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\input texinfo @c -*-texinfo-*-
@c
@c This is the ``Texinfo to HTML Converter'' manual which
@c which is part of the ``texi2html'' distribution.
@c
@c License:
@c    Copyright (C) 1999, 2000  Free Software Foundation, Inc.
@c
@c    This program is free software; you can redistribute it
@c    and/or modify it under the terms of the GNU General Public
@c    License as published by the Free Software Foundation;
@c    either version 2 of the License, or (at your option) any
@c    later version.
@c
@c    This program is distributed in the hope that it will be
@c    useful, but WITHOUT ANY WARRANTY; without even the implied
@c    warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
@c    PURPOSE.  See the GNU General Public License for more
@c    details.
@c
@c    You should have received a copy of the GNU General
@c    Public License along with this program; if not, write to
@c    the Free Software Foundation, Inc., 59 Temple Place, Suite
@c    330, Boston, MA  02111-1307  USA
@c
@c
@c Revisions:
@c 
@c
@c Author:
@c   Karl Heinz Marbaise <khmarbaise@gmx.de>
@c
@c --------------------------------------------------------
@c
@c Currently most of the material is copied out of
@c texi2html.init file. It's just a start point.
@c In other words this is a draft manual ;-)
@c
@setfilename texi2html.info
@c --------------------------------------------------------
@c Edition and last update date of the manual which might
@c differ to the scripts last update date etc.
@set MANUAL_UPD 14. August 2000
@set MANUAL_ED 0.21
@c
@set MANUAL_AUTHOR Karl Heinz Marbaise
@set MANUAL_AUTHOR_EMAIL khmarbaise@@gmx.de
@c
@c Get the version of the script itself through
@c configure/autoconf etc.
@c version.texi is automatically generated through
@c configure/autoconf.
@set UPDATED 15 September 2001
@set UPDATED-MONTH September 2001
@set EDITION 1.67
@set VERSION 1.67
@c --------------------------------------------------------
@c Index for command line options
@defcodeindex op
@c --------------------------------------------------------
@settitle Texinfo to HTML
@c @setchapternewpage on
@setchapternewpage odd
@footnotestyle separate
@c --------------------------------------------------------
@c support old style Info Dir entries.
@c --------------------------------------------------------
@c Informations for install-info.
@c I think the conversion script should be found
@c where the documentation system lives.
@c What do you think?
@dircategory Texinfo documentation system
@c --------------------------------------------------------
@c --------------------------------------------------------
@titlepage
@title Texinfo to HTML Converter
@subtitle Manual Edition 0.21
@subtitle Last Update: 14. August 2000
@subtitle for Version 1.67 of @command{texi2html} script.
@author Lionel Cons
@author Karl Berry
@author Olaf Bachmann
@author and many others.
@author Karl Heinz Marbaise (manual)
@page
@vskip 0pt plus 1filll
Copyright @copyright{} Lionel Cons@*
Copyright @copyright{} Karl Berry@*
Copyright @copyright{} Olaf Bachmann@*
Copyright @copyright{} and many others.@*
Copyright @copyright{} Karl Heinz Marbaise (manual)@*

Permission is granted to make and distribute verbatim
copies of this manual provided the copyright notice and
this permission notice are preserved on all copies.

Permission is granted to copy and distribute modified
versions of this manual under the conditions for verbatim
copying, provided that the entire resulting derived work is
distributed under the terms of a permission notice
identical to this one.

Permission is granted to copy and distribute translations
of this manual into another language, under the above
conditions for modified versions, except that this
permission notice may be stated in a translation approved
by the Free Software Foundation.
@sp 2
Cover art by Etienne Suvasa.
@end titlepage
@c ========================================================
@summarycontents
@contents
@c
@node Top, Overview, (dir), (dir)
@top Texi2html
@c @page
@c ========================================================
@c @node Top, Overview, (dir), (dir)
@c @top
@c @chapter About

This Manual (Edition 0.21, last updated at
14. August 2000) describes the @command{texi2html} Perl
script which converters
@c The following construct allows me to get
@c real URL link in HTML and working refs in
@c info.
@uref{http://www.texinfo.org,Texinfo}
into @acronym{HTML}.

@c @inforef{Top, Top, Texinfo} does not work yet ;-)
@c here we should paste a @inforef or @xref on the
@c Texinfo manual.

Please send bug reports about this manual to Karl Heinz
Marbaise @email{khmarbaise@@gmx.de}. Please state exact
version/edition of the manual (can be found at start of
Texinfo source file; use the entry Id under Revisions).

Please note:
@example
This manual is currently under
construction and of course incomplete ;-)
@end example

@c The following line within a menu does not work!
@c * Why texi2html and not Makeinfo?:whytexi2html.      Why texi2html and not makeinfo?.
@c ========================================================
@node Overview, HowToGetHTML, Top, Top
@chapter Overview about @command{texi2html}
@uref{http://www.texinfo.org,Texinfo} is the official
documentation format of the @uref{http://www.gnu.org,GNU}
project. It uses a single source file to produce both
online information and printed output.

@c much thinking about ...
It is often proposed to have a way to produce
@acronym{HTML} from Texinfo sources, like the GNU-Info
format. It is much simpler to create one converter instead
of writing all documentation new in @acronym{HTML}, cause
there is so much documentation in Texinfo all over
the world.

A few time ago @command{makeinfo} wasn't able to produce
@acronym{HTML} output format, but there are needth to have
@acronym{HTML}. This was the borning hour for
@command{texi2html}. The basic purpose of @file{texi2html}
is to convert Texinfo documents into HTML.


