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authorVikas Kushwaha <dev@vikas.rocks>2025-01-24 10:35:59 +0530
committerVikas Kushwaha <dev@vikas.rocks>2025-01-24 10:35:59 +0530
commit18507fd21b7a7709133d8f3049c683e1abffcda2 (patch)
treed43bc141b2e588300e639bdb4f004ad6945e6081 /.config/zsh/plugins/zsh-autosuggestions.zsh
parente02304f014645a01ef6cdd40276997dea58504d9 (diff)
jupyter update
Diffstat (limited to '.config/zsh/plugins/zsh-autosuggestions.zsh')
-rw-r--r--.config/zsh/plugins/zsh-autosuggestions.zsh864
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diff --git a/.config/zsh/plugins/zsh-autosuggestions.zsh b/.config/zsh/plugins/zsh-autosuggestions.zsh
deleted file mode 100644
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--- a/.config/zsh/plugins/zsh-autosuggestions.zsh
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@@ -1,864 +0,0 @@
-# Fish-like fast/unobtrusive autosuggestions for zsh.
-# https://github.com/zsh-users/zsh-autosuggestions
-# v0.7.0
-# Copyright (c) 2013 Thiago de Arruda
-# Copyright (c) 2016-2021 Eric Freese
-#
-# Permission is hereby granted, free of charge, to any person
-# obtaining a copy of this software and associated documentation
-# files (the "Software"), to deal in the Software without
-# restriction, including without limitation the rights to use,
-# copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the
-# Software is furnished to do so, subject to the following
-# conditions:
-#
-# The above copyright notice and this permission notice shall be
-# included in all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
-# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
-# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-# OTHER DEALINGS IN THE SOFTWARE.
-
-#--------------------------------------------------------------------#
-# Global Configuration Variables #
-#--------------------------------------------------------------------#
-
-# Color to use when highlighting suggestion
-# Uses format of `region_highlight`
-# More info: http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#Zle-Widgets
-(( ! ${+ZSH_AUTOSUGGEST_HIGHLIGHT_STYLE} )) &&
-typeset -g ZSH_AUTOSUGGEST_HIGHLIGHT_STYLE='fg=8'
-
-# Prefix to use when saving original versions of bound widgets
-(( ! ${+ZSH_AUTOSUGGEST_ORIGINAL_WIDGET_PREFIX} )) &&
-typeset -g ZSH_AUTOSUGGEST_ORIGINAL_WIDGET_PREFIX=autosuggest-orig-
-
-# Strategies to use to fetch a suggestion
-# Will try each strategy in order until a suggestion is returned
-(( ! ${+ZSH_AUTOSUGGEST_STRATEGY} )) && {
- typeset -ga ZSH_AUTOSUGGEST_STRATEGY
- ZSH_AUTOSUGGEST_STRATEGY=(history)
-}
-
-# Widgets that clear the suggestion
-(( ! ${+ZSH_AUTOSUGGEST_CLEAR_WIDGETS} )) && {
- typeset -ga ZSH_AUTOSUGGEST_CLEAR_WIDGETS
- ZSH_AUTOSUGGEST_CLEAR_WIDGETS=(
- history-search-forward
- history-search-backward
- history-beginning-search-forward
- history-beginning-search-backward
- history-substring-search-up
- history-substring-search-down
- up-line-or-beginning-search
- down-line-or-beginning-search
- up-line-or-history
- down-line-or-history
- accept-line
- copy-earlier-word
- )
-}
-
-# Widgets that accept the entire suggestion
-(( ! ${+ZSH_AUTOSUGGEST_ACCEPT_WIDGETS} )) && {
- typeset -ga ZSH_AUTOSUGGEST_ACCEPT_WIDGETS
- ZSH_AUTOSUGGEST_ACCEPT_WIDGETS=(
