Run CreateInstructionName(AsmInstruction instruction)
{
return(new Run(instruction.Name)
{
Foreground = InstructionNameForeground
});
}
AsmInstruction ParseInstruction(string line)
{
string trimmed = line.Trim();
string[] tokens = trimmed.Split(InstructionSeparator, StringSplitOptions.RemoveEmptyEntries);
// First argument is the instruction name.
// Second argument can be parameters or comment.
// Third argument, if present, is comment.
Debug.Assert(tokens.Length > 0);
Debug.Assert(tokens.Length < 4);
AsmInstruction instruction = new AsmInstruction()
{
Name = tokens[0]
};
if (tokens.Length > 1)
{
if (tokens[1][0] == InstructionCommentStart)
{
// There are no arguments for the instruction.
// The second argument is a comment.
instruction.Comment = tokens[1].Substring(2);
}
else
{
// There still can be a comment on this line.
// Comments are sometimes not separated by tabs, but
// simple space.
if (tokens[1].IndexOf(InstructionCommentStart) != -1)
{
string[] argTokens = tokens[1].Split(InstructionCommentStart);
instruction.Args = ParseInstructionArgs(argTokens[0]);
instruction.Comment = argTokens[1].TrimStart();
}
else
{
instruction.Args = ParseInstructionArgs(tokens[1]);
}
}
if (tokens.Length > 2)
{
// The last token can be only comment.
Debug.Assert(tokens[2][0] == InstructionCommentStart);
instruction.Comment = tokens[2].Substring(2);
}
}
return(instruction);
}
AsmInstructionDecorator CreateInstruction(AsmInstruction instruction)
{
AsmInstructionDecorator decorator = new AsmInstructionDecorator()
{
Instruction = instruction,
Span = new Span(),
Name = CreateInstructionName(instruction),
Args = CreateInstructionArgs(instruction),
Comment = CreateInstructionComment(instruction)
};
int column = m_viewOptions.InstructionPadding;
decorator.Span.Inlines.Add(decorator.Name);
column += instruction.Name.Length;
if (column < m_viewOptions.InstructionArgsPadding)
{
Run padding = CreatePadding(m_viewOptions.InstructionArgsPadding - column);
decorator.Span.Inlines.Add(padding);
column = m_viewOptions.InstructionArgsPadding;
}
if (decorator.Args != null)
{
for (int i = 0; i < decorator.Args.Count; ++i)
{
AsmInstructionArgDecorator arg = decorator.Args[i];
decorator.Span.Inlines.Add(arg.Run);
column += arg.Run.Text.Length;
if ((i + 1) != decorator.Args.Count)
{
decorator.Span.Inlines.Add(new Run(", "));
column += 2;
}
}
}
if (decorator.Comment != null)
{
if (column < m_viewOptions.CommentPadding)
{
Run padding = CreatePadding(m_viewOptions.CommentPadding - column);
decorator.Span.Inlines.Add(padding);
}
decorator.Span.Inlines.Add(decorator.Comment);
}
return(decorator);
}
Run CreateInstructionComment(AsmInstruction instruction)
{
Run comment = null;
if (instruction.Comment != null)
{
comment = new Run("; " + instruction.Comment)
{
Foreground = CommentForeground
};
}
return(comment);
}
AsmInstructionDecorator CreateLabel(AsmInstruction label)
{
AsmInstructionDecorator decorator = new AsmInstructionDecorator()
{
Instruction = label,
Span = new Span(),
Name = new Run(label.Name)
{
Foreground = LabelForeground
}
};
decorator.Span.Inlines.Add(decorator.Name);
return(decorator);
}
List <AsmInstructionArgDecorator> CreateInstructionArgs(AsmInstruction instruction)
{
List <AsmInstructionArgDecorator> args = null;
if (instruction.Args != null)
{
args = new List <AsmInstructionArgDecorator>();
foreach (IAsmInstructionArg arg in instruction.Args)
{
AsmInstructionArgDecorator decoratedArg = new AsmInstructionArgDecorator()
{
Arg = arg,
Run = CreateInstructionArg(arg)
};
args.Add(decoratedArg);
}
}
return(args);
}