Stack Directory?

[Chipp Walters]

Wow, Great work Ken. Thanks a lot. Can't wait for the tutorial!

Can you tell me how fast regular expressions are?
Would you think it faster than:

function AppPath
   set itemdel to tab
   put the effective filename of this stack into tStack
   put last item of tStack into tFile
   return tFile
end AppPath

and why do you do the local tPath...is it faster for MC if you declare local
variables?

thx again,

chipp

> -----Original Message-----
> From: metacard-admin at lists.runrev.com
> [mailto:metacard-admin at lists.runrev.com]On Behalf Of Ken Ray
> Sent: Wednesday, September 11, 2002 10:03 PM
> To: metacard at lists.runrev.com
> Subject: Re: Stack Directory?
>
>
> Actually, with MC 2.4.2 and above, you can use regular expressions (yeah,
> it's the RegEx guy again... ;-) to do this:
>
> function AppPath
>   local tPath
>   get matchText(the effective fileName of this stack,"(.*\/)",tPath)
>   return tPath
> end AppPath
>
> For those of you trying to pick up RegEx, the code here:
>
>   (.*\/)
>
> Means this:
>
>   .* => Match all characters starting from the first character of
> the string
> (the effective filename of this stack)...
>
>   \/  => ... until you match a '/' (the '\' is to 'escape' the forward
> slash), and then keep going until you match the last '/' in the string.
>
>   ( )  => ... and return what you found in the first variable supplied to
> the matchText function (tPath).
>
> The key here is that .* is a "greedy match", which means it will match
> everything until the *last* match of the forward slash. If you use .*?, it
> will only go to the first match of the forward slash (which would
> return the
> volume the stack was on).
>
> Examples:
>
> If "the effective filename of this stack" is
> "C:/Development/MyStuff/MyProject.mc", then:
>
> using (.*\/) would return:
>
>    C:/Development/MyStuff/
>
> and using (.*?\/) would return:
>
>    C:/
>
> Yes, yes, I know... I'm still working on putting together a RegEx
> tutorial... :-)
>
> Ken Ray
> Sons of Thunder Software
> Email: kray at sonsothunder.com
> Web Site: http://www.sonsothunder.com/
>
>
> ----- Original Message -----
> From: "Dominique" <mcdomi at free.fr>
> To: <metacard at lists.runrev.com>
> Sent: Wednesday, September 11, 2002 3:00 PM
> Subject: Re: Stack Directory?
>
>
> > >  function AppPath
> > >    put the filename of <mainstackName> into tPath
> > >    set the delimiter to "/"
> > >    delete last item of tPath
> > >    return tPath &"/"
> > >  end AppPath
> >
> > Beautiful :-)
> >
> >
> > --
> > Regards,
> > (-8 Dominique
> > _______________________________________________
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