' region is ignored. The configuration file array, `@EXPAND',
holds the names of regions which should be expanded. The only region
name present in `@EXPAND' in the default case is `html'.
If `--nomenu' is set, the `@menu' sections are not expanded
(variable `$SHOW_MENU'). The default is to expand `@menu' sections.
File: texi2html.info, Node: Texinfo related options, Next: Page layout options, Prev: Expansion, Up: Invoking texi2html
4.4 Command line options related to Texinfo language features
=============================================================
Miscalleneous Texinfo related things may be specified via command line
options.
`--lang=LANG'
Sets the document language similar to the Texinfo directive,
`@documentlanguage LANG' (variable `$LANG'). The default is `en',
that is, use the english language strings.
`-DVAR'
Sets VAR. Equivalent to, `@set VAR 1', in Texinfo.
`-UVAR'
Clears VAR. Equivalent to, `@clear VAR', in Texinfo.
`-PDIR'
Prepend DIR to the list of directories to search for `@include'
files (the associated array is `@PREPEND_DIRS', empty in the
default case).
`-IDIR'
Append DIR to the list of directories to search for `@include'
files (the associated array is `@INCLUDE_DIRS', empty in the
default case).
The include files are always searched for in the current directory.
File: texi2html.info, Node: Page layout options, Next: Style options, Prev: Texinfo related options, Up: Invoking texi2html
4.5 Page layout related command line options
============================================
If the `--frames' option is specified, HTML frames are used. A file
describing the frame layout is generated, and the document page is
associated with a frame where the short table of content appears
(variable `$FRAMES'). The default is not to use frames.
It is also possible to suppress the section navigation panel with `--nosec-nav'
(variable `$SECTION_NAVIGATION', the default is to output all the
navigation panels), and to specify whether footnotes should appear at
the foot of the same page which contains the reference to the note or
on a separate page with `--separated-footnotes' (variable `$SEPARATED_FOOTNOTES').
The default is to have separated footnotes.
File: texi2html.info, Node: Style options, Next: Expanding TeX regions, Prev: Page layout options, Up: Invoking texi2html
4.6 Customizing the HTML and text style
=======================================
Miscalleneous style changes may be achieved with command line options.
`--doctype=DTD'
`--frameset-doctype=DTD'
You can specify the document DTD by setting these options. `--frameset-doctype'
applies to the file describing the frames when frames are used
(corresponding variables are `$DOCTYPE' and `$FRAMESET_DOCTYPE').
The default for the document doctype is:
And for the frameset doctype:
`--iso'
If this option is set, ISO8859 entities are used for some special
symbols, like Copyright (C) (variable `$USE_ISO'). It is the
default.
`--css-include=FILE'
This command line switch provides for the inclusion of an external
Cascading Style Sheet (CSS) file. More than one file may be
specified, and `-' stands for the standard input (array `@CSS_FILES').
The option use is the same than for `makeinfo' and is described
extensively in *Note HTML CSS: (texinfo)HTML CSS. Briefly, the
CSS `@import' lines from the external file CSS file are pasted
before the `texi2html' CSS rules, and the external file CSS rules
are pasted after the `texi2html' CSS rules.
`--html-xref-prefix=PATH'
This option sets the base directory for external HTML texinfo
manuals (variable `$EXTERNAL_DIR'). Defaults to `../'.
`--def-table'
If this option is set, HTML tables are used to format definition
commands, rather than HTML definition tables (variable `$DEF_TABLE').
Default is false.
`--short-ref'
If this option is set, cross-references are given without section
numbers (variable `$SHORT_REF'). Default is false.
`--number'
If this option is set, sections are numbered (variable `$NUMBER_SECTIONS').
This is the default.
`--toc-links'
If this option is set, links from headings to TOC entries are
created (variable `$TOC_LINKS'). Default is false.
File: texi2html.info, Node: Expanding TeX regions, Next: Using init files, Prev: Style options, Up: Invoking texi2html
4.7 Expanding `@tex' and `@math' regions using LaTeX2HTML
=========================================================
It is possible to use LaTeX2HTML (http://www.latex2html.org/) to
process `@tex' regions and `@math{}' commands. This is an attractive
way to display mathematical constructs in the HTML manual. The `--l2h'
option activates this feature (variable $L2H). It is usually desirable
to expand `@tex' sections when this option is specified (*note
Expansion::). The default is not to use this feature.
The `--l2h-l2h=PROGRAM' option enables changing the name/location of
the LaTeX2HTML program processing TeX regions (variable `$L2H_L2H').
The default is `latex2html'.
`--l2h-tmp' sets the directory used for temporary files, this name
shouldn't contain a dot `.' (variable is `$L2H_TMP'). Defaults to the
current dir.
The file specified by `--l2h-file' is used as LaTeX2HTML init file.
It is searched at the same places than init files (*note Using init
files::), and the default is `l2h.init'.
File: texi2html.info, Node: Using init files, Prev: Expanding TeX regions, Up: Invoking texi2html
4.8 Use initialization files for fine tuning
============================================
Initialization variables are read first from
`/usr/local/share/texi2html/Config' (the exact location being
changeable with the `--pkgdatadir=dir' option of the `configure'
script, see *Note Installation::), `/usr/local/etc/texi2html/Config'
(the exact location being changeable with the `--sysconfdir=dir' option
of the `configure' script, see *Note Installation::), from `./Config'
then from `$HOME/.texi2html/Config'. Any command-line option can
override the corresponding option set in init file, and the option `--init-file'
specifies an init file to be loaded, with later settings overriding
earlier ones.
The init files specified with `--init-file' are searched first in
the current directory, then in the `$HOME/.texi2html/' directory, in
the `/usr/local/etc/texi2html/' directory and lastly in the
`/usr/local/share/texi2html/' directory.