@menu
* HowToGetHTML::       Ways to get HTML files.
* whytexi2html::       Why texi2html and not makeinfo?.
@end menu
@c --------------------------------------------------------
@node HowToGetHTML, whytexi2html, Overview, Overview
@section Ways to get HTML
You would like to @acronym{HTML} files out of your Texinfo
files? There exist two ways which you can go.
This first is to use @command{makeinfo} itself to produce
@acronym{HTML} output. The second is to use
@command{texi2html}.

@c --------------------------------------------------------
@node whytexi2html, Installation, HowToGetHTML, Overview
@section Why @file{texi2html} and not @file{makeinfo}?
The basic idea of @command{makeinfo}'s @acronym{HTML}
output was to get an readable @acronym{HTML} output.
Nothing sophisticated nor good styling just readable.

The current development of texi2html is going into
different direction.

The main purpose is to get better styling, better design
etc. of the created @acronym{HTML} pages. This way is
supported using differnt command line options and of course
possible changings of the initialization file to fit your
own needs.

The main disadvantage of @acronym{makeinfo}'s
@acronym{HTML} output is your getting only one big file.
This is of course readable but not very usable. The problem
of this is, while you like to have splitted chapters or
nodes the Texinfo source has to be read at minimum twice
times. This makes it impossible to implement this in
@command{makeinfo}. This would result in complete new
implementation of @command{makeinfo}'s source.

@c think more about this????
In contrast to the HTML produced by @command{makeinfo
--html} (the @command{makeinfo} program is part of the
Texinfo distribution), the HTML output of @file{texi2html}
is highly configurable. Among other differences, with
@command{texi2html} allows you to customize your entire
page layout (like headers, footers, style sheets, etc),
split documents at various levels, and use
@command{latex2html} to convert @code{@@tex} sections.

@command{texi2html} should reasonably convert all Texinfo
4.0 constructs. If not, please send a bug report to
@email{texi2html@@mathematik.uni-kl.de}.

@c ========================================================
@node Installation, Customizing, whytexi2html, Top
@chapter Installation of @command{texi2html}
@cindex Installation
description of the installation process.
What do you need?
How?

@c ========================================================
@node Customizing, CustomizingExpand, Installation, Top
@chapter Customizing files
@cindex Installation
@opindex frames
@c 4.) Customizing files to output
@c   ==> -out_file, -prefix, -subdir, -split, -frames etc
Result based on using @option{-frames}

@example
texi2html -V -frames texi2html.texi
@end example
Explanation of the output differences against default,
whatever this is ;-)


@c ========================================================
@node CustomizingExpand, CustomizingPage, Customizing, Top
@chapter Customizing what gets expanded
@c 5.) Customizing what gets expanded
@c   ==> -expand, and latex2html
Test starting.

@option{-expand info}
@option{-expand tex}
Take a look at optionexpand.

@c ========================================================
@node CustomizingPage, CustHTML, CustomizingExpand, Top
@c
@c This file is part of the ``Texinfo to HTML Converter'' manual
@c which is part of the ``texi2html'' distribution.
@c
@c License:
@c    Copyright (C) 1999, 2000  Free Software Foundation, Inc.
@c
@c    This program is free software; you can redistribute it
@c    and/or modify it under the terms of the GNU General Public
@c    License as published by the Free Software Foundation;
@c    either version 2 of the License, or (at your option) any
@c    later version.
@c
@c    This program is distributed in the hope that it will be
@c    useful, but WITHOUT ANY WARRANTY; without even the implied
@c    warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
@c    PURPOSE.  See the GNU General Public License for more
@c    details.
@c
@c    You should have received a copy of the GNU General
@c    Public License along with this program; if not, write to
@c    the Free Software Foundation, Inc., 59 Temple Place, Suite
@c    330, Boston, MA  02111-1307  USA
@c
@c
@c Revisions:
@c 
@c
@c Author:
@c   Karl Heinz Marbaise <khmarbaise@gmx.de>
@c
@c Description:
@c   Here are the informations about customizing page
@c   layout.
@c
@c ========================================================
@chapter Customizing page layout
This chapter is designed to help you to change the
complete layout of the @acronym{HTML} output if you like to
do so.


a) General: Philosophy, and how it works@*
aa) Navigation panels@*
b) Top page@*
c) Section pages@*




@menu
* TipsNewDesign::           .
* CustPagePhil::            .
* CustPagePhilNav::         .
* CustPageTopPage::         .
* CustPageSectionPages::    .
* CustPageMiscPage::        .
@end menu
@c --------------------------------------------------------
@node TipsNewDesign,CustPagePhil,CustomizingPage,CustomizingPage
@section Tips how to create a new site design

Here you can find information how you should work to pick
up a new design with @command{texi2html}.


@c --------------------------------------------------------
@node CustPagePhil,CustPagePhilNav,TipsNewDesign,CustomizingPage
@section Page Layout and the philosophy

@menu
* CustPagePhilNav:: Navigation panels.
@end menu
@c -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
@node CustPagePhilNav,CustPageTopPage,CustPagePhil,CustomizingPage
@subsection Navigation panels

Head and foot Navigation panels.

@c --------------------------------------------------------
@node CustPageTopPage,CustPageSectionPages,CustPagePhilNav,CustomizingPage
@section Top Page
@c --------------------------------------------------------
@node CustPageSectionPages,CustPageMiscPage,CustPageTopPage,CustomizingPage
@section Section Pages
@c --------------------------------------------------------
@node CustPageMiscPage,CustPagePageHeadToc,CustPageSectionPages,CustomizingPage
@section Misc pages
Here you can find information about the creation of the
@dfn{ToC} (@i{Table Of content}), About---Page
etc. and specialy how to change them to get your own
design.

