简体   繁体   中英

regular expression for words with 8 or 7 characters

I'm looking for a regular expression that matches words with 8 or 7 characters and includes (ea). this is what I've got so far:

[\w*(ea)\w*]{7,8}

the problem is it also accepts the first 8 characters of "bbeabbbbbbb" but I dont want that.

when inside charset [] , brackets ( , ) loses its special meaning and matched literally. that's why you are getting wrong results. Try below regex.

(?=(?=(?<!\w)\w*\(ea\))[\w()]{7,8}(?:\s|$))[\w()]{7,8}

Demo in regex101.com

The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM