MyEMS / myems

admin/js/angular/angular-message-format.js

/**
 * @license AngularJS v1.8.2
 * (c) 2010-2020 Google LLC. http://angularjs.org
 * License: MIT
 */
(function(window, angular) {'use strict';

// NOTE: ADVANCED_OPTIMIZATIONS mode.
//
// This file is compiled with Closure compiler's ADVANCED_OPTIMIZATIONS flag! Be wary of using
// constructs incompatible with that mode.

/* global isFunction: false */
/* global noop: false */
/* global toJson: false */
/* global $$stringify: false */

// Convert an index into the string into line/column for use in error messages
// As such, this doesn't have to be efficient.
function indexToLineAndColumn(text, index) {
  var lines = text.split(/\n/g);
  for (var i = 0; i < lines.length; i++) {
    var line = lines[i];
    if (index >= line.length) {
      index -= line.length;
    } else {
      return { line: i + 1, column: index + 1 };
    }
  }

There is no return statement in this branch, but you do return something in other branches. Did you maybe miss it? If you do not want to return anything, consider adding return undefined; explicitly.

}
var PARSE_CACHE_FOR_TEXT_LITERALS = Object.create(null);

function parseTextLiteral(text) {
  var cachedFn = PARSE_CACHE_FOR_TEXT_LITERALS[text];
  if (cachedFn != null) {
    return cachedFn;
  }
  function parsedFn(context) { return text; }
  parsedFn['$$watchDelegate'] = function watchDelegate(scope, listener, objectEquality) {
    var unwatch = scope['$watch'](noop,
        function textLiteralWatcher() {
          listener(text, text, scope);
          unwatch();
        },
        objectEquality);
    return unwatch;
  };
  PARSE_CACHE_FOR_TEXT_LITERALS[text] = parsedFn;
  parsedFn['exp'] = text; // Needed to pretend to be $interpolate for tests copied from interpolateSpec.js
  parsedFn['expressions'] = []; // Require this to call $compile.$$addBindingInfo() which allows Protractor to find elements by binding.
  return parsedFn;
}

function subtractOffset(expressionFn, offset) {
  if (offset === 0) {
    return expressionFn;
  }
  function minusOffset(value) {
    return (value == null) ? value : value - offset;
  }
  function parsedFn(context) { return minusOffset(expressionFn(context)); }
  var unwatch;
  parsedFn['$$watchDelegate'] = function watchDelegate(scope, listener, objectEquality) {
    unwatch = scope['$watch'](expressionFn,
        function pluralExpressionWatchListener(newValue, oldValue) {
          listener(minusOffset(newValue), minusOffset(oldValue), scope);
        },
        objectEquality);
    return unwatch;
  };
  return parsedFn;
}

// NOTE: ADVANCED_OPTIMIZATIONS mode.
//
// This file is compiled with Closure compiler's ADVANCED_OPTIMIZATIONS flag! Be wary of using
// constructs incompatible with that mode.

/* global $interpolateMinErr: false */
/* global isFunction: false */
/* global noop: false */

/**
 * @constructor
 * @private
 */
function MessageSelectorBase(expressionFn, choices) {
  var self = this;
  this.expressionFn = expressionFn;
  this.choices = choices;
  if (choices['other'] === undefined) {
    throw $interpolateMinErr('reqother', '“other” is a required option.');
  }
  this.parsedFn = function(context) { return self.getResult(context); };
  this.parsedFn['$$watchDelegate'] = function $$watchDelegate(scope, listener, objectEquality) {
    return self.watchDelegate(scope, listener, objectEquality);
  };
  this.parsedFn['exp'] = expressionFn['exp'];
  this.parsedFn['expressions'] = expressionFn['expressions'];
}

MessageSelectorBase.prototype.getMessageFn = function getMessageFn(value) {
  return this.choices[this.categorizeValue(value)];
};

MessageSelectorBase.prototype.getResult = function getResult(context) {
  return this.getMessageFn(this.expressionFn(context))(context);
};

MessageSelectorBase.prototype.watchDelegate = function watchDelegate(scope, listener, objectEquality) {
  var watchers = new MessageSelectorWatchers(this, scope, listener, objectEquality);
  return function() { watchers.cancelWatch(); };
};

/**
 * @constructor
 * @private
 */
function MessageSelectorWatchers(msgSelector, scope, listener, objectEquality) {
  var self = this;
  this.scope = scope;
  this.msgSelector = msgSelector;
  this.listener = listener;
  this.objectEquality = objectEquality;
  this.lastMessage = undefined;
  this.messageFnWatcher = noop;
  var expressionFnListener = function(newValue, oldValue) { return self.expressionFnListener(newValue, oldValue); };
  this.expressionFnWatcher = scope['$watch'](msgSelector.expressionFn, expressionFnListener, objectEquality);
}

MessageSelectorWatchers.prototype.expressionFnListener = function expressionFnListener(newValue, oldValue) {
  var self = this;
  this.messageFnWatcher();
  var messageFnListener = function(newMessage, oldMessage) { return self.messageFnListener(newMessage, oldMessage); };
  var messageFn = this.msgSelector.getMessageFn(newValue);
  this.messageFnWatcher = this.scope['$watch'](messageFn, messageFnListener, this.objectEquality);
};

MessageSelectorWatchers.prototype.messageFnListener = function messageFnListener(newMessage, oldMessage) {
  this.listener.call(null, newMessage, newMessage === oldMessage ? newMessage : this.lastMessage, this.scope);
  this.lastMessage = newMessage;
};

