private string Evaluate(string text)
{
PreprocTokenizer preproc = new PreprocTokenizer(text);
for (int index = 0; index < preproc.Count; ++index)
{
string token = preproc[index];
if (Processor.PreProcMacros.ContainsKey(token))
{
PreprocMacro macro = Processor.PreProcMacros[token];
if (macro.HasArguments)
{
// check to see if the arguments are found
Dictionary<string, string> ArgumentValues = new Dictionary<string, string>();
int nNextIndex = ExtractArguments(macro, preproc, index + 2, ArgumentValues);
if (nNextIndex > 0)
{
while (nNextIndex >= index)
{
preproc.RemoveAt(nNextIndex--);
}
// insert definition of macro, replacing the arguments as specified
macro.Expand(preproc, index, ArgumentValues);
}
else
{
Trace.TraceError("Warning: Unable to expand macro.\r\nText = '{0}'.\r\nFile = {1} [Line {2}]", text, Filename, Line);
return text;
}
}
else
{
preproc[index] = macro.Definition;
}
}
}
return preproc.Join();
}
private void StopRecordingMacro()
{
if (IsRecordingPreProcMacro)
{
if (MacroText == "")
{
MacroText = Data.Substring(StartOfMacro, ReadIndex - StartOfMacro);
}
else
{
MacroText = MacroText + Data.Substring(StartOfMacro, ReadIndex - StartOfMacro);
}
if (MacroText.EndsWith("\\"))
{
if (Data[ReadIndex] == '\r')
++ReadIndex;
MacroText = MacroText.Remove(MacroText.Length - 1);
StartOfMacro = ReadIndex + 1;
return;
}
IsRecordingPreProcMacro = false;
// better: tokenize whole line now, feed to classes
Tokens = new PreprocTokenizer(MacroText);
if (IsLineIncluded())
{
if (MacroText.StartsWith("#define"))
{
PreProc_Define();
}
else if (MacroText.StartsWith("#ifndef"))
{
PreProc_Ifndef();
}
else if (MacroText.StartsWith("#ifdef"))
{
PreProc_Ifdef();
}
else if (MacroText.StartsWith("#else"))
{
PreProc_Else();
}
else if (MacroText.StartsWith("#endif"))
{
PreProc_Endif();
}
else if (MacroText.StartsWith("#if"))
{
PreProc_If();
}
else if (MacroText.StartsWith("#elif"))
{
PreProc_ElseIf();
}
else if (MacroText.StartsWith("#undef"))
{
PreProc_ElseIf();
}
else if (MacroText.StartsWith("#include"))
{
PreProc_Include();
}
else if (MacroText.StartsWith("#pragma"))
{
PreProc_Pragma();
}
else if (MacroText.StartsWith("#line"))
{
// do nothing
}
else if (MacroText.StartsWith("#error"))
{
// do nothing
}
else if ((Tokens.Count > 2) && (Tokens[1] == "define"))
{
// do nothing
}
else
{
Trace.TraceError("unknown preproc cmd: <{0}>", MacroText);
}
}
else
{
if (MacroText.StartsWith("#ifndef"))
{
PreProc_Ifndef();
}
else if (MacroText.StartsWith("#ifdef"))
{
PreProc_Ifdef();
}
else if (MacroText.StartsWith("#else"))
{
PreProc_Else();
}
else if (MacroText.StartsWith("#endif"))
{
PreProc_Endif();
}
else if (MacroText.StartsWith("#if"))
{
PreProc_If();
}
else if (MacroText.StartsWith("#elif"))
{
PreProc_ElseIf();
}
else
{
Trace.TraceInformation("Ignore '{0}' in line {1}", MacroText, Line);
}
}
MacroText = "";
}
}
private void PreProc_Pragma()
{
PreprocTokenizer tokens = new PreprocTokenizer(MacroText);
if ((tokens.Count > 1) && (tokens[1] == "once"))
{
Processor.ReadOnceList.Add(Filename);
}
}
