public IEnumerable <string> Build(Grammar grammar, GenOptions options)
{
this.report = new GrammarReport <int, object>();
this.grammar = grammar;
this.precedenceTable = new PrecedenceTable <int>(grammar.SymbolsRep);
this.functionsRegistry = new FunctionRegistry();
transformMultiplications();
try
{
createRules();
if (grammar.PostValidate(s => report.AddError(s), s => report.AddWarning(s)))
{
createPrecedences();
}
}
catch (ParseControlException ex)
{
Console.WriteLine(ex.Message);
return(null);
}
catch (Exception ex)
{
Console.WriteLine("Error while building parser: " + ex.Message);
Console.WriteLine(ex.StackTrace);
return(null);
}
Productions <int, object> productions = productionBuilder.GetProductions(grammar.GetSymbolId(Grammar.EOFSymbol),
grammar.GetSymbolId(Grammar.ErrorSymbol), report);
if (report.HasGrammarErrors)
{
Console.WriteLine(String.Join(Environment.NewLine, report.ReportGrammarProblems()));
return(null);
}
else
{
ActionTable <int, object> action_table = ParserFactory.CreateActionTable(productions, precedenceTable, report, lookaheadWidth);
if (action_table == null)
{
if (!options.NoOutput)
{
Console.WriteLine("Grammar has errors, reports were written " + report.WriteReports("report_"));
}
return(null);
}
else
{
if (options.ReportOther)
{
Console.WriteLine("Reports were written " + report.WriteReports("report_"));
}
return(buildNamespaceHeader(grammar)
.Concat(buildClassHeader(grammar.ParserTypeInfo))
.Concat(buildRules(action_table, grammar.TokenTypeInfo,
(id => grammar.TokenTypeInfo.FieldNameOf(grammar.GetSymbolName(id))), grammar.TreeNodeName))
.Concat(buildClassFooter())
.Concat(buildNamespaceFooter())
);
}
}
}
