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https://github.com/zsh-users/zsh-history-substring-search
synced 2024-09-20 08:09:05 +02:00
feat: add fuzzy search
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@ -117,6 +117,11 @@ default values only after having loaded this script into your ZSH session.
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Flags" section in the zshexpn(1) man page to learn about the kinds of
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values you may assign to this variable.
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* `HISTORY_SUBSTRING_SEARCH_FUZZY` is a global variable that defines
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how the command history will be searched for your query. If set to a non-empty
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value, causes this script to perform a fuzzy search by words, matching in
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given order e.g. `ab c` will match `*ab*c*`
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* `HISTORY_SUBSTRING_SEARCH_ENSURE_UNIQUE` is a global variable that defines
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whether all search results returned are _unique_. If set to a non-empty
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value, then only unique search results are presented. This behaviour is off
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@ -7,6 +7,7 @@
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# Copyright (c) 2011 Sorin Ionescu
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# Copyright (c) 2011 Vincent Guerci
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# Copyright (c) 2016 Geza Lore
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# Copyright (c) 2017 Bengt Brodersen
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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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@ -51,6 +52,7 @@ typeset -g _history_substring_search_refresh_display
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typeset -g _history_substring_search_query_highlight
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typeset -g _history_substring_search_result
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typeset -g _history_substring_search_query
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typeset -g -a _history_substring_search_query_parts
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typeset -g -A _history_substring_search_raw_matches
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typeset -g -i _history_substring_search_raw_match_index
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typeset -g -A _history_substring_search_matches
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@ -65,6 +67,7 @@ typeset -g HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND='bg=magenta,fg=white,bold'
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typeset -g HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND='bg=red,fg=white,bold'
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typeset -g HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS='i'
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typeset -g HISTORY_SUBSTRING_SEARCH_ENSURE_UNIQUE=''
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typeset -g HISTORY_SUBSTRING_SEARCH_FUZZY=''
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typeset -g _history_substring_search_{refresh_display,query_highlight,result,query,match_index,raw_match_index}
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typeset -ga _history_substring_search{,_raw}_matches
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@ -223,6 +226,7 @@ _history-substring-search-begin() {
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# speed things up a little.
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#
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_history_substring_search_query=
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_history_substring_search_query_parts=()
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_history_substring_search_raw_matches=()
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else
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@ -233,20 +237,31 @@ _history-substring-search-begin() {
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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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# compose search pattern
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#
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local escaped_query=${BUFFER//(#m)[\][()|\\*?#<>~^]/\\$MATCH}
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if [[ -n $HISTORY_SUBSTRING_SEARCH_FUZZY ]]; then
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#
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# `=` split string in arguments
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#
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_history_substring_search_query_parts=(${=_history_substring_search_query})
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else
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_history_substring_search_query_parts=(${_history_substring_search_query})
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fi
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#
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# Find all occurrences of the search query in the history file.
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# Escape and join query parts with wildcard character '*' as seperator
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# `(j:CHAR:)` join array to string with CHAR as seperator
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#
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local search_pattern="*${(j:*:)_history_substring_search_query_parts[@]//(#m)[\][()|\\*?#<>~^]/\\$MATCH}*"
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#
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# Find all occurrences of the search pattern 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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# (R) returns values in reverse older, so the index of the youngest
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# matching history entry is at the head of the list.
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#
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_history_substring_search_raw_matches=(${(k)history[(R)(#$HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS)*${escaped_query}*]})
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_history_substring_search_raw_matches=(${(k)history[(R)(#$HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS)${search_pattern}]})
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fi
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#
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@ -309,16 +324,20 @@ _history-substring-search-end() {
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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 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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if [[ -n $_history_substring_search_query_highlight ]]; then
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# highlight first matching query parts
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local highlight_start_index=0
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local highlight_end_index=0
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for query_part in $_history_substring_search_query_parts; do
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local escaped_query_part=${query_part//(#m)[\][()|\\*?#<>~^]/\\$MATCH}
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# (i) get index of pattern
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local query_part_match_index=${${BUFFER:$highlight_start_index}[(i)(#$HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS)${escaped_query_part}]}
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if [[ $query_part_match_index -le ${#BUFFER:$highlight_start_index} ]]; then
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highlight_start_index=$(( $highlight_start_index + $query_part_match_index ))
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highlight_end_index=$(( $highlight_start_index + ${#query_part} ))
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region_highlight+=("$(($highlight_start_index - 1)) $(($highlight_end_index - 1)) $_history_substring_search_query_highlight")
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fi
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done
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fi
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# For debugging purposes:
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