#!/usr/bin/env zsh ############################################################################## # # Copyright (c) 2009 Peter Stephenson # Copyright (c) 2011 Guido van Steen # Copyright (c) 2011 Suraj N. Kurapati # Copyright (c) 2011 Sorin Ionescu # Copyright (c) 2011 Vincent Guerci # Copyright (c) 2016 Geza Lore # Copyright (c) 2017 Bengt Brodersen # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following # disclaimer in the documentation and/or other materials provided # with the distribution. # # * Neither the name of the FIZSH nor the names of its contributors # may be used to endorse or promote products derived from this # software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE # POSSIBILITY OF SUCH DAMAGE. # ############################################################################## #----------------------------------------------------------------------------- # declare global configuration variables #----------------------------------------------------------------------------- : ${HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND='bg=magenta,fg=white,bold'} : ${HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND='bg=red,fg=white,bold'} : ${HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS='i'} : ${HISTORY_SUBSTRING_SEARCH_ENSURE_UNIQUE=''} : ${HISTORY_SUBSTRING_SEARCH_FUZZY=''} : ${HISTORY_SUBSTRING_SEARCH_PREFIXED=''} #----------------------------------------------------------------------------- # declare internal global variables #----------------------------------------------------------------------------- typeset -g BUFFER MATCH MBEGIN MEND CURSOR typeset -g _history_substring_search_refresh_display typeset -g _history_substring_search_query_highlight typeset -g _history_substring_search_result typeset -g _history_substring_search_query typeset -g -a _history_substring_search_query_parts typeset -g -a _history_substring_search_raw_matches typeset -g -i _history_substring_search_raw_match_index typeset -g -a _history_substring_search_matches typeset -g -i _history_substring_search_match_index typeset -g -A _history_substring_search_unique_filter typeset -g -i _history_substring_search_zsh_5_9 #----------------------------------------------------------------------------- # the main ZLE widgets #----------------------------------------------------------------------------- history-substring-search-up() { _history-substring-search-begin _history-substring-search-up-history || _history-substring-search-up-buffer || _history-substring-search-up-search _history-substring-search-end } history-substring-search-down() { _history-substring-search-begin _history-substring-search-down-history || _history-substring-search-down-buffer || _history-substring-search-down-search _history-substring-search-end } zle -N history-substring-search-up zle -N history-substring-search-down #----------------------------------------------------------------------------- # implementation details #----------------------------------------------------------------------------- zmodload -F zsh/parameter autoload -Uz is-at-least if is-at-least 5.9 $ZSH_VERSION; then _history_substring_search_zsh_5_9=1 fi # # We have to "override" some keys and widgets if the # zsh-syntax-highlighting plugin has not been loaded: # # https://github.com/nicoulaj/zsh-syntax-highlighting # if [[ $+functions[_zsh_highlight] -eq 0 ]]; then # # Dummy implementation of _zsh_highlight() that # simply removes any existing highlights when the # user inserts printable characters into $BUFFER. # _zsh_highlight() { if [[ $KEYS == [[:print:]] ]]; then region_highlight=() fi } # # Check if $1 denotes the name of a callable function, i.e. it is fully # defined or it is marked for autoloading and autoloading it at the first # call to it will succeed. In particular, if $1 has been marked for # autoloading but is not available in $fpath, then it will return 1 (false). # # This is based on the zsh-syntax-highlighting plugin. # _history-substring-search-function-callable() { if (( ${+functions[$1]} )) && ! [[ "$functions[$1]" == *"builtin autoload -X"* ]]; then return 0 # already fully loaded else # "$1" is either an autoload stub, or not a function at all. # We expect 'autoload +X' to return non-zero if it fails to fully load # the function. ( autoload -U +X -- "$1" 2>/dev/null ) return $? fi } # # The zsh-syntax-highlighting