android:icon=,GitHub - chenqiu1024/iconv-android: Iconv lib with android build scripts.

本文介绍了GNU libiconv库,一个用于在缺少或不支持Unicode转换的系统中提供iconv函数实现的工具。它支持多种编码,包括欧洲语言、亚洲语言等,并详细列出了各种编码类型。此外,还讨论了安装步骤、不同模式的使用以及它在多语言应用中的重要性。

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GNU LIBICONV - character set conversion library

This library provides an iconv() implementation, for use on systems which

don't have one, or whose implementation cannot convert from/to Unicode.

It provides support for the encodings:

European languages

ASCII, ISO-8859-{1,2,3,4,5,7,9,10,13,14,15,16},

KOI8-R, KOI8-U, KOI8-RU,

CP{1250,1251,1252,1253,1254,1257}, CP{850,866,1131},

Mac{Roman,CentralEurope,Iceland,Croatian,Romania},

Mac{Cyrillic,Ukraine,Greek,Turkish},

Macintosh

Semitic languages

ISO-8859-{6,8}, CP{1255,1256}, CP862, Mac{Hebrew,Arabic}

Japanese

EUC-JP, SHIFT_JIS, CP932, ISO-2022-JP, ISO-2022-JP-2, ISO-2022-JP-1

Chinese

EUC-CN, HZ, GBK, CP936, GB18030, EUC-TW, BIG5, CP950, BIG5-HKSCS,

BIG5-HKSCS:2001, BIG5-HKSCS:1999, ISO-2022-CN, ISO-2022-CN-EXT

Korean

EUC-KR, CP949, ISO-2022-KR, JOHAB

Armenian

ARMSCII-8

Georgian

Georgian-Academy, Georgian-PS

Tajik

KOI8-T

Kazakh

PT154, RK1048

Thai

ISO-8859-11, TIS-620, CP874, MacThai

Laotian

MuleLao-1, CP1133

Vietnamese

VISCII, TCVN, CP1258

Platform specifics

HP-ROMAN8, NEXTSTEP

Full Unicode

UTF-8

UCS-2, UCS-2BE, UCS-2LE

UCS-4, UCS-4BE, UCS-4LE

UTF-16, UTF-16BE, UTF-16LE

UTF-32, UTF-32BE, UTF-32LE

UTF-7

C99, JAVA

Full Unicode, in terms of `uint16_t' or `uint32_t'

(with machine dependent endianness and alignment)

UCS-2-INTERNAL, UCS-4-INTERNAL

Locale dependent, in terms of `char' or `wchar_t'

(with machine dependent endianness and alignment, and with OS and

locale dependent semantics)

char, wchar_t

The empty encoding name "" is equivalent to "char": it denotes the

locale dependent character encoding.

When configured with the option --enable-extra-encodings, it also provides

support for a few extra encodings:

European languages

CP{437,737,775,852,853,855,857,858,860,861,863,865,869,1125}

Semitic languages

CP864

Japanese

EUC-JISX0213, Shift_JISX0213, ISO-2022-JP-3

Chinese

BIG5-2003 (experimental)

Turkmen

TDS565

Platform specifics

ATARIST, RISCOS-LATIN1

It can convert from any of these encodings to any other, through Unicode

conversion.

It has also some limited support for transliteration, i.e. when a character

cannot be represented in the target character set, it can be approximated

through one or several similarly looking characters. Transliteration is

activated when "//TRANSLIT" is appended to the target encoding name.

libiconv is for you if your application needs to support multiple character

encodings, but that support lacks from your system.

Installation

------------

As usual for GNU packages:

$ ./configure --prefix=/usr/local

$ make

$ make install

After installing GNU libiconv for the first time, it is recommended to

recompile and reinstall GNU gettext, so that it can take advantage of

libiconv.

On systems other than GNU/Linux, the iconv program will be internationalized

only if GNU gettext has been built and installed before GNU libiconv. This

means that the first time GNU libiconv is installed, we have a circular

dependency between the GNU libiconv and GNU gettext packages, which can be

resolved by building and installing either

- first libiconv, then gettext, then libiconv again,

or (on systems supporting shared libraries, excluding AIX)

- first gettext, then libiconv, then gettext again.

Recall that before building a package for the second time, you need to erase

the traces of the first build by running "make distclean".

This library can be built and installed in two variants:

- The library mode. This works on all systems, and uses a library

`libiconv.so' and a header file `'. (Both are installed

through "make install".)

To use it, simply #include and use the functions.

To use it in an autoconfiguring package:

- If you don't use automake, append m4/iconv.m4 to your aclocal.m4

file.

- If you do use automake, add m4/iconv.m4 to your m4 macro repository.

- Add to the link command line of libraries and executables that use

the functions the placeholder @LIBICONV@ (or, if using libtool for

the link, @LTLIBICONV@). If you use automake, the right place for

these additions are the *_LDADD variables.

Note that 'iconv.m4' is also part of the GNU gettext package, which

installs it in /usr/local/share/aclocal/iconv.m4.

- The libc plug/override mode. This works on GNU/Linux, Solaris and OSF/1

systems only. It is a way to get good iconv support without having

glibc-2.1.

It installs a library `preloadable_libiconv.so'. This library can be used

with LD_PRELOAD, to override the iconv* functions present in the C library.

On GNU/Linux and Solaris:

$ export LD_PRELOAD=/usr/local/lib/preloadable_libiconv.so

On OSF/1:

$ export _RLD_LIST=/usr/local/lib/preloadable_libiconv.so:DEFAULT

A program's source need not be modified, the program need not even be

recompiled. Just set the LD_PRELOAD environment variable, that's it!

Copyright

---------

The libiconv and libcharset _libraries_ and their header files are under LGPL,

see file COPYING.LIB.

The iconv _program_ and the documentation are under GPL, see file COPYING.

Download

--------

http://ftp.gnu.org/gnu/libiconv/libiconv-1.13.1.tar.gz

Homepage

--------

http://www.gnu.org/software/libiconv/

Bug reports to

--------------

Bruno Haible

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