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33 lines
1.2 KiB
Bash
33 lines
1.2 KiB
Bash
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#--------------------------------------------------------------------#
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# History Suggestion Strategy #
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#--------------------------------------------------------------------#
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# Suggests the most recent history item that matches the given
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# prefix.
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#
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_zsh_autosuggest_strategy_history() {
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# Reset options to defaults and enable LOCAL_OPTIONS
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emulate -L zsh
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# Enable globbing flags so that we can use (#m) and (x~y) glob operator
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setopt EXTENDED_GLOB
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# Escape backslashes and all of the glob operators so we can use
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# this string as a pattern to search the $history associative array.
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# - (#m) globbing flag enables setting references for match data
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# TODO: Use (b) flag when we can drop support for zsh older than v5.0.8
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local prefix="${1//(#m)[\\*?[\]<>()|^~#]/\\$MATCH}"
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# Get the history items that match the prefix, excluding those that match
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# the ignore pattern
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local pattern="$prefix*"
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if [[ -n $ZSH_AUTOSUGGEST_HISTORY_IGNORE ]]; then
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pattern="($pattern)~($ZSH_AUTOSUGGEST_HISTORY_IGNORE)"
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fi
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# Give the first history item matching the pattern as the suggestion
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# - (r) subscript flag makes the pattern match on values
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typeset -g suggestion="${history[(r)$pattern]}"
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}
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