Regex match one of two words
I have an input that can have only 2 values apple or banana. What regular expression can I use to ensure that either of the two words was submitted?
In what language/environment is this regex being implemented? Regex seems like unnecessary overhead in many situations.
W
Wiktor Stribiżew
This will do:
/^(apple|banana)$/
to exclude from captured strings (e.g. $1,$2):
(?:apple|banana)
Or, if you use a standalone pattern:
apple|banana
s
smoak
There are different regex engines but I think most of them will work with this:
apple|banana
If you plan to put more in your regex, you'll need to put parentheses around your words, like this:
(apple|banana).
but how to make it case insensitive?
That's set with the
re.IGNORECASE flag. E.g.: re.compile("(apple|banana)", re.IGNORECASE)
Follow WeChat
Success story sharing
Want to stay one step ahead of the latest teleworks?
Subscribe Now相似问题
- Regular Expression for alphanumeric and underscores
- How do you access the matched groups in a JavaScript regular expression?
- How to match, but not capture, part of a regex?
- Check whether a string matches a regex in JS
- How can I match "anything up until this sequence of characters" in a regular expression?
- \d less efficient than [0-9]
(?:apple|banna)will match either, but will not add them to the list of captured strings (eg$1,$2..$N).