From 47d455dd55be855e4cc691c32f687f723d9247ee Mon Sep 17 00:00:00 2001 From: toma Date: Wed, 25 Nov 2009 17:56:58 +0000 Subject: Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features. BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da --- .../plugins/djvu/libdjvu/UnicodeByteStream.cpp | 368 +++++++++++++++++++++ 1 file changed, 368 insertions(+) create mode 100644 kviewshell/plugins/djvu/libdjvu/UnicodeByteStream.cpp (limited to 'kviewshell/plugins/djvu/libdjvu/UnicodeByteStream.cpp') diff --git a/kviewshell/plugins/djvu/libdjvu/UnicodeByteStream.cpp b/kviewshell/plugins/djvu/libdjvu/UnicodeByteStream.cpp new file mode 100644 index 00000000..8d4f0188 --- /dev/null +++ b/kviewshell/plugins/djvu/libdjvu/UnicodeByteStream.cpp @@ -0,0 +1,368 @@ +//C- -*- C++ -*- +//C- ------------------------------------------------------------------- +//C- DjVuLibre-3.5 +//C- Copyright (c) 2002 Leon Bottou and Yann Le Cun. +//C- Copyright (c) 2001 AT&T +//C- +//C- This software is subject to, and may be distributed under, the +//C- GNU General Public License, Version 2. The license should have +//C- accompanied the software or you may obtain a copy of the license +//C- from the Free Software Foundation at http://www.fsf.org . +//C- +//C- This program is distributed in the hope that it will be useful, +//C- but WITHOUT ANY WARRANTY; without even the implied warranty of +//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +//C- GNU General Public License for more details. +//C- +//C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library +//C- distributed by Lizardtech Software. On July 19th 2002, Lizardtech +//C- Software authorized us to replace the original DjVu(r) Reference +//C- Library notice by the following text (see doc/lizard2002.djvu): +//C- +//C- ------------------------------------------------------------------ +//C- | DjVu (r) Reference Library (v. 3.5) +//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved. +//C- | The DjVu Reference Library is protected by U.S. Pat. No. +//C- | 6,058,214 and patents pending. +//C- | +//C- | This software is subject to, and may be distributed under, the +//C- | GNU General Public License, Version 2. The license should have +//C- | accompanied the software or you may obtain a copy of the license +//C- | from the Free Software Foundation at http://www.fsf.org . +//C- | +//C- | The computer code originally released by LizardTech under this +//C- | license and unmodified by other parties is deemed "the LIZARDTECH +//C- | ORIGINAL CODE." Subject to any third party intellectual property +//C- | claims, LizardTech grants recipient a worldwide, royalty-free, +//C- | non-exclusive license to make, use, sell, or otherwise dispose of +//C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the +//C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU +//C- | General Public License. This grant only confers the right to +//C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to +//C- | the extent such infringement is reasonably necessary to enable +//C- | recipient to make, have made, practice, sell, or otherwise dispose +//C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to +//C- | any greater extent that may be necessary to utilize further +//C- | modifications or combinations. +//C- | +//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY +//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED +//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF +//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. +//C- +------------------------------------------------------------------ +// +// $Id: UnicodeByteStream.cpp,v 1.8 2003/11/07 22:08:22 leonb Exp $ +// $Name: release_3_5_15 $ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif +#if NEED_GNUG_PRAGMAS +# pragma implementation +#endif + +#include "UnicodeByteStream.h" +#include "ByteStream.h" + + +#ifdef HAVE_NAMESPACES +namespace DJVU { +# ifdef NOT_DEFINED // Just to fool emacs c++ mode +} +#endif +#endif + +UnicodeByteStream::UnicodeByteStream(const UnicodeByteStream &uni) +: bs(uni.bs), buffer(uni.buffer), bufferpos(uni.bufferpos), linesread(0) +{ + startpos=bs->tell(); +} + +UnicodeByteStream::UnicodeByteStream( + GP ibs,const GStringRep::EncodeType et) +: bs(ibs), bufferpos(0), linesread(0) +{ + buffer=GUTF8String::create(0,0,et); + startpos=bs->tell(); +} + +UnicodeByteStream::~UnicodeByteStream() +{} + +static int +CountLines(const GUTF8String &str) +{ + int retval=0; + static const unsigned long lf='\n'; + for(int pos=0;(pos=str.search(lf,pos)+1)>0;++retval) + EMPTY_LOOP; + return retval; +} + +void +UnicodeByteStream::set_encodetype(const GStringRep::EncodeType et) +{ + seek(startpos,SEEK_SET); + bufferpos=0; + buffer=GUTF8String::create(0,0,et); +} + +void +UnicodeByteStream::set_encoding(const