added: textstream (an efficient memory stream for creating strings -- it's using MemBuffer) git-svn-id: svn://ttmath.org/publicrep/pikotools/trunk@425 e52654a7-88a9-db11-a3e9-0013d4bc506emaster
parent
64b05fe8d1
commit
d2d30cf640
@ -0,0 +1,45 @@
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/*
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* This file is a part of PikoTools
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* and is distributed under the (new) BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2012, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions are met:
|
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*
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||||
* * Redistributions of source code must retain the above copyright notice,
|
||||
* this list of conditions and the following disclaimer.
|
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*
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||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
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* documentation and/or other materials provided with the distribution.
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||||
*
|
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* * Neither the name Tomasz Sowa nor the names of contributors to this
|
||||
* project may be used to endorse or promote products derived
|
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* from this software without specific prior written permission.
|
||||
*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
||||
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef headerfile_picotools_membuffer_convert_convert
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#define headerfile_picotools_membuffer_convert_convert
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#include "inttostr.h"
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#endif
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@ -0,0 +1,156 @@
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/*
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* This file is a part of PikoTools
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* and is distributed under the (new) BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2012, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions are met:
|
||||
*
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||||
* * Redistributions of source code must retain the above copyright notice,
|
||||
* this list of conditions and the following disclaimer.
|
||||
*
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||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
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* * Neither the name Tomasz Sowa nor the names of contributors to this
|
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* project may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef headerfile_picotools_membuffer_convert_inttostr
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#define headerfile_picotools_membuffer_convert_inttostr
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namespace PT
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{
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// if the buffer is too small it will be terminated at the beginning (empty string)
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// and the function returns false
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template<class CharType>
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bool Toa(unsigned long value, CharType * buffer, size_t buf_len, int base = 10, size_t * len_out = 0)
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{
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size_t i1, i2;
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long rest;
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if( len_out )
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*len_out = 0;
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if( buf_len == 0 )
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return false;
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i1 = i2 = 0;
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if( base < 2 ) base = 2;
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if( base > 16 ) base = 16;
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do
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{
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rest = value % base;
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value = value / base;
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buffer[i2++] = (rest < 10) ? char(rest) + '0' : char(rest) - 10 + 'A';
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}
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while(value != 0 && i2 < buf_len);
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if( i2 >= buf_len )
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{
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buffer[0] = 0; // ops, the buffer was too small
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return false;
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}
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if( len_out )
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*len_out = i2 - i1;
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buffer[i2--] = 0;
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for( ; i1 < i2 ; ++i1, --i2)
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{
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CharType temp = buffer[i1];
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buffer[i1] = buffer[i2];
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buffer[i2] = temp;
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}
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return true;
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}
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// if the buffer is too small it will be terminated at the beginning (empty string)
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// and the function returns false
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template<class CharType>
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bool Toa(long value, CharType * buffer, size_t buf_len, int base = 10, size_t * len_out = 0)
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{
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if( len_out )
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*len_out = 0;
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if( buf_len == 0 )
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return false;
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CharType * buf = buffer;
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bool is_sign = false;
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if( value < 0 )
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{
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buffer[0] = '-';
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buf += 1;
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buf_len -= 1;
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value = -value;
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is_sign = true;
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}
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bool res = Toa(static_cast<unsigned long>(value), buf, buf_len, base, len_out);
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if( res )
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{
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if( len_out && is_sign )
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*len_out += 1;
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}
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else
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{
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buffer[0] = 0;
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// len_out is set to zero by Toa()
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}
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return res;
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}
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}
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#endif
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@ -0,0 +1,437 @@
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/*
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* This file is a part of PikoTools
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* and is distributed under the (new) BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2012, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions are met:
|
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*
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* * Redistributions of source code must retain the above copyright notice,
|
||||
* this list of conditions and the following disclaimer.
|
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*
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* * Redistributions in binary form must reproduce the above copyright
|
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* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
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* * Neither the name Tomasz Sowa nor the names of contributors to this
|
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* project may be used to endorse or promote products derived
|
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* from this software without specific prior written permission.
