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Eneboo - Documentación para desarrolladores
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Eneboo - Documentación para desarrolladores
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The QJisCodec class provides conversion to and from JIS character sets. Más...
#include <qjiscodec.h>
Métodos públicos | |
| virtual int | mibEnum () const |
| const char * | name () const |
| const char * | mimeName () const |
| QTextDecoder * | makeDecoder () const |
| QCString | fromUnicode (const QString &uc, int &lenInOut) const |
| QString | toUnicode (const char *chars, int len) const |
| int | heuristicContentMatch (const char *chars, int len) const |
| int | heuristicNameMatch (const char *hint) const |
| QJisCodec () | |
| ~QJisCodec () | |
| virtual int | mibEnum () const |
| const char * | name () const |
| const char * | mimeName () const |
| QTextDecoder * | makeDecoder () const |
| QCString | fromUnicode (const QString &uc, int &lenInOut) const |
| QString | toUnicode (const char *chars, int len) const |
| int | heuristicContentMatch (const char *chars, int len) const |
| int | heuristicNameMatch (const char *hint) const |
| QJisCodec () | |
| ~QJisCodec () | |
Atributos protegidos | |
| const QJpUnicodeConv * | conv |
The QJisCodec class provides conversion to and from JIS character sets.
More precisely, the QJisCodec class subclasses QTextCodec to provide support for JIS X 0201 Latin, JIS X 0201 Kana, JIS X 0208 and JIS X 0212.
The environment variable UNICODEMAP_JP can be used to fine-tune QJisCodec, QSjisCodec and QEucJpCodec. The mapping names are as for the Japanese XML working group's XML Japanese Profile, because it names and explains all the widely used mappings. Here are brief descriptions, written by Serika Kurusugawa:
"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 Uniocde spec version 1.1.)
"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.
"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.
"open-19970715-ascii" ("open-ascii" for convenience) for JISX0221-ASCII style. This is used when 0x5c is treated as REVERSE SOLIDUS.
"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.
"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.
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 UNICODEMAP_JP to <nobr>{unicode-0.9, nec-vdc}.</nobr> (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 Trolltech team. Here is the copyright statement for that code:
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: 1 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.
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.
| QJisCodec::QJisCodec | ( | ) |
| QJisCodec::~QJisCodec | ( | ) |
| QJisCodec::QJisCodec | ( | ) |
| QJisCodec::~QJisCodec | ( | ) |
QTextCodec subclasses must reimplement either this function or makeEncoder(). It converts the first lenInOut characters of uc from Unicode to the encoding of the subclass. If lenInOut is negative or too large, the length of uc is used instead.
Converts lenInOut characters (not bytes) from uc, producing a QCString. lenInOut will be set to the length of the result (in bytes).
The default implementation makes an encoder with makeEncoder() and converts the input with that. Note that the default makeEncoder() implementation makes an encoder that simply calls this function, hence subclasses must reimplement one function or the other to avoid infinite recursion.
Reimplementado de QTextCodec.
QTextCodec subclasses must reimplement either this function or makeEncoder(). It converts the first lenInOut characters of uc from Unicode to the encoding of the subclass. If lenInOut is negative or too large, the length of uc is used instead.
Converts lenInOut characters (not bytes) from uc, producing a QCString. lenInOut will be set to the length of the result (in bytes).
The default implementation makes an encoder with makeEncoder() and converts the input with that. Note that the default makeEncoder() implementation makes an encoder that simply calls this function, hence subclasses must reimplement one function or the other to avoid infinite recursion.
Reimplementado de QTextCodec.
QTextCodec subclasses must reimplement this function. It examines the first len bytes of chars and returns a value indicating how likely it is that the string is a prefix of text encoded in the encoding of the subclass. A negative return value indicates that the text is detectably not in the encoding (e.g. it contains characters undefined in the encoding). A return value of 0 indicates that the text should be decoded with this codec rather than as ASCII, but there is no particular evidence. The value should range up to len. Thus, most decoders will return -1, 0, or -len.
The characters are not null terminated.
Implementa QTextCodec.
QTextCodec subclasses must reimplement this function. It examines the first len bytes of chars and returns a value indicating how likely it is that the string is a prefix of text encoded in the encoding of the subclass. A negative return value indicates that the text is detectably not in the encoding (e.g. it contains characters undefined in the encoding). A return value of 0 indicates that the text should be decoded with this codec rather than as ASCII, but there is no particular evidence. The value should range up to len. Thus, most decoders will return -1, 0, or -len.