plugin uses zle-line-pre-redraw hook instead # of the legacy "bind all widgets" if 1) zsh has the memo= feature (added in # version 5.9) and 2) add-zle-hook-widget is available. # if [[ $_history_substring_search_zsh_5_9 -eq 1 ]] && _history-substring-search-function-callable add-zle-hook-widget; then # # The following code is based on the zsh-syntax-highlighting plugin. # autoload -U add-zle-hook-widget _history-substring-search-zle-line-finish() { # # Reset $WIDGET since the 'main' highlighter depends on it. # # Since $WIDGET is declared by zle as read-only in this function's scope, # a nested function is required in order to shadow its built-in value; # see "User-defined widgets" in zshall. # () { local -h -r WIDGET=zle-line-finish _zsh_highlight } } _history-substring-search-zle-line-pre-redraw() { # # If the zsh-syntax-highlighting plugin has been loaded (after our plugin # plugin, otherwise this hook wouldn't be called), remove our hooks. # if [[ $+ZSH_HIGHLIGHT_VERSION -eq 1 ]]; then autoload -U add-zle-hook-widget add-zle-hook-widget -d zle-line-pre-redraw _history-substring-search-zle-line-pre-redraw add-zle-hook-widget -d zle-line-finish _history-substring-search-zle-line-finish return 0 fi # # Set $? to 0 for _zsh_highlight. Without this, subsequent # zle-line-pre-redraw hooks won't run, since add-zle-hook-widget happens to # call us with $? == 1 in the common case. # true && _zsh_highlight "$@" } if [[ -o zle ]]; then add-zle-hook-widget zle-line-pre-redraw _history-substring-search-zle-line-pre-redraw add-zle-hook-widget zle-line-finish _history-substring-search-zle-line-finish fi else # # The following snippet was taken from the zsh-syntax-highlighting project: # https://github.com/zsh-users/zsh-syntax-highlighting/blob/56b134f5d62ae3d4e66c7f52bd0cc2595f9b305b/zsh-syntax-highlighting.zsh#L126-161 # # SPDX-SnippetBegin # SPDX-License-Identifier: BSD-3-Clause # SPDX-SnippetCopyrightText: 2010-2011 zsh-syntax-highlighting contributors #--------------8<-------------------8<-------------------8<----------------- # Rebind all ZLE widgets to make them invoke _zsh_highlights. _zsh_highlight_bind_widgets() { # Load ZSH module zsh/zleparameter, needed to override user defined widgets. zmodload zsh/zleparameter 2>/dev/null || { echo 'zsh-syntax-highlighting: failed loading zsh/zleparameter.' >&2 return 1 } # Override ZLE widgets to make them invoke _zsh_highlight. local cur_widget for cur_widget in ${${(f)"$(builtin zle -la)"}:#(.*|_*|orig-*|run-help|which-command|beep|yank*)}; do case $widgets[$cur_widget] in # Already rebound event: do nothing. user:$cur_widget|user:_zsh_highlight_widget_*);; # User defined widget: override and rebind old one with prefix "orig-". user:*) eval "zle -N orig-$cur_widget ${widgets[$cur_widget]#*:}; \ _zsh_highlight_widget_$cur_widget() { builtin zle orig-$cur_widget -- \"\$@\" && _zsh_highlight }; \ zle -N $cur_widget _zsh_highlight_widget_$cur_widget";; # Completion widget: override and rebind old one with prefix "orig-". completion:*) eval "zle -C orig-$cur_widget ${${widgets[$cur_widget]#*:}/:/ }; \ _zsh_highlight_widget_$cur_widget() { builtin zle orig-$cur_widget -- \"\$@\" && _zsh_highlight }; \ zle -N $cur_widget _zsh_highlight_widget_$cur_widget";; # Builtin widget: override and make it call the builtin ".widget". builtin) eval "_zsh_highlight_widget_$cur_widget() { builtin zle .$cur_widget -- \"\$@\" && _zsh_highlight }; \ zle -N $cur_widget _zsh_highlight_widget_$cur_widget";; # Default: unhandled case. *) echo "zsh-syntax-highlighting: unhandled ZLE widget '$cur_widget'" >&2 ;; esac done } #-------------->8------------------->8------------------->8----------------- # SPDX-SnippetEnd _zsh_highlight_bind_widgets fi unfunction _history-substring-search-function-callable fi _history-substring-search-begin() { setopt localoptions extendedglob _history_substring_search_refresh_display= _history_substring_search_query_highlight= # # If the buffer is the same as the previously displayed history substring # search result, then just keep stepping through the match list. Otherwise # start a new search. # if [[ -n $BUFFER && $BUFFER == ${_history_substring_search_result:-} ]]; then return; fi # # Clear the previous result. # _history_substring_search_result='' if [[ -z $BUFFER ]]; then # # If the buffer is empty, we will just act like up-history/down-history # in ZSH, so we do not need to actually search the history. This should # speed things up a little. # _history_substring_search_query= _history_substring_search_query_parts=() _history_substring_search_raw_matches=() else # # For the purpose of highlighting we keep a copy of the original # query string. # _history_substring_search_query=$BUFFER # # compose search pattern # if [[ -n $HISTORY_SUBSTRING_SEARCH_FUZZY ]]; then # # `=` split string in arguments # _history_substring_search_query_parts=(${=_history_substring_search_query}) else _history_substring_search_query_parts=(${==_history_substring_search_query}) fi # # Escape and join query parts with wildcard character '*' as seperator # `(j:CHAR:)` join array to string with CHAR as seperator # local search_pattern="${(j:*:)_history_substring_search_query_parts[@]//(#m)[\][()|\\*?#<>~^]/\\$MATCH}*" # # Support anchoring history search to the beginning of the command # if [[ -z $HISTORY_SUBSTRING_SEARCH_PREFIXED ]]; then search_pattern="*${search_pattern}" fi # # Find all occurrences of the search pattern in the history file. # # (k) returns the "keys" (history index numbers) instead of the values # (R) returns values in reverse older, so the index of the youngest # matching history entry is at the head of the list. # _history_substring_search_raw_matches=(${(k)history[(R)(#$HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS)${search_pattern}]}) fi # # In order to stay as responsive as possible, we will process the raw # matches lazily (when the user requests the next match) to choose items # that need to be displayed to the user. # _history_substring_search_raw_match_index holds the index of the last # unprocessed entry in _history_substring_search_raw_matches. Any items # that need to be displayed will be added to # _history_substring_search_matches. # # We use an associative array (_history_substring_search_unique_filter) as # a 'set' data structure to ensure uniqueness of the results if desired. # If an entry (key) is in the set (non-empty value), then we have already # added that entry to _history_substring_search_matches. # _history_substring_search_raw_match_index=0 _history_substring_search_matches=() _history_substring_search_unique_filter=() # # If $_history_substring_search_match_index is equal to # $#_history_substring_search_matches + 1, this indicates that we # are beyond the end of $_history_substring_search_matches and that we # have also processed all entries in # _history_substring_search_raw_matches. # # If $#_history_substring_search_match_index is equal to 0, this indicates # that we are beyond the beginning of $_history_substring_search_matches. # # If we have initially pressed "up" we have to initialize # $_history_substring_search_match_index to 0 so that it will be # incremented to 1. # # If we have initially pressed "down" we have to initialize # $_history_substring_search_match_index to 1 so that it will be # decremented to 0. # if [[ $WIDGET == history-substring-search-down ]]; then _history_substring_search_match_index=1 else _history_substring_search_match_index=0 fi } _history-substring-search-end() { setopt localoptions extendedglob local highlight_memo= _history_substring_search_result=$BUFFER if [[ $_history_substring_search_zsh_5_9 -eq 1 ]]; then highlight_memo='memo=history-substring-search' fi # the search was successful so display the result properly by clearing away # existing highlights and moving the cursor to the end of the result buffer if [[ $_history_substring_search_refresh_display -eq 1 ]]; then if [[ -n $highlight_memo ]]; then region_highlight=( "${(@)region_highlight:#*${highlight_memo}*}" ) else region_highlight=() fi CURSOR=${#BUFFER} fi # highlight command line using zsh-syntax-highlighting _zsh_highlight # highlight the search query inside the command line if [[ -n $_history_substring_search_query_highlight ]]; then # highlight first matching query parts local highlight_start_index=0 local highlight_end_index=0 local query_part for query_part in $_history_substring_search_query_parts; do local escaped_query_part=${query_part//(#m)[\][()|\\*?