\u10FA\\u10FC\\u1100-\\u1248\\u124A-\\u124D\\u1250-\\u1256' +
'\\u1258\\u125A-\\u125D\\u1260-\\u1288\\u128A-\\u128D\\u1290-\\u12B0\\u12B2-\\u12B5\\u12B8-\\u12BE\\u12C0\\u12C2-\\u12C5' +
'\\u12C8-\\u12D6\\u12D8-\\u1310\\u1312-\\u1315\\u1318-\\u135A\\u1380-\\u138F\\u13A0-\\u13F4\\u1401-\\u166C\\u166F-\\u167F' +
'\\u1681-\\u169A\\u16A0-\\u16EA\\u1700-\\u170C\\u170E-\\u1711\\u1720-\\u1731\\u1740-\\u1751\\u1760-\\u176C\\u176E-\\u1770' +
'\\u1780-\\u17B3\\u17D7\\u17DC\\u1820-\\u1877\\u1880-\\u18A8\\u18AA\\u18B0-\\u18F5\\u1900-\\u191C\\u1950-\\u196D' +
'\\u1970-\\u1974\\u1980-\\u19AB\\u19C1-\\u19C7\\u1A00-\\u1A16\\u1A20-\\u1A54\\u1AA7\\u1B05-\\u1B33\\u1B45-\\u1B4B\\u1B83-\\u1BA0' +
'\\u1BAE\\u1BAF\\u1C00-\\u1C23\\u1C4D-\\u1C4F\\u1C5A-\\u1C7D\\u1CE9-\\u1CEC\\u1CEE-\\u1CF1\\u1D00-\\u1DBF\\u1E00-\\u1F15' +
'\\u1F18-\\u1F1D\\u1F20-\\u1F45\\u1F48-\\u1F4D\\u1F50-\\u1F57\\u1F59\\u1F5B\\u1F5D\\u1F5F-\\u1F7D\\u1F80-\\u1FB4\\u1FB6-\\u1FBC' +
'\\u1FBE\\u1FC2-\\u1FC4\\u1FC6-\\u1FCC\\u1FD0-\\u1FD3\\u1FD6-\\u1FDB\\u1FE0-\\u1FEC\\u1FF2-\\u1FF4\\u1FF6-\\u1FFC\\u2071\\u207F' +
'\\u2090-\\u2094\\u2102\\u2107\\u210A-\\u2113\\u2115\\u2119-\\u211D\\u2124\\u2126\\u2128\\u212A-\\u212D\\u212F-\\u2139\\u213C-\\u213F' +
'\\u2145-\\u2149\\u214E\\u2183\\u2184\\u2C00-\\u2C2E\\u2C30-\\u2C5E\\u2C60-\\u2CE4\\u2CEB-\\u2CEE\\u2D00-\\u2D25\\u2D30-\\u2D65\\u2D6F' +
'\\u2D80-\\u2D96\\u2DA0-\\u2DA6\\u2DA8-\\u2DAE\\u2DB0-\\u2DB6\\u2DB8-\\u2DBE\\u2DC0-\\u2DC6\\u2DC8-\\u2DCE\\u2DD0-\\u2DD6\\u2DD8-\\u2DDE' +
'\\u2E2F\\u3005\\u3006\\u3031-\\u3035\\u303B\\u303C\\u3041-\\u3096\\u309D-\\u309F\\u30A1-\\u30FA\\u30FC-\\u30FF\\u3105-\\u312D\\u3131-\\u318E\\u31A0-\\u31B7' +
'\\u31F0-\\u31FF\\u3400-\\u4DB5\\u4E00-\\u9FCB\\uA000-\\uA48C\\uA4D0-\\uA4FD\\uA500-\\uA60C\\uA610-\\uA61F\\uA62A\\uA62B\\uA640-\\uA65F\\uA662-\\uA66E\\uA67F-\\uA697' +
'\\uA6A0-\\uA6E5\\uA717-\\uA71F\\uA722-\\uA788\\uA78B\\uA78C\\uA7FB-\\uA801\\uA803-\\uA805\\uA807-\\uA80A\\uA80C-\\uA822\\uA840-\\uA873\\uA882-\\uA8B3\\uA8F2-\\uA8F7' +
'\\uA8FB\\uA90A-\\uA925\\uA930-\\uA946\\uA960-\\uA97C\\uA984-\\uA9B2\\uA9CF\\uAA00-\\uAA28\\uAA40-\\uAA42\\uAA44-\\uAA4B\\uAA60-\\uAA76\\uAA7A\\uAA80-\\uAAAF\\uAAB1' +
'\\uAAB5\\uAAB6\\uAAB9-\\uAABD\\uAAC0\\uAAC2\\uAADB-\\uAADD\\uABC0-\\uABE2\\uAC00-\\uD7A3\\uD7B0-\\uD7C6\\uD7CB-\\uD7FB\\uF900-\\uFA2D\\uFA30-\\uFA6D\\uFA70-\\uFAD9' +
'\\uFB00-\\uFB06\\uFB13-\\uFB17\\uFB1D\\uFB1F-\\uFB28\\uFB2A-\\uFB36\\uFB38-\\uFB3C\\uFB3E\\uFB40\\uFB41\\uFB43\\uFB44\\uFB46-\\uFBB1\\uFBD3-\\uFD3D\\uFD50-\\uFD8F' +
'\\uFD92-\\uFDC7\\uFDF0-\\uFDFB\\uFE70-\\uFE74\\uFE76-\\uFEFC\\uFF21-\\uFF3A\\uFF41-\\uFF5A\\uFF66-\\uFFBE\\uFFC2-\\uFFC7\\uFFCA-\\uFFCF' +
'\\uFFD2-\\uFFD7\\uFFDA-\\uFFDC'
;
var w = (("" + symbols) + "0-9_");
var entityMap = {
'&': '&',
'<': '<',
'>': '>',
'"': '"',
'\'': '''
//,'/': '/'
};
var escapeHTMLRgxp = /[<>"'\/]|&(?!#|[a-z]+;)/g,
escapeAttrRgxp = new RegExp((("([$" + w) + "]\\s*=\\s*)([^\"'\\s>=]+)"), 'g'),
escapeJavaScript = /(javascript)(:|;)/,
escapeHTML = function(s) {return entityMap[s] || s};
/**
* Экранирование HTML сущностей
*
