python 之 求英语单词复数的 一种实现方式

舒畅

#!/usr/bin/evn python
import re;
def GetMatchAndApplyFuncs(strPattern, strSearch, strReplace):
def MatchRule(strWord):
return re.search(strPattern, strWord);
def ApplyRule(strWord):
return re.sub(strSearch, strReplace, strWord);
return (MatchRule, ApplyRule);
g_tlPattern = (
('[sxz]$',           '$',  'es'),
('[^aeioudgkprt]h$', '$',  'es'),
('(qu|[^aeiou])y$',  'y$', 'ies'),
('$',                '$',  's')  
);
g_lsRules = [GetMatchAndApplyFuncs(strPattern, strSearch, strReplace) for (strPattern, strSearch, strReplace) in g_tlPattern];
def GetPlural(strWord):
if not strWord:
return "";
for fnMatch, fnApply in g_lsRules:
if fnMatch(strWord):
return fnApply(strWord);
if "__main__" == __name__:
strVal = "exhs";
strPlural = GetPlural(strVal);
print("%s plural ==> %s" %(strVal, strPlural));