@acronym{ToC} @code{T2H_DEFAULT_print_toc_frame} in
@file{texi2html.init}

@menu
* CustPagePageHeadToc:: .
* CustPagePageHead::    .
* CustPagePageFoot::    .
@end menu

@c -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
@node CustPagePageHeadToc,CustPagePageHead,CustPageMiscPage,CustPageMiscPage
@subsection Table Of Contents

The following code is the original code out of the
initialization file (@pxref{InitFile,Initialization file}).

@example
sub T2H_DEFAULT_print_toc_frame
@{
  my $fh = shift;
  &$T2H_print_page_head($fh);
  print $fh <<EOT;
<H2>Content</H2>
EOT
  print $fh map @{s/HREF=/target=\"main\" HREF=/; $_;@} @@stoc_lines;
  print $fh "</BODY></HTML>\n";
@}
@end example

As you can see it is very simple Perl Code, which can
be changed more or less simple to fit you requirements
(@pxref{CustPagePageHead,,T2H_DEFAULT_print_page_head}).


@c -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
@node CustPagePageHead,CustPagePageFoot,CustPagePageHeadToc,CustPageMiscPage
@subsection Page header
Page Head @code{T2H_DEFAULT_print_page_head}

@c references on T2H_DOCTYPE
@c               T2H_AUTHORS
@example
sub T2H_DEFAULT_print_page_head
@{
  my $fh = shift; 
  my $longtitle = "$T2H_THISDOC@{title@}: $T2H_NAME@{This@}";
  print $fh <<EOT;
<HTML>
$T2H_DOCTYPE
<!-- Created on $T2H_TODAY by $THISPROG -->
<!-- 
$T2H_AUTHORS 
-->
<HEAD>
<TITLE>$longtitle</TITLE>

<META NAME="description" CONTENT="$longtitle">
<META NAME="keywords" CONTENT="$longtitle">
<META NAME="resource-type" CONTENT="document">
<META NAME="distribution" CONTENT="global">
<META NAME="Generator" CONTENT="$THISPROG">
$T2H_EXTRA_HEAD
</HEAD>

<BODY $T2H_BODYTEXT>
$T2H_AFTER_BODY_OPEN
EOT
@}
@end example

@c -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
@node CustPagePageFoot, ,CustPagePageHead,CustPageMiscPage
@subsection Page footer

Page Foot @code{T2H_DEFAULT_print_page_foot}
@c ========================================================
@node CustHTML, InitFile, CustomizingPage, Top
@c
@c This file is part of the ``Texinfo to HTML Converter'' manual
@c which is part of the ``texi2html'' distribution.
@c
@c License:
@c    Copyright (C) 1999, 2000  Free Software Foundation, Inc.
@c
@c    This program is free software; you can redistribute it
@c    and/or modify it under the terms of the GNU General Public
@c    License as published by the Free Software Foundation;
@c    either version 2 of the License, or (at your option) any
@c    later version.
@c
@c    This program is distributed in the hope that it will be
@c    useful, but WITHOUT ANY WARRANTY; without even the implied
@c    warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
@c    PURPOSE.  See the GNU General Public License for more
@c    details.
@c
@c    You should have received a copy of the GNU General
@c    Public License along with this program; if not, write to
@c    the Free Software Foundation, Inc., 59 Temple Place, Suite
@c    330, Boston, MA  02111-1307  USA
@c
@c
@c Revisions:
@c 
@c
@c Author:
@c   Karl Heinz Marbaise <khmarbaise@gmx.de>
@c
@c Description:
@c   Here are the informations about customizing HTML
@c   BODY, PRE- and AFTER Body.
@c
@c ========================================================
@chapter Customizing HTML
If you like to read the following section, it is assumed
you are famillar with @acronym{HTML}. If not, you shouldn't
read this, cause you don't know what we are talking about.

Here you can find information how to change the
@acronym{HTML} parts of a document. These are the
header, body etc.

These are the defaults which are
part of the distribution as @file{texi2html.init}.


How to do changes of the customization...
needed steps.
@c examples.

@menu
* CustHTMLBody::        Customizing BODY Text.
* CustHTMLHead::        Customizing Head.
* CustHTMLBodyText::    Customizing Head.
* CustHTMLPreBodyText:: Customizing Head.
* CustHTMLAfterBody::   Customizing Head.
@end menu
@c --------------------------------------------------------
@node CustHTMLBody,CustHTMLBodyText,,CustHTML
@section Body

@menu
* CustHTMLBodyText::    Body Text.
* CustHTMLPreBodyText:: PRE Body Text.
* CustHTMLAfterBody::   After Body Text.
@end menu
@c -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
@node CustHTMLBodyText,CustHTMLPreBodyText,CustHTMLBody,CustHTML
@subsection Body Text


@vindex T2H_BODYTEXT

@example
$T2H_BODYTEXT =
    . 'LANG="' . $T2H_LANG . '" BGCOLOR="#FFFFFF" '
    . 'TEXT="#000000" LINK="#0000FF" '
    . 'VLINK="#800080" ALINK="#FF0000"';
@end example

If you like to change the basic color combination, you can
change the entry @var{T2H_BODYTEXT}.

@c -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
@node CustHTMLPreBodyText,CustHTMLAfterBody,CustHTMLBodyText,CustHTML
@subsection Body Text
@c -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
@node CustHTMLAfterBody,CustHTMLHead,CustHTMLPreBodyText,CustHTML
@subsection After Body Text

@vindex T2H_AFTER_BODY_OPEN
@vindex T2H_PRE_BODY_CLOSE

@vindex T2H_EXTRA_HEAD

@example
# text inserted after <BODY ...>
$T2H_AFTER_BODY_OPEN = '';

#text inserted before </BODY>
$T2H_PRE_BODY_CLOSE = '';

# this is used in footer
$T2H_ADDRESS = "by <I>$T2H_USER</I> " if $T2H_USER;
$T2H_ADDRESS .= "on <I>$T2H_TODAY</I>";

# this is added inside <HEAD></HEAD> after <TITLE> and some META NAME stuff
# can be used for <style> <script>, <meta> tags
$T2H_EXTRA_HEAD = '';
@end example

The default output into the @acronym{HTML} file.
@xref{OptionDocType}.