MessageSelectorWatchers.prototype.cancelWatch = function cancelWatch() {
  this.expressionFnWatcher();
  this.messageFnWatcher();
};

/**
 * @constructor
 * @extends MessageSelectorBase
 * @private
 */
function SelectMessage(expressionFn, choices) {
  MessageSelectorBase.call(this, expressionFn, choices);
}

function SelectMessageProto() {}
SelectMessageProto.prototype = MessageSelectorBase.prototype;

SelectMessage.prototype = new SelectMessageProto();
SelectMessage.prototype.categorizeValue = function categorizeSelectValue(value) {
  return (this.choices[value] !== undefined) ? value : 'other';
};

/**
 * @constructor
 * @extends MessageSelectorBase
 * @private
 */
function PluralMessage(expressionFn, choices, offset, pluralCat) {
  MessageSelectorBase.call(this, expressionFn, choices);
  this.offset = offset;
  this.pluralCat = pluralCat;
}

function PluralMessageProto() {}
PluralMessageProto.prototype = MessageSelectorBase.prototype;

PluralMessage.prototype = new PluralMessageProto();
PluralMessage.prototype.categorizeValue = function categorizePluralValue(value) {
  if (isNaN(value)) {
    return 'other';
  } else if (this.choices[value] !== undefined) {
    return value;
  } else {
    var category = this.pluralCat(value - this.offset);
    return (this.choices[category] !== undefined) ? category : 'other';
  }
};

// NOTE: ADVANCED_OPTIMIZATIONS mode.
//
// This file is compiled with Closure compiler's ADVANCED_OPTIMIZATIONS flag! Be wary of using
// constructs incompatible with that mode.

/* global $interpolateMinErr: false */
/* global isFunction: false */
/* global parseTextLiteral: false */

/**
 * @constructor
 * @private
 */
function InterpolationParts(trustedContext, allOrNothing) {
  this.trustedContext = trustedContext;
  this.allOrNothing = allOrNothing;
  this.textParts = [];
  this.expressionFns = [];
  this.expressionIndices = [];
  this.partialText = '';
  this.concatParts = null;
}

InterpolationParts.prototype.flushPartialText = function flushPartialText() {
  if (this.partialText) {
    if (this.concatParts == null) {
      this.textParts.push(this.partialText);
    } else {
      this.textParts.push(this.concatParts.join(''));
      this.concatParts = null;
    }
    this.partialText = '';
  }
};

InterpolationParts.prototype.addText = function addText(text) {
  if (text.length) {
    if (!this.partialText) {
      this.partialText = text;
    } else if (this.concatParts) {
      this.concatParts.push(text);
    } else {
      this.concatParts = [this.partialText, text];
    }
  }
};

InterpolationParts.prototype.addExpressionFn = function addExpressionFn(expressionFn) {
  this.flushPartialText();
  this.expressionIndices.push(this.textParts.length);
  this.expressionFns.push(expressionFn);
  this.textParts.push('');
};

InterpolationParts.prototype.getExpressionValues = function getExpressionValues(context) {
  var expressionValues = new Array(this.expressionFns.length);
  for (var i = 0; i < this.expressionFns.length; i++) {
    expressionValues[i] = this.expressionFns[i](context);
  }
  return expressionValues;
};

InterpolationParts.prototype.getResult = function getResult(expressionValues) {
  for (var i = 0; i < this.expressionIndices.length; i++) {
    var expressionValue = expressionValues[i];
    if (this.allOrNothing && expressionValue === undefined) return;

Are you sure this return statement is not missing an argument? If this is intended, consider adding an explicit undefined like return undefined;.

    this.textParts[this.expressionIndices[i]] = expressionValue;
  }
  return this.textParts.join('');
};


InterpolationParts.prototype.toParsedFn = function toParsedFn(mustHaveExpression, originalText) {
  var self = this;
  this.flushPartialText();
  if (mustHaveExpression && this.expressionFns.length === 0) {
    return undefined;
  }
  if (this.textParts.length === 0) {
    return parseTextLiteral('');
  }
  if (this.trustedContext && this.textParts.length > 1) {
    $interpolateMinErr['throwNoconcat'](originalText);
  }
  if (this.expressionFns.length === 0) {
    if (this.textParts.length !== 1) { this.errorInParseLogic(); }
    return parseTextLiteral(this.textParts[0]);
  }
  var parsedFn = function(context) {
    return self.getResult(self.getExpressionValues(context));
  };
  parsedFn['$$watchDelegate'] = function $$watchDelegate(scope, listener, objectEquality) {
    return self.watchDelegate(scope, listener, objectEquality);
  };

  parsedFn['exp'] = originalText; // Needed to pretend to be $interpolate for tests copied from interpolateSpec.js
  parsedFn['expressions'] = new Array(this.expressionFns.length); // Require this to call $compile.$$addBindingInfo() which allows Protractor to find elements by binding.
  for (var i = 0; i < this.expressionFns.length; i++) {
    parsedFn['expressions'][i] = this.expressionFns[i]['exp'];
  }

  return parsedFn;
};

InterpolationParts.prototype.watchDelegate = function watchDelegate(scope, listener, objectEquality) {
  var watcher = new InterpolationPartsWatcher(this, scope, listener, objectEquality);
  return function() { watcher.cancelWatch(); };
};

function InterpolationPartsWatcher(interpolationParts, scope, listener, objectEquality) {
  this.interpolationParts = interpolationParts;
  this.scope = scope;
  this.previousResult = (undefined);
  this.listener = listener;
  var self = this;
  this.expressionFnsWatcher = scope['$watchGroup'](interpolationParts.expressionFns, function(newExpressionValues, oldExpressionValues) {
    self.watchListener(newExpressionValues, oldExpressionValues);
  });
}

