/// <summary>
/// Constructs a new instance of the preprocessor class.
/// </summary>
/// <param name="opt">The <see cref="ProcessorOptions"/>.</param>
public Preprocessor(ProcessorOptions opt)
{
_includedFiles = new HashSet <string>();
_index = 0;
_options = opt;
_macros = new Dictionary <string, Macro>(_options.CaseSensitive ? StringComparer.Ordinal : StringComparer.OrdinalIgnoreCase);
_preprocessors = new ReservedWords(_options.CaseSensitive ? StringViewComparer.Ordinal : StringViewComparer.IgnoreCase);
_preprocessors.DefineType("Macros",
".macro", ".endmacro");
_preprocessors.DefineType("Includes",
".binclude", ".include");
_preprocessors.DefineType("End",
".end");
}
/// <summary>
/// Constructs a new instance of an <see cref="AssemblyController"/>, which controls
/// the assembly process.
/// </summary>
/// <param name="args">The commandline arguments.</param>
/// <param name="cpuSetHandler">The <see cref="CpuAssembler"/> selection handler.</param>
/// <param name="formatSelector">The format selector.</param>
/// <exception cref="ArgumentNullException"></exception>
public AssemblyController(IEnumerable <string> args,
Func <string, AssemblyServices, CpuAssembler> cpuSetHandler,
Func <string, string, IBinaryFormatProvider> formatSelector)
{
if (args == null || cpuSetHandler == null || formatSelector == null)
{
throw new ArgumentNullException();
}
_services = new AssemblyServices(Options.FromArgs(args));
_services.PassChanged += (s, a) => _services.Output.Reset();
_services.PassChanged += (s, a) => _services.SymbolManager.Reset();
_services.FormatSelector = formatSelector;
_processorOptions = new ProcessorOptions
{
CaseSensitive = _services.Options.CaseSensitive,
Log = _services.Log,
IncludePath = _services.Options.IncludePath,
IgnoreCommentColons = _services.Options.IgnoreColons,
WarnOnLabelLeft = _services.Options.WarnLeft,
InstructionLookup = symbol => _services.InstructionLookupRules.Any(ilr => ilr(symbol))
};
CpuAssembler cpuAssembler = null;
var cpu = _services.Options.CPU;
if (!string.IsNullOrEmpty(cpu))
{
cpuAssembler = cpuSetHandler(cpu, _services);
}
if (_services.Options.InputFiles.Count > 0)
{
var src = new Preprocessor(_processorOptions).ProcessToFirstDirective(_services.Options.InputFiles[0]);
if (src != null && src.Instruction != null && src.Instruction.Name.Equals(".cpu", _services.StringViewComparer))
{
if (src.Operands.Count != 1 || !src.Operands[0].IsDoubleQuote())
{
_services.Log.LogEntry(src.Filename, src.LineNumber, src.Instruction.Position,
"Invalid expression for directive \".cpu\".");
}
else
{
cpu = src.Operands[0].Name.ToString().TrimOnce('"');
}
}
}
_services.CPU = cpu;
if (!string.IsNullOrEmpty(cpu) && cpuAssembler != null && !cpuAssembler.IsCpuValid(cpu))
{
_services.Log.LogEntrySimple($"Invalid CPU \"{cpu}\" specified.");
}
else
{
if (cpuAssembler == null)
{
cpuAssembler = cpuSetHandler(cpu, _services);
}
_assemblers = new List <AssemblerBase>
{
new AssignmentAssembler(_services),
new BlockAssembler(_services),
new EncodingAssembler(_services),
new PseudoAssembler(_services),
new MiscAssembler(_services),
cpuAssembler
};
_processorOptions.IsMacroNameValid = symbol => !_assemblers.Any(asm => asm.Assembles(symbol));
_processorOptions.LineTerminates = _services.LineTerminates;
}
}