def is_chinese(uchar):
"""判断一个unicode是否是汉字"""
if uchar >= u'\u4e00' and uchar <= u'\u9fa5':
return True
else:
return False
def is_number(uchar):
"""判断一个unicode是否是半角数字"""
if uchar >= u'\u0030' and uchar <= u'\u0039':
return True
else:
return False
def is_Qnumber(uchar):
"""判断一个unicode是否是全角数字"""
if uchar >= u'\uff10' and uchar <= u'\uff19':
return True
else:
return False
def is_alphabet(uchar):
"""判断一个unicode是否是半角英文字母"""
if (uchar >= u'\u0041' and uchar <= u'\u005a') or (uchar >= u'\u0061' and uchar <= u'\u007a'):
return True
else:
return False
def is_Qalphabet(uchar):
"""判断一个unicode是否是全角英文字母"""
if (uchar >= u'\uff21' and uchar <= u'\uff3a') or (uchar >= u'\uff41' and uchar <= u'\uff5a'):
return True
else:
return False
def is_other(uchar):
"""判断是否非汉字，数字和英文字符"""
if not (is_chinese(uchar) or is_number(uchar) or is_alphabet(uchar)):
return True
else:
return False
def B2Q(uchar):
"""单个字符 半角转全角"""
inside_code = ord(uchar)
if inside_code < 0x0020 or inside_code > 0x7e: # 不是半角字符就返回原来的字符
return uchar
if inside_code == 0x0020: # 除了空格其他的全角半角的公式为: 半角 = 全角 - 0xfee0
inside_code = 0x3000
else:
inside_code += 0xfee0
return chr(inside_code)
def Q2B(uchar):
"""单个字符 全角转半角"""
inside_code = ord(uchar)
if inside_code == 0x3000:
inside_code = 0x0020
else:
inside_code -= 0xfee0
if inside_code < 0x0020 or inside_code > 0x7e: # 转完之后不是半角字符返回原来的字符
return uchar
return chr(inside_code)
def stringQ2B(ustring):
"""把字符串全角转半角"""
return "".join([Q2B(uchar) for uchar in ustring])
def stringB2Q(ustring):
"""把字符串半角转全角"""
return "".join([B2Q(uchar) for uchar in ustring])