InterpolationPartsWatcher.prototype.watchListener = function watchListener(newExpressionValues, oldExpressionValues) {
  var result = this.interpolationParts.getResult(newExpressionValues);
  this.listener.call(null, result, newExpressionValues === oldExpressionValues ? result : this.previousResult, this.scope);
  this.previousResult = result;
};

InterpolationPartsWatcher.prototype.cancelWatch = function cancelWatch() {
  this.expressionFnsWatcher();
};

// NOTE: ADVANCED_OPTIMIZATIONS mode.
//
// This file is compiled with Closure compiler's ADVANCED_OPTIMIZATIONS flag! Be wary of using
// constructs incompatible with that mode.

/* global $interpolateMinErr: false */
/* global indexToLineAndColumn: false */
/* global InterpolationParts: false */
/* global PluralMessage: false */
/* global SelectMessage: false */
/* global subtractOffset: false */

// The params src and dst are exactly one of two types: NestedParserState or MessageFormatParser.
// This function is fully optimized by V8. (inspect via IRHydra or --trace-deopt.)
// The idea behind writing it this way is to avoid repeating oneself.  This is the ONE place where
// the parser state that is saved/restored when parsing nested mustaches is specified.
function copyNestedParserState(src, dst) {
  dst.expressionFn = src.expressionFn;
  dst.expressionMinusOffsetFn = src.expressionMinusOffsetFn;
  dst.pluralOffset = src.pluralOffset;
  dst.choices = src.choices;
  dst.choiceKey = src.choiceKey;
  dst.interpolationParts = src.interpolationParts;
  dst.ruleChoiceKeyword = src.ruleChoiceKeyword;
  dst.msgStartIndex = src.msgStartIndex;
  dst.expressionStartIndex = src.expressionStartIndex;
}

function NestedParserState(parser) {
  copyNestedParserState(parser, this);
}

/**
 * @constructor
 * @private
 */
function MessageFormatParser(text, startIndex, $parse, pluralCat, stringifier,
                             mustHaveExpression, trustedContext, allOrNothing) {
  this.text = text;
  this.index = startIndex || 0;
  this.$parse = $parse;
  this.pluralCat = pluralCat;
  this.stringifier = stringifier;
  this.mustHaveExpression = !!mustHaveExpression;
  this.trustedContext = trustedContext;
  this.allOrNothing = !!allOrNothing;
  this.expressionFn = null;
  this.expressionMinusOffsetFn = null;
  this.pluralOffset = null;
  this.choices = null;
  this.choiceKey = null;
  this.interpolationParts = null;
  this.msgStartIndex = null;
  this.nestedStateStack = [];
  this.parsedFn = null;
  this.rule = null;
  this.ruleStack = null;
  this.ruleChoiceKeyword = null;
  this.interpNestLevel = null;
  this.expressionStartIndex = null;
  this.stringStartIndex = null;
  this.stringQuote = null;
  this.stringInterestsRe = null;
  this.angularOperatorStack = null;
  this.textPart = null;
}

// preserve v8 optimization.
var EMPTY_STATE = new NestedParserState(new MessageFormatParser(
        /* text= */ '', /* startIndex= */ 0, /* $parse= */ null, /* pluralCat= */ null, /* stringifier= */ null,
        /* mustHaveExpression= */ false, /* trustedContext= */ null, /* allOrNothing */ false));

MessageFormatParser.prototype.pushState = function pushState() {
  this.nestedStateStack.push(new NestedParserState(this));
  copyNestedParserState(EMPTY_STATE, this);
};

MessageFormatParser.prototype.popState = function popState() {
  if (this.nestedStateStack.length === 0) {
    this.errorInParseLogic();
  }
  var previousState = this.nestedStateStack.pop();
  copyNestedParserState(previousState, this);
};

// Oh my JavaScript!  Who knew you couldn't match a regex at a specific
// location in a string but will always search forward?!
// Apparently you'll be growing this ability via the sticky flag (y) in
// ES6.  I'll just to work around you for now.
MessageFormatParser.prototype.matchRe = function matchRe(re, search) {
  re.lastIndex = this.index;
  var match = re.exec(this.text);
  if (match != null && (search === true || (match.index === this.index))) {
    this.index = re.lastIndex;
    return match;
  }
  return null;
};

MessageFormatParser.prototype.searchRe = function searchRe(re) {
  return this.matchRe(re, true);
};


MessageFormatParser.prototype.consumeRe = function consumeRe(re) {
  // Without the sticky flag, we can't use the .test() method to consume a
  // match at the current index.  Instead, we'll use the slower .exec() method
  // and verify match.index.
  return !!this.matchRe(re);
};

// Run through our grammar avoiding deeply nested function call chains.
MessageFormatParser.prototype.run = function run(initialRule) {
  this.ruleStack = [initialRule];
  do {
    this.rule = this.ruleStack.pop();
    while (this.rule) {
      this.rule();
    }
    this.assertRuleOrNull(this.rule);
  } while (this.ruleStack.length > 0);
};

MessageFormatParser.prototype.errorInParseLogic = function errorInParseLogic() {
    throw $interpolateMinErr('logicbug',
        'The messageformat parser has encountered an internal error.  Please file a github issue against the AngularJS project and provide this message text that triggers the bug.  Text: “{0}”',
        this.text);
};

