Please don't modify the gem installation files, that is a sure way to lose
your changes. If you're using sass on the command line make a file called
sass_extensions.rb and add the following:
module Sass::Script::Functions
def exp(value, power)
Sass::Script::Number.new(value.value**power.value)
end
end
Then compile your stylesheets like this:
sass -r sass_extensions foo.sass:foo.scss
chris
On Sun, Apr 24, 2011 at 8:23 PM, davidyeiser
<[email protected]>wrote:
> Yes, you are correct. I tried changing the spelling of one of the
> other functions and it still executed it fine. (I changed def
> abs(value) to def absl(value). Nothing happened.)
>
> I'm experimenting with all this on Mac OS X 10.6.6. The Ruby version
> is 1.8.7.
>
> The file where I am trying to add the custom function is:
>
> /usr/lib/ruby/user-gems/1.8/gems/haml-3.0.25/lib/sass/script/
> functions.rb
>
> Is this the wrong file?
>
> On Apr 24, 4:25 pm, Chris Eppstein <[email protected]> wrote:
> > I suspect that you're code is not being required at all because the code
> you
> > pasted isn't going to work and the behavior you're seeing is as if it's
> not
> > present. The code should be:
> >
> > def exp(value, power)
> > Sass::Script::Number.new(value.value**power.value)
> > end
> >
> > chris
> >
> > On Sun, Apr 24, 2011 at 11:32 AM, davidyeiser
> > <[email protected]>wrote:
> >
> >
> >
> > > Ah, gotcha. Thanks.
> >
> > > This is what I added to the functions.rb file:
> >
> > > def exp(value, power)
> > > Sass::Script::Number.new(value**power)
> > > end
> >
> > > (I added it beneath the def abs(value) function.)
> >
> > > However, when I use it in my .scss file and then output it to .css it
> > > doesn't execute.
> >
> > > For example:
> >
> > > style.scss
> > > ----------
> > > font-size: exp(2px, 3);
> >
> > > Outputs to:
> >
> > > style.css
> > > ---------
> > > font-size: exp(2px, 3);
> >
> > > The other functions execute fine, and the command line output gives no
> > > error. (I'm using sass --watch style.scss:style.css --style compact)
> >
> > > Any idea on what I'm doing wrong?
> >
> > > P.S. It's probably obvious that I've never programmed in Ruby before,
> > > and if this mailing list isn't supposed to be used for n00b support
> > > just let me know. Thanks!
> >
> > > On Apr 24, 10:39 am, Chris Eppstein <[email protected]> wrote:
> > > > You're not missing it. There's no syntax or function for this. You
> can
> > > add a custom function to sass to implement this in ruby.
> >
> > > > Chris
> >
> > > > Hunt & pecked on my iPhone... Sorry if it's brief!
> >
> > > > On Apr 23, 2011, at 10:29 PM, davidyeiser <
> [email protected]>
> > > wrote:
> >
> > > > > Forgive me if I'm missing something obvious, but is there a default
> > > > > way for SASS to execute exponential operators?
> >
> > > > > So, for example: 2 ^ 3 = 8
> >
> > > > > Thank you!
> >
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