320 lines
7.9 KiB
Bash
320 lines
7.9 KiB
Bash
#
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# Sets key bindings.
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#
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# Authors:
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# Sorin Ionescu <sorin.ionescu@gmail.com>
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#
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# Return if requirements are not found.
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if [[ "$TERM" == 'dumb' ]]; then
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return 1
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fi
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#
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# Options
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#
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# Beep on error in line editor.
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setopt BEEP
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#
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# Variables
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#
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# Treat these characters as part of a word.
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WORDCHARS='*?_-.[]~&;!#$%^(){}<>'
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# Use human-friendly identifiers.
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zmodload zsh/terminfo
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typeset -gA key_info
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key_info=(
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'Control' '\C-'
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'Escape' '\e'
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'Meta' '\M-'
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'Backspace' "^?"
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'Delete' "^[[3~"
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'F1' "$terminfo[kf1]"
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'F2' "$terminfo[kf2]"
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'F3' "$terminfo[kf3]"
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'F4' "$terminfo[kf4]"
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'F5' "$terminfo[kf5]"
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'F6' "$terminfo[kf6]"
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'F7' "$terminfo[kf7]"
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'F8' "$terminfo[kf8]"
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'F9' "$terminfo[kf9]"
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'F10' "$terminfo[kf10]"
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'F11' "$terminfo[kf11]"
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'F12' "$terminfo[kf12]"
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'Insert' "$terminfo[kich1]"
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'Home' "$terminfo[khome]"
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'PageUp' "$terminfo[kpp]"
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'End' "$terminfo[kend]"
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'PageDown' "$terminfo[knp]"
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'Up' "$terminfo[kcuu1]"
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'Left' "$terminfo[kcub1]"
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'Down' "$terminfo[kcud1]"
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'Right' "$terminfo[kcuf1]"
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'BackTab' "$terminfo[kcbt]"
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)
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# Set empty $key_info values to an invalid UTF-8 sequence to induce silent
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# bindkey failure.
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for key in "${(k)key_info[@]}"; do
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if [[ -z "$key_info[$key]" ]]; then
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key_info["$key"]='<27>'
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fi
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done
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#
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# External Editor
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#
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# Allow command line editing in an external editor.
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autoload -Uz edit-command-line
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zle -N edit-command-line
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#
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# Functions
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#
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# Exposes information about the Zsh Line Editor via the $editor_info associative
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# array.
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function editor-info {
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# Clean up previous $editor_info.
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unset editor_info
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typeset -gA editor_info
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if [[ "$KEYMAP" == 'vicmd' ]]; then
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zstyle -s ':prezto:module:editor:info:keymap:alternate' format 'REPLY'
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editor_info[keymap]="$REPLY"
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else
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zstyle -s ':prezto:module:editor:info:keymap:primary' format 'REPLY'
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editor_info[keymap]="$REPLY"
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if [[ "$ZLE_STATE" == *overwrite* ]]; then
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zstyle -s ':prezto:module:editor:info:keymap:primary:overwrite' format 'REPLY'
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editor_info[overwrite]="$REPLY"
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else
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zstyle -s ':prezto:module:editor:info:keymap:primary:insert' format 'REPLY'
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editor_info[overwrite]="$REPLY"
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fi
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fi
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unset REPLY
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zle reset-prompt
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zle -R
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}
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zle -N editor-info
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# Ensures that $terminfo values are valid and updates editor information when
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# the keymap changes.
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function zle-keymap-select zle-line-init zle-line-finish {
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# The terminal must be in application mode when ZLE is active for $terminfo
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# values to be valid.
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if (( $+terminfo[smkx] && $+terminfo[rmkx] )); then
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case "$0" in
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(zle-line-init)
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# Enable terminal application mode.
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echoti smkx
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;;
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(zle-line-finish)
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# Disable terminal application mode.
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echoti rmkx
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;;
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esac
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fi
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# Update editor information.
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zle editor-info
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}
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zle -N zle-keymap-select
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zle -N zle-line-finish
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zle -N zle-line-init
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# Toggles emacs overwrite mode and updates editor information.
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function overwrite-mode {
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zle .overwrite-mode
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zle editor-info
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}
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zle -N overwrite-mode
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# Enters vi insert mode and updates editor information.
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function vi-insert {
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zle .vi-insert
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zle editor-info
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}
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zle -N vi-insert
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# Moves to the first non-blank character then enters vi insert mode and updates
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# editor information.
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function vi-insert-bol {
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zle .vi-insert-bol
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zle editor-info
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}
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zle -N vi-insert-bol
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# Enters vi replace mode and updates editor information.
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function vi-replace {
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zle .vi-replace
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zle editor-info
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}
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zle -N vi-replace
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# Expands .... to ../..
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function expand-dot-to-parent-directory-path {
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if [[ $LBUFFER = *.. ]]; then
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LBUFFER+='/..'
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else
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LBUFFER+='.'
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fi
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}
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zle -N expand-dot-to-parent-directory-path
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# Displays an indicator when completing.