- forward-char
- end-of-line
- vi-forward-char
- vi-end-of-line
- vi-add-eol
- )
-}
-
-# Widgets that accept the entire suggestion and execute it
-(( ! ${+ZSH_AUTOSUGGEST_EXECUTE_WIDGETS} )) && {
- typeset -ga ZSH_AUTOSUGGEST_EXECUTE_WIDGETS
- ZSH_AUTOSUGGEST_EXECUTE_WIDGETS=(
- )
-}
-
-# Widgets that accept the suggestion as far as the cursor moves
-(( ! ${+ZSH_AUTOSUGGEST_PARTIAL_ACCEPT_WIDGETS} )) && {
- typeset -ga ZSH_AUTOSUGGEST_PARTIAL_ACCEPT_WIDGETS
- ZSH_AUTOSUGGEST_PARTIAL_ACCEPT_WIDGETS=(
- forward-word
- emacs-forward-word
- vi-forward-word
- vi-forward-word-end
- vi-forward-blank-word
- vi-forward-blank-word-end
- vi-find-next-char
- vi-find-next-char-skip
- )
-}
-
-# Widgets that should be ignored (globbing supported but must be escaped)
-(( ! ${+ZSH_AUTOSUGGEST_IGNORE_WIDGETS} )) && {
- typeset -ga ZSH_AUTOSUGGEST_IGNORE_WIDGETS
- ZSH_AUTOSUGGEST_IGNORE_WIDGETS=(
- orig-\*
- beep
- run-help
- set-local-history
- which-command
- yank
- yank-pop
- zle-\*
- )
-}
-
-# Pty name for capturing completions for completion suggestion strategy
-(( ! ${+ZSH_AUTOSUGGEST_COMPLETIONS_PTY_NAME} )) &&
-typeset -g ZSH_AUTOSUGGEST_COMPLETIONS_PTY_NAME=zsh_autosuggest_completion_pty
-
-#--------------------------------------------------------------------#
-# Utility Functions #
-#--------------------------------------------------------------------#
-
-_zsh_autosuggest_escape_command() {
- setopt localoptions EXTENDED_GLOB
-
- # Escape special chars in the string (requires EXTENDED_GLOB)
- echo -E "${1//(#m)[\"\'\\()\[\]|*?~]/\\$MATCH}"
-}
-
-#--------------------------------------------------------------------#
-# Widget Helpers #
-#--------------------------------------------------------------------#
-
-_zsh_autosuggest_incr_bind_count() {
- typeset -gi bind_count=$((_ZSH_AUTOSUGGEST_BIND_COUNTS[$1]+1))
- _ZSH_AUTOSUGGEST_BIND_COUNTS[$1]=$bind_count
-}
-
-# Bind a single widget to an autosuggest widget, saving a reference to the original widget
-_zsh_autosuggest_bind_widget() {
- typeset -gA _ZSH_AUTOSUGGEST_BIND_COUNTS
-
- local widget=$1
- local autosuggest_action=$2
- local prefix=$ZSH_AUTOSUGGEST_ORIGINAL_WIDGET_PREFIX
-
- local -i bind_count
-
- # Save a reference to the original widget
- case $widgets[$widget] in
- # Already bound
- user:_zsh_autosuggest_(bound|orig)_*)
- bind_count=$((_ZSH_AUTOSUGGEST_BIND_COUNTS[$widget]))
- ;;
-
- # User-defined widget
- user:*)
- _zsh_autosuggest_incr_bind_count $widget
- zle -N $prefix$bind_count-$widget ${widgets[$widget]#*:}
- ;;
-
- # Built-in widget
- builtin)
- _zsh_autosuggest_incr_bind_count $widget
- eval "_zsh_autosuggest_orig_${(q)widget}() { zle .${(q)widget} }"
- zle -N $prefix$bind_count-$widget _zsh_autosuggest_orig_$widget
- ;;
-
- # Completion widget
- completion:*)
- _zsh_autosuggest_incr_bind_count $widget
- eval "zle -C $prefix$bind_count-${(q)widget} ${${(s.:.)widgets[$widget]}[2,3]}"
- ;;
- esac
-
- # Pass the original widget's name explicitly into the autosuggest
- # function. Use this passed in widget name to call the original
- # widget instead of relying on the $WIDGET variable being set
- # correctly. $WIDGET cannot be trusted because other plugins call
- # zle without the `-w` flag (e.g. `zle self-insert` instead of
- # `zle self-insert -w`).
