/*! Browser bundle of nunjucks 3.2.3  */
(function webpackUniversalModuleDefinition(root, factory) {
	if(typeof exports === 'object' && typeof module === 'object')
		module.exports = factory();
	else if(typeof define === 'function' && define.amd)
		define([], factory);
	else if(typeof exports === 'object')
		exports["nunjucks"] = factory();
	else
		root["nunjucks"] = factory();
})(typeof self !== 'undefined' ? self : this, function() {
return /******/ (function(modules) { // webpackBootstrap
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/******/ 	var installedModules = {};
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/******/ 	// The require function
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/* 0 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var ArrayProto = Array.prototype;
var ObjProto = Object.prototype;
var escapeMap = {
  '&': '&',
  '"': '"',
  '\'': ''',
  '<': '&lt;',
  '>': '&gt;'
};
var escapeRegex = /[&"'<>]/g;
var exports = module.exports = {};

function hasOwnProp(obj, k) {
  return ObjProto.hasOwnProperty.call(obj, k);
}

exports.hasOwnProp = hasOwnProp;

function lookupEscape(ch) {
  return escapeMap[ch];
}

function _prettifyError(path, withInternals, err) {
  if (!err.Update) {
    // not one of ours, cast it
    err = new exports.TemplateError(err);
  }

  err.Update(path); // Unless they marked the dev flag, show them a trace from here

  if (!withInternals) {
    var old = err;
    err = new Error(old.message);
    err.name = old.name;
  }

  return err;
}

exports._prettifyError = _prettifyError;

function TemplateError(message, lineno, colno) {
  var err;
  var cause;

  if (message instanceof Error) {
    cause = message;
    message = cause.name + ": " + cause.message;
  }

  if (Object.setPrototypeOf) {
    err = new Error(message);
    Object.setPrototypeOf(err, TemplateError.prototype);
  } else {
    err = this;
    Object.defineProperty(err, 'message', {
      enumerable: false,
      writable: true,
      value: message
    });
  }

  Object.defineProperty(err, 'name', {
    value: 'Template render error'
  });

  if (Error.captureStackTrace) {
    Error.captureStackTrace(err, this.constructor);
  }

  var getStack;

  if (cause) {
    var stackDescriptor = Object.getOwnPropertyDescriptor(cause, 'stack');

    getStack = stackDescriptor && (stackDescriptor.get || function () {
      return stackDescriptor.value;
    });

    if (!getStack) {
      getStack = function getStack() {
        return cause.stack;
      };
    }
  } else {
    var stack = new Error(message).stack;

    getStack = function getStack() {
      return stack;
    };
  }

  Object.defineProperty(err, 'stack', {
    get: function get() {
      return getStack.call(err);
    }
  });
  Object.defineProperty(err, 'cause', {
    value: cause
  });
  err.lineno = lineno;
  err.colno = colno;
  err.firstUpdate = true;

  err.Update = function Update(path) {
    var msg = '(' + (path || 'unknown path') + ')'; // only show lineno + colno next to path of template
    // where error occurred

    if (this.firstUpdate) {
      if (this.lineno && this.colno) {
        msg += " [Line " + this.lineno + ", Column " + this.colno + "]";
      } else if (this.lineno) {
        msg += " [Line " + this.lineno + "]";
      }
    }

    msg += '\n ';

    if (this.firstUpdate) {
      msg += ' ';
    }

    this.message = msg + (this.message || '');
    this.firstUpdate = false;
    return this;
  };

  return err;
}

if (Object.setPrototypeOf) {
  Object.setPrototypeOf(TemplateError.prototype, Error.prototype);
} else {
  TemplateError.prototype = Object.create(Error.prototype, {
    constructor: {
      value: TemplateError
    }
  });
}

exports.TemplateError = TemplateError;

function escape(val) {
  return val.replace(escapeRegex, lookupEscape);
}

exports.escape = escape;

function isFunction(obj) {
  return ObjProto.toString.call(obj) === '[object Function]';
}

exports.isFunction = isFunction;

function isArray(obj) {
  return ObjProto.toString.call(obj) === '[object Array]';
}

exports.isArray = isArray;

function isString(obj) {
  return ObjProto.toString.call(obj) === '[object String]';
}

exports.isString = isString;

function isObject(obj) {
  return ObjProto.toString.call(obj) === '[object Object]';
}

exports.isObject = isObject;
/**
 * @param {string|number} attr
 * @returns {(string|number)[]}
 * @private
 */

function _prepareAttributeParts(attr) {
  if (!attr) {
    return [];
  }

  if (typeof attr === 'string') {
    return attr.split('.');
  }

  return [attr];
}
/**
 * @param {string}   attribute      Attribute value. Dots allowed.
 * @returns {function(Object): *}
 */


function getAttrGetter(attribute) {
  var parts = _prepareAttributeParts(attribute);

  return function attrGetter(item) {
    var _item = item;

    for (var i = 0; i < parts.length; i++) {
      var part = parts[i]; // If item is not an object, and we still got parts to handle, it means
      // that something goes wrong. Just roll out to undefined in that case.

      if (hasOwnProp(_item, part)) {
        _item = _item[part];
      } else {
        return undefined;
      }
    }

    return _item;
  };
}

exports.getAttrGetter = getAttrGetter;

function groupBy(obj, val, throwOnUndefined) {
  var result = {};
  var iterator = isFunction(val) ? val : getAttrGetter(val);

  for (var i = 0; i < obj.length; i++) {
    var value = obj[i];
    var key = iterator(value, i);

    if (key === undefined && throwOnUndefined === true) {
      throw new TypeError("groupby: attribute \"" + val + "\" resolved to undefined");
    }

    (result[key] || (result[key] = [])).push(value);
  }

  return result;
}

exports.groupBy = groupBy;

function toArray(obj) {
  return Array.prototype.slice.call(obj);
}

exports.toArray = toArray;

function without(array) {
  var result = [];

  if (!array) {
    return result;
  }

  var length = array.length;
  var contains = toArray(arguments).slice(1);
  var index = -1;

  while (++index < length) {
    if (indexOf(contains, array[index]) === -1) {
      result.push(array[index]);
    }
  }

  return result;
}

exports.without = without;

function repeat(char_, n) {
  var str = '';

  for (var i = 0; i < n; i++) {
    str += char_;
  }

  return str;
}

exports.repeat = repeat;

function each(obj, func, context) {
  if (obj == null) {
    return;
  }

  if (ArrayProto.forEach && obj.forEach === ArrayProto.forEach) {
    obj.forEach(func, context);
  } else if (obj.length === +obj.length) {
    for (var i = 0, l = obj.length; i < l; i++) {
      func.call(context, obj[i], i, obj);
    }
  }
}

exports.each = each;

function map(obj, func) {
  var results = [];

  if (obj == null) {
    return results;
  }

  if (ArrayProto.map && obj.map === ArrayProto.map) {
    return obj.map(func);
  }

  for (var i = 0; i < obj.length; i++) {
    results[results.length] = func(obj[i], i);
  }

  if (obj.length === +obj.length) {
    results.length = obj.length;
  }

  return results;
}

exports.map = map;

function asyncIter(arr, iter, cb) {
  var i = -1;

  function next() {
    i++;

    if (i < arr.length) {
      iter(arr[i], i, next, cb);
    } else {
      cb();
    }
  }

  next();
}

exports.asyncIter = asyncIter;

function asyncFor(obj, iter, cb) {
  var keys = keys_(obj || {});
  var len = keys.length;
  var i = -1;

  function next() {
    i++;
    var k = keys[i];

    if (i < len) {
      iter(k, obj[k], i, len, next);
    } else {
      cb();
    }
  }

  next();
}

exports.asyncFor = asyncFor;

function indexOf(arr, searchElement, fromIndex) {
  return Array.prototype.indexOf.call(arr || [], searchElement, fromIndex);
}

exports.indexOf = indexOf;

function keys_(obj) {
  /* eslint-disable no-restricted-syntax */
  var arr = [];

  for (var k in obj) {
    if (hasOwnProp(obj, k)) {
      arr.push(k);
    }
  }

  return arr;
}

exports.keys = keys_;

function _entries(obj) {
  return keys_(obj).map(function (k) {
    return [k, obj[k]];
  });
}

exports._entries = _entries;

function _values(obj) {
  return keys_(obj).map(function (k) {
    return obj[k];
  });
}

exports._values = _values;

function extend(obj1, obj2) {
  obj1 = obj1 || {};
  keys_(obj2).forEach(function (k) {
    obj1[k] = obj2[k];
  });
  return obj1;
}

exports._assign = exports.extend = extend;

function inOperator(key, val) {
  if (isArray(val) || isString(val)) {
    return val.indexOf(key) !== -1;
  } else if (isObject(val)) {
    return key in val;
  }

  throw new Error('Cannot use "in" operator to search for "' + key + '" in unexpected types.');
}

exports.inOperator = inOperator;

/***/ }),
/* 1 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
 // A simple class system, more documentation to come

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

var EventEmitter = __webpack_require__(16);

var lib = __webpack_require__(0);

function parentWrap(parent, prop) {
  if (typeof parent !== 'function' || typeof prop !== 'function') {
    return prop;
  }

  return function wrap() {
    // Save the current parent method
    var tmp = this.parent; // Set parent to the previous method, call, and restore

    this.parent = parent;
    var res = prop.apply(this, arguments);
    this.parent = tmp;
    return res;
  };
}

function extendClass(cls, name, props) {
  props = props || {};
  lib.keys(props).forEach(function (k) {
    props[k] = parentWrap(cls.prototype[k], props[k]);
  });

  var subclass = /*#__PURE__*/function (_cls) {
    _inheritsLoose(subclass, _cls);

    function subclass() {
      return _cls.apply(this, arguments) || this;
    }

    _createClass(subclass, [{
      key: "typename",
      get: function get() {
        return name;
      }
    }]);

    return subclass;
  }(cls);

  lib._assign(subclass.prototype, props);

  return subclass;
}

var Obj = /*#__PURE__*/function () {
  function Obj() {
    // Unfortunately necessary for backwards compatibility
    this.init.apply(this, arguments);
  }

  var _proto = Obj.prototype;

  _proto.init = function init() {};

  Obj.extend = function extend(name, props) {
    if (typeof name === 'object') {
      props = name;
      name = 'anonymous';
    }

    return extendClass(this, name, props);
  };

  _createClass(Obj, [{
    key: "typename",
    get: function get() {
      return this.constructor.name;
    }
  }]);

  return Obj;
}();

var EmitterObj = /*#__PURE__*/function (_EventEmitter) {
  _inheritsLoose(EmitterObj, _EventEmitter);

  function EmitterObj() {
    var _this2;

    var _this;

    _this = _EventEmitter.call(this) || this; // Unfortunately necessary for backwards compatibility

    (_this2 = _this).init.apply(_this2, arguments);

    return _this;
  }

  var _proto2 = EmitterObj.prototype;

  _proto2.init = function init() {};

  EmitterObj.extend = function extend(name, props) {
    if (typeof name === 'object') {
      props = name;
      name = 'anonymous';
    }

    return extendClass(this, name, props);
  };

  _createClass(EmitterObj, [{
    key: "typename",
    get: function get() {
      return this.constructor.name;
    }
  }]);

  return EmitterObj;
}(EventEmitter);

module.exports = {
  Obj: Obj,
  EmitterObj: EmitterObj
};

/***/ }),
/* 2 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var lib = __webpack_require__(0);

var arrayFrom = Array.from;
var supportsIterators = typeof Symbol === 'function' && Symbol.iterator && typeof arrayFrom === 'function'; // Frames keep track of scoping both at compile-time and run-time so
// we know how to access variables. Block tags can introduce special
// variables, for example.

var Frame = /*#__PURE__*/function () {
  function Frame(parent, isolateWrites) {
    this.variables = Object.create(null);
    this.parent = parent;
    this.topLevel = false; // if this is true, writes (set) should never propagate upwards past
    // this frame to its parent (though reads may).

    this.isolateWrites = isolateWrites;
  }

  var _proto = Frame.prototype;

  _proto.set = function set(name, val, resolveUp) {
    // Allow variables with dots by automatically creating the
    // nested structure
    var parts = name.split('.');
    var obj = this.variables;
    var frame = this;

    if (resolveUp) {
      if (frame = this.resolve(parts[0], true)) {
        frame.set(name, val);
        return;
      }
    }

    for (var i = 0; i < parts.length - 1; i++) {
      var id = parts[i];

      if (!obj[id]) {
        obj[id] = {};
      }

      obj = obj[id];
    }

    obj[parts[parts.length - 1]] = val;
  };

  _proto.get = function get(name) {
    var val = this.variables[name];

    if (val !== undefined) {
      return val;
    }

    return null;
  };

  _proto.lookup = function lookup(name) {
    var p = this.parent;
    var val = this.variables[name];

    if (val !== undefined) {
      return val;
    }

    return p && p.lookup(name);
  };

  _proto.resolve = function resolve(name, forWrite) {
    var p = forWrite && this.isolateWrites ? undefined : this.parent;
    var val = this.variables[name];

    if (val !== undefined) {
      return this;
    }

    return p && p.resolve(name);
  };

  _proto.push = function push(isolateWrites) {
    return new Frame(this, isolateWrites);
  };

  _proto.pop = function pop() {
    return this.parent;
  };

  return Frame;
}();

function makeMacro(argNames, kwargNames, func) {
  return function macro() {
    for (var _len = arguments.length, macroArgs = new Array(_len), _key = 0; _key < _len; _key++) {
      macroArgs[_key] = arguments[_key];
    }

    var argCount = numArgs(macroArgs);
    var args;
    var kwargs = getKeywordArgs(macroArgs);

    if (argCount > argNames.length) {
      args = macroArgs.slice(0, argNames.length); // Positional arguments that should be passed in as
      // keyword arguments (essentially default values)

      macroArgs.slice(args.length, argCount).forEach(function (val, i) {
        if (i < kwargNames.length) {
          kwargs[kwargNames[i]] = val;
        }
      });
      args.push(kwargs);
    } else if (argCount < argNames.length) {
      args = macroArgs.slice(0, argCount);

      for (var i = argCount; i < argNames.length; i++) {
        var arg = argNames[i]; // Keyword arguments that should be passed as
        // positional arguments, i.e. the caller explicitly
        // used the name of a positional arg

        args.push(kwargs[arg]);
        delete kwargs[arg];
      }

      args.push(kwargs);
    } else {
      args = macroArgs;
    }

    return func.apply(this, args);
  };
}

function makeKeywordArgs(obj) {
  obj.__keywords = true;
  return obj;
}

function isKeywordArgs(obj) {
  return obj && Object.prototype.hasOwnProperty.call(obj, '__keywords');
}

function getKeywordArgs(args) {
  var len = args.length;

  if (len) {
    var lastArg = args[len - 1];

    if (isKeywordArgs(lastArg)) {
      return lastArg;
    }
  }

  return {};
}

function numArgs(args) {
  var len = args.length;

  if (len === 0) {
    return 0;
  }

  var lastArg = args[len - 1];

  if (isKeywordArgs(lastArg)) {
    return len - 1;
  } else {
    return len;
  }
} // A SafeString object indicates that the string should not be
// autoescaped. This happens magically because autoescaping only
// occurs on primitive string objects.


function SafeString(val) {
  if (typeof val !== 'string') {
    return val;
  }

  this.val = val;
  this.length = val.length;
}

SafeString.prototype = Object.create(String.prototype, {
  length: {
    writable: true,
    configurable: true,
    value: 0
  }
});

SafeString.prototype.valueOf = function valueOf() {
  return this.val;
};

SafeString.prototype.toString = function toString() {
  return this.val;
};

function copySafeness(dest, target) {
  if (dest instanceof SafeString) {
    return new SafeString(target);
  }

  return target.toString();
}

function markSafe(val) {
  var type = typeof val;

  if (type === 'string') {
    return new SafeString(val);
  } else if (type !== 'function') {
    return val;
  } else {
    return function wrapSafe(args) {
      var ret = val.apply(this, arguments);

      if (typeof ret === 'string') {
        return new SafeString(ret);
      }

      return ret;
    };
  }
}

function suppressValue(val, autoescape) {
  val = val !== undefined && val !== null ? val : '';

  if (autoescape && !(val instanceof SafeString)) {
    val = lib.escape(val.toString());
  }

  return val;
}

function ensureDefined(val, lineno, colno) {
  if (val === null || val === undefined) {
    throw new lib.TemplateError('attempted to output null or undefined value', lineno + 1, colno + 1);
  }

  return val;
}

function memberLookup(obj, val) {
  if (obj === undefined || obj === null) {
    return undefined;
  }

  if (typeof obj[val] === 'function') {
    return function () {
      for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
        args[_key2] = arguments[_key2];
      }

      return obj[val].apply(obj, args);
    };
  }

  return obj[val];
}

function callWrap(obj, name, context, args) {
  if (!obj) {
    throw new Error('Unable to call `' + name + '`, which is undefined or falsey');
  } else if (typeof obj !== 'function') {
    throw new Error('Unable to call `' + name + '`, which is not a function');
  }

  return obj.apply(context, args);
}

function contextOrFrameLookup(context, frame, name) {
  var val = frame.lookup(name);
  return val !== undefined ? val : context.lookup(name);
}

function handleError(error, lineno, colno) {
  if (error.lineno) {
    return error;
  } else {
    return new lib.TemplateError(error, lineno, colno);
  }
}

function asyncEach(arr, dimen, iter, cb) {
  if (lib.isArray(arr)) {
    var len = arr.length;
    lib.asyncIter(arr, function iterCallback(item, i, next) {
      switch (dimen) {
        case 1:
          iter(item, i, len, next);
          break;

        case 2:
          iter(item[0], item[1], i, len, next);
          break;

        case 3:
          iter(item[0], item[1], item[2], i, len, next);
          break;

        default:
          item.push(i, len, next);
          iter.apply(this, item);
      }
    }, cb);
  } else {
    lib.asyncFor(arr, function iterCallback(key, val, i, len, next) {
      iter(key, val, i, len, next);
    }, cb);
  }
}

function asyncAll(arr, dimen, func, cb) {
  var finished = 0;
  var len;
  var outputArr;

  function done(i, output) {
    finished++;
    outputArr[i] = output;

    if (finished === len) {
      cb(null, outputArr.join(''));
    }
  }

  if (lib.isArray(arr)) {
    len = arr.length;
    outputArr = new Array(len);

    if (len === 0) {
      cb(null, '');
    } else {
      for (var i = 0; i < arr.length; i++) {
        var item = arr[i];

        switch (dimen) {
          case 1:
            func(item, i, len, done);
            break;

          case 2:
            func(item[0], item[1], i, len, done);
            break;

          case 3:
            func(item[0], item[1], item[2], i, len, done);
            break;

          default:
            item.push(i, len, done);
            func.apply(this, item);
        }
      }
    }
  } else {
    var keys = lib.keys(arr || {});
    len = keys.length;
    outputArr = new Array(len);

    if (len === 0) {
      cb(null, '');
    } else {
      for (var _i = 0; _i < keys.length; _i++) {
        var k = keys[_i];
        func(k, arr[k], _i, len, done);
      }
    }
  }
}

function fromIterator(arr) {
  if (typeof arr !== 'object' || arr === null || lib.isArray(arr)) {
    return arr;
  } else if (supportsIterators && Symbol.iterator in arr) {
    return arrayFrom(arr);
  } else {
    return arr;
  }
}

module.exports = {
  Frame: Frame,
  makeMacro: makeMacro,
  makeKeywordArgs: makeKeywordArgs,
  numArgs: numArgs,
  suppressValue: suppressValue,
  ensureDefined: ensureDefined,
  memberLookup: memberLookup,
  contextOrFrameLookup: contextOrFrameLookup,
  callWrap: callWrap,
  handleError: handleError,
  isArray: lib.isArray,
  keys: lib.keys,
  SafeString: SafeString,
  copySafeness: copySafeness,
  markSafe: markSafe,
  asyncEach: asyncEach,
  asyncAll: asyncAll,
  inOperator: lib.inOperator,
  fromIterator: fromIterator
};

/***/ }),
/* 3 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

var _require = __webpack_require__(1),
    Obj = _require.Obj;

function traverseAndCheck(obj, type, results) {
  if (obj instanceof type) {
    results.push(obj);
  }

  if (obj instanceof Node) {
    obj.findAll(type, results);
  }
}

var Node = /*#__PURE__*/function (_Obj) {
  _inheritsLoose(Node, _Obj);

  function Node() {
    return _Obj.apply(this, arguments) || this;
  }

  var _proto = Node.prototype;

  _proto.init = function init(lineno, colno) {
    var _arguments = arguments,
        _this = this;

    for (var _len = arguments.length, args = new Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
      args[_key - 2] = arguments[_key];
    }

    this.lineno = lineno;
    this.colno = colno;
    this.fields.forEach(function (field, i) {
      // The first two args are line/col numbers, so offset by 2
      var val = _arguments[i + 2]; // Fields should never be undefined, but null. It makes
      // testing easier to normalize values.

      if (val === undefined) {
        val = null;
      }

      _this[field] = val;
    });
  };

  _proto.findAll = function findAll(type, results) {
    var _this2 = this;

    results = results || [];

    if (this instanceof NodeList) {
      this.children.forEach(function (child) {
        return traverseAndCheck(child, type, results);
      });
    } else {
      this.fields.forEach(function (field) {
        return traverseAndCheck(_this2[field], type, results);
      });
    }

    return results;
  };

  _proto.iterFields = function iterFields(func) {
    var _this3 = this;

    this.fields.forEach(function (field) {
      func(_this3[field], field);
    });
  };

  return Node;
}(Obj); // Abstract nodes


var Value = /*#__PURE__*/function (_Node) {
  _inheritsLoose(Value, _Node);

  function Value() {
    return _Node.apply(this, arguments) || this;
  }

  _createClass(Value, [{
    key: "typename",
    get: function get() {
      return 'Value';
    }
  }, {
    key: "fields",
    get: function get() {
      return ['value'];
    }
  }]);

  return Value;
}(Node); // Concrete nodes


var NodeList = /*#__PURE__*/function (_Node2) {
  _inheritsLoose(NodeList, _Node2);

  function NodeList() {
    return _Node2.apply(this, arguments) || this;
  }

  var _proto2 = NodeList.prototype;

  _proto2.init = function init(lineno, colno, nodes) {
    _Node2.prototype.init.call(this, lineno, colno, nodes || []);
  };

  _proto2.addChild = function addChild(node) {
    this.children.push(node);
  };

  _createClass(NodeList, [{
    key: "typename",
    get: function get() {
      return 'NodeList';
    }
  }, {
    key: "fields",
    get: function get() {
      return ['children'];
    }
  }]);

  return NodeList;
}(Node);

var Root = NodeList.extend('Root');
var Literal = Value.extend('Literal');
var Symbol = Value.extend('Symbol');
var Group = NodeList.extend('Group');
var ArrayNode = NodeList.extend('Array');
var Pair = Node.extend('Pair', {
  fields: ['key', 'value']
});
var Dict = NodeList.extend('Dict');
var LookupVal = Node.extend('LookupVal', {
  fields: ['target', 'val']
});
var If = Node.extend('If', {
  fields: ['cond', 'body', 'else_']
});
var IfAsync = If.extend('IfAsync');
var InlineIf = Node.extend('InlineIf', {
  fields: ['cond', 'body', 'else_']
});
var For = Node.extend('For', {
  fields: ['arr', 'name', 'body', 'else_']
});
var AsyncEach = For.extend('AsyncEach');
var AsyncAll = For.extend('AsyncAll');
var Macro = Node.extend('Macro', {
  fields: ['name', 'args', 'body']
});
var Caller = Macro.extend('Caller');
var Import = Node.extend('Import', {
  fields: ['template', 'target', 'withContext']
});

var FromImport = /*#__PURE__*/function (_Node3) {
  _inheritsLoose(FromImport, _Node3);

  function FromImport() {
    return _Node3.apply(this, arguments) || this;
  }

  var _proto3 = FromImport.prototype;

  _proto3.init = function init(lineno, colno, template, names, withContext) {
    _Node3.prototype.init.call(this, lineno, colno, template, names || new NodeList(), withContext);
  };

