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Filename : Mail::RFC822::Address.3pm
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.\" ========================================================================
.\"
.IX Title "Address 3"
.TH Address 3 "2002-04-13" "perl v5.32.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
Mail::RFC822::Address \- Perl extension for validating email addresses 
according to RFC822
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&  use Mail::RFC822::Address qw(valid validlist);
\&
\&  if (valid("pdw@ex\-parrot.com")) {
\&      print "That\*(Aqs a valid address\en";
\&  }
\&
\&  if (validlist("pdw@ex\-parrot.com, other@elsewhere.com")) {
\&      print "That\*(Aqs a valid list of addresses\en";
\&  }
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Mail::RFC822::Address validates email addresses against the grammar described
in \s-1RFC 822\s0 using regular expressions.  How to validate a user supplied email
address is a \s-1FAQ\s0 (see perlfaq9): the only sure way to see if a supplied email
address is genuine is to send an email to it and see if the user recieves it.
The one useful check that can be performed on an address is to check that the
email address is syntactically valid.  That is what this module does.
.PP
This module is functionally equivalent to RFC::RFC822::Address, but uses
regular expressions rather than the Parse::RecDescent parser.  This means that
startup time is greatly reduced making it suitable for use in transient scripts
such as \s-1CGI\s0 scripts.
.SS "valid ( address )"
.IX Subsection "valid ( address )"
Returns true or false to indicate if address is an \s-1RFC822\s0 valid address.
.SS "validlist ( addresslist )"
.IX Subsection "validlist ( addresslist )"
In scalar context, returns true if the parameter is an \s-1RFC822\s0 valid list of
addresses.
.PP
In list context, returns an empty list on failure (an invalid address was
found); otherwise a list whose first element is the number of addresses found
and whose remaining elements are the addresses.  This is needed to disambiguate
failure (invalid) from success with no addresses found, because an empty string
is a valid list.
.SH "AUTHOR"
.IX Header "AUTHOR"
Paul Warren, pdw@ex\-parrot.com
.SH "CREDITS"
.IX Header "CREDITS"
Most of the test suite in test.pl is taken from RFC::RFC822::Address, written
by Abigail, abigail@foad.org
.SH "COPYRIGHT and LICENSE"
.IX Header "COPYRIGHT and LICENSE"
This program is copyright 2001\-2002 by Paul Warren.
.PP
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the \*(L"Software\*(R"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions: The above copyright notice and this
permission notice shall be included in all copies or substantial portions of
the Software.
.PP
\&\s-1THE SOFTWARE IS PROVIDED \*(L"AS IS\*(R", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\s0
.SH "SEE ALSO"
.IX Header "SEE ALSO"
RFC::RFC822::Address, Mail::Address