I'm requiring user input to be comma delimited text. However, I know that someone is going to delimit with carriage returns. The sort of input I'm looking for from my text area is:

a1, b2, c3, d4

What I want to guard against is:
a1(carriage return)
b2(carriage return)
c3(carriage return)
d4(carriage return)

I thought to replace carriage returns with commas but this doesn't seem to be carried out - could someone explain what I am doing wrong, and how to do it properly?

Thanks.

$words = param('words');
$words=~s/\s+//g;
$words=~s/\r/,/g;
$words=~s/\n/,/g;

#comma delimited user input
@words = split(/,/, $words);

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In reply to removing carriage returns in text area (cgi) by jonnyfolk

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