MessageFormatParser.prototype.assertRuleOrNull = function assertRuleOrNull(rule) {
  if (rule === undefined) {
    this.errorInParseLogic();
  }
};

var NEXT_WORD_RE = /\s*(\w+)\s*/g;
MessageFormatParser.prototype.errorExpecting = function errorExpecting() {
  // What was wrong with the syntax? Unsupported type, missing comma, or something else?
  var match = this.matchRe(NEXT_WORD_RE), position;
  if (match == null) {
    position = indexToLineAndColumn(this.text, this.index);
    throw $interpolateMinErr('reqarg',
        'Expected one of “plural” or “select” at line {0}, column {1} of text “{2}”',
        position.line, position.column, this.text);
  }
  var word = match[1];
  if (word === 'select' || word === 'plural') {
    position = indexToLineAndColumn(this.text, this.index);
    throw $interpolateMinErr('reqcomma',
        'Expected a comma after the keyword “{0}” at line {1}, column {2} of text “{3}”',
        word, position.line, position.column, this.text);
  } else {
    position = indexToLineAndColumn(this.text, this.index);
    throw $interpolateMinErr('unknarg',
        'Unsupported keyword “{0}” at line {0}, column {1}. Only “plural” and “select” are currently supported.  Text: “{3}”',
        word, position.line, position.column, this.text);
  }
};

var STRING_START_RE = /['"]/g;
MessageFormatParser.prototype.ruleString = function ruleString() {
  var match = this.matchRe(STRING_START_RE);
  if (match == null) {
    var position = indexToLineAndColumn(this.text, this.index);
    throw $interpolateMinErr('wantstring',
        'Expected the beginning of a string at line {0}, column {1} in text “{2}”',
        position.line, position.column, this.text);
  }
  this.startStringAtMatch(match);
};

MessageFormatParser.prototype.startStringAtMatch = function startStringAtMatch(match) {
  this.stringStartIndex = match.index;
  this.stringQuote = match[0];
  this.stringInterestsRe = this.stringQuote === '\'' ? SQUOTED_STRING_INTEREST_RE : DQUOTED_STRING_INTEREST_RE;
  this.rule = this.ruleInsideString;
};

var SQUOTED_STRING_INTEREST_RE = /\\(?:\\|'|u[0-9A-Fa-f]{4}|x[0-9A-Fa-f]{2}|[0-7]{3}|\r\n|\n|[\s\S])|'/g;
var DQUOTED_STRING_INTEREST_RE = /\\(?:\\|"|u[0-9A-Fa-f]{4}|x[0-9A-Fa-f]{2}|[0-7]{3}|\r\n|\n|[\s\S])|"/g;
MessageFormatParser.prototype.ruleInsideString = function ruleInsideString() {
  var match = this.searchRe(this.stringInterestsRe);
  if (match == null) {
    var position = indexToLineAndColumn(this.text, this.stringStartIndex);
    throw $interpolateMinErr('untermstr',
        'The string beginning at line {0}, column {1} is unterminated in text “{2}”',
        position.line, position.column, this.text);
  }
  if (match[0] === this.stringQuote) {
    this.rule = null;
  }
};

var PLURAL_OR_SELECT_ARG_TYPE_RE = /\s*(plural|select)\s*,\s*/g;
MessageFormatParser.prototype.rulePluralOrSelect = function rulePluralOrSelect() {
  var match = this.searchRe(PLURAL_OR_SELECT_ARG_TYPE_RE);
  if (match == null) {
    this.errorExpecting();
  }
  var argType = match[1];
  switch (argType) {
    case 'plural': this.rule = this.rulePluralStyle; break;
    case 'select': this.rule = this.ruleSelectStyle; break;
    default: this.errorInParseLogic();
  }
};

MessageFormatParser.prototype.rulePluralStyle = function rulePluralStyle() {
  this.choices = Object.create(null);
  this.ruleChoiceKeyword = this.rulePluralValueOrKeyword;
  this.rule = this.rulePluralOffset;
};

MessageFormatParser.prototype.ruleSelectStyle = function ruleSelectStyle() {
  this.choices = Object.create(null);
  this.ruleChoiceKeyword = this.ruleSelectKeyword;
  this.rule = this.ruleSelectKeyword;
};

var NUMBER_RE = /[0]|(?:[1-9][0-9]*)/g;
var PLURAL_OFFSET_RE = new RegExp('\\s*offset\\s*:\\s*(' + NUMBER_RE.source + ')', 'g');

MessageFormatParser.prototype.rulePluralOffset = function rulePluralOffset() {
  var match = this.matchRe(PLURAL_OFFSET_RE);
  this.pluralOffset = (match == null) ? 0 : parseInt(match[1], 10);
  this.expressionMinusOffsetFn = subtractOffset(this.expressionFn, this.pluralOffset);
  this.rule = this.rulePluralValueOrKeyword;
};

