parseTrackName static method
dynamic
parseTrackName(
- dynamic trackName
Implementation
static parseTrackName(trackName) {
var matches = _trackRe.firstMatch(trackName);
if (matches == null) {
throw ('PropertyBinding: Cannot parse trackName: $trackName');
}
// var results = {
// // directoryName: matches[ 1 ], // (tschw) currently unused
// "nodeName": matches[ 2 ],
// "objectName": matches[ 3 ],
// "objectIndex": matches[ 4 ],
// "propertyName": matches[ 5 ], // required
// "propertyIndex": matches[ 6 ]
// };
var results = {
// directoryName: matches[ 1 ], // (tschw) currently unused
"nodeName": matches.group(2),
"objectName": matches.group(3),
"objectIndex": matches.group(4),
"propertyName": matches.group(5), // required
"propertyIndex": matches.group(6)
};
String? nodeName = results["nodeName"];
int? lastDot;
if (nodeName != null) {
lastDot = nodeName.lastIndexOf('.');
}
if (lastDot != null && lastDot != -1) {
var objectName = results["nodeName"]!.substring(lastDot + 1);
// Object names must be checked against an allowlist. Otherwise, there
// is no way to parse 'foo.bar.baz': 'baz' must be a property, but
// 'bar' could be the objectName, or part of a nodeName (which can
// include '.' characters).
if (_supportedObjectNames.contains(objectName)) {
results["nodeName"] = results["nodeName"]!.substring(0, lastDot);
results["objectName"] = objectName;
}
}
if (results["propertyName"] == null || results["propertyName"]!.isEmpty) {
throw ('PropertyBinding: can not parse propertyName from trackName: $trackName');
}
return results;
}