A file is also included based on the language selected, by `$LANG', `--lang'
or `@documentlanguage'. If no language was selected `en' is considered
to be the language. All the files with name the language name in
`/usr/local/share/texi2html/i18n/', `/usr/local/etc/texi2html/i18n/',
`$HOME/.texi2html/i18n/' and then `./i18n/' are included.
The default initialization options are defined in the
`texi2html.init' file contained in the `texi2html' distribution (which
gets included near the beginning of the `texi2html' script that gets
installed).
To customize `texi2html' it is best if you copy the appropriate
sections from the `texi2html.init' contents into an appropriate local
initialization file, make the necessary changes there, and then have
`texi2html' read this initialization file by one of the means described
above.
File: texi2html.info, Node: Initialization files, Next: Changing the page layout, Prev: Invoking texi2html, Up: Top
5 Overview of initialization files content and loading
******************************************************
The initialization files are `perl' files, read as explained in *Note
Using init files::. You don't need to know much of `perl' to do some
simple changes in variable values, however, to be able to really take
advantage of all the features of the initialization file, a good
knowledge of `perl' is required.
In initialization file two kind of variables appear. These are normal
variables (including arrays and hashes) and references on functions.
The later permits the dynamic redefinition of functions used to produce
the HTML manual. You should be able to change the value of some normal
variables without a deep knowledge of `perl', by looking at the
existing examples. The possible mistakes in that case could be omitted
`;', and bad quoting.
Initialization file are loaded from the main program by the mean of
a `require', while in the `Texi2HTML::Config' namespace. This means
that the namespace of the main program and the namespace of
inititalization files are distinct, which ensures that no name clash
should happen. The variables are declared with the `our' specifier,
such that it should be possible to use the `use strict' pragma in the
initialization file code.
To avoid messing with the variables in the `main' namespace all the
global variables which could be of use in the init files are in the
`Texi2HTML' namespace. Notice that the functions of the main program
are still in the `main' namespace.
* Menu:
* Redefining functions:: Function redefinition is achieved with
redefinition of references on functions.
* Function prototypes:: Conventions used in that manual for function
reference prototypes display.
File: texi2html.info, Node: Redefining functions, Next: Function prototypes, Up: Initialization files
5.1 Redefining functions in initialization files
================================================
To redefine a function you must replace the corresponding funtion
reference with a reference on your function. Thus you should write
your function, give it a name you are certain it is unique in the
`Texi2HTML::Config' namespace, and override the value of the function
reference with your own function reference. When another function from
the main program (or from another functions of an initialization file)
calls the reference, your function will be used.
For example the function reference corresponding with the function
called when doing an anchor is called `$anchor'. Thus if you want to
override the corresponding function you could write:
# override the function reference
$anchor = \&my_own_function;
# the function reference now refers to
sub my_own_function {
# process arguments and return an html anchor
}
File: texi2html.info, Node: Function prototypes, Prev: Redefining functions, Up: Initialization files
5.2 Conventions used for function prototypes
============================================
As the functions are defined by a reference name, we will always use
the reference name in function prototypes. For the function arguments
we will use `\@array' for a reference on an array and similarly
`\%hash' for a reference on a hash.
Thus, the prototype for the function associated with the function
reference `$formatting_function' will be:
-- Function Reference: $text formatting_function $arg1 \@arg2
`formatting_function' takes as first argument $ARG2, as second
argument a reference on an array \@ARG2 and returns the formatted
text $TEXT.
To redefined the corresponding function, you should write:
$formatting_function = \&my_formatting_function
sub my_formatting_function($ $)
{
my $arg1 = shift;
my $arg2 = shift;
# prepare $formatted_text
.....
return $formatted_text
}
File: texi2html.info, Node: Changing the page layout, Next: Customizing HTML, Prev: Initialization files, Up: Top
6 Fine tuning of the page layout
********************************
Some features of the page layout might be specified with command line
options, the corresponding variables are described in *Note Page layout
options::. Fine tuning of the page layout may be achieved with
redefinition of other variables and function references in the
initialization files.
* Menu:
* The different pages:: The different categories of pages.
* The page layout:: The elements of a page.
* Navigation panel:: How to change the navigation panel.
* Program variables:: The available main program variables and some
usefull functions from the main program.
* Output initialization:: Setting variables before the document
production but after the texinfo parsing.
* Output finalization:: Cleaning after document generation.
* css:: Customizing css lines.
* Customizing header::
* Customizing section::
* Customizing footer::
* Special pages:: Customizing table of contents, top, about page.
* File names:: Customizing the file names.
* External index files:: Putting index entries in external files.
File: texi2html.info, Node: The different pages, Next: The page layout, Up: Changing the page layout
6.1 The different categories of pages and sectioning elements
=============================================================
The following sectioning elements can be associated with pages:
_Normal elements_
These are normal sections or nodes. Their association with pages is
determined by the splitting of the document. *Note Splitting
output::.
_Top element_
The top element is the higher element in the document structure.
If there is a `@top' section it is the element associated with
that section. Otherwise it is the element associated with the
`@node Top'. If there is no `@node Top' the first element is the
top element.
The top element is formatted differently than a normal element if
there is a `@top' section or the `@node Top' isn't associated with
a sectioning command.
_Misc elements_
These elements are associated with pages if the document is split.
There are four misc elements:
1. Table of contents
2. Short table of contents, also called Overview
3. Footnotes page
4. About page
The _About page_ shouldn't be present for documents consisting in
only one sectioning element. The _Footnote page_ should only be
present if the footnotes appear on a separated page (*note Page
layout options::), however a footnote element is present if the
document isn't split. The _Table of contents_ should only be
formatted if `@contents' is present in the document. Similarly
the _Overview_ should only appear if `@shortcontents' or
`@summarycontents' is present.