|
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*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef headerfile_picotools_textstream_textstream
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#define headerfile_picotools_textstream_textstream
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#include <string>
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#include "space/space.h"
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#include "date/date.h"
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#include "convert/convert.h"
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#include "membuffer/membuffer.h"
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// for sprintf
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#include <cstdio>
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namespace PT
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{
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/*
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a special class representing a stream buffer
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similar to std::ostringstream
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StringType can be either std::string or std::wstring
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this class doesn't use UTF-8 in any kind
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*/
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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class TextStreamBase
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{
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public:
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TextStreamBase();
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typedef MemBuffer<char_type, stack_size, heap_block_size> buffer_type;
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typedef typename buffer_type::iterator iterator;
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typedef typename buffer_type::const_iterator const_iterator;
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void clear();
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bool empty() const;
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size_t size() const;
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void reserve(size_t len);
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size_t capacity() const;
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iterator begin();
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iterator end();
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const_iterator begin() const;
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const_iterator end() const;
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void to_string(std::string & str, bool clear_string = true) const;
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void to_string(std::wstring & str, bool clear_string = true) const;
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char_type & operator[](size_t index);
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char_type operator[](size_t index) const;
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TextStreamBase & operator<<(const char * str);
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TextStreamBase & operator<<(const std::string & str);
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TextStreamBase & operator<<(const wchar_t * str);
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TextStreamBase & operator<<(const std::wstring * str);
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TextStreamBase & operator<<(const std::wstring & str);
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TextStreamBase & operator<<(char);
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TextStreamBase & operator<<(wchar_t);
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TextStreamBase & operator<<(int);
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TextStreamBase & operator<<(long);
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TextStreamBase & operator<<(unsigned int);
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TextStreamBase & operator<<(unsigned long);
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TextStreamBase & operator<<(double);
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TextStreamBase & operator<<(const void *);// printing a pointer
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TextStreamBase & operator<<(const PT::Space & space);
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TextStreamBase & operator<<(const PT::Date & date);
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TextStreamBase & write(const char * buf, size_t len);
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TextStreamBase & write(const wchar_t * buf, size_t len);
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protected:
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int radix;
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buffer_type buffer;
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};
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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TextStreamBase<char_type, stack_size, heap_block_size>::TextStreamBase()
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{
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radix = 10;
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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void TextStreamBase<char_type, stack_size, heap_block_size>::clear()
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{
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buffer.clear();
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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bool TextStreamBase<char_type, stack_size, heap_block_size>::empty() const
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{
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return buffer.empty();
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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size_t TextStreamBase<char_type, stack_size, heap_block_size>::size() const
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{
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return buffer.size();
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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void TextStreamBase<char_type, stack_size, heap_block_size>::reserve(size_t len)
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{
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buffer.reserve(len);
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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size_t TextStreamBase<char_type, stack_size, heap_block_size>::capacity() const
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{
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return buffer.capacity();
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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typename TextStreamBase<char_type, stack_size, heap_block_size>::iterator
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TextStreamBase<char_type, stack_size, heap_block_size>::begin()
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{
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return buffer.begin();
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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typename TextStreamBase<char_type, stack_size, heap_block_size>::iterator
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TextStreamBase<char_type, stack_size, heap_block_size>::end()
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{
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return buffer.end();
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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typename TextStreamBase<char_type, stack_size, heap_block_size>::const_iterator
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TextStreamBase<char_type, stack_size, heap_block_size>::begin() const
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{
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return buffer.begin();
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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typename TextStreamBase<char_type, stack_size, heap_block_size>::const_iterator
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TextStreamBase<char_type, stack_size, heap_block_size>::end() const
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{
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return buffer.end();
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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void TextStreamBase<char_type, stack_size, heap_block_size>::to_string(std::string & str, bool clear_string) const
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{
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if( clear_string )
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str.clear();
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if( str.capacity() < str.size() + size() )
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str.reserve(str.size() + size());
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const_iterator i = begin();
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for( ; i != end() ; ++i)
