diff options
Diffstat (limited to 'plugins/history-substring-search')
3 files changed, 661 insertions, 0 deletions
diff --git a/plugins/history-substring-search/README b/plugins/history-substring-search/README new file mode 100644 index 000000000..be11adf76 --- /dev/null +++ b/plugins/history-substring-search/README @@ -0,0 +1,7 @@ +To activate this script, load it into an interactive ZSH session: + + % source history-substring-search.zsh + +See the "history-substring-search.zsh" file for more information: + + % sed -n '2,/^$/s/^#//p' history-substring-search.zsh | more diff --git a/plugins/history-substring-search/history-substring-search.plugin.zsh b/plugins/history-substring-search/history-substring-search.plugin.zsh new file mode 100644 index 000000000..99a5922c5 --- /dev/null +++ b/plugins/history-substring-search/history-substring-search.plugin.zsh @@ -0,0 +1,12 @@ +# This file integrates the history-substring-search script into oh-my-zsh. + +source "$ZSH/plugins/history-substring-search/history-substring-search.zsh" + +if test "$CASE_SENSITIVE" = true; then + unset HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS +fi + +if test "$DISABLE_COLOR" = true; then + unset HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND + unset HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND +fi diff --git a/plugins/history-substring-search/history-substring-search.zsh b/plugins/history-substring-search/history-substring-search.zsh new file mode 100644 index 000000000..53f707c79 --- /dev/null +++ b/plugins/history-substring-search/history-substring-search.zsh @@ -0,0 +1,642 @@ +#!/usr/bin/env zsh +# +# This is a clean-room implementation of the Fish[1] shell's history search +# feature, where you can type in any part of any previously entered command +# and press the UP and DOWN arrow keys to cycle through the matching commands. +# +#----------------------------------------------------------------------------- +# Usage +#----------------------------------------------------------------------------- +# +# 1. Load this script into your interactive ZSH session: +# +# % source history-substring-search.zsh +# +# If you want to use the zsh-syntax-highlighting[6] script along with this +# script, then make sure that you load it *before* you load this script: +# +# % source zsh-syntax-highlighting.zsh +# % source history-substring-search.zsh +# +# 2. Type any part of any previous command and then: +# +# * Press the UP arrow key to select the nearest command that (1) contains +# your query and (2) is older than the current command in the command +# history. +# +# * Press the DOWN arrow key to select the nearest command that (1) +# contains your query and (2) is newer than the current command in the +# command history. +# +# * Press ^U (the Control and U keys simultaneously) to abort the search. +# +# 3. If a matching command spans more than one line of text, press the LEFT +# arrow key to move the cursor away from the end of the command, and then: +# +# * Press the UP arrow key to move the cursor to the line above. When the +# cursor reaches the first line of the command, pressing the UP arrow +# key again will cause this script to perform another search. +# +# * Press the DOWN arrow key to move the cursor to the line below. When +# the cursor reaches the last line of the command, pressing the DOWN +# arrow key again will cause this script to perform another search. +# +#----------------------------------------------------------------------------- +# Configuration +#----------------------------------------------------------------------------- +# +# This script defines the following global variables. You may override their +# default values only after having loaded this script into your ZSH session. +# +# * HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND is a global variable that defines +# how the query should be highlighted inside a matching command. Its default +# value causes this script to highlight using bold, white text on a magenta +# background. See the "Character Highlighting" section in the zshzle(1) man +# page to learn about the kinds of values you may assign to this variable. +# +# * HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND is a global variable that +# defines how the query should be highlighted when no commands in the +# history match it. Its default value causes this script to highlight using +# bold, white text on a red background. See the "Character Highlighting" +# section in the zshzle(1) man page to learn about the kinds of values you +# may assign to this variable. +# +# * HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS is a global variable that defines +# how the command history will be searched for your query. Its default value +# causes this script to perform a case-insensitive search. See the "Globbing +# Flags" section in the zshexpn(1) man page to learn about the kinds of +# values you may assign to this variable. +# +#----------------------------------------------------------------------------- +# History +#----------------------------------------------------------------------------- +# +# This