# Mail::Message::Convert::Html - Format messages in HTML - perldoc - [phpMan]

## NAME
    [Mail::Message::Convert::Html](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert%3A%3AHtml/markdown) - Format messages in HTML

## INHERITANCE
     [Mail::Message::Convert::Html](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert%3A%3AHtml/markdown)
       is a [Mail::Message::Convert](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert/markdown)
       is a [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

## SYNOPSIS
     use [Mail::Message::Convert::Html](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert%3A%3AHtml/markdown);
     my $Html = [Mail::Message::Convert::Html](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert%3A%3AHtml/markdown)->new;

     print $html->fieldToHtml($head);
     print $html->headToHtmlHead($head);
     print $html->headToHtmlTable($head);
     print $html->textToHtml($text);

## DESCRIPTION
    The package contains various translators which handle HTML or XHTML without the help of external
    modules. There are more HTML related modules, which do require extra packages to be installed.

    Extends "DESCRIPTION" in [Mail::Message::Convert](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert/markdown).

## METHODS
    Extends "METHODS" in [Mail::Message::Convert](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert/markdown).

### Constructors
    Extends "Constructors" in [Mail::Message::Convert](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert/markdown).

    [Mail::Message::Convert::Html](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert%3A%3AHtml/markdown)->new(%options)
         -Option     --Defined in            --Default
          fields       [Mail::Message::Convert](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert/markdown)  <see description>
          head_mailto                          <true>
          log          [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)          'WARNINGS'
          produce                              HTML
          trace        [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)          'WARNINGS'

        fields => NAMES|ARRAY-OF-NAMES|REGEXS
        head_mailto => BOOLEAN
          Whether to replace e-mail addresses in some header lines with links.

        log => LEVEL
        produce => 'HTML'|'XHTML'
          Produce HTML or XHTML output. The output is slightly different, even html browsers will
          usually accept the XHTML data.

        trace => LEVEL

### Converting
    Extends "Converting" in [Mail::Message::Convert](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert/markdown).

    $obj->fieldContentsToHtml( $field, [$subject] )
        Format one field from the header to HTML. When the header line usually contains e-mail
        addresses, the line is scanned and valid addresses are linked with an "mailto:" anchor. The
        $subject can be specified to be included in that link.

    $obj->fieldToHtml( $field, [$subject] )
        Reformat one header line field to HTML. The $field's name is printed in bold, followed by
        the formatted field content, which is produced by fieldContentsToHtml().

    $obj->headToHtmlHead($head, $meta)
        Translate the selected header lines (fields) to an html page header. Each selected field
        will get its own meta line with the same name as the line. Furthermore, the "Subject" field
        will become the "title", and "From" is used for the "Author".

        Besides, you can specify your own meta fields, which will overrule header fields. Empty
        fields will not be included. When a "title" is specified, this will become the html title,
        otherwise the "Subject" field is taken. In list context, the lines are separately, where in
        scalar context the whole text is returned as one.

        If you need to add lines to the head (for instance, http-equiv lines), then splice them
        before the last element in the returned list.

        example:

         my @head = $html->headToHtmlHead
             ( $head
             , description => 'This is a message'
             , generator   => '[Mail::Box](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3ABox/markdown)'
             );
         splice @head, -1, 0, '<meta http-equiv=...>';
         print @head;

    $obj->headToHtmlTable( $head, [$table_params] )
        Produce a display of the selectedFields() of the header in a table shape. The optional
        $table_params are added as parameters to the produced TABLE tag. In list context, the
        separate lines are returned. In scalar context, everything is returned as one.

        example:

         print $html->headToHtmlTable($head, 'width="50%"');

    $obj->selectedFields($head)
        Inherited, see "Converting" in [Mail::Message::Convert](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert/markdown)

    $obj->textToHtml($lines)
        Translate one or more $lines from text into HTML. Each line is taken one after the other,
        and only simple things are translated. "textToHtml" is able to convert large plain texts in
        a descent fashion. In scalar context, the resulting lines are returned as one.

### Error handling
    Extends "Error handling" in [Mail::Message::Convert](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert/markdown).

    $obj->AUTOLOAD()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->addReport($object)
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level, $callback] )
    [Mail::Message::Convert::Html](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert%3A%3AHtml/markdown)->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level,
    $callback] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->errors()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->log( [$level, [$strings]] )
    [Mail::Message::Convert::Html](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert%3A%3AHtml/markdown)->log( [$level, [$strings]] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->logPriority($level)
    [Mail::Message::Convert::Html](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert%3A%3AHtml/markdown)->logPriority($level)
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->logSettings()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->notImplemented()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->report( [$level] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->reportAll( [$level] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->trace( [$level] )
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

    $obj->warnings()
        Inherited, see "Error handling" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

### Cleanup
    Extends "Cleanup" in [Mail::Message::Convert](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AMessage%3A%3AConvert/markdown).

    $obj->DESTROY()
        Inherited, see "Cleanup" in [Mail::Reporter](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AReporter/markdown)

## DIAGNOSTICS
    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.

## SEE ALSO
    This module is part of Mail-Message distribution version 3.015, built on December 11, 2023.
    Website: <http://perl.overmeer.net/CPAN/>

## LICENSE
    Copyrights 2001-2023 by [Mark Overmeer <<markov@cpan.org>>]. For other contributors see ChangeLog.

    This program is free software; you can redistribute it and/or modify it under the same terms as
    Perl itself. See <http://dev.perl.org/licenses/>