  _createClass(FromImport, [{
    key: "typename",
    get: function get() {
      return 'FromImport';
    }
  }, {
    key: "fields",
    get: function get() {
      return ['template', 'names', 'withContext'];
    }
  }]);

  return FromImport;
}(Node);

var FunCall = Node.extend('FunCall', {
  fields: ['name', 'args']
});
var Filter = FunCall.extend('Filter');
var FilterAsync = Filter.extend('FilterAsync', {
  fields: ['name', 'args', 'symbol']
});
var KeywordArgs = Dict.extend('KeywordArgs');
var Block = Node.extend('Block', {
  fields: ['name', 'body']
});
var Super = Node.extend('Super', {
  fields: ['blockName', 'symbol']
});
var TemplateRef = Node.extend('TemplateRef', {
  fields: ['template']
});
var Extends = TemplateRef.extend('Extends');
var Include = Node.extend('Include', {
  fields: ['template', 'ignoreMissing']
});
var Set = Node.extend('Set', {
  fields: ['targets', 'value']
});
var Switch = Node.extend('Switch', {
  fields: ['expr', 'cases', 'default']
});
var Case = Node.extend('Case', {
  fields: ['cond', 'body']
});
var Output = NodeList.extend('Output');
var Capture = Node.extend('Capture', {
  fields: ['body']
});
var TemplateData = Literal.extend('TemplateData');
var UnaryOp = Node.extend('UnaryOp', {
  fields: ['target']
});
var BinOp = Node.extend('BinOp', {
  fields: ['left', 'right']
});
var In = BinOp.extend('In');
var Is = BinOp.extend('Is');
var Or = BinOp.extend('Or');
var And = BinOp.extend('And');
var Not = UnaryOp.extend('Not');
var Add = BinOp.extend('Add');
var Concat = BinOp.extend('Concat');
var Sub = BinOp.extend('Sub');
var Mul = BinOp.extend('Mul');
var Div = BinOp.extend('Div');
var FloorDiv = BinOp.extend('FloorDiv');
var Mod = BinOp.extend('Mod');
var Pow = BinOp.extend('Pow');
var Neg = UnaryOp.extend('Neg');
var Pos = UnaryOp.extend('Pos');
var Compare = Node.extend('Compare', {
  fields: ['expr', 'ops']
});
var CompareOperand = Node.extend('CompareOperand', {
  fields: ['expr', 'type']
});
var CallExtension = Node.extend('CallExtension', {
  init: function init(ext, prop, args, contentArgs) {
    this.parent();
    this.extName = ext.__name || ext;
    this.prop = prop;
    this.args = args || new NodeList();
    this.contentArgs = contentArgs || [];
    this.autoescape = ext.autoescape;
  },
  fields: ['extName', 'prop', 'args', 'contentArgs']
});
var CallExtensionAsync = CallExtension.extend('CallExtensionAsync'); // This is hacky, but this is just a debugging function anyway

function print(str, indent, inline) {
  var lines = str.split('\n');
  lines.forEach(function (line, i) {
    if (line && (inline && i > 0 || !inline)) {
      process.stdout.write(' '.repeat(indent));
    }

    var nl = i === lines.length - 1 ? '' : '\n';
    process.stdout.write("" + line + nl);
  });
} // Print the AST in a nicely formatted tree format for debuggin


function printNodes(node, indent) {
  indent = indent || 0;
  print(node.typename + ': ', indent);

  if (node instanceof NodeList) {
    print('\n');
    node.children.forEach(function (n) {
      printNodes(n, indent + 2);
    });
  } else if (node instanceof CallExtension) {
    print(node.extName + "." + node.prop + "\n");

    if (node.args) {
      printNodes(node.args, indent + 2);
    }

    if (node.contentArgs) {
      node.contentArgs.forEach(function (n) {
        printNodes(n, indent + 2);
      });
    }
  } else {
    var nodes = [];
    var props = null;
    node.iterFields(function (val, fieldName) {
      if (val instanceof Node) {
        nodes.push([fieldName, val]);
      } else {
        props = props || {};
        props[fieldName] = val;
      }
    });

    if (props) {
      print(JSON.stringify(props, null, 2) + '\n', null, true);
    } else {
      print('\n');
    }

    nodes.forEach(function (_ref) {
      var fieldName = _ref[0],
          n = _ref[1];
      print("[" + fieldName + "] =>", indent + 2);
      printNodes(n, indent + 4);
    });
  }
}

module.exports = {
  Node: Node,
  Root: Root,
  NodeList: NodeList,
  Value: Value,
  Literal: Literal,
  Symbol: Symbol,
  Group: Group,
  Array: ArrayNode,
  Pair: Pair,
  Dict: Dict,
  Output: Output,
  Capture: Capture,
  TemplateData: TemplateData,
  If: If,
  IfAsync: IfAsync,
  InlineIf: InlineIf,
  For: For,
  AsyncEach: AsyncEach,
  AsyncAll: AsyncAll,
  Macro: Macro,
  Caller: Caller,
  Import: Import,
  FromImport: FromImport,
  FunCall: FunCall,
  Filter: Filter,
  FilterAsync: FilterAsync,
  KeywordArgs: KeywordArgs,
  Block: Block,
  Super: Super,
  Extends: Extends,
  Include: Include,
  Set: Set,
  Switch: Switch,
  Case: Case,
  LookupVal: LookupVal,
  BinOp: BinOp,
  In: In,
  Is: Is,
  Or: Or,
  And: And,
  Not: Not,
  Add: Add,
  Concat: Concat,
  Sub: Sub,
  Mul: Mul,
  Div: Div,
  FloorDiv: FloorDiv,
  Mod: Mod,
  Pow: Pow,
  Neg: Neg,
  Pos: Pos,
  Compare: Compare,
  CompareOperand: CompareOperand,
  CallExtension: CallExtension,
  CallExtensionAsync: CallExtensionAsync,
  printNodes: printNodes
};

/***/ }),
/* 4 */
/***/ (function(module, exports) {



/***/ }),
/* 5 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

var parser = __webpack_require__(8);

var transformer = __webpack_require__(17);

var nodes = __webpack_require__(3);

var _require = __webpack_require__(0),
    TemplateError = _require.TemplateError;

var _require2 = __webpack_require__(2),
    Frame = _require2.Frame;

var _require3 = __webpack_require__(1),
    Obj = _require3.Obj; // These are all the same for now, but shouldn't be passed straight
// through


var compareOps = {
  '==': '==',
  '===': '===',
  '!=': '!=',
  '!==': '!==',
  '<': '<',
  '>': '>',
  '<=': '<=',
  '>=': '>='
};

var Compiler = /*#__PURE__*/function (_Obj) {
  _inheritsLoose(Compiler, _Obj);

  function Compiler() {
    return _Obj.apply(this, arguments) || this;
  }

  var _proto = Compiler.prototype;

  _proto.init = function init(templateName, throwOnUndefined) {
    this.templateName = templateName;
    this.codebuf = [];
    this.lastId = 0;
    this.buffer = null;
    this.bufferStack = [];
    this._scopeClosers = '';
    this.inBlock = false;
    this.throwOnUndefined = throwOnUndefined;
  };

  _proto.fail = function fail(msg, lineno, colno) {
    if (lineno !== undefined) {
      lineno += 1;
    }

    if (colno !== undefined) {
      colno += 1;
    }

    throw new TemplateError(msg, lineno, colno);
  };

  _proto._pushBuffer = function _pushBuffer() {
    var id = this._tmpid();

    this.bufferStack.push(this.buffer);
    this.buffer = id;

    this._emit("var " + this.buffer + " = \"\";");

    return id;
  };

  _proto._popBuffer = function _popBuffer() {
    this.buffer = this.bufferStack.pop();
  };

  _proto._emit = function _emit(code) {
    this.codebuf.push(code);
  };

  _proto._emitLine = function _emitLine(code) {
    this._emit(code + '\n');
  };

  _proto._emitLines = function _emitLines() {
    var _this = this;

    for (var _len = arguments.length, lines = new Array(_len), _key = 0; _key < _len; _key++) {
      lines[_key] = arguments[_key];
    }

    lines.forEach(function (line) {
      return _this._emitLine(line);
    });
  };

  _proto._emitFuncBegin = function _emitFuncBegin(node, name) {
    this.buffer = 'output';
    this._scopeClosers = '';

    this._emitLine("function " + name + "(env, context, frame, runtime, cb) {");

    this._emitLine("var lineno = " + node.lineno + ";");

    this._emitLine("var colno = " + node.colno + ";");

    this._emitLine("var " + this.buffer + " = \"\";");

    this._emitLine('try {');
  };

  _proto._emitFuncEnd = function _emitFuncEnd(noReturn) {
    if (!noReturn) {
      this._emitLine('cb(null, ' + this.buffer + ');');
    }

    this._closeScopeLevels();

    this._emitLine('} catch (e) {');

    this._emitLine('  cb(runtime.handleError(e, lineno, colno));');

    this._emitLine('}');

    this._emitLine('}');

    this.buffer = null;
  };

  _proto._addScopeLevel = function _addScopeLevel() {
    this._scopeClosers += '})';
  };

  _proto._closeScopeLevels = function _closeScopeLevels() {
    this._emitLine(this._scopeClosers + ';');

    this._scopeClosers = '';
  };

  _proto._withScopedSyntax = function _withScopedSyntax(func) {
    var _scopeClosers = this._scopeClosers;
    this._scopeClosers = '';
    func.call(this);

    this._closeScopeLevels();

    this._scopeClosers = _scopeClosers;
  };

  _proto._makeCallback = function _makeCallback(res) {
    var err = this._tmpid();

    return 'function(' + err + (res ? ',' + res : '') + ') {\n' + 'if(' + err + ') { cb(' + err + '); return; }';
  };

  _proto._tmpid = function _tmpid() {
    this.lastId++;
    return 't_' + this.lastId;
  };

  _proto._templateName = function _templateName() {
    return this.templateName == null ? 'undefined' : JSON.stringify(this.templateName);
  };

  _proto._compileChildren = function _compileChildren(node, frame) {
    var _this2 = this;

    node.children.forEach(function (child) {
      _this2.compile(child, frame);
    });
  };

  _proto._compileAggregate = function _compileAggregate(node, frame, startChar, endChar) {
    var _this3 = this;

    if (startChar) {
      this._emit(startChar);
    }

    node.children.forEach(function (child, i) {
      if (i > 0) {
        _this3._emit(',');
      }

      _this3.compile(child, frame);
    });

    if (endChar) {
      this._emit(endChar);
    }
  };

  _proto._compileExpression = function _compileExpression(node, frame) {
    // TODO: I'm not really sure if this type check is worth it or
    // not.
    this.assertType(node, nodes.Literal, nodes.Symbol, nodes.Group, nodes.Array, nodes.Dict, nodes.FunCall, nodes.Caller, nodes.Filter, nodes.LookupVal, nodes.Compare, nodes.InlineIf, nodes.In, nodes.Is, nodes.And, nodes.Or, nodes.Not, nodes.Add, nodes.Concat, nodes.Sub, nodes.Mul, nodes.Div, nodes.FloorDiv, nodes.Mod, nodes.Pow, nodes.Neg, nodes.Pos, nodes.Compare, nodes.NodeList);
    this.compile(node, frame);
  };

  _proto.assertType = function assertType(node) {
    for (var _len2 = arguments.length, types = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
      types[_key2 - 1] = arguments[_key2];
    }

    if (!types.some(function (t) {
      return node instanceof t;
    })) {
      this.fail("assertType: invalid type: " + node.typename, node.lineno, node.colno);
    }
  };

  _proto.compileCallExtension = function compileCallExtension(node, frame, async) {
    var _this4 = this;

    var args = node.args;
    var contentArgs = node.contentArgs;
    var autoescape = typeof node.autoescape === 'boolean' ? node.autoescape : true;

    if (!async) {
      this._emit(this.buffer + " += runtime.suppressValue(");
    }

    this._emit("env.getExtension(\"" + node.extName + "\")[\"" + node.prop + "\"](");

    this._emit('context');

    if (args || contentArgs) {
      this._emit(',');
    }

    if (args) {
      if (!(args instanceof nodes.NodeList)) {
        this.fail('compileCallExtension: arguments must be a NodeList, ' + 'use `parser.parseSignature`');
      }

      args.children.forEach(function (arg, i) {
        // Tag arguments are passed normally to the call. Note
        // that keyword arguments are turned into a single js
        // object as the last argument, if they exist.
        _this4._compileExpression(arg, frame);

        if (i !== args.children.length - 1 || contentArgs.length) {
          _this4._emit(',');
        }
      });
    }

    if (contentArgs.length) {
      contentArgs.forEach(function (arg, i) {
        if (i > 0) {
          _this4._emit(',');
        }

        if (arg) {
          _this4._emitLine('function(cb) {');

          _this4._emitLine('if(!cb) { cb = function(err) { if(err) { throw err; }}}');

          var id = _this4._pushBuffer();

          _this4._withScopedSyntax(function () {
            _this4.compile(arg, frame);

            _this4._emitLine("cb(null, " + id + ");");
          });

          _this4._popBuffer();

          _this4._emitLine("return " + id + ";");

          _this4._emitLine('}');
        } else {
          _this4._emit('null');
        }
      });
    }

    if (async) {
      var res = this._tmpid();

      this._emitLine(', ' + this._makeCallback(res));

      this._emitLine(this.buffer + " += runtime.suppressValue(" + res + ", " + autoescape + " && env.opts.autoescape);");

      this._addScopeLevel();
    } else {
      this._emit(')');

      this._emit(", " + autoescape + " && env.opts.autoescape);\n");
    }
  };

  _proto.compileCallExtensionAsync = function compileCallExtensionAsync(node, frame) {
    this.compileCallExtension(node, frame, true);
  };

  _proto.compileNodeList = function compileNodeList(node, frame) {
    this._compileChildren(node, frame);
  };

  _proto.compileLiteral = function compileLiteral(node) {
    if (typeof node.value === 'string') {
      var val = node.value.replace(/\\/g, '\\\\');
      val = val.replace(/"/g, '\\"');
      val = val.replace(/\n/g, '\\n');
      val = val.replace(/\r/g, '\\r');
      val = val.replace(/\t/g, '\\t');
      val = val.replace(/\u2028/g, "\\u2028");

      this._emit("\"" + val + "\"");
    } else if (node.value === null) {
      this._emit('null');
    } else {
      this._emit(node.value.toString());
    }
  };

  _proto.compileSymbol = function compileSymbol(node, frame) {
    var name = node.value;
    var v = frame.lookup(name);

    if (v) {
      this._emit(v);
    } else {
      this._emit('runtime.contextOrFrameLookup(' + 'context, frame, "' + name + '")');
    }
  };

  _proto.compileGroup = function compileGroup(node, frame) {
    this._compileAggregate(node, frame, '(', ')');
  };

  _proto.compileArray = function compileArray(node, frame) {
    this._compileAggregate(node, frame, '[', ']');
  };

  _proto.compileDict = function compileDict(node, frame) {
    this._compileAggregate(node, frame, '{', '}');
  };

  _proto.compilePair = function compilePair(node, frame) {
    var key = node.key;
    var val = node.value;

    if (key instanceof nodes.Symbol) {
      key = new nodes.Literal(key.lineno, key.colno, key.value);
    } else if (!(key instanceof nodes.Literal && typeof key.value === 'string')) {
      this.fail('compilePair: Dict keys must be strings or names', key.lineno, key.colno);
    }

    this.compile(key, frame);

    this._emit(': ');

    this._compileExpression(val, frame);
  };

  _proto.compileInlineIf = function compileInlineIf(node, frame) {
    this._emit('(');

    this.compile(node.cond, frame);

    this._emit('?');

    this.compile(node.body, frame);

    this._emit(':');

    if (node.else_ !== null) {
      this.compile(node.else_, frame);
    } else {
      this._emit('""');
    }

    this._emit(')');
  };

  _proto.compileIn = function compileIn(node, frame) {
    this._emit('runtime.inOperator(');

    this.compile(node.left, frame);

    this._emit(',');

    this.compile(node.right, frame);

    this._emit(')');
  };

  _proto.compileIs = function compileIs(node, frame) {
    // first, we need to try to get the name of the test function, if it's a
    // callable (i.e., has args) and not a symbol.
    var right = node.right.name ? node.right.name.value // otherwise go with the symbol value
    : node.right.value;

    this._emit('env.getTest("' + right + '").call(context, ');

    this.compile(node.left, frame); // compile the arguments for the callable if they exist

    if (node.right.args) {
      this._emit(',');

      this.compile(node.right.args, frame);
    }

    this._emit(') === true');
  };

  _proto._binOpEmitter = function _binOpEmitter(node, frame, str) {
    this.compile(node.left, frame);

    this._emit(str);

    this.compile(node.right, frame);
  } // ensure concatenation instead of addition
  // by adding empty string in between
  ;

  _proto.compileOr = function compileOr(node, frame) {
    return this._binOpEmitter(node, frame, ' || ');
  };

  _proto.compileAnd = function compileAnd(node, frame) {
    return this._binOpEmitter(node, frame, ' && ');
  };

  _proto.compileAdd = function compileAdd(node, frame) {
    return this._binOpEmitter(node, frame, ' + ');
  };

  _proto.compileConcat = function compileConcat(node, frame) {
    return this._binOpEmitter(node, frame, ' + "" + ');
  };

  _proto.compileSub = function compileSub(node, frame) {
    return this._binOpEmitter(node, frame, ' - ');
  };

  _proto.compileMul = function compileMul(node, frame) {
    return this._binOpEmitter(node, frame, ' * ');
  };

  _proto.compileDiv = function compileDiv(node, frame) {
    return this._binOpEmitter(node, frame, ' / ');
  };

  _proto.compileMod = function compileMod(node, frame) {
    return this._binOpEmitter(node, frame, ' % ');
  };

  _proto.compileNot = function compileNot(node, frame) {
    this._emit('!');

    this.compile(node.target, frame);
  };

  _proto.compileFloorDiv = function compileFloorDiv(node, frame) {
    this._emit('Math.floor(');

    this.compile(node.left, frame);

    this._emit(' / ');

    this.compile(node.right, frame);

    this._emit(')');
  };

  _proto.compilePow = function compilePow(node, frame) {
    this._emit('Math.pow(');

    this.compile(node.left, frame);

    this._emit(', ');

    this.compile(node.right, frame);

    this._emit(')');
  };

  _proto.compileNeg = function compileNeg(node, frame) {
    this._emit('-');

    this.compile(node.target, frame);
  };

  _proto.compilePos = function compilePos(node, frame) {
    this._emit('+');

    this.compile(node.target, frame);
  };

  _proto.compileCompare = function compileCompare(node, frame) {
    var _this5 = this;

    this.compile(node.expr, frame);
    node.ops.forEach(function (op) {
      _this5._emit(" " + compareOps[op.type] + " ");

      _this5.compile(op.expr, frame);
    });
  };

  _proto.compileLookupVal = function compileLookupVal(node, frame) {
    this._emit('runtime.memberLookup((');

    this._compileExpression(node.target, frame);

    this._emit('),');

    this._compileExpression(node.val, frame);

    this._emit(')');
  };

  _proto._getNodeName = function _getNodeName(node) {
    switch (node.typename) {
      case 'Symbol':
        return node.value;

      case 'FunCall':
        return 'the return value of (' + this._getNodeName(node.name) + ')';

      case 'LookupVal':
        return this._getNodeName(node.target) + '["' + this._getNodeName(node.val) + '"]';

      case 'Literal':
        return node.value.toString();

      default:
        return '--expression--';
    }
  };

  _proto.compileFunCall = function compileFunCall(node, frame) {
    // Keep track of line/col info at runtime by settings
    // variables within an expression. An expression in javascript
    // like (x, y, z) returns the last value, and x and y can be
    // anything
    this._emit('(lineno = ' + node.lineno + ', colno = ' + node.colno + ', ');

    this._emit('runtime.callWrap('); // Compile it as normal.


    this._compileExpression(node.name, frame); // Output the name of what we're calling so we can get friendly errors
    // if the lookup fails.


    this._emit(', "' + this._getNodeName(node.name).replace(/"/g, '\\"') + '", context, ');

    this._compileAggregate(node.args, frame, '[', '])');

    this._emit(')');
  };

  _proto.compileFilter = function compileFilter(node, frame) {
    var name = node.name;
    this.assertType(name, nodes.Symbol);

    this._emit('env.getFilter("' + name.value + '").call(context, ');

    this._compileAggregate(node.args, frame);

    this._emit(')');
  };

  _proto.compileFilterAsync = function compileFilterAsync(node, frame) {
    var name = node.name;
    var symbol = node.symbol.value;
    this.assertType(name, nodes.Symbol);
    frame.set(symbol, symbol);

    this._emit('env.getFilter("' + name.value + '").call(context, ');

    this._compileAggregate(node.args, frame);

    this._emitLine(', ' + this._makeCallback(symbol));

    this._addScopeLevel();
  };

  _proto.compileKeywordArgs = function compileKeywordArgs(node, frame) {
    this._emit('runtime.makeKeywordArgs(');

    this.compileDict(node, frame);

    this._emit(')');
  };

  _proto.compileSet = function compileSet(node, frame) {
    var _this6 = this;

    var ids = []; // Lookup the variable names for each identifier and create
    // new ones if necessary

    node.targets.forEach(function (target) {
      var name = target.value;
      var id = frame.lookup(name);

      if (id === null || id === undefined) {
        id = _this6._tmpid(); // Note: This relies on js allowing scope across
        // blocks, in case this is created inside an `if`

        _this6._emitLine('var ' + id + ';');
      }

      ids.push(id);
    });

    if (node.value) {
      this._emit(ids.join(' = ') + ' = ');

      this._compileExpression(node.value, frame);

      this._emitLine(';');
    } else {
      this._emit(ids.join(' = ') + ' = ');

      this.compile(node.body, frame);

      this._emitLine(';');
    }

    node.targets.forEach(function (target, i) {
      var id = ids[i];
      var name = target.value; // We are running this for every var, but it's very
      // uncommon to assign to multiple vars anyway

      _this6._emitLine("frame.set(\"" + name + "\", " + id + ", true);");

      _this6._emitLine('if(frame.topLevel) {');

      _this6._emitLine("context.setVariable(\"" + name + "\", " + id + ");");

      _this6._emitLine('}');

      if (name.charAt(0) !== '_') {
        _this6._emitLine('if(frame.topLevel) {');

        _this6._emitLine("context.addExport(\"" + name + "\", " + id + ");");

        _this6._emitLine('}');
      }
    });
  };

  _proto.compileSwitch = function compileSwitch(node, frame) {
    var _this7 = this;

    this._emit('switch (');

    this.compile(node.expr, frame);

    this._emit(') {');

    node.cases.forEach(function (c, i) {
      _this7._emit('case ');

      _this7.compile(c.cond, frame);

      _this7._emit(': ');

      _this7.compile(c.body, frame); // preserve fall-throughs


      if (c.body.children.length) {
        _this7._emitLine('break;');
      }
    });

    if (node.default) {
      this._emit('default:');

      this.compile(node.default, frame);
    }

    this._emit('}');
  };

  _proto.compileIf = function compileIf(node, frame, async) {
    var _this8 = this;

    this._emit('if(');

    this._compileExpression(node.cond, frame);

    this._emitLine(') {');

    this._withScopedSyntax(function () {
      _this8.compile(node.body, frame);

      if (async) {
        _this8._emit('cb()');
      }
    });

    if (node.else_) {
      this._emitLine('}\nelse {');

      this._withScopedSyntax(function () {
        _this8.compile(node.else_, frame);

        if (async) {
          _this8._emit('cb()');
        }
      });
    } else if (async) {
      this._emitLine('}\nelse {');

      this._emit('cb()');
    }

    this._emitLine('}');
  };

  _proto.compileIfAsync = function compileIfAsync(node, frame) {
    this._emit('(function(cb) {');

    this.compileIf(node, frame, true);

    this._emit('})(' + this._makeCallback());

    this._addScopeLevel();
  };

  _proto._emitLoopBindings = function _emitLoopBindings(node, arr, i, len) {
    var _this9 = this;

    var bindings = [{
      name: 'index',
      val: i + " + 1"
    }, {
      name: 'index0',
      val: i
    }, {
      name: 'revindex',
      val: len + " - " + i
    }, {
      name: 'revindex0',
      val: len + " - " + i + " - 1"
    }, {
      name: 'first',
      val: i + " === 0"
    }, {
      name: 'last',
      val: i + " === " + len + " - 1"
    }, {
      name: 'length',
      val: len
    }];
    bindings.forEach(function (b) {
      _this9._emitLine("frame.set(\"loop." + b.name + "\", " + b.val + ");");
    });
  };

  _proto.compileFor = function compileFor(node, frame) {
    var _this10 = this;

    // Some of this code is ugly, but it keeps the generated code
    // as fast as possible. ForAsync also shares some of this, but
    // not much.
    var i = this._tmpid();

    var len = this._tmpid();

    var arr = this._tmpid();

    frame = frame.push();

    this._emitLine('frame = frame.push();');

    this._emit("var " + arr + " = ");

    this._compileExpression(node.arr, frame);

    this._emitLine(';');

    this._emit("if(" + arr + ") {");

    this._emitLine(arr + ' = runtime.fromIterator(' + arr + ');'); // If multiple names are passed, we need to bind them
    // appropriately


    if (node.name instanceof nodes.Array) {
      this._emitLine("var " + i + ";"); // The object could be an arroy or object. Note that the
      // body of the loop is duplicated for each condition, but
      // we are optimizing for speed over size.


      this._emitLine("if(runtime.isArray(" + arr + ")) {");

      this._emitLine("var " + len + " = " + arr + ".length;");

      this._emitLine("for(" + i + "=0; " + i + " < " + arr + ".length; " + i + "++) {"); // Bind each declared var


      node.name.children.forEach(function (child, u) {
        var tid = _this10._tmpid();

        _this10._emitLine("var " + tid + " = " + arr + "[" + i + "][" + u + "];");

        _this10._emitLine("frame.set(\"" + child + "\", " + arr + "[" + i + "][" + u + "]);");

        frame.set(node.name.children[u].value, tid);
      });

      this._emitLoopBindings(node, arr, i, len);

      this._withScopedSyntax(function () {
        _this10.compile(node.body, frame);
      });

      this._emitLine('}');

      this._emitLine('} else {'); // Iterate over the key/values of an object


      var _node$name$children = node.name.children,
          key = _node$name$children[0],
          val = _node$name$children[1];

      var k = this._tmpid();

      var v = this._tmpid();

      frame.set(key.value, k);
      frame.set(val.value, v);

      this._emitLine(i + " = -1;");

      this._emitLine("var " + len + " = runtime.keys(" + arr + ").length;");

      this._emitLine("for(var " + k + " in " + arr + ") {");

      this._emitLine(i + "++;");

      this._emitLine("var " + v + " = " + arr + "[" + k + "];");

      this._emitLine("frame.set(\"" + key.value + "\", " + k + ");");

      this._emitLine("frame.set(\"" + val.value + "\", " + v + ");");

      this._emitLoopBindings(node, arr, i, len);

      this._withScopedSyntax(function () {
        _this10.compile(node.body, frame);
      });

      this._emitLine('}');

      this._emitLine('}');
    } else {
      // Generate a typical array iteration
      var _v = this._tmpid();

      frame.set(node.name.value, _v);

      this._emitLine("var " + len + " = " + arr + ".length;");

      this._emitLine("for(var " + i + "=0; " + i + " < " + arr + ".length; " + i + "++) {");

      this._emitLine("var " + _v + " = " + arr + "[" + i + "];");

      this._emitLine("frame.set(\"" + node.name.value + "\", " + _v + ");");

      this._emitLoopBindings(node, arr, i, len);

      this._withScopedSyntax(function () {
        _this10.compile(node.body, frame);
      });

      this._emitLine('}');
    }

    this._emitLine('}');

    if (node.else_) {
      this._emitLine('if (!' + len + ') {');

      this.compile(node.else_, frame);

      this._emitLine('}');
    }

    this._emitLine('frame = frame.pop();');
  };

