public override bool ExpectIt(ref IWordWalker ww, object currentSingaRule = null)
{
if (currentSingaRule is null)
{
throw new ArgumentNullException();
}
List <string> sigNames = new List <string>();
var andExpector = new CExactWordExpector("&&");
var existingSigNameExpector = new CExistingSigNameExpector();
var spaceSkipper = new CWhiteSpaceSkipper();
do
{
if (!existingSigNameExpector.ExpectIt(ref ww, currentSingaRule))
{
error = existingSigNameExpector.error;
return(false);
}
sigNames.Add(existingSigNameExpector.result);
spaceSkipper.ExpectIt(ref ww);
} while (andExpector.ExpectIt(ref ww) && spaceSkipper.ExpectIt(ref ww));
result = new CAndExpression();
result.Expressions = sigNames.Select(x => new CStateExpression(((SingaRule)currentSingaRule).sigs[x])).ToList <ISingaExpression>();
return(true);
}
public override bool ExpectIt(ref IWordWalker ww, object currentSingaRule = null)
{
if (currentSingaRule is null)
{
throw new ArgumentNullException();
}
result = new COrExpression();
var orExpector = new CExactWordExpector("||");
var andsExpector = new CAndsExpector();
var spaceSkipper = new CWhiteSpaceSkipper();
do
{
if (!andsExpector.ExpectIt(ref ww, currentSingaRule))
{
error = andsExpector.error;
return(false);
}
result.Expressions.Add(andsExpector.result);
spaceSkipper.ExpectIt(ref ww);
} while (orExpector.ExpectIt(ref ww) && spaceSkipper.ExpectIt(ref ww));
spaceSkipper.ExpectIt(ref ww);
var semicolonExpector = new CExactWordExpector(";");
if (!semicolonExpector.ExpectIt(ref ww))
{
error = semicolonExpector.error;
return(false);
}
return(true);
}