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Re: /(\w|(?{++$n}))*/

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Jeff 'japhy' Pinyan
October 29, 2003 13:25
Re: /(\w|(?{++$n}))*/
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On Oct 29, Mark Jason Dominus said:

>> On Oct 29, Jeff 'japhy' Pinyan said:
>> And somewhat related, why doesn't
>>   "abc" =~ /(b?|[ac])*/;
>> match 'abc'?  It matches '' (the zero b's at the beginning of the string).
>Why should it match 'abc'?  The first alternative alternative b? is
>taken before the seoncd alternative [ac]* .
>The * operator has special code in it to prevent it from going into an
>infinite loop when its argument has matched an empty string, so the *
>loop is exited after the first pass.

Hrm.  I guess I was confusing that with /\w??/g.

Jeff "japhy" Pinyan
RPI Acacia brother #734
<stu> what does y/// stand for?  <tenderpuss> why, yansliterate of course.
[  I'm looking for programming work.  If you like my work, let me know.  ]

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