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585 lines
22 KiB
Bash
585 lines
22 KiB
Bash
#!/usr/bin/env zsh
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##############################################################################
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#
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# Copyright (c) 2009 Peter Stephenson
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# Copyright (c) 2011 Guido van Steen
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# Copyright (c) 2011 Suraj N. Kurapati
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# Copyright (c) 2011 Sorin Ionescu
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# Copyright (c) 2011 Vincent Guerci
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials provided
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# with the distribution.
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#
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# * Neither the name of the FIZSH nor the names of its contributors
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# may be used to endorse or promote products derived from this
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# software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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##############################################################################
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#-----------------------------------------------------------------------------
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# configuration variables
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#-----------------------------------------------------------------------------
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HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND='bg=magenta,fg=white,bold'
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HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND='bg=red,fg=white,bold'
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HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS='i'
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#-----------------------------------------------------------------------------
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# the main ZLE widgets
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#-----------------------------------------------------------------------------
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history-substring-search-up() {
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_history-substring-search-begin
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_history-substring-search-up-history ||
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_history-substring-search-up-buffer ||
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_history-substring-search-up-search
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_history-substring-search-end
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}
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history-substring-search-down() {
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_history-substring-search-begin
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_history-substring-search-down-history ||
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_history-substring-search-down-buffer ||
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_history-substring-search-down-search
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_history-substring-search-end
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}
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zle -N history-substring-search-up
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zle -N history-substring-search-down
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#-----------------------------------------------------------------------------
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# implementation details
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#-----------------------------------------------------------------------------
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zmodload -F zsh/parameter
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#
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# We have to "override" some keys and widgets if the
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# zsh-syntax-highlighting plugin has not been loaded:
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#
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# https://github.com/nicoulaj/zsh-syntax-highlighting
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#
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if [[ $+functions[_zsh_highlight] -eq 0 ]]; then
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#
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# Dummy implementation of _zsh_highlight() that
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# simply removes any existing highlights when the
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# user inserts printable characters into $BUFFER.
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#
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_zsh_highlight() {
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if [[ $KEYS == [[:print:]] ]]; then
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region_highlight=()
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fi
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}
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#
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# The following snippet was taken from the zsh-syntax-highlighting project:
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#
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# https://github.com/zsh-users/zsh-syntax-highlighting/blob/56b134f5d62ae3d4e66c7f52bd0cc2595f9b305b/zsh-syntax-highlighting.zsh#L126-161
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#
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# Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# * Neither the name of the zsh-syntax-highlighting contributors nor the
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# names of its contributors may be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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# IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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#--------------8<-------------------8<-------------------8<-----------------
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# Rebind all ZLE widgets to make them invoke _zsh_highlights.
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_zsh_highlight_bind_widgets()
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{
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# Load ZSH module zsh/zleparameter, needed to override user defined widgets.
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zmodload zsh/zleparameter 2>/dev/null || {
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echo 'zsh-syntax-highlighting: failed loading zsh/zleparameter.' >&2
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return 1
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}
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# Override ZLE widgets to make them invoke _zsh_highlight.
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local cur_widget
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for cur_widget in ${${(f)"$(builtin zle -la)"}:#(.*|_*|orig-*|run-help|which-command|beep|yank*)}; do
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case $widgets[$cur_widget] in
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# Already rebound event: do nothing.
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user:$cur_widget|user:_zsh_highlight_widget_*);;
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# User defined widget: override and rebind old one with prefix "orig-".
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user:*) eval "zle -N orig-$cur_widget ${widgets[$cur_widget]#*:}; \
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_zsh_highlight_widget_$cur_widget() { builtin zle orig-$cur_widget -- \"\$@\" && _zsh_highlight }; \
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zle -N $cur_widget _zsh_highlight_widget_$cur_widget";;
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# Completion widget: override and rebind old one with prefix "orig-".