  _proto._compileAsyncLoop = function _compileAsyncLoop(node, frame, parallel) {
    var _this11 = this;

    // This shares some code with the For tag, but not enough to
    // worry about. This iterates across an object asynchronously,
    // but not in parallel.
    var i = this._tmpid();

    var len = this._tmpid();

    var arr = this._tmpid();

    var asyncMethod = parallel ? 'asyncAll' : 'asyncEach';
    frame = frame.push();

    this._emitLine('frame = frame.push();');

    this._emit('var ' + arr + ' = runtime.fromIterator(');

    this._compileExpression(node.arr, frame);

    this._emitLine(');');

    if (node.name instanceof nodes.Array) {
      var arrayLen = node.name.children.length;

      this._emit("runtime." + asyncMethod + "(" + arr + ", " + arrayLen + ", function(");

      node.name.children.forEach(function (name) {
        _this11._emit(name.value + ",");
      });

      this._emit(i + ',' + len + ',next) {');

      node.name.children.forEach(function (name) {
        var id = name.value;
        frame.set(id, id);

        _this11._emitLine("frame.set(\"" + id + "\", " + id + ");");
      });
    } else {
      var id = node.name.value;

      this._emitLine("runtime." + asyncMethod + "(" + arr + ", 1, function(" + id + ", " + i + ", " + len + ",next) {");

      this._emitLine('frame.set("' + id + '", ' + id + ');');

      frame.set(id, id);
    }

    this._emitLoopBindings(node, arr, i, len);

    this._withScopedSyntax(function () {
      var buf;

      if (parallel) {
        buf = _this11._pushBuffer();
      }

      _this11.compile(node.body, frame);

      _this11._emitLine('next(' + i + (buf ? ',' + buf : '') + ');');

      if (parallel) {
        _this11._popBuffer();
      }
    });

    var output = this._tmpid();

    this._emitLine('}, ' + this._makeCallback(output));

    this._addScopeLevel();

    if (parallel) {
      this._emitLine(this.buffer + ' += ' + output + ';');
    }

    if (node.else_) {
      this._emitLine('if (!' + arr + '.length) {');

      this.compile(node.else_, frame);

      this._emitLine('}');
    }

    this._emitLine('frame = frame.pop();');
  };

  _proto.compileAsyncEach = function compileAsyncEach(node, frame) {
    this._compileAsyncLoop(node, frame);
  };

  _proto.compileAsyncAll = function compileAsyncAll(node, frame) {
    this._compileAsyncLoop(node, frame, true);
  };

  _proto._compileMacro = function _compileMacro(node, frame) {
    var _this12 = this;

    var args = [];
    var kwargs = null;

    var funcId = 'macro_' + this._tmpid();

    var keepFrame = frame !== undefined; // Type check the definition of the args

    node.args.children.forEach(function (arg, i) {
      if (i === node.args.children.length - 1 && arg instanceof nodes.Dict) {
        kwargs = arg;
      } else {
        _this12.assertType(arg, nodes.Symbol);

        args.push(arg);
      }
    });
    var realNames = [].concat(args.map(function (n) {
      return "l_" + n.value;
    }), ['kwargs']); // Quoted argument names

    var argNames = args.map(function (n) {
      return "\"" + n.value + "\"";
    });
    var kwargNames = (kwargs && kwargs.children || []).map(function (n) {
      return "\"" + n.key.value + "\"";
    }); // We pass a function to makeMacro which destructures the
    // arguments so support setting positional args with keywords
    // args and passing keyword args as positional args
    // (essentially default values). See runtime.js.

    var currFrame;

    if (keepFrame) {
      currFrame = frame.push(true);
    } else {
      currFrame = new Frame();
    }

    this._emitLines("var " + funcId + " = runtime.makeMacro(", "[" + argNames.join(', ') + "], ", "[" + kwargNames.join(', ') + "], ", "function (" + realNames.join(', ') + ") {", 'var callerFrame = frame;', 'frame = ' + (keepFrame ? 'frame.push(true);' : 'new runtime.Frame();'), 'kwargs = kwargs || {};', 'if (Object.prototype.hasOwnProperty.call(kwargs, "caller")) {', 'frame.set("caller", kwargs.caller); }'); // Expose the arguments to the template. Don't need to use
    // random names because the function
    // will create a new run-time scope for us


    args.forEach(function (arg) {
      _this12._emitLine("frame.set(\"" + arg.value + "\", l_" + arg.value + ");");

      currFrame.set(arg.value, "l_" + arg.value);
    }); // Expose the keyword arguments

    if (kwargs) {
      kwargs.children.forEach(function (pair) {
        var name = pair.key.value;

        _this12._emit("frame.set(\"" + name + "\", ");

        _this12._emit("Object.prototype.hasOwnProperty.call(kwargs, \"" + name + "\")");

        _this12._emit(" ? kwargs[\"" + name + "\"] : ");

        _this12._compileExpression(pair.value, currFrame);

        _this12._emit(');');
      });
    }

    var bufferId = this._pushBuffer();

    this._withScopedSyntax(function () {
      _this12.compile(node.body, currFrame);
    });

    this._emitLine('frame = ' + (keepFrame ? 'frame.pop();' : 'callerFrame;'));

    this._emitLine("return new runtime.SafeString(" + bufferId + ");");

    this._emitLine('});');

    this._popBuffer();

    return funcId;
  };

  _proto.compileMacro = function compileMacro(node, frame) {
    var funcId = this._compileMacro(node); // Expose the macro to the templates


    var name = node.name.value;
    frame.set(name, funcId);

    if (frame.parent) {
      this._emitLine("frame.set(\"" + name + "\", " + funcId + ");");
    } else {
      if (node.name.value.charAt(0) !== '_') {
        this._emitLine("context.addExport(\"" + name + "\");");
      }

      this._emitLine("context.setVariable(\"" + name + "\", " + funcId + ");");
    }
  };

  _proto.compileCaller = function compileCaller(node, frame) {
    // basically an anonymous "macro expression"
    this._emit('(function (){');

    var funcId = this._compileMacro(node, frame);

    this._emit("return " + funcId + ";})()");
  };

  _proto._compileGetTemplate = function _compileGetTemplate(node, frame, eagerCompile, ignoreMissing) {
    var parentTemplateId = this._tmpid();

    var parentName = this._templateName();

    var cb = this._makeCallback(parentTemplateId);

    var eagerCompileArg = eagerCompile ? 'true' : 'false';
    var ignoreMissingArg = ignoreMissing ? 'true' : 'false';

    this._emit('env.getTemplate(');

    this._compileExpression(node.template, frame);

    this._emitLine(", " + eagerCompileArg + ", " + parentName + ", " + ignoreMissingArg + ", " + cb);

    return parentTemplateId;
  };

  _proto.compileImport = function compileImport(node, frame) {
    var target = node.target.value;

    var id = this._compileGetTemplate(node, frame, false, false);

    this._addScopeLevel();

    this._emitLine(id + '.getExported(' + (node.withContext ? 'context.getVariables(), frame, ' : '') + this._makeCallback(id));

    this._addScopeLevel();

    frame.set(target, id);

    if (frame.parent) {
      this._emitLine("frame.set(\"" + target + "\", " + id + ");");
    } else {
      this._emitLine("context.setVariable(\"" + target + "\", " + id + ");");
    }
  };

  _proto.compileFromImport = function compileFromImport(node, frame) {
    var _this13 = this;

    var importedId = this._compileGetTemplate(node, frame, false, false);

    this._addScopeLevel();

    this._emitLine(importedId + '.getExported(' + (node.withContext ? 'context.getVariables(), frame, ' : '') + this._makeCallback(importedId));

    this._addScopeLevel();

    node.names.children.forEach(function (nameNode) {
      var name;
      var alias;

      var id = _this13._tmpid();

      if (nameNode instanceof nodes.Pair) {
        name = nameNode.key.value;
        alias = nameNode.value.value;
      } else {
        name = nameNode.value;
        alias = name;
      }

      _this13._emitLine("if(Object.prototype.hasOwnProperty.call(" + importedId + ", \"" + name + "\")) {");

      _this13._emitLine("var " + id + " = " + importedId + "." + name + ";");

      _this13._emitLine('} else {');

      _this13._emitLine("cb(new Error(\"cannot import '" + name + "'\")); return;");

      _this13._emitLine('}');

      frame.set(alias, id);

      if (frame.parent) {
        _this13._emitLine("frame.set(\"" + alias + "\", " + id + ");");
      } else {
        _this13._emitLine("context.setVariable(\"" + alias + "\", " + id + ");");
      }
    });
  };

  _proto.compileBlock = function compileBlock(node) {
    var id = this._tmpid(); // If we are executing outside a block (creating a top-level
    // block), we really don't want to execute its code because it
    // will execute twice: once when the child template runs and
    // again when the parent template runs. Note that blocks
    // within blocks will *always* execute immediately *and*
    // wherever else they are invoked (like used in a parent
    // template). This may have behavioral differences from jinja
    // because blocks can have side effects, but it seems like a
    // waste of performance to always execute huge top-level
    // blocks twice


    if (!this.inBlock) {
      this._emit('(parentTemplate ? function(e, c, f, r, cb) { cb(""); } : ');
    }

    this._emit("context.getBlock(\"" + node.name.value + "\")");

    if (!this.inBlock) {
      this._emit(')');
    }

    this._emitLine('(env, context, frame, runtime, ' + this._makeCallback(id));

    this._emitLine(this.buffer + " += " + id + ";");

    this._addScopeLevel();
  };

  _proto.compileSuper = function compileSuper(node, frame) {
    var name = node.blockName.value;
    var id = node.symbol.value;

    var cb = this._makeCallback(id);

    this._emitLine("context.getSuper(env, \"" + name + "\", b_" + name + ", frame, runtime, " + cb);

    this._emitLine(id + " = runtime.markSafe(" + id + ");");

    this._addScopeLevel();

    frame.set(id, id);
  };

  _proto.compileExtends = function compileExtends(node, frame) {
    var k = this._tmpid();

    var parentTemplateId = this._compileGetTemplate(node, frame, true, false); // extends is a dynamic tag and can occur within a block like
    // `if`, so if this happens we need to capture the parent
    // template in the top-level scope


    this._emitLine("parentTemplate = " + parentTemplateId);

    this._emitLine("for(var " + k + " in parentTemplate.blocks) {");

    this._emitLine("context.addBlock(" + k + ", parentTemplate.blocks[" + k + "]);");

    this._emitLine('}');

    this._addScopeLevel();
  };

  _proto.compileInclude = function compileInclude(node, frame) {
    this._emitLine('var tasks = [];');

    this._emitLine('tasks.push(');

    this._emitLine('function(callback) {');

    var id = this._compileGetTemplate(node, frame, false, node.ignoreMissing);

    this._emitLine("callback(null," + id + ");});");

    this._emitLine('});');

    var id2 = this._tmpid();

    this._emitLine('tasks.push(');

    this._emitLine('function(template, callback){');

    this._emitLine('template.render(context.getVariables(), frame, ' + this._makeCallback(id2));

    this._emitLine('callback(null,' + id2 + ');});');

    this._emitLine('});');

    this._emitLine('tasks.push(');

    this._emitLine('function(result, callback){');

    this._emitLine(this.buffer + " += result;");

    this._emitLine('callback(null);');

    this._emitLine('});');

    this._emitLine('env.waterfall(tasks, function(){');

    this._addScopeLevel();
  };

  _proto.compileTemplateData = function compileTemplateData(node, frame) {
    this.compileLiteral(node, frame);
  };

  _proto.compileCapture = function compileCapture(node, frame) {
    var _this14 = this;

    // we need to temporarily override the current buffer id as 'output'
    // so the set block writes to the capture output instead of the buffer
    var buffer = this.buffer;
    this.buffer = 'output';

    this._emitLine('(function() {');

    this._emitLine('var output = "";');

    this._withScopedSyntax(function () {
      _this14.compile(node.body, frame);
    });

    this._emitLine('return output;');

    this._emitLine('})()'); // and of course, revert back to the old buffer id


    this.buffer = buffer;
  };

  _proto.compileOutput = function compileOutput(node, frame) {
    var _this15 = this;

    var children = node.children;
    children.forEach(function (child) {
      // TemplateData is a special case because it is never
      // autoescaped, so simply output it for optimization
      if (child instanceof nodes.TemplateData) {
        if (child.value) {
          _this15._emit(_this15.buffer + " += ");

          _this15.compileLiteral(child, frame);

          _this15._emitLine(';');
        }
      } else {
        _this15._emit(_this15.buffer + " += runtime.suppressValue(");

        if (_this15.throwOnUndefined) {
          _this15._emit('runtime.ensureDefined(');
        }

        _this15.compile(child, frame);

        if (_this15.throwOnUndefined) {
          _this15._emit("," + node.lineno + "," + node.colno + ")");
        }

        _this15._emit(', env.opts.autoescape);\n');
      }
    });
  };

  _proto.compileRoot = function compileRoot(node, frame) {
    var _this16 = this;

    if (frame) {
      this.fail('compileRoot: root node can\'t have frame');
    }

    frame = new Frame();

    this._emitFuncBegin(node, 'root');

    this._emitLine('var parentTemplate = null;');

    this._compileChildren(node, frame);

    this._emitLine('if(parentTemplate) {');

    this._emitLine('parentTemplate.rootRenderFunc(env, context, frame, runtime, cb);');

    this._emitLine('} else {');

    this._emitLine("cb(null, " + this.buffer + ");");

    this._emitLine('}');

    this._emitFuncEnd(true);

    this.inBlock = true;
    var blockNames = [];
    var blocks = node.findAll(nodes.Block);
    blocks.forEach(function (block, i) {
      var name = block.name.value;

      if (blockNames.indexOf(name) !== -1) {
        throw new Error("Block \"" + name + "\" defined more than once.");
      }

      blockNames.push(name);

      _this16._emitFuncBegin(block, "b_" + name);

      var tmpFrame = new Frame();

      _this16._emitLine('var frame = frame.push(true);');

      _this16.compile(block.body, tmpFrame);

      _this16._emitFuncEnd();
    });

    this._emitLine('return {');

    blocks.forEach(function (block, i) {
      var blockName = "b_" + block.name.value;

      _this16._emitLine(blockName + ": " + blockName + ",");
    });

    this._emitLine('root: root\n};');
  };

  _proto.compile = function compile(node, frame) {
    var _compile = this['compile' + node.typename];

    if (_compile) {
      _compile.call(this, node, frame);
    } else {
      this.fail("compile: Cannot compile node: " + node.typename, node.lineno, node.colno);
    }
  };

  _proto.getCode = function getCode() {
    return this.codebuf.join('');
  };

  return Compiler;
}(Obj);

module.exports = {
  compile: function compile(src, asyncFilters, extensions, name, opts) {
    if (opts === void 0) {
      opts = {};
    }

    var c = new Compiler(name, opts.throwOnUndefined); // Run the extension preprocessors against the source.

    var preprocessors = (extensions || []).map(function (ext) {
      return ext.preprocess;
    }).filter(function (f) {
      return !!f;
    });
    var processedSrc = preprocessors.reduce(function (s, processor) {
      return processor(s);
    }, src);
    c.compile(transformer.transform(parser.parse(processedSrc, extensions, opts), asyncFilters, name));
    return c.getCode();
  },
  Compiler: Compiler
};

/***/ }),
/* 6 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

var path = __webpack_require__(4);

var _require = __webpack_require__(1),
    EmitterObj = _require.EmitterObj;

module.exports = /*#__PURE__*/function (_EmitterObj) {
  _inheritsLoose(Loader, _EmitterObj);

  function Loader() {
    return _EmitterObj.apply(this, arguments) || this;
  }

  var _proto = Loader.prototype;

  _proto.resolve = function resolve(from, to) {
    return path.resolve(path.dirname(from), to);
  };

  _proto.isRelative = function isRelative(filename) {
    return filename.indexOf('./') === 0 || filename.indexOf('../') === 0;
  };

  return Loader;
}(EmitterObj);

/***/ }),
/* 7 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

var asap = __webpack_require__(12);

var _waterfall = __webpack_require__(15);

var lib = __webpack_require__(0);

var compiler = __webpack_require__(5);

var filters = __webpack_require__(18);

var _require = __webpack_require__(10),
    FileSystemLoader = _require.FileSystemLoader,
    WebLoader = _require.WebLoader,
    PrecompiledLoader = _require.PrecompiledLoader;

var tests = __webpack_require__(20);

var globals = __webpack_require__(21);

var _require2 = __webpack_require__(1),
    Obj = _require2.Obj,
    EmitterObj = _require2.EmitterObj;

var globalRuntime = __webpack_require__(2);

var handleError = globalRuntime.handleError,
    Frame = globalRuntime.Frame;

var expressApp = __webpack_require__(22); // If the user is using the async API, *always* call it
// asynchronously even if the template was synchronous.


function callbackAsap(cb, err, res) {
  asap(function () {
    cb(err, res);
  });
}
/**
 * A no-op template, for use with {% include ignore missing %}
 */


var noopTmplSrc = {
  type: 'code',
  obj: {
    root: function root(env, context, frame, runtime, cb) {
      try {
        cb(null, '');
      } catch (e) {
        cb(handleError(e, null, null));
      }
    }
  }
};

var Environment = /*#__PURE__*/function (_EmitterObj) {
  _inheritsLoose(Environment, _EmitterObj);

  function Environment() {
    return _EmitterObj.apply(this, arguments) || this;
  }

  var _proto = Environment.prototype;

  _proto.init = function init(loaders, opts) {
    var _this = this;

    // The dev flag determines the trace that'll be shown on errors.
    // If set to true, returns the full trace from the error point,
    // otherwise will return trace starting from Template.render
    // (the full trace from within nunjucks may confuse developers using
    //  the library)
    // defaults to false
    opts = this.opts = opts || {};
    this.opts.dev = !!opts.dev; // The autoescape flag sets global autoescaping. If true,
    // every string variable will be escaped by default.
    // If false, strings can be manually escaped using the `escape` filter.
    // defaults to true

    this.opts.autoescape = opts.autoescape != null ? opts.autoescape : true; // If true, this will make the system throw errors if trying
    // to output a null or undefined value

    this.opts.throwOnUndefined = !!opts.throwOnUndefined;
    this.opts.trimBlocks = !!opts.trimBlocks;
    this.opts.lstripBlocks = !!opts.lstripBlocks;
    this.loaders = [];

    if (!loaders) {
      // The filesystem loader is only available server-side
      if (FileSystemLoader) {
        this.loaders = [new FileSystemLoader('views')];
      } else if (WebLoader) {
        this.loaders = [new WebLoader('/views')];
      }
    } else {
      this.loaders = lib.isArray(loaders) ? loaders : [loaders];
    } // It's easy to use precompiled templates: just include them
    // before you configure nunjucks and this will automatically
    // pick it up and use it


    if (typeof window !== 'undefined' && window.nunjucksPrecompiled) {
      this.loaders.unshift(new PrecompiledLoader(window.nunjucksPrecompiled));
    }

    this._initLoaders();

    this.globals = globals();
    this.filters = {};
    this.tests = {};
    this.asyncFilters = [];
    this.extensions = {};
    this.extensionsList = [];

    lib._entries(filters).forEach(function (_ref) {
      var name = _ref[0],
          filter = _ref[1];
      return _this.addFilter(name, filter);
    });

    lib._entries(tests).forEach(function (_ref2) {
      var name = _ref2[0],
          test = _ref2[1];
      return _this.addTest(name, test);
    });
  };

  _proto._initLoaders = function _initLoaders() {
    var _this2 = this;

    this.loaders.forEach(function (loader) {
      // Caching and cache busting
      loader.cache = {};

      if (typeof loader.on === 'function') {
        loader.on('update', function (name, fullname) {
          loader.cache[name] = null;

          _this2.emit('update', name, fullname, loader);
        });
        loader.on('load', function (name, source) {
          _this2.emit('load', name, source, loader);
        });
      }
    });
  };

  _proto.invalidateCache = function invalidateCache() {
    this.loaders.forEach(function (loader) {
      loader.cache = {};
    });
  };

  _proto.addExtension = function addExtension(name, extension) {
    extension.__name = name;
    this.extensions[name] = extension;
    this.extensionsList.push(extension);
    return this;
  };

  _proto.removeExtension = function removeExtension(name) {
    var extension = this.getExtension(name);

    if (!extension) {
      return;
    }

    this.extensionsList = lib.without(this.extensionsList, extension);
    delete this.extensions[name];
  };

  _proto.getExtension = function getExtension(name) {
    return this.extensions[name];
  };

  _proto.hasExtension = function hasExtension(name) {
    return !!this.extensions[name];
  };

  _proto.addGlobal = function addGlobal(name, value) {
    this.globals[name] = value;
    return this;
  };

  _proto.getGlobal = function getGlobal(name) {
    if (typeof this.globals[name] === 'undefined') {
      throw new Error('global not found: ' + name);
    }

    return this.globals[name];
  };

  _proto.addFilter = function addFilter(name, func, async) {
    var wrapped = func;

    if (async) {
      this.asyncFilters.push(name);
    }

    this.filters[name] = wrapped;
    return this;
  };

  _proto.getFilter = function getFilter(name) {
    if (!this.filters[name]) {
      throw new Error('filter not found: ' + name);
    }

    return this.filters[name];
  };

  _proto.addTest = function addTest(name, func) {
    this.tests[name] = func;
    return this;
  };

  _proto.getTest = function getTest(name) {
    if (!this.tests[name]) {
      throw new Error('test not found: ' + name);
    }

    return this.tests[name];
  };

  _proto.resolveTemplate = function resolveTemplate(loader, parentName, filename) {
    var isRelative = loader.isRelative && parentName ? loader.isRelative(filename) : false;
    return isRelative && loader.resolve ? loader.resolve(parentName, filename) : filename;
  };

  _proto.getTemplate = function getTemplate(name, eagerCompile, parentName, ignoreMissing, cb) {
    var _this3 = this;

    var that = this;
    var tmpl = null;

    if (name && name.raw) {
      // this fixes autoescape for templates referenced in symbols
      name = name.raw;
    }

    if (lib.isFunction(parentName)) {
      cb = parentName;
      parentName = null;
      eagerCompile = eagerCompile || false;
    }

    if (lib.isFunction(eagerCompile)) {
      cb = eagerCompile;
      eagerCompile = false;
    }

    if (name instanceof Template) {
      tmpl = name;
    } else if (typeof name !== 'string') {
      throw new Error('template names must be a string: ' + name);
    } else {
      for (var i = 0; i < this.loaders.length; i++) {
        var loader = this.loaders[i];
        tmpl = loader.cache[this.resolveTemplate(loader, parentName, name)];

        if (tmpl) {
          break;
        }
      }
    }

    if (tmpl) {
      if (eagerCompile) {
        tmpl.compile();
      }

      if (cb) {
        cb(null, tmpl);
        return undefined;
      } else {
        return tmpl;
      }
    }

    var syncResult;

    var createTemplate = function createTemplate(err, info) {
      if (!info && !err && !ignoreMissing) {
        err = new Error('template not found: ' + name);
      }

      if (err) {
        if (cb) {
          cb(err);
          return;
        } else {
          throw err;
        }
      }

      var newTmpl;

      if (!info) {
        newTmpl = new Template(noopTmplSrc, _this3, '', eagerCompile);
      } else {
        newTmpl = new Template(info.src, _this3, info.path, eagerCompile);

        if (!info.noCache) {
          info.loader.cache[name] = newTmpl;
        }
      }

      if (cb) {
        cb(null, newTmpl);
      } else {
        syncResult = newTmpl;
      }
    };

    lib.asyncIter(this.loaders, function (loader, i, next, done) {
      function handle(err, src) {
        if (err) {
          done(err);
        } else if (src) {
          src.loader = loader;
          done(null, src);
        } else {
          next();
        }
      } // Resolve name relative to parentName


      name = that.resolveTemplate(loader, parentName, name);

      if (loader.async) {
        loader.getSource(name, handle);
      } else {
        handle(null, loader.getSource(name));
      }
    }, createTemplate);
    return syncResult;
  };

  _proto.express = function express(app) {
    return expressApp(this, app);
  };

  _proto.render = function render(name, ctx, cb) {
    if (lib.isFunction(ctx)) {
      cb = ctx;
      ctx = null;
    } // We support a synchronous API to make it easier to migrate
    // existing code to async. This works because if you don't do
    // anything async work, the whole thing is actually run
    // synchronously.


    var syncResult = null;
    this.getTemplate(name, function (err, tmpl) {
      if (err && cb) {
        callbackAsap(cb, err);
      } else if (err) {
        throw err;
      } else {
        syncResult = tmpl.render(ctx, cb);
      }
    });
    return syncResult;
  };

  _proto.renderString = function renderString(src, ctx, opts, cb) {
    if (lib.isFunction(opts)) {
      cb = opts;
      opts = {};
    }

    opts = opts || {};
    var tmpl = new Template(src, this, opts.path);
    return tmpl.render(ctx, cb);
  };

  _proto.waterfall = function waterfall(tasks, callback, forceAsync) {
    return _waterfall(tasks, callback, forceAsync);
  };

  return Environment;
}(EmitterObj);

var Context = /*#__PURE__*/function (_Obj) {
  _inheritsLoose(Context, _Obj);

  function Context() {
    return _Obj.apply(this, arguments) || this;
  }

  var _proto2 = Context.prototype;

  _proto2.init = function init(ctx, blocks, env) {
    var _this4 = this;

    // Has to be tied to an environment so we can tap into its globals.
    this.env = env || new Environment(); // Make a duplicate of ctx

    this.ctx = lib.extend({}, ctx);
    this.blocks = {};
    this.exported = [];
    lib.keys(blocks).forEach(function (name) {
      _this4.addBlock(name, blocks[name]);
    });
  };