The following code is produced by
@code{T2H_DEFAULT_print_page_head}.

Detailed information can be found at
@ref{CustPagePageHead}.

@example
<HTML>
$T2H_DOCTYPE
<!-- Created on $T2H_TODAY by $THISPROG -->
<!-- 
$T2H_AUTHORS
-->
<HEAD>
<TITLE>$longtitle</TITLE>

<META NAME="description" CONTENT="$longtitle">
<META NAME="keywords" CONTENT="$longtitle">
<META NAME="resource-type" CONTENT="document">
<META NAME="distribution" CONTENT="global">
<META NAME="Generator" CONTENT="$THISPROG">
$T2H_EXTRA_HEAD
</HEAD>

<BODY $T2H_BODYTEXT>
$T2H_AFTER_BODY_OPEN
@end example

@c --------------------------------------------------------
@node CustHTMLHead,,CustHTMLAfterBody,CustHTML
@section Head
@c ========================================================
@node InitFile, IFOs, CustHTML, Top
@c
@c This file is part of the ``Texinfo to HTML Converter'' manual
@c which is part of the ``texi2html'' distribution.
@c
@c License:
@c    Copyright (C) 1999, 2000  Free Software Foundation, Inc.
@c
@c    This program is free software; you can redistribute it
@c    and/or modify it under the terms of the GNU General Public
@c    License as published by the Free Software Foundation;
@c    either version 2 of the License, or (at your option) any
@c    later version.
@c
@c    This program is distributed in the hope that it will be
@c    useful, but WITHOUT ANY WARRANTY; without even the implied
@c    warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
@c    PURPOSE.  See the GNU General Public License for more
@c    details.
@c
@c    You should have received a copy of the GNU General
@c    Public License along with this program; if not, write to
@c    the Free Software Foundation, Inc., 59 Temple Place, Suite
@c    330, Boston, MA  02111-1307  USA
@c
@c
@c Revisions:
@c 
@c
@c Author:
@c   Karl Heinz Marbaise <khmarbaise@gmx.de>
@c
@c Description:
@c   Here you can find the description on the
@c   initialization files.
@c
@c ========================================================
@chapter Initialization file
@c
@cindex configure
@cindex texi2html.init
@cindex texi2htmlrc, global initialization
@cindex .texi2htmlrc, user initialization
@c
@opindex sysconfdir
@opindex init_file
@file{texi2html.init}


@menu
* InitFileBasics::     The basics about
                         initialization files.
* InitFileGlobal::     Global initialization file.
* InitFileUser::       User initialization file.
* InitFileLoad::       Loadable initialization file.
@end menu

@c --------------------------------------------------------
@node InitFileBasics,InitFileGlobal,InitFile,InitFile
@section The basics about init files

Initialization options are read first from
@file{/usr/local/etc/texi2htmlrc} (the exact location being
changeable with the @option{--sysconfdir=dir} option to the
@command{configure} script), then from
@file{$HOME/.texi2htmlrc}, then any command-line options
including @option{-init_file} option; with later settings
overriding earlier ones.

The default initialization options are defined in the
@file{texi2html.init} file contained in the @b{Texi2html}
distribution (which gets included near the beginning of the
@command{texi2html} script that gets installed).

To customize @file{texi2html} it is best if you copy the
appropriate sections from the @file{texi2html.init}
contents into an appropriate local initialization file,
make the necessary changes there, and then have
@command{texi2html} read this initialization file by one of
the means described above.

For an example on what you can produces with
@command{texi2html} have a look at the following sites:
@uref{http://www.singular.uni-kl.de/Manual/html/}


@c --------------------------------------------------------
@node InitFileGlobal,InitFileUser,InitFileBasics,InitFile
@section Global initialization file
@c --------------------------------------------------------
@node InitFileUser,InitFileLoad,InitFileGlobal,InitFile
@section User initialization file
@c --------------------------------------------------------
@node InitFileLoad,,InitFileUser,InitFile
@section Loadable initialization file
@opindex init_file
@option{-init_file}

@c @ref{InitFile}

@c --------------------------------------------------------
@node IFOs, Options, InitFile, Top
@c
@c This file is part of the ``Texinfo to HTML Converter'' manual
@c which is part of the ``texi2html'' distribution.
@c
@c License:
@c    Copyright (C) 1999, 2000  Free Software Foundation, Inc.
@c
@c    This program is free software; you can redistribute it
@c    and/or modify it under the terms of the GNU General Public
@c    License as published by the Free Software Foundation;
@c    either version 2 of the License, or (at your option) any
@c    later version.
@c
@c    This program is distributed in the hope that it will be
@c    useful, but WITHOUT ANY WARRANTY; without even the implied
@c    warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
@c    PURPOSE.  See the GNU General Public License for more
@c    details.
@c
@c    You should have received a copy of the GNU General
@c    Public License along with this program; if not, write to
@c    the Free Software Foundation, Inc., 59 Temple Place, Suite
@c    330, Boston, MA  02111-1307  USA
@c
@c
@c Revisions:
@c 
@c
@c Author:
@c   Karl Heinz Marbaise <khmarbaise@gmx.de>
@c
@c Description:
@c   Here you can find the description on the
@c   initialization files options.
@c
@c --------------------------------------------------------
@section Initialization file options
This section describes in detail all options that can be used
only in the initialization file (@file{texi2html.init}),
and cannot be specified on the command line.
This means the only way to change those
options is first to copy the original @file{texi2html.init}
to e.g.@: @file{texi2html.init.myown} and make changes to fit
your needs.

