On Thu, Feb 19, 2004 at 10:46:33PM -0000, Rob Dixon wrote: > <[EMAIL PROTECTED]> wrote: > > > > The Advantage is you get to use the switch statement. The disadvantage is > > your code will run extraordinarily slow because the Switch module uses a run time > > Filter. In short: isn't an is-elsif-else statement enough?? > > Are you saying that 'if-elsif-else' is a compile-time filter? It isn't. > So I guess 'if-elsif-else' runs extraordinarily slow too. > > AFAIK Switch allows coding that runs no more slowly than 'if', and lets > you express some solutions much more neatly.
The problem is that Switch.pm is a source filter, which is effectively an extra level of processing before compilation. Personally, I wouldn't use a source filter for anything I cared about. The docs for Switch state: There are undoubtedly serious bugs lurking somewhere in code this funky :-) and also Due to the heuristic nature of Switch.pm's source parsing, the presence of regexes specified with raw "?...?" delimiters may cause mysterious errors. -- Paul Johnson - [EMAIL PROTECTED] http://www.pjcj.net -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
