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8144
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1 from i18n import _
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2 import re, error
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3
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4 class sortdict(dict):
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5 'a simple append-only sorted dictionary'
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6 def __init__(self, data=None):
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7 self._list = []
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8 if data:
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9 if hasattr(data, '_list'):
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10 self._list = list(data._list)
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11 self.update(data)
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12 def copy(self):
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13 return sortdict(self)
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14 def __setitem__(self, key, val):
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15 if key in self:
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16 self._list.remove(key)
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17 self._list.append(key)
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18 dict.__setitem__(self, key, val)
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19 def __iter__(self):
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20 return self._list.__iter__()
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21 def update(self, src):
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22 for k in src:
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23 self[k] = src[k]
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24 def items(self):
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25 return [(k,self[k]) for k in self._list]
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26
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27 class config:
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28 def __init__(self, data=None):
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29 self._data = {}
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30 if data:
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31 for k in data._data:
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32 self._data[k] = data[k].copy()
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33 def copy(self):
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34 return config(self)
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35 def __contains__(self, section):
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36 return section in self._data
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37 def update(self, src, sections=None):
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38 if not sections:
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39 sections = src.sections()
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40 for s in sections:
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41 if s not in src:
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42 continue
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43 if s not in self:
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44 self._data[s] = sortdict()
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45 for k in src._data[s]:
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46 self._data[s][k] = src._data[s][k]
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47 def get(self, section, item, default=None):
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48 return self._data.get(section, {}).get(item, (default, ""))[0]
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49 def getsource(self, section, item):
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50 return self._data.get(section, {}).get(item, (None, ""))[1]
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51 def sections(self):
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52 return sorted(self._data.keys())
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53 def items(self, section):
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54 return [(k, v[0]) for k,v in self._data.get(section, {}).items()]
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55 def set(self, section, item, value, source=""):
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56 if section not in self:
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57 self._data[section] = sortdict()
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58 self._data[section][item] = (value, source)
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59
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8180
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60 def read(self, path, fp=None):
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8144
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61 sectionre = re.compile(r'\[([^\[]+)\]')
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62 itemre = re.compile(r'([^=\s]+)\s*=\s*(.*)')
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63 contre = re.compile(r'\s+(\S.*)')
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64 emptyre = re.compile(r'(;|#|\s*$)')
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65 section = ""
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66 item = None
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67 line = 0
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68 cont = 0
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8180
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69
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70 if not fp:
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71 fp = open(path)
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72
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8144
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73 for l in fp:
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74 line += 1
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75 if cont:
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76 m = contre.match(l)
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77 if m:
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78 v = self.get(section, item) + "\n" + m.group(1)
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79 self.set(section, item, v, "%s:%d" % (path, line))
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80 continue
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81 item = None
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82 if emptyre.match(l):
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83 continue
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84 m = sectionre.match(l)
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85 if m:
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86 section = m.group(1)
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87 if section not in self:
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88 self._data[section] = sortdict()
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89 continue
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90 m = itemre.match(l)
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91 if m:
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92 item = m.group(1)
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93 self.set(section, item, m.group(2), "%s:%d" % (path, line))
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94 cont = 1
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95 continue
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96 raise error.ConfigError(_('config error at %s:%d: \'%s\'')
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97 % (path, line, l.rstrip()))
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