- eval "_zsh_autosuggest_bound_${bind_count}_${(q)widget}() {
- _zsh_autosuggest_widget_$autosuggest_action $prefix$bind_count-${(q)widget} \$@
- }"
-
- # Create the bound widget
- zle -N -- $widget _zsh_autosuggest_bound_${bind_count}_$widget
-}
-
-# Map all configured widgets to the right autosuggest widgets
-_zsh_autosuggest_bind_widgets() {
- emulate -L zsh
-
- local widget
- local ignore_widgets
-
- ignore_widgets=(
- .\*
- _\*
- ${_ZSH_AUTOSUGGEST_BUILTIN_ACTIONS/#/autosuggest-}
- $ZSH_AUTOSUGGEST_ORIGINAL_WIDGET_PREFIX\*
- $ZSH_AUTOSUGGEST_IGNORE_WIDGETS
- )
-
- # Find every widget we might want to bind and bind it appropriately
- for widget in ${${(f)"$(builtin zle -la)"}:#${(j:|:)~ignore_widgets}}; do
- if [[ -n ${ZSH_AUTOSUGGEST_CLEAR_WIDGETS[(r)$widget]} ]]; then
- _zsh_autosuggest_bind_widget $widget clear
- elif [[ -n ${ZSH_AUTOSUGGEST_ACCEPT_WIDGETS[(r)$widget]} ]]; then
- _zsh_autosuggest_bind_widget $widget accept
- elif [[ -n ${ZSH_AUTOSUGGEST_EXECUTE_WIDGETS[(r)$widget]} ]]; then
- _zsh_autosuggest_bind_widget $widget execute
- elif [[ -n ${ZSH_AUTOSUGGEST_PARTIAL_ACCEPT_WIDGETS[(r)$widget]} ]]; then
- _zsh_autosuggest_bind_widget $widget partial_accept
- else
- # Assume any unspecified widget might modify the buffer
- _zsh_autosuggest_bind_widget $widget modify
- fi
- done
-}
-
-# Given the name of an original widget and args, invoke it, if it exists
-_zsh_autosuggest_invoke_original_widget() {
- # Do nothing unless called with at least one arg
- (( $# )) || return 0
-
- local original_widget_name="$1"
-
- shift
-
- if (( ${+widgets[$original_widget_name]} )); then
- zle $original_widget_name -- $@
- fi
-}
-
-#--------------------------------------------------------------------#
-# Highlighting #
-#--------------------------------------------------------------------#
-
-# If there was a highlight, remove it
-_zsh_autosuggest_highlight_reset() {
- typeset -g _ZSH_AUTOSUGGEST_LAST_HIGHLIGHT
-
- if [[ -n "$_ZSH_AUTOSUGGEST_LAST_HIGHLIGHT" ]]; then
- region_highlight=("${(@)region_highlight:#$_ZSH_AUTOSUGGEST_LAST_HIGHLIGHT}")
- unset _ZSH_AUTOSUGGEST_LAST_HIGHLIGHT
- fi
-}
-
-# If there's a suggestion, highlight it
-_zsh_autosuggest_highlight_apply() {
- typeset -g _ZSH_AUTOSUGGEST_LAST_HIGHLIGHT
-
- if (( $#POSTDISPLAY )); then
- typeset -g _ZSH_AUTOSUGGEST_LAST_HIGHLIGHT="$#BUFFER $(($#BUFFER + $#POSTDISPLAY)) $ZSH_AUTOSUGGEST_HIGHLIGHT_STYLE"
- region_highlight+=("$_ZSH_AUTOSUGGEST_LAST_HIGHLIGHT")
- else
- unset _ZSH_AUTOSUGGEST_LAST_HIGHLIGHT
- fi
-}
-
-#--------------------------------------------------------------------#
-# Autosuggest Widget Implementations #
-#--------------------------------------------------------------------#
-
-# Disable suggestions
-_zsh_autosuggest_disable() {
- typeset -g _ZSH_AUTOSUGGEST_DISABLED
- _zsh_autosuggest_clear
-}
-
-# Enable suggestions
-_zsh_autosuggest_enable() {
- unset _ZSH_AUTOSUGGEST_DISABLED
-
- if (( $#BUFFER )); then
- _zsh_autosuggest_fetch
- fi
-}
-
-# Toggle suggestions (enable/disable)
-_zsh_autosuggest_toggle() {
- if (( ${+_ZSH_AUTOSUGGEST_DISABLED} )); then
- _zsh_autosuggest_enable
- else
- _zsh_autosuggest_disable
- fi
-}
-
-# Clear the suggestion
-_zsh_autosuggest_clear() {
- # Remove the suggestion
- unset POSTDISPLAY
-
- _zsh_autosuggest_invoke_original_widget $@
-}
-
-# Modify the buffer and get a new suggestion
-_zsh_autosuggest_modify() {
- local -i retval
-
- # Only available in zsh >= 5.4
- local -i KEYS_QUEUED_COUNT
-
- # Save the contents of the buffer/postdisplay
- local orig_buffer="$BUFFER"
- local orig_postdisplay="$POSTDISPLAY"
-
- # Clear suggestion while waiting for next one
- unset POSTDISPLAY
-
- # Original widget may modify the buffer
- _zsh_autosuggest_invoke_original_widget $@
- retval=$?
