parse static method
Implementation
static List<ConditionKey> parse(String keys) {
keys = keys.trim();
if (keys.isEmpty) {
throw ArgumentError('Empty key');
}
var list = _keyRegExp.allMatches(keys).map((m) {
var s1 = m.group(1);
if (s1 != null) {
return ConditionKeyField(s1);
}
var s2 = m.group(2);
if (s2 != null) {
return ConditionKeyField(s2);
}
var field = m.group(3);
if (field != null) {
return ConditionKeyField(field);
}
var index = m.group(4);
if (index != null) {
var idx = int.parse(index);
return ConditionKeyIndex(idx);
}
throw StateError('Invalid match: $m');
}).toList();
return list;
}