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[REBOL] Re: DOing a script from REBOL.org

From: rebolek:gmai:l at: 31-Oct-2006 11:50

Hm, I never knew I would create so much problems ;) Sunanda wrote: ** Sadly, texture-lab.r is an exception: it checks its own REBOL header. That means it is assuming it is running as a Do %name. So it fails as it can't find header/version. Yes it checks it's header to get version number and help texts from USAGE field, but I've got lot of problems with this approach so I'm now uploading new version that does not check for its header. Rebolek On 10/31/06, SunandaDH-aol.com <SunandaDH-aol.com> wrote:
> > Hidden in the Library Recent Changes thread, Carl Read asked: > > > Shouldn't this just, you know, work... > > do > > http://www.rebol.org/cgi-bin/cgiwrap/rebol/view-script.r?script=texture-lab.r > > Gregg suggested using the "plain text" version of the script in the > Library: > > > do > > http://www.rebol.org/cgi-bin/cgiwrap/rebol/download-a-script.r?script-name=texture-lab.r > > And Anton diagnosed REBOL's inability to parse the script from the webpage > as > a documentation and/or coding problem in REBOL -- an embedded script needs > to > start with a newline. > > http://www.rebol.org/cgi-bin/cgiwrap/rebol/ml-display-message.r?m=rmlWTJC > > The Library now emits the HTML with a newline before the script header. > > This means that many scripts are DO-able from their Library webpage. > > Thanks to Carl and Gregg and Anton for raising and fixing the problem. > > **** > > Unfortunately, _many_ scripts are Do-able, but not the one in question. > > texture-lab.r contains greater-than and less-than signs. These are escaped > to > character entities in the HTML page, and that creates a syntax error. > > Gregg's solution still stands: use the version intended for execution > rather > than the one prettied up for display. > > Other alternatives include: > > -- download the script and run it locally. > -- download the whole Library, and run the one script locally: > http://www.rebol.org/cgi-bin/cgiwrap/rebol/download-librarian.r > > Those first two suggestions work even when the library isn't available. > > -- Use the Library Data Services interface. Normally (see below for > exception > **) this best as it allows you to specify which version of a script you > want > to run -- the Library may have multiple versions of a script, and the most > recent one may not be the one you want. > > do http://www.rebol.org/library/public/lds-local.r > res: lds/send-server 'get-archive-version ["texture-lab.r/1"] > do decompress res/data/script > > Normally, this would run Version 1 of texture-lab.r > If there were other verisons, you could check them here: > > http://www.rebol.org/cgi-bin/cgiwrap/rebol/script-history.r?script-name=textur > e-lab.r > > And that would work with most scripts in the Library. > > ** Sadly, texture-lab.r is an exception: it checks its own REBOL header. > That > means it is assuming it is running as a Do %name. So it fails as it can't > find header/version. > > You could always save it to a temporary file and do it from there. > > **** > > Who said the X-Internet was easy!? > > Moral of the story: listen to Gregg. > > Sunanda. > -- > To unsubscribe from the list, just send an email to > lists at rebol.com with unsubscribe as the subject. >
-- / Boleslav Brezovsky http://krutek.info \