/**************************************************************************** ** ** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/legal ** ** This file is part of the documentation of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:FDL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and Digia. For licensing terms and ** conditions see http://qt.digia.com/licensing. For further information ** use the contact form at http://qt.digia.com/contact-us. ** ** GNU Free Documentation License Usage ** Alternatively, this file may be used under the terms of the GNU Free ** Documentation License version 1.3 as published by the Free Software ** Foundation and appearing in the file included in the packaging of ** this file. Please review the following information to ensure ** the GNU Free Documentation License version 1.3 requirements ** will be met: http://www.gnu.org/copyleft/fdl.html. ** $QT_END_LICENSE$ ** ****************************************************************************/ /*! \group codecs \title Codecs \ingroup groups \brief Codec support in Qt. These codecs provide facilities for conversion between Unicode and specific text encodings. \generatelist{related} */ /*! \page codec-big5.html \title Big5 Text Codec \ingroup codecs The Big5 codec provides conversion to and from the Big5 encoding. The code was originally contributed by Ming-Che Chuang \ for the Big-5+ encoding, and was included in Qt with the author's permission, and the grateful thanks of the Qt team. (Note: Ming-Che's code is QPL'd, as per an mail to qt-info@nokia.com.) However, since Big-5+ was never formally approved, and was never used by anyone, the Taiwan Free Software community and the Li18nux Big5 Standard Subgroup agree that the de-facto standard Big5-ETen (zh_TW.Big5 or zh_TW.TW-Big5) be used instead. The Big5 is currently implemented as a pure subset of the Big5-HKSCS codec, so more fine-tuning is needed to make it identical to the standard Big5 mapping as determined by Li18nux-Big5. See \l{http://www.autrijus.org/xml/} for the draft Big5 (2002) standard. James Su \ \ generated the Big5-HKSCS-to-Unicode tables with a very space-efficient algorithm. He generously donated his code to glibc in May 2002. Subsequently, James has kindly allowed Anthony Fok \ \ to adapt the code for Qt. \legalese Copyright (C) 2000 Ming-Che Chuang \BR Copyright (C) 2002 James Su, Turbolinux Inc. \BR Copyright (C) 2002 Anthony Fok, ThizLinux Laboratory Ltd. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: \list 1 \o Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. \o 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. \endlist THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 REGENTS 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. \endlegalese */ /*! \page codec-big5hkscs.html \title Big5-HKSCS Text Codec \ingroup codecs The Big5-HKSCS codec provides conversion to and from the Big5-HKSCS encoding. The codec grew out of the QBig5Codec originally contributed by Ming-Che Chuang \. James Su \ \ and Anthony Fok \ \ implemented HKSCS-1999 QBig5hkscsCodec for Qt-2.3.x, but it was too late in Qt development schedule to be officially included in the Qt-2.3.x series. Wu Yi \ ported the HKSCS-1999 QBig5hkscsCodec to Qt-3.0.1 in March 2002. With the advent of the new HKSCS-2001 standard, James Su \ \ generated the Big5-HKSCS<->Unicode tables with a very space-efficient algorithm. He generously donated his code to glibc in May 2002. Subsequently, James has generously allowed Anthony Fok to adapt the code for Qt-3.0.5. Currently, the Big5-HKSCS tables are generated from the following sources, and with the Euro character added: \list 1 \o \l{http://www.microsoft.com/typography/unicode/950.txt} \o \l{http://www.info.gov.hk/digital21/chi/hkscs/download/big5-iso.txt} \o \l{http://www.info.gov.hk/digital21/chi/hkscs/download/big5cmp.txt} \endlist There may be more fine-tuning to the QBig5hkscsCodec to maximize its compatibility with the standard Big5 (2002) mapping as determined by Li18nux Big5 Standard Subgroup. See \l{http://www.autrijus.org/xml/} for the various Big5 CharMapML tables. \legalese Copyright (C) 2000 Ming-Che Chuang \BR Copyright (C) 2001, 2002 James Su, Turbolinux Inc. \BR Copyright (C) 2002 WU Yi, HancomLinux Inc. \BR Copyright (C) 2001, 2002 Anthony Fok, ThizLinux Laboratory Ltd. