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prezto/modules/editor/init.zsh
Samantha McVey 961326f8e9 [editor] Set Delete key in vicmd mode to delete character
Delete key deletes character in vimcmd cmd mode instead of weird
default functionality. The default functionality in vicmd mode
is the Delete key will change the case of many of the characters
on the screen, which is not the default thing that vim does.

This could be confusing and frustrating to users, so set it to delete
a character instead.
2017-06-23 13:37:48 -07:00

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