Language/Expressions/Strings/string_literal_t34.dart

// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// @dart = 2.9

/// @assertion
/// stringLiteral:
///   (multilineString | singleLineString)+
/// ;
/// singleLineString:
///   '"' stringContentDQ* '"' |
///   ''' stringContentSQ* ''' |
///   'r' ''' (~( ''' | NEWLINE ))* ''' |
///   'r' '"' (~( '"' | NEWLINE ))* '"'
/// ;
/// stringContentDQ:
///   ~( '\' | '"' | '$' | NEWLINE ) |
///   '\' ~( NEWLINE ) |
///   stringInterpolation
/// ;
/// stringContentSQ:
///   ~( '\' | ''' | '$' | NEWLINE ) |
///   '\' ~( NEWLINE ) |
///   stringInterpolation
/// ;
/// NEWLINE:
///   '\n' |
///   '\r'
/// ;
/// @description Checks that a string can contain any unicode new line symbols
/// other than \r and \n.
/// @author msyabro
/// @reviewer iefremov


main() {
  "verticaltab";
  "formfeed";
  "next…line";
  "line
separator";
  "paragraph
separator";

  'verticaltab';
  'formfeed';
  'next…line';
  'line
separator';
  'paragraph
separator';

  r"verticaltab";
  r"formfeed";
  r"next…line";
  r"line
separator";
  r"paragraph
separator";

  r'verticaltab';
  r'formfeed';
  r'next…line';
  r'line
separator';
  r'paragraph
separator';
}