From 3639d665b527af243a0f837811ae8aa198ceb069 Mon Sep 17 00:00:00 2001
From: Jim Hester <james.f.hester@gmail.com>
Date: Tue, 26 Feb 2013 10:40:26 -0500
Subject: [PATCH] Setup special keybindings using terminfo

The support for special keys right now is simply with hardcoded values,
this commit changes that to using terminfo information for the keys to
set the binds.  Should be much more general, and just work, at least
most of the time.  This also fixes a bug in the vi-mode plugin where the
special keys were not bound because setting vi mode removes binds set in
emacs mode.
---
 lib/key-bindings.zsh               | 37 -----------------------------
 lib/special-keys.zsh               | 38 ++++++++++++++++++++++++++++++
 plugins/vi-mode/vi-mode.plugin.zsh |  3 +++
 3 files changed, 41 insertions(+), 37 deletions(-)
 create mode 100644 lib/special-keys.zsh

diff --git a/lib/key-bindings.zsh b/lib/key-bindings.zsh
index 5f499f3e8..0c5081abf 100644
--- a/lib/key-bindings.zsh
+++ b/lib/key-bindings.zsh
@@ -4,47 +4,10 @@ bindkey -e
 bindkey '\ew' kill-region
 bindkey -s '\el' "ls\n"
 bindkey '^r' history-incremental-search-backward
-bindkey "^[[5~" up-line-or-history
-bindkey "^[[6~" down-line-or-history
 
-# make search up and down work, so partially type and hit up/down to find relevant stuff
-bindkey '^[[A' up-line-or-search
-bindkey '^[[B' down-line-or-search
-
-bindkey "^[[H" beginning-of-line
-bindkey "^[[1~" beginning-of-line
-bindkey "^[OH" beginning-of-line
-bindkey "^[[F"  end-of-line
-bindkey "^[[4~" end-of-line
-bindkey "^[OF" end-of-line
 bindkey ' ' magic-space    # also do history expansion on space
 
 bindkey "^[[1;5C" forward-word
 bindkey "^[[1;5D" backward-word
 
 bindkey '^[[Z' reverse-menu-complete
-
-# Make the delete key (or Fn + Delete on the Mac) work instead of outputting a ~
-bindkey '^?' backward-delete-char
-bindkey "^[[3~" delete-char
-bindkey "^[3;5~" delete-char
-bindkey "\e[3~" delete-char
-
-# consider emacs keybindings:
-
-#bindkey -e  ## emacs key bindings
-#
-#bindkey '^[[A' up-line-or-search
-#bindkey '^[[B' down-line-or-search
-#bindkey '^[^[[C' emacs-forward-word
-#bindkey '^[^[[D' emacs-backward-word
-#
-#bindkey -s '^X^Z' '%-^M'
-#bindkey '^[e' expand-cmd-path
-#bindkey '^[^I' reverse-menu-complete
-#bindkey '^X^N' accept-and-infer-next-history
-#bindkey '^W' kill-region
-#bindkey '^I' complete-word
-## Fix weird sequence that rxvt produces
-#bindkey -s '^[[Z' '\t'
-#
diff --git a/lib/special-keys.zsh b/lib/special-keys.zsh
new file mode 100644
index 000000000..ac3c41ebe
--- /dev/null
+++ b/lib/special-keys.zsh
@@ -0,0 +1,38 @@
+#create special key keybindings (home, end, insert delete arrow keys)
+#see http://zshwiki.org/home/zle/bindkeys
+
+# create a zkbd compatible hash;
+# to add other keys to this hash, see: man 5 terminfo
+typeset -A key
+
+key[Home]=${terminfo[khome]}
+key[End]=${terminfo[kend]}
+key[Insert]=${terminfo[kich1]}
+key[Delete]=${terminfo[kdch1]}
+key[Up]=${terminfo[kcuu1]}
+key[Down]=${terminfo[kcud1]}
+key[Left]=${terminfo[kcub1]}
+key[Right]=${terminfo[kcuf1]}
+key[PageUp]=${terminfo[kpp]}
+key[PageDown]=${terminfo[knp]}
+
+# setup key accordingly
+[[ -n "${key[Home]}"    ]]  && bindkey  "${key[Home]}"    beginning-of-line
+[[ -n "${key[End]}"     ]]  && bindkey  "${key[End]}"     end-of-line
+[[ -n "${key[Insert]}"  ]]  && bindkey  "${key[Insert]}"  overwrite-mode
+[[ -n "${key[Delete]}"  ]]  && bindkey  "${key[Delete]}"  delete-char
+[[ -n "${key[Up]}"      ]]  && bindkey  "${key[Up]}"      up-line-or-history
+[[ -n "${key[Down]}"    ]]  && bindkey  "${key[Down]}"    down-line-or-history
+[[ -n "${key[Left]}"    ]]  && bindkey  "${key[Left]}"    backward-char
+[[ -n "${key[Right]}"   ]]  && bindkey  "${key[Right]}"   forward-char
+
+# Finally, make sure the terminal is in application mode, when zle is
+# active. Only then are the values from $terminfo valid.
+function zle-line-init () {
+    echoti smkx
+}
+function zle-line-finish () {
+    echoti rmkx
+}
+zle -N zle-line-init
+zle -N zle-line-finish  
diff --git a/plugins/vi-mode/vi-mode.plugin.zsh b/plugins/vi-mode/vi-mode.plugin.zsh
index a06100472..ab98ff517 100644
--- a/plugins/vi-mode/vi-mode.plugin.zsh
+++ b/plugins/vi-mode/vi-mode.plugin.zsh
@@ -20,6 +20,9 @@ zle -N zle-keymap-select
 
 bindkey -v
 
+#rebind special key keybinds
+source $ZSH/lib/special-keys.zsh
+
 # if mode indicator wasn't setup by theme, define default
 if [[ "$MODE_INDICATOR" == "" ]]; then
   MODE_INDICATOR="%{$fg_bold[red]%}<%{$fg[red]%}<<%{$reset_color%}"