Daniel, Thanks for your help with this.
Martin. On 10 Feb 2003 at 13:15, Daniel F. Savarese wrote: > > In message <3E47EA64.9585.FB4E4ED@localhost>, "Martin Thomas" writes: > >OK, I've attached a test case that demonstrates the problem. > > Thanks. Your original expression works just fine if you change (.)* to > (.*), even with the alternations and saved groups. However, alternations > tend to be inefficient and should be replaced with character classes > whenever possible. Contrary to my original assumption, the problem appears > to have had nothing to do with backtracking. I don't think this is > a case of "blame the regular expression" as I had initially concluded. > There are situations where a Perl regex (at least a 5.003 regex) can > match the empty string an infinite number of times. That shouldn't > happen with (.)*, but neither should there be a problem with too many > saved groups being pushed onto the stack since there is only one. > I'm going to file this away as a test case and look into it later. > > daniel > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
