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145 lines
4.1 KiB
Cython
145 lines
4.1 KiB
Cython
# -*- coding: utf8 -*-
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from __future__ import unicode_literals
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import unicodedata
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from unidecode import unidecode
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import re
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import math
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TAGS = 'adj adp adv conj det noun num pdt pos pron prt punct verb'.upper().split()
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# Binary string features
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cpdef bint is_alpha(unicode string):
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return string.isalpha()
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cpdef bint is_digit(unicode string):
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return string.isdigit()
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cpdef bint is_punct(unicode string):
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for c in string:
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if not unicodedata.category(c).startswith('P'):
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return False
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else:
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return True
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cpdef bint is_space(unicode string):
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return string.isspace()
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cpdef bint is_ascii(unicode string):
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for c in string:
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if ord(c) >= 128:
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return False
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else:
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return True
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cpdef bint is_title(unicode string):
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return string.istitle()
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cpdef bint is_lower(unicode string):
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return string.islower()
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cpdef bint is_upper(unicode string):
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return string.isupper()
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TLDs = set("com|org|edu|gov|net|mil|aero|asia|biz|cat|coop|info|int|jobs|mobi|museum|"
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"name|pro|tel|travel|xxx|"
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"ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|au|aw|ax|az|ba|bb|bd|be|bf|bg|"
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"bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|"
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"co|cr|cs|cu|cv|cx|cy|cz|dd|de|dj|dk|dm|do|dz|ec|ee|eg|eh|er|es|et|eu|fi|"
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"fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|"
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"hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|"
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"km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|me|mg|mh|"
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"mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|"
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"nr|nu|nz|om|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|rs|ru|rw|sa|"
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"sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|ss|st|su|sv|sy|sz|tc|td|tf|tg|th|"
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"tj|tk|tl|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|us|uy|uz|va|vc|ve|vg|vi|vn|vu|"
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"wf|ws|ye|yt|za|zm|zw".split('|'))
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cpdef bint like_url(unicode string):
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# We're looking for things that function in text like URLs. So, valid URL
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# or not, anything they say http:// is going to be good.
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if string.startswith('http://'):
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return True
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elif string.startswith('www.') and len(string) >= 5:
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return True
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# No dots? Not URLish enough
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if string[0] == '.' or string[-1] == '.':
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return False
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# This should be a call to "in", but PyPy lacks this function?
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cdef int i
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for i in range(len(string)):
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if string[i] == '.':
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break
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else:
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return False
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tld = string.rsplit('.', 1)[1].split(':', 1)[0]
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if tld.endswith('/'):
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return True
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if tld.isalpha() and tld in TLDs:
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return True
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return False
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NUM_WORDS = set('zero one two three four five six seven eight nine ten'
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'eleven twelve thirteen fourteen fifteen sixteen seventeen'
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'eighteen nineteen twenty thirty forty fifty sixty seventy'
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'eighty ninety hundred thousand million billion trillion'
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'quadrillion gajillion bazillion'.split())
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cpdef bint like_number(unicode string):
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string = string.replace(',', '')
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string = string.replace('.', '')
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if string.isdigit():
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return True
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if string.count('/') == 1:
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num, denom = string.split('/')
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if like_number(num) and like_number(denom):
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return True
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if string in NUM_WORDS:
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return True
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return False
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cpdef unicode word_shape(unicode string):
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length = len(string)
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shape = []
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last = ""
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shape_char = ""
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seq = 0
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for c in string:
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if c.isalpha():
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if c.isupper():
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shape_char = "X"
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else:
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shape_char = "x"
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elif c.isdigit():
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shape_char = "d"
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else:
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shape_char = c
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if shape_char == last:
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seq += 1
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else:
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seq = 0
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last = shape_char
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if seq < 4:
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shape.append(shape_char)
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return ''.join(shape)
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cpdef bytes asciied(unicode string):
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cdef str stripped = unidecode(string)
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if not stripped:
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return b'???'
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return stripped.encode('ascii')
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