  _proto2.lookup = function lookup(name) {
    // This is one of the most called functions, so optimize for
    // the typical case where the name isn't in the globals
    if (name in this.env.globals && !(name in this.ctx)) {
      return this.env.globals[name];
    } else {
      return this.ctx[name];
    }
  };

  _proto2.setVariable = function setVariable(name, val) {
    this.ctx[name] = val;
  };

  _proto2.getVariables = function getVariables() {
    return this.ctx;
  };

  _proto2.addBlock = function addBlock(name, block) {
    this.blocks[name] = this.blocks[name] || [];
    this.blocks[name].push(block);
    return this;
  };

  _proto2.getBlock = function getBlock(name) {
    if (!this.blocks[name]) {
      throw new Error('unknown block "' + name + '"');
    }

    return this.blocks[name][0];
  };

  _proto2.getSuper = function getSuper(env, name, block, frame, runtime, cb) {
    var idx = lib.indexOf(this.blocks[name] || [], block);
    var blk = this.blocks[name][idx + 1];
    var context = this;

    if (idx === -1 || !blk) {
      throw new Error('no super block available for "' + name + '"');
    }

    blk(env, context, frame, runtime, cb);
  };

  _proto2.addExport = function addExport(name) {
    this.exported.push(name);
  };

  _proto2.getExported = function getExported() {
    var _this5 = this;

    var exported = {};
    this.exported.forEach(function (name) {
      exported[name] = _this5.ctx[name];
    });
    return exported;
  };

  return Context;
}(Obj);

var Template = /*#__PURE__*/function (_Obj2) {
  _inheritsLoose(Template, _Obj2);

  function Template() {
    return _Obj2.apply(this, arguments) || this;
  }

  var _proto3 = Template.prototype;

  _proto3.init = function init(src, env, path, eagerCompile) {
    this.env = env || new Environment();

    if (lib.isObject(src)) {
      switch (src.type) {
        case 'code':
          this.tmplProps = src.obj;
          break;

        case 'string':
          this.tmplStr = src.obj;
          break;

        default:
          throw new Error("Unexpected template object type " + src.type + "; expected 'code', or 'string'");
      }
    } else if (lib.isString(src)) {
      this.tmplStr = src;
    } else {
      throw new Error('src must be a string or an object describing the source');
    }

    this.path = path;

    if (eagerCompile) {
      try {
        this._compile();
      } catch (err) {
        throw lib._prettifyError(this.path, this.env.opts.dev, err);
      }
    } else {
      this.compiled = false;
    }
  };

  _proto3.render = function render(ctx, parentFrame, cb) {
    var _this6 = this;

    if (typeof ctx === 'function') {
      cb = ctx;
      ctx = {};
    } else if (typeof parentFrame === 'function') {
      cb = parentFrame;
      parentFrame = null;
    } // If there is a parent frame, we are being called from internal
    // code of another template, and the internal system
    // depends on the sync/async nature of the parent template
    // to be inherited, so force an async callback


    var forceAsync = !parentFrame; // Catch compile errors for async rendering

    try {
      this.compile();
    } catch (e) {
      var err = lib._prettifyError(this.path, this.env.opts.dev, e);

      if (cb) {
        return callbackAsap(cb, err);
      } else {
        throw err;
      }
    }

    var context = new Context(ctx || {}, this.blocks, this.env);
    var frame = parentFrame ? parentFrame.push(true) : new Frame();
    frame.topLevel = true;
    var syncResult = null;
    var didError = false;
    this.rootRenderFunc(this.env, context, frame, globalRuntime, function (err, res) {
      // TODO: this is actually a bug in the compiled template (because waterfall
      // tasks are both not passing errors up the chain of callbacks AND are not
      // causing a return from the top-most render function). But fixing that
      // will require a more substantial change to the compiler.
      if (didError && cb && typeof res !== 'undefined') {
        // prevent multiple calls to cb
        return;
      }

      if (err) {
        err = lib._prettifyError(_this6.path, _this6.env.opts.dev, err);
        didError = true;
      }

      if (cb) {
        if (forceAsync) {
          callbackAsap(cb, err, res);
        } else {
          cb(err, res);
        }
      } else {
        if (err) {
          throw err;
        }

        syncResult = res;
      }
    });
    return syncResult;
  };

  _proto3.getExported = function getExported(ctx, parentFrame, cb) {
    // eslint-disable-line consistent-return
    if (typeof ctx === 'function') {
      cb = ctx;
      ctx = {};
    }

    if (typeof parentFrame === 'function') {
      cb = parentFrame;
      parentFrame = null;
    } // Catch compile errors for async rendering


    try {
      this.compile();
    } catch (e) {
      if (cb) {
        return cb(e);
      } else {
        throw e;
      }
    }

    var frame = parentFrame ? parentFrame.push() : new Frame();
    frame.topLevel = true; // Run the rootRenderFunc to populate the context with exported vars

    var context = new Context(ctx || {}, this.blocks, this.env);
    this.rootRenderFunc(this.env, context, frame, globalRuntime, function (err) {
      if (err) {
        cb(err, null);
      } else {
        cb(null, context.getExported());
      }
    });
  };

  _proto3.compile = function compile() {
    if (!this.compiled) {
      this._compile();
    }
  };

  _proto3._compile = function _compile() {
    var props;

    if (this.tmplProps) {
      props = this.tmplProps;
    } else {
      var source = compiler.compile(this.tmplStr, this.env.asyncFilters, this.env.extensionsList, this.path, this.env.opts);
      var func = new Function(source); // eslint-disable-line no-new-func

      props = func();
    }

    this.blocks = this._getBlocks(props);
    this.rootRenderFunc = props.root;
    this.compiled = true;
  };

  _proto3._getBlocks = function _getBlocks(props) {
    var blocks = {};
    lib.keys(props).forEach(function (k) {
      if (k.slice(0, 2) === 'b_') {
        blocks[k.slice(2)] = props[k];
      }
    });
    return blocks;
  };

  return Template;
}(Obj);

module.exports = {
  Environment: Environment,
  Template: Template
};

/***/ }),
/* 8 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

var lexer = __webpack_require__(9);

var nodes = __webpack_require__(3);

var Obj = __webpack_require__(1).Obj;

var lib = __webpack_require__(0);

var Parser = /*#__PURE__*/function (_Obj) {
  _inheritsLoose(Parser, _Obj);

  function Parser() {
    return _Obj.apply(this, arguments) || this;
  }

  var _proto = Parser.prototype;

  _proto.init = function init(tokens) {
    this.tokens = tokens;
    this.peeked = null;
    this.breakOnBlocks = null;
    this.dropLeadingWhitespace = false;
    this.extensions = [];
  };

  _proto.nextToken = function nextToken(withWhitespace) {
    var tok;

    if (this.peeked) {
      if (!withWhitespace && this.peeked.type === lexer.TOKEN_WHITESPACE) {
        this.peeked = null;
      } else {
        tok = this.peeked;
        this.peeked = null;
        return tok;
      }
    }

    tok = this.tokens.nextToken();

    if (!withWhitespace) {
      while (tok && tok.type === lexer.TOKEN_WHITESPACE) {
        tok = this.tokens.nextToken();
      }
    }

    return tok;
  };

  _proto.peekToken = function peekToken() {
    this.peeked = this.peeked || this.nextToken();
    return this.peeked;
  };

  _proto.pushToken = function pushToken(tok) {
    if (this.peeked) {
      throw new Error('pushToken: can only push one token on between reads');
    }

    this.peeked = tok;
  };

  _proto.error = function error(msg, lineno, colno) {
    if (lineno === undefined || colno === undefined) {
      var tok = this.peekToken() || {};
      lineno = tok.lineno;
      colno = tok.colno;
    }

    if (lineno !== undefined) {
      lineno += 1;
    }

    if (colno !== undefined) {
      colno += 1;
    }

    return new lib.TemplateError(msg, lineno, colno);
  };

  _proto.fail = function fail(msg, lineno, colno) {
    throw this.error(msg, lineno, colno);
  };

  _proto.skip = function skip(type) {
    var tok = this.nextToken();

    if (!tok || tok.type !== type) {
      this.pushToken(tok);
      return false;
    }

    return true;
  };

  _proto.expect = function expect(type) {
    var tok = this.nextToken();

    if (tok.type !== type) {
      this.fail('expected ' + type + ', got ' + tok.type, tok.lineno, tok.colno);
    }

    return tok;
  };

  _proto.skipValue = function skipValue(type, val) {
    var tok = this.nextToken();

    if (!tok || tok.type !== type || tok.value !== val) {
      this.pushToken(tok);
      return false;
    }

    return true;
  };

  _proto.skipSymbol = function skipSymbol(val) {
    return this.skipValue(lexer.TOKEN_SYMBOL, val);
  };

  _proto.advanceAfterBlockEnd = function advanceAfterBlockEnd(name) {
    var tok;

    if (!name) {
      tok = this.peekToken();

      if (!tok) {
        this.fail('unexpected end of file');
      }

      if (tok.type !== lexer.TOKEN_SYMBOL) {
        this.fail('advanceAfterBlockEnd: expected symbol token or ' + 'explicit name to be passed');
      }

      name = this.nextToken().value;
    }

    tok = this.nextToken();

    if (tok && tok.type === lexer.TOKEN_BLOCK_END) {
      if (tok.value.charAt(0) === '-') {
        this.dropLeadingWhitespace = true;
      }
    } else {
      this.fail('expected block end in ' + name + ' statement');
    }

    return tok;
  };

  _proto.advanceAfterVariableEnd = function advanceAfterVariableEnd() {
    var tok = this.nextToken();

    if (tok && tok.type === lexer.TOKEN_VARIABLE_END) {
      this.dropLeadingWhitespace = tok.value.charAt(tok.value.length - this.tokens.tags.VARIABLE_END.length - 1) === '-';
    } else {
      this.pushToken(tok);
      this.fail('expected variable end');
    }
  };

  _proto.parseFor = function parseFor() {
    var forTok = this.peekToken();
    var node;
    var endBlock;

    if (this.skipSymbol('for')) {
      node = new nodes.For(forTok.lineno, forTok.colno);
      endBlock = 'endfor';
    } else if (this.skipSymbol('asyncEach')) {
      node = new nodes.AsyncEach(forTok.lineno, forTok.colno);
      endBlock = 'endeach';
    } else if (this.skipSymbol('asyncAll')) {
      node = new nodes.AsyncAll(forTok.lineno, forTok.colno);
      endBlock = 'endall';
    } else {
      this.fail('parseFor: expected for{Async}', forTok.lineno, forTok.colno);
    }

    node.name = this.parsePrimary();

    if (!(node.name instanceof nodes.Symbol)) {
      this.fail('parseFor: variable name expected for loop');
    }

    var type = this.peekToken().type;

    if (type === lexer.TOKEN_COMMA) {
      // key/value iteration
      var key = node.name;
      node.name = new nodes.Array(key.lineno, key.colno);
      node.name.addChild(key);

      while (this.skip(lexer.TOKEN_COMMA)) {
        var prim = this.parsePrimary();
        node.name.addChild(prim);
      }
    }

    if (!this.skipSymbol('in')) {
      this.fail('parseFor: expected "in" keyword for loop', forTok.lineno, forTok.colno);
    }

    node.arr = this.parseExpression();
    this.advanceAfterBlockEnd(forTok.value);
    node.body = this.parseUntilBlocks(endBlock, 'else');

    if (this.skipSymbol('else')) {
      this.advanceAfterBlockEnd('else');
      node.else_ = this.parseUntilBlocks(endBlock);
    }

    this.advanceAfterBlockEnd();
    return node;
  };

  _proto.parseMacro = function parseMacro() {
    var macroTok = this.peekToken();

    if (!this.skipSymbol('macro')) {
      this.fail('expected macro');
    }

    var name = this.parsePrimary(true);
    var args = this.parseSignature();
    var node = new nodes.Macro(macroTok.lineno, macroTok.colno, name, args);
    this.advanceAfterBlockEnd(macroTok.value);
    node.body = this.parseUntilBlocks('endmacro');
    this.advanceAfterBlockEnd();
    return node;
  };

  _proto.parseCall = function parseCall() {
    // a call block is parsed as a normal FunCall, but with an added
    // 'caller' kwarg which is a Caller node.
    var callTok = this.peekToken();

    if (!this.skipSymbol('call')) {
      this.fail('expected call');
    }

    var callerArgs = this.parseSignature(true) || new nodes.NodeList();
    var macroCall = this.parsePrimary();
    this.advanceAfterBlockEnd(callTok.value);
    var body = this.parseUntilBlocks('endcall');
    this.advanceAfterBlockEnd();
    var callerName = new nodes.Symbol(callTok.lineno, callTok.colno, 'caller');
    var callerNode = new nodes.Caller(callTok.lineno, callTok.colno, callerName, callerArgs, body); // add the additional caller kwarg, adding kwargs if necessary

    var args = macroCall.args.children;

    if (!(args[args.length - 1] instanceof nodes.KeywordArgs)) {
      args.push(new nodes.KeywordArgs());
    }

    var kwargs = args[args.length - 1];
    kwargs.addChild(new nodes.Pair(callTok.lineno, callTok.colno, callerName, callerNode));
    return new nodes.Output(callTok.lineno, callTok.colno, [macroCall]);
  };

  _proto.parseWithContext = function parseWithContext() {
    var tok = this.peekToken();
    var withContext = null;

    if (this.skipSymbol('with')) {
      withContext = true;
    } else if (this.skipSymbol('without')) {
      withContext = false;
    }

    if (withContext !== null) {
      if (!this.skipSymbol('context')) {
        this.fail('parseFrom: expected context after with/without', tok.lineno, tok.colno);
      }
    }

    return withContext;
  };

  _proto.parseImport = function parseImport() {
    var importTok = this.peekToken();

    if (!this.skipSymbol('import')) {
      this.fail('parseImport: expected import', importTok.lineno, importTok.colno);
    }

    var template = this.parseExpression();

    if (!this.skipSymbol('as')) {
      this.fail('parseImport: expected "as" keyword', importTok.lineno, importTok.colno);
    }

    var target = this.parseExpression();
    var withContext = this.parseWithContext();
    var node = new nodes.Import(importTok.lineno, importTok.colno, template, target, withContext);
    this.advanceAfterBlockEnd(importTok.value);
    return node;
  };

  _proto.parseFrom = function parseFrom() {
    var fromTok = this.peekToken();

    if (!this.skipSymbol('from')) {
      this.fail('parseFrom: expected from');
    }

    var template = this.parseExpression();

    if (!this.skipSymbol('import')) {
      this.fail('parseFrom: expected import', fromTok.lineno, fromTok.colno);
    }

    var names = new nodes.NodeList();
    var withContext;

    while (1) {
      // eslint-disable-line no-constant-condition
      var nextTok = this.peekToken();

      if (nextTok.type === lexer.TOKEN_BLOCK_END) {
        if (!names.children.length) {
          this.fail('parseFrom: Expected at least one import name', fromTok.lineno, fromTok.colno);
        } // Since we are manually advancing past the block end,
        // need to keep track of whitespace control (normally
        // this is done in `advanceAfterBlockEnd`


        if (nextTok.value.charAt(0) === '-') {
          this.dropLeadingWhitespace = true;
        }

        this.nextToken();
        break;
      }

      if (names.children.length > 0 && !this.skip(lexer.TOKEN_COMMA)) {
        this.fail('parseFrom: expected comma', fromTok.lineno, fromTok.colno);
      }

      var name = this.parsePrimary();

      if (name.value.charAt(0) === '_') {
        this.fail('parseFrom: names starting with an underscore cannot be imported', name.lineno, name.colno);
      }

      if (this.skipSymbol('as')) {
        var alias = this.parsePrimary();
        names.addChild(new nodes.Pair(name.lineno, name.colno, name, alias));
      } else {
        names.addChild(name);
      }

      withContext = this.parseWithContext();
    }

    return new nodes.FromImport(fromTok.lineno, fromTok.colno, template, names, withContext);
  };

  _proto.parseBlock = function parseBlock() {
    var tag = this.peekToken();

    if (!this.skipSymbol('block')) {
      this.fail('parseBlock: expected block', tag.lineno, tag.colno);
    }

    var node = new nodes.Block(tag.lineno, tag.colno);
    node.name = this.parsePrimary();

    if (!(node.name instanceof nodes.Symbol)) {
      this.fail('parseBlock: variable name expected', tag.lineno, tag.colno);
    }

    this.advanceAfterBlockEnd(tag.value);
    node.body = this.parseUntilBlocks('endblock');
    this.skipSymbol('endblock');
    this.skipSymbol(node.name.value);
    var tok = this.peekToken();

    if (!tok) {
      this.fail('parseBlock: expected endblock, got end of file');
    }

    this.advanceAfterBlockEnd(tok.value);
    return node;
  };

  _proto.parseExtends = function parseExtends() {
    var tagName = 'extends';
    var tag = this.peekToken();

    if (!this.skipSymbol(tagName)) {
      this.fail('parseTemplateRef: expected ' + tagName);
    }

    var node = new nodes.Extends(tag.lineno, tag.colno);
    node.template = this.parseExpression();
    this.advanceAfterBlockEnd(tag.value);
    return node;
  };

  _proto.parseInclude = function parseInclude() {
    var tagName = 'include';
    var tag = this.peekToken();

    if (!this.skipSymbol(tagName)) {
      this.fail('parseInclude: expected ' + tagName);
    }

    var node = new nodes.Include(tag.lineno, tag.colno);
    node.template = this.parseExpression();

    if (this.skipSymbol('ignore') && this.skipSymbol('missing')) {
      node.ignoreMissing = true;
    }

    this.advanceAfterBlockEnd(tag.value);
    return node;
  };

  _proto.parseIf = function parseIf() {
    var tag = this.peekToken();
    var node;

    if (this.skipSymbol('if') || this.skipSymbol('elif') || this.skipSymbol('elseif')) {
      node = new nodes.If(tag.lineno, tag.colno);
    } else if (this.skipSymbol('ifAsync')) {
      node = new nodes.IfAsync(tag.lineno, tag.colno);
    } else {
      this.fail('parseIf: expected if, elif, or elseif', tag.lineno, tag.colno);
    }

    node.cond = this.parseExpression();
    this.advanceAfterBlockEnd(tag.value);
    node.body = this.parseUntilBlocks('elif', 'elseif', 'else', 'endif');
    var tok = this.peekToken();

    switch (tok && tok.value) {
      case 'elseif':
      case 'elif':
        node.else_ = this.parseIf();
        break;

      case 'else':
        this.advanceAfterBlockEnd();
        node.else_ = this.parseUntilBlocks('endif');
        this.advanceAfterBlockEnd();
        break;

      case 'endif':
        node.else_ = null;
        this.advanceAfterBlockEnd();
        break;

      default:
        this.fail('parseIf: expected elif, else, or endif, got end of file');
    }

    return node;
  };

  _proto.parseSet = function parseSet() {
    var tag = this.peekToken();

    if (!this.skipSymbol('set')) {
      this.fail('parseSet: expected set', tag.lineno, tag.colno);
    }

    var node = new nodes.Set(tag.lineno, tag.colno, []);
    var target;

    while (target = this.parsePrimary()) {
      node.targets.push(target);

      if (!this.skip(lexer.TOKEN_COMMA)) {
        break;
      }
    }

    if (!this.skipValue(lexer.TOKEN_OPERATOR, '=')) {
      if (!this.skip(lexer.TOKEN_BLOCK_END)) {
        this.fail('parseSet: expected = or block end in set tag', tag.lineno, tag.colno);
      } else {
        node.body = new nodes.Capture(tag.lineno, tag.colno, this.parseUntilBlocks('endset'));
        node.value = null;
        this.advanceAfterBlockEnd();
      }
    } else {
      node.value = this.parseExpression();
      this.advanceAfterBlockEnd(tag.value);
    }

    return node;
  };

  _proto.parseSwitch = function parseSwitch() {
    /*
     * Store the tag names in variables in case someone ever wants to
     * customize this.
     */
    var switchStart = 'switch';
    var switchEnd = 'endswitch';
    var caseStart = 'case';
    var caseDefault = 'default'; // Get the switch tag.

    var tag = this.peekToken(); // fail early if we get some unexpected tag.

    if (!this.skipSymbol(switchStart) && !this.skipSymbol(caseStart) && !this.skipSymbol(caseDefault)) {
      this.fail('parseSwitch: expected "switch," "case" or "default"', tag.lineno, tag.colno);
    } // parse the switch expression


    var expr = this.parseExpression(); // advance until a start of a case, a default case or an endswitch.

    this.advanceAfterBlockEnd(switchStart);
    this.parseUntilBlocks(caseStart, caseDefault, switchEnd); // this is the first case. it could also be an endswitch, we'll check.

    var tok = this.peekToken(); // create new variables for our cases and default case.

    var cases = [];
    var defaultCase; // while we're dealing with new cases nodes...

    do {
      // skip the start symbol and get the case expression
      this.skipSymbol(caseStart);
      var cond = this.parseExpression();
      this.advanceAfterBlockEnd(switchStart); // get the body of the case node and add it to the array of cases.

      var body = this.parseUntilBlocks(caseStart, caseDefault, switchEnd);
      cases.push(new nodes.Case(tok.line, tok.col, cond, body)); // get our next case

      tok = this.peekToken();
    } while (tok && tok.value === caseStart); // we either have a default case or a switch end.


    switch (tok.value) {
      case caseDefault:
        this.advanceAfterBlockEnd();
        defaultCase = this.parseUntilBlocks(switchEnd);
        this.advanceAfterBlockEnd();
        break;

      case switchEnd:
        this.advanceAfterBlockEnd();
        break;

      default:
        // otherwise bail because EOF
        this.fail('parseSwitch: expected "case," "default" or "endswitch," got EOF.');
    } // and return the switch node.


    return new nodes.Switch(tag.lineno, tag.colno, expr, cases, defaultCase);
  };

  _proto.parseStatement = function parseStatement() {
    var tok = this.peekToken();
    var node;

    if (tok.type !== lexer.TOKEN_SYMBOL) {
      this.fail('tag name expected', tok.lineno, tok.colno);
    }

    if (this.breakOnBlocks && lib.indexOf(this.breakOnBlocks, tok.value) !== -1) {
      return null;
    }

    switch (tok.value) {
      case 'raw':
        return this.parseRaw();

      case 'verbatim':
        return this.parseRaw('verbatim');

      case 'if':
      case 'ifAsync':
        return this.parseIf();

      case 'for':
      case 'asyncEach':
      case 'asyncAll':
        return this.parseFor();

      case 'block':
        return this.parseBlock();

      case 'extends':
        return this.parseExtends();

      case 'include':
        return this.parseInclude();

      case 'set':
        return this.parseSet();

      case 'macro':
        return this.parseMacro();

      case 'call':
        return this.parseCall();

      case 'import':
        return this.parseImport();

      case 'from':
        return this.parseFrom();

      case 'filter':
        return this.parseFilterStatement();

      case 'switch':
        return this.parseSwitch();

      default:
        if (this.extensions.length) {
          for (var i = 0; i < this.extensions.length; i++) {
            var ext = this.extensions[i];

            if (lib.indexOf(ext.tags || [], tok.value) !== -1) {
              return ext.parse(this, nodes, lexer);
            }
          }
        }

        this.fail('unknown block tag: ' + tok.value, tok.lineno, tok.colno);
    }

    return node;
  };

  _proto.parseRaw = function parseRaw(tagName) {
    tagName = tagName || 'raw';
    var endTagName = 'end' + tagName; // Look for upcoming raw blocks (ignore all other kinds of blocks)

    var rawBlockRegex = new RegExp('([\\s\\S]*?){%\\s*(' + tagName + '|' + endTagName + ')\\s*(?=%})%}');
    var rawLevel = 1;
    var str = '';
    var matches = null; // Skip opening raw token
    // Keep this token to track line and column numbers

    var begun = this.advanceAfterBlockEnd(); // Exit when there's nothing to match
    // or when we've found the matching "endraw" block

    while ((matches = this.tokens._extractRegex(rawBlockRegex)) && rawLevel > 0) {
      var all = matches[0];
      var pre = matches[1];
      var blockName = matches[2]; // Adjust rawlevel

      if (blockName === tagName) {
        rawLevel += 1;
      } else if (blockName === endTagName) {
        rawLevel -= 1;
      } // Add to str


      if (rawLevel === 0) {
        // We want to exclude the last "endraw"
        str += pre; // Move tokenizer to beginning of endraw block

        this.tokens.backN(all.length - pre.length);
      } else {
        str += all;
      }
    }

    return new nodes.Output(begun.lineno, begun.colno, [new nodes.TemplateData(begun.lineno, begun.colno, str)]);
  };

  _proto.parsePostfix = function parsePostfix(node) {
    var lookup;
    var tok = this.peekToken();

    while (tok) {
      if (tok.type === lexer.TOKEN_LEFT_PAREN) {
        // Function call
        node = new nodes.FunCall(tok.lineno, tok.colno, node, this.parseSignature());
      } else if (tok.type === lexer.TOKEN_LEFT_BRACKET) {
        // Reference
        lookup = this.parseAggregate();

        if (lookup.children.length > 1) {
          this.fail('invalid index');
        }

        node = new nodes.LookupVal(tok.lineno, tok.colno, node, lookup.children[0]);
      } else if (tok.type === lexer.TOKEN_OPERATOR && tok.value === '.') {
        // Reference
        this.nextToken();
        var val = this.nextToken();

        if (val.type !== lexer.TOKEN_SYMBOL) {
          this.fail('expected name as lookup value, got ' + val.value, val.lineno, val.colno);
        } // Make a literal string because it's not a variable
        // reference


        lookup = new nodes.Literal(val.lineno, val.colno, val.value);
        node = new nodes.LookupVal(tok.lineno, tok.colno, node, lookup);
      } else {
        break;
      }

      tok = this.peekToken();
    }

    return node;
  };

  _proto.parseExpression = function parseExpression() {
    var node = this.parseInlineIf();
    return node;
  };

