mirror of
				https://github.com/ohmyzsh/ohmyzsh.git
				synced 2024-05-11 05:55:17 +00:00 
			
		
		
		
	
		
			
				
	
	
		
			586 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
			
		
		
	
	
			586 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
| #!/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
 | |
| # 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
 | |
| #-----------------------------------------------------------------------------
 | |
| 
 | |
| 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
 | |
| 
 | |
| #
 | |
| # 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
 | |
|   }
 | |
| 
 | |
|   #
 | |
|   # 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
 | |
|   #
 | |
|   # 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.
 | |
|   #
 | |
|   #--------------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-----------------
 | |
| 
 | |
|   _zsh_highlight_bind_widgets
 | |
| fi
 | |
| 
 | |
| _history-substring-search-begin() {
 | |
|   setopt localoptions extendedglob
 | |
| 
 | |
|   _history_substring_search_refresh_display=
 | |
|   _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) returns the "keys" (history index numbers) instead of the values
 | |
|     # (Oa) reverses the order, because (R) returns results reversed.
 | |
|     #
 | |
|     _history_substring_search_matches=(${(kOa)history[(R)(#$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=$_history_substring_search_matches_count_plus
 | |
|     fi
 | |
|   fi
 | |
| }
 | |
| 
 | |
| _history-substring-search-end() {
 | |
|   setopt localoptions extendedglob
 | |
| 
 | |
|   _history_substring_search_result=$BUFFER
 | |
| 
 | |
|   # 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 [[ $_history_substring_search_refresh_display -eq 1 ]]; then
 | |
|     region_highlight=()
 | |
|     CURSOR=${#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.
 | |
|   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-not-found() {
 | |
|   #
 | |
|   # Nothing matched the search query, so put it back into the $BUFFER while
 | |
|   # highlighting it accordingly so the user can revise it and search again.
 | |
|   #
 | |
|   _history_substring_search_old_buffer=$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
 | |
| 
 | |
|   #
 | |
|   # 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-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
 | |
| 
 | |
|   else
 | |
|     #
 | |
|     # We are at the beginning 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-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
 |