X-Git-Url: https://git.r.bdr.sh/rbdr/dotfiles/blobdiff_plain/f6272d88eae76c8553f237f3f318c4a97997f262..fa25023586cb94a1abf4fd3ff95ebe7c3c8ead09:/zsh/modules/editor.zsh

diff --git a/zsh/modules/editor.zsh b/zsh/modules/editor.zsh
new file mode 100644
index 0000000..8bc4dae
--- /dev/null
+++ b/zsh/modules/editor.zsh
@@ -0,0 +1,195 @@
+#
+# 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]='�'
+  fi
+done
+
+#
+# External Editor
+#
+
+# Allow command line editing in an external editor.
+autoload -Uz edit-command-line
+zle -N edit-command-line
+
+# 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
+}
+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 (( $+terminfo[rmkx] )); then
+    # Disable terminal application mode.
+    echoti rmkx
+  fi
+}
+zle -N zle-line-finish
+
+# Displays an indicator when completing.
+function expand-or-complete-with-indicator {
+  local indicator
+  zstyle -s ':prezto:module:editor:info:completing' format 'indicator'
+  print -Pn "$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 $BUFFER"
+    (( CURSOR += 5 ))
+  fi
+}
+zle -N prepend-sudo
+
+# Reset to default key bindings.
+bindkey -d
+
+#
+# Vi Key Bindings
+#
+
+# Edit command in an external editor.
+bindkey -M vicmd "v" edit-command-line
+
+# Undo/Redo
+bindkey -M vicmd "u" undo
+bindkey -M vicmd "$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
+
+  # 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
+
+#
+# Layout
+#
+
+# Set the key layout.
+bindkey -v
+
+unset key{,map,bindings}