  _proto.parseInlineIf = function parseInlineIf() {
    var node = this.parseOr();

    if (this.skipSymbol('if')) {
      var condNode = this.parseOr();
      var bodyNode = node;
      node = new nodes.InlineIf(node.lineno, node.colno);
      node.body = bodyNode;
      node.cond = condNode;

      if (this.skipSymbol('else')) {
        node.else_ = this.parseOr();
      } else {
        node.else_ = null;
      }
    }

    return node;
  };

  _proto.parseOr = function parseOr() {
    var node = this.parseAnd();

    while (this.skipSymbol('or')) {
      var node2 = this.parseAnd();
      node = new nodes.Or(node.lineno, node.colno, node, node2);
    }

    return node;
  };

  _proto.parseAnd = function parseAnd() {
    var node = this.parseNot();

    while (this.skipSymbol('and')) {
      var node2 = this.parseNot();
      node = new nodes.And(node.lineno, node.colno, node, node2);
    }

    return node;
  };

  _proto.parseNot = function parseNot() {
    var tok = this.peekToken();

    if (this.skipSymbol('not')) {
      return new nodes.Not(tok.lineno, tok.colno, this.parseNot());
    }

    return this.parseIn();
  };

  _proto.parseIn = function parseIn() {
    var node = this.parseIs();

    while (1) {
      // eslint-disable-line no-constant-condition
      // check if the next token is 'not'
      var tok = this.nextToken();

      if (!tok) {
        break;
      }

      var invert = tok.type === lexer.TOKEN_SYMBOL && tok.value === 'not'; // if it wasn't 'not', put it back

      if (!invert) {
        this.pushToken(tok);
      }

      if (this.skipSymbol('in')) {
        var node2 = this.parseIs();
        node = new nodes.In(node.lineno, node.colno, node, node2);

        if (invert) {
          node = new nodes.Not(node.lineno, node.colno, node);
        }
      } else {
        // if we'd found a 'not' but this wasn't an 'in', put back the 'not'
        if (invert) {
          this.pushToken(tok);
        }

        break;
      }
    }

    return node;
  } // I put this right after "in" in the operator precedence stack. That can
  // obviously be changed to be closer to Jinja.
  ;

  _proto.parseIs = function parseIs() {
    var node = this.parseCompare(); // look for an is

    if (this.skipSymbol('is')) {
      // look for a not
      var not = this.skipSymbol('not'); // get the next node

      var node2 = this.parseCompare(); // create an Is node using the next node and the info from our Is node.

      node = new nodes.Is(node.lineno, node.colno, node, node2); // if we have a Not, create a Not node from our Is node.

      if (not) {
        node = new nodes.Not(node.lineno, node.colno, node);
      }
    } // return the node.


    return node;
  };

  _proto.parseCompare = function parseCompare() {
    var compareOps = ['==', '===', '!=', '!==', '<', '>', '<=', '>='];
    var expr = this.parseConcat();
    var ops = [];

    while (1) {
      // eslint-disable-line no-constant-condition
      var tok = this.nextToken();

      if (!tok) {
        break;
      } else if (compareOps.indexOf(tok.value) !== -1) {
        ops.push(new nodes.CompareOperand(tok.lineno, tok.colno, this.parseConcat(), tok.value));
      } else {
        this.pushToken(tok);
        break;
      }
    }

    if (ops.length) {
      return new nodes.Compare(ops[0].lineno, ops[0].colno, expr, ops);
    } else {
      return expr;
    }
  } // finds the '~' for string concatenation
  ;

  _proto.parseConcat = function parseConcat() {
    var node = this.parseAdd();

    while (this.skipValue(lexer.TOKEN_TILDE, '~')) {
      var node2 = this.parseAdd();
      node = new nodes.Concat(node.lineno, node.colno, node, node2);
    }

    return node;
  };

  _proto.parseAdd = function parseAdd() {
    var node = this.parseSub();

    while (this.skipValue(lexer.TOKEN_OPERATOR, '+')) {
      var node2 = this.parseSub();
      node = new nodes.Add(node.lineno, node.colno, node, node2);
    }

    return node;
  };

  _proto.parseSub = function parseSub() {
    var node = this.parseMul();

    while (this.skipValue(lexer.TOKEN_OPERATOR, '-')) {
      var node2 = this.parseMul();
      node = new nodes.Sub(node.lineno, node.colno, node, node2);
    }

    return node;
  };

  _proto.parseMul = function parseMul() {
    var node = this.parseDiv();

    while (this.skipValue(lexer.TOKEN_OPERATOR, '*')) {
      var node2 = this.parseDiv();
      node = new nodes.Mul(node.lineno, node.colno, node, node2);
    }

    return node;
  };

  _proto.parseDiv = function parseDiv() {
    var node = this.parseFloorDiv();

    while (this.skipValue(lexer.TOKEN_OPERATOR, '/')) {
      var node2 = this.parseFloorDiv();
      node = new nodes.Div(node.lineno, node.colno, node, node2);
    }

    return node;
  };

  _proto.parseFloorDiv = function parseFloorDiv() {
    var node = this.parseMod();

    while (this.skipValue(lexer.TOKEN_OPERATOR, '//')) {
      var node2 = this.parseMod();
      node = new nodes.FloorDiv(node.lineno, node.colno, node, node2);
    }

    return node;
  };

  _proto.parseMod = function parseMod() {
    var node = this.parsePow();

    while (this.skipValue(lexer.TOKEN_OPERATOR, '%')) {
      var node2 = this.parsePow();
      node = new nodes.Mod(node.lineno, node.colno, node, node2);
    }

    return node;
  };

  _proto.parsePow = function parsePow() {
    var node = this.parseUnary();

    while (this.skipValue(lexer.TOKEN_OPERATOR, '**')) {
      var node2 = this.parseUnary();
      node = new nodes.Pow(node.lineno, node.colno, node, node2);
    }

    return node;
  };

  _proto.parseUnary = function parseUnary(noFilters) {
    var tok = this.peekToken();
    var node;

    if (this.skipValue(lexer.TOKEN_OPERATOR, '-')) {
      node = new nodes.Neg(tok.lineno, tok.colno, this.parseUnary(true));
    } else if (this.skipValue(lexer.TOKEN_OPERATOR, '+')) {
      node = new nodes.Pos(tok.lineno, tok.colno, this.parseUnary(true));
    } else {
      node = this.parsePrimary();
    }

    if (!noFilters) {
      node = this.parseFilter(node);
    }

    return node;
  };

  _proto.parsePrimary = function parsePrimary(noPostfix) {
    var tok = this.nextToken();
    var val;
    var node = null;

    if (!tok) {
      this.fail('expected expression, got end of file');
    } else if (tok.type === lexer.TOKEN_STRING) {
      val = tok.value;
    } else if (tok.type === lexer.TOKEN_INT) {
      val = parseInt(tok.value, 10);
    } else if (tok.type === lexer.TOKEN_FLOAT) {
      val = parseFloat(tok.value);
    } else if (tok.type === lexer.TOKEN_BOOLEAN) {
      if (tok.value === 'true') {
        val = true;
      } else if (tok.value === 'false') {
        val = false;
      } else {
        this.fail('invalid boolean: ' + tok.value, tok.lineno, tok.colno);
      }
    } else if (tok.type === lexer.TOKEN_NONE) {
      val = null;
    } else if (tok.type === lexer.TOKEN_REGEX) {
      val = new RegExp(tok.value.body, tok.value.flags);
    }

    if (val !== undefined) {
      node = new nodes.Literal(tok.lineno, tok.colno, val);
    } else if (tok.type === lexer.TOKEN_SYMBOL) {
      node = new nodes.Symbol(tok.lineno, tok.colno, tok.value);
    } else {
      // See if it's an aggregate type, we need to push the
      // current delimiter token back on
      this.pushToken(tok);
      node = this.parseAggregate();
    }

    if (!noPostfix) {
      node = this.parsePostfix(node);
    }

    if (node) {
      return node;
    } else {
      throw this.error("unexpected token: " + tok.value, tok.lineno, tok.colno);
    }
  };

  _proto.parseFilterName = function parseFilterName() {
    var tok = this.expect(lexer.TOKEN_SYMBOL);
    var name = tok.value;

    while (this.skipValue(lexer.TOKEN_OPERATOR, '.')) {
      name += '.' + this.expect(lexer.TOKEN_SYMBOL).value;
    }

    return new nodes.Symbol(tok.lineno, tok.colno, name);
  };

  _proto.parseFilterArgs = function parseFilterArgs(node) {
    if (this.peekToken().type === lexer.TOKEN_LEFT_PAREN) {
      // Get a FunCall node and add the parameters to the
      // filter
      var call = this.parsePostfix(node);
      return call.args.children;
    }

    return [];
  };

  _proto.parseFilter = function parseFilter(node) {
    while (this.skip(lexer.TOKEN_PIPE)) {
      var name = this.parseFilterName();
      node = new nodes.Filter(name.lineno, name.colno, name, new nodes.NodeList(name.lineno, name.colno, [node].concat(this.parseFilterArgs(node))));
    }

    return node;
  };

  _proto.parseFilterStatement = function parseFilterStatement() {
    var filterTok = this.peekToken();

    if (!this.skipSymbol('filter')) {
      this.fail('parseFilterStatement: expected filter');
    }

    var name = this.parseFilterName();
    var args = this.parseFilterArgs(name);
    this.advanceAfterBlockEnd(filterTok.value);
    var body = new nodes.Capture(name.lineno, name.colno, this.parseUntilBlocks('endfilter'));
    this.advanceAfterBlockEnd();
    var node = new nodes.Filter(name.lineno, name.colno, name, new nodes.NodeList(name.lineno, name.colno, [body].concat(args)));
    return new nodes.Output(name.lineno, name.colno, [node]);
  };

  _proto.parseAggregate = function parseAggregate() {
    var tok = this.nextToken();
    var node;

    switch (tok.type) {
      case lexer.TOKEN_LEFT_PAREN:
        node = new nodes.Group(tok.lineno, tok.colno);
        break;

      case lexer.TOKEN_LEFT_BRACKET:
        node = new nodes.Array(tok.lineno, tok.colno);
        break;

      case lexer.TOKEN_LEFT_CURLY:
        node = new nodes.Dict(tok.lineno, tok.colno);
        break;

      default:
        return null;
    }

    while (1) {
      // eslint-disable-line no-constant-condition
      var type = this.peekToken().type;

      if (type === lexer.TOKEN_RIGHT_PAREN || type === lexer.TOKEN_RIGHT_BRACKET || type === lexer.TOKEN_RIGHT_CURLY) {
        this.nextToken();
        break;
      }

      if (node.children.length > 0) {
        if (!this.skip(lexer.TOKEN_COMMA)) {
          this.fail('parseAggregate: expected comma after expression', tok.lineno, tok.colno);
        }
      }

      if (node instanceof nodes.Dict) {
        // TODO: check for errors
        var key = this.parsePrimary(); // We expect a key/value pair for dicts, separated by a
        // colon

        if (!this.skip(lexer.TOKEN_COLON)) {
          this.fail('parseAggregate: expected colon after dict key', tok.lineno, tok.colno);
        } // TODO: check for errors


        var value = this.parseExpression();
        node.addChild(new nodes.Pair(key.lineno, key.colno, key, value));
      } else {
        // TODO: check for errors
        var expr = this.parseExpression();
        node.addChild(expr);
      }
    }

    return node;
  };

  _proto.parseSignature = function parseSignature(tolerant, noParens) {
    var tok = this.peekToken();

    if (!noParens && tok.type !== lexer.TOKEN_LEFT_PAREN) {
      if (tolerant) {
        return null;
      } else {
        this.fail('expected arguments', tok.lineno, tok.colno);
      }
    }

    if (tok.type === lexer.TOKEN_LEFT_PAREN) {
      tok = this.nextToken();
    }

    var args = new nodes.NodeList(tok.lineno, tok.colno);
    var kwargs = new nodes.KeywordArgs(tok.lineno, tok.colno);
    var checkComma = false;

    while (1) {
      // eslint-disable-line no-constant-condition
      tok = this.peekToken();

      if (!noParens && tok.type === lexer.TOKEN_RIGHT_PAREN) {
        this.nextToken();
        break;
      } else if (noParens && tok.type === lexer.TOKEN_BLOCK_END) {
        break;
      }

      if (checkComma && !this.skip(lexer.TOKEN_COMMA)) {
        this.fail('parseSignature: expected comma after expression', tok.lineno, tok.colno);
      } else {
        var arg = this.parseExpression();

        if (this.skipValue(lexer.TOKEN_OPERATOR, '=')) {
          kwargs.addChild(new nodes.Pair(arg.lineno, arg.colno, arg, this.parseExpression()));
        } else {
          args.addChild(arg);
        }
      }

      checkComma = true;
    }

    if (kwargs.children.length) {
      args.addChild(kwargs);
    }

    return args;
  };

  _proto.parseUntilBlocks = function parseUntilBlocks() {
    var prev = this.breakOnBlocks;

    for (var _len = arguments.length, blockNames = new Array(_len), _key = 0; _key < _len; _key++) {
      blockNames[_key] = arguments[_key];
    }

    this.breakOnBlocks = blockNames;
    var ret = this.parse();
    this.breakOnBlocks = prev;
    return ret;
  };

  _proto.parseNodes = function parseNodes() {
    var tok;
    var buf = [];

    while (tok = this.nextToken()) {
      if (tok.type === lexer.TOKEN_DATA) {
        var data = tok.value;
        var nextToken = this.peekToken();
        var nextVal = nextToken && nextToken.value; // If the last token has "-" we need to trim the
        // leading whitespace of the data. This is marked with
        // the `dropLeadingWhitespace` variable.

        if (this.dropLeadingWhitespace) {
          // TODO: this could be optimized (don't use regex)
          data = data.replace(/^\s*/, '');
          this.dropLeadingWhitespace = false;
        } // Same for the succeeding block start token


        if (nextToken && (nextToken.type === lexer.TOKEN_BLOCK_START && nextVal.charAt(nextVal.length - 1) === '-' || nextToken.type === lexer.TOKEN_VARIABLE_START && nextVal.charAt(this.tokens.tags.VARIABLE_START.length) === '-' || nextToken.type === lexer.TOKEN_COMMENT && nextVal.charAt(this.tokens.tags.COMMENT_START.length) === '-')) {
          // TODO: this could be optimized (don't use regex)
          data = data.replace(/\s*$/, '');
        }

        buf.push(new nodes.Output(tok.lineno, tok.colno, [new nodes.TemplateData(tok.lineno, tok.colno, data)]));
      } else if (tok.type === lexer.TOKEN_BLOCK_START) {
        this.dropLeadingWhitespace = false;
        var n = this.parseStatement();

        if (!n) {
          break;
        }

        buf.push(n);
      } else if (tok.type === lexer.TOKEN_VARIABLE_START) {
        var e = this.parseExpression();
        this.dropLeadingWhitespace = false;
        this.advanceAfterVariableEnd();
        buf.push(new nodes.Output(tok.lineno, tok.colno, [e]));
      } else if (tok.type === lexer.TOKEN_COMMENT) {
        this.dropLeadingWhitespace = tok.value.charAt(tok.value.length - this.tokens.tags.COMMENT_END.length - 1) === '-';
      } else {
        // Ignore comments, otherwise this should be an error
        this.fail('Unexpected token at top-level: ' + tok.type, tok.lineno, tok.colno);
      }
    }

    return buf;
  };

  _proto.parse = function parse() {
    return new nodes.NodeList(0, 0, this.parseNodes());
  };

  _proto.parseAsRoot = function parseAsRoot() {
    return new nodes.Root(0, 0, this.parseNodes());
  };

  return Parser;
}(Obj); // var util = require('util');
// var l = lexer.lex('{%- if x -%}\n hello {% endif %}');
// var t;
// while((t = l.nextToken())) {
//     console.log(util.inspect(t));
// }
// var p = new Parser(lexer.lex('hello {% filter title %}' +
//                              'Hello madam how are you' +
//                              '{% endfilter %}'));
// var n = p.parseAsRoot();
// nodes.printNodes(n);


module.exports = {
  parse: function parse(src, extensions, opts) {
    var p = new Parser(lexer.lex(src, opts));

    if (extensions !== undefined) {
      p.extensions = extensions;
    }

    return p.parseAsRoot();
  },
  Parser: Parser
};

/***/ }),
/* 9 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var lib = __webpack_require__(0);

var whitespaceChars = " \n\t\r\xA0";
var delimChars = '()[]{}%*-+~/#,:|.<>=!';
var intChars = '0123456789';
var BLOCK_START = '{%';
var BLOCK_END = '%}';
var VARIABLE_START = '{{';
var VARIABLE_END = '}}';
var COMMENT_START = '{#';
var COMMENT_END = '#}';
var TOKEN_STRING = 'string';
var TOKEN_WHITESPACE = 'whitespace';
var TOKEN_DATA = 'data';
var TOKEN_BLOCK_START = 'block-start';
var TOKEN_BLOCK_END = 'block-end';
var TOKEN_VARIABLE_START = 'variable-start';
var TOKEN_VARIABLE_END = 'variable-end';
var TOKEN_COMMENT = 'comment';
var TOKEN_LEFT_PAREN = 'left-paren';
var TOKEN_RIGHT_PAREN = 'right-paren';
var TOKEN_LEFT_BRACKET = 'left-bracket';
var TOKEN_RIGHT_BRACKET = 'right-bracket';
var TOKEN_LEFT_CURLY = 'left-curly';
var TOKEN_RIGHT_CURLY = 'right-curly';
var TOKEN_OPERATOR = 'operator';
var TOKEN_COMMA = 'comma';
var TOKEN_COLON = 'colon';
var TOKEN_TILDE = 'tilde';
var TOKEN_PIPE = 'pipe';
var TOKEN_INT = 'int';
var TOKEN_FLOAT = 'float';
var TOKEN_BOOLEAN = 'boolean';
var TOKEN_NONE = 'none';
var TOKEN_SYMBOL = 'symbol';
var TOKEN_SPECIAL = 'special';
var TOKEN_REGEX = 'regex';

function token(type, value, lineno, colno) {
  return {
    type: type,
    value: value,
    lineno: lineno,
    colno: colno
  };
}

var Tokenizer = /*#__PURE__*/function () {
  function Tokenizer(str, opts) {
    this.str = str;
    this.index = 0;
    this.len = str.length;
    this.lineno = 0;
    this.colno = 0;
    this.in_code = false;
    opts = opts || {};
    var tags = opts.tags || {};
    this.tags = {
      BLOCK_START: tags.blockStart || BLOCK_START,
      BLOCK_END: tags.blockEnd || BLOCK_END,
      VARIABLE_START: tags.variableStart || VARIABLE_START,
      VARIABLE_END: tags.variableEnd || VARIABLE_END,
      COMMENT_START: tags.commentStart || COMMENT_START,
      COMMENT_END: tags.commentEnd || COMMENT_END
    };
    this.trimBlocks = !!opts.trimBlocks;
    this.lstripBlocks = !!opts.lstripBlocks;
  }

  var _proto = Tokenizer.prototype;

  _proto.nextToken = function nextToken() {
    var lineno = this.lineno;
    var colno = this.colno;
    var tok;

    if (this.in_code) {
      // Otherwise, if we are in a block parse it as code
      var cur = this.current();

      if (this.isFinished()) {
        // We have nothing else to parse
        return null;
      } else if (cur === '"' || cur === '\'') {
        // We've hit a string
        return token(TOKEN_STRING, this._parseString(cur), lineno, colno);
      } else if (tok = this._extract(whitespaceChars)) {
        // We hit some whitespace
        return token(TOKEN_WHITESPACE, tok, lineno, colno);
      } else if ((tok = this._extractString(this.tags.BLOCK_END)) || (tok = this._extractString('-' + this.tags.BLOCK_END))) {
        // Special check for the block end tag
        //
        // It is a requirement that start and end tags are composed of
        // delimiter characters (%{}[] etc), and our code always
        // breaks on delimiters so we can assume the token parsing
        // doesn't consume these elsewhere
        this.in_code = false;

        if (this.trimBlocks) {
          cur = this.current();

          if (cur === '\n') {
            // Skip newline
            this.forward();
          } else if (cur === '\r') {
            // Skip CRLF newline
            this.forward();
            cur = this.current();

            if (cur === '\n') {
              this.forward();
            } else {
              // Was not a CRLF, so go back
              this.back();
            }
          }
        }

        return token(TOKEN_BLOCK_END, tok, lineno, colno);
      } else if ((tok = this._extractString(this.tags.VARIABLE_END)) || (tok = this._extractString('-' + this.tags.VARIABLE_END))) {
        // Special check for variable end tag (see above)
        this.in_code = false;
        return token(TOKEN_VARIABLE_END, tok, lineno, colno);
      } else if (cur === 'r' && this.str.charAt(this.index + 1) === '/') {
        // Skip past 'r/'.
        this.forwardN(2); // Extract until the end of the regex -- / ends it, \/ does not.

        var regexBody = '';

        while (!this.isFinished()) {
          if (this.current() === '/' && this.previous() !== '\\') {
            this.forward();
            break;
          } else {
            regexBody += this.current();
            this.forward();
          }
        } // Check for flags.
        // The possible flags are according to https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/RegExp)


        var POSSIBLE_FLAGS = ['g', 'i', 'm', 'y'];
        var regexFlags = '';

        while (!this.isFinished()) {
          var isCurrentAFlag = POSSIBLE_FLAGS.indexOf(this.current()) !== -1;

          if (isCurrentAFlag) {
            regexFlags += this.current();
            this.forward();
          } else {
            break;
          }
        }

        return token(TOKEN_REGEX, {
          body: regexBody,
          flags: regexFlags
        }, lineno, colno);
      } else if (delimChars.indexOf(cur) !== -1) {
        // We've hit a delimiter (a special char like a bracket)
        this.forward();
        var complexOps = ['==', '===', '!=', '!==', '<=', '>=', '//', '**'];
        var curComplex = cur + this.current();
        var type;

        if (lib.indexOf(complexOps, curComplex) !== -1) {
          this.forward();
          cur = curComplex; // See if this is a strict equality/inequality comparator

          if (lib.indexOf(complexOps, curComplex + this.current()) !== -1) {
            cur = curComplex + this.current();
            this.forward();
          }
        }

        switch (cur) {
          case '(':
            type = TOKEN_LEFT_PAREN;
            break;

          case ')':
            type = TOKEN_RIGHT_PAREN;
            break;

          case '[':
            type = TOKEN_LEFT_BRACKET;
            break;

          case ']':
            type = TOKEN_RIGHT_BRACKET;
            break;

          case '{':
            type = TOKEN_LEFT_CURLY;
            break;

          case '}':
            type = TOKEN_RIGHT_CURLY;
            break;

          case ',':
            type = TOKEN_COMMA;
            break;

          case ':':
            type = TOKEN_COLON;
            break;

          case '~':
            type = TOKEN_TILDE;
            break;

          case '|':
            type = TOKEN_PIPE;
            break;

          default:
            type = TOKEN_OPERATOR;
        }

        return token(type, cur, lineno, colno);
      } else {
        // We are not at whitespace or a delimiter, so extract the
        // text and parse it
        tok = this._extractUntil(whitespaceChars + delimChars);

        if (tok.match(/^[-+]?[0-9]+$/)) {
          if (this.current() === '.') {
            this.forward();

            var dec = this._extract(intChars);

            return token(TOKEN_FLOAT, tok + '.' + dec, lineno, colno);
          } else {
            return token(TOKEN_INT, tok, lineno, colno);
          }
        } else if (tok.match(/^(true|false)$/)) {
          return token(TOKEN_BOOLEAN, tok, lineno, colno);
        } else if (tok === 'none') {
          return token(TOKEN_NONE, tok, lineno, colno);
          /*
           * Added to make the test `null is null` evaluate truthily.
           * Otherwise, Nunjucks will look up null in the context and
           * return `undefined`, which is not what we want. This *may* have
           * consequences is someone is using null in their templates as a
           * variable.
           */
        } else if (tok === 'null') {
          return token(TOKEN_NONE, tok, lineno, colno);
        } else if (tok) {
          return token(TOKEN_SYMBOL, tok, lineno, colno);
        } else {
          throw new Error('Unexpected value while parsing: ' + tok);
        }
      }
    } else {
      // Parse out the template text, breaking on tag
      // delimiters because we need to look for block/variable start
      // tags (don't use the full delimChars for optimization)
      var beginChars = this.tags.BLOCK_START.charAt(0) + this.tags.VARIABLE_START.charAt(0) + this.tags.COMMENT_START.charAt(0) + this.tags.COMMENT_END.charAt(0);

      if (this.isFinished()) {
        return null;
      } else if ((tok = this._extractString(this.tags.BLOCK_START + '-')) || (tok = this._extractString(this.tags.BLOCK_START))) {
        this.in_code = true;
        return token(TOKEN_BLOCK_START, tok, lineno, colno);
      } else if ((tok = this._extractString(this.tags.VARIABLE_START + '-')) || (tok = this._extractString(this.tags.VARIABLE_START))) {
        this.in_code = true;
        return token(TOKEN_VARIABLE_START, tok, lineno, colno);
      } else {
        tok = '';
        var data;
        var inComment = false;

        if (this._matches(this.tags.COMMENT_START)) {
          inComment = true;
          tok = this._extractString(this.tags.COMMENT_START);
        } // Continually consume text, breaking on the tag delimiter
        // characters and checking to see if it's a start tag.
        //
        // We could hit the end of the template in the middle of
        // our looping, so check for the null return value from
        // _extractUntil


        while ((data = this._extractUntil(beginChars)) !== null) {
          tok += data;

          if ((this._matches(this.tags.BLOCK_START) || this._matches(this.tags.VARIABLE_START) || this._matches(this.tags.COMMENT_START)) && !inComment) {
            if (this.lstripBlocks && this._matches(this.tags.BLOCK_START) && this.colno > 0 && this.colno <= tok.length) {
              var lastLine = tok.slice(-this.colno);

              if (/^\s+$/.test(lastLine)) {
                // Remove block leading whitespace from beginning of the string
                tok = tok.slice(0, -this.colno);

                if (!tok.length) {
                  // All data removed, collapse to avoid unnecessary nodes
                  // by returning next token (block start)
                  return this.nextToken();
                }
              }
            } // If it is a start tag, stop looping


            break;
          } else if (this._matches(this.tags.COMMENT_END)) {
            if (!inComment) {
              throw new Error('unexpected end of comment');
            }

            tok += this._extractString(this.tags.COMMENT_END);
            break;
          } else {
            // It does not match any tag, so add the character and
            // carry on
            tok += this.current();
            this.forward();
          }
        }

        if (data === null && inComment) {
          throw new Error('expected end of comment, got end of file');
        }

        return token(inComment ? TOKEN_COMMENT : TOKEN_DATA, tok, lineno, colno);
      }
    }
  };

