'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;

// Sourced from lodash
// https://github.com/bestiejs/lodash/blob/master/LICENSE.txt
/* eslint-disable func-style */
exports.toString = toString;
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;
};

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

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;
}
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sourceMappingURL=data:application/json;base64,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