-
- emulate -L zsh
-
- # Don't fetch a new suggestion if there's more input to be read immediately
- if (( $PENDING > 0 || $KEYS_QUEUED_COUNT > 0 )); then
- POSTDISPLAY="$orig_postdisplay"
- return $retval
- fi
-
- # Optimize if manually typing in the suggestion or if buffer hasn't changed
- if [[ "$BUFFER" = "$orig_buffer"* && "$orig_postdisplay" = "${BUFFER:$#orig_buffer}"* ]]; then
- POSTDISPLAY="${orig_postdisplay:$(($#BUFFER - $#orig_buffer))}"
- return $retval
- fi
-
- # Bail out if suggestions are disabled
- if (( ${+_ZSH_AUTOSUGGEST_DISABLED} )); then
- return $?
- fi
-
- # Get a new suggestion if the buffer is not empty after modification
- if (( $#BUFFER > 0 )); then
- if [[ -z "$ZSH_AUTOSUGGEST_BUFFER_MAX_SIZE" ]] || (( $#BUFFER <= $ZSH_AUTOSUGGEST_BUFFER_MAX_SIZE )); then
- _zsh_autosuggest_fetch
- fi
- fi
-
- return $retval
-}
-
-# Fetch a new suggestion based on what's currently in the buffer
-_zsh_autosuggest_fetch() {
- if (( ${+ZSH_AUTOSUGGEST_USE_ASYNC} )); then
- _zsh_autosuggest_async_request "$BUFFER"
- else
- local suggestion
- _zsh_autosuggest_fetch_suggestion "$BUFFER"
- _zsh_autosuggest_suggest "$suggestion"
- fi
-}
-
-# Offer a suggestion
-_zsh_autosuggest_suggest() {
- emulate -L zsh
-
- local suggestion="$1"
-
- if [[ -n "$suggestion" ]] && (( $#BUFFER )); then
- POSTDISPLAY="${suggestion#$BUFFER}"
- else
- unset POSTDISPLAY
- fi
-}
-
-# Accept the entire suggestion
-_zsh_autosuggest_accept() {
- local -i retval max_cursor_pos=$#BUFFER
-
- # When vicmd keymap is active, the cursor can't move all the way
- # to the end of the buffer
- if [[ "$KEYMAP" = "vicmd" ]]; then
- max_cursor_pos=$((max_cursor_pos - 1))
- fi
-
- # If we're not in a valid state to accept a suggestion, just run the
- # original widget and bail out
- if (( $CURSOR != $max_cursor_pos || !$#POSTDISPLAY )); then
- _zsh_autosuggest_invoke_original_widget $@
- return
- fi
-
- # Only accept if the cursor is at the end of the buffer
- # Add the suggestion to the buffer
- BUFFER="$BUFFER$POSTDISPLAY"
-
- # Remove the suggestion
- unset POSTDISPLAY
-
- # Run the original widget before manually moving the cursor so that the
- # cursor movement doesn't make the widget do something unexpected
- _zsh_autosuggest_invoke_original_widget $@
- retval=$?
