StringHead - string I/O class (can read and write, dev.) [1035757]

< > BotCompany Repo | #1035757 // StringHead - string I/O class (can read and write, dev.)

JavaX fragment (include) [tags: use-pretranspiled]

sclass StringHead is Closeable {
  settable bool readMode;
  settable bool writeMode;
  gettable BufferedReader reader;
  gettable Writer writer;

  *() {}
  *(Reader reader) { reader(reader); }
  *(Writer writer) { writer(writer); }
  
  selfType reader(Reader reader) {
    this.reader = bufferedReader(reader);
    readMode(true);
    this;
  }
  
  selfType writer(Writer writer) { this.writer = writer; writeMode(true); this; }
  
  void finish {}
  
  S readLine() {
    S line = readLineFromReader(reader);
    if (line == null) close();
    ret line;
  }
  
  void writeLine(S line) ctex {
    writer.write(line);
    writer.write('\n');
  }
  
  void exchangeLine(IF0<S> getter, IVF1<S> setter) {
    if (writeMode())
      writeLine(getter!);
    
    if (readMode())
      setter.get(readLine());
  }
  
  close {
    dispose reader;
    dispose writer;
  }
  
  replace ByteIO with StringIO.
  
  void exchange(ByteIO writable) {
    if (writable != null) writable.readWrite(this);
  }
  
  void exchangeAll(Iterable<? extends ByteIO> writables) {  
    if (writables != null)
      for (writable : writables)
        exchange(writable);
  }
}

Author comment

Began life as a copy of #1035632

Travelled to 2 computer(s): elmgxqgtpvxh, mqqgnosmbjvj

Snippet ID:

#1035757

Snippet name:

StringHead - string I/O class (can read and write, dev.)

Eternal ID of this version:

#1035757/10

Text MD5:

aad93ae69b47ac08c224c984ef5ea29e

Transpilation MD5:

bff6141b86abcfd7d4b92de0f0070c44

Author:

stefan

Category:

javax / io

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2022-07-22 04:21:55

Source code size:

1210 bytes / 56 lines

Pitched / IR pitched:

No / No

Views / Downloads:

598 / 735

Version history:

9 change(s)

Referenced in:

[show references]

1	sclass StringHead is Closeable {
2	settable bool readMode;
3	settable bool writeMode;
4	gettable BufferedReader reader;
5	gettable Writer writer;
6
7	*() {}
8	*(Reader reader) { reader(reader); }
9	*(Writer writer) { writer(writer); }
10
11	selfType reader(Reader reader) {
12	this.reader = bufferedReader(reader);
13	readMode(true);
14	this;
15	}
16
17	selfType writer(Writer writer) { this.writer = writer; writeMode(true); this; }
18
19	void finish {}
20
21	S readLine() {
22	S line = readLineFromReader(reader);
23	if (line == null) close();
24	ret line;
25	}
26
27	void writeLine(S line) ctex {
28	writer.write(line);
29	writer.write('\n');
30	}
31
32	void exchangeLine(IF0<S> getter, IVF1<S> setter) {
33	if (writeMode())
34	writeLine(getter!);
35
36	if (readMode())
37	setter.get(readLine());
38	}
39
40	close {
41	dispose reader;
42	dispose writer;
43	}
44
45	replace ByteIO with StringIO.
46
47	void exchange(ByteIO writable) {
48	if (writable != null) writable.readWrite(this);
49	}
50
51	void exchangeAll(Iterable<? extends ByteIO> writables) {
52	if (writables != null)
53	for (writable : writables)
54	exchange(writable);
55	}
56	}