File: texi2html.info, Node: The page layout, Next: Navigation panel, Prev: The different pages, Up: Changing the page layout
6.2 Page layout and navigation panel overview
=============================================
A page is broken up in three parts. A page header, the sections and a
page footer. A common element in the page layout is a navigation panel
with icons or text linking to other sections or pages. Another common
element is a rule, separating sections or footer. The navigation panel
and the rules may be part of the sections or part of headers or
footers. You may use the variables `$SMALL_RULE', `$DEFAULT_RULE', `$MIDDLE_RULE'
and `$BIG_RULE' for rules of different sizes. The defaults are
$SMALL_RULE = '
';
$DEFAULT_RULE = '
';
$MIDDLE_RULE = '
';
$BIG_RULE = '
';
In the header some important meta data may be defined, like the
title or style information, and textual informations may be present in
comments. All this doesn't appear directly in the displayed HTML,
though.
The page layout is mainly controlled by functions, the precise
functions called depending on the document splitting. The navigation
panel, however, can be customized with variables.
Element labels
--------------
There are 19 items associated with elements. Each of these is
associated with a name and a reference to the element they represent,
when such an element exists. The element is either a global element or
an element relative to the current element. The relative elements are
found with respect with the document structure defined by the section
structuring commands (`@chapter', `@unnumbered'...) or by the nodes (in
that case the node directions are specified on node line or in menu
organization). These items are called "element labels". They may be
associated with a button (*note Button specifications::), and used in
the formatting functions (*note Program variables::).
Here is the list:
_` '_
An empty button
_Top_
Top element. The associated name is `$TOP_HEADING' if that
variable is defined. This variable is not set by default.
_Contents_
Table of contents
_About_
About (help) page
_Overview_
Overview, short table of contents
_First_
First element in reading order
_Last_
Last element in reading order
_Index_
The first chapter with `@printindex'. The associated name is `$INDEX_CHAPTER',
if the variable is set. This variable is not set by default.
_This_
The current element
_Back_
Preceding element in reading order
_FastBack_
Beginning of this chapter or previous chapter if the element is a
chapter
_Prev_
Previous section on the same level
_NodePrev_
Previous node
_Forward_
Next element in reading order
_FastForward_
Next chapter
_Next_
Next section on the same level
_NodeNext_
Next node
_Following_
Next node in node reading order
_Up_
Up section
_NodeUp_
Up node
File: texi2html.info, Node: Navigation panel, Next: Program variables, Prev: The page layout, Up: Changing the page layout
6.3 Customization of the navigation panels buttons
==================================================
A lot of customization of the navigation panel may be achieved without
redefining functions, with variables redefinition. In case it isn't
enough, it is also possible to redefine the function doing the
navigation panel formatting.
* Menu:
* General purpose variables:: Variables controlling the navigation panel
at a global level
* Button specifications::
* Panel formatting function::
File: texi2html.info, Node: General purpose variables, Next: Button specifications, Up: Navigation panel
6.3.1 Controlling the navigation panel panel at a high level
------------------------------------------------------------
The global formatting of the navigation panels may be changed with the
following variables:
`$VERTICAL_HEAD_NAVIGATION'
A vertical navigation panel will be used for the header navigation
panel if this variable is true.
`$ICONS'
Icons are used instead of textual buttons if this variable is true.
`$SECTION_NAVIGATION'
If this variable is false there is no section navigation, no
navigation panels for the elements within the pages, only at the
beginning and the end of the page (*note Page layout options::).
File: texi2html.info, Node: Button specifications, Next: Panel formatting function, Prev: General purpose variables, Up: Navigation panel
6.3.2 Specifying the buttons formatting
---------------------------------------
Several arrays and hashes enable a precise control on the buttons and
their display. The following arrays determine the buttons present in
navigation panels:
`@SECTION_BUTTONS'
This array is used for the navigation panel buttons present at the
begining of sectioning elements. If split at node or section they
are also used at the page footer, and in the case of section
navigation at the page header.
`@SECTION_FOOTER_BUTTONS'
`@NODE_FOOTER_BUTTONS'
This array is used for the navigation panel buttons present at the
footer of pages when split at node or at section.
If `$WORDS_IN_PAGE' is set and the output is split at nodes, these
buttons are only present if there are more than `$WORDS_IN_PAGE'
words in the sectioning element text. This counting is very rough
and include punctuation marks, html elements, numbers. The
default is to include the buttons after 300 words.
`@CHAPTER_BUTTONS'
This array is used for the buttons appearing at the page footer if
split at chapter, and at the page header if split at chapter and
there is no section navigation.
`@MISC_BUTTONS'
These buttons appear at the beginning of special and sections and
at the end of these section pages if the output is split.
The array specify the buttons displayed in navigation panels, and
how the button is displayed. Each element is associated with a button
of the navigation panel from left to right. The signification of the
array element value is the following:
_reference on a function_
The function is called with first argument a filehandle reference
on the current file and second argument a boolean true if the
navigation panel should be vertical.
_reference on a scalar_
The scalar value is printed. For some possibly usefull scalars,
*Note Elements hashes::.
_reference on an array_
In this case the first array element should be a reference on text
and the second element an element label. In that case a link to the
element associated with the element label with the scalar value
text is generated.
For example if the buttons array element is
[ 'Next', \$Texi2HTML::NODE{Next} ]
The button will be a link to the next section with text `$Texi2HTML::NODE{Next}'.
_element label_
If icons are not used, the button is a link to the corresponding
element which text is defined by the value associated with the
element label in the `%NAVIGATION_TEXT' hash, surrounded by `['
and `]'. If the element label is ` ', there is no `[' and `]'.
The element of the `%NAVIGATION_TEXT' hash are defined
dynamically, in the `init_out' function reference (*note Output
initialization::).
If icons are used, the button is an image with file determined by
the value associated with the element label in the `%ACTIVE_ICONS'
hash if the the link really leads to an element, or in the `%PASSIVE_ICONS'
hash if there is no element to link to. Of course if there is a
link to the element the icon links to that element.