* @expose
* @param {*} str - исходная строка
* @param {?boolean=} [opt_attr=false] - если true, то дополнительное экранируются html атрибуты
* @param {?boolean=} [opt_escapedAttr=false] - если true, то атрибут считается принудительно экранированным
* @return {string}
*/
Snakeskin.Filters.html = function (str, opt_attr, opt_escapedAttr) {
var res = String(str);
if (opt_attr && opt_escapedAttr) {
res = res.replace(escapeAttrRgxp, '$1"$2"');
}
res = res.replace(escapeHTMLRgxp, escapeHTML);
if (opt_attr) {
res = res.replace(escapeJavaScript, '$1$2');
}
return res;
};
/**
* Замена undefined на ''
*
* @expose
* @param {*} str - исходная строка
* @return {*}
*/
Snakeskin.Filters.undef = function (str) {
return str !== void 0 ? str : '';
};
(function() {
var uentityMap = {
'&': '&',
'<': '<',
'>': '>',
'"': '"',
''': '\'',
'/': '/'
};
var uescapeHTMLRgxp = /&|<|>|"|'|//g,
uescapeHTML = function(s) {return uentityMap[s]};
/**
* Снятие экранирования HTML сущностей
*
* @param {*} str - исходная строка
* @return {string}
*/
Snakeskin.Filters['uhtml'] = function (str) {
return String(str).replace(uescapeHTMLRgxp, uescapeHTML);
};
var stripTagsRgxp = /<\/?[^>]+>/g;
/**
* Удаление HTML тегов
*
* @param {*} str - исходная строка
* @return {string}
*/
Snakeskin.Filters['stripTags'] = function (str) {
return String(str).replace(stripTagsRgxp, '');
};
var uriO = /%5B/g,
uriC = /%5D/g;
/* istanbul ignore next */
/**
* Кодирование URL
*
* @see https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/encodeURI
* @param {*} str - исходная строка
* @return {string}
*/
Snakeskin.Filters['uri'] = function (str) {
return encodeURI(String(str))
.replace(uriO, '[')
.replace(uriC, ']');
};
/**
* Перевод строки в верхний регистр
*
* @param {*} str - исходная строка
* @return {string}
*/
Snakeskin.Filters['upper'] = function (str) {
return String(str).toUpperCase();
};
/**
* Перевод первой буквы строки в верхний регистр
*
* @param {*} str - исходная строка
* @return {string}
*/
Snakeskin.Filters['ucfirst'] = function (str) {
str = String(str);
return str.charAt(0).toUpperCase() + str.substring(1);
};
/**
* Перевод строки в нижний регистр
*
* @param {*} str - исходная строка
* @return {string}
*/
Snakeskin.Filters['lower'] = function (str) {
return String(str).toLowerCase();
};
/**
* Перевод первой буквы строки в нижний регистр
*
* @param {*} str - исходная строка
* @return {string}
*/
Snakeskin.Filters['lcfirst'] = function (str) {
str = String(str);
return str.charAt(0).toLowerCase() + str.substring(1);
};
/**
* Срез крайних пробелов строки
*
* @param {*} str - исходная строка
* @return {string}
*/
Snakeskin.Filters['trim'] = function (str) {
return String(str).trim();
};
var spaceCollapseRgxp = /\s{2,}/g;
/**
* Срез крайних пробелов строки
* и свёртывание остальных пробелов в один
*
* @param {*} str - исходная строка
* @return {string}
*/
Snakeskin.Filters['collapse'] = function (str) {
return String(str).replace(spaceCollapseRgxp, ' ').trim();
};
/**
* Обрезание строки до заданной длины