script was originally written by Peter Stephenson[2], who published it +# to the ZSH users mailing list (thereby making it public domain) in September +# 2009. It was later revised by Guido van Steen and released under the BSD +# license (see below) as part of the fizsh[3] project in January 2011. +# +# It was later extracted from fizsh[3] release 1.0.1, refactored heavily, and +# repackaged as both an oh-my-zsh plugin[4] and as an independently loadable +# ZSH script[5] by Suraj N. Kurapati in 2011. +# +# It was further developed[4] by Guido van Steen, Suraj N. Kurapati, Sorin +# Ionescu, and Vincent Guerci in 2011. +# +# [1]: http://fishshell.com +# [2]: http://www.zsh.org/mla/users/2009/msg00818.html +# [3]: http://sourceforge.net/projects/fizsh/ +# [4]: https://github.com/robbyrussell/oh-my-zsh/pull/215 +# [5]: https://github.com/sunaku/zsh-history-substring-search +# [6]: https://github.com/nicoulaj/zsh-syntax-highlighting +# +############################################################################## +# +# 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 +# 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. +# +############################################################################## + +#----------------------------------------------------------------------------- +# 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' + +#----------------------------------------------------------------------------- +# the main ZLE widgets +#----------------------------------------------------------------------------- + +function 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 +} + +function 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 + +bindkey '\e[A' history-substring-search-up +bindkey '\e[B' history-substring-search-down + +#----------------------------------------------------------------------------- +# implementation details +#----------------------------------------------------------------------------- + +setopt extendedglob +zmodload -F zsh/parameter + +# +# 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 existing highlights + # + function _zsh_highlight() { + region_highlight=() + } + + # + # Remove existing highlights when the user + # inserts printable characters into $BUFFER + # + function ordinary-key-press() { + if [[ $KEYS == [[:print:]] ]]; then + region_highlight=() + fi + zle .self-insert + } + zle -N self-insert ordinary-key-press + + # + # Override ZLE widgets to invoke _zsh_highlight() + # + # https://github.com/nicoulaj/zsh-syntax-highlighting/blob/ + # bb7fcb79fad797a40077bebaf6f4e4a93c9d8163/zsh-syntax-highlighting.zsh#L121 + # + #--------------8<-------------------8<-------------------8<----------------- + # + # Copyright (c) 2010-2011 zsh-syntax-highlighting contributors + # 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 zsh-syntax-highlighting contributors 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. + + # 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, exiting.' >&2 + return -1 + } + + # Override ZLE widgets to make them invoke _zsh_highlight. + for event in ${${(f)"$(zle -la)"}:#(_*|orig-*|.run-help|.which-command)}; do + if [[ "$widgets[$event]" == completion:* ]]; then + eval "zle -C orig-$event ${${${widgets[$event]}#*:}/:/ } ; $event() { builtin zle orig-$event && _zsh_highlight } ; zle -N $event" + else + case $event in + accept-and-menu-complete) + eval "$event() { builtin zle .$event && _zsh_highlight } ; zle -N $event" + ;; + + # The following widgets should NOT remove any previously + # applied highlighting. Therefore we do not remap them. + .forward-char|.backward-char|.up-line-or-history|.down-line-or-history) + ;; + + .*) + clean_event=$event[2,${#event}] # Remove the leading dot in the event name + case ${widgets[$clean_event]-} in + (completion|user):*) + ;; + *) + eval "$clean_event() { builtin zle $event && _zsh_highlight } ; zle -N $clean_event" + ;; + esac + ;; + *) + ;; + esac + fi + done + unset event clean_event + #-------------->8------------------->8------------------->8----------------- +fi + +function _history-substring-search-begin() { + _history_substring_search_move_cursor_eol=false + _history_substring_search_query_highlight= + + # + # Continue using the previous $_history_substring_search_result by default, + # unless the current query was cleared or a new/different query was entered. + # + if [[ -z $BUFFER || $BUFFER != $_history_substring_search_result ]]; then + # + # For the purpose of highlighting we will also keep + # a version without doubly-escaped meta characters. + # + _history_substring_search_query=$BUFFER + + # + # $BUFFER contains the text that is in the command-line currently. + # we put an extra "\\" before meta characters such as "\(" and "\)", + # so that they become "\\\(" and "\\\)". + # + _history_substring_search_query_escaped=${BUFFER//(#m)[\][()|\\*?