  _proto._parseString = function _parseString(delimiter) {
    this.forward();
    var str = '';

    while (!this.isFinished() && this.current() !== delimiter) {
      var cur = this.current();

      if (cur === '\\') {
        this.forward();

        switch (this.current()) {
          case 'n':
            str += '\n';
            break;

          case 't':
            str += '\t';
            break;

          case 'r':
            str += '\r';
            break;

          default:
            str += this.current();
        }

        this.forward();
      } else {
        str += cur;
        this.forward();
      }
    }

    this.forward();
    return str;
  };

  _proto._matches = function _matches(str) {
    if (this.index + str.length > this.len) {
      return null;
    }

    var m = this.str.slice(this.index, this.index + str.length);
    return m === str;
  };

  _proto._extractString = function _extractString(str) {
    if (this._matches(str)) {
      this.forwardN(str.length);
      return str;
    }

    return null;
  };

  _proto._extractUntil = function _extractUntil(charString) {
    // Extract all non-matching chars, with the default matching set
    // to everything
    return this._extractMatching(true, charString || '');
  };

  _proto._extract = function _extract(charString) {
    // Extract all matching chars (no default, so charString must be
    // explicit)
    return this._extractMatching(false, charString);
  };

  _proto._extractMatching = function _extractMatching(breakOnMatch, charString) {
    // Pull out characters until a breaking char is hit.
    // If breakOnMatch is false, a non-matching char stops it.
    // If breakOnMatch is true, a matching char stops it.
    if (this.isFinished()) {
      return null;
    }

    var first = charString.indexOf(this.current()); // Only proceed if the first character doesn't meet our condition

    if (breakOnMatch && first === -1 || !breakOnMatch && first !== -1) {
      var t = this.current();
      this.forward(); // And pull out all the chars one at a time until we hit a
      // breaking char

      var idx = charString.indexOf(this.current());

      while ((breakOnMatch && idx === -1 || !breakOnMatch && idx !== -1) && !this.isFinished()) {
        t += this.current();
        this.forward();
        idx = charString.indexOf(this.current());
      }

      return t;
    }

    return '';
  };

  _proto._extractRegex = function _extractRegex(regex) {
    var matches = this.currentStr().match(regex);

    if (!matches) {
      return null;
    } // Move forward whatever was matched


    this.forwardN(matches[0].length);
    return matches;
  };

  _proto.isFinished = function isFinished() {
    return this.index >= this.len;
  };

  _proto.forwardN = function forwardN(n) {
    for (var i = 0; i < n; i++) {
      this.forward();
    }
  };

  _proto.forward = function forward() {
    this.index++;

    if (this.previous() === '\n') {
      this.lineno++;
      this.colno = 0;
    } else {
      this.colno++;
    }
  };

  _proto.backN = function backN(n) {
    for (var i = 0; i < n; i++) {
      this.back();
    }
  };

  _proto.back = function back() {
    this.index--;

    if (this.current() === '\n') {
      this.lineno--;
      var idx = this.src.lastIndexOf('\n', this.index - 1);

      if (idx === -1) {
        this.colno = this.index;
      } else {
        this.colno = this.index - idx;
      }
    } else {
      this.colno--;
    }
  } // current returns current character
  ;

  _proto.current = function current() {
    if (!this.isFinished()) {
      return this.str.charAt(this.index);
    }

    return '';
  } // currentStr returns what's left of the unparsed string
  ;

  _proto.currentStr = function currentStr() {
    if (!this.isFinished()) {
      return this.str.substr(this.index);
    }

    return '';
  };

  _proto.previous = function previous() {
    return this.str.charAt(this.index - 1);
  };

  return Tokenizer;
}();

module.exports = {
  lex: function lex(src, opts) {
    return new Tokenizer(src, opts);
  },
  TOKEN_STRING: TOKEN_STRING,
  TOKEN_WHITESPACE: TOKEN_WHITESPACE,
  TOKEN_DATA: TOKEN_DATA,
  TOKEN_BLOCK_START: TOKEN_BLOCK_START,
  TOKEN_BLOCK_END: TOKEN_BLOCK_END,
  TOKEN_VARIABLE_START: TOKEN_VARIABLE_START,
  TOKEN_VARIABLE_END: TOKEN_VARIABLE_END,
  TOKEN_COMMENT: TOKEN_COMMENT,
  TOKEN_LEFT_PAREN: TOKEN_LEFT_PAREN,
  TOKEN_RIGHT_PAREN: TOKEN_RIGHT_PAREN,
  TOKEN_LEFT_BRACKET: TOKEN_LEFT_BRACKET,
  TOKEN_RIGHT_BRACKET: TOKEN_RIGHT_BRACKET,
  TOKEN_LEFT_CURLY: TOKEN_LEFT_CURLY,
  TOKEN_RIGHT_CURLY: TOKEN_RIGHT_CURLY,
  TOKEN_OPERATOR: TOKEN_OPERATOR,
  TOKEN_COMMA: TOKEN_COMMA,
  TOKEN_COLON: TOKEN_COLON,
  TOKEN_TILDE: TOKEN_TILDE,
  TOKEN_PIPE: TOKEN_PIPE,
  TOKEN_INT: TOKEN_INT,
  TOKEN_FLOAT: TOKEN_FLOAT,
  TOKEN_BOOLEAN: TOKEN_BOOLEAN,
  TOKEN_NONE: TOKEN_NONE,
  TOKEN_SYMBOL: TOKEN_SYMBOL,
  TOKEN_SPECIAL: TOKEN_SPECIAL,
  TOKEN_REGEX: TOKEN_REGEX
};

/***/ }),
/* 10 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

var Loader = __webpack_require__(6);

var _require = __webpack_require__(19),
    PrecompiledLoader = _require.PrecompiledLoader;

var WebLoader = /*#__PURE__*/function (_Loader) {
  _inheritsLoose(WebLoader, _Loader);

  function WebLoader(baseURL, opts) {
    var _this;

    _this = _Loader.call(this) || this;
    _this.baseURL = baseURL || '.';
    opts = opts || {}; // By default, the cache is turned off because there's no way
    // to "watch" templates over HTTP, so they are re-downloaded
    // and compiled each time. (Remember, PRECOMPILE YOUR
    // TEMPLATES in production!)

    _this.useCache = !!opts.useCache; // We default `async` to false so that the simple synchronous
    // API can be used when you aren't doing anything async in
    // your templates (which is most of the time). This performs a
    // sync ajax request, but that's ok because it should *only*
    // happen in development. PRECOMPILE YOUR TEMPLATES.

    _this.async = !!opts.async;
    return _this;
  }

  var _proto = WebLoader.prototype;

  _proto.resolve = function resolve(from, to) {
    throw new Error('relative templates not support in the browser yet');
  };

  _proto.getSource = function getSource(name, cb) {
    var _this2 = this;

    var useCache = this.useCache;
    var result;
    this.fetch(this.baseURL + '/' + name, function (err, src) {
      if (err) {
        if (cb) {
          cb(err.content);
        } else if (err.status === 404) {
          result = null;
        } else {
          throw err.content;
        }
      } else {
        result = {
          src: src,
          path: name,
          noCache: !useCache
        };

        _this2.emit('load', name, result);

        if (cb) {
          cb(null, result);
        }
      }
    }); // if this WebLoader isn't running asynchronously, the
    // fetch above would actually run sync and we'll have a
    // result here

    return result;
  };

  _proto.fetch = function fetch(url, cb) {
    // Only in the browser please
    if (typeof window === 'undefined') {
      throw new Error('WebLoader can only by used in a browser');
    }

    var ajax = new XMLHttpRequest();
    var loading = true;

    ajax.onreadystatechange = function () {
      if (ajax.readyState === 4 && loading) {
        loading = false;

        if (ajax.status === 0 || ajax.status === 200) {
          cb(null, ajax.responseText);
        } else {
          cb({
            status: ajax.status,
            content: ajax.responseText
          });
        }
      }
    };

    url += (url.indexOf('?') === -1 ? '?' : '&') + 's=' + new Date().getTime();
    ajax.open('GET', url, this.async);
    ajax.send();
  };

  return WebLoader;
}(Loader);

module.exports = {
  WebLoader: WebLoader,
  PrecompiledLoader: PrecompiledLoader
};

/***/ }),
/* 11 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var lib = __webpack_require__(0);

var _require = __webpack_require__(7),
    Environment = _require.Environment,
    Template = _require.Template;

var Loader = __webpack_require__(6);

var loaders = __webpack_require__(10);

var precompile = __webpack_require__(23);

var compiler = __webpack_require__(5);

var parser = __webpack_require__(8);

var lexer = __webpack_require__(9);

var runtime = __webpack_require__(2);

var nodes = __webpack_require__(3);

var installJinjaCompat = __webpack_require__(25); // A single instance of an environment, since this is so commonly used


var e;

function configure(templatesPath, opts) {
  opts = opts || {};

  if (lib.isObject(templatesPath)) {
    opts = templatesPath;
    templatesPath = null;
  }

  var TemplateLoader;

  if (loaders.FileSystemLoader) {
    TemplateLoader = new loaders.FileSystemLoader(templatesPath, {
      watch: opts.watch,
      noCache: opts.noCache
    });
  } else if (loaders.WebLoader) {
    TemplateLoader = new loaders.WebLoader(templatesPath, {
      useCache: opts.web && opts.web.useCache,
      async: opts.web && opts.web.async
    });
  }

  e = new Environment(TemplateLoader, opts);

  if (opts && opts.express) {
    e.express(opts.express);
  }

  return e;
}

module.exports = {
  Environment: Environment,
  Template: Template,
  Loader: Loader,
  FileSystemLoader: loaders.FileSystemLoader,
  NodeResolveLoader: loaders.NodeResolveLoader,
  PrecompiledLoader: loaders.PrecompiledLoader,
  WebLoader: loaders.WebLoader,
  compiler: compiler,
  parser: parser,
  lexer: lexer,
  runtime: runtime,
  lib: lib,
  nodes: nodes,
  installJinjaCompat: installJinjaCompat,
  configure: configure,
  reset: function reset() {
    e = undefined;
  },
  compile: function compile(src, env, path, eagerCompile) {
    if (!e) {
      configure();
    }

    return new Template(src, env, path, eagerCompile);
  },
  render: function render(name, ctx, cb) {
    if (!e) {
      configure();
    }

    return e.render(name, ctx, cb);
  },
  renderString: function renderString(src, ctx, cb) {
    if (!e) {
      configure();
    }

    return e.renderString(src, ctx, cb);
  },
  precompile: precompile ? precompile.precompile : undefined,
  precompileString: precompile ? precompile.precompileString : undefined
};

/***/ }),
/* 12 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


// rawAsap provides everything we need except exception management.
var rawAsap = __webpack_require__(13);
// RawTasks are recycled to reduce GC churn.
var freeTasks = [];
// We queue errors to ensure they are thrown in right order (FIFO).
// Array-as-queue is good enough here, since we are just dealing with exceptions.
var pendingErrors = [];
var requestErrorThrow = rawAsap.makeRequestCallFromTimer(throwFirstError);

function throwFirstError() {
    if (pendingErrors.length) {
        throw pendingErrors.shift();
    }
}

/**
 * Calls a task as soon as possible after returning, in its own event, with priority
 * over other events like animation, reflow, and repaint. An error thrown from an
 * event will not interrupt, nor even substantially slow down the processing of
 * other events, but will be rather postponed to a lower priority event.
 * @param {{call}} task A callable object, typically a function that takes no
 * arguments.
 */
module.exports = asap;
function asap(task) {
    var rawTask;
    if (freeTasks.length) {
        rawTask = freeTasks.pop();
    } else {
        rawTask = new RawTask();
    }
    rawTask.task = task;
    rawAsap(rawTask);
}

// We wrap tasks with recyclable task objects.  A task object implements
// `call`, just like a function.
function RawTask() {
    this.task = null;
}

// The sole purpose of wrapping the task is to catch the exception and recycle
// the task object after its single use.
RawTask.prototype.call = function () {
    try {
        this.task.call();
    } catch (error) {
        if (asap.onerror) {
            // This hook exists purely for testing purposes.
            // Its name will be periodically randomized to break any code that
            // depends on its existence.
            asap.onerror(error);
        } else {
            // In a web browser, exceptions are not fatal. However, to avoid
            // slowing down the queue of pending tasks, we rethrow the error in a
            // lower priority turn.
            pendingErrors.push(error);
            requestErrorThrow();
        }
    } finally {
        this.task = null;
        freeTasks[freeTasks.length] = this;
    }
};


/***/ }),
/* 13 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(global) {

// Use the fastest means possible to execute a task in its own turn, with
// priority over other events including IO, animation, reflow, and redraw
// events in browsers.
//
// An exception thrown by a task will permanently interrupt the processing of
// subsequent tasks. The higher level `asap` function ensures that if an
// exception is thrown by a task, that the task queue will continue flushing as
// soon as possible, but if you use `rawAsap` directly, you are responsible to
// either ensure that no exceptions are thrown from your task, or to manually
// call `rawAsap.requestFlush` if an exception is thrown.
module.exports = rawAsap;
function rawAsap(task) {
    if (!queue.length) {
        requestFlush();
        flushing = true;
    }
    // Equivalent to push, but avoids a function call.
    queue[queue.length] = task;
}

var queue = [];
// Once a flush has been requested, no further calls to `requestFlush` are
// necessary until the next `flush` completes.
var flushing = false;
// `requestFlush` is an implementation-specific method that attempts to kick
// off a `flush` event as quickly as possible. `flush` will attempt to exhaust
// the event queue before yielding to the browser's own event loop.
var requestFlush;
// The position of the next task to execute in the task queue. This is
// preserved between calls to `flush` so that it can be resumed if
// a task throws an exception.
var index = 0;
// If a task schedules additional tasks recursively, the task queue can grow
// unbounded. To prevent memory exhaustion, the task queue will periodically
// truncate already-completed tasks.
var capacity = 1024;

// The flush function processes all tasks that have been scheduled with
// `rawAsap` unless and until one of those tasks throws an exception.
// If a task throws an exception, `flush` ensures that its state will remain
// consistent and will resume where it left off when called again.
// However, `flush` does not make any arrangements to be called again if an
// exception is thrown.
function flush() {
    while (index < queue.length) {
        var currentIndex = index;
        // Advance the index before calling the task. This ensures that we will
        // begin flushing on the next task the task throws an error.
        index = index + 1;
        queue[currentIndex].call();
        // Prevent leaking memory for long chains of recursive calls to `asap`.
        // If we call `asap` within tasks scheduled by `asap`, the queue will
        // grow, but to avoid an O(n) walk for every task we execute, we don't
        // shift tasks off the queue after they have been executed.
        // Instead, we periodically shift 1024 tasks off the queue.
        if (index > capacity) {
            // Manually shift all values starting at the index back to the
            // beginning of the queue.
            for (var scan = 0, newLength = queue.length - index; scan < newLength; scan++) {
                queue[scan] = queue[scan + index];
            }
            queue.length -= index;
            index = 0;
        }
    }
    queue.length = 0;
    index = 0;
    flushing = false;
}

// `requestFlush` is implemented using a strategy based on data collected from
// every available SauceLabs Selenium web driver worker at time of writing.
// https://docs.google.com/spreadsheets/d/1mG-5UYGup5qxGdEMWkhP6BWCz053NUb2E1QoUTU16uA/edit#gid=783724593

// Safari 6 and 6.1 for desktop, iPad, and iPhone are the only browsers that
// have WebKitMutationObserver but not un-prefixed MutationObserver.
// Must use `global` or `self` instead of `window` to work in both frames and web
// workers. `global` is a provision of Browserify, Mr, Mrs, or Mop.

/* globals self */
var scope = typeof global !== "undefined" ? global : self;
var BrowserMutationObserver = scope.MutationObserver || scope.WebKitMutationObserver;

// MutationObservers are desirable because they have high priority and work
// reliably everywhere they are implemented.
// They are implemented in all modern browsers.
//
// - Android 4-4.3
// - Chrome 26-34
// - Firefox 14-29
// - Internet Explorer 11
// - iPad Safari 6-7.1
// - iPhone Safari 7-7.1
// - Safari 6-7
if (typeof BrowserMutationObserver === "function") {
    requestFlush = makeRequestCallFromMutationObserver(flush);

// MessageChannels are desirable because they give direct access to the HTML
// task queue, are implemented in Internet Explorer 10, Safari 5.0-1, and Opera
// 11-12, and in web workers in many engines.
// Although message channels yield to any queued rendering and IO tasks, they
// would be better than imposing the 4ms delay of timers.
// However, they do not work reliably in Internet Explorer or Safari.

// Internet Explorer 10 is the only browser that has setImmediate but does
// not have MutationObservers.
// Although setImmediate yields to the browser's renderer, it would be
// preferrable to falling back to setTimeout since it does not have
// the minimum 4ms penalty.
// Unfortunately there appears to be a bug in Internet Explorer 10 Mobile (and
// Desktop to a lesser extent) that renders both setImmediate and
// MessageChannel useless for the purposes of ASAP.
// https://github.com/kriskowal/q/issues/396

// Timers are implemented universally.
// We fall back to timers in workers in most engines, and in foreground
// contexts in the following browsers.
// However, note that even this simple case requires nuances to operate in a
// broad spectrum of browsers.
//
// - Firefox 3-13
// - Internet Explorer 6-9
// - iPad Safari 4.3
// - Lynx 2.8.7
} else {
    requestFlush = makeRequestCallFromTimer(flush);
}

// `requestFlush` requests that the high priority event queue be flushed as
// soon as possible.
// This is useful to prevent an error thrown in a task from stalling the event
// queue if the exception handled by Node.js’s
// `process.on("uncaughtException")` or by a domain.
rawAsap.requestFlush = requestFlush;

// To request a high priority event, we induce a mutation observer by toggling
// the text of a text node between "1" and "-1".
function makeRequestCallFromMutationObserver(callback) {
    var toggle = 1;
    var observer = new BrowserMutationObserver(callback);
    var node = document.createTextNode("");
    observer.observe(node, {characterData: true});
    return function requestCall() {
        toggle = -toggle;
        node.data = toggle;
    };
}

// The message channel technique was discovered by Malte Ubl and was the
// original foundation for this library.
// http://www.nonblocking.io/2011/06/windownexttick.html

// Safari 6.0.5 (at least) intermittently fails to create message ports on a
// page's first load. Thankfully, this version of Safari supports
// MutationObservers, so we don't need to fall back in that case.

// function makeRequestCallFromMessageChannel(callback) {
//     var channel = new MessageChannel();
//     channel.port1.onmessage = callback;
//     return function requestCall() {
//         channel.port2.postMessage(0);
//     };
// }

// For reasons explained above, we are also unable to use `setImmediate`
// under any circumstances.
// Even if we were, there is another bug in Internet Explorer 10.
// It is not sufficient to assign `setImmediate` to `requestFlush` because
// `setImmediate` must be called *by name* and therefore must be wrapped in a
// closure.
// Never forget.

// function makeRequestCallFromSetImmediate(callback) {
//     return function requestCall() {
//         setImmediate(callback);
//     };
// }

// Safari 6.0 has a problem where timers will get lost while the user is
// scrolling. This problem does not impact ASAP because Safari 6.0 supports
// mutation observers, so that implementation is used instead.
// However, if we ever elect to use timers in Safari, the prevalent work-around
// is to add a scroll event listener that calls for a flush.

// `setTimeout` does not call the passed callback if the delay is less than
// approximately 7 in web workers in Firefox 8 through 18, and sometimes not
// even then.

function makeRequestCallFromTimer(callback) {
    return function requestCall() {
        // We dispatch a timeout with a specified delay of 0 for engines that
        // can reliably accommodate that request. This will usually be snapped
        // to a 4 milisecond delay, but once we're flushing, there's no delay
        // between events.
        var timeoutHandle = setTimeout(handleTimer, 0);
        // However, since this timer gets frequently dropped in Firefox
        // workers, we enlist an interval handle that will try to fire
        // an event 20 times per second until it succeeds.
        var intervalHandle = setInterval(handleTimer, 50);

        function handleTimer() {
            // Whichever timer succeeds will cancel both timers and
            // execute the callback.
            clearTimeout(timeoutHandle);
            clearInterval(intervalHandle);
            callback();
        }
    };
}

// This is for `asap.js` only.
// Its name will be periodically randomized to break any code that depends on
// its existence.
rawAsap.makeRequestCallFromTimer = makeRequestCallFromTimer;

// ASAP was originally a nextTick shim included in Q. This was factored out
// into this ASAP package. It was later adapted to RSVP which made further
// amendments. These decisions, particularly to marginalize MessageChannel and
// to capture the MutationObserver implementation in a closure, were integrated
// back into ASAP proper.
// https://github.com/tildeio/rsvp.js/blob/cddf7232546a9cf858524b75cde6f9edf72620a7/lib/rsvp/asap.js

/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(14)))

/***/ }),
/* 14 */
/***/ (function(module, exports) {

var g;

// This works in non-strict mode
g = (function() {
	return this;
})();

try {
	// This works if eval is allowed (see CSP)
	g = g || Function("return this")() || (1,eval)("this");
} catch(e) {
	// This works if the window reference is available
	if(typeof window === "object")
		g = window;
}

// g can still be undefined, but nothing to do about it...
// We return undefined, instead of nothing here, so it's
// easier to handle this case. if(!global) { ...}

module.exports = g;


/***/ }),
/* 15 */
/***/ (function(module, exports, __webpack_require__) {

var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;// MIT license (by Elan Shanker).
(function(globals) {
  'use strict';

  var executeSync = function(){
    var args = Array.prototype.slice.call(arguments);
    if (typeof args[0] === 'function'){
      args[0].apply(null, args.splice(1));
    }
  };

  var executeAsync = function(fn){
    if (typeof setImmediate === 'function') {
      setImmediate(fn);
    } else if (typeof process !== 'undefined' && process.nextTick) {
      process.nextTick(fn);
    } else {
      setTimeout(fn, 0);
    }
  };

  var makeIterator = function (tasks) {
    var makeCallback = function (index) {
      var fn = function () {
        if (tasks.length) {
          tasks[index].apply(null, arguments);
        }
        return fn.next();
      };
      fn.next = function () {
        return (index < tasks.length - 1) ? makeCallback(index + 1): null;
      };
      return fn;
    };
    return makeCallback(0);
  };
  
  var _isArray = Array.isArray || function(maybeArray){
    return Object.prototype.toString.call(maybeArray) === '[object Array]';
  };

  var waterfall = function (tasks, callback, forceAsync) {
    var nextTick = forceAsync ? executeAsync : executeSync;
    callback = callback || function () {};
    if (!_isArray(tasks)) {
      var err = new Error('First argument to waterfall must be an array of functions');
      return callback(err);
    }
    if (!tasks.length) {
      return callback();
    }
    var wrapIterator = function (iterator) {
      return function (err) {
        if (err) {
          callback.apply(null, arguments);
          callback = function () {};
        } else {
          var args = Array.prototype.slice.call(arguments, 1);
          var next = iterator.next();
          if (next) {
            args.push(wrapIterator(next));
          } else {
            args.push(callback);
          }
          nextTick(function () {
            iterator.apply(null, args);
          });
        }
      };
    };
    wrapIterator(makeIterator(tasks))();
  };

  if (true) {
    !(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_RESULT__ = (function () {
      return waterfall;
    }).apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__),
				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__)); // RequireJS
  } else if (typeof module !== 'undefined' && module.exports) {
    module.exports = waterfall; // CommonJS
  } else {
    globals.waterfall = waterfall; // <script>
  }
})(this);


/***/ }),
/* 16 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
// Copyright Joyent, Inc. and other Node 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.



var R = typeof Reflect === 'object' ? Reflect : null
var ReflectApply = R && typeof R.apply === 'function'
  ? R.apply
  : function ReflectApply(target, receiver, args) {
    return Function.prototype.apply.call(target, receiver, args);
  }

var ReflectOwnKeys
if (R && typeof R.ownKeys === 'function') {
  ReflectOwnKeys = R.ownKeys
} else if (Object.getOwnPropertySymbols) {
  ReflectOwnKeys = function ReflectOwnKeys(target) {
    return Object.getOwnPropertyNames(target)
      .concat(Object.getOwnPropertySymbols(target));
  };
} else {
  ReflectOwnKeys = function ReflectOwnKeys(target) {
    return Object.getOwnPropertyNames(target);
  };
}

function ProcessEmitWarning(warning) {
  if (console && console.warn) console.warn(warning);
}

var NumberIsNaN = Number.isNaN || function NumberIsNaN(value) {
  return value !== value;
}

function EventEmitter() {
  EventEmitter.init.call(this);
}
module.exports = EventEmitter;
module.exports.once = once;

// Backwards-compat with node 0.10.x
EventEmitter.EventEmitter = EventEmitter;

EventEmitter.prototype._events = undefined;
EventEmitter.prototype._eventsCount = 0;
EventEmitter.prototype._maxListeners = undefined;