* (в конце, если нужно, ставится многоточие)
*
* @param {*} str - исходная строка
* @param {number} length - максимальная длина текста
* @param {?boolean=} [opt_wordOnly=false] - если false, то текст обрезается без учёта целостности слов
* @param {?boolean=} [opt_html=false] - если true, то символ многоточия вставляется как HTML-мнемоник
* @return {string}
*/
Snakeskin.Filters['truncate'] = function (str, length, opt_wordOnly, opt_html) {
str = String(str);
if (!str || str.length <= length) {
return str;
}
var tmp = str.substring(0, length - 1),
lastInd = void 0;
var i = tmp.length;
while (i-- && opt_wordOnly) {
if (tmp.charAt(i) === ' ') {
lastInd = i;
} else if (lastInd !== void 0) {
break;
}
}
return (lastInd !== void 0 ? tmp.substring(0, lastInd) : tmp) + (opt_html ? '…' : '…');
};
/**
* Генерация строки из повторений исходной подстроки
*
* @param {*} str - исходная строка
* @param {?number=} [opt_num=2] - число повторений
* @return {string}
*/
Snakeskin.Filters['repeat'] = function (str, opt_num) {
return new Array(opt_num != null ? opt_num + 1 : 3).join(str);
};
/**
* Удаление подстроки из строки
*
* @param {*} str - исходная строка
* @param {(string|RegExp)} search - искомая подстрока
* @return {string}
*/
Snakeskin.Filters['remove'] = function (str, search) {
return String(str).replace(search, '');
};
/**
* Замена подстроки в строке
*
* @param {*} str - исходная строка
* @param {(string|!RegExp)} search - искомая подстрока
* @param {string} replace - строка для замены
* @return {string}
*/
Snakeskin.Filters['replace'] = function (str, search, replace) {
return String(str).replace(search, replace);
};
/**
* Преобразование объекта в JSON
*
* @param {(Object|Array|string|number|boolean)} obj - исходный объект
* @return {string}
*/
Snakeskin.Filters['json'] = function (obj) {
return JSON.stringify(obj);
};
/**
* Преобразование объекта в строку
*
* @param {(Object|Array|string|number|boolean)} obj - исходный объект
* @return {string}
*/
Snakeskin.Filters['string'] = function (obj) {
if (typeof obj === 'object' && obj instanceof String === false) {
return JSON.stringify(obj);
}
return String(obj);
};
/**
* Преобразование JSON в объект
*
* @param {*} val - исходное значение
* @return {?}
*/
Snakeskin.Filters['parse'] = function (val) {
if (typeof val !== 'string') {
return val;
}
return JSON.parse(val);
};
/**
* Декларация BEM части
*
* @param {*} block - название блока
* @param {*} part - вторая часть декларации
* @param {(Element|undefined)} node - ссылка на активный узел
* @return {string}
*/
Snakeskin.Filters['bem'] = function (block, part, node) {
return String(block) + String(part);
};
/**
* Задача значения по умолчанию для объекта
*
* @param {*} val - исходное значение
* @param {*} def - значение по умолчанию
* @return {*}
*/
Snakeskin.Filters['default'] = function (val, def) {
return val === void 0 ? def : val;
};
})();
/* istanbul ignore next */
/*jshint curly:true, eqeqeq:true, laxbreak:true, noempty:false */
/*
The MIT License (MIT)
Copyright (c) 2007-2013 Einar Lielmanis and contributors.
Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation files
(the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of the Software,
and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
JS Beautifier
---------------
Written by Einar Lielmanis, <einar@jsbeautifier.org>
http://jsbeautifier.org/
Originally converted to javascript by Vital, <vital76@gmail.com>
"End braces on own line" added by Chris J. Shull, <chrisjshull@gmail.com>
Parsing improvements for brace-less statements by Liam Newman <bitwiseman@gmail.com>
Usage:
js_beautify(js_source_text);
js_beautify(js_source_text, options);
The options are:
indent_size (default 4) - indentation size,
indent_char (default space) - character to indent with,
preserve_newlines (default true) - whether existing line breaks should be preserved,
max_preserve_newlines (default unlimited) - maximum number of line breaks to be preserved in one chunk,
jslint_happy (default false) - if true, then jslint-stricter mode is enforced.
jslint_happy !jslint_happy
---------------------------------
function () function()
switch () { switch() {
case 1: case 1:
break; break;
} }
space_after_anon_function (default false) - should the space before an anonymous function's parens be added, "function()" vs "function ()",
NOTE: This option is overriden by jslint_happy (i.e. if jslint_happy is true, space_after_anon_function is true by design)
brace_style (default "collapse") - "collapse" | "expand" | "end-expand"
put braces on the same line as control statements (default), or put braces on own line (Allman / ANSI style), or just put end braces on own line.
space_before_conditional (default true) - should the space before conditional statement be added, "if(true)" vs "if (true)",
unescape_strings (default false) - should printable characters in strings encoded in \xNN notation be unescaped, "example" vs "\x65\x78\x61\x6d\x70\x6c\x65"
wrap_line_length (default unlimited) - lines should wrap at next opportunity after this number of characters.
NOTE: This is not a hard limit. Lines will continue until a point where a newline would
be preserved if it were present.
end_with_newline (default false) - end output with a newline
e.g
js_beautify(js_source_text, {
'indent_size': 1,
'indent_char': '\t'
});
*/
(function() {
var acorn = {};
(function (exports) {
// This section of code is taken from acorn.
//
// Acorn was written by Marijn Haverbeke and released under an MIT
// license. The Unicode regexps (for identifiers and whitespace) were
// taken from [Esprima](http://esprima.org) by Ariya Hidayat.
//
// Git repositories for Acorn are available at
//
// http://marijnhaverbeke.nl/git/acorn
// https://github.com/marijnh/acorn.git
// ## Character categories
// Big ugly regular expressions that match characters in the
// whitespace, identifier, and identifier-start categories. These
// are only applied when a character is found to actually have a
// code point above 128.
var nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/;
var nonASCIIidentifierStartChars = "\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05d0-\u05ea\u05f0-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u08a0\u08a2-\u08ac\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097f\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c3d\u0c58\u0c59\u0c60\u0c61\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d60\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1877\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191c\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19c1-\u19c7\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1ce9-\u1cec\u1cee-\u1cf1\u1cf5\u1cf6\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2e2f\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fcc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua697\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa80-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc";
var nonASCIIidentifierChars = "\u0300-\u036f\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u0620-\u0649\u0672-\u06d3\u06e7-\u06e8\u06fb-\u06fc\u0730-\u074a\u0800-\u0814\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0840-\u0857\u08e4-\u08fe\u0900-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962-\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09d7\u09df-\u09e0\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2-\u0ae3\u0ae6-\u0aef\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b5f-\u0b60\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c01-\u0c03\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62-\u0c63\u0c66-\u0c6f\u0c82\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2-\u0ce3\u0ce6-\u0cef\u0d02\u0d03\u0d46-\u0d48\u0d57\u0d62-\u0d63\u0d66-\u0d6f\u0d82\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0df2\u0df3\u0e34-\u0e3a\u0e40-\u0e45\u0e50-\u0e59\u0eb4-\u0eb9\u0ec8-\u0ecd\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f41-\u0f47\u0f71-\u0f84\u0f86-\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u1000-\u1029\u1040-\u1049\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u170e-\u1710\u1720-\u1730\u1740-\u1750\u1772\u1773\u1780-\u17b2\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u1920-\u192b\u1930-\u193b\u1951-\u196d\u19b0-\u19c0\u19c8-\u19c9\u19d0-\u19d9\u1a00-\u1a15\u1a20-\u1a53\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1b46-\u1b4b\u1b50-\u1b59\u1b6b-\u1b73\u1bb0-\u1bb9\u1be6-\u1bf3\u1c00-\u1c22\u1c40-\u1c49\u1c5b-\u1c7d\u1cd0-\u1cd2\u1d00-\u1dbe\u1e01-\u1f15\u200c\u200d\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2d81-\u2d96\u2de0-\u2dff\u3021-\u3028\u3099\u309a\ua640-\ua66d\ua674-\ua67d\ua69f\ua6f0-\ua6f1\ua7f8-\ua800\ua806\ua80b\ua823-\ua827\ua880-\ua881\ua8b4-\ua8c4\ua8d0-\ua8d9\ua8f3-\ua8f7\ua900-\ua909\ua926-\ua92d\ua930-\ua945\ua980-\ua983\ua9b3-\ua9c0\uaa00-\uaa27\uaa40-\uaa41\uaa4c-\uaa4d\uaa50-\uaa59\uaa7b\uaae0-\uaae9\uaaf2-\uaaf3\uabc0-\uabe1\uabec\uabed\uabf0-\uabf9\ufb20-\ufb28\ufe00-\ufe0f\ufe20-\ufe26\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f";
var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]");
var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]");
// Whether a single character denotes a newline.