MessageFormatParser.prototype.assertChoiceKeyIsNew = function assertChoiceKeyIsNew(choiceKey, index) {
  if (this.choices[choiceKey] !== undefined) {
    var position = indexToLineAndColumn(this.text, index);
    throw $interpolateMinErr('dupvalue',
        'The choice “{0}” is specified more than once. Duplicate key is at line {1}, column {2} in text “{3}”',
        choiceKey, position.line, position.column, this.text);
  }
};

var SELECT_KEYWORD = /\s*(\w+)/g;
MessageFormatParser.prototype.ruleSelectKeyword = function ruleSelectKeyword() {
  var match = this.matchRe(SELECT_KEYWORD);
  if (match == null) {
    this.parsedFn = new SelectMessage(this.expressionFn, this.choices).parsedFn;
    this.rule = null;
    return;
  }
  this.choiceKey = match[1];
  this.assertChoiceKeyIsNew(this.choiceKey, match.index);
  this.rule = this.ruleMessageText;
};

var EXPLICIT_VALUE_OR_KEYWORD_RE = new RegExp('\\s*(?:(?:=(' + NUMBER_RE.source + '))|(\\w+))', 'g');
MessageFormatParser.prototype.rulePluralValueOrKeyword = function rulePluralValueOrKeyword() {
  var match = this.matchRe(EXPLICIT_VALUE_OR_KEYWORD_RE);
  if (match == null) {
    this.parsedFn = new PluralMessage(this.expressionFn, this.choices, this.pluralOffset, this.pluralCat).parsedFn;
    this.rule = null;
    return;
  }
  if (match[1] != null) {
    this.choiceKey = parseInt(match[1], 10);
  } else {
    this.choiceKey = match[2];
  }
  this.assertChoiceKeyIsNew(this.choiceKey, match.index);
  this.rule = this.ruleMessageText;
};

var BRACE_OPEN_RE = /\s*\{/g;
var BRACE_CLOSE_RE = /}/g;
MessageFormatParser.prototype.ruleMessageText = function ruleMessageText() {
  if (!this.consumeRe(BRACE_OPEN_RE)) {
    var position = indexToLineAndColumn(this.text, this.index);
    throw $interpolateMinErr('reqopenbrace',
        'The plural choice “{0}” must be followed by a message in braces at line {1}, column {2} in text “{3}”',
        this.choiceKey, position.line, position.column, this.text);
  }
  this.msgStartIndex = this.index;
  this.interpolationParts = new InterpolationParts(this.trustedContext, this.allOrNothing);
  this.rule = this.ruleInInterpolationOrMessageText;
};

// Note: Since "\" is used as an escape character, don't allow it to be part of the
// startSymbol/endSymbol when I add the feature to allow them to be redefined.
var INTERP_OR_END_MESSAGE_RE = /\\.|{{|}/g;
var INTERP_OR_PLURALVALUE_OR_END_MESSAGE_RE = /\\.|{{|#|}/g;
var ESCAPE_OR_MUSTACHE_BEGIN_RE = /\\.|{{/g;
MessageFormatParser.prototype.advanceInInterpolationOrMessageText = function advanceInInterpolationOrMessageText() {
  var currentIndex = this.index, match;
  if (this.ruleChoiceKeyword == null) { // interpolation
    match = this.searchRe(ESCAPE_OR_MUSTACHE_BEGIN_RE);
    if (match == null) { // End of interpolation text.  Nothing more to process.
      this.textPart = this.text.substring(currentIndex);
      this.index = this.text.length;
      return null;
    }
  } else {
    match = this.searchRe(this.ruleChoiceKeyword === this.rulePluralValueOrKeyword ?
                          INTERP_OR_PLURALVALUE_OR_END_MESSAGE_RE : INTERP_OR_END_MESSAGE_RE);
    if (match == null) {
      var position = indexToLineAndColumn(this.text, this.msgStartIndex);
      throw $interpolateMinErr('reqendbrace',
          'The plural/select choice “{0}” message starting at line {1}, column {2} does not have an ending closing brace. Text “{3}”',
          this.choiceKey, position.line, position.column, this.text);
    }
  }
  // match is non-null.
  var token = match[0];
  this.textPart = this.text.substring(currentIndex, match.index);
  return token;
};

MessageFormatParser.prototype.ruleInInterpolationOrMessageText = function ruleInInterpolationOrMessageText() {
  var currentIndex = this.index;
  var token = this.advanceInInterpolationOrMessageText();
  if (token == null) {
    // End of interpolation text.  Nothing more to process.
    this.index = this.text.length;
    this.interpolationParts.addText(this.text.substring(currentIndex));
    this.rule = null;
    return;
  }
  if (token[0] === '\\') {
    // unescape next character and continue
    this.interpolationParts.addText(this.textPart + token[1]);
    return;
  }
  this.interpolationParts.addText(this.textPart);
  if (token === '{{') {
    this.pushState();
    this.ruleStack.push(this.ruleEndMustacheInInterpolationOrMessage);
    this.rule = this.ruleEnteredMustache;
  } else if (token === '}') {
    this.choices[this.choiceKey] = this.interpolationParts.toParsedFn(/*mustHaveExpression=*/false, this.text);
    this.rule = this.ruleChoiceKeyword;
  } else if (token === '#') {
    this.interpolationParts.addExpressionFn(this.expressionMinusOffsetFn);
  } else {
    this.errorInParseLogic();
  }
};

MessageFormatParser.prototype.ruleInterpolate = function ruleInterpolate() {
  this.interpolationParts = new InterpolationParts(this.trustedContext, this.allOrNothing);
  this.rule = this.ruleInInterpolation;
};

MessageFormatParser.prototype.ruleInInterpolation = function ruleInInterpolation() {
  var currentIndex = this.index;
  var match = this.searchRe(ESCAPE_OR_MUSTACHE_BEGIN_RE);
  if (match == null) {
    // End of interpolation text.  Nothing more to process.
    this.index = this.text.length;
    this.interpolationParts.addText(this.text.substring(currentIndex));
    this.parsedFn = this.interpolationParts.toParsedFn(this.mustHaveExpression, this.text);
    this.rule = null;
    return;
  }
  var token = match[0];
  if (token[0] === '\\') {
    // unescape next character and continue
    this.interpolationParts.addText(this.text.substring(currentIndex, match.index) + token[1]);
    return;
  }
  this.interpolationParts.addText(this.text.substring(currentIndex, match.index));
  this.pushState();
  this.ruleStack.push(this.ruleInterpolationEndMustache);
  this.rule = this.ruleEnteredMustache;
};

