private void Preprocess(TextReader reader, string file, DefineCollection defCol,
ICollection <string> lines, Stack <bool> ifStack)
{
int stackDepth = ifStack.Count;
string line;
bool include = ifStack.And();
while ((line = reader.ReadLine()) != null)
{
line = line.Trim();
if (line.Length > 0)
{
if (line[0] == '#')
{
string[] splitLine = StringExtensions.Split(line,
parameterSplitCharacters, parameterUniterCharacters);
//string[] splitLine = StringHelper.DivideLine(line);
switch (splitLine[0].ToLower())
{
case define:
if (include)
{
if (splitLine.Length > 1)
{
if (splitLine[1].Equals(defineFile))
{
string path = IOHelpers.FindFile(file, splitLine[2]);
if (!string.IsNullOrEmpty(path))
{
IOHelpers.DefineFile(path, defCol);
}
else
{
messageHandler.AddFileNotFoundError(file, line, splitLine[2]);
}
}
else
{
int indexBeg = splitLine[1].IndexOf('(');
int indexEnd = splitLine[1].IndexOf(')');
if (indexBeg >= 0 && indexEnd >= 0 && indexBeg < indexEnd)
{
string parametersList = splitLine[1].Substring(indexBeg + 1, indexEnd - indexBeg - 1);
string[] parameters = parametersList.Split(',');
string original = splitLine[1].Substring(0, indexBeg);
for (int i = 0; i < parameters.Length; i++)
{
parameters[i] = parameters[i].Trim();
}
defCol.Add(original, splitLine[2], parameters);
}
else if (indexBeg == -1 && indexEnd == -1)
{
if (splitLine.Length > 2)
{
defCol.Add(splitLine[1], splitLine[2]);
}
else
{
defCol.Add(splitLine[1], "");
}
}
else
{
messageHandler.AddError(define + " is improperly defined: " + line);
}
}
}
else
{
messageHandler.AddNotEnoughParametersError(file, line, define, 1);
}
}
break;
case unDefine:
if (include)
{
if (splitLine.Length > 1)
{
defCol.Remove(splitLine[1]);
}
else
{
messageHandler.AddNotEnoughParametersError(file, line, unDefine, 1);
}
}
break;
case includeFile:
if (include)
{
if (splitLine.Length > 1)
{
string path = IOHelpers.FindFile(file, splitLine[1]);
if (!string.IsNullOrEmpty(path))
{
string moreText = File.ReadAllText(path);
moreText = this.RemoveComments(moreText);
lines.Add("{");
using (StringReader newReader = new StringReader(moreText))
{
Preprocess(newReader, path, defCol, lines, ifStack);
//Preprocess(moreText, path, defCol, lines, ifStack);
}
lines.Add("}");
}
else
{
messageHandler.AddFileNotFoundError(file, line, splitLine[1]);
}
}
else
{
messageHandler.AddNotEnoughParametersError(file, line, includeFile, 1);
}
}
break;
case includeBinary:
if (include)
{
if (splitLine.Length > 1)
{
string path = IOHelpers.FindFile(file, splitLine[1]);
if (!string.IsNullOrEmpty(path))
{
byte[] data = File.ReadAllBytes(path);
StringBuilder newLine = new StringBuilder("CODE");
for (int i = 0; i < data.Length; i++)
{
newLine.Append(data[i].ToHexString(" 0x"));
}
lines.Add(newLine.ToString());
}
else
{
messageHandler.AddFileNotFoundError(file, line, splitLine[1]);
}
}
else
{
messageHandler.AddNotEnoughParametersError(file, line, includeBinary, 1);
}
}
break;
case ifDefined:
if (splitLine.Length > 1)
{
ifStack.Push(defCol.ContainsName(splitLine[1]));
include = ifStack.And();
}
else
{
messageHandler.AddNotEnoughParametersError(file, line, ifDefined, 1);
}
break;
case ifNotDefined:
if (splitLine.Length > 1)
{
ifStack.Push(!defCol.ContainsName(splitLine[1]));
include = ifStack.And();
}
else
{
messageHandler.AddNotEnoughParametersError(file, line, ifNotDefined, 1);
}
break;
case ifElse:
bool top = ifStack.Pop();
ifStack.Push(!top);
include = ifStack.And();
break;
case ifEnd:
ifStack.Pop();
include = ifStack.And();
break;
case "#org":
lines.Add(line.Substring(1));
messageHandler.AddWarning("#ORG no longer exists. Use ORG instead.");
break;
default:
messageHandler.AddError(splitLine[0] + " is not usable preprocessor command: " + line);
break;
}
}
else if (include)
{
string[] newLines = line.Split(extraLineSplitters);
for (int i = 0; i < newLines.Length; i++)
{
lines.Add(newLines[i]);
}
}
}
}
if (ifStack.Count != stackDepth)
{
messageHandler.AddWarning("#IFDEF stack unbalanced in file " + file + ".");
}
}