
=head1 NAME

Mail::Message::Field::Fast - one line of a message header


=head1 INHERITANCE

 Mail::Message::Field::Fast
   is a Mail::Message::Field
   is a Mail::Reporter


=head1 SYNOPSIS

 See L<Mail::Message::Field|Mail::Message::Field>


=head1 DESCRIPTION

This is the faster, but less flexible implementation of a header field.
The data is stored in an array, and some hacks are made to speeds
things up.  Be gentle with me, and consider that each message contains
many of these lines, so speed is very important here.

=head2 Header fields


=head2 Folding


=head2 Performance consideration



=head1 OVERLOADED


overload: B<"">

=over 4

See L<Mail::Message::Field/"OVERLOADED">

=back

overload: B<+0>

=over 4

See L<Mail::Message::Field/"OVERLOADED">

=back

overload: B<<=>>

=over 4

See L<Mail::Message::Field/"OVERLOADED">

=back

overload: B<bool>

=over 4

See L<Mail::Message::Field/"OVERLOADED">

=back

overload: B<cmp>

=over 4

See L<Mail::Message::Field/"OVERLOADED">

=back


=head1 METHODS


=head2 Constructors


$obj-E<gt>B<clone>

=over 4

See L<Mail::Message::Field/"Constructors">

=back

Mail::Message::Field::Fast-E<gt>B<new>(DATA)

=over 4

The constructor of this object does not follow the usual practise within
the Mail::Box suite: it does not use the constructor
L<Mail::Reporter::new()|"Constructors">.
Therefor it has no logging or tracing facilities.

The method can be used in one of the following ways:

=over 4

=item * B<new> LINE

Pass a LINE as it could be found in a file: a (possibly folded) line
which is terminated by a new-line.

=item * B<new> NAME, (BODY|OBJECTS), [ATTRIBUTES]

A set of values which shape the line.

=back

Create a new header field object.  Specify the whole LINE at once, and
it will be split-up for you.  I case you already have the parts of the
header line, you may specify them separately as NAME and BODY.

In case you specify a single OBJECT, or a reference to an array of
OBJECTS, these objects are processed to become suitable to fill a
field, usually by simple strification.  When you specify one or more
Mail::Address objects, these are transformed into a string using
their C<format> method.  You may also add one L<Mail::Message::Field|Mail::Message::Field>,
whose body is taken.  In case of an array, the elements are joined into
one string with a comma.

ATTRIBUTES can be exactly one string which may contain multiple attributes
at once, quoted and formatted as required in RFC2822.  As alternative,
list of key-value pairs can be used.  In this case, the values will get
quoted if needed and everything formatted as the protocol demands.

 Option  Defined in       Default   
 log     L<Mail::Reporter>  <disabled>
 trace   L<Mail::Reporter>  <disabled>

. log LEVEL

. trace LEVEL

I<Example:> 

 my $mime = Mail::Message::Field->new(
  'Content-Type: text/plain; charset=US-ASCII');

 my $mime = Mail::Message::Field->new(
  'Content-Type' => 'text/plain; charset=US-ASCII');

 my $mime = Mail::Message::Field->new(
  'Content-Type' => 'text/plain', 'charset=US-ASCII');

 my $mime = Mail::Message::Field->new(
  'Content-Type' => 'text/plain', charset => 'Latin1');

 my $mime = Mail::Message::Field->new(
  To => Mail::Address->new('My', 'me@example.com');

 my $mime = Mail::Message::Field->new(
  Cc => [ Mail::Address->new('You', 'you@example.com')
        , Mail::Address->new('His', 'he@example.com')
        ]);

But in practice, you can simply call

 my $head = Mail::Message::Head->new;
 $head->add( 'Content-Type' => 'text/plain'
           , charset => 'utf8');

which implicitly calls this constructor (when needed).  You can specify
the same things for L<Mail::Message::Head::Complete::add()|"Access to the header"> as this
C<new> accepts.

=back

=head2 The field


$obj-E<gt>B<isStructured>

Mail::Message::Field::Fast-E<gt>B<isStructured>

=over 4

See L<Mail::Message::Field/"The field">

=back

$obj-E<gt>B<length>

=over 4

See L<Mail::Message::Field/"The field">

=back

$obj-E<gt>B<nrLines>

=over 4

See L<Mail::Message::Field/"The field">

=back

$obj-E<gt>B<print>([FILEHANDLE])

=over 4

See L<Mail::Message::Field/"The field">

=back

$obj-E<gt>B<size>

=over 4

See L<Mail::Message::Field/"The field">

=back

$obj-E<gt>B<string>([WRAP])

