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/* ****************************************************************************
*
* Copyright (c) Microsoft Corporation.
*
* This source code is subject to terms and conditions of the Apache License, Version 2.0. A
* copy of the license can be found in the License.html file at the root of this distribution. If
* you cannot locate the Apache License, Version 2.0, please send an email to
* dlr@microsoft.com. By using this source code in any fashion, you are agreeing to be bound
* by the terms of the Apache License, Version 2.0.
*
* You must not remove this notice, or any other, from this software.
*
*
* ***************************************************************************/
#if FEATURE_FULL_CONSOLE
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text.RegularExpressions;
using Microsoft.Scripting;
using Microsoft.Scripting.Hosting;
using Microsoft.Scripting.Hosting.Shell;
using Microsoft.Scripting.Runtime;
using Microsoft.Scripting.Utils;
namespace IronPython.Hosting {
public sealed class PythonOptionsParser : OptionsParser<PythonConsoleOptions> {
private List<string> _warningFilters;
public PythonOptionsParser() {
}
/// <exception cref="Exception">On error.</exception>
protected override void ParseArgument(string/*!*/ arg) {
ContractUtils.RequiresNotNull(arg, "arg");
switch (arg) {
case "-B": break; // dont_write_bytecode always true in IronPython
case "-U": break; // unicode always true in IronPython
case "-d": break; // debug output from parser, always False in IronPython
case "-b": // Not shown in help on CPython
LanguageSetup.Options["BytesWarning"] = ScriptingRuntimeHelpers.True;
break;
case "-c":
ConsoleOptions.Command = PeekNextArg();
string[] arguments = PopRemainingArgs();
arguments[0] = arg;
LanguageSetup.Options["Arguments"] = arguments;
break;
case "-?":
ConsoleOptions.PrintUsage = true;
ConsoleOptions.Exit = true;
break;
case "-i":
ConsoleOptions.Introspection = true;
LanguageSetup.Options["Inspect"] = ScriptingRuntimeHelpers.True;
break;
case "-m":
ConsoleOptions.ModuleToRun = PeekNextArg();
LanguageSetup.Options["Arguments"] = PopRemainingArgs();
break;
case "-x":
ConsoleOptions.SkipFirstSourceLine = true;
break;
// TODO: unbuffered stdout?
case "-u": break;
// TODO: create a trace listener?
case "-v":
LanguageSetup.Options["Verbose"] = ScriptingRuntimeHelpers.True;
break;
case "-S":
ConsoleOptions.SkipImportSite = true;
LanguageSetup.Options["NoSite"] = ScriptingRuntimeHelpers.True;
break;
case "-s":
LanguageSetup.Options["NoUserSite"] = ScriptingRuntimeHelpers.True;
break;
case "-E":
ConsoleOptions.IgnoreEnvironmentVariables = true;
LanguageSetup.Options["IgnoreEnvironment"] = ScriptingRuntimeHelpers.True;
break;
case "-t": LanguageSetup.Options["IndentationInconsistencySeverity"] = Severity.Warning; break;
case "-tt": LanguageSetup.Options["IndentationInconsistencySeverity"] = Severity.Error; break;
case "-O":
LanguageSetup.Options["Optimize"] = ScriptingRuntimeHelpers.True;
break;
case "-OO":
LanguageSetup.Options["Optimize"] = ScriptingRuntimeHelpers.True;
LanguageSetup.Options["StripDocStrings"] = ScriptingRuntimeHelpers.True;
break;
case "-Q":
LanguageSetup.Options["DivisionOptions"] = ToDivisionOptions(PopNextArg());
break;
case "-Qold":
case "-Qnew":
case "-Qwarn":
case "-Qwarnall":
LanguageSetup.Options["DivisionOptions"] = ToDivisionOptions(arg.Substring(2));
break;
case "-V":
ConsoleOptions.PrintVersion = true;
ConsoleOptions.Exit = true;
IgnoreRemainingArgs();
break;
case "-W":
if (_warningFilters == null) {
_warningFilters = new List<string>();
}
_warningFilters.Add(PopNextArg());
break;
case "-3":
LanguageSetup.Options["WarnPy3k"] = ScriptingRuntimeHelpers.True;
break;
case "-":
PushArgBack();
LanguageSetup.Options["Arguments"] = PopRemainingArgs();
break;
case "-X:Frames":
LanguageSetup.Options["Frames"] = ScriptingRuntimeHelpers.True;
break;
case "-X:FullFrames":
LanguageSetup.Options["Frames"] = LanguageSetup.Options["FullFrames"] = ScriptingRuntimeHelpers.True;
break;
case "-X:Tracing":
LanguageSetup.Options["Tracing"] = ScriptingRuntimeHelpers.True;
break;
case "-X:GCStress":
int gcStress;
if (!StringUtils.TryParseInt32(PopNextArg(), out gcStress) || (gcStress < 0 || gcStress > GC.MaxGeneration)) {
throw new InvalidOptionException(String.Format("The argument for the {0} option must be between 0 and {1}.", arg, GC.MaxGeneration));
}
LanguageSetup.Options["GCStress"] = gcStress;
break;
case "-X:MaxRecursion":
// we need about 6 frames for starting up, so 10 is a nice round number.
