/// <summary>
/// Generates code that matches a rule
/// </summary>
/// <param name="exp"></param>
/// <returns></returns>
private string GenerateRuleMatch(GrammarInfo grammar, string name)
{
var g = grammar.FindProductionGrammar(name);
//return String.Format("Match(parser, new {0}.{1}())", ns, name);
return(String.Format(
"Match(parser, new {0}.{1}())",
g.Namespace,
name));
}
public GrammarInfo FindProductionGrammar(string name)
{
if (allProductions.ContainsKey(name) || inheritedRules.Contains(name))
{
return(this);
}
else if (inheritedGrammar != null)
{
return(inheritedGrammar.FindProductionGrammar(name));
}
else
{
throw new InvalidOperationException();
}
}
/// <summary>
/// Generate a single rule class
/// </summary>
/// <param name="f"></param>
/// <returns></returns>
private string GenerateRuleClass(GrammarInfo grammar, string name)
{
int tabs = 3;
var resstr = "res";
var g = grammar.FindProductionGrammar(name, false);
var exp = g.Rules[name].GetValue(null) as LambdaExpression;
if (exp == null)
{
// **** TODO
throw new ParserGeneratorException(String.Format("Rule '{0}' must be a lambda expression.", name));
}
CodeStringBuilder code = new CodeStringBuilder();
code.AppendLine(tabs, "bool res = true;");
code.AppendLine();
code.Append(GenerateProductionMatch(tabs, grammar, exp.Body, resstr));
code.AppendLine(tabs, "return res;");
// Figure out whether this rule is inherited or not
string inherited;
g = grammar.FindProductionBaseGrammar(name);
if (g == grammar)
{
inherited = String.Format("{0}.Node", typeof(Token).Namespace);
}
else
{
inherited = String.Format("{0}.{1}", g.Attributes.Namespace, name);
//inheritedRules.Add(name);
}
var template = new StringBuilder(Templates.Rule);
template.Replace("[$InheritedType]", inherited);
template.Replace("[$LibNamespace]", typeof(Token).Namespace);
template.Replace("[$Name]", name);
template.Replace("[$Code]", code.ToString());
return(template.ToString());
}
/// <summary>
/// Generates code that matches a rule
/// </summary>
/// <param name="exp"></param>
/// <returns></returns>
private string GenerateRuleMatch(GrammarInfo grammar, string name)
{
var g = grammar.FindProductionGrammar(name);
//return String.Format("Match(parser, new {0}.{1}())", ns, name);
return String.Format(
"Match(parser, new {0}.{1}())",
g.Namespace,
name);
}
/// <summary>
/// Generate a single rule class
/// </summary>
/// <param name="f"></param>
/// <returns></returns>
private string GenerateRuleClass(GrammarInfo grammar, string name)
{
int tabs = 3;
var resstr = "res";
var g = grammar.FindProductionGrammar(name, false);
var exp = g.Rules[name].GetValue(null) as LambdaExpression;
if (exp == null)
{
// **** TODO
throw new ParserGeneratorException(String.Format("Rule '{0}' must be a lambda expression.", name));
}
CodeStringBuilder code = new CodeStringBuilder();
code.AppendLine(tabs, "bool res = true;");
code.AppendLine();
code.Append(GenerateProductionMatch(tabs, grammar, exp.Body, resstr));
code.AppendLine(tabs, "return res;");
// Figure out whether this rule is inherited or not
string inherited;
g = grammar.FindProductionBaseGrammar(name);
if (g == grammar)
{
inherited = String.Format("{0}.Node", typeof(Token).Namespace);
}
else
{
inherited = String.Format("{0}.{1}", g.Attributes.Namespace, name);
//inheritedRules.Add(name);
}
var template = new StringBuilder(Templates.Rule);
template.Replace("[$InheritedType]", inherited);
template.Replace("[$LibNamespace]", typeof(Token).Namespace);
template.Replace("[$Name]", name);
template.Replace("[$Code]", code.ToString());
return template.ToString();
}
