[STUMP] Patch to STUMPWM::FORMAT-EXPANDER in primitives.lisp

[Adlai Chandrasekhar]

Greetings, fellow tilers of windows!

I've written a little patch for a friend, that enables the use of ^ after 
a number in a format expansion string (such as *SCREEN-MODE-LINE-FORMAT* 
or *WINDOW-FORMAT*) to trim from the left, instead of the right.

I picked the #\^ character because it's fairly standard for an 
end-of-string anchor, because of its use in perl-compatible regex. I 
considered using one of the FORMAT modify characters, but since format 
expansion strings aren't format strings, I ended up settling with this.

Thoughts? Comments? Cookies? Flames? Patch attached.

The patch was made against commit 95c420e6214908d96e08eeed27bb7a1ee0d103bf 
from the official git repo. I've made a commit in my local repo, so I 
could push this myself if that's more convenient.

Happy Hacking,
Adlai

0001-Added-left-trim-option-for-format-expand-strings.patch
Description: format-expander patch