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<!--
   $FML: chapter.sgml,v 1.1 2005/08/03 13:26:43 fukachan Exp $
-->


<chapter id="changes">
	<title>
	Difference Between &fml4; And &fml8;
	</title>


<para>
In this chapter, we describe the difference beetween &fml4; and &fml8;
</para>

<para>
Intuitively fml4 vs fml8 is equal to sendmail vs Postfix.
It is good image.
</para>


<sect1 id="changes.license">
	<title>
	Difference Between &fml4; And &fml8;: License.
	</title>

<para>
Roughly speaking, fml8 license is composed of Artistic, BSD or GPL.
A part of &fml8; is either of them.
</para>

<para>
In the case of &fml4;, almost all codes are written by fml project. 
The license of such codes is GPL.
jcode.pl and some perl modules are exceptions.
</para>

<para>
In the case of &fml8;, the source tree has sub tree which is divided
according to the license. For example, the license of fml/ sub tree is
Artictic, cpan/ is Artistic or GPL, gnu/ is GPL and img/ is BSD.
See the license files under them on the detail.
</para>

<para>
It is easy to remove some licensed files since the sub-tree is license
based.
</para>

<para>
&fml8; installs all modules of the tree into the proper path, so
installed modules are hybrid of licenses.  
You need to clarify the license before installation.
</para>

</sect1>


<sect1 id="changes.command.mail">
	<title>
	Difference Between &fml4; And &fml8;: Command Mail And Error Messages.
	</title>

<para>
&fml8; selects language of the return mail for command mail and error
messages by Accept-Language of the incoming message and other information.
See
<link linkend="language.preference">
<xref linkend="language.preference">
</link>
for more details.
</para>

<para>
In sending back files or messages, &fml8; uses MIME/Multipart.
tar.gz and zip formats are not supported..
</para>

</sect1>


<sect1 id="changes.cui">
	<title>
	Difference Between &fml4; And &fml8;: CUI
	</title>

<para>
There are two CUI: makefml and fml. 
The syntax of the two is different.
<screen>
makefml COMMAND ML OPTIONS
fml     ML COMMAND OPTIONS
</screen>
The only difference is the order of command argument.
</para>

<para>
&fml4; command shows processing information as could as possible.
Instead &fml8; command runs as could as silently since
it is proper for automatic process.
<footnote>
<para>
This silent behaviour is proper for automatic work. 
If needed, makefml/fml shows log output for computer processing.
</para>
</footnote>
This behaviour is UNIX style.
</para>

<para>
  <table>
    <title>
	Difference between &fml4; and &fml8;: CUI
    </title>

    <tgroup cols=3>

      <thead>
        <row>
          <entry> Content	</entry>
          <entry> &fml4;	</entry>
          <entry> &fml8;	</entry>
        </row>
      </thead>

      <tbody>
	<!-- TABLE START -->
	&table.changes.cui;
	<!-- TABLE END   -->
      </tbody>

    </tgroup>
  </table>
</para>

</sect1>


<sect1 id="changes.gui">
	<title>
	Difference Between &fml4; And &fml8;: GUI (CGI)
	</title>

<para>
In the case of &fml4;, you need to set up .cgi scripts and apache
configurations after installation.
</para>

<para>
In the case of &fml8;, "makefml newml" generates GUI scripts except
for the apache configurations.
</para>

<para>
Interface differs a lot.
The interface of &fml4 GUI is classical.
That of &fml8; is table based by default.
</para>

<para>
It is a TODO to select GUI skin dynamically.
</para>

</sect1>


<sect1 id="changes.filename">
	<title>
	File Naming Convention
	</title>

<para>
See
<link linkend="filename">
<xref linkend="filename">
</link>
for the file naming convention.
You need not to know the detail,
since the conversion tools convert files from &fml4; style to &fml8; one.
But it is useful to know it to see files.
</para>

<para>
The policy to handle member list and recipient list separately is
same. But the file name differs.
</para>

<para>
The file name is "filename-role" style.
The role is abbreviated if the role is default. 
</para>

<para>
"actives" is renamed to "recipients". The meaning is clear.
Instead "members" is "members".
</para>

<para>
"members-admin" is same.
"recipients-admin" exists virtually but is is not used.
</para>

<para>
"etc/passwd" is renamed to "etc/passwd-admin".
The format differs a little.
</para>

</sect1>


</chapter>