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cChardet/readme.md
PyYoshi 49fbef7066 fix
2012-06-21 00:15:49 +09:00

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cChardet

This library is high speed universal character encoding detector. - binding to charsetdetect.

This library is faster than chardet.

Support codecs

  • Big5
  • EUC-JP
  • EUC-KR
  • GB18030
  • gb18030
  • HZ-GB-2312
  • IBM855
  • IBM866
  • ISO-2022-CN
  • ISO-2022-JP
  • ISO-2022-KR
  • ISO-8859-2
  • ISO-8859-5
  • ISO-8859-7
  • ISO-8859-8
  • KOI8-R
  • Shift_JIS
  • TIS-620
  • UTF-8
  • UTF-16BE
  • UTF-16LE
  • UTF-32BE
  • UTF-32LE
  • windows-1250
  • windows-1251
  • windows-1252
  • windows-1253
  • windows-1255
  • x-euc-tw
  • X-ISO-10646-UCS-4-2143
  • X-ISO-10646-UCS-4-3412
  • x-mac-cyrillic

Requires

Install

Build uchardet-enhanced

  1. $cd /tmp

  2. $hg clone https://bitbucket.org/medoc/uchardet-enhanced

  3. $cd uchardet-enhanced/libcharsetdetect

  4. $./configure

  5. $make

  6. $sudo make install

  7. $ls -la /usr/local/lib

  8. $ls -la /usr/local/include

Build cChardet

  1. $cd /tmp

  2. $git clone git://github.com/PyYoshi/cChardet.git

  3. $cd cChardet

  4. $sudo pip install or easy_install -U cython. (If your os is Ubuntu, I recommend that you do "sudo apt-get install python-dev cython")

  5. $python setup.py build

  6. $sudo python setup.py install

Example

# coding: utf8
import cchardet
msg = file(r"testdata/wikipediaJa_One_Thousand_and_One_Nights_SJIS.txt").read()
result = cchardet.detect(msg)
print(result)

Test

  • $sudo easy_install or pip install -U chardet nose

  • $nosetests --nocapture tests.py

Benchmark

see tests.TestCchardetSpeed

Sample(shift_jis):

PC Spec.:

  • CPU: Intel Core i7 860 2.8GHz

  • RAM: DDR3-1333 16GB

  • Platform: Windows 7 HP x64, Python 2.7.3 32-bit

Result:

  • chardet: 4.009999990463257s, shift_jis

  • cchardet: 0.0009999275207519531s, shift_jis

Contact

My blog

Sorry for my poor English :)