#<>~^]/\\$MATCH} # (i) get index of pattern local query_part_match_index="${${BUFFER:$highlight_start_index}[(i)(#$HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS)${escaped_query_part}]}" if [[ $query_part_match_index -le ${#BUFFER:$highlight_start_index} ]]; then highlight_start_index=$(( $highlight_start_index + $query_part_match_index )) highlight_end_index=$(( $highlight_start_index + ${#query_part} )) region_highlight+=( "$(($highlight_start_index - 1)) $(($highlight_end_index - 1)) ${_history_substring_search_query_highlight}${highlight_memo:+,$highlight_memo}" ) fi done fi # For debugging purposes: # zle -R "mn: "$_history_substring_search_match_index" m#: "${#_history_substring_search_matches} # read -k -t 200 && zle -U $REPLY # # When this function returns, z-sy-h runs its line-pre-redraw hook. It has no # logic for determining highlight priority, when two different memo= marked # region highlights overlap; instead, it always prioritises itself. Below is # a workaround for dealing with it. # if [[ $_history_substring_search_zsh_5_9 -eq 1 ]]; then zle -R # # After line redraw with desired highlight, wait for timeout or user input # before removing search highlight and exiting. This ensures no highlights # are left lingering after search is finished. # read -k -t ${HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_TIMEOUT:-1} && zle -U $REPLY region_highlight=( "${(@)region_highlight:#*${highlight_memo}*}" ) fi # Exit successfully from the history-substring-search-* widgets. return 0 } _history-substring-search-up-buffer() { # # Check if the UP arrow was pressed to move the cursor within a multi-line # buffer. This amounts to three tests: # # 1. $#buflines -gt 1. # # 2. $CURSOR -ne $#BUFFER. # # 3. Check if we are on the first line of the current multi-line buffer. # If so, pressing UP would amount to leaving the multi-line buffer. # # We check this by adding an extra "x" to $LBUFFER, which makes # sure that xlbuflines is always equal to the number of lines # until $CURSOR (including the line with the cursor on it). # local buflines XLBUFFER xlbuflines buflines=(${(f)BUFFER}) XLBUFFER=$LBUFFER"x" xlbuflines=(${(f)XLBUFFER}) if [[ $#buflines -gt 1 && $CURSOR -ne $#BUFFER && $#xlbuflines -ne 1 ]]; then zle up-line-or-history return 0 fi return 1 } _history-substring-search-down-buffer() { # # Check if the DOWN arrow was pressed to move the cursor within a multi-line # buffer. This amounts to three tests: # # 1. $#buflines -gt 1. # # 2. $CURSOR -ne $#BUFFER. # # 3. Check if we are on the last line of the current multi-line buffer. # If so, pressing DOWN would amount to leaving the multi-line buffer. # # We check this by adding an extra "x" to $RBUFFER, which makes # sure that xrbuflines is always equal to the number of lines # from $CURSOR (including the line with the cursor on it). # local buflines XRBUFFER xrbuflines buflines=(${(f)BUFFER}) XRBUFFER="x"$RBUFFER xrbuflines=(${(f)XRBUFFER}) if [[ $#buflines -gt 1 && $CURSOR -ne $#BUFFER && $#xrbuflines -ne 1 ]]; then zle down-line-or-history return 0 fi return 1 } _history-substring-search-up-history() { # # Behave like up in ZSH, except clear the $BUFFER # when beginning of history is reached like in Fish. # if [[ -z $_history_substring_search_query ]]; then # we have reached the absolute top of history if [[ $HISTNO -eq 1 ]]; then BUFFER= # going up from somewhere below the top of history else zle up-line-or-history fi return 0 fi return 1 } _history-substring-search-down-history() { # # Behave like down-history in ZSH, except clear the # $BUFFER when end of history is reached like in Fish. # if [[ -z $_history_substring_search_query ]]; then # going down from the absolute top of history if [[ $HISTNO -eq 1 && -z $BUFFER ]]; then BUFFER=${history[1]} _history_substring_search_refresh_display=1 # going down from somewhere above the bottom of history else zle down-line-or-history fi return 0 fi return 1 } _history_substring_search_process_raw_matches() { # # Process more outstanding raw matches and append any matches that need to # be displayed to the user to _history_substring_search_matches. # Return whether there were any more results appended. # # # While we have more raw matches. Process them to see if there are any more # matches that need to be displayed to the user. # while [[ $_history_substring_search_raw_match_index -lt $#_history_substring_search_raw_matches ]]; do # # Move on to the next raw entry and get its history index. # _history_substring_search_raw_match_index+=1 local index=${_history_substring_search_raw_matches[$_history_substring_search_raw_match_index]} # # If