Newline

ID:1884934
 
Jun 29 2015, 12:01 am
(See the best response by Kaiochao.)
How do you prevent people from using newline ("\n") in chat?
Jun 29 2015, 12:04 am
You could replace all of them with something else.
Jun 29 2015, 12:14 am (Edited on Jun 29 2015, 12:34 am)
Nothing like html_encode() that just shows the text as is, and doesn't count \n as a newline?
Jun 29 2015, 12:23 am
Best response
If you had a function that could scan through a string and replace every instance of some string with another string, you could disable every \n in the original string.

For instance, you could use str_replace() from here like so:
mob/verb/say(t as text)
    t = str_replace(t, "\n", "\\n")
    world << "[src]: [html_encode(t)]"
The above code should replace each \n with an escaped \n that will show up in the output.
Jun 29 2015, 12:28 am
Thanks, very useful. Was secretly hoping for an html_encode that also disables all text macros, but \n is the only dangerous text macro that players can use so this'll be great.
Jun 29 2015, 9:16 am
Instead of replacing, I'd just go with the easier route and cut off the text there.

var/i = findtextEx(t, "\n")
if(i) t = copytext(1,i)
t = html_encode(t)    // lose other macros too