File: texi2html.info, Node: Panel formatting function, Prev: Button specifications, Up: Navigation panel
6.3.3 Changing the navigation panel formatting
----------------------------------------------
If you are not satisfied with this scheme, it is possible to control
exactly the formatting of navigation panels by redefining a function
reference. The function controlling the display of navigation panel is
associated with the following function reference:
-- Function Reference: print_navigation $filehandle \@buttons $vertical
$FILEHANDLE is the opened filehandle the function should write to.
\@BUTTONS is an array reference which should hold the
specification of the buttons for that navigation panel. $VERTICAL
is true if the navigation panel should be vertical.
File: texi2html.info, Node: Program variables, Next: Output initialization, Prev: Navigation panel, Up: Changing the page layout
6.4 Main program variables and usefull functions
================================================
In the functions controlling the page layout some global variables set
by the main program are available, with value corresponding with the
current layout element.
* Menu:
* Elements hashes:: Accessing information related with the
different elements
* Global informations:: Accessing global informations, like date,
title...
* Global functions:: main program usefull functions
File: texi2html.info, Node: Elements hashes, Next: Global informations, Up: Program variables
6.4.1 Accessing elements informations
-------------------------------------
Four hashes are available, with key the elements labels (as described
in *Note Element labels::) and values:
`%Texi2HTML::NAME'
The formatted element name
`%Texi2HTML::HREF'
The element hypertext reference
`%Texi2HTML::NODE'
The element node name
`%Texi2HTML::NO_TEXI'
The element name after removal of texi commands
File: texi2html.info, Node: Global informations, Next: Global functions, Prev: Elements hashes, Up: Program variables
6.4.2 Accessing global informations
-----------------------------------
Three kinds of global informations are available, miscalleneous global
strings, flags set by `@set' and special flags and section lines.
Global strings
..............
The `%Texi2HTML::THISDOC' hash holds some global informations:
`fulltitle'
title set by `@title'. If there is no `@title' other possibilities
are tried (`@settitle', `@shorttitlepage'...).
`title'
title set by `@settitle', or `fulltitle'.
`title_no_texi'
title without texi formatting
`title_texi'
title with texi commands
`author'
Authors list set by `@author'.
`authors'
A reference on an array containing each author set by `@author'.
`copying'
Text appearing in `@copying' with all the texinfo commands removed,
put in comments.
`program'
The name and version of `texi2html'.
`program_homepage'
Homepage for `texi2html'.
`program_authors'
Authors of `texi2html'.
`file_base_name'
base name of the texinfo manual file.
`destination_directory'
Destination directory for the resulting files.
`toc_file'
The file name of the table of contents.
`today'
The date.
It also holds the arg of the following commands, associated with the
command name: kbdinputstyle, paragraphindent, setchapternewpage,
headings, footnotestyle, exampleindent, firstparagraphindent,
everyheading, everyfooting, evenheading, evenfooting, oddheading,
oddfooting.
Flags
.....
Flags defined by `@set' may be accessed through the `%main::value'
hash. The key is the flag name, the value is the flag value at the end
of the document.
Special flags are set by the main program. They correspond with a
texinfo command, like `@setfilename', or `@settitle', `@author'... The
corresponding flag is the command name with `_' appended, for example,
`_titlefont' corresponds with `@titlefont'. Like other flags they are
available in `%main::value'.
Section lines
.............
The following array references or arrays holds formatted lines:
`$Texi2HTML::THIS_SECTION'
Lines of the current element.
`$Texi2HTML::THIS_HEADER'
Lines of the current element appearing before the element label
(anchors).
`$Texi2HTML::OVERVIEW'
Lines of short table of contents. *Note Special pages::.
`$Texi2HTML::TOC_LINES'
Lines of table of contents. *Note Special pages::.
File: texi2html.info, Node: Global functions, Prev: Global informations, Up: Program variables
6.4.3 Function usefull in page formatting
-----------------------------------------
The usefull function is a function used to print an array of lines,
which also counts the number of words in the array, if needed.
-- Function: $words_number main::print_lines $filehandle \@lines_array
$FILEHANDLE is the opened filehandle the function should write to.
\@LINES_ARRAY is the array line the function should write to the
file. If this argument is omitted, the function uses `$Texi2HTML::THIS_SECTION'.
$WORDS_NUMBER is the number of words in the array, only defined if
split at nodes and `$WORDS_IN_PAGE' is defined.
File: texi2html.info, Node: Output initialization, Next: Output finalization, Prev: Program variables, Up: Changing the page layout
6.5 Preparing the output
========================
After the texinfo file has been parsed, some information is available
which can be used to modify some variables and prepare the outputting.
For example the document language, the document encoding, values set
with `@set' or `@setfilename' and other similar @-commands are not
known before the texinfo parsing.
The following function reference may be redefined to be called after
texinfo processing and before document generation:
-- Function Reference: $encoding init_out
This function perform the initialization of variables and any other
task before document outputting. It returns the encoding used for
the output files.
In the default case the `$BODYTEXT' (*note Customizing header::) and
the hashes `%NAVIGATION_TEXT' (*note Button specifications::) and `%BUTTONS_GOTO'
(*note About text::) are initialized.
To perform the default initializations and also add more code, you
could do as in the following example (save the default function
reference and call it in your own function) :
my $default_init_out = $init_out;
$init_out = \&makeinfo_like_init_out;
sub makeinfo_like_init_out()
{
my $encoding = &$default_init_out();
$NAVIGATION_TEXT{'Following'} = ' > ';
return $encoding;
}
File: texi2html.info, Node: Output finalization, Next: css, Prev: Output initialization, Up: Changing the page layout
6.6 Finalizing the output
=========================
If you want to do some cleaning after the document was generated (close
files, write at the end of files and so on), the following function
reference may be redefined:
-- Function Reference: finish_out
This function is called after the document generation.
The default is to do nothing.
File: texi2html.info, Node: css, Next: Customizing header, Prev: Output finalization, Up: Changing the page layout
6.7 Customizing the `texi2html' css lines
=========================================
It is possible to modify the `texi2html' css lines by modifying the
entries or adding to the `%css_map' hash. Each key is a css selector,
the corresponding value is a style string.
