From 29b055466608edd981732f1820d3c97a35d9ff67 Mon Sep 17 00:00:00 2001
From: Sorin Ionescu <sorin.ionescu@gmail.com>
Date: Fri, 4 Feb 2011 23:23:14 -0500
Subject: [PATCH] Vastly improved vi-mode plugin.

---
 plugins/vi-mode/vi-mode.plugin.zsh | 77 +++++++++++++++++++++++-------
 1 file changed, 61 insertions(+), 16 deletions(-)

diff --git a/plugins/vi-mode/vi-mode.plugin.zsh b/plugins/vi-mode/vi-mode.plugin.zsh
index c47ab72..0848047 100644
--- a/plugins/vi-mode/vi-mode.plugin.zsh
+++ b/plugins/vi-mode/vi-mode.plugin.zsh
@@ -1,22 +1,67 @@
+# ------------------------------------------------------------------------------
+#          FILE:  vi-mode.plugin.zsh
+#   DESCRIPTION:  oh-my-zsh plugin file.
+#        AUTHOR:  Sorin Ionescu (sorin.ionescu@gmail.com)
+#       VERSION:  1.0.2
+# ------------------------------------------------------------------------------
+
+
+# Allow command line editing in an external editor.
+autoload -Uz edit-command-line
+
+# If mode indicator wasn't setup by theme, define a default.
+if [[ "$MODE_INDICATOR" == "" ]]; then
+  MODE_INDICATOR="%{$fg_bold[red]%}<%{$reset_color%}%{$fg[red]%}<<%{$reset_color%}"
+fi
+
 function zle-line-init zle-keymap-select {
   zle reset-prompt
 }
 
-zle -N zle-line-init
-zle -N zle-keymap-select
-
-bindkey -v
-
-# if mode indicator wasn't setup by theme, define default
-if [[ "$MODE_INDICATOR" == "" ]]; then
-  MODE_INDICATOR="%{$fg_bold[red]%}<%{$fg[red]%}<<%{$reset_color%}"
-fi
-
-function vi_mode_prompt_info() {
-  echo "${${KEYMAP/vicmd/$MODE_INDICATOR}/(main|viins)/}"
+# If I am using vi keys, I want to know what mode I'm currently using.
+# zle-keymap-select is executed every time KEYMAP changes.
+# From http://zshwiki.org/home/examples/zlewidgets
+function zle-line-init zle-keymap-select {
+  if [[ "$KEYMAP" == 'vicmd' ]]; then
+    rprompt_cached="$RPROMPT"
+    RPROMPT="$MODE_INDICATOR"
+  elif [[ -n "$rprompt_cached" ]]; then
+    RPROMPT="$rprompt_cached"
+    rprompt_cached=""
+  fi
+  zle reset-prompt
 }
 
-# define right prompt, if it wasn't defined by a theme
-if [[ "$RPS1" == "" && "$RPROMPT" == "" ]]; then
-  RPS1='$(vi_mode_prompt_info)'
-fi
+# Accept RETURN in vi command mode.
+function accept_line {
+  if [[ -n "$rprompt_cached" ]]; then
+    RPROMPT="$rprompt_cached"
+    rprompt_cached=""
+  fi
+  builtin zle .accept-line
+}
+
+zle -N zle-line-init
+zle -N zle-keymap-select
+zle -N accept_line
+zle -N edit-command-line
+
+# Avoid binding ^J, ^M,  ^C, ^?, ^S, ^Q, etc.
+bindkey -d # Reset to default.
+bindkey -v # Use vi key bindings.
+bindkey -M vicmd "^M" accept_line # Alow RETURN in vi command.
+bindkey -M vicmd v edit-command-line # ESC-v to edit in an external editor.
+
+bindkey ' ' magic-space
+bindkey -M vicmd "gg" beginning-of-history
+bindkey -M vicmd "G" end-of-history
+bindkey -M vicmd "k" history-search-backward
+bindkey -M vicmd "j" history-search-forward
+bindkey -M vicmd "?" history-incremental-search-backward
+bindkey -M vicmd "/" history-incremental-search-forward
+
+bindkey -M viins "^L" clear-screen
+bindkey -M viins "^W" backward-kill-word
+bindkey -M viins "^A" beginning-of-line
+bindkey -M viins "^E" end-of-line
+