Another stream

lua/telescope/sorters.lua

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+local sorters = {}
+
+
+local Sorter = {}
+Sorter.__index = Sorter
+
+---@class Sorter
+--- Sorter sorts a list of results by return a single integer for a line,
+--- given a prompt
+---
+--- Lower number is better (because it's like a closer match)
+--- But, any number below 0 means you want that line filtered out.
+--- @param scoring_function function Function that has the interface:
+--      (sorter, prompt, line): number
+function Sorter:new(opts)
+  opts = opts or {}
+
+  return setmetatable({
+    state = {},
+    scoring_function = opts.scoring_function,
+  }, Sorter)
+end
+
+function Sorter:score(prompt, line)
+  return self:scoring_function(prompt, line)
+end
+
+function sorters.new(...)
+  return Sorter:new(...)
+end
+
+return sorters