PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // StringPStreamBuf.h 00004 // 00005 // Copyright (C) 2004 Pascal Vincent 00006 // 00007 // Redistribution and use in source and binary forms, with or without 00008 // modification, are permitted provided that the following conditions are met: 00009 // 00010 // 1. Redistributions of source code must retain the above copyright 00011 // notice, this list of conditions and the following disclaimer. 00012 // 00013 // 2. Redistributions in binary form must reproduce the above copyright 00014 // notice, this list of conditions and the following disclaimer in the 00015 // documentation and/or other materials provided with the distribution. 00016 // 00017 // 3. The name of the authors may not be used to endorse or promote 00018 // products derived from this software without specific prior written 00019 // permission. 00020 // 00021 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 00022 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00023 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00024 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00025 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00026 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00027 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00028 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00029 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00030 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00031 // 00032 // This file is part of the PLearn library. For more information on the PLearn 00033 // library, go to the PLearn Web site at www.plearn.org 00034 00035 /* ******************************************************* 00036 * $Id: StringPStreamBuf.h 6351 2006-10-25 19:05:45Z chapados $ 00037 ******************************************************* */ 00038 00039 // Authors: Pascal Vincent 00040 00044 #ifndef StringPStreamBuf_INC 00045 #define StringPStreamBuf_INC 00046 00047 #include "PStreamBuf.h" 00048 #include <string> 00049 00050 namespace PLearn { 00051 using namespace std; 00052 00053 class StringPStreamBuf: public PStreamBuf 00054 { 00055 00056 private: 00057 00058 typedef PStreamBuf inherited; 00059 00060 protected: 00061 // ********************* 00062 // * protected options * 00063 // ********************* 00064 00065 string* st; 00066 string::size_type read_index; 00067 bool own_string; // if true st will be destroyed 00068 00069 public: 00070 00071 StringPStreamBuf(string* ptrs, const string& openmode="r", bool own_string_=false, 00072 streamsize inbuf_capacity=1000, streamsize outbuf_capacity=1000, streamsize unget_capacity=100); 00073 00074 StringPStreamBuf(const string* ptrs, const string& openmode="r", bool own_string_=false, 00075 streamsize inbuf_capacity=1000, streamsize unget_capacity=100); 00076 00077 inline const string& getString() const 00078 { PLASSERT(st); return *st; } 00079 00080 inline void clear() 00081 { 00082 flush(); 00083 st->clear(); 00084 } 00085 00086 virtual ~StringPStreamBuf(); 00087 00088 protected: 00089 00090 virtual streamsize read_(char* p, streamsize n); 00091 00093 virtual void write_(const char* p, streamsize n); 00094 00095 }; 00096 00097 } // end of namespace PLearn 00098 00099 #endif 00100 00101 00102 /* 00103 Local Variables: 00104 mode:c++ 00105 c-basic-offset:4 00106 c-file-style:"stroustrup" 00107 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00108 indent-tabs-mode:nil 00109 fill-column:79 00110 End: 00111 */ 00112 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :