'use strict';

exports.__esModule = true;
exports.extend = extend;
exports.indexOf = indexOf;
exports.escapeExpression = escapeExpression;
exports.isEmpty = isEmpty;
exports.createFrame = createFrame;
exports.blockParams = blockParams;
exports.appendContextPath = appendContextPath;
var escape = {
  '&': '&',
  '<': '&lt;',
  '>': '&gt;',
  '"': '&quot;',
  "'": '&#x27;',
  '`': '&#x60;',
  '=': '&#x3D;'
};

var badChars = /[&<>"'`=]/g,
    possible = /[&<>"'`=]/;

function escapeChar(chr) {
  return escape[chr];
}

function extend(obj /* , ...source */) {
  for (var i = 1; i < arguments.length; i++) {
    for (var key in arguments[i]) {
      if (Object.prototype.hasOwnProperty.call(arguments[i], key)) {
        obj[key] = arguments[i][key];
      }
    }
  }

  return obj;
}

var toString = Object.prototype.toString;

exports.toString = toString;
// Sourced from lodash
// https://github.com/bestiejs/lodash/blob/master/LICENSE.txt
/* eslint-disable func-style */
var isFunction = function isFunction(value) {
  return typeof value === 'function';
};
// fallback for older versions of Chrome and Safari
/* istanbul ignore next */
if (isFunction(/x/)) {
  exports.isFunction = isFunction = function (value) {
    return typeof value === 'function' && toString.call(value) === '[object Function]';
  };
}
exports.isFunction = isFunction;

/* eslint-enable func-style */

/* istanbul ignore next */
var isArray = Array.isArray || function (value) {
  return value && typeof value === 'object' ? toString.call(value) === '[object Array]' : false;
};

exports.isArray = isArray;
// Older IE versions do not directly support indexOf so we must implement our own, sadly.

function indexOf(array, value) {
  for (var i = 0, len = array.length; i < len; i++) {
    if (array[i] === value) {
      return i;
    }
  }
  return -1;
}

function escapeExpression(string) {
  if (typeof string !== 'string') {
    // don't escape SafeStrings, since they're already safe
    if (string && string.toHTML) {
      return string.toHTML();
    } else if (string == null) {
      return '';
    } else if (!string) {
      return string + '';
    }

    // Force a string conversion as this will be done by the append regardless and
    // the regex test will do this transparently behind the scenes, causing issues if
    // an object's to string has escaped characters in it.
    string = '' + string;
  }

  if (!possible.test(string)) {
    return string;
  }
  return string.replace(badChars, escapeChar);
}

function isEmpty(value) {
  if (!value && value !== 0) {
    return true;
  } else if (isArray(value) && value.length === 0) {
    return true;
  } else {
    return false;
  }
}

function createFrame(object) {
  var frame = extend({}, object);
  frame._parent = object;
  return frame;
}

function blockParams(params, ids) {
  params.path = ids;
  return params;
}

function appendContextPath(contextPath, id) {
  return (contextPath ? contextPath + '.' : '') + id;
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,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