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| author | Kim Alvefur <zash@zash.se> | 2020-06-03 20:16:00 +0200 |
|---|---|---|
| committer | Kim Alvefur <zash@zash.se> | 2020-06-03 20:16:00 +0200 |
| commit | b73cad7f8e92862a77d03ecc3eb9e24bb389cc07 (patch) | |
| tree | cb4cce911aaf54886475a90661f3eaa219463e3c /util/human/units.lua | |
| parent | b95b0e602662861b8db5524d5e5971a927fb076f (diff) | |
| download | prosody-b73cad7f8e92862a77d03ecc3eb9e24bb389cc07.tar.gz prosody-b73cad7f8e92862a77d03ecc3eb9e24bb389cc07.zip | |
util.human.units: Put math functions into locals
Primarily because the next commit will deal with math.log behaving
differently on Lua 5.1 and that's eaiser with locals.
Diffstat (limited to 'util/human/units.lua')
| -rw-r--r-- | util/human/units.lua | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/util/human/units.lua b/util/human/units.lua index 91d6f0d5..471c82a0 100644 --- a/util/human/units.lua +++ b/util/human/units.lua @@ -1,3 +1,9 @@ +local math_abs = math.abs; +local math_ceil = math.ceil; +local math_floor = math.floor; +local math_log = math.log; +local math_max = math.max; +local math_min = math.min; local unpack = table.unpack or unpack; --luacheck: ignore 113 local large = { @@ -36,7 +42,7 @@ local binary = { -- unit: string, the base unit -- b: optional enum 'b', thousands base local function format(n, unit, b) --> string - local round = math.floor; + local round = math_floor; local prefixes = large; local logbase = 1000; local fmt = "%.3g %s%s"; @@ -48,9 +54,9 @@ local function format(n, unit, b) --> string logbase = 1024; elseif n < 1 then prefixes = small; - round = math.ceil; + round = math_ceil; end - local m = math.max(0, math.min(8, round(math.abs(math.log(math.abs(n), logbase))))); + local m = math_max(0, math_min(8, round(math_abs(math_log(math_abs(n), logbase))))); local prefix, multiplier = unpack(prefixes, m * 2-1, m*2); return fmt:format(n / (multiplier or 1), prefix or "", unit); end |