90 lines
2.2 KiB
Python
90 lines
2.2 KiB
Python
# -*- coding: utf-8 -*-
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try:
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unicode(0)
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except NameError:
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# py3
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unicode = str
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unichr = chr
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class Syllable(object):
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"""Hangul syllable interface"""
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MIN = ord(u'가')
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MAX = ord(u'힣')
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def __init__(self, char=None, code=None):
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if char is None and code is None:
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raise TypeError('__init__ takes char or code as a keyword argument (not given)')
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if char is not None and code is not None:
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raise TypeError('__init__ takes char or code as a keyword argument (both given)')
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if char:
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code = ord(char)
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if not self.MIN <= code <= self.MAX:
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raise TypeError('__init__ expected Hangul syllable but {0} not in [{1}..{2}]'.format(code, self.MIN, self.MAX))
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self.code = code
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@property
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def index(self):
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return self.code - self.MIN
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@property
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def initial(self):
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return self.index // 588
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@property
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def vowel(self):
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return (self.index // 28) % 21
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@property
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def final(self):
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return self.index % 28
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@property
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def char(self):
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return unichr(self.code)
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def __unicode__(self):
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return self.char
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def __repr__(self):
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return u'''<Syllable({}({}),{}({}),{}({}),{}({}))>'''.format(
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self.code, self.char, self.initial, u'', self.vowel, u'', self.final, u'')
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class Transliter(object):
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"""General transliting interface"""
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def __init__(self, rule):
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self.rule = rule
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def translit(self, text):
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"""Translit text to romanized text
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:param text: Unicode string or unicode character iterator
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"""
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result = []
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pre = None, None
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now = None, None
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for c in text:
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try:
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post = c, Syllable(c)
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except TypeError:
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post = c, None
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if now[0] is not None:
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out = self.rule(now, pre=pre, post=post)
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if out is not None:
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result.append(out)
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pre = now
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now = post
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if now is not None:
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out = self.rule(now, pre=pre, post=(None, None))
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if out is not None:
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result.append(out)
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return u''.join(result)
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