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| The stupid question is the question not asked | |
| PerlMonks |
Re^2: REgular expression to check the string that allows "a","b" and "c" to occur only once in any order.by parv (Parson) |
| on Dec 12, 2007 at 20:42 UTC ( [id://656709]=note: print w/replies, xml ) | Need Help?? |
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That is simple! A problem might arise if the desired letters could be part of a bigger string. Lacking any comments by isha on the specification :( so far, your solution is just as good.
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