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Jehan 55b4f23971 Single Byte charsets: high ctrl character ratio lowers confidence. 
Control characters are not an error per-se. Nevertheless they are clearly not
frequent in single-byte charset texts. It is only normal for them to lower
confidence in a charset. In particular a higher ctrl-per-letter ratio means
a lower confidence.
This fixes for instance our Windows-1252 German test (otherwise detected as
ISO-8859-1).
2015-12-04 00:04:43 +01:00
build-mac Added shared scheme 2014-10-26 00:24:03 -07:00
doc Update README and manual... 2015-11-27 18:27:11 +01:00
script LangModels: adding German models for ISO-8859-1 and Windows-1252. 2015-12-03 23:58:41 +01:00
src Single Byte charsets: high ctrl character ratio lowers confidence. 2015-12-04 00:04:43 +01:00
test LangModels: adding German models for ISO-8859-1 and Windows-1252. 2015-12-03 23:58:41 +01:00
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AUTHORS Update authors. 2015-12-03 19:44:13 +01:00
CMakeLists.txt Release: version 0.0.4. 2015-12-03 19:48:58 +01:00
COPYING Add authors. 2011-07-13 20:16:23 +08:00
INSTALL Add description of installation. 2011-07-11 23:14:57 +08:00
README.md README: update with Windows-1252 support information. 2015-12-03 21:25:53 +01:00
uchardet.pc.in Refine Description in pkgconfig file 2015-09-21 09:37:36 +08:00

README.md

uchardet

uchardet is an encoding detector library, which takes a sequence of bytes in an unknown character encoding without any additional information, and attempts to determine the encoding of the text. Returned encoding names are iconv-compatible.

uchardet started as a C language binding of the original C++ implementation of the universal charset detection library by Mozilla. It can now detect more charsets, and more reliably than the original implementation.

The original code of universalchardet is available at http://lxr.mozilla.org/seamonkey/source/extensions/universalchardet/

Techniques used by universalchardet are described at http://www.mozilla.org/projects/intl/UniversalCharsetDetection.html

Supported Encodings

  • International (Unicode)
    • UTF-8
    • UTF-16BE / UTF-16LE
    • UTF-32BE / UTF-32LE / X-ISO-10646-UCS-4-34121 / X-ISO-10646-UCS-4-21431
  • Chinese
    • ISO-2022-CN
    • BIG5
    • EUC-TW
    • GB18030
    • HZ-GB-2312
  • Japanese
    • ISO-2022-JP
    • SHIFT_JIS
    • EUC-JP
  • Korean
    • ISO-2022-KR
    • EUC-KR
  • Cyrillic
    • ISO-8859-5
    • KOI8-R
    • WINDOWS-1251
    • MAC-CYRILLIC
    • IBM866
    • IBM855
  • Greek
    • ISO-8859-7
    • WINDOWS-1253
  • Hebrew
    • ISO-8859-8
    • WINDOWS-1255
  • Thai
    • TIS-620
  • French
    • ISO-8859-1
    • ISO-8859-15
    • WINDOWS-1252
  • English
    • ASCII
  • Hungarian:
    • ISO-8859-2
    • WINDOWS-1250
  • Others
    • WINDOWS-1252

Installation

Debian/Ubuntu/Mint

apt-get install uchardet libuchardet-dev

Mageia

urpmi libuchardet libuchardet-devel

Mac

brew install uchardet

Build from source

cmake .
make
make install

Usage

Command Line

uchardet Command Line Tool
Version 0.0.4

Authors: BYVoid, Jehan
Bug Report: https://github.com/BYVoid/uchardet/issues

Usage:
 uchardet [Options] [File]...

Options:
 -v, --version         Print version and build information.
 -h, --help            Print this help.

Library

See uchardet.h

Related Projects

License

Mozilla Public License Version 1.1