var newline = exports.newline = /[\n\r\u2028\u2029]/;
// Matches a whole line break (where CRLF is considered a single
// line break). Used to count lines.
var lineBreak = /\r\n|[\n\r\u2028\u2029]/g;
// Test whether a given character code starts an identifier.
var isIdentifierStart = exports.isIdentifierStart = function(code) {
if (code < 65) return code === 36;
if (code < 91) return true;
if (code < 97) return code === 95;
if (code < 123)return true;
return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code));
};
// Test whether a given character is part of an identifier.
var isIdentifierChar = exports.isIdentifierChar = function(code) {
if (code < 48) return code === 36;
if (code < 58) return true;
if (code < 65) return false;
if (code < 91) return true;
if (code < 97) return code === 95;
if (code < 123)return true;
return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code));
};
})(acorn);
function in_array(what, arr) {
for (var i = 0; i < arr.length; i += 1) {
if (arr[i] === what) {
return true;
}
}
return false;
}
function trim(s) {
return s.replace(/^\s+|\s+$/g, '');
}
function js_beautify(js_source_text, options) {
"use strict";
var beautifier = new Beautifier(js_source_text, options);
return beautifier.beautify();
}
var MODE = {
BlockStatement: 'BlockStatement', // 'BLOCK'
Statement: 'Statement', // 'STATEMENT'
ObjectLiteral: 'ObjectLiteral', // 'OBJECT',
ArrayLiteral: 'ArrayLiteral', //'[EXPRESSION]',
ForInitializer: 'ForInitializer', //'(FOR-EXPRESSION)',
Conditional: 'Conditional', //'(COND-EXPRESSION)',
Expression: 'Expression' //'(EXPRESSION)'
};
function Beautifier(js_source_text, options) {
"use strict";
var output
var tokens = [], token_pos;
var Tokenizer;
var current_token;
var last_type, last_last_text, indent_string;
var flags, previous_flags, flag_store;
var prefix;
var handlers, opt;
var baseIndentString = '';
handlers = {
'TK_START_EXPR': handle_start_expr,
'TK_END_EXPR': handle_end_expr,
'TK_START_BLOCK': handle_start_block,
'TK_END_BLOCK': handle_end_block,
'TK_WORD': handle_word,
'TK_RESERVED': handle_word,
'TK_SEMICOLON': handle_semicolon,
'TK_STRING': handle_string,
'TK_EQUALS': handle_equals,
'TK_OPERATOR': handle_operator,
'TK_COMMA': handle_comma,
'TK_BLOCK_COMMENT': handle_block_comment,
'TK_INLINE_COMMENT': handle_inline_comment,
'TK_COMMENT': handle_comment,
'TK_DOT': handle_dot,
'TK_UNKNOWN': handle_unknown,
'TK_EOF': handle_eof
};
function create_flags(flags_base, mode) {
var next_indent_level = 0;
if (flags_base) {
next_indent_level = flags_base.indentation_level;
if (!output.just_added_newline() &&
flags_base.line_indent_level > next_indent_level) {
next_indent_level = flags_base.line_indent_level;
}
}
var next_flags = {
mode: mode,
parent: flags_base,
last_text: flags_base ? flags_base.last_text : '', // last token text
last_word: flags_base ? flags_base.last_word : '', // last 'TK_WORD' passed
declaration_statement: false,
declaration_assignment: false,
multiline_frame: false,
if_block: false,
else_block: false,
do_block: false,
do_while: false,
in_case_statement: false, // switch(..){ INSIDE HERE }
in_case: false, // we're on the exact line with "case 0:"
case_body: false, // the indented case-action block
indentation_level: next_indent_level,
line_indent_level: flags_base ? flags_base.line_indent_level : next_indent_level,
start_line_index: output.get_line_number(),
ternary_depth: 0
};
return next_flags;
}
// Some interpreters have unexpected results with foo = baz || bar;
options = options ? options : {};
opt = {};
// compatibility
if (options.braces_on_own_line !== undefined) { //graceful handling of deprecated option
opt.brace_style = options.braces_on_own_line ? "expand" : "collapse";
}
