private Regex /*!*/ TransformPattern(RubyEncoding encoding, RubyRegexOptions kc)
{
// We can reuse cached CLR regex if it was created for the same k-coding:
if (_cachedRegex != null && kc == _cachedKCode)
{
return(_cachedRegex);
}
string pattern;
if (kc != 0 || encoding == RubyEncoding.Binary)
{
pattern = _pattern.ToString(encoding.Encoding);
}
else
{
pattern = _pattern.ConvertToString();
}
Regex result;
try {
result = new Regex(RegexpTransformer.Transform(pattern, _options, out _hasGAnchor), ToClrOptions(_options));
} catch (Exception e) {
throw new RegexpError(e.Message);
}
_cachedKCode = kc;
_cachedRegex = result;
return(result);
}
internal static Process /*!*/ CreateProcess(RubyContext /*!*/ context, MutableString /*!*/ command,
bool redirectInput, bool redirectOutput, bool redirectErrorOutput)
{
string fileName, arguments;
RubyProcess.GetExecutable(context.DomainManager.Platform, command.ToString(), out fileName, out arguments);
Utils.Log(String.Format("Starting: '{0}' with args: '{1}'", fileName, arguments), "PROCESS");
var p = new Process();
p.StartInfo.FileName = fileName;
p.StartInfo.Arguments = arguments;
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardInput = redirectInput;
p.StartInfo.RedirectStandardOutput = redirectOutput;
p.StartInfo.RedirectStandardError = redirectErrorOutput;
try {
p.Start();
} catch (Exception e) {
throw RubyExceptions.CreateENOENT(fileName, e);
}
context.ChildProcessExitStatus = new RubyProcess.Status(p);
return(p);
}
private Regex /*!*/ Transform(ref RubyEncoding encoding, MutableString /*!*/ input, int start, out string strInput)
{
ContractUtils.RequiresNotNull(input, "input");
// K-coding of the current operation (the current KCODE gets preference over the KCODE regex option):
RubyRegexOptions kc = _options & RubyRegexOptions.EncodingMask;
if (kc != 0)
{
encoding = _pattern.Encoding;
}
else
{
kc = RubyEncoding.ToRegexOption(encoding);
}
// Convert input to a string. Force k-coding if necessary.
if (kc != 0)
{
// Handling multi-byte K-coded characters is not entirely correct here.
// Three cases to be considered:
// 1) Multi-byte character is explicitly contained in the pattern: /�*/
// 2) Subsequent escapes form a complete character: /\342\202\254*/ or /\xe2\x82\xac*/
// 3) Subsequent escapes form an incomplete character: /[\x7f-\xff]{1,3}/
//
// In the first two cases we want to "group" the byte triplet so that regex operators like *, +, ? and {n,m} operate on
// the entire character, not just the last byte. We could unescape the bytes and replace them with complete Unicode characters.
// Then we could encode the input using the same K-coding and we would get a match.
// However, case 3) requires the opposite: to match the bytes we need to encode the input using binary encoding.
// Using this encoding makes *+? operators operate on the last byte (encoded as UTF16 character).
//
// The right solution would require the regex engine to handle multi-byte escaped characters, which it doesn't.
//
// TODO:
// A correct workaround would be to wrap the byte sequence that forms a character into a non-capturing group,
// for example transform /\342\202\254*/ to /(?:\342\202\254)*/ and use binary encoding on both input and pattern.
