Python checks whether unicode is a Chinese character, number, English, or other character,

Python checks whether unicode is a Chinese character, number, English, or other character,

The following tool determines whether unicode is a Chinese character, number, English, or other character. Full-width to half-width. Unicode string normalization.   #! /Usr/bin/env python #-*-Coding: GBK -*-   "Chinese character processing tool: Determines whether unicode is a Chinese character, number, English, or other character. Full-width to half-width. """ Def is_chinese (uchar ):  "Determining whether a unicode character is a Chinese character """  If uchar> = u'u4e00' and uchar <= u'u9fa5 ':  Return True  Else:  Return False   Def is_number (uchar ):  "Determining whether a unicode is a number """  If uchar> = u'u0030' and uchar <= u'u0039 ':  Return True  Else:  Return False   Def is_alphabet (uchar ):  "Determining whether a unicode character is an English letter """  If (uchar> = u'u0041 'and uchar <= u'u005a') or (uchar> = u'u0061 'and uchar <= u'u007a '):  Return True  Else:  Return False   Def is_other (uchar ):  "Judge whether it is not a Chinese character, number or English character """  If not (is_chinese (uchar) or is_number (uchar) or is_alphabet (uchar )):  Return True  Else:  Return False   Def B2Q (uchar ):  "Halfwidth to fullwidth """  Inside_code = ord (uchar)  If inside_code <0x0020 or inside_code> 0x7e:# Returns the original character if it is not a halfwidth character  Return uchar  If inside_code = 0x0020: # except for spaces, the formula for the full-width half-width is: half-width = full-width-0xfee0.  Inside_code = 0x3000  Else:  Inside_code + = 0xfee0  Return unichr (inside_code)   Def Q2B (uchar ):  "Turn all corners to half corners """  Inside_code = ord (uchar)  If inside_code = 0x3000:  Inside_code = 0x0020  Else:  Inside_code-= 0xfee0  If inside_code <0x0020 or inside_code> 0x7e:# The original character is returned after the conversion is not a halfwidth character  Return uchar  Return unichr (inside_code)   Def stringQ2B (ustring ):  "Turn full-width character strings to half-width """  Return "". join ([Q2B (uchar) for uchar in ustring])   Def uniform (ustring ):  "Format the string to complete full-width, half-width, and lowercase conversion """  Return stringQ2B (ustring). lower ()   Def string2List (ustring ):  "Separate ustring from Chinese characters, letters, and numbers """  RetList = []  Utmp = []  For uchar in ustring:  If is_other (uchar ):  If len (utmp) = 0:  Continue  Else:  RetList. append ("". join (utmp ))  Utmp = []  Else:  Utmp. append (uchar)  If len (utmp )! = 0:  RetList. append ("". join (utmp ))  Return retList   If _ name __= = "_ main __":  # Test Q2B and B2Q  For I in range (0x0020, 0x007F ):  Print Q2B (B2Q (unichr (I), B2Q (unichr (I ))    # Test uniform  Ustring = u'high frequency A' of Chinese name'  Ustring = uniform (ustring)  Ret = string2List (ustring)  Print ret