tokenName static method
Implementation
static String? tokenName(String? value) {
if (value != null) {
if (value.isEmpty) {
return 'Token name can\'t be empty';
}
if (!tokenNameRegExp.hasMatch(value)) {
return 'Token name must contain only alphanumeric characters';
}
if (value.length > tokenNameMaxLength) {
return 'Token name must have maximum $tokenNameMaxLength characters';
}
return null;
} else {
return 'Value is null';
}
}