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completion:*) eval "zle -C orig-$cur_widget ${${widgets[$cur_widget]#*:}/:/ }; \
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_zsh_highlight_widget_$cur_widget() { builtin zle orig-$cur_widget -- \"\$@\" && _zsh_highlight }; \
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zle -N $cur_widget _zsh_highlight_widget_$cur_widget";;
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# Builtin widget: override and make it call the builtin ".widget".
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builtin) eval "_zsh_highlight_widget_$cur_widget() { builtin zle .$cur_widget -- \"\$@\" && _zsh_highlight }; \
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zle -N $cur_widget _zsh_highlight_widget_$cur_widget";;
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# Default: unhandled case.
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*) echo "zsh-syntax-highlighting: unhandled ZLE widget '$cur_widget'" >&2 ;;
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esac
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done
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}
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#-------------->8------------------->8------------------->8-----------------
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_zsh_highlight_bind_widgets
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fi
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_history-substring-search-begin() {
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setopt localoptions extendedglob
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_history_substring_search_refresh_display=
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_history_substring_search_query_highlight=
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#
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# Continue using the previous $_history_substring_search_result by default,
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# unless the current query was cleared or a new/different query was entered.
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#
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if [[ -z $BUFFER || $BUFFER != $_history_substring_search_result ]]; then
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#
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# For the purpose of highlighting we will also keep
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# a version without doubly-escaped meta characters.
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#
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_history_substring_search_query=$BUFFER
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#
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# $BUFFER contains the text that is in the command-line currently.
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# we put an extra "\\" before meta characters such as "\(" and "\)",
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# so that they become "\\\(" and "\\\)".
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#
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_history_substring_search_query_escaped=${BUFFER//(#m)[\][()|\\*?#<>~^]/\\$MATCH}
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#
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# Find all occurrences of the search query in the history file.
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#
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# (k) returns the "keys" (history index numbers) instead of the values
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# (Oa) reverses the order, because (R) returns results reversed.
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#
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_history_substring_search_matches=(${(kOa)history[(R)(#$HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS)*${_history_substring_search_query_escaped}*]})
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#
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# Define the range of values that $_history_substring_search_match_index
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# can take: [0, $_history_substring_search_matches_count_plus].
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#
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_history_substring_search_matches_count=$#_history_substring_search_matches
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_history_substring_search_matches_count_plus=$(( _history_substring_search_matches_count + 1 ))
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_history_substring_search_matches_count_sans=$(( _history_substring_search_matches_count - 1 ))
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#
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# If $_history_substring_search_match_index is equal to
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# $_history_substring_search_matches_count_plus, this indicates that we
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# are beyond the beginning of $_history_substring_search_matches.
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#
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# If $_history_substring_search_match_index is equal to 0, this indicates
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# that we are beyond the end of $_history_substring_search_matches.
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#
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# If we have initially pressed "up" we have to initialize
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# $_history_substring_search_match_index to
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# $_history_substring_search_matches_count_plus so that it will be
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# decreased to $_history_substring_search_matches_count.
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#
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# If we have initially pressed "down" we have to initialize
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# $_history_substring_search_match_index to
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# $_history_substring_search_matches_count so that it will be increased to
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# $_history_substring_search_matches_count_plus.
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#
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if [[ $WIDGET == history-substring-search-down ]]; then
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_history_substring_search_match_index=$_history_substring_search_matches_count
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else
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_history_substring_search_match_index=$_history_substring_search_matches_count_plus
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fi
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fi
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}
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_history-substring-search-end() {
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setopt localoptions extendedglob
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_history_substring_search_result=$BUFFER
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# the search was successful so display the result properly by clearing away
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# existing highlights and moving the cursor to the end of the result buffer
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if [[ $_history_substring_search_refresh_display -eq 1 ]]; then
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region_highlight=()
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CURSOR=${#BUFFER}
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fi
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# highlight command line using zsh-syntax-highlighting
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_zsh_highlight
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# highlight the search query inside the command line
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if [[ -n $_history_substring_search_query_highlight && -n $_history_substring_search_query ]]; then
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#
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# The following expression yields a variable $MBEGIN, which
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# indicates the begin position + 1 of the first occurrence
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# of _history_substring_search_query_escaped in $BUFFER.
