Mail::Pyzor::Digest::Pieces
This module houses backend logic for Mail::Pyzor::Digest.
It reimplements logic found in pyzor’s digest.py module (https://github.com/SpamExperts/pyzor/blob/master/pyzor/digest.py).
This imitates the corresponding object method in digest.py. It returns a reference to an array of strings. Each string can be either a byte string or a character string (e.g., UTF-8 decoded).
NB: RFC 2822 stipulates that message bodies should use CRLF line breaks, not plain LF (nor plain CR). Email::MIME::Encodings will thus convert any plain CRs in a quoted-printable message body into CRLF. Python, though, doesn’t do this, so the output of our implementation of digest_payloads() diverges from that of the Python original. It doesn’t ultimately make a difference since the line-ending whitespace gets trimmed regardless, but it’s necessary to factor in when comparing the output of our implementation with the Python output.
digest_payloads()
This imitates the corresponding object method in digest.py. It modifies $STRING in-place.
$STRING
As with the original implementation, if $STRING contains (decoded) Unicode characters, those characters will be parsed accordingly. So:
$str = "123\xc2\xa0"; # [ c2 a0 ] == \u00a0, non-breaking space normalize($str);
The above will leave $str alone, but this:
$str
utf8::decode($str); normalize($str);
… will trim off the last two bytes from $str.
This imitates the corresponding object method in digest.py. It returns a boolean.
This assembles a string buffer out of @LINES. The string is the buffer of octets that will be hashed to produce the message digest.
Each member of @LINES is expected to be an octet string, not a character string.
Imitates str.splitlines(). (cf. pydoc str)
str.splitlines()
pydoc str
Returns a plain list in list context. Returns the number of items to be returned in scalar context.
To install Mail::Pyzor, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Mail::Pyzor
CPAN shell
perl -MCPAN -e shell install Mail::Pyzor
For more information on module installation, please visit the detailed CPAN module installation guide.