opt.brace_style = options.brace_style ? options.brace_style : (opt.brace_style ? opt.brace_style : "collapse");
// graceful handling of deprecated option
if (opt.brace_style === "expand-strict") {
opt.brace_style = "expand";
}
opt.indent_size = options.indent_size ? parseInt(options.indent_size, 10) : 4;
opt.indent_char = options.indent_char ? options.indent_char : ' ';
opt.preserve_newlines = (options.preserve_newlines === undefined) ? true : options.preserve_newlines;
opt.break_chained_methods = (options.break_chained_methods === undefined) ? false : options.break_chained_methods;
opt.max_preserve_newlines = (options.max_preserve_newlines === undefined) ? 0 : parseInt(options.max_preserve_newlines, 10);
opt.space_in_paren = (options.space_in_paren === undefined) ? false : options.space_in_paren;
opt.space_in_empty_paren = (options.space_in_empty_paren === undefined) ? false : options.space_in_empty_paren;
opt.jslint_happy = (options.jslint_happy === undefined) ? false : options.jslint_happy;
opt.space_after_anon_function = (options.space_after_anon_function === undefined) ? false : options.space_after_anon_function;
opt.keep_array_indentation = (options.keep_array_indentation === undefined) ? false : options.keep_array_indentation;
opt.space_before_conditional = (options.space_before_conditional === undefined) ? true : options.space_before_conditional;
opt.unescape_strings = (options.unescape_strings === undefined) ? false : options.unescape_strings;
opt.wrap_line_length = (options.wrap_line_length === undefined) ? 0 : parseInt(options.wrap_line_length, 10);
opt.e4x = (options.e4x === undefined) ? false : options.e4x;
opt.end_with_newline = (options.end_with_newline === undefined) ? false : options.end_with_newline;
// force opt.space_after_anon_function to true if opt.jslint_happy
if(opt.jslint_happy) {
opt.space_after_anon_function = true;
}
if(options.indent_with_tabs){
opt.indent_char = '\t';
opt.indent_size = 1;
}
//----------------------------------
indent_string = '';
while (opt.indent_size > 0) {
indent_string += opt.indent_char;
opt.indent_size -= 1;
}
var preindent_index = 0;
if(js_source_text && js_source_text.length) {
while ( (js_source_text.charAt(preindent_index) === ' ' ||
js_source_text.charAt(preindent_index) === '\t')) {
baseIndentString += js_source_text.charAt(preindent_index);
preindent_index += 1;
}
js_source_text = js_source_text.substring(preindent_index);
}
last_type = 'TK_START_BLOCK'; // last token type
last_last_text = ''; // pre-last token text
output = new Output(indent_string, baseIndentString);
// Stack of parsing/formatting states, including MODE.
// We tokenize, parse, and output in an almost purely a forward-only stream of token input
// and formatted output. This makes the beautifier less accurate than full parsers
// but also far more tolerant of syntax errors.
//
// For example, the default mode is MODE.BlockStatement. If we see a '{' we push a new frame of type
// MODE.BlockStatement on the the stack, even though it could be object literal. If we later
// encounter a ":", we'll switch to to MODE.ObjectLiteral. If we then see a ";",
// most full parsers would die, but the beautifier gracefully falls back to
// MODE.BlockStatement and continues on.
flag_store = [];
set_mode(MODE.BlockStatement);
this.beautify = function() {
/*jshint onevar:true */
var local_token, sweet_code;
Tokenizer = new tokenizer(js_source_text, opt, indent_string);
tokens = Tokenizer.tokenize();
token_pos = 0;
while (local_token = get_token()) {
for(var i = 0; i < local_token.comments_before.length; i++) {
// The cleanest handling of inline comments is to treat them as though they aren't there.
// Just continue formatting and the behavior should be logical.