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#
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: ${(S)BUFFER##(#m$HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS)($_history_substring_search_query##)}
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local begin=$(( MBEGIN - 1 ))
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local end=$(( begin + $#_history_substring_search_query ))
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region_highlight+=("$begin $end $_history_substring_search_query_highlight")
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fi
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# For debugging purposes:
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# zle -R "mn: "$_history_substring_search_match_index" m#: "${#_history_substring_search_matches}
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# read -k -t 200 && zle -U $REPLY
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# Exit successfully from the history-substring-search-* widgets.
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return 0
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}
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_history-substring-search-up-buffer() {
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#
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# Check if the UP arrow was pressed to move the cursor within a multi-line
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# buffer. This amounts to three tests:
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#
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# 1. $#buflines -gt 1.
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#
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# 2. $CURSOR -ne $#BUFFER.
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#
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# 3. Check if we are on the first line of the current multi-line buffer.
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# If so, pressing UP would amount to leaving the multi-line buffer.
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#
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# We check this by adding an extra "x" to $LBUFFER, which makes
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# sure that xlbuflines is always equal to the number of lines
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# until $CURSOR (including the line with the cursor on it).
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#
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local buflines XLBUFFER xlbuflines
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buflines=(${(f)BUFFER})
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XLBUFFER=$LBUFFER"x"
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xlbuflines=(${(f)XLBUFFER})
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if [[ $#buflines -gt 1 && $CURSOR -ne $#BUFFER && $#xlbuflines -ne 1 ]]; then
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zle up-line-or-history
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return 0
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fi
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return 1
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}
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_history-substring-search-down-buffer() {
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#
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# Check if the DOWN arrow was pressed to move the cursor within a multi-line
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# buffer. This amounts to three tests:
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#
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# 1. $#buflines -gt 1.
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#
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# 2. $CURSOR -ne $#BUFFER.
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#
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# 3. Check if we are on the last line of the current multi-line buffer.
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# If so, pressing DOWN would amount to leaving the multi-line buffer.
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#
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# We check this by adding an extra "x" to $RBUFFER, which makes
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# sure that xrbuflines is always equal to the number of lines
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# from $CURSOR (including the line with the cursor on it).
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#
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local buflines XRBUFFER xrbuflines
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buflines=(${(f)BUFFER})
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XRBUFFER="x"$RBUFFER
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xrbuflines=(${(f)XRBUFFER})
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if [[ $#buflines -gt 1 && $CURSOR -ne $#BUFFER && $#xrbuflines -ne 1 ]]; then
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zle down-line-or-history
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return 0
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fi
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return 1
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}
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_history-substring-search-up-history() {
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#
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# Behave like up in ZSH, except clear the $BUFFER
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# when beginning of history is reached like in Fish.
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#
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if [[ -z $_history_substring_search_query ]]; then
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# we have reached the absolute top of history
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if [[ $HISTNO -eq 1 ]]; then
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BUFFER=
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# going up from somewhere below the top of history
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else
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zle up-line-or-history
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fi
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return 0
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fi
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return 1
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}
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_history-substring-search-down-history() {
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#
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# Behave like down-history in ZSH, except clear the
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# $BUFFER when end of history is reached like in Fish.
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#
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if [[ -z $_history_substring_search_query ]]; then
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# going down from the absolute top of history
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if [[ $HISTNO -eq 1 && -z $BUFFER ]]; then
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BUFFER=${history[1]}
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_history_substring_search_refresh_display=1
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# going down from somewhere above the bottom of history
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else
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zle down-line-or-history
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fi
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return 0
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fi
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return 1
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}
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_history-substring-search-not-found() {
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#
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# Nothing matched the search query, so put it back into the $BUFFER while
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# highlighting it accordingly so the user can revise it and search again.