// By default EventEmitters will print a warning if more than 10 listeners are
// added to it. This is a useful default which helps finding memory leaks.
var defaultMaxListeners = 10;

function checkListener(listener) {
  if (typeof listener !== 'function') {
    throw new TypeError('The "listener" argument must be of type Function. Received type ' + typeof listener);
  }
}

Object.defineProperty(EventEmitter, 'defaultMaxListeners', {
  enumerable: true,
  get: function() {
    return defaultMaxListeners;
  },
  set: function(arg) {
    if (typeof arg !== 'number' || arg < 0 || NumberIsNaN(arg)) {
      throw new RangeError('The value of "defaultMaxListeners" is out of range. It must be a non-negative number. Received ' + arg + '.');
    }
    defaultMaxListeners = arg;
  }
});

EventEmitter.init = function() {

  if (this._events === undefined ||
      this._events === Object.getPrototypeOf(this)._events) {
    this._events = Object.create(null);
    this._eventsCount = 0;
  }

  this._maxListeners = this._maxListeners || undefined;
};

// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {
  if (typeof n !== 'number' || n < 0 || NumberIsNaN(n)) {
    throw new RangeError('The value of "n" is out of range. It must be a non-negative number. Received ' + n + '.');
  }
  this._maxListeners = n;
  return this;
};

function _getMaxListeners(that) {
  if (that._maxListeners === undefined)
    return EventEmitter.defaultMaxListeners;
  return that._maxListeners;
}

EventEmitter.prototype.getMaxListeners = function getMaxListeners() {
  return _getMaxListeners(this);
};

EventEmitter.prototype.emit = function emit(type) {
  var args = [];
  for (var i = 1; i < arguments.length; i++) args.push(arguments[i]);
  var doError = (type === 'error');

  var events = this._events;
  if (events !== undefined)
    doError = (doError && events.error === undefined);
  else if (!doError)
    return false;

  // If there is no 'error' event listener then throw.
  if (doError) {
    var er;
    if (args.length > 0)
      er = args[0];
    if (er instanceof Error) {
      // Note: The comments on the `throw` lines are intentional, they show
      // up in Node's output if this results in an unhandled exception.
      throw er; // Unhandled 'error' event
    }
    // At least give some kind of context to the user
    var err = new Error('Unhandled error.' + (er ? ' (' + er.message + ')' : ''));
    err.context = er;
    throw err; // Unhandled 'error' event
  }

  var handler = events[type];

  if (handler === undefined)
    return false;

  if (typeof handler === 'function') {
    ReflectApply(handler, this, args);
  } else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      ReflectApply(listeners[i], this, args);
  }

  return true;
};

function _addListener(target, type, listener, prepend) {
  var m;
  var events;
  var existing;

  checkListener(listener);

  events = target._events;
  if (events === undefined) {
    events = target._events = Object.create(null);
    target._eventsCount = 0;
  } else {
    // To avoid recursion in the case that type === "newListener"! Before
    // adding it to the listeners, first emit "newListener".
    if (events.newListener !== undefined) {
      target.emit('newListener', type,
                  listener.listener ? listener.listener : listener);

      // Re-assign `events` because a newListener handler could have caused the
      // this._events to be assigned to a new object
      events = target._events;
    }
    existing = events[type];
  }

  if (existing === undefined) {
    // Optimize the case of one listener. Don't need the extra array object.
    existing = events[type] = listener;
    ++target._eventsCount;
  } else {
    if (typeof existing === 'function') {
      // Adding the second element, need to change to array.
      existing = events[type] =
        prepend ? [listener, existing] : [existing, listener];
      // If we've already got an array, just append.
    } else if (prepend) {
      existing.unshift(listener);
    } else {
      existing.push(listener);
    }

    // Check for listener leak
    m = _getMaxListeners(target);
    if (m > 0 && existing.length > m && !existing.warned) {
      existing.warned = true;
      // No error code for this since it is a Warning
      // eslint-disable-next-line no-restricted-syntax
      var w = new Error('Possible EventEmitter memory leak detected. ' +
                          existing.length + ' ' + String(type) + ' listeners ' +
                          'added. Use emitter.setMaxListeners() to ' +
                          'increase limit');
      w.name = 'MaxListenersExceededWarning';
      w.emitter = target;
      w.type = type;
      w.count = existing.length;
      ProcessEmitWarning(w);
    }
  }

  return target;
}

EventEmitter.prototype.addListener = function addListener(type, listener) {
  return _addListener(this, type, listener, false);
};

EventEmitter.prototype.on = EventEmitter.prototype.addListener;

EventEmitter.prototype.prependListener =
    function prependListener(type, listener) {
      return _addListener(this, type, listener, true);
    };

function onceWrapper() {
  if (!this.fired) {
    this.target.removeListener(this.type, this.wrapFn);
    this.fired = true;
    if (arguments.length === 0)
      return this.listener.call(this.target);
    return this.listener.apply(this.target, arguments);
  }
}

function _onceWrap(target, type, listener) {
  var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };
  var wrapped = onceWrapper.bind(state);
  wrapped.listener = listener;
  state.wrapFn = wrapped;
  return wrapped;
}

EventEmitter.prototype.once = function once(type, listener) {
  checkListener(listener);
  this.on(type, _onceWrap(this, type, listener));
  return this;
};

EventEmitter.prototype.prependOnceListener =
    function prependOnceListener(type, listener) {
      checkListener(listener);
      this.prependListener(type, _onceWrap(this, type, listener));
      return this;
    };

// Emits a 'removeListener' event if and only if the listener was removed.
EventEmitter.prototype.removeListener =
    function removeListener(type, listener) {
      var list, events, position, i, originalListener;

      checkListener(listener);

      events = this._events;
      if (events === undefined)
        return this;

      list = events[type];
      if (list === undefined)
        return this;

      if (list === listener || list.listener === listener) {
        if (--this._eventsCount === 0)
          this._events = Object.create(null);
        else {
          delete events[type];
          if (events.removeListener)
            this.emit('removeListener', type, list.listener || listener);
        }
      } else if (typeof list !== 'function') {
        position = -1;

        for (i = list.length - 1; i >= 0; i--) {
          if (list[i] === listener || list[i].listener === listener) {
            originalListener = list[i].listener;
            position = i;
            break;
          }
        }

        if (position < 0)
          return this;

        if (position === 0)
          list.shift();
        else {
          spliceOne(list, position);
        }

        if (list.length === 1)
          events[type] = list[0];

        if (events.removeListener !== undefined)
          this.emit('removeListener', type, originalListener || listener);
      }

      return this;
    };

EventEmitter.prototype.off = EventEmitter.prototype.removeListener;

EventEmitter.prototype.removeAllListeners =
    function removeAllListeners(type) {
      var listeners, events, i;

      events = this._events;
      if (events === undefined)
        return this;

      // not listening for removeListener, no need to emit
      if (events.removeListener === undefined) {
        if (arguments.length === 0) {
          this._events = Object.create(null);
          this._eventsCount = 0;
        } else if (events[type] !== undefined) {
          if (--this._eventsCount === 0)
            this._events = Object.create(null);
          else
            delete events[type];
        }
        return this;
      }

      // emit removeListener for all listeners on all events
      if (arguments.length === 0) {
        var keys = Object.keys(events);
        var key;
        for (i = 0; i < keys.length; ++i) {
          key = keys[i];
          if (key === 'removeListener') continue;
          this.removeAllListeners(key);
        }
        this.removeAllListeners('removeListener');
        this._events = Object.create(null);
        this._eventsCount = 0;
        return this;
      }

      listeners = events[type];

      if (typeof listeners === 'function') {
        this.removeListener(type, listeners);
      } else if (listeners !== undefined) {
        // LIFO order
        for (i = listeners.length - 1; i >= 0; i--) {
          this.removeListener(type, listeners[i]);
        }
      }

      return this;
    };

function _listeners(target, type, unwrap) {
  var events = target._events;

  if (events === undefined)
    return [];

  var evlistener = events[type];
  if (evlistener === undefined)
    return [];

  if (typeof evlistener === 'function')
    return unwrap ? [evlistener.listener || evlistener] : [evlistener];

  return unwrap ?
    unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);
}

EventEmitter.prototype.listeners = function listeners(type) {
  return _listeners(this, type, true);
};

EventEmitter.prototype.rawListeners = function rawListeners(type) {
  return _listeners(this, type, false);
};

EventEmitter.listenerCount = function(emitter, type) {
  if (typeof emitter.listenerCount === 'function') {
    return emitter.listenerCount(type);
  } else {
    return listenerCount.call(emitter, type);
  }
};

EventEmitter.prototype.listenerCount = listenerCount;
function listenerCount(type) {
  var events = this._events;

  if (events !== undefined) {
    var evlistener = events[type];

    if (typeof evlistener === 'function') {
      return 1;
    } else if (evlistener !== undefined) {
      return evlistener.length;
    }
  }

  return 0;
}

EventEmitter.prototype.eventNames = function eventNames() {
  return this._eventsCount > 0 ? ReflectOwnKeys(this._events) : [];
};

function arrayClone(arr, n) {
  var copy = new Array(n);
  for (var i = 0; i < n; ++i)
    copy[i] = arr[i];
  return copy;
}

function spliceOne(list, index) {
  for (; index + 1 < list.length; index++)
    list[index] = list[index + 1];
  list.pop();
}

function unwrapListeners(arr) {
  var ret = new Array(arr.length);
  for (var i = 0; i < ret.length; ++i) {
    ret[i] = arr[i].listener || arr[i];
  }
  return ret;
}

function once(emitter, name) {
  return new Promise(function (resolve, reject) {
    function eventListener() {
      if (errorListener !== undefined) {
        emitter.removeListener('error', errorListener);
      }
      resolve([].slice.call(arguments));
    };
    var errorListener;

    // Adding an error listener is not optional because
    // if an error is thrown on an event emitter we cannot
    // guarantee that the actual event we are waiting will
    // be fired. The result could be a silent way to create
    // memory or file descriptor leaks, which is something
    // we should avoid.
    if (name !== 'error') {
      errorListener = function errorListener(err) {
        emitter.removeListener(name, eventListener);
        reject(err);
      };

      emitter.once('error', errorListener);
    }

    emitter.once(name, eventListener);
  });
}


/***/ }),
/* 17 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var nodes = __webpack_require__(3);

var lib = __webpack_require__(0);

var sym = 0;

function gensym() {
  return 'hole_' + sym++;
} // copy-on-write version of map


function mapCOW(arr, func) {
  var res = null;

  for (var i = 0; i < arr.length; i++) {
    var item = func(arr[i]);

    if (item !== arr[i]) {
      if (!res) {
        res = arr.slice();
      }

      res[i] = item;
    }
  }

  return res || arr;
}

function walk(ast, func, depthFirst) {
  if (!(ast instanceof nodes.Node)) {
    return ast;
  }

  if (!depthFirst) {
    var astT = func(ast);

    if (astT && astT !== ast) {
      return astT;
    }
  }

  if (ast instanceof nodes.NodeList) {
    var children = mapCOW(ast.children, function (node) {
      return walk(node, func, depthFirst);
    });

    if (children !== ast.children) {
      ast = new nodes[ast.typename](ast.lineno, ast.colno, children);
    }
  } else if (ast instanceof nodes.CallExtension) {
    var args = walk(ast.args, func, depthFirst);
    var contentArgs = mapCOW(ast.contentArgs, function (node) {
      return walk(node, func, depthFirst);
    });

    if (args !== ast.args || contentArgs !== ast.contentArgs) {
      ast = new nodes[ast.typename](ast.extName, ast.prop, args, contentArgs);
    }
  } else {
    var props = ast.fields.map(function (field) {
      return ast[field];
    });
    var propsT = mapCOW(props, function (prop) {
      return walk(prop, func, depthFirst);
    });

    if (propsT !== props) {
      ast = new nodes[ast.typename](ast.lineno, ast.colno);
      propsT.forEach(function (prop, i) {
        ast[ast.fields[i]] = prop;
      });
    }
  }

  return depthFirst ? func(ast) || ast : ast;
}

function depthWalk(ast, func) {
  return walk(ast, func, true);
}

function _liftFilters(node, asyncFilters, prop) {
  var children = [];
  var walked = depthWalk(prop ? node[prop] : node, function (descNode) {
    var symbol;

    if (descNode instanceof nodes.Block) {
      return descNode;
    } else if (descNode instanceof nodes.Filter && lib.indexOf(asyncFilters, descNode.name.value) !== -1 || descNode instanceof nodes.CallExtensionAsync) {
      symbol = new nodes.Symbol(descNode.lineno, descNode.colno, gensym());
      children.push(new nodes.FilterAsync(descNode.lineno, descNode.colno, descNode.name, descNode.args, symbol));
    }

    return symbol;
  });

  if (prop) {
    node[prop] = walked;
  } else {
    node = walked;
  }

  if (children.length) {
    children.push(node);
    return new nodes.NodeList(node.lineno, node.colno, children);
  } else {
    return node;
  }
}

function liftFilters(ast, asyncFilters) {
  return depthWalk(ast, function (node) {
    if (node instanceof nodes.Output) {
      return _liftFilters(node, asyncFilters);
    } else if (node instanceof nodes.Set) {
      return _liftFilters(node, asyncFilters, 'value');
    } else if (node instanceof nodes.For) {
      return _liftFilters(node, asyncFilters, 'arr');
    } else if (node instanceof nodes.If) {
      return _liftFilters(node, asyncFilters, 'cond');
    } else if (node instanceof nodes.CallExtension) {
      return _liftFilters(node, asyncFilters, 'args');
    } else {
      return undefined;
    }
  });
}

function liftSuper(ast) {
  return walk(ast, function (blockNode) {
    if (!(blockNode instanceof nodes.Block)) {
      return;
    }

    var hasSuper = false;
    var symbol = gensym();
    blockNode.body = walk(blockNode.body, function (node) {
      // eslint-disable-line consistent-return
      if (node instanceof nodes.FunCall && node.name.value === 'super') {
        hasSuper = true;
        return new nodes.Symbol(node.lineno, node.colno, symbol);
      }
    });

    if (hasSuper) {
      blockNode.body.children.unshift(new nodes.Super(0, 0, blockNode.name, new nodes.Symbol(0, 0, symbol)));
    }
  });
}

function convertStatements(ast) {
  return depthWalk(ast, function (node) {
    if (!(node instanceof nodes.If) && !(node instanceof nodes.For)) {
      return undefined;
    }

    var async = false;
    walk(node, function (child) {
      if (child instanceof nodes.FilterAsync || child instanceof nodes.IfAsync || child instanceof nodes.AsyncEach || child instanceof nodes.AsyncAll || child instanceof nodes.CallExtensionAsync) {
        async = true; // Stop iterating by returning the node

        return child;
      }

      return undefined;
    });

    if (async) {
      if (node instanceof nodes.If) {
        return new nodes.IfAsync(node.lineno, node.colno, node.cond, node.body, node.else_);
      } else if (node instanceof nodes.For && !(node instanceof nodes.AsyncAll)) {
        return new nodes.AsyncEach(node.lineno, node.colno, node.arr, node.name, node.body, node.else_);
      }
    }

    return undefined;
  });
}

function cps(ast, asyncFilters) {
  return convertStatements(liftSuper(liftFilters(ast, asyncFilters)));
}

function transform(ast, asyncFilters) {
  return cps(ast, asyncFilters || []);
} // var parser = require('./parser');
// var src = 'hello {% foo %}{% endfoo %} end';
// var ast = transform(parser.parse(src, [new FooExtension()]), ['bar']);
// nodes.printNodes(ast);


module.exports = {
  transform: transform
};

/***/ }),
/* 18 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var lib = __webpack_require__(0);

var r = __webpack_require__(2);

var exports = module.exports = {};

function normalize(value, defaultValue) {
  if (value === null || value === undefined || value === false) {
    return defaultValue;
  }

  return value;
}

exports.abs = Math.abs;

function isNaN(num) {
  return num !== num; // eslint-disable-line no-self-compare
}

function batch(arr, linecount, fillWith) {
  var i;
  var res = [];
  var tmp = [];

  for (i = 0; i < arr.length; i++) {
    if (i % linecount === 0 && tmp.length) {
      res.push(tmp);
      tmp = [];
    }

    tmp.push(arr[i]);
  }

  if (tmp.length) {
    if (fillWith) {
      for (i = tmp.length; i < linecount; i++) {
        tmp.push(fillWith);
      }
    }

    res.push(tmp);
  }

  return res;
}

exports.batch = batch;

function capitalize(str) {
  str = normalize(str, '');
  var ret = str.toLowerCase();
  return r.copySafeness(str, ret.charAt(0).toUpperCase() + ret.slice(1));
}

exports.capitalize = capitalize;

function center(str, width) {
  str = normalize(str, '');
  width = width || 80;

  if (str.length >= width) {
    return str;
  }

  var spaces = width - str.length;
  var pre = lib.repeat(' ', spaces / 2 - spaces % 2);
  var post = lib.repeat(' ', spaces / 2);
  return r.copySafeness(str, pre + str + post);
}

exports.center = center;

function default_(val, def, bool) {
  if (bool) {
    return val || def;
  } else {
    return val !== undefined ? val : def;
  }
} // TODO: it is confusing to export something called 'default'


exports['default'] = default_; // eslint-disable-line dot-notation

function dictsort(val, caseSensitive, by) {
  if (!lib.isObject(val)) {
    throw new lib.TemplateError('dictsort filter: val must be an object');
  }

  var array = []; // deliberately include properties from the object's prototype

  for (var k in val) {
    // eslint-disable-line guard-for-in, no-restricted-syntax
    array.push([k, val[k]]);
  }

  var si;

  if (by === undefined || by === 'key') {
    si = 0;
  } else if (by === 'value') {
    si = 1;
  } else {
    throw new lib.TemplateError('dictsort filter: You can only sort by either key or value');
  }

  array.sort(function (t1, t2) {
    var a = t1[si];
    var b = t2[si];

    if (!caseSensitive) {
      if (lib.isString(a)) {
        a = a.toUpperCase();
      }

      if (lib.isString(b)) {
        b = b.toUpperCase();
      }
    }

    return a > b ? 1 : a === b ? 0 : -1; // eslint-disable-line no-nested-ternary
  });
  return array;
}

exports.dictsort = dictsort;

function dump(obj, spaces) {
  return JSON.stringify(obj, null, spaces);
}

exports.dump = dump;

function escape(str) {
  if (str instanceof r.SafeString) {
    return str;
  }

  str = str === null || str === undefined ? '' : str;
  return r.markSafe(lib.escape(str.toString()));
}

exports.escape = escape;

function safe(str) {
  if (str instanceof r.SafeString) {
    return str;
  }

  str = str === null || str === undefined ? '' : str;
  return r.markSafe(str.toString());
}

exports.safe = safe;

function first(arr) {
  return arr[0];
}

exports.first = first;

function forceescape(str) {
  str = str === null || str === undefined ? '' : str;
  return r.markSafe(lib.escape(str.toString()));
}

exports.forceescape = forceescape;

function groupby(arr, attr) {
  return lib.groupBy(arr, attr, this.env.opts.throwOnUndefined);
}

exports.groupby = groupby;

function indent(str, width, indentfirst) {
  str = normalize(str, '');

  if (str === '') {
    return '';
  }

  width = width || 4; // let res = '';

  var lines = str.split('\n');
  var sp = lib.repeat(' ', width);
  var res = lines.map(function (l, i) {
    return i === 0 && !indentfirst ? l : "" + sp + l;
  }).join('\n');
  return r.copySafeness(str, res);
}

exports.indent = indent;

function join(arr, del, attr) {
  del = del || '';

  if (attr) {
    arr = lib.map(arr, function (v) {
      return v[attr];
    });
  }

  return arr.join(del);
}

exports.join = join;

function last(arr) {
  return arr[arr.length - 1];
}

exports.last = last;

function lengthFilter(val) {
  var value = normalize(val, '');

  if (value !== undefined) {
    if (typeof Map === 'function' && value instanceof Map || typeof Set === 'function' && value instanceof Set) {
      // ECMAScript 2015 Maps and Sets
      return value.size;
    }

    if (lib.isObject(value) && !(value instanceof r.SafeString)) {
      // Objects (besides SafeStrings), non-primative Arrays
      return lib.keys(value).length;
    }

    return value.length;
  }

  return 0;
}

exports.length = lengthFilter;

function list(val) {
  if (lib.isString(val)) {
    return val.split('');
  } else if (lib.isObject(val)) {
    return lib._entries(val || {}).map(function (_ref) {
      var key = _ref[0],
          value = _ref[1];
      return {
        key: key,
        value: value
      };
    });
  } else if (lib.isArray(val)) {
    return val;
  } else {
    throw new lib.TemplateError('list filter: type not iterable');
  }
}

exports.list = list;

function lower(str) {
  str = normalize(str, '');
  return str.toLowerCase();
}

exports.lower = lower;

function nl2br(str) {
  if (str === null || str === undefined) {
    return '';
  }

  return r.copySafeness(str, str.replace(/\r\n|\n/g, '<br />\n'));
}

exports.nl2br = nl2br;

function random(arr) {
  return arr[Math.floor(Math.random() * arr.length)];
}

exports.random = random;
/**
 * Construct select or reject filter
 *
 * @param {boolean} expectedTestResult
 * @returns {function(array, string, *): array}
 */

function getSelectOrReject(expectedTestResult) {
  function filter(arr, testName, secondArg) {
    if (testName === void 0) {
      testName = 'truthy';
    }

    var context = this;
    var test = context.env.getTest(testName);
    return lib.toArray(arr).filter(function examineTestResult(item) {
      return test.call(context, item, secondArg) === expectedTestResult;
    });
  }

  return filter;
}

exports.reject = getSelectOrReject(false);

function rejectattr(arr, attr) {
  return arr.filter(function (item) {
    return !item[attr];
  });
}

exports.rejectattr = rejectattr;
exports.select = getSelectOrReject(true);

function selectattr(arr, attr) {
  return arr.filter(function (item) {
    return !!item[attr];
  });
}

exports.selectattr = selectattr;

function replace(str, old, new_, maxCount) {
  var originalStr = str;

  if (old instanceof RegExp) {
    return str.replace(old, new_);
  }

  if (typeof maxCount === 'undefined') {
    maxCount = -1;
  }

  var res = ''; // Output
  // Cast Numbers in the search term to string

  if (typeof old === 'number') {
    old = '' + old;
  } else if (typeof old !== 'string') {
    // If it is something other than number or string,
    // return the original string
    return str;
  } // Cast numbers in the replacement to string


  if (typeof str === 'number') {
    str = '' + str;
  } // If by now, we don't have a string, throw it back


  if (typeof str !== 'string' && !(str instanceof r.SafeString)) {
    return str;
  } // ShortCircuits


  if (old === '') {
    // Mimic the python behaviour: empty string is replaced
    // by replacement e.g. "abc"|replace("", ".") -> .a.b.c.
    res = new_ + str.split('').join(new_) + new_;
    return r.copySafeness(str, res);
  }

  var nextIndex = str.indexOf(old); // if # of replacements to perform is 0, or the string to does
  // not contain the old value, return the string

  if (maxCount === 0 || nextIndex === -1) {
    return str;
  }

  var pos = 0;
  var count = 0; // # of replacements made

  while (nextIndex > -1 && (maxCount === -1 || count < maxCount)) {
    // Grab the next chunk of src string and add it with the
    // replacement, to the result
    res += str.substring(pos, nextIndex) + new_; // Increment our pointer in the src string

    pos = nextIndex + old.length;
    count++; // See if there are any more replacements to be made

    nextIndex = str.indexOf(old, pos);
  } // We've either reached the end, or done the max # of
  // replacements, tack on any remaining string


  if (pos < str.length) {
    res += str.substring(pos);
  }

  return r.copySafeness(originalStr, res);
}

exports.replace = replace;

function reverse(val) {
  var arr;

  if (lib.isString(val)) {
    arr = list(val);
  } else {
    // Copy it
    arr = lib.map(val, function (v) {
      return v;
    });
  }

  arr.reverse();

  if (lib.isString(val)) {
    return r.copySafeness(val, arr.join(''));
  }

  return arr;
}

exports.reverse = reverse;

function round(val, precision, method) {
  precision = precision || 0;
  var factor = Math.pow(10, precision);
  var rounder;

  if (method === 'ceil') {
    rounder = Math.ceil;
  } else if (method === 'floor') {
    rounder = Math.floor;
  } else {
    rounder = Math.round;
  }

  return rounder(val * factor) / factor;
}

exports.round = round;

function slice(arr, slices, fillWith) {
  var sliceLength = Math.floor(arr.length / slices);
  var extra = arr.length % slices;
  var res = [];
  var offset = 0;

  for (var i = 0; i < slices; i++) {
    var start = offset + i * sliceLength;

    if (i < extra) {
      offset++;
    }

    var end = offset + (i + 1) * sliceLength;
    var currSlice = arr.slice(start, end);

    if (fillWith && i >= extra) {
      currSlice.push(fillWith);
    }

    res.push(currSlice);
  }

  return res;
}

exports.slice = slice;

function sum(arr, attr, start) {
  if (start === void 0) {
    start = 0;
  }

  if (attr) {
    arr = lib.map(arr, function (v) {
      return v[attr];
    });
  }

  return start + arr.reduce(function (a, b) {
    return a + b;
  }, 0);
}

exports.sum = sum;
exports.sort = r.makeMacro(['value', 'reverse', 'case_sensitive', 'attribute'], [], function sortFilter(arr, reversed, caseSens, attr) {
  var _this = this;