GUTF8String &xencoding) +{ + seek(startpos,SEEK_SET); + bufferpos=0; + buffer=GUTF8String::create(0,0,xencoding); +} + +size_t +UnicodeByteStream::read(void *buf, size_t size) +{ + bufferpos=0; + const int retval=bs->read(buf,size); + if(retval) + { + buffer=GUTF8String::create( + (unsigned char const *)buf,retval,buffer.get_remainder()); + }else + { + buffer=GUTF8String::create(0,0,buffer.get_remainder()); + } + return retval; +} + +size_t +UnicodeByteStream::write(const void *buf, size_t size) +{ + bufferpos=0; + buffer=GUTF8String::create(0,0,buffer.get_remainder()); + return bs->write(buf,size); +} + +long +UnicodeByteStream::tell(void) const +{ + return bs->tell(); +} + +UnicodeByteStream & +UnicodeByteStream::operator=(UnicodeByteStream &uni) +{ + bs=uni.bs; + bufferpos=uni.bufferpos; + buffer=uni.buffer; + return *this; +} + +int +UnicodeByteStream::seek +(long offset, int whence, bool nothrow) +{ + int retval=bs->seek(offset,whence,nothrow); + bufferpos=0; + buffer=GUTF8String::create(0,0,buffer.get_remainder()); + return retval; +} + +void +UnicodeByteStream::flush(void) +{ + bs->flush(); + bufferpos=0; + buffer=GUTF8String::create(0,0,buffer.get_remainder()); +} + + + +GUTF8String +UnicodeByteStream::gets( + size_t const t,unsigned long const stopat,bool const inclusive) +{ + GUTF8String retval; + unsigned int len=buffer.length()-bufferpos; + if(!len) + { + int i; + char *buf; + static const size_t bufsize=327680; + GPBuffer gbuf(buf,bufsize); + while((i=read(buf,bufsize)>0)) + { + if((len=buffer.length()-bufferpos)) + break; + } + } + if(len) + { + int i=buffer.search((char)stopat,bufferpos); + if(i>=0) + { + if(inclusive) + { + ++i; + } + if(t&&(i>(int)t+bufferpos)) + { + i=t+bufferpos; + } + if(i>bufferpos) + { + retval=buffer.substr(bufferpos,i-bufferpos); + } + bufferpos=i; + linesread+=CountLines(retval); + }else + { + retval=buffer.substr(bufferpos,len); + bufferpos=buffer.length(); + linesread+=CountLines(retval); + retval+=gets(t?(t-(i-bufferpos)):0,stopat,inclusive); + } + } + return retval; +} + +XMLByteStream::XMLByteStream(UnicodeByteStream &uni) +: UnicodeByteStream(uni) {} + +XMLByteStream::XMLByteStream(GP &ibs) +: UnicodeByteStream(ibs,GStringRep::XOTHER) +{} + +GP +XMLByteStream::create(GP ibs) +{ + XMLByteStream *xml=new XMLByteStream(ibs); + GP retval=xml; + xml->init(); + return retval; +} + +void +XMLByteStream::init(void) +{ + unsigned char buf[4]; + GP ibs=bs; + bufferpos=0; + bs->readall(buf,sizeof(buf)); + const unsigned int i=(buf[0]<<8)+buf[1]; + switch(i) + { + case 0x0000: + { + const unsigned int j=(buf[2]<<8)+buf[3]; + switch(j) + { + case 0x003C: + { + buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUCS4BE); + break; + } + case 0x3C00: + { + buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUCS4_2143); + break; + } + case 0xFEFF: + { + buffer=GUTF8String::create(0,0,GStringRep::XUCS4BE); + startpos+=sizeof(buf); + break; + } + case 0xFFFE: + { + buffer=GUTF8String::create(0,0,GStringRep::XUCS4_2143); + startpos+=sizeof(buf); + break; + } + default: + { + buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUTF8); + break; + } + } + } + case 0x003C: + { + const unsigned int j=(buf[2]<<8)+buf[3]; + switch(j) + { + case 0x0000: + buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUCS4_3412); + break; + case 0x003F: + buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUTF16BE); + break; + default: + buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUTF8); + break; + } + break; + } + case 0x3C00: + { + const unsigned int j=(buf[2]<<8)+buf[3]; + switch(j) + { + case 0x0000: + buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUCS4LE); + break; + case 0x3F00: + buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUTF16LE); + break; + default: + buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUTF8); + break; + } + break; + } + case 0x4C6F: + { + const unsigned int j=(buf[2]<<8)+buf[3]; + buffer=GUTF8String::create(buf,sizeof(buf), + (j == 0xA794)?(GStringRep::XEBCDIC):(GStringRep::XUTF8)); + break; + } + case 0xFFFE: + { + buffer=GUTF8String::create(buf+2,sizeof(buf)-2,GStringRep::XUTF16LE); + startpos+=2; + break; + } + case 0xFEFF: + { + buffer=GUTF8String::create(buf+2,sizeof(buf)-2,GStringRep::XUTF16BE); + startpos+=2; + break; + } + case 0xEFBB: + { + if(buf[2] == 0xBF) + { + buffer=GUTF8String::create(buf+3,sizeof(buf)-3,GStringRep::XUTF8); + startpos+=3; + }else + { + buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUTF8); + } + break; + } + case 0x3C3F: + default: + { + buffer=GUTF8String::create(buf,sizeof(buf),GStringRep::XUTF8); + } + } + bs=ibs; +} + +XMLByteStream::~XMLByteStream() +{} + + +#ifdef HAVE_NAMESPACES +} +# ifndef NOT_USING_DJVU_NAMESPACE +using namespace DJVU; +# endif +#endif -- cgit v1.2.3