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Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-1.5.3/src/InputBuffer.cpp')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-1.5.3/src/InputBuffer.cpp | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-1.5.3/src/InputBuffer.cpp b/Build/source/texk/dvisvgm/dvisvgm-1.5.3/src/InputBuffer.cpp deleted file mode 100644 index 79e0dcf39c7..00000000000 --- a/Build/source/texk/dvisvgm/dvisvgm-1.5.3/src/InputBuffer.cpp +++ /dev/null @@ -1,138 +0,0 @@ -/************************************************************************* -** InputBuffer.cpp ** -** ** -** This file is part of dvisvgm -- the DVI to SVG converter ** -** Copyright (C) 2005-2014 Martin Gieseking <martin.gieseking@uos.de> ** -** ** -** This program is free software; you can redistribute it and/or ** -** modify it under the terms of the GNU General Public License as ** -** published by the Free Software Foundation; either version 3 of ** -** the License, or (at your option) any later version. ** -** ** -** This program is distributed in the hope that it will be useful, but ** -** WITHOUT ANY WARRANTY; without even the implied warranty of ** -** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** -** GNU General Public License for more details. ** -** ** -** You should have received a copy of the GNU General Public License ** -** along with this program; if not, see <http://www.gnu.org/licenses/>. ** -*************************************************************************/ - -#include <config.h> -#include <cmath> -#include <cstring> -#include "InputBuffer.h" - -using namespace std; - - -StreamInputBuffer::StreamInputBuffer (istream &is, size_t bufsize) - : _is(is), _bufsize(bufsize), _buf1(new UInt8[_bufsize]), _buf2(new UInt8[_bufsize]), _bufptr(_buf1) -{ - _size1 = fillBuffer(_buf1); - _size2 = fillBuffer(_buf2); -} - - -StreamInputBuffer::~StreamInputBuffer () { - delete [] _buf1; - delete [] _buf2; -} - - -int StreamInputBuffer::get () { - if (pos() == _size1) { - if (_size2 == 0) - return -1; - swap(_buf1, _buf2); - _size1 = _size2; - _bufptr = _buf1; - _size2 = fillBuffer(_buf2); - } - UInt8 c = *_bufptr++; - return c; -} - - -/** Returns the next character to be read without skipping it. - * Same as peek(0). */ -int StreamInputBuffer::peek () const { - if (pos() < _size1) - return *_bufptr; - return _size2 > 0 ? *_buf2 : -1; -} - - -/** Returns the n-th next character without skipping it. */ -int StreamInputBuffer::peek (size_t n) const { - if (pos()+n < _size1) - return *(_bufptr+n); - if (pos()+n < _size1+_size2) - return *(_buf2 + pos()+n-_size1); - return -1; -} - - -/** Fills the buffer by reading a sequence of characters from the assigned - * input stream. - * @param[in] buf pointer to character buffer to be filled - * @return number of characters read */ -int StreamInputBuffer::fillBuffer (UInt8 *buf) { - if (_is && !_is.eof()) { - _is.read((char*)buf, _bufsize); - return _is.gcount(); - } - return 0; -} - -/////////////////////////////////////////////// - -SplittedCharInputBuffer::SplittedCharInputBuffer (const char *buf1, size_t s1, const char *buf2, size_t s2) { - _buf[0] = buf1; - _buf[1] = buf2; - _size[0] = buf1 ? s1 : 0; - _size[1] = buf2 ? s2 : 0; - _index = _size[0] ? 0 : 1; -} - - -int SplittedCharInputBuffer::get () { - if (_size[_index] == 0) - return -1; - int ret = *_buf[_index]++; - _size[_index]--; - if (_index == 0 && _size[0] == 0) - _index++; - return ret; -} - - -int SplittedCharInputBuffer::peek () const { - return _size[_index] ? *_buf[_index] : -1; -} - - -int SplittedCharInputBuffer::peek (size_t n) const { - if (n < _size[_index]) - return _buf[_index][n]; - n -= _size[_index]; - if (_index == 0 && n < _size[1]) - return _buf[1][n]; - return -1; -} - -/////////////////////////////////////////////// - - -int TextStreamInputBuffer::get () { - int c = StreamInputBuffer::get(); - if (c == '\n') { - _line++; - _col = 1; - } - else - _col++; - return c; -} - - |