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Choose between prefix cache and suffix cache

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This commit is contained in:
Junegunn Choi 2013-10-29 15:46:19 +09:00
parent bf71b1767d
commit 856dad4ac8
1 changed files with 11 additions and 5 deletions
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fzf
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@ -359,13 +359,19 @@ searcher = Thread.new {
list, cache = pair
found.concat(cache[q] ||= begin
prefix_cache = nil
(q.length - 1).downto(1) do |len|
prefix = q[0, len]
break if prefix_cache = cache[prefix]
prefix, suffix = @query[0, @cursor_x], @query[@cursor_x..-1] || ''
prefix_cache = suffix_cache = nil
(prefix.length - 1).downto(1) do |len|
break if prefix_cache = cache[prefix[0, len]]
end
(prefix_cache ? prefix_cache.map { |e| e.first } : list).map { |line|
0.upto(suffix.length - 1) do |idx|
break if suffix_cache = cache[suffix[idx..-1]]
end unless suffix.empty?
partial_cache = [prefix_cache, suffix_cache].compact.sort_by { |e| e.length }.first
(partial_cache ? partial_cache.map { |e| e.first } : list).map { |line|
if regexp
# Ignore errors: e.g. invalid byte sequence in UTF-8
md = line.match(regexp) rescue nil