deRegExp property
RegExp for the German language =>(NEED IMPROVEMENT)<=
Language has code => LanguageCode.de
For strict mode => r'(?=.*äöüß
)'
Implementation
static final RegExp deRegExp = RegExp(
r'(?:[äöüÄÖÜß]|'
r'\b(ich|esse|einen|apfel|der|die|das|und|in|den|von|zu|mit|sich|ist|für|auf|ein|eine|nicht|als|auch|er|sie|es|haben|werden|wie|du)\b)',
caseSensitive: false,
unicode: true,
);