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Module:TableTools: Difference between revisions

generate an error message when union and intersection functions are called with no arguments
m>Mr. Stradivarius on tour
(check type of prefix and suffix)
m>Mr. Stradivarius
(generate an error message when union and intersection functions are called with no arguments)
Line 49: Line 49:
--]]
--]]
function p.union(...)
function p.union(...)
local lim = select('#', ...)
if lim == 0 then
error("no arguments passed to 'union'", 2)
end
local ret, trackArrays = {}, {}
local ret, trackArrays = {}, {}
for i = 1, select('#', ...) do
for i = 1, lim do
local t = select(i, ...)
local t = select(i, ...)
checkType('union', i, t, 'table')
checkType('union', i, t, 'table')
Line 91: Line 95:
--]]
--]]
function p.valueUnion(...)
function p.valueUnion(...)
local lim = select('#', ...)
if lim == 0 then
error("no arguments passed to 'valueUnion'", 2)
end
local vals, ret = {}, {}
local vals, ret = {}, {}
for i = 1, select('#', ...) do
for i = 1, lim do
local t = select(i, ...)
local t = select(i, ...)
checkType('valueUnion', i, t, 'table')
checkType('valueUnion', i, t, 'table')
Line 122: Line 130:
--]]
--]]
function p.intersection(...)
function p.intersection(...)
local lim = select('#', ...)
if lim == 0 then
error("no arguments passed to 'intersection'", 2)
end
local ret, track, pairCounts = {}, {}, {}
local ret, track, pairCounts = {}, {}, {}
local lim = select('#', ...)
for i = 1, lim do
for i = 1, lim do
local t = select(i, ...)
local t = select(i, ...)
Line 155: Line 166:
--]]
--]]
function p.valueIntersection(...)
function p.valueIntersection(...)
local lim = select('#', ...)
if lim == 0 then
error("no arguments passed to 'valueIntersection'", 2)
end
local vals, ret = {}, {}
local vals, ret = {}, {}
local lim = select('#', ...)
for i = 1, lim do
for i = 1, lim do
local t = select(i, ...)
local t = select(i, ...)
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