-
- # Move the cursor to the end of the buffer
- if [[ "$KEYMAP" = "vicmd" ]]; then
- CURSOR=$(($#BUFFER - 1))
- else
- CURSOR=$#BUFFER
- fi
-
- return $retval
-}
-
-# Accept the entire suggestion and execute it
-_zsh_autosuggest_execute() {
- # Add the suggestion to the buffer
- BUFFER="$BUFFER$POSTDISPLAY"
-
- # Remove the suggestion
- unset POSTDISPLAY
-
- # Call the original `accept-line` to handle syntax highlighting or
- # other potential custom behavior
- _zsh_autosuggest_invoke_original_widget "accept-line"
-}
-
-# Partially accept the suggestion
-_zsh_autosuggest_partial_accept() {
- local -i retval cursor_loc
-
- # Save the contents of the buffer so we can restore later if needed
- local original_buffer="$BUFFER"
-
- # Temporarily accept the suggestion.
- BUFFER="$BUFFER$POSTDISPLAY"
-
- # Original widget moves the cursor
- _zsh_autosuggest_invoke_original_widget $@
- retval=$?
-
- # Normalize cursor location across vi/emacs modes
- cursor_loc=$CURSOR
- if [[ "$KEYMAP" = "vicmd" ]]; then
- cursor_loc=$((cursor_loc + 1))
- fi
-
- # If we've moved past the end of the original buffer
- if (( $cursor_loc > $#original_buffer )); then
- # Set POSTDISPLAY to text right of the cursor
- POSTDISPLAY="${BUFFER[$(($cursor_loc + 1)),$#BUFFER]}"
-
- # Clip the buffer at the cursor
- BUFFER="${BUFFER[1,$cursor_loc]}"
- else
- # Restore the original buffer
- BUFFER="$original_buffer"
- fi
-
- return $retval
-}
-
-() {
- typeset -ga _ZSH_AUTOSUGGEST_BUILTIN_ACTIONS
-
- _ZSH_AUTOSUGGEST_BUILTIN_ACTIONS=(
- clear
- fetch
- suggest
- accept
- execute
- enable
- disable
- toggle
- )
-
- local action
- for action in $_ZSH_AUTOSUGGEST_BUILTIN_ACTIONS modify partial_accept; do
- eval "_zsh_autosuggest_widget_$action() {
- local -i retval
-
- _zsh_autosuggest_highlight_reset
-
- _zsh_autosuggest_$action \$@
- retval=\$?
-
- _zsh_autosuggest_highlight_apply
-
- zle -R
-
- return \$retval
- }"
- done
-
- for action in $_ZSH_AUTOSUGGEST_BUILTIN_ACTIONS; do
- zle -N autosuggest-$action _zsh_autosuggest_widget_$action
- done
-}
-
-#--------------------------------------------------------------------#
-# Completion Suggestion Strategy #
-#--------------------------------------------------------------------#
-# Fetches a suggestion from the completion engine
-#
-
-_zsh_autosuggest_capture_postcompletion() {
- # Always insert the first completion into the buffer
- compstate[insert]=1
-
- # Don't list completions
- unset 'compstate[list]'
-}
-
-_zsh_autosuggest_capture_completion_widget() {
- # Add a post-completion hook to be called after all completions have been
- # gathered. The hook can modify compstate to affect what is done with the
- # gathered completions.
- local -a +h comppostfuncs
- comppostfuncs=(_zsh_autosuggest_capture_postcompletion)
-
- # Only capture completions at the end of the buffer
- CURSOR=$#BUFFER
-
- # Run the original widget wrapping `.complete-word` so we don't
- # recursively try to fetch suggestions, since our pty is forked
- # after autosuggestions is initialized.
- zle -- ${(k)widgets[(r)completion:.complete-word:_main_complete]}
-
- if is-at-least 5.0.3; then
- # Don't do any cr/lf transformations. We need to do this immediately before
- # output because if we do it in setup, onlcr will be re-enabled when we enter
- # vared in the async code path. There is a bug in zpty module in older versions
- # where the tty is not properly attached to the pty slave, resulting in stty
- # getting stopped with a SIGTTOU. See zsh-workers thread 31660 and upstream
- # commit f75904a38
- stty -onlcr -ocrnl -F /dev/tty
- fi
-
- # The completion has been added, print the buffer as the suggestion
- echo -nE - $'\0'$BUFFER$'\0'
-}
-
-zle -N autosuggest-capture-completion _zsh_autosuggest_capture_completion_widget
-
-_zsh_autosuggest_capture_setup() {
- # There is a bug in zpty module in older zsh versions by which a
- # zpty that exits will kill all zpty processes that were forked
- # before it. Here we set up a zsh exit hook to SIGKILL the zpty
- # process immediately, before it has a chance to kill any other
- # zpty processes.