The whole css text is in the variable `$CSS_LINES'. If this variable
is defined the variable value is used instead of being constructed
using the `%css_map' entries. For example if you don't want any css
entries, set
$CSS_LINES = '';
It is also possible to change completely the way `$CSS_LINES' are
generated by redefining the following function reference:
-- Function Reference: css_lines \@import_lines \@rule_lines
This function should be used to construct the `$CSS_LINES'.
\@IMPORT_LINES are the `@import' lines of the files specified with `--include-css',
and \@RULE_LINES are the css commands lines of these files. *Note
Style options::.
File: texi2html.info, Node: Customizing header, Next: Customizing section, Prev: css, Up: Changing the page layout
6.8 Customizing the page header
===============================
It is possible to add lines to the text within the `' HTML
elements, by defining the variable `$EXTRA_HEAD'. Similarly it is
possible to add text just after the `' element with the variable `$AFTER_BODY_OPEN'.
These variables are empty by default.
The encoding of the texinfo file is defined by `$DOCUMENT_ENCODING'
if no `@documentencoding' appears in the document. The default is a
`en-ascii' encoding. The encoding of the resulting document is defined
by `$ENCODING'. The default is the `$DOCUMENT_ENCODING'.
The description of the document may be specified in `$DOCUMENT_DESCRIPTION'.
If this variable is undef, the text associated with
`@documentdescription' is used, and if there isn't such test a default
description is constructed using the document title and the name of the
first section of the file.
The `' element attributes may be set by defining the variable `$BODYTEXT'.
If you want to define that variable dynamically, you should use the
`init_out' function reference (*note Output initialization::).
The default functions call the function associated with `$print_head_navigation'
to format the navigation panel for the page header. Thus you can
control parts of the formatting by redefining the function reference.
-- Function Reference: print_head_navigation $filehandle \@buttons
$FILEHANDLE is the opened filehandle the function should write to.
\@BUTTONS is an array reference which should hold the
specification of the buttons for the navigation panel.
If you want even more control, you can have full control over the
page header formatting by redefining three function references. The
function associated with `$print_page_head' is called for all the
pages, and after that, the function associated with `$print_chapter_header'
is called if the document is split at chapters, or the function
associated with `$print_section_header' is called if the document is
split at sections.
-- Function Reference: print_page_head $filehandle
$FILEHANDLE is the opened filehandle the function should write to.
This function should print the page head, including the `'
element.
-- Function Reference: print_chapter_header $filehandle
$FILEHANDLE is the opened filehandle the function should write to.
This function is called if the document is split at chapters, after
`print_page_head'.
-- Function Reference: print_section_header $filehandle
$FILEHANDLE is the opened filehandle the function should write to.
This function is called if the document is split at sections, after
`print_page_head'.
File: texi2html.info, Node: Customizing section, Next: Customizing footer, Prev: Customizing header, Up: Changing the page layout
6.9 Customizing the sections
============================
The functions associated with the following function references are
used for the formatting of sections:
-- Function Reference: print_section $filehandle $first_in_page
$previous_is_top
$FILEHANDLE is the opened filehandle the function should write to.
$FIRST_IN_PAGE is true if this section is the first section in the
page. $PREVIOUS_IS_TOP is true if this section is the section
following the Top section. This function should print the current
section.
-- Function Reference: end_section $filehandle
$last_element_or_before_top
$FILEHANDLE is the opened filehandle the function should write to.
$LAST_ELEMENT_OR_BEFORE_TOP is true if this section precedes the
top element or is the last one in page, or before the special
elements.
File: texi2html.info, Node: Customizing footer, Next: Special pages, Prev: Customizing section, Up: Changing the page layout
6.10 Customizing the page footer
================================
It is possible to add text just before the `' element with the
variable `$PRE_BODY_CLOSE'. Nothing is added by default.
The default functions call the function associated with `$print_foot_navigation'
to format the navigation panel for the page footer. Thus you can
control parts of the formatting by redefining the function reference.
-- Function Reference: print_foot_navigation $filehandle \@buttons
$FILEHANDLE is the opened filehandle the function should write to.
\@BUTTONS is an array reference which should hold the
specification of the buttons for the navigation panel.
If you want even more control, you can have full control the page
footer formatting by redefining three function references. The
function associated with `$print_chapter_footer' is called if the
document is split at chapters, or the function associated with `$print_section_footer'
is called if the document is split at sections. After that the
function associated with `$print_page_foot' is called.
-- Function Reference: print_page_foot $filehandle
$FILEHANDLE is the opened filehandle the function should write to.
This function should print the page foot, including the `'
element.
-- Function Reference: print_chapter_footer $filehandle
$FILEHANDLE is the opened filehandle the function should write to.
This function is called if the document is split at chapters,
before `print_page_foot'.
-- Function Reference: print_section_footer $filehandle
$FILEHANDLE is the opened filehandle the function should write to.
This function is called if the document is split at sections,
before `print_page_foot'.
File: texi2html.info, Node: Special pages, Next: File names, Prev: Customizing footer, Up: Changing the page layout
6.11 Special pages formatting
=============================
For the special elements, two things must be formatted: the content and
the page layout
* Menu:
* Special pages content::
* Special pages layout::
File: texi2html.info, Node: Special pages content, Next: Special pages layout, Up: Special pages
6.11.1 Customizing the content of the special pages
---------------------------------------------------
* Menu:
* Top element text::
* Contents and Overview text::
* Footnotes text::
* About text::
File: texi2html.info, Node: Top element text, Next: Contents and Overview text, Up: Special pages content
6.11.1.1 Top element text formatting
....................................
The top element formatting is controlled by three function which also
controls the layout of the top element page or section. The associated
function references are:
-- Function Reference: print_Top_header $filehandle $begin_page
$FILEHANDLE is the opened filehandle the function should write to.
$BEGIN_PAGE is true if the element is the first in a page. This
function should begin the Top element. At the time this function
is called the top element text hasn't been parsed.
