public void ParsingSteps(
Syntan.SyntacticAnalysis.ExtendedGrammar grammar,
Syntan.SyntacticAnalysis.LR.ParserTable table,
IEnumerable<Syntan.SyntacticAnalysis.TerminalSymbol> input,
IEnumerable<Fixtures.ParsingStepData> expected_parsing_steps)
{
var p = new Parser();
p.Start(grammar, table, input);
foreach( var step in expected_parsing_steps )
{
Assert.Equal(step.Phase, p.Phase);
Assert.Equal(step.IsParsing, p.IsParsing);
Assert.Equal(step.IsFinished, p.IsFinished);
Assert.Equal(step.StepCount, p.StepCount);
Assert.Equal(step.CurrentState, p.CurrentState);
Assert.Equal(step.CurrentInputSymbol, p.CurrentInputSymbol);
Assert.Equal(step.ActionArgument, p.ActionArgument);
if( step.AreReductionPropertiesSet )
{
Assert.Equal(step.GotoState, p.GotoState);
Assert.Equal(step.GotoSymbol, p.GotoSymbol);
Assert.Equal(step.ReductionRule, p.ReductionRule);
}
p.StepPhase();
}
}
public void ShowRule( int rule_index, Syntan.SyntacticAnalysis.Rule rule )
{
this.RuleIndex_Label.Text = "(" + rule_index.ToString() + ")";
this.RuleLhs_Label.Text = rule.LeftHandSide.Name;
this.RuleLhs_Label.BackColor = this.BackColor;
this.RuleRhs_Label.Text = rule.RightHandSide.Count == 0 ? "ε" :
string.Join(string.Empty, rule.RightHandSide.Select(s => s.Name));
this.RuleRhs_Label.BackColor = this.BackColor;
this.Rule_TableLayout.Visible = true;
}