// For now, we just detect if there are any non-ascii character escapes. If so we use a binary encoding accomodating case 3),
// but breaking cases 1 and 2. Otherwise we encode using k-coding to make case 1 match.
if (HasEscapedNonAsciiBytes(_pattern))
{
encoding = RubyEncoding.Binary;
kc = 0;
}
strInput = ForceEncoding(input, encoding.Encoding, start);
}
else if (input.Encoding.IsKCoding)
{
strInput = input.ToString(BinaryEncoding.Instance);
}
else
{
_pattern.RequireCompatibleEncoding(input);
input.PrepareForCharacterRead();
strInput = input.ConvertToString();
}
return(TransformPattern(encoding, kc));
}
public static int SysOpen(RubyClass /*!*/ self, [NotNull] MutableString path, [Optional] MutableString mode, [Optional] int perm)
{
if (RubyFileOps.DirectoryExists(self.Context, path))
{
// TODO: What file descriptor should be returned for a directory?
return(-1);
}
RubyIO io = new RubyFile(self.Context, path.ToString(), IOModeEnum.Parse(mode));
int fileDesc = io.GetFileDescriptor();
io.Close();
return(fileDesc);
}
// declared private instance methods:
// initialize
// declared protected instance methods:
// declared public instance methods:
private static Exception MakeKeyTypeException(RubyContext /*!*/ context, object key)
{
if (key == null)
{
return(RubyExceptions.CreateTypeError("nil is not a symbol"));
}
else
{
MutableString repr = Protocols.ConvertToString(context, key);
string message = String.Format("{0} is not a symbol", repr.ToString());
return(RubyExceptions.CreateArgumentError(message));
}
}
public static IOInfo Parse(RubyContext /*!*/ context, MutableString /*!*/ modeAndEncoding)
{
if (!modeAndEncoding.IsAscii())
{
throw IOModeEnum.IllegalMode(modeAndEncoding.ToAsciiString());
}
string[] parts = modeAndEncoding.ToString().Split(':');
return(new IOInfo(
IOModeEnum.Parse(parts[0]),
(parts.Length > 1) ? TryParseEncoding(context, parts[1]) : null,
(parts.Length > 2) ? TryParseEncoding(context, parts[2]) : null
));
}
public static int Rename(RubyContext /*!*/ context, RubyClass /*!*/ self,
[DefaultProtocol, NotNull] MutableString /*!*/ oldPath, [DefaultProtocol, NotNull] MutableString /*!*/ newPath)
{
string strOldPath = oldPath.ConvertToString();
if (!FileExists(context, strOldPath) && !DirectoryExists(context, strOldPath))
{
throw new Errno.NoEntryError(String.Format("No such file or directory - {0}", oldPath));
}
// TODO: Change to raise a SystemCallError instead of a native CLR error
File.Move(strOldPath, newPath.ToString());
return(0);
}
public static void RaiseException(Thread /*!*/ self, [NotNull] MutableString /*!*/ message)
{
if (self == Thread.CurrentThread)
{
KernelOps.RaiseException(self, message);
return;
}
#if SILVERLIGHT
throw new NotImplementedError("Thread#raise is not implemented on Silverlight");
#else
Exception e = RubyExceptionData.InitializeException(new RuntimeError(message.ToString()), message);
RaiseAsyncException(self, e);
#endif
}
private static string /*!*/ ForceEncoding(MutableString /*!*/ input, Encoding /*!*/ encoding, int start)
{
int byteCount = input.GetByteCount();
if (start < 0)
{
start += byteCount;
}
if (start < 0)
{
return(null);
}
return((start <= byteCount) ? input.ToString(encoding, start, byteCount - start) : null);
}
public static void RaiseException(Thread /*!*/ self, [NotNull] MutableString /*!*/ message)
{
if (self == Thread.CurrentThread)
{
KernelOps.RaiseException(self, message);
