'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 = {
  '&': '&amp;',
  '<': '&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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