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On Wed, Dec 30, 2009 at 08:06:02PM +0800, Russell Keith-Magee wrote:
> On Wed, Dec 30, 2009 at 8:15 AM, Nic Pottier <nicpott...@gmail.com> wrote:
> >
> > New to Django, but certainly not web development. After being
> > pleasantly surprised with a lot of the available Django filters I was
> > rather surprised not to see a string truncation filter included.
> >
> > A little googling shows I'm not the only one, there are tons of people
> > writing their own filters to accomplish this, and sure enough a nice
> > looking patch submitted two (TWO!) years ago to add a |truncate.
> >
> > I'd be curious to hear what the reason for not accepting this patch
> > is. String truncation is a pretty common task, and having it built in
> > seems like a no-brainer.
>
> I disagree.
>
> Firstly, as James points out, slice already exists, and the ellipsis
> difference between slice and truncate can be easily overcome with
> additional code.
>
> Secondly, IMHO raw truncation based on characters is bad practice for
> human readable text. A sentence is composed of words, not characters.
> Truncating a sentence mid-word isn't a typographical practice that I
> particularly want to encourage.
>
> I would be marginally more inclined to support a truncate filter that
> obeyed word boundaries i.e., no more than 50 characters, but stop at
> the end of the last complete word. However, even with this
> modification - what's the use case for an N character truncation? It
> can't (or shouldn't be) to make sure that text will fit into a visual
> space. You can't guarantee how wide N characters will be at
> render-time due to differences in character width. If you want to
> truncate for display purposes, you should be looking at CSS overflow
> properties or other display-level tricks.
This feature, of truncating in word bondaries or truncating
based on characters, could be added as an option. I think it's valid
to take a look at the truncate[1] filter of the Smarty Template Engine
because it solves some of the problems that have been discussed here.
[1]. http://www.smarty.net/manual/en/language.modifier.truncate.php
- --
Best regards,
Arthur Furlan (afurlan)
afur...@afurlan.org
http://blog.afurlan.org
Public GPG KeyID: 27D81084
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