Reply To: Repeat +?etc in lookaheads and lookbehinds

November 24, 2009 at 1:33 am #50875

Member

Hello

Are you sure about the regular expression ? I think it is (?<=\w)(?=\w+[[:punct:]]+$)

In a lookbehind, the string must have the same length, i.e. the same number of characters. You can't use + * or ?

ex : (?<=figs?)\d is impossible (matche a digit preceded by fig or figs)

There is no limitation in a lookahead.

This article was last modified on November 24, 2009

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