- if ! is-at-least 5.4; then
- zshexit() {
- # The zsh builtin `kill` fails sometimes in older versions
- # https://unix.stackexchange.com/a/477647/156673
- kill -KILL $$ 2>&- || command kill -KILL $$
-
- # Block for long enough for the signal to come through
- sleep 1
- }
- fi
-
- # Try to avoid any suggestions that wouldn't match the prefix
- zstyle ':completion:*' matcher-list ''
- zstyle ':completion:*' path-completion false
- zstyle ':completion:*' max-errors 0 not-numeric
-
- bindkey '^I' autosuggest-capture-completion
-}
-
-_zsh_autosuggest_capture_completion_sync() {
- _zsh_autosuggest_capture_setup
-
- zle autosuggest-capture-completion
-}
-
-_zsh_autosuggest_capture_completion_async() {
- _zsh_autosuggest_capture_setup
-
- zmodload zsh/parameter 2>/dev/null || return # For `$functions`
-
- # Make vared completion work as if for a normal command line
- # https://stackoverflow.com/a/7057118/154703
- autoload +X _complete
- functions[_original_complete]=$functions[_complete]
- function _complete() {
- unset 'compstate[vared]'
- _original_complete "$@"
- }
-
- # Open zle with buffer set so we can capture completions for it
- vared 1
-}
-
-_zsh_autosuggest_strategy_completion() {
- # Reset options to defaults and enable LOCAL_OPTIONS
- emulate -L zsh
-
- # Enable extended glob for completion ignore pattern
- setopt EXTENDED_GLOB
-
- typeset -g suggestion
- local line REPLY
-
- # Exit if we don't have completions
- whence compdef >/dev/null || return
-
- # Exit if we don't have zpty
- zmodload zsh/zpty 2>/dev/null || return
-
- # Exit if our search string matches the ignore pattern
- [[ -n "$ZSH_AUTOSUGGEST_COMPLETION_IGNORE" ]] && [[ "$1" == $~ZSH_AUTOSUGGEST_COMPLETION_IGNORE ]] && return
-
- # Zle will be inactive if we are in async mode
- if zle; then
- zpty $ZSH_AUTOSUGGEST_COMPLETIONS_PTY_NAME _zsh_autosuggest_capture_completion_sync
- else
- zpty $ZSH_AUTOSUGGEST_COMPLETIONS_PTY_NAME _zsh_autosuggest_capture_completion_async "\$1"
- zpty -w $ZSH_AUTOSUGGEST_COMPLETIONS_PTY_NAME $'\t'
- fi
-
- {
- # The completion result is surrounded by null bytes, so read the
- # content between the first two null bytes.
- zpty -r $ZSH_AUTOSUGGEST_COMPLETIONS_PTY_NAME line '*'$'\0''*'$'\0'
-
- # Extract the suggestion from between the null bytes. On older
- # versions of zsh (older than 5.3), we sometimes get extra bytes after
- # the second null byte, so trim those off the end.
- # See http://www.zsh.org/mla/workers/2015/msg03290.html
- suggestion="${${(@0)line}[2]}"
- } always {
- # Destroy the pty
- zpty -d $ZSH_AUTOSUGGEST_COMPLETIONS_PTY_NAME
- }
-}
-
-#--------------------------------------------------------------------#
-# History Suggestion Strategy #
-#--------------------------------------------------------------------#
-# Suggests the most recent history item that matches the given
-# prefix.
-#
-
-_zsh_autosuggest_strategy_history() {
- # Reset options to defaults and enable LOCAL_OPTIONS
- emulate -L zsh
-
- # Enable globbing flags so that we can use (#m) and (x~y) glob operator
- setopt EXTENDED_GLOB
-
- # Escape backslashes and all of the glob operators so we can use
- # this string as a pattern to search the $history associative array.
