CODEWITHSUNDEEP
regex
AngeloC
AngeloC

Reputation: 3523

What is a regular expression to check if line contains only one word?

I would like to use regular express to check lines that contains only one word

Say:

'hello'
'hello World'

I tried \w+, but it returns 'hello world' too, any suggestions?

Thanks,

Upvotes: 2

Views: 3768

Answers (2)

Chirag Agrawal
Chirag Agrawal

Reputation: 353

The accepted answer is correct. However, if someone wants to allow special characters in the word too, then ^(\S+)$ would work.

Upvotes: 0

Asunez
Asunez

Reputation: 2347

You need to add anchors for beginning and end of string.

Try this: ^(\w+)$

You can try a live demo here. Notice the multiline parameter, depending on your language you either append /m to the regex or pass this as a parameter.

It will match lines with only one word. The other way to do this is to add "lookbehind" and "lookahead", however, this way is easier.

Upvotes: 4

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