-- Function Reference: print_Top $filehandle $has_top_heading
$FILEHANDLE is the opened filehandle the function should write to.
$HAS_TOP_HEADING is true if there is a `@heading' command or
`@titlefont' command appearing in the Top element text. This
function should be used to format the Top element text and
navigation panel.
-- Function Reference: print_Top_footer $filehandle $end_page
$FILEHANDLE is the opened filehandle the function should write to.
$END_PAGE is true if the element is the last in a page. This
function should end the Top element.
File: texi2html.info, Node: Contents and Overview text, Next: Footnotes text, Prev: Top element text, Up: Special pages content
6.11.1.2 Table of contents and Short table of contents
......................................................
Several variables may be used to control the formatting of table of
contents and short table of contents:
`$DO_CONTENTS'
If the variable is true a table of contents is done even if there
is no `@contents' command.
`$DO_SCONTENTS'
If the variable is true a short table of contents is done even if
there is no `@summarycontents' command.
`$BEFORE_OVERVIEW'
The variable value is inserted before the short table of contents
text.
`$AFTER_OVERVIEW'
The variable value is inserted after the short table of contents
text.
`$BEFORE_TOC_LINES'
The variable value is inserted before the table of contents text.
`$AFTER_TOC_LINES'
The variable value is inserted after the table of contents text.
`$TOC_LIST_STYLE'
This should contain a css style used for the list style if the
tables of content are formatted with a list.
`$TOC_LIST_ATTRIBUTE'
This should contain an attribute text used for the list element if
the tables of content are formatted with a list.
More control on the table of contents and short table of contents
formatting may be achieved by redefining a function with the following
associated function reference:
-- Function Reference: toc_body \@elements
\@ELEMENTS is an array reference contining informations about all
the elements of the document. Each of the entry of this array is
an hash reference which entries correspond with different
informations about the element. Interesting keys have the
following meaning:
`top'
true if the element is the top element,
`index_page'
true if the element is an index page added because of index
splitting,
`toc_level'
level of the element in the table of content. Highest level
is 1 for the top element and for chapters, appendix and so on,
2 for section, unnumberedsec and so on...
`tocid'
label used for reference linking to the element in table of
contents,
`file'
the file containing the element, usefull to do href to that
file in case the document is split,
`text'
text of the element, with section number,
`name'
text of the element, without section number.
This function doesn't return anything but should fill the array
corresponding with the `$Texi2HTML::TOC_LINES' and `$Texi2HTML::OVERVIEW'
references with the table of contents and short table of contents.
File: texi2html.info, Node: Footnotes text, Next: About text, Prev: Contents and Overview text, Up: Special pages content
6.11.1.3 Formatting of footnotes text
.....................................
The footnotes text is allready formatting when `@footnote' commands are
expanded. *Note Footnotes::.
File: texi2html.info, Node: About text, Prev: Footnotes text, Up: Special pages content
6.11.1.4 Formatting of about text
.................................
The default about element contains an explaination of the buttons used
in the document (`@SECTION_BUTTONS', *Note Button specifications::) and
an example locating the buttons targets in an example. The formatting
of this text may be influenced by the following hashes and variables:
`$PRE_ABOUT'
`$AFTER_ABOUT'
This variable may be a scalar or a function reference. If it is a
scalar, the value is used. If this is a function reference it is
expanded and the returned text is used. The text is added before
or after the main about text.
`%BUTTONS_GOTO'
The keys of this hash are element labels (*note Element labels::).
The value is the text associated with the element label in the
about text. The element of the hash are defined dynamically, you
should in the `init_out' function reference (*note Output
initialization::).
`%BUTTONS_EXAMPLE'
The keys of this hash are element labels (*note Element
labels::). The value is the text associated with the element label
in the about example, typically a section number.
If this is not enough and you want to control exactly the formatting
of the about text, you can redefine the function associated with the
following function reference:
-- Function Reference: $about_text print_about
This function should return the about text.
File: texi2html.info, Node: Special pages layout, Prev: Special pages content, Up: Special pages
6.11.2 Customizing the layout of the special pages
--------------------------------------------------
The formatting of each of the special pages, or section in case the
document is not split, is controlled by a function. The associated
function reference is called accordingly:
`print_Top'
`print_Top_header'
`print_Top_footer'
Formatting of top element page or section. It is also used for the
formatting of the top element text (*note Top element text::).
`print_Toc'
Formatting of table of contents page or section
`print_Overview'
Formatting of short table of contents page or section
`print_About'
Formatting of about (help) page or section
`print_Footnotes'
Formatting of footnotes section or page in case footnotes are on a
separated page or the document isn't split.
In the default case, `$print_Top' calls `$print_Top_header' for the
header and `$print_Top_footer' for the footer of top element. All the
other function call `$print_misc' which in turn calls `$print_misc_header'
for the headers and `$print_misc_footer' for the footers.
File: texi2html.info, Node: File names, Next: External index files, Prev: Special pages, Up: Changing the page layout
6.12 Customizing the file names
===============================
It is possible to specify the file names with more control than with the
command line options (*note Output files::). First the extension may
be overrided by the variable `$EXTENSION' value. Two function
references enable further customization. One is usefull in case `$NODE_FILES'
is true and it is used to customize the node file name itself and is
also used to produce a file name with a redirection leading to the node
file.
-- Function Reference: ($node_file $redirection_node_file)
node_file_name $node
$NODE is a hash reference with the following interesting keys
(there are much more keys):
`texi'
The texinfo node name.
`with_section'
True if associated with a section.
The result is the node file name $NODE_FILE, and the file
containing a redirection to the node $REDIRECTION_NODE_FILE.
The other is usefull if `$NODE_FILES' isn't true. It is used to
customize the file associated with each element.
-- Function Reference: $file element_file_name $element $is_top
$docu_name
$ELEMENT is a hash reference with the following interesting keys
(there are much more keys):
`texi'
The texinfo element name.
