Mirrorlandia_minetest/Minetest-WorldEditAdditions
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shaved some milliseconds off split

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This commit is contained in:
VorTechnix 2021-07-23 18:05:54 -07:00
parent 6e3b9d99e9
commit af07a158a8
1 changed files with 20 additions and 11 deletions
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27
worldeditadditions/utils/strings/split.lua
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@ -42,13 +42,13 @@ function worldeditadditions.gsplit(text, pattern, plain)
end
--- Split a string into substrings separated by a pattern.
--- Split a string into substrings separated by a pattern. -- Deprecated
-- @param text string The string to iterate over
-- @param pattern string The separator pattern
-- @param plain boolean If true (or truthy), pattern is interpreted as a
-- plain string, not a Lua pattern
-- @returns table A sequence table containing the substrings
function worldeditadditions.split(text, pattern, plain)
function worldeditadditions.dsplit(text, pattern, plain)
local ret = {}
for match in worldeditadditions.gsplit(text, pattern, plain) do
table.insert(ret, match)
@ -62,15 +62,24 @@ end
-- @param plain boolean If true (or truthy), pattern is interpreted as a
-- plain string, not a Lua pattern
-- @returns table A sequence table containing the substrings
function worldeditadditions.fsplit (str,dlm,plain)
local pos, ins = 0, 0
local ret = {}
repeat
ins = str:find(dlm,pos,plain)
function worldeditadditions.split (str,dlm,plain)
local pos, ret = 0, {}
local ins, i = str:find(dlm,pos,plain)
-- if plain shaves off some time in the while statement
if plain then
while ins do
table.insert(ret,str:sub(pos,ins - 1))
pos = ins + #dlm
until not str:find(dlm,pos,plain)
print(pos..","..#str)
ins = str:find(dlm,pos,true)
end
else
while ins do
table.insert(ret,str:sub(pos,ins - 1))
pos = i + 1
ins, i = str:find(dlm,pos)
end
end
-- print(pos..","..#str)
if str:sub(pos,#str) ~= "" then
table.insert(ret,str:sub(pos,#str))
end