int limit;
if (!StringUtils.TryParseInt32(PopNextArg(), out limit) || limit < 10) {
throw new InvalidOptionException(String.Format("The argument for the {0} option must be an integer >= 10.", arg));
}
LanguageSetup.Options["RecursionLimit"] = limit;
break;
case "-X:EnableProfiler":
LanguageSetup.Options["EnableProfiler"] = ScriptingRuntimeHelpers.True;
break;
case "-X:LightweightScopes":
LanguageSetup.Options["LightweightScopes"] = ScriptingRuntimeHelpers.True;
break;
case "-X:MTA":
ConsoleOptions.IsMta = true;
break;
case "-X:Python30":
LanguageSetup.Options["PythonVersion"] = new Version(3, 0);
break;
case "-X:Debug":
RuntimeSetup.DebugMode = true;
LanguageSetup.Options["Debug"] = ScriptingRuntimeHelpers.True;
break;
case "-X:NoDebug":
string regex = PopNextArg();
try {
LanguageSetup.Options["NoDebug"] = new Regex(regex);
} catch {
throw InvalidOptionValue("-X:NoDebug", regex);
}
break;
case "-X:BasicConsole":
ConsoleOptions.BasicConsole = true;
break;
default:
base.ParseArgument(arg);
if (ConsoleOptions.FileName != null) {
PushArgBack();
LanguageSetup.Options["Arguments"] = PopRemainingArgs();
}
break;
}
}
protected override void AfterParse() {
if (_warningFilters != null) {
LanguageSetup.Options["WarningFilters"] = _warningFilters.ToArray();
}
}
private static PythonDivisionOptions ToDivisionOptions(string/*!*/ value) {
switch (value) {
case "old": return PythonDivisionOptions.Old;
case "new": return PythonDivisionOptions.New;
case "warn": return PythonDivisionOptions.Warn;
case "warnall": return PythonDivisionOptions.WarnAll;
default:
throw InvalidOptionValue("-Q", value);
}
}
public override void GetHelp(out string commandLine, out string[,] options, out string[,] environmentVariables, out string comments) {
string[,] standardOptions;
base.GetHelp(out commandLine, out standardOptions, out environmentVariables, out comments);
#if !IRONPYTHON_WINDOW
commandLine = "Usage: ipy [options] [file.py|- [arguments]]";
#else
commandLine = "Usage: ipyw [options] [file.py|- [arguments]]";
#endif
string[,] pythonOptions = new string[,] {
#if !IRONPYTHON_WINDOW
{ "-v", "Verbose (trace import statements) (also PYTHONVERBOSE=x)" },
#endif
{ "-m module", "run library module as a script"},
{ "-x", "Skip first line of the source" },
{ "-u", "Unbuffered stdout & stderr" },
{ "-O", "generate optimized code" },
{ "-OO", "remove doc strings and apply -O optimizations" },
{ "-E", "Ignore environment variables" },
{ "-Q arg", "Division options: -Qold (default), -Qwarn, -Qwarnall, -Qnew" },
{ "-S", "Don't imply 'import site' on initialization" },
{ "-s", "Don't add user site directory to sys.path" },
{ "-t", "Issue warnings about inconsistent tab usage" },
{ "-tt", "Issue errors for inconsistent tab usage" },
{ "-W arg", "Warning control (arg is action:message:category:module:lineno)" },
{ "-3", "Warn about Python 3.x incompatibilities" },
{ "-X:Frames", "Enable basic sys._getframe support" },
{ "-X:FullFrames", "Enable sys._getframe with access to locals" },
{ "-X:Tracing", "Enable support for tracing all methods even before sys.settrace is called" },
{ "-X:GCStress", "Specifies the GC stress level (the generation to collect each statement)" },
{ "-X:MaxRecursion", "Set the maximum recursion level" },
{ "-X:Debug", "Enable application debugging (preferred over -D)" },
{ "-X:NoDebug <regex>", "Provides a regular expression of files which should not be emitted in debug mode"},
{ "-X:MTA", "Run in multithreaded apartment" },
{ "-X:Python30", "Enable available Python 3.0 features" },
{ "-X:EnableProfiler", "Enables profiling support in the compiler" },
{ "-X:LightweightScopes", "Generate optimized scopes that can be garbage collected" },
{ "-X:BasicConsole", "Use only the basic console features" },
};
// Ensure the combined options come out sorted
string[,] allOptions = ArrayUtils.Concatenate(pythonOptions, standardOptions);
List<string> optName = new List<string>();
List<int> indiciesList = new List<int>();
for (int i = 0; i < allOptions.Length / 2; i++) {
optName.Add(allOptions[i, 0]);
indiciesList.Add(i);
}
int[] indicies = indiciesList.ToArray();
Array.Sort(optName.ToArray(), indicies, StringComparer.InvariantCulture);
options = new string[allOptions.Length / 2, 2];
for (int i = 0; i < indicies.Length; i++) {
options[i, 0] = allOptions[indicies[i], 0];
options[i, 1] = allOptions[indicies[i], 1];
}
Debug.Assert(environmentVariables.GetLength(0) == 0); // No need to append if the default is empty
environmentVariables = new string[,] {
{ "IRONPYTHONPATH", "Path to search for module" },
{ "IRONPYTHONSTARTUP", "Startup module" }
};
}
}
}
#endif
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