| library petitparser.core.characters.lowercase; |
| |
| import 'package:petitparser/src/core/characters/parser.dart'; |
| import 'package:petitparser/src/core/characters/predicate.dart'; |
| import 'package:petitparser/src/core/parser.dart'; |
| |
| /// Returns a parser that accepts any lowercase character. |
| Parser lowercase([String message = 'lowercase letter expected']) { |
| return new CharacterParser(const LowercaseCharPredicate(), message); |
| } |
| |
| class LowercaseCharPredicate implements CharacterPredicate { |
| const LowercaseCharPredicate(); |
| |
| @override |
| bool test(int value) => 97 <= value && value <= 122; |
| } |