90 lines
2.5 KiB
Python
90 lines
2.5 KiB
Python
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# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2011 Alex Yatskov
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import codecs
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import json
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#
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# Deinflection
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#
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class Deinflection:
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def __init__(self, term, tags=list(), rule=str()):
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self.children = list()
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self.term = term
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self.tags = tags
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self.rule = rule
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def deinflect(self, validator, rules):
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for rule, variants in rules.items():
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for variant in variants:
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tagsIn = variant['tagsIn']
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tagsOut = variant['tagsOut']
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kanaIn = variant['kanaIn']
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kanaOut = variant['kanaOut']
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for i in xrange(len(kanaIn), len(self.term) + 1):
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term = self.term[:i]
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allowed = not self.tags
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for tag in self.tags:
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if tag in tagsIn:
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allowed = True
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if allowed and term.endswith(kanaIn):
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rebase = term[:-len(kanaIn)] + kanaOut
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if validator(rebase, self.tags):
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child = Deinflection(rebase, tagsOut, rule)
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self.children.append(child)
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child.deinflect(validator, rules)
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def dump(self, depth=0):
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result = u'%s%s' % (u'\t' * depth, self.term)
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if self.rule:
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result += u' (%s)' % self.rule
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result += u'\n'
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for child in self.children:
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result += child.dump(depth + 1)
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return result
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def __str__(self):
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return self.dump()
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#
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# Deinflector
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#
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class Deinflector:
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def __init__(self, filename):
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with codecs.open(filename, 'rb', 'utf-8') as fp:
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self.rules = json.load(fp)
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def deinflect(self, term, validator=lambda term, tags: True):
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node = Deinflection(term)
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node.deinflect(validator, self.rules)
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return node
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