`number'
The number associated with a section.
`doc_nr'
A number incremented whenever a new file should begin, based
on how the document is split (*note Splitting output::).
`text'
The element text.
`name'
The element text without section number.
$IS_TOP is true if the element is considered as the top element.
$DOCU_NAME is the basename of the texinfo manual. The result is
the element file name.
File: texi2html.info, Node: External index files, Prev: File names, Up: Changing the page layout
6.13 Generation of external files for index entries
===================================================
Within the document, `@printindex' commands are expanded as explained
in *Note Index list::. In case you want to do something special with
index entries, outside of the document, you should first set the
variable `$IDX_SUMMARY' true. After that some function reference will
be called for each non empty index. For each index there are 3 function
references, one called for initialization, one called for each index
entry and the last one called for finalazation.
-- Function Reference: index_summary_file_begin $index_name $is_printed
$INDEX_NAME is the two letters name for the index. This function
is called for each index appearing in the document, before
`index_summary_file_entry'. $IS_PRINTED is true if there is a
`@printindex' for that index.
-- Function Reference: index_summary_file_entry $index_name
$entry_text $entry_reference $formatted_entry $texi_entry
$entry_element_reference $entry_element_header $is_printed
This function is called for each entry of an index. INDEX_NAME is
the name of the index. $ENTRY_TEXT is the entry in plain text,
$FORMATTED_ENTRY is the index entry formatted, $TEXI_ENTRY is the
entry with texinfo commands. $ENTRY_REFERENCE is the reference
placed at the index entry place, in the form `file#id'.
$ENTRY_ELEMENT_HEADER is the formatted header of the element
containing the index entry. ENTRY_ELEMENT_HEADER is the reference
to the beginning of the element containing the index entry, in the
form `file#id'. $IS_PRINTED is true if there is a `@printindex'
for that index.
-- Function Reference: index_summary_file_end $index_name $is_printed
$INDEX_NAME is the two letters name for the index. This function
is called for each index appearing in the document, after
`index_summary_file_entry'. $IS_PRINTED is true if there is a
`@printindex' for that index.
File: texi2html.info, Node: Customizing HTML, Next: Internationalization, Prev: Changing the page layout, Up: Top
7 Customizing HTML and text style in init files
***********************************************
Some simple customization may be achieved with the redefinition of the
variables associated with the command line options. For the description
and an explanation of the meaning of these variables, *Note Style
options::.
Other variables and hash entries can be modified in initialization
file to achieve more customization. Lastly, functions references
corresponding with functions called from the main program and
initialization files may be redefined.
* Menu:
* Three contexts:: there are three different contexts for command
expansion: normal text, preformatted text and
strings.
* Commands without argument::
* Style and accent commands::
* Anchors images and spaces:: Formatting of `@anchor', `@image', `@sp', `@acronym', `@abbr'
* Text:: Some characters are processed specially
* Strings:: `texi2html' write some strings in the output
different for each languages
* References::
* Alignement commands:: `@center', `@flushleft'...
* Paragraph and preformatted region::
* Complex formats:: `@example', `@display'...
* Lists tables::
* Definitions::
* Headings::
* Special regions:: `@verbatim', `@cartouche', `@quotation'
* Menus::
* Indices::
* Floats and lists of floats:: `@float' and `@listoffloats'
* Footnotes::
* Other and unknown commands:: You can handle specifically other commands
File: texi2html.info, Node: Three contexts, Next: Commands without argument, Up: Customizing HTML
7.1 Three contexts for expansions: preformatted, normal and string
==================================================================
There are three contexts of interest, one is the normal context, the
other is a special context, called the "preformatted" context and the
last is the string context. The preformatted context occurs when the
spacing between words is kept. This is the case, for example, in
`@display' or `@example' regions, and in menu comments (*note Menus::).
The preformatted regions are usually rendered in `' elements in
HTML. The string context occurs when rendering strings without
formatting elements, in comments or titles for example.
File: texi2html.info, Node: Commands without argument, Next: Style and accent commands, Prev: Three contexts, Up: Customizing HTML
7.2 Customizing the formatting of commands without argument
===========================================================
This includes the commands whose name is a nonletter character like
`@@', the commands with lettered characters and braces but whose braces
should be empty, like `@TeX{}', or some commands associated with
accentted letters like `@AA{}'. If there happens to be something within
the braces, it is put after the command, thus
@TeX{something}
leads to the same than
@TeX{} something
Each of these categories of commands have three associated hashes,
one for normal context, the other for preformatted context and the last
in strings. The keys of the hashes are the command names, the
associated value is the text replacing the command.
The hashes are:
command type normal text preformatted text string
one nonlettered character `%simple_map' `%simple_map_pre' `%simple_map_texi'
nothing in braces `%things_map' `%pre_map' `%texi_map'
To change the HTML resulting from these constructs, just change the
value. For example, if you want `' to be outputted for `@-' in
normal and preformatted context, write in your init file:
$simple_map{'-'} = '';
$simple_map_pre{'-'} = '';
File: texi2html.info, Node: Style and accent commands, Next: Anchors images and spaces, Prev: Commands without argument, Up: Customizing HTML
7.3 Customizing accent, style and other simple commands
=======================================================
The formatting of the HTML produced by style and indicatric commands
(`@tt', `@code', `@email', `@titlefont'), the accentuation related
commands taking argument (`@'', `@udotaccent', `@dotless') and
miscalleneous commands (`@email', `@verb', `@w', `@uref', `@math',
`@asis') is controlled by two hash in the default case, `%style_map'
for normal context, `%style_map_pre' for preformatted context and `%style_map_texi'
in string context.
The key of the hashes are the command names. There are two
possibilities for the values corresponding with two interfaces. The
values may be strings or hash references, and you can chose the
interface depending on the one you prefer. The interface with hash
reference is a bit more flexible but might also be regarded as more
complex. If you don't like either of these interfaces you can define
your own.