// Also ignore unknown tokens. Again, this should result in better behavior.
handle_token(local_token.comments_before[i]);
}
handle_token(local_token);
last_last_text = flags.last_text;
last_type = local_token.type;
flags.last_text = local_token.text;
token_pos += 1;
}
sweet_code = output.get_code();
if (opt.end_with_newline) {
sweet_code += '\n';
}
return sweet_code;
};
function handle_token(local_token) {
var newlines = local_token.newlines;
var keep_whitespace = opt.keep_array_indentation && is_array(flags.mode);
if (keep_whitespace) {
for (i = 0; i < newlines; i += 1) {
print_newline(i > 0);
}
} else {
if (opt.max_preserve_newlines && newlines > opt.max_preserve_newlines) {
newlines = opt.max_preserve_newlines;
}
if (opt.preserve_newlines) {
if (local_token.newlines > 1) {
print_newline();
for (var i = 1; i < newlines; i += 1) {
print_newline(true);
}
}
}
}
current_token = local_token;
handlers[current_token.type]();
}
// we could use just string.split, but
// IE doesn't like returning empty strings
function split_newlines(s) {
//return s.split(/\x0d\x0a|\x0a/);
s = s.replace(/\x0d/g, '');
var out = [],
idx = s.indexOf("\n");
while (idx !== -1) {
out.push(s.substring(0, idx));
s = s.substring(idx + 1);
idx = s.indexOf("\n");
}
if (s.length) {
out.push(s);
}
return out;
}
function allow_wrap_or_preserved_newline(force_linewrap) {
force_linewrap = (force_linewrap === undefined) ? false : force_linewrap;
if (output.just_added_newline()) {
return
}
if ((opt.preserve_newlines && current_token.wanted_newline) || force_linewrap) {
print_newline(false, true);
} else if (opt.wrap_line_length) {
// We never wrap the first token of a line due to newline check above.
var proposed_line_length = output.current_line.get_character_count() + current_token.text.length +
(output.space_before_token ? 1 : 0);
if (proposed_line_length >= opt.wrap_line_length) {
print_newline(false, true);
}
}
}
function print_newline(force_newline, preserve_statement_flags) {
if (!preserve_statement_flags) {
if (flags.last_text !== ';' && flags.last_text !== ',' && flags.last_text !== '=' && last_type !== 'TK_OPERATOR') {
while (flags.mode === MODE.Statement && !flags.if_block && !flags.do_block) {
restore_mode();
}
}
}
if (output.add_new_line(force_newline)) {
flags.multiline_frame = true;
}
}
function print_token_line_indentation() {
if (output.just_added_newline()) {
if (opt.keep_array_indentation && is_array(flags.mode) && current_token.wanted_newline) {
// prevent removing of this whitespace as redundant
output.current_line.push('');
for (var i = 0; i < current_token.whitespace_before.length; i += 1) {
output.current_line.push(current_token.whitespace_before[i]);
}
output.space_before_token = false;
} else if (output.add_indent_string(flags.indentation_level)) {
flags.line_indent_level = flags.indentation_level;
}
}
}
function print_token(printable_token) {
printable_token = printable_token || current_token.text;
print_token_line_indentation();
output.add_token(printable_token);
}
function indent() {
flags.indentation_level += 1;
}
function deindent() {
if (flags.indentation_level > 0 &&
((!flags.parent) || flags.indentation_level > flags.parent.indentation_level))
flags.indentation_level -= 1;
}
function set_mode(mode) {
if (flags) {
flag_store.push(flags);
previous_flags = flags;
} else {
previous_flags = create_flags(null, mode);
}
flags = create_flags(previous_flags, mode);
}
function is_array(mode) {
return mode === MODE.ArrayLiteral;
}
function is_expression(mode) {
return in_array(mode, [MODE.Expression, MODE.ForInitializer, MODE.Conditional]);
}
function restore_mode() {
if (flag_store.length > 0) {
previous_flags = flags;
flags = flag_store.pop();
if (previous_flags.mode === MODE.Statement) {
output.remove_redundant_indentation(previous_flags);
}
}
}
function start_of_object_property() {
return flags.parent.mode === MODE.ObjectLiteral && flags.mode === MODE.Statement && (
(flags.last_text === ':' && flags.ternary_depth === 0) || (last_type === 'TK_RESERVED' && in_array(flags.last_text, ['get', 'set'])));
}
function start_of_statement() {
if (
(last_type === 'TK_RESERVED' && in_array(flags.last_text, ['var', 'let', 'const']) && current_token.type === 'TK_WORD') ||
(last_type === 'TK_RESERVED' && flags.last_text === 'do') ||
(last_type === 'TK_RESERVED' && flags.last_text === 'return' && !current_token.wanted_newline) ||
(last_type === 'TK_RESERVED' && flags.last_text === 'else' && !(current_token.type === 'TK_RESERVED' && current_token.text === 'if')) ||
(last_type === 'TK_END_EXPR' && (previous_flags.mode === MODE.ForInitializer || previous_flags.mode === MODE.Conditional)) ||
(last_type === 'TK_WORD' && flags.mode === MODE.BlockStatement
&& !flags.in_case
&& !(current_token.text === '--' || current_token.text === '++')
&& current_token.type !== 'TK_WORD' && current_token.type !== 'TK_RESERVED') ||
(flags.mode === MODE.ObjectLiteral && (
(flags.last_text === ':' && flags.ternary_depth === 0) || (last_type === 'TK_RESERVED' && in_array(flags.last_text, ['get', 'set']))))
) {
set_mode(MODE.Statement);
indent();
if (last_type === 'TK_RESERVED' && in_array(flags.last_text, ['var', 'let', 'const']) && current_token.type === 'TK_WORD') {
flags.declaration_statement = true;
}
// Issue #276:
// If starting a new statement with [if, for, while, do], push to a new line.