MessageFormatParser.prototype.ruleInterpolationEndMustache = function ruleInterpolationEndMustache() {
  var expressionFn = this.parsedFn;
  this.popState();
  this.interpolationParts.addExpressionFn(expressionFn);
  this.rule = this.ruleInInterpolation;
};

MessageFormatParser.prototype.ruleEnteredMustache = function ruleEnteredMustache() {
  this.parsedFn = null;
  this.ruleStack.push(this.ruleEndMustache);
  this.rule = this.ruleAngularExpression;
};

MessageFormatParser.prototype.ruleEndMustacheInInterpolationOrMessage = function ruleEndMustacheInInterpolationOrMessage() {
  var expressionFn = this.parsedFn;
  this.popState();
  this.interpolationParts.addExpressionFn(expressionFn);
  this.rule = this.ruleInInterpolationOrMessageText;
};



var INTERP_END_RE = /\s*}}/g;
MessageFormatParser.prototype.ruleEndMustache = function ruleEndMustache() {
  var match = this.matchRe(INTERP_END_RE);
  if (match == null) {
    var position = indexToLineAndColumn(this.text, this.index);
    throw $interpolateMinErr('reqendinterp',
        'Expecting end of interpolation symbol, “{0}”, at line {1}, column {2} in text “{3}”',
        '}}', position.line, position.column, this.text);
  }
  if (this.parsedFn == null) {
    // If we parsed a MessageFormat extension, (e.g. select/plural today, maybe more some other
    // day), then the result *has* to be a string and those rules would have already set
    // this.parsedFn.  If there was no MessageFormat extension, then there is no requirement to
    // stringify the result and parsedFn isn't set.  We set it here.  While we could have set it
    // unconditionally when exiting the AngularJS expression, I intend for us to not just replace
    // $interpolate, but also to replace $parse in a future version (so ng-bind can work), and in
    // such a case we do not want to unnecessarily stringify something if it's not going to be used
    // in a string context.
    this.parsedFn = this.$parse(this.expressionFn, this.stringifier);
    this.parsedFn['exp'] = this.expressionFn['exp']; // Needed to pretend to be $interpolate for tests copied from interpolateSpec.js
    this.parsedFn['expressions'] = this.expressionFn['expressions']; // Require this to call $compile.$$addBindingInfo() which allows Protractor to find elements by binding.
  }
  this.rule = null;
};

MessageFormatParser.prototype.ruleAngularExpression = function ruleAngularExpression() {
  this.angularOperatorStack = [];
  this.expressionStartIndex = this.index;
  this.rule = this.ruleInAngularExpression;
};

function getEndOperator(opBegin) {
  switch (opBegin) {
    case '{': return '}';
    case '[': return ']';
    case '(': return ')';
    default: return null;
  }
}

function getBeginOperator(opEnd) {
  switch (opEnd) {
    case '}': return '{';
    case ']': return '[';
    case ')': return '(';
    default: return null;
  }
}

// TODO(chirayu): The interpolation endSymbol must also be accounted for. It
// just so happens that "}" is an operator so it's in the list below.  But we
// should support any other type of start/end interpolation symbol.
var INTERESTING_OPERATORS_RE = /[[\]{}()'",]/g;
MessageFormatParser.prototype.ruleInAngularExpression = function ruleInAngularExpression() {
  var match = this.searchRe(INTERESTING_OPERATORS_RE);
  var position;
  if (match == null) {
    if (this.angularOperatorStack.length === 0) {
      // This is the end of the AngularJS expression so this is actually a
      // success.  Note that when inside an interpolation, this means we even
      // consumed the closing interpolation symbols if they were curlies.  This
      // is NOT an error at this point but will become an error further up the
      // stack when the part that saw the opening curlies is unable to find the
      // closing ones.
      this.index = this.text.length;
      this.expressionFn = this.$parse(this.text.substring(this.expressionStartIndex, this.index));
      // Needed to pretend to be $interpolate for tests copied from interpolateSpec.js
      this.expressionFn['exp'] = this.text.substring(this.expressionStartIndex, this.index);
      this.expressionFn['expressions'] = this.expressionFn['expressions'];
      this.rule = null;
      return;
    }
    var innermostOperator = this.angularOperatorStack[0];
    throw $interpolateMinErr('badexpr',
        'Unexpected end of AngularJS expression.  Expecting operator “{0}” at the end of the text “{1}”',
        this.getEndOperator(innermostOperator), this.text);
  }
  var operator = match[0];
  if (operator === '\'' || operator === '"') {
    this.ruleStack.push(this.ruleInAngularExpression);
    this.startStringAtMatch(match);
    return;
  }
  if (operator === ',') {
    if (this.trustedContext) {
      position = indexToLineAndColumn(this.text, this.index);
      throw $interpolateMinErr('unsafe',
          'Use of select/plural MessageFormat syntax is currently disallowed in a secure context ({0}).  At line {1}, column {2} of text “{3}”',
          this.trustedContext, position.line, position.column, this.text);
    }
    // only the top level comma has relevance.
    if (this.angularOperatorStack.length === 0) {
      // todo: does this need to be trimmed?
      this.expressionFn = this.$parse(this.text.substring(this.expressionStartIndex, match.index));
      // Needed to pretend to be $interpolate for tests copied from interpolateSpec.js
      this.expressionFn['exp'] = this.text.substring(this.expressionStartIndex, match.index);
      this.expressionFn['expressions'] = this.expressionFn['expressions'];
      this.rule = null;
      this.rule = this.rulePluralOrSelect;
    }
    return;
  }
  if (getEndOperator(operator) != null) {
    this.angularOperatorStack.unshift(operator);
    return;
  }
  var beginOperator = getBeginOperator(operator);
  if (beginOperator == null) {
    this.errorInParseLogic();
  }
  if (this.angularOperatorStack.length > 0) {
    if (beginOperator === this.angularOperatorStack[0]) {
      this.angularOperatorStack.shift();
      return;
    }
    position = indexToLineAndColumn(this.text, this.index);
    throw $interpolateMinErr('badexpr',
        'Unexpected operator “{0}” at line {1}, column {2} in text. Was expecting “{3}”. Text: “{4}”',
        operator, position.line, position.column, getEndOperator(this.angularOperatorStack[0]), this.text);
  }
  // We are trying to pop off the operator stack but there really isn't anything to pop off.
  this.index = match.index;
  this.expressionFn = this.$parse(this.text.substring(this.expressionStartIndex, this.index));
  // Needed to pretend to be $interpolate for tests copied from interpolateSpec.js
  this.expressionFn['exp'] = this.text.substring(this.expressionStartIndex, this.index);
  this.expressionFn['expressions'] = this.expressionFn['expressions'];
  this.rule = null;
};

