match pattern

[alan6886]

I have a string "hello" and "hellollo", and I want to find out either "llo" pattern or "llollo" pattern. But the regular express of (llo)+ doesn't work for me.  

Many thanks!

[EndigitBryan]

I think it works if you change the () to [] brackets.

[Mancho00]

Match pattern uses a limited set of regular expressions terms.  Try Match Regular Expression

 EndigitBryan, the bracket will not match a pattern, but any of the letters in the set

e.g. 'l' in help, or 'oo' in hook

[EndigitBryan]

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@Mancho00 wrote:

 EndigitBryan, the bracket will not match a pattern, but any of the letters in the set

e.g. 'l' in help, or 'oo' in hook

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You are right!  I should have thought about it longer.

[wiebe@CARYA]

Of course "(llo)+" will also match "llollollo", "llollollollo", etc...

If you want to match only "llo" and "llollo", you'll need:

"(llo)|(llollo)", "(llo)()|(llo)", "(llo)(llo)?", "(llo){1,2}" or "(llo)\1?".