// if (a) if (b) if(c) d(); else e(); else f();
if (!start_of_object_property()) {
allow_wrap_or_preserved_newline(
current_token.type === 'TK_RESERVED' && in_array(current_token.text, ['do', 'for', 'if', 'while']));
}
return true;
}
return false;
}
function all_lines_start_with(lines, c) {
for (var i = 0; i < lines.length; i++) {
var line = trim(lines[i]);
if (line.charAt(0) !== c) {
return false;
}
}
return true;
}
function each_line_matches_indent(lines, indent) {
var i = 0,
len = lines.length,
line;
for (; i < len; i++) {
line = lines[i];
// allow empty lines to pass through
if (line && line.indexOf(indent) !== 0) {
return false;
}
}
return true;
}
function is_special_word(word) {
return in_array(word, ['case', 'return', 'do', 'if', 'throw', 'else']);
}
function get_token(offset) {
var index = token_pos + (offset || 0);
return (index < 0 || index >= tokens.length) ? null : tokens[index];
}
function handle_start_expr() {
if (start_of_statement()) {
// The conditional starts the statement if appropriate.
}
var next_mode = MODE.Expression;
if (current_token.text === '[') {
if (last_type === 'TK_WORD' || flags.last_text === ')') {
// this is array index specifier, break immediately
// a[x], fn()[x]
if (last_type === 'TK_RESERVED' && in_array(flags.last_text, Tokenizer.line_starters)) {
output.space_before_token = true;
}
set_mode(next_mode);
print_token();
indent();
if (opt.space_in_paren) {
output.space_before_token = true;
}
return;
}
next_mode = MODE.ArrayLiteral;
if (is_array(flags.mode)) {
if (flags.last_text === '[' ||
(flags.last_text === ',' && (last_last_text === ']' || last_last_text === '}'))) {
// ], [ goes to new line
// }, [ goes to new line
if (!opt.keep_array_indentation) {
print_newline();
}
}
}
} else {
if (last_type === 'TK_RESERVED' && flags.last_text === 'for') {
next_mode = MODE.ForInitializer;
} else if (last_type === 'TK_RESERVED' && in_array(flags.last_text, ['if', 'while'])) {
next_mode = MODE.Conditional;
} else {
// next_mode = MODE.Expression;
}
}
if (flags.last_text === ';' || last_type === 'TK_START_BLOCK') {
print_newline();
} else if (last_type === 'TK_END_EXPR' || last_type === 'TK_START_EXPR' || last_type === 'TK_END_BLOCK' || flags.last_text === '.') {
// TODO: Consider whether forcing this is required. Review failing tests when removed.
allow_wrap_or_preserved_newline(current_token.wanted_newline);
// do nothing on (( and )( and ][ and ]( and .(
} else if (!(last_type === 'TK_RESERVED' && current_token.text === '(') && last_type !== 'TK_WORD' && last_type !== 'TK_OPERATOR') {
output.space_before_token = true;
} else if ((last_type === 'TK_RESERVED' && (flags.last_word === 'function' || flags.last_word === 'typeof')) ||
(flags.last_text === '*' && last_last_text === 'function')) {
// function() vs function ()
if (opt.space_after_anon_function) {
output.space_before_token = true;
}
} else if (last_type === 'TK_RESERVED' && (in_array(flags.last_text, Tokenizer.