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function expand-or-complete-with-indicator {
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local indicator
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zstyle -s ':prezto:module:editor:info:completing' format 'indicator'
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print -Pn "$indicator"
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zle expand-or-complete
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zle redisplay
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}
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zle -N expand-or-complete-with-indicator
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# Inserts 'sudo ' at the beginning of the line.
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function prepend-sudo {
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if [[ "$BUFFER" != su(do|)\ * ]]; then
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BUFFER="sudo $BUFFER"
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(( CURSOR += 5 ))
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fi
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}
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zle -N prepend-sudo
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# Reset to default key bindings.
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bindkey -d
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#
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# Emacs Key Bindings
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#
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for key ("$key_info[Escape]"{B,b}) bindkey -M emacs "$key" emacs-backward-word
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for key ("$key_info[Escape]"{F,f}) bindkey -M emacs "$key" emacs-forward-word
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bindkey -M emacs "$key_info[Escape]$key_info[Left]" emacs-backward-word
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bindkey -M emacs "$key_info[Escape]$key_info[Right]" emacs-forward-word
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# Kill to the beginning of the line.
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for key in "$key_info[Escape]"{K,k}
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bindkey -M emacs "$key" backward-kill-line
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# Redo.
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bindkey -M emacs "$key_info[Escape]_" redo
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# Search previous character.
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bindkey -M emacs "$key_info[Control]X$key_info[Control]B" vi-find-prev-char
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# Match bracket.
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bindkey -M emacs "$key_info[Control]X$key_info[Control]]" vi-match-bracket
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# Edit command in an external editor.
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bindkey -M emacs "$key_info[Control]X$key_info[Control]E" edit-command-line
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if (( $+widgets[history-incremental-pattern-search-backward] )); then
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bindkey -M emacs "$key_info[Control]R" \
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history-incremental-pattern-search-backward
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bindkey -M emacs "$key_info[Control]S" \
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history-incremental-pattern-search-forward
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fi
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#
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# Vi Key Bindings
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#
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# Edit command in an external editor.
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bindkey -M vicmd "v" edit-command-line
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# Undo/Redo
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bindkey -M vicmd "u" undo
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bindkey -M vicmd "$key_info[Control]R" redo
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if (( $+widgets[history-incremental-pattern-search-backward] )); then
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bindkey -M vicmd "?" history-incremental-pattern-search-backward
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bindkey -M vicmd "/" history-incremental-pattern-search-forward
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else
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bindkey -M vicmd "?" history-incremental-search-backward
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bindkey -M vicmd "/" history-incremental-search-forward
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fi
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#
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# Emacs and Vi Key Bindings
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#
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for keymap in 'emacs' 'viins'; do
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bindkey -M "$keymap" "$key_info[Home]" beginning-of-line
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bindkey -M "$keymap" "$key_info[End]" end-of-line
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bindkey -M "$keymap" "$key_info[Insert]" overwrite-mode
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bindkey -M "$keymap" "$key_info[Delete]" delete-char
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bindkey -M "$keymap" "$key_info[Backspace]" backward-delete-char
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bindkey -M "$keymap" "$key_info[Left]" backward-char
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bindkey -M "$keymap" "$key_info[Right]" forward-char
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# Expand history on space.
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bindkey -M "$keymap" ' ' magic-space
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# Clear screen.
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bindkey -M "$keymap" "$key_info[Control]L" clear-screen
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# Expand command name to full path.
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for key in "$key_info[Escape]"{E,e}
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bindkey -M "$keymap" "$key" expand-cmd-path
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# Duplicate the previous word.
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for key in "$key_info[Escape]"{M,m}
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bindkey -M "$keymap" "$key" copy-prev-shell-word
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# Use a more flexible push-line.
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for key in "$key_info[Control]Q" "$key_info[Escape]"{q,Q}
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bindkey -M "$keymap" "$key" push-line-or-edit
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# Bind Shift + Tab to go to the previous menu item.
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bindkey -M "$keymap" "$key_info[BackTab]" reverse-menu-complete
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# Complete in the middle of word.
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bindkey -M "$keymap" "$key_info[Control]I" expand-or-complete
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# Expand .... to ../..
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if zstyle -t ':prezto:module:editor' dot-expansion; then
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bindkey -M "$keymap" "." expand-dot-to-parent-directory-path
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fi
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# Display an indicator when completing.
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bindkey -M "$keymap" "$key_info[Control]I" \
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expand-or-complete-with-indicator
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# Insert 'sudo ' at the beginning of the line.
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bindkey -M "$keymap" "$key_info[Control]X$key_info[Control]S" prepend-sudo
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done
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# Do not expand .... to ../.. during incremental search.
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if zstyle -t ':prezto:module:editor' dot-expansion; then
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bindkey -M isearch . self-insert 2> /dev/null
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fi
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#
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# Layout
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#
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# Set the key layout.
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zstyle -s ':prezto:module:editor' key-bindings 'key_bindings'
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if [[ "$key_bindings" == (emacs|) ]]; then
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bindkey -e
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elif [[ "$key_bindings" == vi ]]; then
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bindkey -v
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else
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print "prezto: editor: invalid key bindings: $key_bindings" >&2
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fi
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unset key{,map,bindings}
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