261884 - Null Javascript characters show in textbox and can't use indexOf to find them.

Status: RESOLVED INCOMPLETE

(Core :: DOM: Core & HTML, defect)

Description

[Barry Boyce]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; rv:1.7.3) Gecko/20040920 Firefox/0.10
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; rv:1.7.3) Gecko/20040920 Firefox/0.10

When appending the null string "\0\0\0\0\0\0\0\0" to a string it is supposed to
make null characters.  Well I can do a charCodeAt and the extra characters will
have a value of 0 but I can't do an indexOf("\0\0\0\0\0\0\0\0") to find the
first occurence of the null characters so that I can use a substr to remove them
from showing up in the text box.

Reproducible: Always
Steps to Reproduce:
1.Type in some string that isn't a power of 8 @ http://pwstudios.com/des.html.
2.Press encrypt.
3.Press decrypt.

Actual Results:  
Watch the null characters party at the end of your string!

Expected Results:  
Well, either omit null characters or allow me to find them and remove them
myself via a indexOf or something.

Comment 1

[Brendan Eich [:brendan]]

Attachment: JS shell testcase, which passes

So there's no JS engine bug -- but where is the bug?  Not in Firefox's website!


/be

Comment 2

[Brendan Eich [:brendan]]

Need a minimal testcase.  Probably DOM .

/be

Comment 3

[Boris Zbarsky [:bzbarsky]]

The JS in http://pwstudios.com/des.js has no calls to indexOf....

Comment 4

[timeless]

data:text/html,<a onclick='z()'>click me</a>%0d%0a<script>function q(a)
{window.status+='\t'+a;} function z(){var a='aaa\0\0\0'; q(a.indexOf('\0\0\0'));
var aa=document.getElementById('aa'); aa.value=a; q(aa.value.indexOf('\0\0\0'));
}</script><form id='f'><input id='aa'>

wfm

personally i'd probably use .replace(/\0+$/,'') ....