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#coding: UTF8
"""
wchartype
Retrieves character types of double-byte (full-width) characters.
"""
__license__ = "MIT"
__version__ = "0.1"
__author__ = "Ryan Ginstrom"
__description__ = "Retrieves character types of double-byte characters."
# 0x3000 is ideographic space (i.e. double-byte space)
IDEOGRAPHIC_SPACE = 0x3000
def is_asian(char):
"""Is the character Asian?
>>> is_asian('a')
False
>>> is_asian(u'\u65e5')
True
>>> is_asian(unichr(0x3000))
False
"""
return ord(char) > IDEOGRAPHIC_SPACE
def is_full_width(char):
"""
Is the character full width?
It will be full width if it's Asian or an ideographic space.
>>> is_full_width('a')
False
>>> is_full_width(u'\u65e5')
True
>>> is_full_width(unichr(0x3000))
True
"""
return is_asian(char) or ord(char) == IDEOGRAPHIC_SPACE
def is_kanji(char):
"""
Returns whether char is kanji (or Chinese)
>>> is_kanji(u'\u4E40')
True
>>> is_kanji(u"a")
False
"""
code = ord(char)
return 0x4E00 <= code <= 0x9FFF
is_hanzi = is_kanji
def is_hiragana(char):
"""
Returns whether char is hiragana
>>> is_hiragana(u'a')
False
>>> is_hiragana(u'\u308F') # わ
True
>>> is_hiragana(u'\u30EA') # リ
False
"""
code = ord(char)
return 0x3041 <= code <= 0x309F
def is_katakana(char):
"""
Returns whether char is katakana
>>> is_katakana(u'$')
False
>>> is_katakana(u'\u30EA') # リ
True
>>> is_katakana(u'\u308F') # わ
False
"""
code = ord(char)
return 0x30A0 <= code <= 0x30FF
def is_half_katakana(char):
"""
Returns whether char is half-width katakana
>>> is_half_katakana(u'$')
False
>>> is_half_katakana(u'\uFF91') # ﾑ
True
>>> is_half_katakana(u'\u30EA') # リ
False
"""
code = ord(char)
return 0xFF65 <= code <= 0xFF9F
def is_hangul(char):
"""
Returns whether char is hangul
>>> is_hangul(u'1')
False
# halfwidth hangul
>>> is_hangul(u'\uFFB8') # HALFWIDTH HANGUL LETTER CIEUC
True
# fullwidth hangul
>>> is_hangul(u'\uB973') # 륳
True
>>> is_hangul(u'\u30EA') # リ
False
"""
code = ord(char)
# halfwidth hangul
if 0xFFA0 <= code <= 0xFFDC:
return True
# fullwidth hangul
return 0xAC00 <= code <= 0xD7A3
def is_full_punct(char):
"""
Returns whether char is full-width punctuation
>>> is_full_punct(u'$')
False
>>> is_full_punct(u'\uFF05') # ％
True
>>> is_full_punct(u'\uFF1E') # ＞
True
>>> is_full_punct(u'\uFF3D') # ］
True
>>> is_full_punct(u'\uFF5B') # ｛
True
>>> is_full_punct(u'\u30EA') # リ
False
"""
code = ord(char)
return any(x <= code <= y
for x, y in [(0xFF01, 0xFF0F),
(0xFF1A, 0xFF20),
(0xFF3B, 0xFF40),
(0xFF5B, 0xFF64)])
def is_full_digit(char):
"""
Returns whether char is full-width digit
>>> is_full_digit(u'1')
False
>>> is_full_digit(u'\uFF15') # ５
True
>>> is_full_digit(u'\uFF05') # ％
False
"""
code = ord(char)
return 0xFF10 <= code <= 0xFF19
def is_full_letter(char):
"""
Returns whether char is full-width letter.
This differs from the built-in isalpha method for strings,
because isalpha will return True for CJK characters.
>>> is_full_letter(u'\u308F') # hiragana wa (わ)
False
>>> u'\u308F'.isalpha() # hiragana wa (わ)
True
>>> is_full_letter(u'A')
False
>>> is_full_letter(u'\uFF31') # Ｑ
True
>>> is_full_letter(u'\uFF4A') # ｊ
True
>>> is_full_letter(u'\u30EA') # リ
False
>>> is_full_letter(u'\uFF15') # ５
False
"""
code = ord(char)
if 0xFF21 <= code <= 0xFF3A:
return True
if 0xFF41 <= code <= 0xFF5A:
return True
return False
def _test():
"""Run doc tests"""
import doctest
doctest.testmod()
if __name__ == "__main__":
_test()
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