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Mail::SPF::MacroString(3)      User Contributed Perl Documentation	Mail::SPF::MacroString(3)

NAME
       Mail::SPF::MacroString - SPF record macro string class

SYNOPSIS
   Providing the expansion context early
	   use Mail::SPF::MacroString;

	   my $macrostring = Mail::SPF::MacroString->new(
	       text    => '%{ir}.%{v}._spf.%{d2}',
	       server  => $server,
	       request => $request
	   );

	   my $expanded = $macrostring->expand;

   Providing the expansion context late
	   use Mail::SPF::MacroString;

	   my $macrostring = Mail::SPF::MacroString->new(
	       text    => '%{ir}.%{v}._spf.%{d2}'
	   );

	   my $expanded1 = $macrostring->expand($server, $request1);

	   $macrostring->context($server, $request2);
	   my $expanded2 = $macrostring->expand;

DESCRIPTION
       An object of class Mail::SPF::MacroString represents a macro string that can be expanded
       to a plain string in the context of an SPF request.

   Constructor
       The following constructor is provided:

       new(%options): returns Mail::SPF::MacroString
	   Creates a new SPF record macro string object.

	   %options is a list of key/value pairs representing any of the following options:

	   text
	       Required.  The unexpanded text of the new macro string.

	   server
	       The Mail::SPF::Server object that is to be used when expanding the macro string.
	       A server object need not be attached statically to the macro string; it can be
	       specified dynamically when calling the "expand" method.

	   request
	       The Mail::SPF::Request object that is to be used when expanding the macro string.
	       A request object need not be attached statically to the macro string; it can be
	       specified dynamically when calling the "expand" method.

	   is_explanation
	       A boolean denoting whether the macro string is an explanation string obtained via
	       an "exp" modifier.  If true, the "c", "r", and "t" macros may appear in the macro
	       string, otherwise they may not, and if they do, a Mail::SPF::EInvalidMacro
	       exception will be thrown when the macro string is expanded.  Defaults to false.

   Instance methods
       The following instance methods are provided:

       text: returns string
	   Returns the unexpanded text of the macro string.

       context($server, $request): throws Mail::SPF::EOptionRequired
	   Attaches the given Mail::SPF::Server and Mail::SPF::Request objects as the context for
	   the macro string.

       expand: returns string; throws Mail::SPF::EMacroExpansionCtxRequired,
       Mail::SPF::EInvalidMacroString, Mail::SPF::Result::PermError
       expand($server, $request): returns string; throws Mail::SPF::EMacroExpansionCtxRequired,
       Mail::SPF::EInvalidMacroString, Mail::SPF::Result::PermError
	   Expands the text of the macro string using either the context specified through an
	   earlier call to the "context()" method, or the given context, and returns the
	   resulting string.  See RFC 4408, 8, for how macros are expanded.

       is_explanation: returns boolean
	   Returns true if the macro string is an explanation string obtained via an "exp"
	   modifier.  See the description of the "new" constructor's "is_explanation" option.

       stringify: returns string
	   Returns the expanded text of the macro string if a context is attached to the object.
	   Returns the unexpanded text otherwise.  You can simply use a Mail::SPF::MacroString
	   object as a string for the same effect, see "OVERLOADING".

OVERLOADING
       If a Mail::SPF::MacroString object is used as a string, the "stringify" method is used to
       convert the object into a string.

SEE ALSO
       Mail::SPF, Mail::SPF::Record, Mail::SPF::Server, Mail::SPF::Request

       <http://tools.ietf.org/html/rfc4408>

       For availability, support, and license information, see the README file included with
       Mail::SPF.

AUTHORS
       Julian Mehnle <julian@mehnle.net>, Shevek <cpan@anarres.org>

perl v5.16.3				    2014-06-10			Mail::SPF::MacroString(3)
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