@menu
* IFOnumber::             Number sectioning.
* IFOmenu::               Avoid menu redundancy.
* IFOCenterImage::        Center Image.
* IFOExampleIndentCell::  Example Indent Cell.
* IFOSampleIndentCell::   Sample Indent Cell.
* IFOSmallFontSize::      Small Font Size.
* IFOTopHeading::         Top Heading.
* IFOIndexChapter::       Index Chapter.
* IFOSplitIndex::         Split Index.
* IFOhrefDirInsteadFile:: HREF Dir Instead file.
@end menu

@c +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
@node IFOnumber, IFOmenu, IFOs, IFOs
@subsection Number sections.
@vindex T2H_NUMBER_SECTIONS
@vindex T2H_NODE_NAME_IN_MENU
if set, and @var{$T2H_NUMBER_SECTIONS} is set, then use node
names in menu entries, instead of section names

@var{$T2H_NODE_NAME_IN_MENU} = 0;

@c +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
@node IFOmenu, IFOCenterImage, IFOnumber, IFOs
@subsection Avoid menu redundancy
@c not sure if correct?
@cindex menu, redundancy
@vindex T2H_AVOID_MENU_REDUNDANCY
If set, and menu entry equals menu description, then do not print
menu description.  Likewise, if node name equals entry name, do
not print entry name.
@var{$T2H_AVOID_MENU_REDUNDANCY} = 1;

@c +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
@node IFOCenterImage, IFOExampleIndentCell, IFOmenu, IFOs
@subsection Center Image
@cindex images, center
@vindex T2H_CENTER_IMAGE
if set, center @@image by default
otherwise, do not center by default
@var{$T2H_CENTER_IMAGE} = 1;

@c +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
@node IFOExampleIndentCell, IFOSampleIndentCell, IFOCenterImage, IFOs
@subsection Example Indent Cell
@cindex example, indentation
@vindex T2H_EXAMPLE_INDENT_CELL
used as indentation for block enclosing command
@code{@@example}, etc If not empty, must be enclosed in
@code{<td></td>}
@var{$T2H_EXAMPLE_INDENT_CELL} = '<td>&nbsp;</td>';

@c +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
@node IFOSampleIndentCell, IFOSmallFontSize, IFOExampleIndentCell, IFOs
@subsection Small Example Indent
@cindex example, small indent
@vindex T2H_SMALL_EXAMPLE_INDENT_CELL
same as above, only for @code{@@small}
$T2H_SMALL_EXAMPLE_INDENT_CELL = "<td>&nbsp;</td>";

@c +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
@node IFOSmallFontSize, IFOTopHeading, IFOSampleIndentCell, IFOs
@subsection Small Font Size
@cindex Font Size, small
@vindex T2H_SMALL_FONT_SIZE
# font size for @@small
$T2H_SMALL_FONT_SIZE = "-1";

@c +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
@node IFOTopHeading, IFOIndexChapter, IFOSmallFontSize, IFOs
@subsection Top Heading
@vindex T2H_TOP_HEADING
if non-empty, and no @code{@@..heading} appeared in Top
@c here should be a reference to Texinfo Manual
@c @@heading ??
node, then use this as header for top node/section,
otherwise use value of  @code{@@settitle} or
@code{@@shorttitle} (in that order)
$T2H_TOP_HEADING = "";

@c +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
@node IFOIndexChapter, IFOSplitIndex, IFOTopHeading, IFOs
@subsection Index Chapter
@cindex Chapter, Index
@vindex T2H_INDEX_CHAPTER
if set, use this chapter for @strong{Index} button, else
use first chapter whose name matches @strong{index} (case insensitive)
$T2H_INDEX_CHAPTER = "";

@c +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
@node IFOSplitIndex, IFOhrefDirInsteadFile, IFOIndexChapter, IFOs
@subsection Split Index
@cindex Index, split
@vindex T2H_SPLIT_INDEX
if set and @var{$T2H_SPLIT} is set, then split index pages
at the next letter after they have more than that many
entries

$T2H_SPLIT_INDEX = 100;

@c +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
@node IFOhrefDirInsteadFile, , IFOSplitIndex, IFOs
@subsection HREF Dir Instead File.
@c Not very good? :-/
@cindex HREF Dir instead file
@vindex T2H_HREF_DIR_INSTEAD_FILE
if set (e.g., to @file{index.html}) replace @strong{HREF}'s
to this file  (i.e., to @file{index.html}) by @file{./}

$T2H_HREF_DIR_INSTEAD_FILE = "";
@c ========================================================
@c @include extfile.texi obsolete now, is not documented!
@c ========================================================
@node Options, Reference, IFOs, Top
@c
@c This file is part of the ``Texinfo to HTML Converter'' manual
@c which is part of the ``texi2html'' distribution.
@c
@c License:
@c    Copyright (C) 1999, 2000  Free Software Foundation, Inc.
@c
@c    This program is free software; you can redistribute it
@c    and/or modify it under the terms of the GNU General Public
@c    License as published by the Free Software Foundation;
@c    either version 2 of the License, or (at your option) any
@c    later version.
@c
@c    This program is distributed in the hope that it will be
@c    useful, but WITHOUT ANY WARRANTY; without even the implied
@c    warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
@c    PURPOSE.  See the GNU General Public License for more
@c    details.
@c
@c    You should have received a copy of the GNU General
@c    Public License along with this program; if not, write to
@c    the Free Software Foundation, Inc., 59 Temple Place, Suite
@c    330, Boston, MA  02111-1307  USA
@c
@c
@c Revisions:
@c 
@c
@c Author:
@c   Karl Heinz Marbaise <khmarbaise@gmx.de>
@c
@c Description:
@c   Here you can find the description on the
@c   command line options.
@c
@c ========================================================
@chapter Command Line Options

