diff options
Diffstat (limited to 'mcs/class/corlib/System.IO/StreamReader.cs')
| -rw-r--r-- | mcs/class/corlib/System.IO/StreamReader.cs | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/mcs/class/corlib/System.IO/StreamReader.cs b/mcs/class/corlib/System.IO/StreamReader.cs deleted file mode 100644 index 80c6fc9b83d..00000000000 --- a/mcs/class/corlib/System.IO/StreamReader.cs +++ /dev/null @@ -1,267 +0,0 @@ -//
-// System.IO.StreamReader.cs
-//
-// Author:
-// Dietmar Maurer (dietmar@ximian.com)
-//
-// (C) Ximian, Inc. http://www.ximian.com
-//
-
-using System;
-using System.Text;
-
-namespace System.IO {
- [Serializable]
- public class StreamReader : TextReader {
-
- private const int DefaultBufferSize = 1024;
- private const int DefaultFileBufferSize = 4096;
- private const int MinimumBufferSize = 128;
-
- // buffering members
- private byte [] rgbEncoded;
-// private int cbEncoded;
- private char [] rgchDecoded;
- private int cchDecoded;
-
- private int pos;
-
-
- private Encoding internalEncoding;
- private Decoder decoder;
-
- private Stream internalStream;
-
- [MonoTODO("Make Read methods return 0, etc.")]
- private class NullStreamReader : StreamReader {
- }
-
- public new static readonly StreamReader Null = (StreamReader)(new NullStreamReader());
-
- internal StreamReader() {}
-
- public StreamReader(Stream stream)
- : this (stream, null, false, DefaultBufferSize) { }
-
- public StreamReader(Stream stream, bool detectEncodingFromByteOrderMarks)
- : this (stream, null, detectEncodingFromByteOrderMarks, DefaultBufferSize) { }
-
- public StreamReader(Stream stream, Encoding encoding)
- : this (stream, encoding, false, DefaultBufferSize) { }
-
- public StreamReader(Stream stream, Encoding encoding, bool detectEncodingFromByteOrderMarks)
- : this (stream, encoding, detectEncodingFromByteOrderMarks, DefaultBufferSize) { }
-
- public StreamReader(Stream stream, Encoding encoding, bool detectEncodingFromByteOrderMarks, int bufferSize)
- {
- Initialize (stream, encoding, detectEncodingFromByteOrderMarks, bufferSize);
- }
-
- public StreamReader(string path)
- : this (path, null, false, DefaultFileBufferSize) { }
-
- public StreamReader(string path, bool detectEncodingFromByteOrderMarks)
- : this (path, null, detectEncodingFromByteOrderMarks, DefaultFileBufferSize) { }
-
- public StreamReader(string path, Encoding encoding)
- : this (path, encoding, false, DefaultFileBufferSize) { }
-
- public StreamReader(string path, Encoding encoding, bool detectEncodingFromByteOrderMarks)
- : this (path, encoding, detectEncodingFromByteOrderMarks, DefaultFileBufferSize) { }
-
- [MonoTODO]
- public StreamReader(string path, Encoding encoding, bool detectEncodingFromByteOrderMarks, int bufferSize)
- {
- if (null == path)
- throw new ArgumentNullException();
- if (String.Empty == path)
- throw new ArgumentException();
- if (path.IndexOfAny (Path.InvalidPathChars) != -1)
- throw new ArgumentException("path contains invalid characters");
-
- string DirName = Path.GetDirectoryName(path);
- if (DirName != String.Empty && !Directory.Exists(DirName))
- throw new DirectoryNotFoundException();
- if (!File.Exists(path))
- throw new FileNotFoundException(path);
-
- Stream stream = (Stream) File.OpenRead (path);
- Initialize (stream, encoding, detectEncodingFromByteOrderMarks, bufferSize);
- }
-
- [MonoTODO]
- protected void Initialize (Stream stream, Encoding encoding, bool detectEncodingFromByteOrderMarks, int bufferSize)
