simple method
Parser<Filter>
simple(
)
override
Implementation
@override
Parser<Filter> simple() => super.simple().map((each) {
var token = each[1] as Token;
var operator = token.value as String;
var attrName = each[0];
var val = each[2];
switch (operator) {
case '=':
return Filter.equals(attrName, val);
case '~=':
return Filter.approx(attrName, val);
case '>=':
return Filter.greaterOrEquals(attrName, val);
case '<=':
return Filter.lessOrEquals(attrName, val);
default:
throw Exception('Parser error (bad grammar spec). Report this bug');
}
});