HISTORY_SUBSTRING_SEARCH_ENSURE_UNIQUE is set to a non-empty value, # then ensure that only unique matches are presented to the user. # When HIST_IGNORE_ALL_DUPS is set, ZSH already ensures a unique history, # so in this case we do not need to do anything. # if [[ ! -o HIST_IGNORE_ALL_DUPS && -n $HISTORY_SUBSTRING_SEARCH_ENSURE_UNIQUE ]]; then # # Get the actual history entry at the new index, and check if we have # already added it to _history_substring_search_matches. # local entry=${history[$index]} if [[ -z ${_history_substring_search_unique_filter[$entry]} ]]; then # # This is a new unique entry. Add it to the filter and append the # index to _history_substring_search_matches. # _history_substring_search_unique_filter[$entry]=1 _history_substring_search_matches+=($index) # # Indicate that we did find a match. # return 0 fi else # # Just append the new history index to the processed matches. # _history_substring_search_matches+=($index) # # Indicate that we did find a match. # return 0 fi done # # We are beyond the end of the list of raw matches. Indicate that no # more matches are available. # return 1 } _history-substring-search-has-next() { # # Predicate function that returns whether any more older matches are # available. # if [[ $_history_substring_search_match_index -lt $#_history_substring_search_matches ]]; then # # We did not reach the end of the processed list, so we do have further # matches. # return 0 else # # We are at the end of the processed list. Try to process further # unprocessed matches. _history_substring_search_process_raw_matches # returns whether any more matches were available, so just return # that result. # _history_substring_search_process_raw_matches return $? fi } _history-substring-search-has-prev() { # # Predicate function that returns whether any more younger matches are # available. # if [[ $_history_substring_search_match_index -gt 1 ]]; then # # We did not reach the beginning of the processed list, so we do have # further matches. # return 0 else # # We are at the beginning of the processed list. We do not have any more # matches. # return 1 fi } _history-substring-search-found() { # # A match is available. The index of the match is held in # $_history_substring_search_match_index # # 1. Make $BUFFER equal to the matching history entry. # # 2. Use $HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND # to highlight the current buffer. # BUFFER=$history[$_history_substring_search_matches[$_history_substring_search_match_index]] _history_substring_search_query_highlight=$HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND } _history-substring-search-not-found() { # # No more matches are available. # # 1. Make $BUFFER equal to $_history_substring_search_query so the user can # revise it and search again. # # 2. Use $HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND # to highlight the current buffer. # BUFFER=$_history_substring_search_query _history_substring_search_query_highlight=$HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND } _history-substring-search-up-search() { _history_substring_search_refresh_display=1 # # Select history entry during history-substring-down-search: # # The following variables have been initialized in # _history-substring-search-up/down-search(): # # $_history_substring_search_matches is the current list of matches that # need to be displayed to the user. # $_history_substring_search_match_index is the index of the current match # that is being displayed to the user. # # The range of values that $_history_substring_search_match_index can take # is: [0, $#_history_substring_search_matches + 1]. A value of 0 # indicates that we are beyond the beginning of # $_history_substring_search_matches. A value of # $#_history_substring_search_matches + 1 indicates that we are beyond # the end of $_history_substring_search_matches and that we have also # processed all entries in _history_substring_search_raw_matches. # # If $_history_substring_search_match_index equals # $#_history_substring_search_matches and # $_history_substring_search_raw_match_index is not greater than # $#_history_substring_search_raw_matches, then we need to further process # $_history_substring_search_raw_matches to see if there are any more # entries that need to be displayed to the user. # # In _history-substring-search-up-search() the