Last change
on this file since 676 was 676, checked in by イグトランス (egtra), 15 years ago |
#231に関連して、エンコーディング周りを見直し、Encoder/Decoderをストリーム用に特化。
UTF8Encodingをコンパイル可能にし、ビルドに含めるようにした。ただし、実装が不完全なためテストは不可。
(#231)
|
File size:
1.8 KB
|
Rev | Line | |
---|
[473] | 1 | /*
|
---|
| 2 | @file Include/Classes/System/IO/StreamWriter.ab
|
---|
| 3 | @brief StreamWriterの実装。
|
---|
| 4 | */
|
---|
| 5 |
|
---|
[271] | 6 | Namespace System
|
---|
| 7 | Namespace IO
|
---|
[473] | 8 |
|
---|
| 9 | /*
|
---|
[476] | 10 | @brief ストリームへの書き込みを行うTextWriterの派生。
|
---|
[473] | 11 | @date 2008/03/09
|
---|
| 12 | @auther Egtra
|
---|
| 13 | */
|
---|
[105] | 14 | Class StreamWriter
|
---|
[468] | 15 | Inherits TextWriter
|
---|
| 16 | Public
|
---|
| 17 | /*
|
---|
[473] | 18 | @date 2008/03/09
|
---|
[468] | 19 | @auther Egtra
|
---|
| 20 | */
|
---|
| 21 | Sub StreamWriter(path As String)
|
---|
| 22 | init(New FileStream(path, FileMode.Create, FileAccess.Write, FileShare.None))
|
---|
| 23 | End Sub
|
---|
| 24 |
|
---|
| 25 | /*
|
---|
[473] | 26 | @date 2008/03/09
|
---|
[468] | 27 | @auther Egtra
|
---|
| 28 | */
|
---|
| 29 | Sub StreamWriter(stream As Stream)
|
---|
| 30 | init(stream)
|
---|
| 31 | End Sub
|
---|
| 32 |
|
---|
[622] | 33 | /*
|
---|
| 34 | @brief 基になるストリームを取得する
|
---|
| 35 | @date 2008/09/02
|
---|
| 36 | @auther NoWest
|
---|
| 37 | */
|
---|
[627] | 38 | Function BaseStream () As System.IO.Stream
|
---|
[622] | 39 | Return s
|
---|
| 40 | End Function
|
---|
| 41 |
|
---|
[473] | 42 | Override Sub Flush()
|
---|
[676] | 43 | Flush(False)
|
---|
[473] | 44 | End Sub
|
---|
| 45 |
|
---|
[676] | 46 | Sub Flush(last As Boolean)
|
---|
| 47 | #ifdef UNICODE
|
---|
| 48 | encoder.Encode(StrPtr(buf), buf.Length As SIZE_T, s, last)
|
---|
| 49 | buf.Remove(0, buf.Length As SIZE_T)
|
---|
| 50 | #else
|
---|
| 51 | Dim p = StrPtr(buf)
|
---|
| 52 | Dim i = 0 As SIZE_T
|
---|
| 53 | Dim mbLen = 0 As SIZE_T
|
---|
| 54 | While i <= buf.Length
|
---|
| 55 | mbLen = i
|
---|
| 56 | 'ヌル文字で終わっていないので、CharNextは使えない
|
---|
| 57 | If IsDBCSLeadByte(p[i]) Then
|
---|
| 58 | i += 2
|
---|
| 59 | Else
|
---|
| 60 | i += 1
|
---|
| 61 | End If
|
---|
| 62 | Wend
|
---|
| 63 | Dim wcBuf As PCWSTR
|
---|
| 64 | Dim wcLen = GetStr(p, mbLen, wcBuf)
|
---|
| 65 | encoder.Encode(wcBuf, wcLen, s, last)
|
---|
| 66 | buf.Remove(0, mbLen)
|
---|
| 67 | If last Then
|
---|
| 68 | If buf.Length <> 0 Then
|
---|
| 69 | s.WriteByte(Asc("?"))
|
---|
| 70 | buf.Length = 0
|
---|
| 71 | End If
|
---|
| 72 | End If
|
---|
| 73 | #endif
|
---|
| 74 | End Sub
|
---|
| 75 |
|
---|
[468] | 76 | Protected
|
---|
| 77 | Override Sub Dispose(disposing As Boolean)
|
---|
| 78 | If disposing Then
|
---|
[676] | 79 | Flush(True)
|
---|
[468] | 80 | s.Dispose()
|
---|
| 81 | End If
|
---|
| 82 | End Sub
|
---|
| 83 |
|
---|
| 84 | Private
|
---|
| 85 | Sub init(stream As Stream)
|
---|
| 86 | s = stream
|
---|
[653] | 87 | buf = New Text.StringBuilder(4096)
|
---|
| 88 | '暫定。正式版ではUTF-8を標準とする。
|
---|
[676] | 89 | encoder = New Text.Detail.WindowsCodePageEncoder(CP_ACP)
|
---|
[468] | 90 | End Sub
|
---|
| 91 |
|
---|
[653] | 92 | encoder As Text.Encoder
|
---|
[468] | 93 | s As System.IO.Stream
|
---|
[271] | 94 | End Class
|
---|
| 95 |
|
---|
| 96 | End Namespace
|
---|
| 97 | End Namespace
|
---|
Note:
See
TracBrowser
for help on using the repository browser.