typeset -g -A key

key[Home]="${terminfo[khome]}"
key[End]="${terminfo[kend]}"

[[ -n "${key[Home]}" ]] && bindkey -- "${key[Home]}" beginning-of-line
[[ -n "${key[End]}" ]] && bindkey -- "${key[End]}" end-of-line

if (( ${+terminfo[smkx]} && ${+terminfo[rmkx]} )); then
    autoload -Uz add-zle-hook-widget
    function zle_application_mode_start { echoti smkx }
    function zle_application_mode_stop { echoti rmkx }
    add-zle-hook-widget -Uz zle-line-init zle_application_mode_start
    add-zle-hook-widget -Uz zle-line-finish zle_application_mode_stop
fi

## keybinding for convenient viewing of man pages
if test -x "${HOME}/bin/split-man"; then
    split-man-widget() { "${HOME}/bin/split-man"}
    zle -N split-man-widget

    bindkey '^[m' split-man-widget
fi

## gumssh
if test -x "$(command -v gumssh)"; then
    bindkey -s '^[s' 'gumssh^M'
fi

## ranger
if test -x "$(command -v ranger)"; then
    bindkey -s '^[f' 'ranger^M'
fi

## history substring search
bindkey '^[[1;5A' history-substring-search-up
bindkey '^[[1;5B' history-substring-search-down