initial value of # $_history_substring_search_match_index is 0. This value is set in # _history-substring-search-begin(). _history-substring-search-up-search() # will initially increment it to 1. # if [[ $_history_substring_search_match_index -gt $#_history_substring_search_matches ]]; then # # We are beyond the end of $_history_substring_search_matches. This # can only happen if we have also exhausted the unprocessed matches in # _history_substring_search_raw_matches. # # 1. Update display to indicate search not found. # _history-substring-search-not-found return fi if _history-substring-search-has-next; then # # We do have older matches. # # 1. Move index to point to the next match. # 2. Update display to indicate search found. # _history_substring_search_match_index+=1 _history-substring-search-found else # # We do not have older matches. # # 1. Move the index beyond the end of # _history_substring_search_matches. # 2. Update display to indicate search not found. # _history_substring_search_match_index+=1 _history-substring-search-not-found fi # # When HIST_FIND_NO_DUPS is set, meaning that only unique command lines from # history should be matched, make sure the new and old results are different. # # However, if the HIST_IGNORE_ALL_DUPS shell option, or # HISTORY_SUBSTRING_SEARCH_ENSURE_UNIQUE is set, then we already have a # unique history, so in this case we do not need to do anything. # if [[ -o HIST_IGNORE_ALL_DUPS || -n $HISTORY_SUBSTRING_SEARCH_ENSURE_UNIQUE ]]; then return fi if [[ -o HIST_FIND_NO_DUPS && $BUFFER == $_history_substring_search_result ]]; then # # Repeat the current search so that a different (unique) match is found. # _history-substring-search-up-search fi } _history-substring-search-down-search() { _history_substring_search_refresh_display=1 # # Select history entry during history-substring-down-search: # # The following variables have been initialized in # _history-substring-search-up/down-search(): # # $_history_substring_search_matches is the current list of matches that # need to be displayed to the user. # $_history_substring_search_match_index is the index of the current match # that is being displayed to the user. # # The range of values that $_history_substring_search_match_index can take # is: [0, $#_history_substring_search_matches + 1]. A value of 0 # indicates that we are beyond the beginning of # $_history_substring_search_matches. A value of # $#_history_substring_search_matches + 1 indicates that we are beyond # the end of $_history_substring_search_matches and that we have also # processed all entries in _history_substring_search_raw_matches. # # In _history-substring-search-down-search() the initial value of # $_history_substring_search_match_index is 1. This value is set in # _history-substring-search-begin(). _history-substring-search-down-search() # will initially decrement it to 0. # if [[ $_history_substring_search_match_index -lt 1 ]]; then # # We are beyond the beginning of $_history_substring_search_matches. # # 1. Update display to indicate search not found. # _history-substring-search-not-found return fi if _history-substring-search-has-prev; then # # We do have younger matches. # # 1. Move index to point to the previous match. # 2. Update display to indicate search found. # _history_substring_search_match_index+=-1 _history-substring-search-found else # # We do not have younger matches. # # 1. Move the index beyond the beginning of # _history_substring_search_matches. # 2. Update display to indicate search not found. # _history_substring_search_match_index+=-1 _history-substring-search-not-found fi # # When HIST_FIND_NO_DUPS is set, meaning that only unique command lines from # history should be matched, make sure the new and old results are different. # # However, if the HIST_IGNORE_ALL_DUPS shell option, or # HISTORY_SUBSTRING_SEARCH_ENSURE_UNIQUE is set, then we already have a # unique history, so in this case we do not need to do anything. # if [[ -o HIST_IGNORE_ALL_DUPS || -n $HISTORY_SUBSTRING_SEARCH_ENSURE_UNIQUE ]]; then return fi if [[ -o HIST_FIND_NO_DUPS && $BUFFER == $_history_substring_search_result ]]; then # # Repeat the current search so that a different (unique) match is found. # _history-substring-search-down-search fi } # -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*- # vim: ft=zsh sw=2 ts=2 et