CODEWITHSUNDEEP
phpregexwhitespace
Alex Emilov
Alex Emilov

Reputation: 1271

regex remove whitespaces and match exact words

I'm don't know regex really well, so can someone give me example how to fix this regex http://rubular.com/r/UdzYMJc9iE:

/\b([stack over flow]+)+\b/

not to match whitespaces and to match only exact words (stack matches ac as word, I want to match only stack), tia.

I want when we have 'lorem etiam nam' to match only these exact 3 words from the regex, without spaces.

I tried using \s, \S, /x, but there was no result..

Upvotes: 1

Views: 1076

Answers (3)

Neikos
Neikos

Reputation: 1980

I use this website if I need some help with RegEx: http://www.txt2re.com/

It is really useful as I don't need RegEx that often. And it is perfect for the occasional use.

To check the expression, and to refine it I then use http://www.gskinner.com/RegExr/ also a very good tool.

And I think you would want something like: 

(word|second|third)+

Upvotes: 1

Martin Peters
Martin Peters

Reputation: 406

If you want to match all words, not any in particular, \b(\w+)+\b should work.

Upvotes: 1

mario
mario

Reputation: 145512

If you only want to match three alternatives, use the | syntax, and group them into normal parenthesis:

 /\b(stack|over|flow)+\b/

Not sure about the + or what exactly you wanted to match.

Upvotes: 2

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