Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/xdg/Locale.py: 32%

1""" 

2Helper Module for Locale settings 

3 

4This module is based on a ROX module (LGPL): 

5 

6http://cvs.sourceforge.net/viewcvs.py/rox/ROX-Lib2/python/rox/i18n.py?rev=1.3&view=log 

7""" 

8 

9import os 

10from locale import normalize 

11 

12regex = r"(\[([a-zA-Z]+)(_[a-zA-Z]+)?(\.[a-zA-Z0-9-]+)?(@[a-zA-Z]+)?\])?" 

13 

14def _expand_lang(locale): 

15 locale = normalize(locale) 

16 COMPONENT_CODESET = 1 << 0 

17 COMPONENT_MODIFIER = 1 << 1 

18 COMPONENT_TERRITORY = 1 << 2 

19 # split up the locale into its base components 

20 mask = 0 

21 pos = locale.find('@') 

22 if pos >= 0: 

23 modifier = locale[pos:] 

24 locale = locale[:pos] 

25 mask |= COMPONENT_MODIFIER 

26 else: 

27 modifier = '' 

28 pos = locale.find('.') 

29 codeset = '' 

30 if pos >= 0: 

31 locale = locale[:pos] 

32 pos = locale.find('_') 

33 if pos >= 0: 

34 territory = locale[pos:] 

35 locale = locale[:pos] 

36 mask |= COMPONENT_TERRITORY 

37 else: 

38 territory = '' 

39 language = locale 

40 ret = [] 

41 for i in range(mask+1): 

42 if not (i & ~mask): # if all components for this combo exist ... 

43 val = language 

44 if i & COMPONENT_TERRITORY: val += territory 

45 if i & COMPONENT_CODESET: val += codeset 

46 if i & COMPONENT_MODIFIER: val += modifier 

47 ret.append(val) 

48 ret.reverse() 

49 return ret 

50 

51def expand_languages(languages=None): 

52 # Get some reasonable defaults for arguments that were not supplied 

53 if languages is None: 

54 languages = [] 

55 for envar in ('LANGUAGE', 'LC_ALL', 'LC_MESSAGES', 'LANG'): 

56 val = os.environ.get(envar) 

57 if val: 

58 languages = val.split(':') 

59 break 

60 #if 'C' not in languages: 

61 # languages.append('C') 

62 

63 # now normalize and expand the languages 

64 nelangs = [] 

65 for lang in languages: 

66 for nelang in _expand_lang(lang): 

67 if nelang not in nelangs: 

68 nelangs.append(nelang) 

69 return nelangs 

70 

71def update(language=None): 

72 global langs 

73 if language: 

74 langs = expand_languages([language]) 

75 else: 

76 langs = expand_languages() 

77 

78langs = [] 

79update()