I need to check the middle part of path appear two times. example:
images hotels AND csv fares
I used bellow regex string to check It. but I couldn't find the way. please help me to continue with this?
((images|csv|files)([A-Za-z0-9\-]+).*){2}
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Thomas Ayoub
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user7327295
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here I have two urls with separating AND key – user7327295 Dec 24 '16 at 16:43
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Can you add example of input and what are you trying to achieve? – Tomáš Šíma Dec 24 '16 at 18:35
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files hotels AND csv fares AND images hotels – user7327295 Dec 24 '16 at 18:45
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This string shows three times. I only need two time appears strings. like this , – user7327295 Dec 24 '16 at 18:47
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images hotels AND csv fares – user7327295 Dec 24 '16 at 18:47
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Still not understanding you. You ideally need to provide [minimum complete example](http://stackoverflow.com/help/mcve) – Tomáš Šíma Dec 24 '16 at 18:47
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In one string can have more than two sets with separate using 'AND' word. first word in each set needs to start with images or csv or files – user7327295 Dec 24 '16 at 18:50
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Let me rephase your comment to see if I understand correctly... You are trying to match an entire string if and only if that string contains two instances of this pattern? E.g. match `"foo images hotels bar csv fares baz"` but don't match `"foo images hotels bar"` – Travis Dec 24 '16 at 19:13
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Also, what language or tool are you using this regex in? – Travis Dec 24 '16 at 19:16
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Also also, I just thought... are you trying to match the *exact same instance* twice? Or just two different instances of this general pattern? I.e. do you want to use a [backreference](http://www.regular-expressions.info/backref.html)? – Travis Dec 24 '16 at 19:17
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just two different instances of this general pattern – user7327295 Dec 24 '16 at 19:22
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Maybe all you need is [`(.*?(images|csv|files)){2}`](https://regex101.com/r/lJcjaa/1)? – Wiktor Stribiżew Dec 25 '16 at 19:50