how would I trim a mix of newline and space characters from the beginning and en

I've come up with the following which seems to work:

with(

local!array: split(
substitute(ri!text, char(13), ""),
/* removing char(13)s first - newlines will ALWAYS have char(10) and SOMETIMES also char(13) */
char(10)
),

local!secondArray: remove(
local!array,
where(
apply(
rule!APN_isBlank(_),
local!array
)
)
),

trim(joinArray(local!secondArray, char(10)))
)

I've come up with the following which seems to work:

with(

local!array: split(
substitute(ri!text, char(13), ""),
/* removing char(13)s first - newlines will ALWAYS have char(10) and SOMETIMES also char(13) */
char(10)
),

local!secondArray: remove(
local!array,
where(
apply(
rule!APN_isBlank(_),
local!array
)
)
),

trim(joinArray(local!secondArray, char(10)))
)