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.
jimhester · Feb 26, 2013 · 3639d66 · 3639d66
1 parent fce68bb
commit 3639d66
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Showing 3 changed files with 41 additions and 37 deletions.
diff --git 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
@@ -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
@@ -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%}"