return;
}
#if FEATURE_EXCEPTION_STATE
Exception e = RubyExceptionData.InitializeException(new RuntimeError(message.ToString()), message);
RaiseAsyncException(self, e);
#else
throw new NotImplementedError("Thread#raise not supported on this platform");
#endif
}
internal static Process /*!*/ CreateProcess(RubyContext /*!*/ context, MutableString /*!*/ command, MutableString[] /*!*/ args)
{
var psi = new ProcessStartInfo(command.ToString(), JoinArguments(args).ToString());
psi.UseShellExecute = false;
psi.RedirectStandardError = true;
try {
Utils.Log(String.Format("Starting: '{0}' with args: '{1}'", psi.FileName, psi.Arguments), "PROCESS");
Process p = Process.Start(psi);
p.WaitForExit();
context.ChildProcessExitStatus = new RubyProcess.Status(p);
return(p);
} catch (Exception e) {
throw RubyExceptions.CreateENOENT(psi.FileName, e);
}
}
public static string GetSubstring(RubyScope /*!*/ scope, string /*!*/ self, [NotNull] RubyRegex /*!*/ regex, [DefaultProtocol] int occurrance)
{
if (regex.IsEmpty)
{
return(String.Empty);
}
MatchData match = RegexpOps.Match(scope, regex, MutableString.Create(self, RubyEncoding.UTF8));
if (match == null || !RegexpOps.NormalizeGroupIndex(ref occurrance, match.GroupCount))
{
return(null);
}
MutableString result = match.GetGroupValue(occurrance);
return(result != null?result.ToString() : null);
}
public IOInfo AddEncoding(RubyContext /*!*/ context, MutableString /*!*/ encoding)
{
if (!encoding.IsAscii())
{
context.ReportWarning(String.Format("Unsupported encoding {0} ignored", encoding.ToAsciiString()));
return(this);
}
if (HasEncoding)
{
throw RubyExceptions.CreateArgumentError("encoding specified twice");
}
string[] parts = encoding.ToString().Split(':');
return(new IOInfo(
_mode,
TryParseEncoding(context, parts[0]),
(parts.Length > 1) ? TryParseEncoding(context, parts[1]) : null
));
}
private string ReadSymbol(int typeFlag)
{
string result = null;
if (typeFlag == ';')
{
int position = ReadInt32();
if (!_symbols.TryGetValue(position, out result))
{
throw RubyExceptions.CreateArgumentError("bad symbol");
}
}
else
{
// Ruby appears to assume that it's a ':' in this context
MutableString symbolName = ReadString();
result = symbolName.ToString();
int position = _symbols.Count;
_symbols[position] = result;
}
return(result);
}
public static string /*!*/ Concatenate(string /*!*/ self, [DefaultProtocol, NotNull] MutableString /*!*/ other)
{
return(self + other.ToString());
}
public override string /*!*/ ToString()
{
return(_string.ToString());
}
public static string /*!*/ Create(RubyClass /*!*/ self, [DefaultProtocol] MutableString /*!*/ str)
{
return(str.ToString());
}
public static MutableString /*!*/ FormatTime(DateTime self, [DefaultProtocol, NotNull] MutableString /*!*/ format)
{
bool inEscape = false;
StringBuilder builder = new StringBuilder();
foreach (char c in format.ToString())
{
if (c == '%' && !inEscape)
{
inEscape = true;
continue;
}
if (inEscape)
{
string thisFormat = null;
DateTime firstDay;
int week;
switch (c)
{
case 'a':
thisFormat = "ddd";
break;
case 'A':
thisFormat = "dddd";
break;
case 'b':
thisFormat = "MMM";
break;
case 'B':
thisFormat = "MMMM";
break;
case 'c':
thisFormat = "g";
break;
case 'd':
thisFormat = "dd";
break;
case 'H':
thisFormat = "HH";
break;
case 'I':
thisFormat = "hh";
break;
case 'j':
builder.AppendFormat("{0:000}", self.DayOfYear);
break;