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#
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_history_substring_search_old_buffer=$BUFFER
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BUFFER=$_history_substring_search_query
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_history_substring_search_query_highlight=$HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND
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}
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_history-substring-search-up-search() {
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_history_substring_search_refresh_display=1
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#
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# Highlight matches during history-substring-up-search:
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#
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# The following constants have been initialized in
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# _history-substring-search-up/down-search():
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#
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# $_history_substring_search_matches is the current list of matches
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# $_history_substring_search_matches_count is the current number of matches
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# $_history_substring_search_matches_count_plus is the current number of matches + 1
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# $_history_substring_search_matches_count_sans is the current number of matches - 1
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# $_history_substring_search_match_index is the index of the current match
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#
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# The range of values that $_history_substring_search_match_index can take
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# is: [0, $_history_substring_search_matches_count_plus]. A value of 0
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# indicates that we are beyond the end of
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# $_history_substring_search_matches. A value of
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# $_history_substring_search_matches_count_plus indicates that we are beyond
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# the beginning of $_history_substring_search_matches.
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#
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# In _history-substring-search-up-search() the initial value of
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# $_history_substring_search_match_index is
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# $_history_substring_search_matches_count_plus. This value is set in
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# _history-substring-search-begin(). _history-substring-search-up-search()
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# will initially decrease it to $_history_substring_search_matches_count.
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#
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if [[ $_history_substring_search_match_index -ge 2 ]]; then
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#
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# Highlight the next match:
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#
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# 1. Decrease the value of $_history_substring_search_match_index.
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#
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# 2. Use $HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND
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# to highlight the current buffer.
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#
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(( _history_substring_search_match_index-- ))
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BUFFER=$history[$_history_substring_search_matches[$_history_substring_search_match_index]]
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_history_substring_search_query_highlight=$HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND
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elif [[ $_history_substring_search_match_index -eq 1 ]]; then
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#
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# We will move beyond the end of $_history_substring_search_matches:
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#
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# 1. Decrease the value of $_history_substring_search_match_index.
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#
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# 2. Save the current buffer in $_history_substring_search_old_buffer,
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# so that it can be retrieved by
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# _history-substring-search-down-search() later.
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#
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# 3. Make $BUFFER equal to $_history_substring_search_query.
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#
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# 4. Use $HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND
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# to highlight the current buffer.
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#
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(( _history_substring_search_match_index-- ))
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_history-substring-search-not-found
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elif [[ $_history_substring_search_match_index -eq $_history_substring_search_matches_count_plus ]]; then
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#
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# We were beyond the beginning of $_history_substring_search_matches but
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# UP makes us move back to $_history_substring_search_matches:
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#
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# 1. Decrease the value of $_history_substring_search_match_index.
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#
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# 2. Restore $BUFFER from $_history_substring_search_old_buffer.
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#
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# 3. Use $HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND
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# to highlight the current buffer.
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#
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(( _history_substring_search_match_index-- ))
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BUFFER=$_history_substring_search_old_buffer
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_history_substring_search_query_highlight=$HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND
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else
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#
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# We are at the beginning of history and there are no further matches.
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#
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_history-substring-search-not-found
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return
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fi
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#
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# When HIST_FIND_NO_DUPS is set, meaning that only unique command lines from
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# history should be matched, make sure the new and old results are different.
|
|
# But when HIST_IGNORE_ALL_DUPS is set, ZSH already ensures a unique history.
|
|
#
|
|
if [[ ! -o HIST_IGNORE_ALL_DUPS && -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
|
|
|
|
#
|
|
# 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-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
|
|
|
|
else
|
|
#
|
|
# We are at the end of history and there are no further matches.
|
|
#
|
|
_history-substring-search-not-found
|
|
return
|
|
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.
|
|
# But when HIST_IGNORE_ALL_DUPS is set, ZSH already ensures a unique history.
|
|
#
|
|
if [[ ! -o HIST_IGNORE_ALL_DUPS && -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
|