- # - (#m) globbing flag enables setting references for match data
- # TODO: Use (b) flag when we can drop support for zsh older than v5.0.8
- local prefix="${1//(#m)[\\*?[\]<>()|^~#]/\\$MATCH}"
-
- # Get the history items that match the prefix, excluding those that match
- # the ignore pattern
- local pattern="$prefix*"
- if [[ -n $ZSH_AUTOSUGGEST_HISTORY_IGNORE ]]; then
- pattern="($pattern)~($ZSH_AUTOSUGGEST_HISTORY_IGNORE)"
- fi
-
- # Give the first history item matching the pattern as the suggestion
- # - (r) subscript flag makes the pattern match on values
- typeset -g suggestion="${history[(r)$pattern]}"
-}
-
-#--------------------------------------------------------------------#
-# Match Previous Command Suggestion Strategy #
-#--------------------------------------------------------------------#
-# Suggests the most recent history item that matches the given
-# prefix and whose preceding history item also matches the most
-# recently executed command.
-#
-# For example, suppose your history has the following entries:
-# - pwd
-# - ls foo
-# - ls bar
-# - pwd
-#
-# Given the history list above, when you type 'ls', the suggestion
-# will be 'ls foo' rather than 'ls bar' because your most recently
-# executed command (pwd) was previously followed by 'ls foo'.
-#
-# Note that this strategy won't work as expected with ZSH options that don't
-# preserve the history order such as `HIST_IGNORE_ALL_DUPS` or
-# `HIST_EXPIRE_DUPS_FIRST`.
-
-_zsh_autosuggest_strategy_match_prev_cmd() {
- # Reset options to defaults and enable LOCAL_OPTIONS
- emulate -L zsh
-
- # Enable globbing flags so that we can use (#m) and (x~y) glob operator
- setopt EXTENDED_GLOB
-
- # TODO: Use (b) flag when we can drop support for zsh older than v5.0.8
- local prefix="${1//(#m)[\\*?[\]<>()|^~#]/\\$MATCH}"
-
- # Get the history items that match the prefix, excluding those that match
- # the ignore pattern
- local pattern="$prefix*"
- if [[ -n $ZSH_AUTOSUGGEST_HISTORY_IGNORE ]]; then
- pattern="($pattern)~($ZSH_AUTOSUGGEST_HISTORY_IGNORE)"
- fi
-
- # Get all history event numbers that correspond to history
- # entries that match the pattern
- local history_match_keys
- history_match_keys=(${(k)history[(R)$~pattern]})
-
- # By default we use the first history number (most recent history entry)
- local histkey="${history_match_keys[1]}"
-
- # Get the previously executed command
- local prev_cmd="$(_zsh_autosuggest_escape_command "${history[$((HISTCMD-1))]}")"
-
- # Iterate up to the first 200 history event numbers that match $prefix
- for key in "${(@)history_match_keys[1,200]}"; do
- # Stop if we ran out of history
- [[ $key -gt 1 ]] || break
-
- # See if the history entry preceding the suggestion matches the
- # previous command, and use it if it does
- if [[ "${history[$((key - 1))]}" == "$prev_cmd" ]]; then
- histkey="$key"
- break
- fi
- done
-
- # Give back the matched history entry
- typeset -g suggestion="$history[$histkey]"
-}
-
-#--------------------------------------------------------------------#
-# Fetch Suggestion #
-#--------------------------------------------------------------------#
-# Loops through all specified strategies and returns a suggestion
-# from the first strategy to provide one.
