opus/sys/modules/opus/fuzzy.lua

22 lines
615 B
Lua

-- Based on Squid's fuzzy search
-- https://github.com/SquidDev-CC/artist/blob/vnext/artist/lib/match.lua
--
-- not very fuzzy anymore
local SCORE_WEIGHT = 1000
local LEADING_LETTER_PENALTY = -30
local LEADING_LETTER_PENALTY_MAX = -90
local _find = string.find
local _max = math.max
return function(str, pattern)
local start = _find(str, pattern, 1, true)
if start then
-- All letters before the current one are considered leading, so add them to our penalty
return SCORE_WEIGHT
+ _max(LEADING_LETTER_PENALTY * (start - 1), LEADING_LETTER_PENALTY_MAX)
- (#str - #pattern)
end
end