public override IMaybe <(Verb, int)> Parse(string source, int index)
{
if (freeParser.Scan(source, index, "^ |sp| 'case' /b"))
{
freeParser.ColorAll(KeyWords);
if (GetComparisand(source, freeParser.Position, PassAlong("^ |sp| ':'"))
.If(out var comparisand, out var condition, out var cmpIndex) &&
GetExpression(source, cmpIndex, CommaOrCloseParenthesis()).If(out var resultBlock, out var blkIndex))
{
Verb verb = new CaseExecute(comparisand, resultBlock, false, condition);
return((verb, blkIndex).Some());
}
}
return(none <(Verb, int)>());
}
public override IMaybe <(Verb, int)> Parse(string source, int index)
{
if (freeParser.Scan(source, index, "^ |tabs| 'case' /b"))
{
freeParser.ColorAll(KeyWords);
var pComparisand = GetComparisand(source, freeParser.Position, PassAlong(REGEX_DO_OR_END, false));
if (pComparisand.If(out var comparisand, out var condition, out var cmpIndex) &&
GetOneOrMultipleBlock(source, cmpIndex).If(out var resultBlock, out var blkIndex))
{
Verb verb = new CaseExecute(comparisand, resultBlock, false, condition);
return((verb, blkIndex).Some());
}
}
return(none <(Verb, int)>());
}