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: \list 1 \o Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. \o 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. \endlist THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 REGENTS 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. \endlegalese */ /*! \page codec-eucjp.html \title EUC-JP Text Codec \ingroup codecs The EUC-JP codec provides conversion to and from EUC-JP, the main legacy encoding for Unix machines in Japan. The environment variable \c UNICODEMAP_JP can be used to fine-tune the JIS, Shift-JIS, and EUC-JP codecs. The \l{ISO 2022-JP (JIS) Text Codec} documentation describes how to use this variable. Most of the code here was written by Serika Kurusugawa, a.k.a. Junji Takagi, and is included in Qt with the author's permission and the grateful thanks of the Qt team. Here is the copyright statement for that code: \legalese Copyright (C) 1999 Serika Kurusugawa. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: \list 1 \o Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. \o 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. \endlist THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS". 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 REGENTS 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. \endlegalese */ /*! \page codec-euckr.html \title EUC-KR Text Codec \ingroup codecs The EUC-KR codec provides conversion to and from EUC-KR, KR, the main legacy encoding for Unix machines in Korea. It was largely written by Mizi Research Inc. Here is the copyright statement for the code as it was at the point of contribution. The subsequent modifications are covered by the usual copyright for Qt. \legalese Copyright (C) 1999-2000 Mizi Research Inc. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: \list 1 \o Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. \o 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. \endlist THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 REGENTS 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. \endlegalese */ /*! \page codec-gbk.html \title GBK Text Codec \ingroup codecs The GBK codec provides conversion to and from the Chinese GB18030/GBK/GB2312 encoding. GBK, formally the Chinese Internal Code Specification, is a commonly used extension of GB 2312-80. Microsoft Windows uses it under the name codepage 936. GBK has been superseded by the new Chinese national standard GB 18030-2000, which added a 4-byte encoding while remaining compatible with GB2312 and GBK. The new GB 18030-2000 may be described as a special encoding of Unicode 3.x and ISO-10646-1. Special thanks to charset gurus Markus Scherer (IBM), Dirk Meyer (Adobe Systems) and Ken Lunde (Adobe Systems) for publishing an excellent GB 18030-2000 summary and specification on the Internet. Some must-read documents are: \list \o \l{ftp://ftp.oreilly.com/pub/examples/nutshell/cjkv/pdf/GB18030_Summary.pdf} \o \l{http://oss.software.ibm.com/cvs/icu/~checkout~/charset/source/gb18030/gb18030.html} \o \l{http://oss.software.ibm.com/cvs/icu/~checkout~/charset/data/xml/gb-18030-2000.xml} \endlist The GBK codec was contributed to Qt by Justin Yu \ and Sean Chen \. They may also be reached at Yu Mingjian \, \ Chen Xiangyang \ The GB18030 codec Qt functions were contributed to Qt by James Su \, \ who pioneered much of GB18030 development on GNU/Linux systems. The GB18030 codec was contributed to Qt by Anthony Fok \, \ using a Perl script to generate C++ tables from gb-18030-2000.xml while merging contributions from James Su, Justin Yu and Sean Chen. A copy of the source Perl script is available at \l{http://people.debian.org/~foka/gb18030/gen-qgb18030codec.pl} The copyright notice for their code follows: \legalese Copyright (C) 2000 TurboLinux, Inc. Written by Justin Yu and Sean Chen. \BR Copyright (C) 2001, 2002 Turbolinux, Inc. Written by James Su. \BR Copyright (C) 2001, 2002 ThizLinux Laboratory Ltd. Written by Anthony Fok. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: \list 1 \o Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. \o 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. \endlist THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 REGENTS 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. \endlegalese */ /*! \page codecs-jis.html \title ISO 2022-JP (JIS) Text Codec \ingroup codecs The JIS codec provides conversion to and from ISO 2022-JP. The environment variable \c UNICODEMAP_JP can be used to fine-tune the JIS, Shift-JIS, and EUC-JP codecs. The mapping names are as for the Japanese XML working group's \link http://www.y-adagio.com/public/standards/tr_xml_jpf/toc.htm XML Japanese Profile\endlink, because it