=over 4

See L<Mail::Message::Field/"The field">

=back

$obj-E<gt>B<toDisclose>

=over 4

See L<Mail::Message::Field/"The field">

=back

=head2 Access to the name


$obj-E<gt>B<Name>

=over 4

See L<Mail::Message::Field/"Access to the name">

=back

$obj-E<gt>B<name>

=over 4

See L<Mail::Message::Field/"Access to the name">

=back

$obj-E<gt>B<wellformedName>([STRING])

=over 4

See L<Mail::Message::Field/"Access to the name">

=back

=head2 Access to the body


$obj-E<gt>B<body>

=over 4

See L<Mail::Message::Field/"Access to the body">

=back

$obj-E<gt>B<folded>

=over 4

See L<Mail::Message::Field/"Access to the body">

=back

$obj-E<gt>B<foldedBody>([BODY])

=over 4

See L<Mail::Message::Field/"Access to the body">

=back

$obj-E<gt>B<stripCFWS>([STRING])

Mail::Message::Field::Fast-E<gt>B<stripCFWS>([STRING])

=over 4

See L<Mail::Message::Field/"Access to the body">

=back

$obj-E<gt>B<unfoldedBody>([BODY, [WRAP]])

=over 4

See L<Mail::Message::Field/"Access to the body">

=back

=head2 Access to the content


$obj-E<gt>B<addresses>

=over 4

See L<Mail::Message::Field/"Access to the content">

=back

$obj-E<gt>B<attribute>(NAME [, VALUE])

=over 4

See L<Mail::Message::Field/"Access to the content">

=back

$obj-E<gt>B<comment>([STRING])

=over 4

See L<Mail::Message::Field/"Access to the content">

=back

$obj-E<gt>B<toDate>([TIME])

Mail::Message::Field::Fast-E<gt>B<toDate>([TIME])

=over 4

See L<Mail::Message::Field/"Access to the content">

=back

$obj-E<gt>B<toInt>

=over 4

See L<Mail::Message::Field/"Access to the content">

=back

=head2 Other methods


$obj-E<gt>B<dateToTimestamp>(STRING)

Mail::Message::Field::Fast-E<gt>B<dateToTimestamp>(STRING)

=over 4

See L<Mail::Message::Field/"Other methods">

=back

=head2 Internals


$obj-E<gt>B<consume>(LINE | (NAME,BODY|OBJECTS))

=over 4

See L<Mail::Message::Field/"Internals">

=back

$obj-E<gt>B<defaultWrapLength>([LENGTH])

=over 4

See L<Mail::Message::Field/"Internals">

=back

$obj-E<gt>B<fold>(NAME, BODY, [MAXCHARS])

=over 4

See L<Mail::Message::Field/"Internals">

=back

$obj-E<gt>B<setWrapLength>([LENGTH])

=over 4

See L<Mail::Message::Field/"Internals">

=back

$obj-E<gt>B<unfold>(STRING)

=over 4

See L<Mail::Message::Field/"Internals">

=back

=head2 Error handling


$obj-E<gt>B<AUTOLOAD>

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<defaultTrace>([LEVEL, [LEVEL])

Mail::Message::Field::Fast-E<gt>B<defaultTrace>([LEVEL, [LEVEL])

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<errors>

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<log>([LEVEL [,STRINGS]])

Mail::Message::Field::Fast-E<gt>B<log>([LEVEL [,STRINGS]])

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<logPriority>(LEVEL)

Mail::Message::Field::Fast-E<gt>B<logPriority>(LEVEL)

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<logSettings>

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<notImplemented>

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<report>([LEVEL])

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<reportAll>([LEVEL])

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<trace>([LEVEL])

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<warnings>

=over 4

See L<Mail::Reporter/"Error handling">

=back

=head2 Cleanup


$obj-E<gt>B<DESTROY>

=over 4

See L<Mail::Reporter/"Cleanup">

=back

$obj-E<gt>B<inGlobalDestruction>

=over 4

See L<Mail::Reporter/"Cleanup">

=back



=head1 DIAGNOSTICS

I<Warning:> Field content is not numerical: $content

The numeric value of a field is requested (for instance the C<Lines> or
C<Content-Length> fields should be numerical), however the data contains
weird characters.

I<Warning:> Illegal character in field name $name

A new field is being created which does contain characters not permitted
by the RFCs.  Using this field in messages may break other e-mail clients
or transfer agents, and therefore mutulate or extinguish your message.

I<Error:> Package $package does not implement $method.

Fatal error: the specific package (or one of its superclasses) does not
implement this method where it should. This message means that some other
related classes do implement this method however the class at hand does
not.  Probably you should investigate this and probably inform the author
of the package.






=head1 REFERENCES

See the Mail::Box website at L<http://perl.overmeer.net/mailbox/> for more details.

=head1 COPYRIGHTS

Module version 2.042.
Written by Mark Overmeer (mark@overmeer.net).  See the ChangeLog for
other contributors.

Copyright (c) 2001-2003 by the author(s). All rights reserved.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.


