Fix rationalize-dot to avoing messing up ~isearch~

Also, take care of the British spelling…

zshrc.org

@@ -328,17 +328,6 @@ BIG FAT WARNING: this needs to specify an actual file as a destination
 
   export PATH="/usr/local/bin:/usr/bin:/bin:/opt/bin:/usr/games/bin"
 
-  # rationalise-dot; useful for cd ......./whatever
-  rationalise-dot() {
-    if [[ $LBUFFER = *.. ]]; then
-      LBUFFER+=/..
-    else
-      LBUFFER+=.
-    fi
-  }
-  zle -N rationalise-dot
-  bindkey . rationalise-dot
-
   bindkey -s '^[(' '()^B'
   bindkey -s '^[{' '{}^B'
   # Make ctrl-Backspace work
@@ -346,6 +335,27 @@ BIG FAT WARNING: this needs to specify an actual file as a destination
 
   autoload zmv
 #+end_src
+This expands ... to ../.. and so on.  See [[https://stackoverflow.com/questions/23456873/multi-dot-paths-in-zsh-like-cd][this post]] for source and
+further reference
+#+begin_src sh
+  if is-at-least 5.0.0 && [[ ! $UID -eq 0 ]]; then
+      ## http://www.zsh.org/mla/users/2010/msg00769.html
+      function rationalize-dot()
+      {
+          local MATCH # keep the regex match from leaking to the environment
+          if [[ $LBUFFER =~ '(^|/| |      |'$'\n''|\||;|&)\.\.$' && ! $LBUFFER = p4* ]]; then
+              #if [[ ! $LBUFFER = p4* && $LBUFFER = *.. ]]; then
+              LBUFFER+=/..
+          else
+              zle self-insert
+          fi
+      }
+
+      zle -N rationalize-dot
+      bindkey . rationalize-dot
+      bindkey -M isearch . self-insert
+  fi
+#+end_src
 *** TODO editor env variables                                         :daily:
 This needs to be diff'd among the versions
 #+begin_src sh