-#
-
-_zsh_autosuggest_fetch_suggestion() {
- typeset -g suggestion
- local -a strategies
- local strategy
-
- # Ensure we are working with an array
- strategies=(${=ZSH_AUTOSUGGEST_STRATEGY})
-
- for strategy in $strategies; do
- # Try to get a suggestion from this strategy
- _zsh_autosuggest_strategy_$strategy "$1"
-
- # Ensure the suggestion matches the prefix
- [[ "$suggestion" != "$1"* ]] && unset suggestion
-
- # Break once we've found a valid suggestion
- [[ -n "$suggestion" ]] && break
- done
-}
-
-#--------------------------------------------------------------------#
-# Async #
-#--------------------------------------------------------------------#
-
-_zsh_autosuggest_async_request() {
- zmodload zsh/system 2>/dev/null # For `$sysparams`
-
- typeset -g _ZSH_AUTOSUGGEST_ASYNC_FD _ZSH_AUTOSUGGEST_CHILD_PID
-
- # If we've got a pending request, cancel it
- if [[ -n "$_ZSH_AUTOSUGGEST_ASYNC_FD" ]] && { true <&$_ZSH_AUTOSUGGEST_ASYNC_FD } 2>/dev/null; then
- # Close the file descriptor and remove the handler
- exec {_ZSH_AUTOSUGGEST_ASYNC_FD}<&-
- zle -F $_ZSH_AUTOSUGGEST_ASYNC_FD
-
- # We won't know the pid unless the user has zsh/system module installed
- if [[ -n "$_ZSH_AUTOSUGGEST_CHILD_PID" ]]; then
- # Zsh will make a new process group for the child process only if job
- # control is enabled (MONITOR option)
- if [[ -o MONITOR ]]; then
- # Send the signal to the process group to kill any processes that may
- # have been forked by the suggestion strategy
- kill -TERM -$_ZSH_AUTOSUGGEST_CHILD_PID 2>/dev/null
- else
- # Kill just the child process since it wasn't placed in a new process
- # group. If the suggestion strategy forked any child processes they may
- # be orphaned and left behind.
- kill -TERM $_ZSH_AUTOSUGGEST_CHILD_PID 2>/dev/null
- fi
- fi
- fi
-
- # Fork a process to fetch a suggestion and open a pipe to read from it
- exec {_ZSH_AUTOSUGGEST_ASYNC_FD}< <(
- # Tell parent process our pid
- echo $sysparams[pid]
-
- # Fetch and print the suggestion
- local suggestion
- _zsh_autosuggest_fetch_suggestion "$1"
- echo -nE "$suggestion"
- )
-
- # There's a weird bug here where ^C stops working unless we force a fork
- # See https://github.com/zsh-users/zsh-autosuggestions/issues/364
- autoload -Uz is-at-least
- is-at-least 5.8 || command true
-
- # Read the pid from the child process
- read _ZSH_AUTOSUGGEST_CHILD_PID <&$_ZSH_AUTOSUGGEST_ASYNC_FD
-
- # When the fd is readable, call the response handler
- zle -F "$_ZSH_AUTOSUGGEST_ASYNC_FD" _zsh_autosuggest_async_response
-}
-
-# Called when new data is ready to be read from the pipe
-# First arg will be fd ready for reading
-# Second arg will be passed in case of error
-_zsh_autosuggest_async_response() {
- emulate -L zsh
-
- local suggestion
-
- if [[ -z "$2" || "$2" == "hup" ]]; then
- # Read everything from the fd and give it as a suggestion
- IFS='' read -rd '' -u $1 suggestion
- zle autosuggest-suggest -- "$suggestion"
-
- # Close the fd
- exec {1}<&-
- fi
-
- # Always remove the handler
- zle -F "$1"
-}
-
-#--------------------------------------------------------------------#
-# Start #
-#--------------------------------------------------------------------#
-
-# Start the autosuggestion widgets
-_zsh_autosuggest_start() {
- # By default we re-bind widgets on every precmd to ensure we wrap other
- # wrappers. Specifically, highlighting breaks if our widgets are wrapped by
- # zsh-syntax-highlighting widgets. This also allows modifications to the
- # widget list variables to take effect on the next precmd. However this has
- # a decent performance hit, so users can set ZSH_AUTOSUGGEST_MANUAL_REBIND
- # to disable the automatic re-binding.
- if (( ${+ZSH_AUTOSUGGEST_MANUAL_REBIND} )); then
- add-zsh-hook -d precmd _zsh_autosuggest_start
- fi
-
- _zsh_autosuggest_bind_widgets
-}
-
-# Mark for auto-loading the functions that we use
-autoload -Uz add-zsh-hook is-at-least
-
-# Automatically enable asynchronous mode in newer versions of zsh. Disable for
-# older versions because there is a bug when using async mode where ^C does not
-# work immediately after fetching a suggestion.
-# See https://github.com/zsh-users/zsh-autosuggestions/issues/364
-if is-at-least 5.0.8; then
- typeset -g ZSH_AUTOSUGGEST_USE_ASYNC=
-fi
-
-# Start the autosuggestion widgets on the next precmd
-add-zsh-hook precmd _zsh_autosuggest_start