The characters are not null terminated.
Implementa QTextCodec.
| int QJisCodec::heuristicNameMatch | ( | const char * | hint | ) | const [virtual] |
Returns a value indicating how likely it is that this decoder is appropriate for decoding some format that has the given name. The name is compared with the hint.
A good match returns a positive number around the length of the string. A bad match is negative.
The default implementation calls simpleHeuristicNameMatch() with the name of the codec.
Reimplementado de QTextCodec.
| int QJisCodec::heuristicNameMatch | ( | const char * | hint | ) | const [virtual] |
Returns a value indicating how likely it is that this decoder is appropriate for decoding some format that has the given name. The name is compared with the hint.
A good match returns a positive number around the length of the string. A bad match is negative.
The default implementation calls simpleHeuristicNameMatch() with the name of the codec.
Reimplementado de QTextCodec.
| QTextDecoder * QJisCodec::makeDecoder | ( | ) | const [virtual] |
Creates a QTextDecoder which stores enough state to decode chunks of char* data to create chunks of Unicode data. The default implementation creates a stateless decoder, which is only sufficient for the simplest encodings where each byte corresponds to exactly one Unicode character.
The caller is responsible for deleting the returned object.
Reimplementado de QTextCodec.
| QTextDecoder* QJisCodec::makeDecoder | ( | ) | const [virtual] |
Creates a QTextDecoder which stores enough state to decode chunks of char* data to create chunks of Unicode data. The default implementation creates a stateless decoder, which is only sufficient for the simplest encodings where each byte corresponds to exactly one Unicode character.
The caller is responsible for deleting the returned object.
Reimplementado de QTextCodec.
| virtual int QJisCodec::mibEnum | ( | ) | const [virtual] |
Subclasses of QTextCodec must reimplement this function. It returns the MIBenum (see the IANA character-sets encoding file for more information). It is important that each QTextCodec subclass returns the correct unique value for this function.
Implementa QTextCodec.
| int QJisCodec::mibEnum | ( | ) | const [virtual] |
Subclasses of QTextCodec must reimplement this function. It returns the MIBenum (see the IANA character-sets encoding file for more information). It is important that each QTextCodec subclass returns the correct unique value for this function.
Implementa QTextCodec.
| const char* QJisCodec::mimeName | ( | ) | const [virtual] |
Returns the preferred mime name of the encoding as defined in the IANA character-sets encoding file.
Reimplementado de QTextCodec.
| const char * QJisCodec::mimeName | ( | ) | const [virtual] |
Returns the codec's mime name.
Reimplementado de QTextCodec.
| const char* QJisCodec::name | ( | ) | const [virtual] |
QTextCodec subclasses must reimplement this function. It returns the name of the encoding supported by the subclass. When choosing a name for an encoding, consider these points: On X11, heuristicNameMatch( const char * hint ) is used to test if a the QTextCodec can convert between Unicode and the encoding of a font with encoding hint, such as "iso8859-1" for Latin-1 fonts, "koi8-r" for Russian KOI8 fonts. The default algorithm of heuristicNameMatch() uses name(). Some applications may use this function to present encodings to the end user.
Implementa QTextCodec.
| const char * QJisCodec::name | ( | ) | const [virtual] |
QTextCodec subclasses must reimplement this function. It returns the name of the encoding supported by the subclass. When choosing a name for an encoding, consider these points: On X11, heuristicNameMatch( const char * hint ) is used to test if a the QTextCodec can convert between Unicode and the encoding of a font with encoding hint, such as "iso8859-1" for Latin-1 fonts, "koi8-r" for Russian KOI8 fonts. The default algorithm of heuristicNameMatch() uses name(). Some applications may use this function to present encodings to the end user.
Implementa QTextCodec.
QTextCodec subclasses must reimplement this function or makeDecoder(). It converts the first len characters of chars to Unicode.
The default implementation makes a decoder with makeDecoder() and converts the input with that. Note that the default makeDecoder() implementation makes a decoder that simply calls this function, hence subclasses must reimplement one function or the other to avoid infinite recursion.
Reimplementado de QTextCodec.
QTextCodec subclasses must reimplement this function or makeDecoder(). It converts the first len characters of chars to Unicode.
The default implementation makes a decoder with makeDecoder() and converts the input with that. Note that the default makeDecoder() implementation makes a decoder that simply calls this function, hence subclasses must reimplement one function or the other to avoid infinite recursion.
Reimplementado de QTextCodec.
const QJpUnicodeConv * QJisCodec::conv [protected] |
1.7.4
