readline textfile to array

[jonlauf]

In regards to the previous post about reading from a text file and appending each line to an array. Just swap the "c:/testtext.txt" string with the location of your file:

theFile = openfile "c:/testtext.txt"
txtArray = #()
if openfile != undefined then
(
while not eof theFile do
(
append txtArray (readline theFile)
)
close theFile
)

[jonlauf]

I believe you need to pass the array to the function as a reference. The following works for me:

try(destroyDialog ::rltest)catch()
rollout rltest "test"
(
fn fnListControls oldLst newLst oldArr newArr = ( -- add Objects to list
local currSel = oldLst.selection
for i = oldLst.items.count to 1 by -1 where currSel[i] do (appendIfUnique newArr oldLst.items[i])
newLst.items = sort newArr
for i = oldLst.items.count to 1 by -1 where currSel[i] do (deleteItem oldArr i)
oldLst.items = for i in oldArr collect i -- update list with array
oldLst.selection = #{}
)
fn fnClearBlackList newList newArr oldList &oldArr = -- Clear Blacklist
(
for itm in oldArr do appendIfUnique newArr itm
newList.items = sort newArr
oldArr = #()
oldList.items = oldArr
)

local whiteListedArr = #("Render01","Render02","Render03","Render04","Render05","Render06")
local blackListedArr = #()

MultiListBox mlbWhiteSlaves "Whitelisted Slaves:" items:whiteListedArr pos:[5,5] width:130 height:12
MultiListBox mlbBlackSlaves "Blacklisted Slaves:" pos:[167,5] width:130 height:12
button btnMoveToKT ">" height:30 width:30 pos:[136,22]
button btnRemoveFromKT "<" height:30 width:30 pos:[136,54]
button btnClearKT "X" height:30 width:30 pos:[136,86]

on btnMoveToKT pressed do
(
fnListControls mlbWhiteSlaves mlbBlackSlaves whiteListedArr blackListedArr
)

on btnRemoveFromKT pressed do
(
fnListControls mlbBlackSlaves mlbWhiteSlaves blackListedArr whiteListedArr
)

on btnClearKT pressed do
(
fnClearBlackList mlbWhiteSlaves whiteListedArr mlbBlackSlaves &blackListedArr
)
)

createDialog rltest 300 190

[JokerMartini]

I was unaware of the "&"
thank you!

What exactly does "&" do when using it?

[jonlauf]

It essentially assigns parameters directly to a variable, array, etc. that are passed in the argument list of a function. Look up "By Reference Parameter Passing" in the maxscript help and it will do a much better job explaining it then I could. ;)

[JokerMartini]

Great. Well I really appreciate your help on this. Thanks again.

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