diff --git a/dot.vimrc b/dot.vimrc
index 9bc55b9..9431386 100644
--- a/dot.vimrc
+++ b/dot.vimrc
@@ -279,6 +279,9 @@ func! DeleteTrailingWS()
 endfunc
 autocmd BufWrite *.py :call DeleteTrailingWS()
 autocmd BufWrite *.coffee :call DeleteTrailingWS()
+autocmd BufWrite *.rb :call DeleteTrailingWS()
+autocmd BufWrite *.c :call DeleteTrailingWS()
+autocmd BufWrite *.xml :call DeleteTrailingWS()
 
 
 """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
@@ -343,6 +346,14 @@ map <leader>pp :setlocal paste!<cr>
 
 set colorcolumn=20
 
+""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+" => Regex 
+"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+" Force using the old regex engine. 
+" Canonical ruby gives the new engine a hard time - its slow!
+set re=1
+
+
 """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
 " => Helper functions
 """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
diff --git a/dot.zshrc b/dot.zshrc
index 380a4d4..444a424 100644
--- a/dot.zshrc
+++ b/dot.zshrc
@@ -86,4 +86,15 @@ source $ZSH/oh-my-zsh.sh
 # ############################
 alias open="open_command"
 alias vim="gvim -v"
-# alias ohmyzsh="mate ~/.oh-my-zsh"
+
+function ws-replace {
+    sed --in-place 's/[[:space:]]\+$//' $1
+}
+function ws-rreplace {
+    find $1 -type f -exec sed --in-place 's/[[:space:]]\+$//' {} \+
+}
+
+# functions
+function gui {
+    javaws http://$1/mcs-gui/mcs-gui.jnlp\?user\=meos
+}