MmlSourceLineSet ProcessVariableLine(MmlLine line)
{
if (in_comment_mode)
return null;
var vs = new MmlVariableSource ();
vs.Lines.Add (line);
result.Variables.Add (vs);
return vs;
}
public void SetCurrentInput(MmlLine line)
{
SetCurrentInput (new MmlUntypedSource (line));
}
MmlSourceLineSet ProcessTrackLine(MmlLine line)
{
if (in_comment_mode)
return null;
result.Lexer.SetCurrentInput (line);
string section = previous_section;
int [] range = previous_range;
if (result.Lexer.IsWhitespace (line.PeekChar ()))
result.Lexer.SkipWhitespaces (true);
else {
if (result.Lexer.IsIdentifier (line.PeekChar (), true)) {
section = result.Lexer.ReadNewIdentifier ();
result.Lexer.SkipWhitespaces (false);
}
if (result.Lexer.IsNumber (line.PeekChar ())) {
range = result.Lexer.ReadRange ().ToArray ();
result.Lexer.SkipWhitespaces (true);
}
}
if (range == null)
throw new MmlException ("Current line indicates no track number, and there was no indicated tracks previously.", line.Location);
previous_section = section;
previous_range = range;
result.Lexer.SkipWhitespaces (false);
var ts = new MmlTrackSource (section, range);
ts.Lines.Add (line);
result.Tracks.Add (ts);
return ts;
}
MmlSourceLineSet ProcessPragmaLine(MmlLine line)
{
result.Lexer.SetCurrentInput (line);
line.Location.LinePosition++;
// get identifier
var identifier = result.Lexer.ReadNewIdentifier ();
switch (identifier) {
case "include":
result.Lexer.SkipWhitespaces (true);
return ProcessIncludeLine (line);
case "variable":
result.Lexer.SkipWhitespaces (true);
return ProcessVariableLine (line);
case "macro":
result.Lexer.SkipWhitespaces (true);
return ProcessMacroLine (line);
case "comment":
in_comment_mode = true;
return null;
case "endcomment":
in_comment_mode = false;
return null;
case "define":
case "conditional":
case "meta":
case "basecount":
break;
default:
throw MmlError (line.Location, String.Format ("Unexpected preprocessor directive: {0}", identifier));
}
result.Lexer.SkipWhitespaces (true);
var ps = new MmlPragmaSource (identifier);
ps.Lines.Add (line);
result.Pragmas.Add (ps);
return ps;
}
MmlSourceLineSet ProcessMacroLine(MmlLine line)
{
if (in_comment_mode)
return null;
var mms = new MmlMacroSource ();
mms.Lines.Add (line);
result.Macros.Add (mms);
return mms;
}
MmlSourceLineSet ProcessIncludeLine(MmlLine line)
{
string file = line.Text.Substring (line.Location.LinePosition).Trim ();
compiler.Resolver.PushInclude (file);
this.DoProcess (new MmlInputSource [] {new MmlInputSource (file, compiler.Resolver.Resolve (file))});
compiler.Resolver.PopInclude ();
return new MmlUntypedSource (line);
}
public MmlUntypedSource(MmlLine singleLine)
{
Lines.Add (singleLine);
}