case 'm':
thisFormat = "MM";
break;
case 'M':
thisFormat = "mm";
break;
case 'p':
thisFormat = "tt";
break;
case 'S':
thisFormat = "ss";
break;
case 'U':
firstDay = self.AddDays(1 - self.DayOfYear);
DateTime firstSunday = firstDay.AddDays((7 - (int)firstDay.DayOfWeek) % 7);
week = 1 + (int)Math.Floor((self - firstSunday).Days / 7.0);
builder.AppendFormat("{0:00}", week);
break;
case 'W':
firstDay = self.AddDays(1 - self.DayOfYear);
DateTime firstMonday = firstDay.AddDays((8 - (int)firstDay.DayOfWeek) % 7);
week = 1 + (int)Math.Floor((self - firstMonday).Days / 7.0);
builder.AppendFormat("{0:00}", week);
break;
case 'w':
builder.Append((int)self.DayOfWeek);
break;
case 'x':
thisFormat = "d";
break;
case 'X':
thisFormat = "t";
break;
case 'y':
thisFormat = "yy";
break;
case 'Y':
thisFormat = "yyyy";
break;
case 'Z':
thisFormat = "%K";
break;
default:
builder.Append(c);
break;
}
if (thisFormat != null)
{
builder.Append(self.ToString(thisFormat));
}
inEscape = false;
}
else
{
builder.Append(c);
}
}
return(MutableString.Create(builder.ToString()));
}
public static IOMode Parse(MutableString mode, IOMode defaultMode)
{
return((mode != null) ? IOModeEnum.Parse(mode.ToString()) : defaultMode);
}
public static MutableString /*!*/ Basename(RubyClass /*!*/ self,
[DefaultProtocol, NotNull] MutableString /*!*/ path, [DefaultProtocol, NotNull, Optional] MutableString suffix)
{
if (path.IsEmpty)
{
return(path);
}
string strPath = path.ConvertToString();
string[] parts = strPath.Split(new[] { DirectorySeparatorChar, AltDirectorySeparatorChar }, StringSplitOptions.RemoveEmptyEntries);
if (parts.Length == 0)
{
return(MutableString.CreateMutable(path.Encoding).Append((char)path.GetLastChar()).TaintBy(path));
}
if (Environment.OSVersion.Platform != PlatformID.Unix && Environment.OSVersion.Platform != PlatformID.MacOSX)
{
string first = parts[0];
if (strPath.Length >= 2 && IsDirectorySeparator(strPath[0]) && IsDirectorySeparator(strPath[1]))
{
// UNC: skip 2 parts
if (parts.Length <= 2)
{
return(MutableString.CreateMutable(path.Encoding).Append(DirectorySeparatorChar).TaintBy(path));
}
}
else if (first.Length == 2 && Tokenizer.IsLetter(first[0]) && first[1] == ':')
{
// skip drive letter "X:"
if (parts.Length <= 1)
{
var result = MutableString.CreateMutable(path.Encoding).TaintBy(path);
if (strPath.Length > 2)
{
result.Append(strPath[2]);
}
return(result);
}
}
}
string last = parts[parts.Length - 1];
if (MutableString.IsNullOrEmpty(suffix))
{
return(MutableString.CreateMutable(last, path.Encoding));
}
StringComparison comparison = Environment.OSVersion.Platform == PlatformID.Unix ? StringComparison.Ordinal : StringComparison.OrdinalIgnoreCase;
int matchLength = last.Length;
if (suffix != null)
{
string strSuffix = suffix.ToString();
if (strSuffix.LastCharacter() == '*' && strSuffix.Length > 1)
{
int suffixIdx = last.LastIndexOf(
strSuffix.Substring(0, strSuffix.Length - 1),
comparison
);
if (suffixIdx >= 0 && suffixIdx + strSuffix.Length <= last.Length)
{
matchLength = suffixIdx;
}
}
else if (last.EndsWith(strSuffix, comparison))
{
matchLength = last.Length - strSuffix.Length;
}
}
return(MutableString.CreateMutable(path.Encoding).Append(last, 0, matchLength).TaintBy(path));
}
public static RubyEncoding /*!*/ GetEncoding(RubyClass /*!*/ self, [NotNull] MutableString /*!*/ name)
{
return(RubyEncoding.GetRubyEncoding(name.ToString()));
}