// NOTE: ADVANCED_OPTIMIZATIONS mode.
//
// This file is compiled with Closure compiler's ADVANCED_OPTIMIZATIONS flag! Be wary of using
// constructs incompatible with that mode.

/* global $interpolateMinErr: true */
/* global isFunction: true */
/* global noop: true */
/* global toJson: true */
/* global MessageFormatParser: false */

/**
 * @ngdoc module
 * @name ngMessageFormat
 * @packageName angular-message-format
 *
 * @description
 *
 * ## What is  ngMessageFormat?
 *
 * The ngMessageFormat module extends the AngularJS {@link ng.$interpolate `$interpolate`} service
 * with a syntax for handling pluralization and gender specific messages, which is based on the
 * [ICU MessageFormat syntax][ICU].
 *
 * See [the design doc][ngMessageFormat doc] for more information.
 *
 * [ICU]: http://userguide.icu-project.org/formatparse/messages#TOC-MessageFormat
 * [ngMessageFormat doc]: https://docs.google.com/a/google.com/document/d/1pbtW2yvtmFBikfRrJd8VAsabiFkKezmYZ_PbgdjQOVU/edit
 *
 * ## Examples
 *
 * ### Gender
 *
 * This example uses the "select" keyword to specify the message based on gender.
 *
 * <example name="ngMessageFormat-example-gender" module="msgFmtExample" deps="angular-message-format.js">
 * <file name="index.html">
 *  <div ng-controller="AppController">
 *    Select Recipient:<br>
      <select ng-model="recipient" ng-options="person as person.name for person in recipients">
      </select>
      <p>{{recipient.gender, select,
                male {{{recipient.name}} unwrapped his gift. }
                female {{{recipient.name}} unwrapped her gift. }
                other {{{recipient.name}} unwrapped their gift. }
      }}</p>
 *  </div>
 * </file>
 * <file name="script.js">
 *   function Person(name, gender) {
 *     this.name = name;
 *     this.gender = gender;
 *   }
 *
 *   var alice   = new Person('Alice', 'female'),
 *       bob     = new Person('Bob', 'male'),
 *       ashley = new Person('Ashley', '');
 *
 *   angular.module('msgFmtExample', ['ngMessageFormat'])
 *     .controller('AppController', ['$scope', function($scope) {
 *         $scope.recipients = [alice, bob, ashley];
 *         $scope.recipient = $scope.recipients[0];
 *       }]);
 * </file>
 * </example>
 *
 * ### Plural
 *
 * This example shows how the "plural" keyword is used to account for a variable number of entities.
 * The "#" variable holds the current number and can be embedded in the message.
 *
 * Note that "=1" takes precedence over "one".
 *
 * The example also shows the "offset" keyword, which allows you to offset the value of the "#" variable.
 *
 * <example name="ngMessageFormat-example-plural" module="msgFmtExample" deps="angular-message-format.js">
 * <file name="index.html">
 *   <div ng-controller="AppController">
 *    <button ng-click="recipients.pop()" id="decreaseRecipients">decreaseRecipients</button><br>
 *    Select recipients:<br>
 *    <select multiple size=5 ng-model="recipients" ng-options="person as person.name for person in people">
 *    </select><br>
 *     <p>{{recipients.length, plural, offset:1
 *             =0    {{{sender.name}} gave no gifts (\#=#)}
 *             =1    {{{sender.name}} gave a gift to {{recipients[0].name}} (\#=#)}
 *             one   {{{sender.name}} gave {{recipients[0].name}} and one other person a gift (\#=#)}
 *             other {{{sender.name}} gave {{recipients[0].name}} and # other people a gift (\#=#)}
 *           }}</p>
 *   </div>
 * </file>
 *
 * <file name="script.js">
 *   function Person(name, gender) {
 *     this.name = name;
 *     this.gender = gender;
 *   }
 *
 *   var alice   = new Person('Alice', 'female'),
 *       bob     = new Person('Bob', 'male'),
 *       sarah     = new Person('Sarah', 'female'),
 *       harry   = new Person('Harry Potter', 'male'),
 *       ashley   = new Person('Ashley', '');
 *
 *   angular.module('msgFmtExample', ['ngMessageFormat'])
 *     .controller('AppController', ['$scope', function($scope) {
 *         $scope.people = [alice, bob, sarah, ashley];
 *         $scope.recipients = [alice, bob, sarah];
 *         $scope.sender = harry;
 *       }]);
 * </file>
 *
 * <file name="protractor.js" type="protractor">
 *   describe('MessageFormat plural', function() {
 *
 *     it('should pluralize initial values', function() {
 *       var messageElem = element(by.binding('recipients.length')),
 *           decreaseRecipientsBtn = element(by.id('decreaseRecipients'));
 *
 *       expect(messageElem.getText()).toEqual('Harry Potter gave Alice and 2 other people a gift (#=2)');
 *       decreaseRecipientsBtn.click();
 *       expect(messageElem.getText()).toEqual('Harry Potter gave Alice and one other person a gift (#=1)');
 *       decreaseRecipientsBtn.click();
 *       expect(messageElem.getText()).toEqual('Harry Potter gave a gift to Alice (#=0)');
 *       decreaseRecipientsBtn.click();
 *       expect(messageElem.getText()).toEqual('Harry Potter gave no gifts (#=-1)');
 *     });
 *   });
 * </file>
 * </example>
 *
 * ### Plural and Gender together
 *
 * This example shows how you can specify gender rules for specific plural matches - in this case,
 * =1 is special cased for gender.
 * <example name="ngMessageFormat-example-plural-gender" module="msgFmtExample" deps="angular-message-format.js">
 *   <file name="index.html">
 *     <div ng-controller="AppController">
       Select recipients:<br>
       <select multiple size=5 ng-model="recipients" ng-options="person as person.name for person in people">
       </select><br>
        <p>{{recipients.length, plural,
          =0 {{{sender.name}} has not given any gifts to anyone.}
          =1 {  {{recipients[0].gender, select,
                 female { {{sender.name}} gave {{recipients[0].name}} her gift.}
                 male { {{sender.name}} gave {{recipients[0].name}} his gift.}
                 other { {{sender.name}} gave {{recipients[0].name}} their gift.}
                }}
              }
          other {{{sender.name}} gave {{recipients.length}} people gifts.}
          }}</p>
      </file>
 *    <file name="script.js">
 *      function Person(name, gender) {
 *        this.name = name;
 *        this.gender = gender;
 *      }
 *
 *      var alice   = new Person('Alice', 'female'),
 *          bob     = new Person('Bob', 'male'),
 *          harry   = new Person('Harry Potter', 'male'),
 *          ashley   = new Person('Ashley', '');
 *
 *      angular.module('msgFmtExample', ['ngMessageFormat'])
 *        .controller('AppController', ['$scope', function($scope) {
 *            $scope.people = [alice, bob, ashley];
 *            $scope.recipients = [alice];
 *            $scope.sender = harry;
 *          }]);
 *    </file>
    </example>
 */

