[英]regex to get word between two undescores
I've a line like bla_bla**_**test**_1**023
我有一行像
bla_bla**_**test**_1**023
and would like to extract the word between _
and any underscore followed by digit _digit
which is test
in the above example.并想提取
_
和任何下划线之间的单词,后跟数字_digit
,这是上面示例中的test
。
I've tried the following regex but unfortunately does not work: [^_ ]+(?=[ _\\d])
- it getting me all words before "_digit" not only the one which is before _digit
我尝试了以下正则表达式,但不幸的是不起作用:
[^_ ]+(?=[ _\\d])
- 它让我得到“_digit”之前的所有单词,而不仅仅是_digit
之前的_digit
This should work for you.这应该对你有用。 Use
Pattern
and Matcher
with look-arounds .使用
Pattern
和Matcher
进行环视。
public static void main(String[] args) {
String word= "bla_bla_test_1023";
Pattern p = Pattern.compile("(?<=_)([^_]+)(?=_\\d+)");
Matcher m = p.matcher(word);
while (m.find()) {
System.out.println(m.group());
}
}
O/P :开/关:
test
测试
[^_]*(?=_\d)
您想匹配除 _ 以外的所有内容,直到找到 _ 后跟一个数字。
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