void ifStatmentCompiler(Block block, Dictionary<string, Variable> locals, int level)
{
var command = Regex.Match(lines[block.Start - 1].Trim(), @"^if[ ]*\((?<command>[ ]*.*[ ]*)\)[ ]*:").Groups["command"].Value.Trim();
int ifEndNumber = ifCounter++;
int ifStartNumber = ifCounter++;
smallLogicCompiler(command, locals, false, ifStartNumber, ifEndNumber);
assemblyText.Add("if" + ifStartNumber + ":");
blockCompilator(block, locals, level, 0);
assemblyText.Add("if" + ifEndNumber + ":");
}
void inlineAssembler(Block block, Dictionary<string, Variable> locals, int argsCount)
{
currentLine = block.Start;
for (; currentLine <= block.End; currentLine++)
{
String line = lines[currentLine].Trim();
Match match = Regex.Match(line, @"\^" + variableNameRegex);
if (match.Success)
{
Variable var = locals[match.Groups["name"].Value];
line = Regex.Replace(line, @"\^" + variableNameRegex, buildStackVariable(locals, var.Name, argsCount));
line += " #" + var.Name;
}
assemblyText.Add(line);
}
}
void blockCompilator(Block block, Dictionary<string, Variable> locals, int level, int argsCount)
{
List<Variable> localLocals = new List<Variable>();
currentLine = block.Start;
for (; currentLine <= block.End; )
{
if (Regex.IsMatch(lines[currentLine].Trim(), @"^[\s]*#"))
{
currentLine++;
continue;
}
Variable var = variableDeclarator(lines[currentLine].Trim());
if (var != null)
{
var.StackPosition = locals.Count;
localLocals.Add(var);
locals.Add(var.Name, var);
assemblyText.Add("sub $4,%esp #" + var.Name);
currentLine++;
continue;
}
if (Regex.IsMatch(lines[currentLine].Trim(), @"^asm:[\s]*$"))
{
Block newBlock = findBlock(level + 1, currentLine + 1);
inlineAssembler(newBlock, locals, argsCount);
continue;
}
if (isVariableOperiation(lines[currentLine]))
{
variableOperation(lines[currentLine], locals, argsCount);
currentLine++;
continue;
}
if (isFunctionCalling(lines[currentLine].Trim()))
{
functionCalling(lines[currentLine].Trim(), locals, argsCount);
currentLine++;
continue;
}
if (isIfStatment(lines[currentLine]))
{
Block newBlock = findBlock(level + 1, currentLine + 1);
ifStatmentCompiler(newBlock, locals, level + 1);
}
if (Regex.IsMatch(lines[currentLine].Trim(), @"^ret[ ]+"))
{
variableExtractor(lines[currentLine].Trim().Substring(3), locals);
assemblyText.Add("mov %ebx,%eax");
assemblyText.Add("add $" + localLocals.Count * 4 + ",%esp");
assemblyText.Add("mov %ebp,%esp");
assemblyText.Add("pop %ebx");
assemblyText.Add("pop %ebp");
assemblyText.Add("ret");
currentLine++;
}
currentLine++;
}
assemblyText.Add("add $" + localLocals.Count * 4 + ",%esp");
foreach (var local in localLocals)
{
locals.Remove(local.Name);
}
}