public static bool TryScan(CodeReader reader, out Style scanned)
{
scanned = null;
string line = reader.NextLine();
if (!Regex.IsMatch(line, RegEx))
{
return(false);
}
string name = Regex.Match(line, @"(std:|" + RegExHelper.Variable + @"\()").Value;
name = name.Remove(name.Length - 1);
scanned = new Style(name);
line = reader.NextLine();
while (!reader.Done && !reader.EndingKeyword)
{
if (Instruction.TryScan(reader.Copy(), out Instruction instruction))
{
scanned.AddInstruction(instruction);
line = reader.NextLine();
}
else if (StaticFunctionCallCommand.TryScan(line, out StaticFunctionCallCommand command))
{
scanned.AddCommand(command);
line = reader.NextLine();
}
else
{
throw new Exception("Unkwon Command in Line " + reader.CurrentLine + ".");
}
}
return(true);
}
public static bool TryScan(CodeReader reader, Presentation parent, out Slide slide)
{
slide = null;
string line = reader.NextLine();
if (!Regex.IsMatch(line, RegEx))
{
return(false);
}
string name = Regex.Match(line, RegExHelper.String).Value.Trim('@', '\'');
slide = new Slide(name, parent);
line = reader.NextLine();
Step normalStep = null;
while (!reader.Done && !reader.EndingKeyword)
{
if (Step.TryScan(reader.Copy(), slide, out Step step))
{
if (normalStep != null)
{
slide.AddStep(normalStep);
}
normalStep = null;
reader.Skip(step.LineLength - 1);
slide.AddStep(step);
}
else
{
if (normalStep == null)
{
normalStep = new Step("normal", slide);
}
if (Command.TryScan(reader.Copy(), out Command command))
{
reader.Skip(command.Lines - 1);
normalStep.Add(command);
}
else if (StaticFunctionCallCommand.TryScan(line, out StaticFunctionCallCommand functionCallCommand))
{
reader.Skip(functionCallCommand.Lines - 1);
normalStep.Add(functionCallCommand);
}
else
{
throw new ArgumentException("Unknown Command in Line " + reader.CurrentLine + ".");
}
}
line = reader.NextLine();
}
if (normalStep != null)
{
slide.AddStep(normalStep);
}
return(true);
}
public static bool TryScan(CodeReader reader, Slide parent, out Step scanned)
{
scanned = null;
string line = reader.NextLine();
if (!Regex.IsMatch(line, RegEx))
{
return(false);
}
string name = Regex.Match(line, RegExHelper.String).Value.Trim('\'');
scanned = new Step(name, parent);
line = reader.NextLine();
while (!reader.Done && !reader.EndingKeyword && !Regex.IsMatch(line, RegEx))
{
if (String.IsNullOrWhiteSpace(line))
{
line = reader.NextLine();
continue;
}
if (Command.TryScan(reader.Copy(), out Command command))
{
reader.Skip(command.Lines - 1);
scanned.Add(command);
}
else if (StaticFunctionCallCommand.TryScan(line, out StaticFunctionCallCommand functionCallCommand))
{
reader.Skip(functionCallCommand.Lines - 1);
scanned.Add(functionCallCommand);
}
else
{
throw new ArgumentException("Unknwon Command in Line " + reader.TextLine + ".");
}
line = reader.NextLine();
}
return(true);
}