Implemented UTF-8 support in fishy.zsh-theme.

themes/fishy.zsh-theme

 # ZSH Theme emulating the Fish shell's default prompt.
 
 _fishy_collapsed_wd() {
-  echo $(pwd | perl -pe "s|^$HOME|~|g; s|/([^/])[^/]*(?=/)|/\$1|g")
+  echo $(pwd | perl -pe "
+   BEGIN {
+      binmode STDIN,  ':encoding(UTF-8)';
+      binmode STDOUT, ':encoding(UTF-8)';
+   }; s|^$HOME|~|g; s|/([^/])[^/]*(?=/)|/\$1|g
+")
 } 
 
 local user_color='green'; [ $UID -eq 0 ] && user_color='red'