names and explains all the widely used mappings. Here are brief descriptions, written by Serika Kurusugawa: \list \o "unicode-0.9" or "unicode-0201" for Unicode style. This assumes JISX0201 for 0x00-0x7f. (0.9 is a table version of jisx02xx mapping used for Unicode 1.1.) \o "unicode-ascii" This assumes US-ASCII for 0x00-0x7f; some chars (JISX0208 0x2140 and JISX0212 0x2237) are different from Unicode 1.1 to avoid conflict. \o "open-19970715-0201" ("open-0201" for convenience) or "jisx0221-1995" for JISX0221-JISX0201 style. JIS X 0221 is JIS version of Unicode, but a few chars (0x5c, 0x7e, 0x2140, 0x216f, 0x2131) are different from Unicode 1.1. This is used when 0x5c is treated as YEN SIGN. \o "open-19970715-ascii" ("open-ascii" for convenience) for JISX0221-ASCII style. This is used when 0x5c is treated as REVERSE SOLIDUS. \o "open-19970715-ms" ("open-ms" for convenience) or "cp932" for Microsoft Windows style. Windows Code Page 932. Some chars (0x2140, 0x2141, 0x2142, 0x215d, 0x2171, 0x2172) are different from Unicode 1.1. \o "jdk1.1.7" for Sun's JDK style. Same as Unicode 1.1, except that JIS 0x2140 is mapped to UFF3C. Either ASCII or JISX0201 can be used for 0x00-0x7f. \endlist In addition, the extensions "nec-vdc", "ibm-vdc" and "udc" are supported. For example, if you want to use Unicode style conversion but with NEC's extension, set \c UNICODEMAP_JP to \c {unicode-0.9, nec-vdc}. (You will probably need to quote that in a shell command.) Most of the code here was written by Serika Kurusugawa, a.k.a. Junji Takagi, and is included in Qt with the author's permission and the grateful thanks of the Qt team. Here is the copyright statement for that code: \legalese Copyright (C) 1999 Serika Kurusugawa. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: \list 1 \o Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. \o 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. \endlist THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS". 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 REGENTS 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. \endlegalese */ /*! \page codec-sjis.html \title Shift-JIS Text Codec \ingroup codecs The Shift-JIS codec provides conversion to and from Shift-JIS, an encoding of JIS X 0201 Latin, JIS X 0201 Kana and JIS X 0208. The environment variable \c UNICODEMAP_JP can be used to fine-tune the codec. The \l{ISO 2022-JP (JIS) Text Codec} documentation describes how to use this variable. Most of the code here was written by Serika Kurusugawa, a.k.a. Junji Takagi, and is included in Qt with the author's permission and the grateful thanks of the Qt team. Here is the copyright statement for the code as it was at the point of contribution. The subsequent modifications are covered by the usual copyright for Qt. \legalese Copyright (C) 1999 Serika Kurusugawa. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: \list 1 \o Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. \o 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. \endlist THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS". 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 REGENTS 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. \endlegalese */ /*! \page codec-tscii.html \title TSCII Text Codec \ingroup codecs The TSCII codec provides conversion to and from the Tamil TSCII encoding. TSCII, formally the Tamil Standard Code Information Interchange specification, is a commonly used charset for Tamils. The official page for the standard is at \link http://www.tamil.net/tscii/ http://www.tamil.net/tscii/\endlink This codec uses the mapping table found at \link http://www.geocities.com/Athens/5180/tsciiset.html http://www.geocities.com/Athens/5180/tsciiset.html\endlink. Tamil uses composed Unicode which might cause some problems if you are using Unicode fonts instead of TSCII fonts. Most of the code was written by Hans Petter Bieker and is included in Qt with the author's permission and the grateful thanks of the Qt team. Here is the copyright statement for the code as it was at the point of contribution. The subsequent modifications are covered by the usual copyright for Qt: \legalese Copyright (c) 2000 Hans Petter Bieker. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: \list 1 \o Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. \o 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. \endlist THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 REGENTS 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. \endlegalese */