Re: variable ending with ^@

Continue from previous mail..

 and this is the corresponding part of XSL file
 <CODE>
 <xsl:template match="MODULE_NAME">
    <form name="form1" method="POST" action="logic_file.cgi">
     <tr><td><input value="{$sidx}" type="hidden" name="sidx"></input>
     </td></tr>
    </form>
  </xsl:template>
 </CODE>

on form submit on this XSL file under some flag condition,here's my logic file
<CODE>
  logic code in perl
 &redirect(abc.cgi?idx=$in{'idx'}&done=1); //done=1 indicating logic
file executed
</CODE>

uptil here "idx" contains only value with no ^@.

in abc.cgi when I hit "Create",it goes to part of its code
<CODE>
if($in{'create'}) {
   chomp($in{'idx'});
   print $in{'idx'};
}
</CODE>
Here I am getting value appended with ^@.


On Sat, Feb 21, 2009 at 11:43 AM, himanshu padmanabhi
<himanshu.padmanabhi@xxxxxxxxx> wrote:
> Sorry all,the code is in perl.
>
> "abc.cgi"  has $in{'idx'}.
>
> concerned part of code
> <CODE>
> print "<form action=abc.cgi method=post name=abc>\n";
> print "<input type=hidden name=idx value='$in{'idx'}'>\n";
> print "</form>
> </CODE>
>
> on some JavaScript event,form.submit calls the same file,this part of code
> <CODE>
>   my $parser = XML::LibXML->new();
>    my $xslt = XML::LibXSLT->new();
>
>    my $source = $parser->parse_file($xmlfile);
>    my $style_doc = $parser->parse_file($xslfile);
>
>    my $stylesheet = $xslt->parse_stylesheet($style_doc);
>
>    if($in{'some_var'}) {
>        my $results = $stylesheet->transform($source, idx => "''");
>        print $stylesheet->output_string($results);
>    }else{
>        my $results = $stylesheet->transform($source,idx => "'$in{'idx'}'");
>        print $stylesheet->output_string($results);
>   }
> </CODE>
>
> and this is the corresponding part of XSL file
> <CODE>
> <xsl:template match="MODULE_NAME">
>    <form name="form1" method="POST" action="logic_file.cgi">
>     <tr><td><input value="{$sidx}" type="hidden" name="sidx"></input>
>
>
> </CODE>
>
>
> On Sat, Feb 21, 2009 at 3:19 AM, C. M. Sperberg-McQueen
> <cmsmcq@xxxxxxxxxxxxxxxxx> wrote:
>>
>> On 20 Feb 2009, at 09:10 , Michael Kay wrote:
>>
>>> I don't know the answer, and I suspect no-one else does either. You
>>> haven't
>>> given enough information. It's not even clear what programming language
>>> each
>>> of these code fragments represents. Certainly, the "^@" is coming from a
>>> place that you haven't told us about.
>>>
>>> Michael Kay
>>> http://www.saxonica.com/
>>>
>>>> -----Original Message-----
>>>> From: himanshu padmanabhi [mailto:himanshu.padmanabhi@xxxxxxxxx]
>>>> Sent: 19 February 2009 13:26
>>>> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
>>>> Subject:  variable ending with ^@
>>>>
>>>> Code flow
>>>>
>>>>
>>>>
>>>> abc.cgi->abc.cgi on form .submit->abc.xsl on form submit->xyz.cgi
>>>> redirect->abc.cgi
>>>>
>>>> "abc.xsl" passes value to next form like "<input value="{$idx}"
>>>> type="hidden" name="idx"></input>" 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.
>>>>
>>
>> The string "^@" is a common way to make visible the control
>> character NUL.
>>
>> If I had to guess, I'd guess that some program in your tool
>> chain is miscalculating a string length somewhere, or inserting
>> a UTF16 character from page 00 of Unicode, in a place where the
>> consumer of the data is expecting UTF8 or some eight-bit
>> character set.  (The 00 octet will look to an eight-bit
>> application like a NUL character.)
>>
>> I hope this helps.  (But Michael Kay is quite right:  it will
>> help you get better answers if you provide better information
>> about the problem.)
>>
>>
>> Michael Sperberg-McQueen
>>
>>
>> --
>> ****************************************************************
>> * C. M. Sperberg-McQueen, Black Mesa Technologies LLC
>> * http://www.blackmesatech.com
>> * http://cmsmcq.com/mib
>> * http://balisage.net
>> ****************************************************************
>>
>>
>
>
>
> --
> Regards,
> Himanshu Padmanabhi
>



-- 
Regards,
Himanshu Padmanabhi