>我试图找出一个句子是否包含短语"go * to",例如"go over to"、"go up to"等。 我正在使用Textblob,我知道我可以在下面使用:
search_go_to = set(["go", "to"])
go_to_blob = TextBlob(var)
matches = [str(s) for s in go_to_blob.sentences if search_go_to & set(s.words)]
print(matches)
但这也会返回诸如"去那边把这个带给他"之类的句子,这是我不想要的。有人知道我怎么能做像text.find("go * to")这样的事情吗?
尝试使用:
for match in re.finditer(r"gos+w+s+to", text, re.IGNORECASE):
使用 generator expressions
>>> search_go_to = set(["go", "to"])
>>> m = ' .*? '.join(x for x in search_go_to)
>>> words = set(["go over to", "go up to", "foo bar"])
>>> matches = [s for s in words if re.search(m, s)]
>>> print(matches)
['go over to', 'go up to']
试试这个
text = "something go over to something"
if re.search("gos+?S+?s+?to",text):
print "found"
else:
print "not found"
正则表达式:-
s is for any space
S is for any non space including special characters
+? is for no greedy approach (not required in OP's question)
所以re.search("gos+?S+?s+?to",text)
会匹配"something go W#$%^^$ to something"
当然这也"something go over to something"
这行得通吗?
import re
search_go_to = re.compile("^go.*to$")
go_to_blob = TextBlob(var)
matches = [str(s) for s in go_to_blob.sentences if search_go_to.match(str(s))]
print(matches)
正则表达式的解释:
^ beginning of line/string
go literal matching of "go"
.* zero or more characters of any kind
to literal matching of "to"
$ end of line/string
如果不希望"将"匹配,请在to
之前和go
之后插入\b
(单词边界)。