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From: Bruce Stephens <bruce.stephens@messagingdirect.com>
To: sourcenav <sourcenav@sources.redhat.com>
Subject: Re: Getting started with tcl
Date: Thu, 03 Aug 2000 09:40:00 -0000	[thread overview]
Message-ID: <vbu2d2cn89.fsf@erwin.isode.com> (raw)
In-Reply-To: <00e401bffd66$eca2b180$4500a8c0@thomasnb>

Thomas Heller <thomas.heller@ion-tof.com> writes:

> I'm trying to understand how SN starts 'make'.
> Since I'm an absolute beginner to tcl, can
> someone please explain the following line
> (from share/gui/multimake.tcl, method ExecMake):
> 
>   set ret [catch {@@set make_fd [@@open "| $make_cmd" r]} msg]
> 
> I can decipher most of it, but what do all the @'s mean?
> Is this standard tcl? I did not find something like
> this in the Ousterhout book...

Normally it would mean nothing: @@set would simply refer to a command
called "@@set".  However, the ChangeLog in itcl suggests that things
have been changed so that @@ means the same as ::.  

So try thinking of it in those terms.  Ousterhout's book is
unfortunately too old to cover namespaces; however, the namespace(n)
manpage describes it.  Anyway, namespaces work sufficiently obviously
that they shouldn't be surprising.

I don't know why they'd have changed things in this way.

-- 
Bruce Stephens			Bruce.Stephens@MessagingDirect.com
MessagingDirect(UK) Ltd		<URL: http://www.MessagingDirect.com/ >

  reply	other threads:[~2000-08-03  9:40 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <Thomas>
     [not found] ` <Heller's>
     [not found]   ` <message>
     [not found]     ` <of>
     [not found]       ` <"Tue,>
     [not found]       ` <"Wed,>
     [not found]       ` <"Fri,>
     [not found]         ` <15>
     [not found]       ` <"Mon,>
     [not found]         ` <20>
     [not found]       ` <"Thu,>
     [not found]         ` <3>
     [not found]           ` <Aug>
     [not found]             ` <2000>
     [not found]               ` <15:23:58>
     [not found]                 ` <-0800>
     [not found]                   ` <Mo>
     [not found]               ` <05:03:28>
     [not found]                 ` <-0700>
2000-09-15  5:06                   ` SN452 Installation Rouviere, Stephane
2000-09-15  5:24                     ` Bruce Stephens
2000-09-15 11:20                       ` Syd Polk
     [not found]               ` <18:21:47>
     [not found]                 ` <+0200>
2000-08-03  9:22                   ` Getting started with tcl Thomas Heller
2000-08-03  9:40                     ` Bruce Stephens [this message]
2000-08-03 10:19                       ` Syd Polk
2000-09-27  1:12                   ` Source navigator roadmap, features list, etc.? William Gacquer
2000-09-27 22:16                     ` Bruce Stephens
2000-09-28  9:15                       ` Berek
2000-09-28 13:26                         ` Syd Polk
2000-09-28 13:22                       ` Syd Polk
2000-10-03 16:02                     ` Mo DeJong
2000-10-04 10:25                       ` Syd Polk
2000-10-04 13:27                         ` SN Printing Under WIN/NT Berek
2000-10-04 15:27                           ` Mo DeJong
2000-10-04 16:50                             ` Paul Selormey
2000-10-04 17:04                               ` Mo DeJong
2000-10-05 12:06                           ` Syd Polk
2000-10-05 13:13                             ` Berek
2000-11-20  4:47 future plans Simone Contini
2000-11-20 12:02 ` Syd Polk
2000-11-20 15:24 ` Mo DeJong
2000-11-20 15:37   ` Timothee Besset
2000-11-21 11:02     ` Mo DeJong
2000-11-20 16:13   ` Tom Tromey
2000-11-21 12:22     ` Syd Polk
2000-11-21 12:31       ` Mo DeJong
2000-11-21 12:32       ` Tom Tromey
2000-11-21 15:18         ` Bruce Stephens
2000-11-21 15:47           ` Tom Tromey
2000-11-21 15:41         ` Syd Polk
     [not found] <Syd>
     [not found] <Rouviere,>
     [not found] <William>

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