[\\\&]? matches zero or one characters & or \... \& is two characters long...

maybe you want [\\\&]{0,2}

Update Thinking about it... if you are trying to match \& only.. and not &\ \\ or && then you probably really want... (?:\\&)? which will match the string \& 0 or 1 times, and not capture it (?:)

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In reply to Re: Regex confusion by suaveant
in thread Regex confusion by neilwatson

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