1 /*
2  * CustomTextualInputPort.h -
3  *
4  *   Copyright (c) 2009  Higepon(Taro Minowa)  <higepon@users.sourceforge.jp>
5  *
6  *   Redistribution and use in source and binary forms, with or without
7  *   modification, are permitted provided that the following conditions
8  *   are met:
9  *
10  *   1. Redistributions of source code must retain the above copyright
11  *      notice, this list of conditions and the following disclaimer.
12  *
13  *   2. Redistributions in binary form must reproduce the above copyright
14  *      notice, this list of conditions and the following disclaimer in the
15  *      documentation and/or other materials provided with the distribution.
16  *
17  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
23  *   TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24  *   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25  *   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26  *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27  *   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  *
29  *  $Id: CustomTextualInputPort.h 261 2008-07-25 06:16:44Z higepon $
30  */
31 
32 #ifndef SCHEME_CUSTOM_TEXTUAL_INPUT_PORT_
33 #define SCHEME_CUSTOM_TEXTUAL_INPUT_PORT_
34 
35 #include "TextualInputPort.h"
36 
37 namespace scheme {
38 
39 class CustomTextualInputPort : public TextualInputPort
40 {
41 public:
42     CustomTextualInputPort(VM* theVM, const ucs4string& id, Object readProc, Object getPositionProc, Object setPositionProc, Object closeProc);
43     virtual ~CustomTextualInputPort();
44 
45     ucs4char getChar();
46     int getLineNo() const;
47     void unGetChar(ucs4char c);
48     Transcoder* transcoder() const;
49     bool hasPosition() const;
50     bool hasSetPosition() const;
51     Object position() const;
52     bool setPosition(int64_t position);
53 
54     // Port interface
55     ucs4string toString();
56     int close();
57     bool isClosed() const;
58 private:
59     VM* theVM_;
60     const ucs4string id_;
61     const Object readProc_;
62     const Object getPositionProc_;
63     const Object setPositionProc_;
64     const Object closeProc_;
65     ucs4string buffer_;
66     int line_;
67     bool isClosed_;
68 };
69 
70 } // namespace scheme
71 
72 #endif // SCHEME_CUSTOM_TEXTUAL_INPUT_PORT_
73