collate/__init__.py

   1 import collate.errors
   2 import collate._locale
   3
   4 try:
   5     import collate.codepoint as default
   6 except ImportError:
   7     pass
   8 try:
   9     import collate.syslocale as default
  10 except ImportError:
  11     pass
  12 try:
  13     import collate.uca as default
  14 except ImportError:
  15     pass
  16 try:
  17     import collate.icu as default
  18 except ImportError:
  19     pass
  20
  21 collator = None
  22
  23 def set_default(backend=None, locale=None, encoding=None):
  24     global collator
  25     global default
  26
  27     if backend is None:
  28         backend = default
  29     locales = collate._locale.localelist(locale)
  30     c = None
  31     for locale in locales:
  32         locale, encoding_ = collate._locale.getpair(locale, encoding)
  33         try:
  34             c = backend.Collator(locale, encoding_)
  35         except collate.errors.InvalidLocaleError:
  36             pass
  37     if c is not None:
  38         collator = c
  39         default = backend
  40
  41 def key(string):
  42     return collator.key(string)
  43
  44 def cmp(a, b):
  45     return collator.cmp(a, b)
  46
  47 set_default()