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str += static_cast<char>(*i);
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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void TextStreamBase<char_type, stack_size, heap_block_size>::to_string(std::wstring & str, bool clear_string) const
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{
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if( clear_string )
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str.clear();
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if( str.capacity() < str.size() + size() )
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str.reserve(str.size() + size());
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const_iterator i = begin();
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for( ; i != end() ; ++i)
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str += static_cast<wchar_t>(*i);
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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char_type & TextStreamBase<char_type, stack_size, heap_block_size>::operator[](size_t index)
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{
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return buffer[index];
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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char_type TextStreamBase<char_type, stack_size, heap_block_size>::operator[](size_t index) const
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{
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return buffer[index];
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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TextStreamBase<char_type, stack_size, heap_block_size> &
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TextStreamBase<char_type, stack_size, heap_block_size>::operator<<(const char * str)
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{
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for( ; *str ; ++str)
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buffer.append(static_cast<char_type>(*str));
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return *this;
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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TextStreamBase<char_type, stack_size, heap_block_size> &
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TextStreamBase<char_type, stack_size, heap_block_size>::operator<<(const std::string & str)
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{
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if( sizeof(char_type) == sizeof(char) )
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buffer.append(str.c_str(), str.size());
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else
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operator<<(str.c_str());
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return *this;
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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TextStreamBase<char_type, stack_size, heap_block_size> &
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TextStreamBase<char_type, stack_size, heap_block_size>::operator<<(const wchar_t * str)
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{
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for( ; *str ; ++str)
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buffer.append(static_cast<char_type>(*str));
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return *this;
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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TextStreamBase<char_type, stack_size, heap_block_size> &
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TextStreamBase<char_type, stack_size, heap_block_size>::operator<<(const std::wstring & str)
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{
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if( sizeof(char_type) == sizeof(wchar_t) )
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buffer.append(str.c_str(), str.size());
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else
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operator<<(str.c_str());
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return *this;
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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TextStreamBase<char_type, stack_size, heap_block_size> &
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TextStreamBase<char_type, stack_size, heap_block_size>::operator<<(char v)
|
||||
{
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buffer.append(static_cast<char_type>(v));
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||||
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return *this;
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}
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template<typename char_type, size_t stack_size, size_t heap_block_size>
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TextStreamBase<char_type, stack_size, heap_block_size> &
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TextStreamBase<char_type, stack_size, heap_block_size>::operator<<(wchar_t v)
|
||||
{
|
||||
buffer.append(static_cast<char_type>(v));
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
template<typename char_type, size_t stack_size, size_t heap_block_size>
|
||||
TextStreamBase<char_type, stack_size, heap_block_size> &
|
||||
TextStreamBase<char_type, stack_size, heap_block_size>::operator<<(int v)
|
||||
{
|
||||
return operator<<(static_cast<long>(v));
|
||||
}
|
||||
|
||||
|
||||
template<typename char_type, size_t stack_size, size_t heap_block_size>
|
||||
TextStreamBase<char_type, stack_size, heap_block_size> &
|
||||
TextStreamBase<char_type, stack_size, heap_block_size>::operator<<(long v)
|
||||
{
|
||||
char_type buf[50];
|
||||
size_t len = sizeof(buf) / sizeof(char_type);
|
||||
size_t lenout;
|
||||
|
||||
if( Toa(v, buf, len, radix, &lenout) )
|
||||
buffer.append(buf, lenout);
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
template<typename char_type, size_t stack_size, size_t heap_block_size>
|
||||
TextStreamBase<char_type, stack_size, heap_block_size> &
|
||||
TextStreamBase<char_type, stack_size, heap_block_size>::operator<<(unsigned int v)
|
||||
{
|
||||
return operator<<(static_cast<unsigned long>(v));
|
||||
}
|
||||
|
||||
|
||||
template<typename char_type, size_t stack_size, size_t heap_block_size>
|
||||
TextStreamBase<char_type, stack_size, heap_block_size> &
|
||||
TextStreamBase<char_type, stack_size, heap_block_size>::operator<<(unsigned long v)
|
||||
{
|
||||
char_type buf[50];
|
||||
size_t len = sizeof(buf) / sizeof(char_type);
|
||||
size_t lenout;
|
||||
|
||||
if( Toa(v, buf, len, radix, &lenout) )
|
||||
buffer.append(buf, lenout);
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
template<typename char_type, size_t stack_size, size_t heap_block_size>
|
||||
TextStreamBase<char_type, stack_size, heap_block_size> &
|
||||
TextStreamBase<char_type, stack_size, heap_block_size>::operator<<(double v)
|
||||
{
|
||||
char buf[50];
|
||||
|
||||
// !! IMPROVE ME we need our own double->string convertion
|
||||
sprintf(buf, "%f", v);
|
||||
return operator<<(buf);
|
||||
}
|
||||
|
||||
|
||||
template<typename char_type, size_t stack_size, size_t heap_block_size>
|
||||
TextStreamBase<char_type, stack_size, heap_block_size> &
|
||||
TextStreamBase<char_type, stack_size, heap_block_size>::operator<<(const void * v)
|
||||
{
|
||||
char_type buf[50];
|
||||
size_t len = sizeof(buf) / sizeof(char_type);
|
||||
size_t lenout;
|
||||
|
||||
buf[0] = '0';
|
||||
buf[1] = 'x';
|
||||
|
||||
if( Toa(reinterpret_cast<unsigned long>(v), buf+2, len-2, 16, &lenout) )
|
||||
buffer.append(buf, lenout+2);
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
|
||||
template<typename char_type, size_t stack_size, size_t heap_block_size>
|
||||
TextStreamBase<char_type, stack_size, heap_block_size> &
|
||||
TextStreamBase<char_type, stack_size, heap_block_size>::write(const char * buf, size_t len)
|
||||
{
|
||||
if( sizeof(char_type) == sizeof(char) )
|
||||
buffer.append(buf, len);
|
||||
else
|
||||
operator<<(buf);
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
|
||||
template<typename char_type, size_t stack_size, size_t heap_block_size>
|
||||
TextStreamBase<char_type, stack_size, heap_block_size> &
|
||||
TextStreamBase<char_type, stack_size, heap_block_size>::write(const wchar_t * buf, size_t len)
|
||||
{
|
||||
if( sizeof(char_type) == sizeof(wchar_t) )
|
||||
buffer.append(buf, len);
|
||||
else
|
||||
operator<<(buf);
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
template<typename char_type, size_t stack_size, size_t heap_block_size>
|
||||
TextStreamBase<char_type, stack_size, heap_block_size> &
|
||||
TextStreamBase<char_type, stack_size, heap_block_size>::operator<<(const PT::Space & space)
|
||||
{
|
||||
space.Serialize(*this, true, false);
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
|
||||
template<typename char_type, size_t stack_size, size_t heap_block_size>
|
||||
TextStreamBase<char_type, stack_size, heap_block_size> &
|
||||
TextStreamBase<char_type, stack_size, heap_block_size>::operator<<(const PT::Date & date)
|
||||
{
|
||||
date.Serialize(*this);
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
} // namespace
|
||||
|
||||
|
||||
|
||||
#endif
|
||||
Loading…
Reference in new issue