private void SetupDirectives()
{
Directive d = Directives.Find("TinyPG");
if (d == null)
{
d = new Directive("TinyPG");
Directives.Insert(0, d);
}
if (!d.ContainsKey("Namespace"))
{
d["Namespace"] = "TinyPG"; // set default namespace
}
if (!d.ContainsKey("OutputPath"))
{
d["OutputPath"] = "./"; // write files to current path
}
if (!d.ContainsKey("Language"))
{
d["Language"] = "C#"; // set default language
}
if (!d.ContainsKey("TemplatePath"))
{
switch (d["Language"].ToLower(CultureInfo.InvariantCulture))
{
// set the default templates directory
case "visualbasic":
case "vbnet":
case "vb.net":
case "vb":
d["TemplatePath"] = AppDomain.CurrentDomain.BaseDirectory + @"Templates\VB\";
break;
default:
d["TemplatePath"] = AppDomain.CurrentDomain.BaseDirectory + @"Templates\C#\";
break;
}
}
d = Directives.Find("Parser");
if (d == null)
{
d = new Directive("Parser");
Directives.Insert(1, d);
}
if (!d.ContainsKey("Generate"))
{
d["Generate"] = "True"; // generate parser by default
}
d = Directives.Find("Scanner");
if (d == null)
{
d = new Directive("Scanner");
Directives.Insert(1, d);
}
if (!d.ContainsKey("Generate"))
{
d["Generate"] = "True"; // generate scanner by default
}
d = Directives.Find("ParseTree");
if (d == null)
{
d = new Directive("ParseTree");
Directives.Add(d);
}
if (!d.ContainsKey("Generate"))
{
d["Generate"] = "True"; // generate parsetree by default
}
d = Directives.Find("TextHighlighter");
if (d == null)
{
d = new Directive("TextHighlighter");
Directives.Add(d);
}
if (!d.ContainsKey("Generate"))
{
d["Generate"] = "False"; // do NOT generate a text highlighter by default
}
}
protected override object EvalNameValue(ParseTree tree, params object[] paramlist)
{
Grammar grammer = (Grammar)paramlist[0];
Directive directive = (Directive)paramlist[1];
GrammarNode node = (GrammarNode)paramlist[2];
string key = node.Nodes[0].Token.Text;
string value = node.Nodes[2].Token.Text.Substring(1, node.Nodes[2].Token.Text.Length - 2);
if (value.StartsWith("\""))
{
value = value.Substring(1);
}
directive[key] = value;
List <string> names = new List <string>(new string[] { "Namespace", "OutputPath", "TemplatePath", });
List <string> languages = new List <string>(new string[] { "c#", "cs", "csharp", "vb", "vb.net", "vbnet", "visualbasic" });
switch (directive.Name)
{
case "TinyPG":
names.Add("Namespace");
names.Add("OutputPath");
names.Add("TemplatePath");
names.Add("Language");
if (key == "TemplatePath")
{
if (grammer.GetTemplatePath() == null)
{
tree.Errors.Add(new ParseError("Template path '" + value + "' does not exist", 0x1060, node.Nodes[2]));
}
}
if (key == "OutputPath")
{
if (grammer.GetOutputPath() == null)
{
tree.Errors.Add(new ParseError("Output path '" + value + "' does not exist", 0x1061, node.Nodes[2]));
}
}
if (key == "Language")
{
if (!languages.Contains(value.ToLower(CultureInfo.InvariantCulture)))
{
tree.Errors.Add(new ParseError("Language '" + value + "' is not supported", 0x1062, node.Nodes[2]));
}
}
break;
case "Parser":
case "Scanner":
case "ParseTree":
case "TextHighlighter":
names.Add("Generate");
names.Add("FileName");
break;
default:
return(null);
}
if (!names.Contains(key))
{
tree.Errors.Add(new ParseError("Directive attribute '" + key + "' is not supported", 0x1034, node.Nodes[0]));
}
return(null);
}