#<>~^]/\\$MATCH} + + # + # Find all occurrences of the search query in the history file. + # + # (k) turns it an array of line numbers. + # + # (on) seems to remove duplicates, which are default + # options. They can be turned off by (ON). + # + _history_substring_search_matches=(${(kon)history[(R)(#$HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS)*${_history_substring_search_query_escaped}*]}) + + # + # Define the range of values that $_history_substring_search_match_index + # can take: [0, $_history_substring_search_matches_count_plus]. + # + _history_substring_search_matches_count=$#_history_substring_search_matches + _history_substring_search_matches_count_plus=$(( _history_substring_search_matches_count + 1 )) + _history_substring_search_matches_count_sans=$(( _history_substring_search_matches_count - 1 )) + + # + # If $_history_substring_search_match_index is equal to + # $_history_substring_search_matches_count_plus, this indicates that we + # are beyond the beginning of $_history_substring_search_matches. + # + # If $_history_substring_search_match_index is equal to 0, this indicates + # that we are beyond the end of $_history_substring_search_matches. + # + # If we have initially pressed "up" we have to initialize + # $_history_substring_search_match_index to + # $_history_substring_search_matches_count_plus so that it will be + # decreased to $_history_substring_search_matches_count. + # + # If we have initially pressed "down" we have to initialize + # $_history_substring_search_match_index to + # $_history_substring_search_matches_count so that it will be increased to + # $_history_substring_search_matches_count_plus. + # + if [[ $WIDGET == history-substring-search-down ]]; then + _history_substring_search_match_index=$_history_substring_search_matches_count + else + _history_substring_search_match_index=$_history_substring_search_matches_count_plus + fi + fi +} + +function _history-substring-search-end() { + _history_substring_search_result=$BUFFER + + # move the cursor to the end of the command line + if [[ $_history_substring_search_move_cursor_eol == true ]]; then + CURSOR=${#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 && -n $_history_substring_search_query ]]; then + # + # The following expression yields a variable $MBEGIN, which + # indicates the begin position + 1 of the first occurrence + # of _history_substring_search_query_escaped in $BUFFER. + # + : ${(S)BUFFER##(#m$HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS)($_history_substring_search_query##)} + local begin=$(( MBEGIN - 1 )) + local end=$(( begin + $#_history_substring_search_query )) + region_highlight+=("$begin $end $_history_substring_search_query_highlight") + fi + + # For debugging purposes: + # zle -R "mn: "$_history_substring_search_match_index" m#: "${#_history_substring_search_matches} + # read -k -t 200 && zle -U $REPLY + + # Exit successfully from the history-substring-search-* widgets. + true +} + +function _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 true + fi + + false +} + +function _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 true + fi + + false +} + +function _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-history + fi + + return true + fi + + false +} + +function _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_move_cursor_eol=true + + # going down from somewhere above the bottom of history + else + zle down-history + fi + + return true + fi + + false +} + +function _history-substring-search-up-search() { + _history_substring_search_move_cursor_eol=true + + # + # Highlight matches during history-substring-up-search: + # + # The following constants have been initialized in + # _history-substring-search-up/down-search(): + # + # $_history_substring_search_matches is the current list of matches + # $_history_substring_search_matches_count is the current number of matches + # $_history_substring_search_matches_count_plus is the current number of matches + 1 + # $_history_substring_search_matches_count_sans is the current number of matches - 1 + # $_history_substring_search_match_index is the index of the current match + # + # The range of values that $_history_substring_search_match_index can take + # is: [0, $_history_substring_search_matches_count_plus]. A value of 0 + # indicates that we are beyond the end of + # $_history_substring_search_matches. A value of + # $_history_substring_search_matches_count_plus indicates that we are beyond + # the beginning of $_history_substring_search_matches. + # + # In _history-substring-search-up-search() the initial value of + # $_history_substring_search_match_index is + # $_history_substring_search_matches_count_plus. This value is set in + # _history-substring-search-begin(). _history-substring-search-up-search() + # will initially decrease it to $_history_substring_search_matches_count. + # + if [[ $_history_substring_search_match_index -ge 2 ]]; then + # + # Highlight the next match: + # + # 1. Decrease the value of $_history_substring_search_match_index. + # + # 2. Use $HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND + # to highlight the current buffer. + # + (( _history_substring_search_match_index-- )) + BUFFER=$history[$_history_substring_search_matches[$_history_substring_search_match_index]] + _history_substring_search_query_highlight=$HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND + + elif [[ $_history_substring_search_match_index -eq 1 ]]; then + # + # We will move beyond the end of $_history_substring_search_matches: + # + # 1. Decrease the value of $_history_substring_search_match_index. + # + # 2. Save the current buffer in $_history_substring_search_old_buffer, + # so that it can be retrieved by + # _history-substring-search-down-search() later. + # + # 3. Make $BUFFER equal to $_history_substring_search_query. + # + # 4. Use $HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND + # to highlight the current buffer. + # + (( _history_substring_search_match_index-- )) + _history_substring_search_old_buffer=$BUFFER + BUFFER=$_history_substring_search_query + _history_substring_search_query_highlight=$HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND + + elif [[ $_history_substring_search_match_index -eq $_history_substring_search_matches_count_plus ]]; then + # + # We were beyond the beginning of $_history_substring_search_matches but + # UP makes us move back to $_history_substring_search_matches: + # + # 1. Decrease the value of $_history_substring_search_match_index. + # + # 2. Restore $BUFFER from $_history_substring_search_old_buffer. + # + # 3. Use $HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND + # to highlight the current buffer. + # + (( _history_substring_search_match_index-- )) + BUFFER=$_history_substring_search_old_buffer + _history_substring_search_query_highlight=$HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND + fi +} + +function _history-substring-search-down-search() { + _history_substring_search_move_cursor_eol=true + + # + # Highlight matches during history-substring-up-search: + # + # The following constants have been initialized in + # _history-substring-search-up/down-search(): + # + # $_history_substring_search_matches is the current list of matches + # $_history_substring_search_matches_count is the current number of matches + # $_history_substring_search_matches_count_plus is the current number of matches + 1 + # $_history_substring_search_matches_count_sans is the current number of matches - 1 + # $_history_substring_search_match_index is the index of the current match + # + # The range of values that $_history_substring_search_match_index can take + # is: [0, $_history_substring_search_matches_count_plus]. A value of 0 + # indicates that we are beyond the end of + # $_history_substring_search_matches. A value of + # $_history_substring_search_matches_count_plus indicates that we are beyond + # the beginning of $_history_substring_search_matches. + # + # In _history-substring-search-down-search() the initial value of + # $_history_substring_search_match_index is + # $_history_substring_search_matches_count. This value is set in + # _history-substring-search-begin(). + # _history-substring-search-down-search() will initially increase it to + # $_history_substring_search_matches_count_plus. + # + if [[ $_history_substring_search_match_index -le $_history_substring_search_matches_count_sans ]]; then + # + # Highlight the next match: + # + # 1. Increase $_history_substring_search_match_index by 1. + # + # 2. Use $HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND + # to highlight the current buffer. + # + (( _history_substring_search_match_index++ )) + BUFFER=$history[$_history_substring_search_matches[$_history_substring_search_match_index]] + _history_substring_search_query_highlight=$HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND + + elif [[ $_history_substring_search_match_index -eq $_history_substring_search_matches_count ]]; then + # + # We will move beyond the beginning of $_history_substring_search_matches: + # + # 1. Increase $_history_substring_search_match_index by 1. + # + # 2. Save the current buffer in $_history_substring_search_old_buffer, so + # that it can be retrieved by _history-substring-search-up-search() + # later. + # + # 3. Make $BUFFER equal to $_history_substring_search_query. + # + # 4. Use $HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND + # to highlight the current buffer. + # + (( _history_substring_search_match_index++ )) + _history_substring_search_old_buffer=$BUFFER + BUFFER=$_history_substring_search_query + _history_substring_search_query_highlight=$HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND + + elif [[ $_history_substring_search_match_index -eq 0 ]]; then + # + # We were beyond the end of $_history_substring_search_matches but DOWN + # makes us move back to the $_history_substring_search_matches: + # + # 1. Increase $_history_substring_search_match_index by 1. + # + # 2. Restore $BUFFER from $_history_substring_search_old_buffer. + # + # 3. Use $HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND + # to highlight the current buffer. + # + (( _history_substring_search_match_index++ )) + BUFFER=$_history_substring_search_old_buffer + _history_substring_search_query_highlight=$HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND + fi +} + +# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*- +# vim: ft=zsh sw=2 ts=2 et |