- {
- if (null == stream)
- throw new ArgumentNullException();
- if (!stream.CanRead)
- throw new ArgumentException("Cannot read stream");
-
- internalStream = stream;
-
- // use detect encoding flag
- if (encoding == null) {
- internalEncoding = Encoding.UTF8;
- decoder = Encoding.UTF8.GetDecoder ();
- } else {
- internalEncoding = encoding;
- decoder = encoding.GetDecoder ();
- }
-
- if (bufferSize < MinimumBufferSize)
- bufferSize = MinimumBufferSize;
-
- rgbEncoded = new byte [bufferSize];
- rgchDecoded = new char [internalEncoding.GetMaxCharCount (bufferSize)];
- pos = 0;
- cchDecoded = 0;
- }
-
- public virtual Stream BaseStream
- {
- get {
- return internalStream;
- }
- }
-
- public virtual Encoding CurrentEncoding
- {
- get {
- return internalEncoding;
- }
- }
-
- public override void Close ()
- {
- Dispose (true);
- }
-
- public void DiscardBufferedData ()
- {
- pos = 0;
- cchDecoded = 0;
-
-/* I'm sure there's no need to do all this
- if ((cchDecoded == null) || (pos == cchDecoded.Length))
- return;
-
- if (!internalStream.CanSeek)
- return;
-
- int seek_back = pos - cchDecoded.Length;
- internalStream.Seek (seek_back, SeekOrigin.Current);
-*/
- }
-
-
- // the buffer is empty, fill it again
- [MonoTODO ("handle byte order marks here")]
- private int ReadBuffer ()
- {
- pos = 0;
- int cbEncoded = 0;
- cchDecoded = 0;
- do // keep looping until the decoder gives us some chars
- {
- cbEncoded = internalStream.Read (rgbEncoded, 0, rgbEncoded.Length);
- // TODO: remove this line when iconv is fixed
- int bufcnt = decoder.GetCharCount (rgbEncoded, 0, cbEncoded);
-
- if (cbEncoded == 0)
- return 0;
- // TODO: remove byte order marks here
- cchDecoded += decoder.GetChars (rgbEncoded, 0, cbEncoded, rgchDecoded, 0);
- } while (cchDecoded == 0);
-
- return cchDecoded;
- }
-
- public override int Peek ()
- {
- if (!internalStream.CanSeek)
- return -1;
-
- if (pos >= cchDecoded && ReadBuffer () == 0)
- return -1;
-
- return rgchDecoded [pos];
- }
-
- public override int Read ()
- {
- if (pos >= cchDecoded && ReadBuffer () == 0)
- return -1;
-
- return rgchDecoded [pos++];
- }
-
- public override int Read (char[] dest_buffer, int index, int count)
- {
- if (dest_buffer == null)
- throw new ArgumentException ();
-
- if ((index < 0) || (count < 0))
- throw new ArgumentOutOfRangeException ();
-
- if (index + count > dest_buffer.Length)
- throw new ArgumentException ();
-
- int cchRead = 0;
- while (count > 0)
- {
- if (pos >= cchDecoded && ReadBuffer () == 0)
- return cchRead > 0? cchRead: -1;
-
- int cch = Math.Min (cchDecoded - pos, count);
- Array.Copy (rgchDecoded, pos, dest_buffer, index, cch);
- pos += cch;
- index += cch;
- count -= cch;
- cchRead += cch;
- }
- return cchRead;
- }
-
- public override string ReadLine()
- {
- StringBuilder text = new StringBuilder ();
-
- while (true) {
- int c = Read ();
-
- if (c == -1) { // end of stream
- if (text.Length == 0)
- return null;
-
- break;
- }
-
- if (c == '\n') // newline
- break;
-
- if (c == '\r' && Peek () == '\n') { // cr, newline
- Read ();
- break;
- }
-
- text.Append ((char) c);
- }
-
- return text.ToString ();
- }
-
- public override string ReadToEnd()
- {
- StringBuilder text = new StringBuilder ();
-
- int c;
- while ((c = Read ()) != -1) {
- text.Append ((char) c);
- }
-
- if (text.Length == 0)
- return String.Empty;
- return text.ToString ();
- }
- }
-}
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