What is multi line pattern in Lua?

Question

I want match multi line

/add val1::val2

and work via this pattern

^/add +(.+)::+(.+)$

but not work in multi line for example:

/add line1
line2
::
linexx
lineYY

tested this pattern but not work

^/add ([%w%s]*)::([%w%s]*)

Answer 1

. matches any character, including \n. Since you don't want to match multi-line strings, exclude \n explicitly, i.e, use [^\n] to replace .:

^/add +([^\n]+)::+([^\n]+)$

Test:

local str1 = '/add val1::val2'
local str2 = [[/add line1
line2
::
linexx
lineYY]]

local pattern = '^/add +([^\n]+)::+([^\n]+)$'

print(str1:match(pattern))
print(str2:match(pattern))