variable ending with ^@

himanshu.padmanabhi has asked for the wisdom of the Perl Monks concerning the following question:

"abc.cgi" has $in{'idx'}.

here is program flow
abc.cgi->abc.cgi on form .submit->abc.xsl on form submit->xyz.cgi
redirect->abc.cgi
[download]

"abc.xsl" passes value to next form like

"<input value="{$idx}"
type="hidden" name="idx"></input>"
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as suggested here. I am getting value of $in{'idx'} in final abc.cgi in above cycle.But getting its value as "idx=14^@". what is this "^@".I tried with chomp,chop.It still remains.

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Re: variable ending with ^@ by Fletch (Bishop) on Feb 19, 2009 at 13:49 UTC
Nulls (`\0`, ASCII character 0) are commonly represented by the sequence `^@` by many NIX tools. While it's unlikely you've set $/ so that chomp would get it chop certainly would if it was the last character of the string. `$ perl -le '$x = qq{abc\0}; print $x; chop $x; print $x;' \| od -xa 0000000 6261 0063 610a 6362 000a + a b c nul nl a b c nl` [download] Of course were there more context or (even better) actual code shown someone might be able to make more than that kind of vague guess. (See How (Not) To Ask A Question) Update:* Added sample. The cake is a lie. The cake is a lie. The cake is a lie.	[reply] [d/l]
Re: variable ending with ^@ by Anonymous Monk on Feb 22, 2009 at 03:39 UTC
caret at, means bugs bunny visits	[reply]