- BaseParser: added possibility to read from TextStream and WTextStream - HTMLParser: added filter(const WTextStream & in, Stream & out, ...) method - added utf8_stream.h with one method: template<typename StreamIteratorType> size_t utf8_to_int( StreamIteratorType & iterator_in, StreamIteratorType & iterator_end, int & res, bool & correct)htmlparserlistener
parent
4902eb6037
commit
17d2c0fb25
@ -0,0 +1,104 @@
|
||||
/*
|
||||
* This file is a part of PikoTools
|
||||
* and is distributed under the (new) BSD licence.
|
||||
* Author: Tomasz Sowa <t.sowa@ttmath.org>
|
||||
*/
|
||||
|
||||
/*
|
||||
* Copyright (c) 2021, Tomasz Sowa
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright notice,
|
||||
* this list of conditions and the following disclaimer.
|
||||
*
|
||||
* * 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.
|
||||
*
|
||||
* * Neither the name Tomasz Sowa nor the names of contributors to this
|
||||
* project may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* 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
|
||||
* 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
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
||||
* THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#ifndef headerfile_picotools_utf8_utf8_stream
|
||||
#define headerfile_picotools_utf8_utf8_stream
|
||||
|
||||
#include "textstream/textstream.h"
|
||||
|
||||
namespace pt
|
||||
{
|
||||
|
||||
|
||||
/*!
|
||||
this function converts one UTF-8 character into one wide-character
|
||||
|
||||
input:
|
||||
iterator_in - an TextStream iterator for reading from
|
||||
iterator_end - an end iterator (can be returned by end() method from TextStream)
|
||||
|
||||
output:
|
||||
res - an output character
|
||||
correct - true if it is a correct character
|
||||
|
||||
the function returns how many characters have been used from the input stream
|
||||
*/
|
||||
template<typename StreamIteratorType>
|
||||
size_t utf8_to_int(
|
||||
StreamIteratorType & iterator_in,
|
||||
StreamIteratorType & iterator_end,
|
||||
int & res,
|
||||
bool & correct)
|
||||
{
|
||||
size_t i, len;
|
||||
unsigned char uz;
|
||||
|
||||
res = 0;
|
||||
correct = false;
|
||||
|
||||
if( iterator_in == iterator_end )
|
||||
return 0;
|
||||
|
||||
uz = *iterator_in;
|
||||
++iterator_in;
|
||||
|
||||
if( !private_namespace::utf8_to_int_first_octet(uz, len, res) )
|
||||
return 1;
|
||||
|
||||
for(i=1 ; i<len ; ++i)
|
||||
{
|
||||
if( iterator_in == iterator_end )
|
||||
return i;
|
||||
|
||||
uz = *iterator_in;
|
||||
++iterator_in;
|
||||
|
||||
if( !private_namespace::utf8_to_int_add_next_octet(uz, res) )
|
||||
return i;
|
||||
}
|
||||
|
||||
if( utf8_check_range(res, len) )
|
||||
correct = true;
|
||||
|
||||
return len;
|
||||
}
|
||||
|
||||
|
||||
|
||||
}
|
||||
|
||||
#endif
|
Loading…
Reference in new issue