new zsh widgets

+ new fzf-cd-widget for running cd

* fzf-file-widget now properly escapes the special characters and supports
  multi-selection

* fzf-history-widget replaces the current line instead of appending to it

README.md

@@ -177,20 +177,35 @@ zsh widgets
 -----------
 
 ```sh
-# CTRL-T - Paste the selected file path into the command line
+# CTRL-T - Paste the selected file(s) path into the command line
 fzf-file-widget() {
-  LBUFFER+=$(
-      find * -path '*/\.*' -prune \
-      -o -type f -print \
-      -o -type l -print 2> /dev/null | fzf)
+  local FILES
+  local IFS="
+"
+  FILES=($(
+    find * -path '*/\.*' -prune \
+    -o -type f -print \
+    -o -type l -print 2> /dev/null | fzf -m))
+  unset IFS
+  FILES=$FILES:q
+  LBUFFER="${LBUFFER%% #} $FILES"
   zle redisplay
 }
 zle     -N   fzf-file-widget
 bindkey '^T' fzf-file-widget
 
+# ALT-C - cd into the selected directory
+fzf-cd-widget() {
+  cd ${$(find * -path '*/\.*' -prune \
+         -o -type d -print 2> /dev/null | fzf):-.}
+  zle reset-prompt
+}
+zle     -N    fzf-cd-widget
+bindkey '\ec' fzf-cd-widget
+
 # CTRL-R - Paste the selected command from history into the command line
 fzf-history-widget() {
-  LBUFFER+=$(history | fzf +s | sed "s/ *[0-9]* *//")
+  LBUFFER=$(history | fzf +s | sed "s/ *[0-9]* *//")
   zle redisplay
 }
 zle     -N   fzf-history-widget