@menu
* OptionDebug::               Debugging.
* OptionDocType::             DocType (HTML)
* OptionCheck::               Checking files.
* OptionExpand::              Expanding info, tex areas etc.
* OptionGlossary::            Glossary.
* OptionInvisible::           Invisible.
* OptionIso::                 Iso.
* OptionInclude::             Include directories.
* OptionTopFile::             Top File.
* OptionTocFile::             Table of content File.
* OptionFrames::              Frames.
* OptionMenu::                Menus.
* OptionNumber::              Number sections.
* OptionSplit::               Splitting.
* OptionSectionNavigation::   Navigation.
* OptionSubDir::              Subdirectory.
* OptionShortExt::            Short extension.
* OptionPrefix::              Prefix.
* OptionOutput::              Output.
* OptionShortRef::            Short Ref.
* OptionIndexSummary::        Index Summary.
* OptionVerbose::             Verbose.
* OptionLanguage::            Language.
* OptionL2H::                 La@TeX{}2HTML.
@end menu


@c --------------------------------------------------------
@node OptionDebug, OptionDocType, Options, Options
@section Debugging
@cindex Debugging
@vindex DEBUG_TOC
@vindex DEBUG_INDEX
@vindex DEBUG_BIB
@vindex DEBUG_GLOSS
@vindex DEBUG_DEF
@vindex DEBUG_HTML
@vindex DEBUG_USER
@vindex DEBUG_L2H
@opindex debug

@option{-debug}

debugging: 0 --- no debugging; other values; see beginning
of texi2html

@var{$DEBUG_TOC}   =  1;
@var{$DEBUG_INDEX} =  2;
@var{$DEBUG_BIB}   =  4;
@var{$DEBUG_GLOSS} =  8;
@var{$DEBUG_DEF}   = 16;
@var{$DEBUG_HTML}  = 32;
@var{$DEBUG_USER}  = 64;
@var{$DEBUG_L2H}   = 128;

@c --------------------------------------------------------
@node OptionDocType, OptionCheck, OptionDebug, Options
@section DocType
@cindex HTML, Doc Type
@opindex doctype
@vindex T2H_DOCTYPE
@option{-doctype}

@example
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
@end example

@c --------------------------------------------------------
@node OptionCheck, OptionExpand, OptionDocType, Options
@section Check
@cindex Texinfo, checking
@opindex check
@vindex T2H_CHECK
@option{-check}
if set, only check files and give the list of all things
that look like untranslated Texinfo commands

@c --------------------------------------------------------
@node OptionExpand, OptionGlossary, OptionCheck, Options
@section Expand
@opindex expand
@vindex T2H_EXPAND
@option{-expand}
if set to @strong{tex} (or, @strong{info}) expand
@code{@@iftex} and @code{@@tex} (or, @code{@@ifinfo})
sections else, neither expand @code{@@iftex}, @code{@@tex},
nor @code{@@ifinfo} sections

@c $T2H_EXPAND = "info";

@c --------------------------------------------------------
@node OptionGlossary, OptionInvisible, OptionExpand, Options
@section Glossary
@cindex HTML, Glossary
@cindex Texinfo, Glossary
@opindex glossary
@vindex T2H_USE_GLOSSARY
@option{-glossary}
if set, uses section named @strong{Footnotes} for glossary

@c --------------------------------------------------------
@node OptionInvisible, OptionIso, OptionGlossary, Options
@section Invisible
@cindex Mark, invisible
@cindex invisible, Mark
@opindex invisible
@vindex T2H_INVISIBLE_MARK
@option{-invisible}
@var{$T2H_INVISIBLE_MARK} is the text used to create
invisible destination anchors for index links (you can for
instance use the @file{invisible.xbm} file shipped with
this program). This is a workaround for a known bug of many
@acronym{WWW} browsers, including Netscape. For me, it
works fine without it --- on the contrary: if there, it
inserts space between headers and start of text (obachman
3/99)

@example
$T2H_INVISIBLE_MARK = "";
# $T2H_INVISIBLE_MARK = '&#160;';
@end example

@c --------------------------------------------------------
@node OptionIso, OptionInclude, OptionInvisible, Options
@section Iso
@cindex ISO8859
@cindex Copyright
@opindex iso
@vindex T2H_USE_ISO
@option{-iso}

if set, ISO8859 characters are used for special symbols
(like Copyright @code{@copyright{}}, etc)

$T2H_USE_ISO = 0;

@c --------------------------------------------------------
@node OptionInclude, OptionTopFile, OptionIso, Options
@section Include Directory
@vindex Include directories
@opindex I
@vindex T2H_INCLUDE_DIRS
@option{-I}

list directories where @code{@@include} files are searched for
(besides the directory of the doc file) additional
@option{-I} args are add to this list.

@@T2H_INCLUDE_DIRS = (".");

@c --------------------------------------------------------
@node OptionTopFile, OptionTocFile, OptionInclude, Options
@section Top File
@cindex Top Level file
@cindex HTML, index.html
@opindex top_file
@vindex T2H_TOP_FILE
@option{-top_file}
uses file of this name for top-level file
extension is manipulated appropriately, if necessary.
If empty, @file{<basename of document>.html} is used.
Typically, you would set this to @file{index.html}.

$T2H_TOP_FILE = "";

@c --------------------------------------------------------
@node OptionTocFile, OptionFrames, OptionTopFile, Options
@section Table Of content File
@cindex Table of content file
@opindex toc_file
@vindex T2H_TOC_FILE
@option{-toc_file}
uses file of this name for table of contents.  File extension
is manipulated appropriately, if necessary. If empty,
@file{<basename of document>_toc.html} is used.

$T2H_TOC_FILE = "";

@c --------------------------------------------------------
@node OptionFrames, OptionMenu, OptionTocFile, Options
@section Frames
@vindex HTML, frames
@vindex HTML 4.0, frames
@opindex frames
@vindex T2H_FRAMES
@option{-frames}
if set, output two additional files which use HTML 4.0
@b{frames}.

$T2H_FRAMES = 0;

@c --------------------------------------------------------
@node OptionMenu, OptionNumber, OptionFrames, Options
@section Menus
@cindex HTML, menu
@cindex Texinfo, menu
@opindex menu
@opindex nomenu
@vindex T2H_SHOW_MENU
@option{-menu} or @option{-nomenu} if set, show the Texinfo
menus

$T2H_SHOW_MENU = 1;

@c --------------------------------------------------------
@node OptionNumber, OptionSplit, OptionMenu, Options
@section Number sections
@cindex Section numbering
@opindex number
@opindex nonumber
@vindex T2H_NUMBER_SECTIONS
@option{-number} @option{-nonumber}
if set, number sections and show section names and numbers
in references and menus

@c Just think about it?
@c @defvar $T2H_NUMBER_SECTIONS
@c @c = 1;
@c @end defvar

@c --------------------------------------------------------
@node OptionSplit, OptionSectionNavigation, OptionNumber, Options
@section Split
@cindex HTML, split
@cindex File, split
@opindex split
@vindex T2H_SPLIT
@option{-split section|chapter|none}
if set to @strong{section} (resp. @strong{chapter}) create one
@acronym{HTML} file per (sub)section (resp. chapter) and
separate pages for Top, ToC, Overview, Index, Glossary,
About.  Otherwise, create a monolithic @acronym{HTML} file that
contains the whole document.

#$T2H_SPLIT = 'section';
$T2H_SPLIT = undef;

@c --------------------------------------------------------
@node OptionSectionNavigation, OptionSubDir, OptionSplit, Options
@section Section navigation
@cindex HTML, Navigation
@opindex section_navigation
@opindex no-section_navigation
@vindex T2H_SECTION_NAVIGATION
@option{-section_navigation}|
@option{-no-section_navigation}

if set, then navigation panels are printed at the beginning
of each section and, possibly at the end (depending on
whether or not there were more than 
@var{$T2H_WORDS_IN_PAGE} words on page). This is most useful
if you do not want to have section navigation on
@option{-split chapter}

@c @vindex T2H_SECTION_NAVIGATION
@c @defvar $T2H_SECTION_NAVIGATION
@c = 1;
@c @end defvar

@c --------------------------------------------------------
@node OptionSubDir, OptionShortExt, OptionSectionNavigation, Options
@section Subdirectory
@cindex Subdirectory
@vindex T2H_SUBDIR
@option{-subdir}
If set, then put result files in the specified directory.
If not set, then result files are put into the current directory.

@c #$T2H_SUBDIR = 'html';
@var{$T2H_SUBDIR} = undef;

@c --------------------------------------------------------
@node OptionShortExt, OptionPrefix, OptionSubDir, Options
@section Short extension
@cindex HTML, .htm extension
@cindex HTML, .html extension
@cindex extension, .html
@cindex extension, .htm
@vindex T2H_SHORTEXTN
@opindex short_extn
@option{-short_extn}
If this is set, then all @acronym{HTML} files will have extension
@file{.htm} instead of @file{.html}. This is helpful when
shipping the document to DOS-based systems.
@var{$T2H_SHORTEXTN} = 0;

@c --------------------------------------------------------
@node OptionPrefix, OptionOutput, OptionShortExt, Options
@section Prefix
@cindex Prefix
@vindex T2H_PREFIX
@opindex prefix
@option{-prefix}
Set the output file prefix, prepended to all @file{.html},
@file{.gif} and @file{.pl} files.
By default, this is the basename of the document

@var{$T2H_PREFIX} = "";

@c --------------------------------------------------------
@node OptionOutput, OptionShortRef, OptionPrefix, Options
@section Output filename
@cindex Output filename
@cindex Filename, output
@vindex T2H_OUT
@opindex o
@opindex out_file

@option{-o filename}|@option{-out_file}
If set, generate monolithic document output @acronym{HTML}
into @file{filename}.

@c --------------------------------------------------------
@node OptionShortRef, OptionIndexSummary, OptionOutput, Options
@section Short Cross References
@cindex References, short
@cindex sections without numbers
@vindex T2H_SHORT_REF
@opindex short_ref
@option{-short_ref}
if set cross-references are given without section numbers

@c --------------------------------------------------------
@node OptionIndexSummary, OptionVerbose, OptionShortRef, Options
@section Index Summary
@cindex Index, Summary
@cindex Summary Index
@cindex HTML, Index
@vindex T2H_IDX_SUMMARY
@opindex idx_sum
@option{-idx_sum}
If value is set, then for each @code{@@prinindex $what}
@file{$docu_name_$what.idx} is created which contains lines of the
form @strong{$key\t$ref} sorted alphabetically (case
matters).

@c --------------------------------------------------------
@node OptionVerbose, OptionLanguage, OptionIndexSummary, Options
@section Verbose output
@cindex Output, verbose
@cindex Verbose output
@cindex Debugging, verbose output
@vindex T2H_VERBOSE
@opindex verbose
@option{-verbose}
if set, chatter about what we are doing.

