[TxMt] Re: Questions about Templates

[Neil]

On Wed, Jul 8, 2009 at 9:24 AM, Dru Kepple <dru at summitprojects.com> wrote:

> > From: Neil <kngspook at gmail.com>
> >
> > 3. As I make these Templates, I'm finding a lot of common text between
> them,
> > and when I want to tweak it across the board...well, it's like
> programming
> > without functions. What, if anything, can I do to reduce redundancy in my
> > templates?
>
> I'm sure this is possible, and I've fiddled about with doing something
> similar, but haven't put too much effort into this.  You can execute Ruby
> from within snippets, and in theory you could put your repository of
> reusable snippet text within a file or a preference or something, and just
> put the text in through Ruby.
>
> So, I just threw something together, and got this working.
>
> 1. In your bundle on the hard drive, create a folder called "Support"
> (right-click the bundle in ~/Library/Application Support/TextMate/Bundles/,
> choose show package contents)
>
> 2. In this folder, create a few ruby files that will contain your reusable
> snippet text.
>
> 3. Each file might look like this:
>
> print 'Here is some reusable text.'
>
> 4. In your snippet, add this "tab stop" to load the file and insert the
> text:
>
> This is my snippet... ${1:`#!/usr/bin/env ruby
>    require ENV['TM_BUNDLE_SUPPORT'] + '/SnippetRepo'
>    `}$0
>
> Starting with the ${1: is the embedded ruby that executes; I don't know if
> you know ruby or not, but all it does is load and execute that file you
> created in the Support folder.  Again, not sure how much you know, but
> TM_BUNDLE_SUPPORT provide the path to the bundle's Support folder.  You
> have
> to manually create the Support folder (as far as I know), and it has to be
> at the root level of the bundle, spelled right, etc.  But then
> TM_BUNDLE_SUPPORT provides easy access to files that your bundle will use,
> but isn't directly a Snippet, or Command, or whatever.
>
> The disadvantage with this technique is that, as far as I know, ruby can
> only be executed from the tab stops, so when the snippet expands and you
> tab
> through the other stops, this boiler plate text will get highlighted, as
> well, and potentially altered.
>
> Also, I'm not sure how to be more intelligent about the text inserted this
> way; I'm sure it's possible, but I don't know if the snippet can
> communicate
> with the script you run or vice versa.  You can, however, run ruby as if it
> were a command, so you should have access to all of those shell variables
> that you can use in commands, like TM_FILENAME and the like.
>
> I hope that helps; please post any further advancements you make in this
> area.  I'm interested, as well!
>
> +dru
>
>
Thanks for the response.

That will help quite a bit, for things like making #include guards in my C
bundle. But for some other things, I'd like to be able to share across
bundles (eg. copyright notices). I suppose I could do something like that by
just putting it in the TM_SUPPORT folder instead of the TM_BUNDLE_SUPPORT?

I do know a little Ruby... Is it just Ruby that's supported, or any
scripting language?

Thanks again,
Neil.
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