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.icu as default
  14 except ImportError:
  15     pass
  16
  17 collator = None
  18
  19 def set_default(backend=None, locale=None, encoding=None):
  20     global collator
  21     global default
  22
  23     if backend is None:
  24         backend = default
  25     locales = collate._locale.localelist(locale)
  26     c = None
  27     for locale in locales:
  28         locale, encoding_ = collate._locale.getpair(locale, encoding)
  29         try:
  30             c = backend.Collator(locale, encoding_)
  31         except collate.errors.InvalidLocaleError:
  32             pass
  33         else:
  34             break
  35     if c is not None:
  36         collator = c
  37         default = backend
  38
  39 def key(string):
  40     return collator.key(string)
  41
  42 def cmp(a, b):
  43     return collator.cmp(a, b)
  44
  45 set_default()