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Re: binary test and position?

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From:
ToddAndMargo via perl6-users
Date:
February 2, 2019 03:37
Subject:
Re: binary test and position?
Message ID:
ee28fc43-fef6-3b3b-a56c-3dba9a588281@zoho.com
On 2/1/19 7:22 PM, ToddAndMargo via perl6-users wrote:
> Hi All,
> 
> On a type Buf, what do I use to check for the
> position of a byte pattern?
> 
> 
> Many thanks,
> -T


Basically, what am I doing wrong here?

$ p6 'my $handle=open("filever.exe", :bin, :ro); my Buf $b; $b= 
$handle.read(5); say $b; say $b[2..4];; if ( $b[2..4] eq 0x90,0x00,0x04 
) {say "y";} else {say "n"}; $handle.close;'
Buf[uint8]:0x<4D 5A 90 00 03>
(144 0 3)
y


I am testing to see if the pattern 0x90 0x00 0x04 exists,
which is does not.

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