commonparses method
You don't have to merge like this
return { ...currentCommon, your Def: bla bla bla}
just give your own lib common parse rules
=> { your Def: bla bla bla }
currentCommon is for you to check what have been loaded if Needed.
Implementation
@override
Map<String, List<JParse>> commonparses(
Map<String, List<JParse>>? currentCommon) =>
{StErrNotLegalPath: [], StErrExecSymbolAbsent: [], StErrNotCommand: []};