@c --------------------------------------------------------
@node OptionLanguage, OptionL2H, OptionVerbose, Options
@section Language Support
@cindex Language Support
@cindex Support different languages
@vindex $T2H_LANG
@vindex $T2H_WORDS
@opindex lang
@option{-lang}
For page titles, use
@code{$T2H_WORDS->@{$T2H_LANG@}->@{...@}} as title. To add
a new language, supply list of titles (see @var{$T2H_WORDS}),
and use ISO 639 language codes (see e.g.@: perl module
@file{Locale-Codes-1.02.tar.gz} for definitions).

If you don't give a @option{-lang} then we got it from the
Texinfo source file (@@documentlanguage
@c Put a table with the language codes here!
@c Or better put a reference into the Texinfo
@c Manual, which has a table of ISO 639-Codes.
@c
@c Currently the @xref etc. does not work with
@c external documents, cause we don't know
@c reference (anchor) value or there is no way
@c to get it.
@c The following reference does only work correctly
@c in Info!!!
@pxref{documentlanguage,,,Texinfo}). If there is no
@code{@@documentlanguage} we use the default @code{en} for
the language.
@c
@c put some information about Month names etc. here
@c $MONTH_NAMES !!
@c Supplemental should be a naming scheme for variables in
@c different languages (MONTH_NAMES_DE etc.)
@c --------------------------------------------------------
@node OptionL2H, , OptionLanguage, Options
@section La@TeX{}2HTML for @code{@@math} and @code{@@tex}
@cindex La@TeX{}2HTML
@cindex Conversion of @@math and @@tex
@cindex @@tex
@cindex @@math
@vindex T2H_L2H
@opindex l2h
@option{-l2h}
if set, uses @command{latex2html} for generation of math
content.

@menu
* OptionL2HL2H::    Where to find La@TeX{}2HTML.
* OptionL2HSkip::   Skip calling La@TeX{}2HTML.
* OptionL2Htmp::    Temporary files for La@TeX{}2HTML.
@end menu

@c --------------------------------------------------------
@node OptionL2HL2H, OptionL2HSkip, OptionL2H, OptionL2H
@subsection Where to find @command{latex2html}
@cindex location, La@TeX{}2HTML
@cindex La@TeX{}2HTML, location
@vindex T2H_L2H_L2H
@opindex l2h_l2h
@option{-l2h_l2h}
name/location of @command{latex2html} program.

@c --------------------------------------------------------
@node OptionL2HSkip, OptionL2Htmp, OptionL2HL2H, OptionL2H
@subsection Skip calling La@TeX{}2HTML
@cindex La@TeX{}2HTML, skip calling
@vindex T2H_L2H_SKIP
@opindex l2h_skip
@option{-l2h_skip}
If set, skips actual call to @command{latex2html}: tries to
reuse previously generated content, instead.

@c --------------------------------------------------------
@node OptionL2Htmp, , OptionL2HSkip, OptionL2H
@subsection Temporary files for La@TeX{}2HTML
@cindex Temporary, La@TeX{}2HTML
@cindex La@TeX{}2HTML, Temporary files
@vindex T2H_L2H_TMP
@opindex l2h_tmp
@option{-l2h_tmp}
If set, l2h uses this directory for temporary files.  The
path leading to this directory may not contain a dot (i.e.,
a @samp{.}); otherwise, l2h will fail.
@c ========================================================
@node Reference, Indexop, Options, Top
@c
@c This file is part of the ``Texinfo to HTML Converter'' manual
@c which is part of the ``texi2html'' distribution.
@c
@c License:
@c    Copyright (C) 1999, 2000  Free Software Foundation, Inc.
@c
@c    This program is free software; you can redistribute it
@c    and/or modify it under the terms of the GNU General Public
@c    License as published by the Free Software Foundation;
@c    either version 2 of the License, or (at your option) any
@c    later version.
@c
@c    This program is distributed in the hope that it will be
@c    useful, but WITHOUT ANY WARRANTY; without even the implied
@c    warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
@c    PURPOSE.  See the GNU General Public License for more
@c    details.
@c
@c    You should have received a copy of the GNU General
@c    Public License along with this program; if not, write to
@c    the Free Software Foundation, Inc., 59 Temple Place, Suite
@c    330, Boston, MA  02111-1307  USA
@c
@c
@c Revisions:
@c 
@c
@c Author:
@c   Karl Heinz Marbaise <khmarbaise@gmx.de>
@c
@c Description:
@c   Here you can find the description on all
@c   subs in the original Perl file.
@c
@c ========================================================
@appendix Function Reference

@menu
* Refptocframe::           Print ToC Frame.
* Refpphead::              Print page head.
@end menu

@c Global variables:
@c T2H_USER which is created throught main part
@c (texi2html.pl)
@c You can use it. (On Windows? On Unix ?)
@c --------------------------------------------------------
@node Refptocframe,Refpphead,,Reference
@appendixsec Print ToC Frame


@defun T2H_DEFAULT_print_toc_frame (FileName)
@sp 1
Description of the subroutine.
What does it do? Which parameters it needs etc.
@end defun


@c --------------------------------------------------------
@node Refpphead,,Refptocframe,Reference
@appendixsec Print Page Head
@defun T2H_DEFAULT_print_page_head (FileName)
@sp 1
Description of the subroutine.
What does it do? Which parameters it needs etc.
@end defun
@c ========================================================
@c commandline option index.
@node Indexop, Indexvr, Reference, Top
@appendix Indices
@appendixsec Command Line Option Index
@printindex op
@c --------------------------------------------------------
@node Indexvr, Indexcp, Indexop, Top
@appendixsec Variable Index
@printindex vr
@c --------------------------------------------------------
@node Indexcp, , Indexvr, Top
@appendixsec Concept Index
@printindex cp
@c printindex init file options dito.
@c concept index.
@bye