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Code quality improvements

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This commit is contained in:
Lars Mueller 2021-11-13 13:15:58 +01:00
parent 9b72be42af
commit 6b8fb8da91
1 changed files with 14 additions and 15 deletions
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29
table.lua
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@ -1,5 +1,5 @@
-- Localize globals -- Localize globals
local assert, error, ipairs, math, next, pairs, rawget, rawset, setmetatable, string, table, type = assert, error, ipairs, math, next, pairs, rawget, rawset, setmetatable, string, table, type local assert, ipairs, math, next, pairs, rawget, rawset, setmetatable, string, table, type = assert, ipairs, math, next, pairs, rawget, rawset, setmetatable, string, table, type
-- Set environment -- Set environment
local _ENV = {} local _ENV = {}
@ -58,7 +58,7 @@ local rope_len_metatable = {__index = {
self.len = self.len + text:len() self.len = self.len + text:len()
end end
}} }}
--> rope for determining length supporting :write(text), .len being the length --> rope for determining length of text supporting `:write(text)` and `.len` to get the length of written text
function rope_len(len) function rope_len(len)
return setmetatable({len = len or 0}, rope_len_metatable) return setmetatable({len = len or 0}, rope_len_metatable)
end end
@ -419,7 +419,6 @@ function find(list, value)
return index return index
end end
end end
return
end end
contains = find contains = find
@ -560,21 +559,20 @@ function rpairs(table)
end end
function best_value(table, is_better_func) function best_value(table, is_better_func)
local best = next(table) local best_key = next(table)
if best == nil then if best_key == nil then
return return
end end
local candidate = best local candidate_key = best_key
while true do while true do
candidate = next(table, candidate) candidate_key = next(table, candidate_key)
if candidate == nil then if candidate_key == nil then
return best return best_key
end end
if is_better_func(candidate, best) then if is_better_func(candidate_key, best_key) then
best = candidate best_key = candidate_key
end end
end end
error()
end end
function min(table) function min(table)
@ -619,9 +617,10 @@ end
binary_search = binary_search_comparator(default_comparator) binary_search = binary_search_comparator(default_comparator)
function reverse(table) function reverse(table)
local l = #table + 1 local len = #table
for index = 1, math.floor(#table / 2) do for index = 1, math.floor(len / 2) do
table[l - index], table[index] = table[index], table[l - index] local index_from_end = len + 1 - index
table[index_from_end], table[index] = table[index], table[index_from_end]
end end
return table return table
end end