var $$MessageFormatFactory = ['$parse', '$locale', '$sce', '$exceptionHandler', function $$messageFormat(
                               $parse,   $locale,   $sce,   $exceptionHandler) {

  function getStringifier(trustedContext, allOrNothing, text) {
    return function stringifier(value) {
      try {
        value = trustedContext ? $sce['getTrusted'](trustedContext, value) : $sce['valueOf'](value);
        return allOrNothing && (value === undefined) ? value : $$stringify(value);
      } catch (err) {
        $exceptionHandler($interpolateMinErr['interr'](text, err));

There is no return statement in this branch, but you do return something in other branches. Did you maybe miss it? If you do not want to return anything, consider adding return undefined; explicitly.

      }
    };
  }

  function interpolate(text, mustHaveExpression, trustedContext, allOrNothing) {
    var stringifier = getStringifier(trustedContext, allOrNothing, text);
    var parser = new MessageFormatParser(text, 0, $parse, $locale['pluralCat'], stringifier,
                                         mustHaveExpression, trustedContext, allOrNothing);
    parser.run(parser.ruleInterpolate);
    return parser.parsedFn;
  }

  return {
    'interpolate': interpolate
  };
}];

var $$interpolateDecorator = ['$$messageFormat', '$delegate', function $$interpolateDecorator($$messageFormat, $interpolate) {
  if ($interpolate['startSymbol']() !== '{{' || $interpolate['endSymbol']() !== '}}') {
    throw $interpolateMinErr('nochgmustache', 'angular-message-format.js currently does not allow you to use custom start and end symbols for interpolation.');
  }
  var interpolate = $$messageFormat['interpolate'];
  interpolate['startSymbol'] = $interpolate['startSymbol'];
  interpolate['endSymbol'] = $interpolate['endSymbol'];
  return interpolate;
}];

var $interpolateMinErr;
var isFunction;
var noop;
var toJson;
var $$stringify;

var ngModule = window['angular']['module']('ngMessageFormat', ['ng']);
ngModule['info']({ 'angularVersion': '1.8.2' });
ngModule['factory']('$$messageFormat', $$MessageFormatFactory);
ngModule['config'](['$provide', function($provide) {
  $interpolateMinErr = window['angular']['$interpolateMinErr'];
  isFunction = window['angular']['isFunction'];
  noop = window['angular']['noop'];
  toJson = window['angular']['toJson'];
  $$stringify = window['angular']['$$stringify'];

  $provide['decorator']('$interpolate', $$interpolateDecorator);
}]);


})(window, window.angular);