  // Copy it
  var array = lib.map(arr, function (v) {
    return v;
  });
  var getAttribute = lib.getAttrGetter(attr);
  array.sort(function (a, b) {
    var x = attr ? getAttribute(a) : a;
    var y = attr ? getAttribute(b) : b;

    if (_this.env.opts.throwOnUndefined && attr && (x === undefined || y === undefined)) {
      throw new TypeError("sort: attribute \"" + attr + "\" resolved to undefined");
    }

    if (!caseSens && lib.isString(x) && lib.isString(y)) {
      x = x.toLowerCase();
      y = y.toLowerCase();
    }

    if (x < y) {
      return reversed ? 1 : -1;
    } else if (x > y) {
      return reversed ? -1 : 1;
    } else {
      return 0;
    }
  });
  return array;
});

function string(obj) {
  return r.copySafeness(obj, obj);
}

exports.string = string;

function striptags(input, preserveLinebreaks) {
  input = normalize(input, '');
  var tags = /<\/?([a-z][a-z0-9]*)\b[^>]*>|<!--[\s\S]*?-->/gi;
  var trimmedInput = trim(input.replace(tags, ''));
  var res = '';

  if (preserveLinebreaks) {
    res = trimmedInput.replace(/^ +| +$/gm, '') // remove leading and trailing spaces
    .replace(/ +/g, ' ') // squash adjacent spaces
    .replace(/(\r\n)/g, '\n') // normalize linebreaks (CRLF -> LF)
    .replace(/\n\n\n+/g, '\n\n'); // squash abnormal adjacent linebreaks
  } else {
    res = trimmedInput.replace(/\s+/gi, ' ');
  }

  return r.copySafeness(input, res);
}

exports.striptags = striptags;

function title(str) {
  str = normalize(str, '');
  var words = str.split(' ').map(function (word) {
    return capitalize(word);
  });
  return r.copySafeness(str, words.join(' '));
}

exports.title = title;

function trim(str) {
  return r.copySafeness(str, str.replace(/^\s*|\s*$/g, ''));
}

exports.trim = trim;

function truncate(input, length, killwords, end) {
  var orig = input;
  input = normalize(input, '');
  length = length || 255;

  if (input.length <= length) {
    return input;
  }

  if (killwords) {
    input = input.substring(0, length);
  } else {
    var idx = input.lastIndexOf(' ', length);

    if (idx === -1) {
      idx = length;
    }

    input = input.substring(0, idx);
  }

  input += end !== undefined && end !== null ? end : '...';
  return r.copySafeness(orig, input);
}

exports.truncate = truncate;

function upper(str) {
  str = normalize(str, '');
  return str.toUpperCase();
}

exports.upper = upper;

function urlencode(obj) {
  var enc = encodeURIComponent;

  if (lib.isString(obj)) {
    return enc(obj);
  } else {
    var keyvals = lib.isArray(obj) ? obj : lib._entries(obj);
    return keyvals.map(function (_ref2) {
      var k = _ref2[0],
          v = _ref2[1];
      return enc(k) + "=" + enc(v);
    }).join('&');
  }
}

exports.urlencode = urlencode; // For the jinja regexp, see
// https://github.com/mitsuhiko/jinja2/blob/f15b814dcba6aa12bc74d1f7d0c881d55f7126be/jinja2/utils.py#L20-L23

var puncRe = /^(?:\(|<|&lt;)?(.*?)(?:\.|,|\)|\n|&gt;)?$/; // from http://blog.gerv.net/2011/05/html5_email_address_regexp/

var emailRe = /^[\w.!#$%&'*+\-\/=?\^`{|}~]+@[a-z\d\-]+(\.[a-z\d\-]+)+$/i;
var httpHttpsRe = /^https?:\/\/.*$/;
var wwwRe = /^www\./;
var tldRe = /\.(?:org|net|com)(?:\:|\/|$)/;

function urlize(str, length, nofollow) {
  if (isNaN(length)) {
    length = Infinity;
  }

  var noFollowAttr = nofollow === true ? ' rel="nofollow"' : '';
  var words = str.split(/(\s+)/).filter(function (word) {
    // If the word has no length, bail. This can happen for str with
    // trailing whitespace.
    return word && word.length;
  }).map(function (word) {
    var matches = word.match(puncRe);
    var possibleUrl = matches ? matches[1] : word;
    var shortUrl = possibleUrl.substr(0, length); // url that starts with http or https

    if (httpHttpsRe.test(possibleUrl)) {
      return "<a href=\"" + possibleUrl + "\"" + noFollowAttr + ">" + shortUrl + "</a>";
    } // url that starts with www.


    if (wwwRe.test(possibleUrl)) {
      return "<a href=\"http://" + possibleUrl + "\"" + noFollowAttr + ">" + shortUrl + "</a>";
    } // an email address of the form username@domain.tld


    if (emailRe.test(possibleUrl)) {
      return "<a href=\"mailto:" + possibleUrl + "\">" + possibleUrl + "</a>";
    } // url that ends in .com, .org or .net that is not an email address


    if (tldRe.test(possibleUrl)) {
      return "<a href=\"http://" + possibleUrl + "\"" + noFollowAttr + ">" + shortUrl + "</a>";
    }

    return word;
  });
  return words.join('');
}

exports.urlize = urlize;

function wordcount(str) {
  str = normalize(str, '');
  var words = str ? str.match(/\w+/g) : null;
  return words ? words.length : null;
}

exports.wordcount = wordcount;

function float(val, def) {
  var res = parseFloat(val);
  return isNaN(res) ? def : res;
}

exports.float = float;
var intFilter = r.makeMacro(['value', 'default', 'base'], [], function doInt(value, defaultValue, base) {
  if (base === void 0) {
    base = 10;
  }

  var res = parseInt(value, base);
  return isNaN(res) ? defaultValue : res;
});
exports.int = intFilter; // Aliases

exports.d = exports.default;
exports.e = exports.escape;

/***/ }),
/* 19 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

var Loader = __webpack_require__(6);

var PrecompiledLoader = /*#__PURE__*/function (_Loader) {
  _inheritsLoose(PrecompiledLoader, _Loader);

  function PrecompiledLoader(compiledTemplates) {
    var _this;

    _this = _Loader.call(this) || this;
    _this.precompiled = compiledTemplates || {};
    return _this;
  }

  var _proto = PrecompiledLoader.prototype;

  _proto.getSource = function getSource(name) {
    if (this.precompiled[name]) {
      return {
        src: {
          type: 'code',
          obj: this.precompiled[name]
        },
        path: name
      };
    }

    return null;
  };

  return PrecompiledLoader;
}(Loader);

module.exports = {
  PrecompiledLoader: PrecompiledLoader
};

/***/ }),
/* 20 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var SafeString = __webpack_require__(2).SafeString;
/**
 * Returns `true` if the object is a function, otherwise `false`.
 * @param { any } value
 * @returns { boolean }
 */


function callable(value) {
  return typeof value === 'function';
}

exports.callable = callable;
/**
 * Returns `true` if the object is strictly not `undefined`.
 * @param { any } value
 * @returns { boolean }
 */

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

exports.defined = defined;
/**
 * Returns `true` if the operand (one) is divisble by the test's argument
 * (two).
 * @param { number } one
 * @param { number } two
 * @returns { boolean }
 */

function divisibleby(one, two) {
  return one % two === 0;
}

exports.divisibleby = divisibleby;
/**
 * Returns true if the string has been escaped (i.e., is a SafeString).
 * @param { any } value
 * @returns { boolean }
 */

function escaped(value) {
  return value instanceof SafeString;
}

exports.escaped = escaped;
/**
 * Returns `true` if the arguments are strictly equal.
 * @param { any } one
 * @param { any } two
 */

function equalto(one, two) {
  return one === two;
}

exports.equalto = equalto; // Aliases

exports.eq = exports.equalto;
exports.sameas = exports.equalto;
/**
 * Returns `true` if the value is evenly divisible by 2.
 * @param { number } value
 * @returns { boolean }
 */

function even(value) {
  return value % 2 === 0;
}

exports.even = even;
/**
 * Returns `true` if the value is falsy - if I recall correctly, '', 0, false,
 * undefined, NaN or null. I don't know if we should stick to the default JS
 * behavior or attempt to replicate what Python believes should be falsy (i.e.,
 * empty arrays, empty dicts, not 0...).
 * @param { any } value
 * @returns { boolean }
 */

function falsy(value) {
  return !value;
}

exports.falsy = falsy;
/**
 * Returns `true` if the operand (one) is greater or equal to the test's
 * argument (two).
 * @param { number } one
 * @param { number } two
 * @returns { boolean }
 */

function ge(one, two) {
  return one >= two;
}

exports.ge = ge;
/**
 * Returns `true` if the operand (one) is greater than the test's argument
 * (two).
 * @param { number } one
 * @param { number } two
 * @returns { boolean }
 */

function greaterthan(one, two) {
  return one > two;
}

exports.greaterthan = greaterthan; // alias

exports.gt = exports.greaterthan;
/**
 * Returns `true` if the operand (one) is less than or equal to the test's
 * argument (two).
 * @param { number } one
 * @param { number } two
 * @returns { boolean }
 */

function le(one, two) {
  return one <= two;
}

exports.le = le;
/**
 * Returns `true` if the operand (one) is less than the test's passed argument
 * (two).
 * @param { number } one
 * @param { number } two
 * @returns { boolean }
 */

function lessthan(one, two) {
  return one < two;
}

exports.lessthan = lessthan; // alias

exports.lt = exports.lessthan;
/**
 * Returns `true` if the string is lowercased.
 * @param { string } value
 * @returns { boolean }
 */

function lower(value) {
  return value.toLowerCase() === value;
}

exports.lower = lower;
/**
 * Returns `true` if the operand (one) is less than or equal to the test's
 * argument (two).
 * @param { number } one
 * @param { number } two
 * @returns { boolean }
 */

function ne(one, two) {
  return one !== two;
}

exports.ne = ne;
/**
 * Returns true if the value is strictly equal to `null`.
 * @param { any }
 * @returns { boolean }
 */

function nullTest(value) {
  return value === null;
}

exports.null = nullTest;
/**
 * Returns true if value is a number.
 * @param { any }
 * @returns { boolean }
 */

function number(value) {
  return typeof value === 'number';
}

exports.number = number;
/**
 * Returns `true` if the value is *not* evenly divisible by 2.
 * @param { number } value
 * @returns { boolean }
 */

function odd(value) {
  return value % 2 === 1;
}

exports.odd = odd;
/**
 * Returns `true` if the value is a string, `false` if not.
 * @param { any } value
 * @returns { boolean }
 */

function string(value) {
  return typeof value === 'string';
}

exports.string = string;
/**
 * Returns `true` if the value is not in the list of things considered falsy:
 * '', null, undefined, 0, NaN and false.
 * @param { any } value
 * @returns { boolean }
 */

function truthy(value) {
  return !!value;
}

exports.truthy = truthy;
/**
 * Returns `true` if the value is undefined.
 * @param { any } value
 * @returns { boolean }
 */

function undefinedTest(value) {
  return value === undefined;
}

exports.undefined = undefinedTest;
/**
 * Returns `true` if the string is uppercased.
 * @param { string } value
 * @returns { boolean }
 */

function upper(value) {
  return value.toUpperCase() === value;
}

exports.upper = upper;
/**
 * If ES6 features are available, returns `true` if the value implements the
 * `Symbol.iterator` method. If not, it's a string or Array.
 *
 * Could potentially cause issues if a browser exists that has Set and Map but
 * not Symbol.
 *
 * @param { any } value
 * @returns { boolean }
 */

function iterable(value) {
  if (typeof Symbol !== 'undefined') {
    return !!value[Symbol.iterator];
  } else {
    return Array.isArray(value) || typeof value === 'string';
  }
}

exports.iterable = iterable;
/**
 * If ES6 features are available, returns `true` if the value is an object hash
 * or an ES6 Map. Otherwise just return if it's an object hash.
 * @param { any } value
 * @returns { boolean }
 */

function mapping(value) {
  // only maps and object hashes
  var bool = value !== null && value !== undefined && typeof value === 'object' && !Array.isArray(value);

  if (Set) {
    return bool && !(value instanceof Set);
  } else {
    return bool;
  }
}

exports.mapping = mapping;

/***/ }),
/* 21 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function _cycler(items) {
  var index = -1;
  return {
    current: null,
    reset: function reset() {
      index = -1;
      this.current = null;
    },
    next: function next() {
      index++;

      if (index >= items.length) {
        index = 0;
      }

      this.current = items[index];
      return this.current;
    }
  };
}

function _joiner(sep) {
  sep = sep || ',';
  var first = true;
  return function () {
    var val = first ? '' : sep;
    first = false;
    return val;
  };
} // Making this a function instead so it returns a new object
// each time it's called. That way, if something like an environment
// uses it, they will each have their own copy.


function globals() {
  return {
    range: function range(start, stop, step) {
      if (typeof stop === 'undefined') {
        stop = start;
        start = 0;
        step = 1;
      } else if (!step) {
        step = 1;
      }

      var arr = [];

      if (step > 0) {
        for (var i = start; i < stop; i += step) {
          arr.push(i);
        }
      } else {
        for (var _i = start; _i > stop; _i += step) {
          // eslint-disable-line for-direction
          arr.push(_i);
        }
      }

      return arr;
    },
    cycler: function cycler() {
      return _cycler(Array.prototype.slice.call(arguments));
    },
    joiner: function joiner(sep) {
      return _joiner(sep);
    }
  };
}

module.exports = globals;

/***/ }),
/* 22 */
/***/ (function(module, exports, __webpack_require__) {

var path = __webpack_require__(4);

module.exports = function express(env, app) {
  function NunjucksView(name, opts) {
    this.name = name;
    this.path = name;
    this.defaultEngine = opts.defaultEngine;
    this.ext = path.extname(name);

    if (!this.ext && !this.defaultEngine) {
      throw new Error('No default engine was specified and no extension was provided.');
    }

    if (!this.ext) {
      this.name += this.ext = (this.defaultEngine[0] !== '.' ? '.' : '') + this.defaultEngine;
    }
  }

  NunjucksView.prototype.render = function render(opts, cb) {
    env.render(this.name, opts, cb);
  };

  app.set('view', NunjucksView);
  app.set('nunjucksEnv', env);
  return env;
};

/***/ }),
/* 23 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var fs = __webpack_require__(4);

var path = __webpack_require__(4);

var _require = __webpack_require__(0),
    _prettifyError = _require._prettifyError;

var compiler = __webpack_require__(5);

var _require2 = __webpack_require__(7),
    Environment = _require2.Environment;

var precompileGlobal = __webpack_require__(24);

function match(filename, patterns) {
  if (!Array.isArray(patterns)) {
    return false;
  }

  return patterns.some(function (pattern) {
    return filename.match(pattern);
  });
}

function precompileString(str, opts) {
  opts = opts || {};
  opts.isString = true;
  var env = opts.env || new Environment([]);
  var wrapper = opts.wrapper || precompileGlobal;

  if (!opts.name) {
    throw new Error('the "name" option is required when compiling a string');
  }

  return wrapper([_precompile(str, opts.name, env)], opts);
}

function precompile(input, opts) {
  // The following options are available:
  //
  // * name: name of the template (auto-generated when compiling a directory)
  // * isString: input is a string, not a file path
  // * asFunction: generate a callable function
  // * force: keep compiling on error
  // * env: the Environment to use (gets extensions and async filters from it)
  // * include: which file/folders to include (folders are auto-included, files are auto-excluded)
  // * exclude: which file/folders to exclude (folders are auto-included, files are auto-excluded)
  // * wrapper: function(templates, opts) {...}
  //       Customize the output format to store the compiled template.
  //       By default, templates are stored in a global variable used by the runtime.
  //       A custom loader will be necessary to load your custom wrapper.
  opts = opts || {};
  var env = opts.env || new Environment([]);
  var wrapper = opts.wrapper || precompileGlobal;

  if (opts.isString) {
    return precompileString(input, opts);
  }

  var pathStats = fs.existsSync(input) && fs.statSync(input);
  var precompiled = [];
  var templates = [];

  function addTemplates(dir) {
    fs.readdirSync(dir).forEach(function (file) {
      var filepath = path.join(dir, file);
      var subpath = filepath.substr(path.join(input, '/').length);
      var stat = fs.statSync(filepath);

      if (stat && stat.isDirectory()) {
        subpath += '/';

        if (!match(subpath, opts.exclude)) {
          addTemplates(filepath);
        }
      } else if (match(subpath, opts.include)) {
        templates.push(filepath);
      }
    });
  }

  if (pathStats.isFile()) {
    precompiled.push(_precompile(fs.readFileSync(input, 'utf-8'), opts.name || input, env));
  } else if (pathStats.isDirectory()) {
    addTemplates(input);

    for (var i = 0; i < templates.length; i++) {
      var name = templates[i].replace(path.join(input, '/'), '');

      try {
        precompiled.push(_precompile(fs.readFileSync(templates[i], 'utf-8'), name, env));
      } catch (e) {
        if (opts.force) {
          // Don't stop generating the output if we're
          // forcing compilation.
          console.error(e); // eslint-disable-line no-console
        } else {
          throw e;
        }
      }
    }
  }

  return wrapper(precompiled, opts);
}

function _precompile(str, name, env) {
  env = env || new Environment([]);
  var asyncFilters = env.asyncFilters;
  var extensions = env.extensionsList;
  var template;
  name = name.replace(/\\/g, '/');

  try {
    template = compiler.compile(str, asyncFilters, extensions, name, env.opts);
  } catch (err) {
    throw _prettifyError(name, false, err);
  }

  return {
    name: name,
    template: template
  };
}

module.exports = {
  precompile: precompile,
  precompileString: precompileString
};

/***/ }),
/* 24 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


function precompileGlobal(templates, opts) {
  var out = '';
  opts = opts || {};

  for (var i = 0; i < templates.length; i++) {
    var name = JSON.stringify(templates[i].name);
    var template = templates[i].template;
    out += '(function() {' + '(window.nunjucksPrecompiled = window.nunjucksPrecompiled || {})' + '[' + name + '] = (function() {\n' + template + '\n})();\n';

    if (opts.asFunction) {
      out += 'return function(ctx, cb) { return nunjucks.render(' + name + ', ctx, cb); }\n';
    }

    out += '})();\n';
  }

  return out;
}

module.exports = precompileGlobal;

/***/ }),
/* 25 */
/***/ (function(module, exports, __webpack_require__) {

function installCompat() {
  'use strict';
  /* eslint-disable camelcase */
  // This must be called like `nunjucks.installCompat` so that `this`
  // references the nunjucks instance

  var runtime = this.runtime;
  var lib = this.lib; // Handle slim case where these 'modules' are excluded from the built source

  var Compiler = this.compiler.Compiler;
  var Parser = this.parser.Parser;
  var nodes = this.nodes;
  var lexer = this.lexer;
  var orig_contextOrFrameLookup = runtime.contextOrFrameLookup;
  var orig_memberLookup = runtime.memberLookup;
  var orig_Compiler_assertType;
  var orig_Parser_parseAggregate;

  if (Compiler) {
    orig_Compiler_assertType = Compiler.prototype.assertType;
  }

  if (Parser) {
    orig_Parser_parseAggregate = Parser.prototype.parseAggregate;
  }

  function uninstall() {
    runtime.contextOrFrameLookup = orig_contextOrFrameLookup;
    runtime.memberLookup = orig_memberLookup;

    if (Compiler) {
      Compiler.prototype.assertType = orig_Compiler_assertType;
    }

    if (Parser) {
      Parser.prototype.parseAggregate = orig_Parser_parseAggregate;
    }
  }

  runtime.contextOrFrameLookup = function contextOrFrameLookup(context, frame, key) {
    var val = orig_contextOrFrameLookup.apply(this, arguments);

    if (val !== undefined) {
      return val;
    }

    switch (key) {
      case 'True':
        return true;

      case 'False':
        return false;

      case 'None':
        return null;

      default:
        return undefined;
    }
  };

  function getTokensState(tokens) {
    return {
      index: tokens.index,
      lineno: tokens.lineno,
      colno: tokens.colno
    };
  }

  if ("STD" !== 'SLIM' && nodes && Compiler && Parser) {
    // i.e., not slim mode
    var Slice = nodes.Node.extend('Slice', {
      fields: ['start', 'stop', 'step'],
      init: function init(lineno, colno, start, stop, step) {
        start = start || new nodes.Literal(lineno, colno, null);
        stop = stop || new nodes.Literal(lineno, colno, null);
        step = step || new nodes.Literal(lineno, colno, 1);
        this.parent(lineno, colno, start, stop, step);
      }
    });

    Compiler.prototype.assertType = function assertType(node) {
      if (node instanceof Slice) {
        return;
      }

      orig_Compiler_assertType.apply(this, arguments);
    };

    Compiler.prototype.compileSlice = function compileSlice(node, frame) {
      this._emit('(');

      this._compileExpression(node.start, frame);

      this._emit('),(');

      this._compileExpression(node.stop, frame);

      this._emit('),(');

      this._compileExpression(node.step, frame);

      this._emit(')');
    };

    Parser.prototype.parseAggregate = function parseAggregate() {
      var _this = this;

      var origState = getTokensState(this.tokens); // Set back one accounting for opening bracket/parens

      origState.colno--;
      origState.index--;

      try {
        return orig_Parser_parseAggregate.apply(this);
      } catch (e) {
        var errState = getTokensState(this.tokens);

        var rethrow = function rethrow() {
          lib._assign(_this.tokens, errState);

          return e;
        }; // Reset to state before original parseAggregate called


        lib._assign(this.tokens, origState);

        this.peeked = false;
        var tok = this.peekToken();

        if (tok.type !== lexer.TOKEN_LEFT_BRACKET) {
          throw rethrow();
        } else {
          this.nextToken();
        }

        var node = new Slice(tok.lineno, tok.colno); // If we don't encounter a colon while parsing, this is not a slice,
        // so re-raise the original exception.

        var isSlice = false;

        for (var i = 0; i <= node.fields.length; i++) {
          if (this.skip(lexer.TOKEN_RIGHT_BRACKET)) {
            break;
          }

          if (i === node.fields.length) {
            if (isSlice) {
              this.fail('parseSlice: too many slice components', tok.lineno, tok.colno);
            } else {
              break;
            }
          }

          if (this.skip(lexer.TOKEN_COLON)) {
            isSlice = true;
          } else {
            var field = node.fields[i];
            node[field] = this.parseExpression();
            isSlice = this.skip(lexer.TOKEN_COLON) || isSlice;
          }
        }

        if (!isSlice) {
          throw rethrow();
        }

        return new nodes.Array(tok.lineno, tok.colno, [node]);
      }
    };
  }

  function sliceLookup(obj, start, stop, step) {
    obj = obj || [];

    if (start === null) {
      start = step < 0 ? obj.length - 1 : 0;
    }

    if (stop === null) {
      stop = step < 0 ? -1 : obj.length;
    } else if (stop < 0) {
      stop += obj.length;
    }

    if (start < 0) {
      start += obj.length;
    }

    var results = [];

    for (var i = start;; i += step) {
      if (i < 0 || i > obj.length) {
        break;
      }

      if (step > 0 && i >= stop) {
        break;
      }

      if (step < 0 && i <= stop) {
        break;
      }

      results.push(runtime.memberLookup(obj, i));
    }

    return results;
  }

  function hasOwnProp(obj, key) {
    return Object.prototype.hasOwnProperty.call(obj, key);
  }

  var ARRAY_MEMBERS = {
    pop: function pop(index) {
      if (index === undefined) {
        return this.pop();
      }

      if (index >= this.length || index < 0) {
        throw new Error('KeyError');
      }

      return this.splice(index, 1);
    },
    append: function append(element) {
      return this.push(element);
    },
    remove: function remove(element) {
      for (var i = 0; i < this.length; i++) {
        if (this[i] === element) {
          return this.splice(i, 1);
        }
      }

      throw new Error('ValueError');
    },
    count: function count(element) {
      var count = 0;

      for (var i = 0; i < this.length; i++) {
        if (this[i] === element) {
          count++;
        }
      }

      return count;
    },
    index: function index(element) {
      var i;

      if ((i = this.indexOf(element)) === -1) {
        throw new Error('ValueError');
      }

      return i;
    },
    find: function find(element) {
      return this.indexOf(element);
    },
    insert: function insert(index, elem) {
      return this.splice(index, 0, elem);
    }
  };
  var OBJECT_MEMBERS = {
    items: function items() {
      return lib._entries(this);
    },
    values: function values() {
      return lib._values(this);
    },
    keys: function keys() {
      return lib.keys(this);
    },
    get: function get(key, def) {
      var output = this[key];

      if (output === undefined) {
        output = def;
      }

      return output;
    },
    has_key: function has_key(key) {
      return hasOwnProp(this, key);
    },
    pop: function pop(key, def) {
      var output = this[key];

      if (output === undefined && def !== undefined) {
        output = def;
      } else if (output === undefined) {
        throw new Error('KeyError');
      } else {
        delete this[key];
      }

      return output;
    },
    popitem: function popitem() {
      var keys = lib.keys(this);

      if (!keys.length) {
        throw new Error('KeyError');
      }

      var k = keys[0];
      var val = this[k];
      delete this[k];
      return [k, val];
    },
    setdefault: function setdefault(key, def) {
      if (def === void 0) {
        def = null;
      }

      if (!(key in this)) {
        this[key] = def;
      }

      return this[key];
    },
    update: function update(kwargs) {
      lib._assign(this, kwargs);

      return null; // Always returns None
    }
  };
  OBJECT_MEMBERS.iteritems = OBJECT_MEMBERS.items;
  OBJECT_MEMBERS.itervalues = OBJECT_MEMBERS.values;
  OBJECT_MEMBERS.iterkeys = OBJECT_MEMBERS.keys;

  runtime.memberLookup = function memberLookup(obj, val, autoescape) {
    if (arguments.length === 4) {
      return sliceLookup.apply(this, arguments);
    }

    obj = obj || {}; // If the object is an object, return any of the methods that Python would
    // otherwise provide.

    if (lib.isArray(obj) && hasOwnProp(ARRAY_MEMBERS, val)) {
      return ARRAY_MEMBERS[val].bind(obj);
    }

    if (lib.isObject(obj) && hasOwnProp(OBJECT_MEMBERS, val)) {
      return OBJECT_MEMBERS[val].bind(obj);
    }

    return orig_memberLookup.apply(this, arguments);
  };

  return uninstall;
}

module.exports = installCompat;

/***/ })
/******/ ]);
});
//# sourceMappingURL=nunjucks.js.map