common.py
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'''
Created on Nov 7, 2013
@author: mlenart
'''
import codecs
class Lemma(object):
def __init__(self, cutLength, suffixToAdd):
self.cutLength = cutLength
self.suffixToAdd = suffixToAdd
class Interpretation(object):
def __init__(self, orth, base, tagnum, namenum, encoder):
assert type(orth) == unicode
assert type(base) == unicode
root = u''
for o, b in zip(orth, base):
if o == b:
root += o
else:
break
cutLength = len(encoder.encodeWord(orth)) - len(encoder.encodeWord(root))
self.lemma = Lemma(
cutLength=cutLength,
suffixToAdd=encoder.encodeWord(base[len(root):], lowercase=False))
self.tagnum = tagnum
self.namenum = namenum
def getSortKey(self):
return (self.lemma.cutLength, tuple(self.lemma.suffixToAdd), self.tagnum, self.namenum)
def __eq__(self, other):
if isinstance(other, Interpretation):
return self.getSortKey() == other.getSortKey()
else:
return False
def __hash__(self):
return hash(self.getSortKey())
class Tagset(object):
TAGS = 1
NAMES = 2
SEP = '\t'
def __init__(self, filename, encoding='utf8'):
self.tag2tagnum = {}
self.name2namenum = {}
self._doInit(filename, encoding)
print self.tag2tagnum
print self.name2namenum
def _doInit(self, filename, encoding):
addingTo = None
with codecs.open(filename, 'r', encoding) as f:
for line in f:
line = line.strip('\n')
if line == u'[TAGS]':
addingTo = Tagset.TAGS
elif line == u'[NAMES]':
addingTo = Tagset.NAMES
elif line and not line.startswith(u'#'):
assert addingTo in [Tagset.TAGS, Tagset.NAMES]
res = {Tagset.TAGS: self.tag2tagnum,
Tagset.NAMES: self.name2namenum}[addingTo]
tagNum = line.split(Tagset.SEP)[0]
tag = line.split(Tagset.SEP)[1]
assert tag not in res
res[tag] = int(tagNum)