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10-25-2008
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Perl REGEX
Hi,
Can anyone help me to find regular expression for the following in Perl? "The string can only contain lower case letters (a-z) and no more than one of any letter." For example: "table" is accepted, whether "dude" is not. I have coded like this: $str = "table"; if ($str =~ m/\b([a-z])[^\1]\b/) { ... } But it does not work  . Any helps would be appreciated. Thanks. |
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