Some remarks are in order:
* The nonlettered accent commands which following character is
considered to be the argument (like in `@`a') should be keys of the
hash `%accent_map' hash, even if no value is associated.
* `@math' is handled differently if LaTeX2HTML is used.
* Menu:
* Hash reference interface::
* String interface::
* Define your own interface::
File: texi2html.info, Node: Hash reference interface, Next: String interface, Up: Style and accent commands
7.3.1 An interface for commands formatting with a hash reference
----------------------------------------------------------------
The key of the hashes are the command names. The value determine how
the command argument is formatted. This value is a reference on a hash.
In this hash each key corresponds with a type of information for the
formatting, and the value is the corresponding information. For
example, in
$style_map{'command'} = { 'args' => ['code'], 'attribute' => 'code'};
the arguments for `@command' are interpreted as specified by the
values associated with the `args' key while the attribute associated
with that command is `code'.
The following keys in the hashes associated with each command have
the following meaning:
`args'
The value associated is a reference on an array. Each element of
the array defines how the arguments (separated by `,' in the
texinfo code) for the @-command should be formatted. The
possibilities are
`normal'
for normal text,
`code'
for text with `---', `--', `''' and ```' kept as is,
`keep'
if the texinfo should be kept as is, without interpretation
of the @-commands.
For example, we have
$style_map{'email'}->{'args'} = ['code', 'normal'];
because `---', `--', `''' and ```' should be kept as is in the
first argument of `@email'.
The default is `['normal']'.
`attribute'
If the associated value is a word, it is considered to be an HTML
element name, and the argument is enclosed between the element
opening and the element closing. For example, if the value is
`elem', the resulting HTML is `ARG'.
If the text is a word followed by some text, the word and is
interpreted as above, and the text is considered to be the
attributes text of the element. Thus `elem class="elem"' leads to
`ARG'.
This works only if there is only one argument.
`begin'
The associated value is added in front of the text.
`begin'
The associated value is added after the text.
`quotes'
If the corresponding value is true, the result is enclosed in
quotes `$OPEN_QUOTE_SYMBOL' and `$CLOSE_QUOTE_SYMBOL', with
defaults ``' and `''.
`function'
The corresponding value should be a function reference. The
corresponding function is called with the following arguments:
`$command'
The @-command name
`$args'
A reference on an array containing the arguments of the
@-command.
`$style_stack'
A reference on an array containing the name of the @-commands
containing the @-command being formatted.
`$state'
A reference on a hash containing a lot of informations about
the context of the @-command.
`$line_nr'
An opaque structure containing the information about the line
number of the @-command. It can be used to call
`main::echo_error' or `main::echo_warning' with first
argument a message, and second argument `$line_nr'.
File: texi2html.info, Node: String interface, Next: Define your own interface, Prev: Hash reference interface, Up: Style and accent commands
7.3.2 An interface for commands formatting with a string
--------------------------------------------------------
The keys of the hashes are the command names. The value determine how
the command argument is formatted. If the value begins with `"', the
result is enclosed in quotes `$OPEN_QUOTE_SYMBOL' and `$CLOSE_QUOTE_SYMBOL',
with defaults ``' and `''.
The command argument is allready formatted as HTML. The remaining
of the value text (or the value text if there were no `"') is
interpreted as follow:
* If the text is empty the argument of the command is left as is.
* If the text is a `&' followed by a name, like `&function', the
name is considered to be a function name, and this function is
called to format the argument of the command. The first argument
of the function is the command name, the second is the command
argument. For example, if the value associated with the
(fictituous) command `@foo' is `&my_func' and we have:
sub my_func
{
my @args = split /,\s*/ $_[1];
return "$_[0]: $args[0]" if ($args[1] = 1);
return "$args[0]";
}
The result of
@foo{truc, 1}
@foo{truc, bidule}
will be
foo: truc
truc
* If the text is a word, it is considered to be an HTML element
name, and the argument is enclosed between the element opening and
the element closing. For example, if the value is `elem', the
resulting HTML is `ARG'. Similarly `"quoted' leads to
``ARG''.
* If the text is a word followed by some text, the word and is
interpreted as above, and the text is considered to be the
attributes text of the element. Thus `elem class="elem"' leads to
`ARG'.
File: texi2html.info, Node: Define your own interface, Prev: String interface, Up: Style and accent commands
7.3.3 Defining the style and indicatric commands interface
----------------------------------------------------------
If you don't like this scheme, it is possible to change how those
commands are processed by redefining the following function reference:
-- Function Reference: $resulting_text style $style $command $text
$args $no_close $no_open $line_nr $state $style_stack
$COMMAND is the @-command, $STYLE is the value associated with the
$COMMAND in the `%style_map', `%style_map_pre' or
`%style_map_texi' hashes. The $TEXT is the text appearing within
the @-command braces. ARGS is a reference on an array contening
the command arguments formatted according to the same conventions
than with the reference hash style (provided the value associated
with the @-command is a hash reference with a $ARG key as
described in *Note Reference hash args::). If $TEXT is split in
paragraphs each paragraph is passed through the function, and
$NO_CLOSE is true if it is not the last paragraph, while $NO_OPEN
is true if it is not the first paragraph. $LINE_NR is an opaque
structure containing the information about the line number of the
@-command. It can be used to call `main::echo_error' or
`main::echo_warning' with first argument a message, and second
argument `$line_nr'. $STATE is a reference on a hash containing a
lot of informations about the context of the @-command.
$STYLE_STACK is a reference on an array containing the name of the
@-commands containing the @-command being formatted.
File: texi2html.info, Node: Anchors images and spaces, Next: Text, Prev: Style and accent commands, Up: Customizing HTML
7.4 Formatting of special simple commands
=========================================
The formatting of special simple commands is controlled by functions. To
customize the output, the corresponding function references should be
redefined. All these functions return a formatted text.
The formatting of anchors is controlled by `$anchor', but the
function associated with the function reference does more, it is usefull
to produce a reference target or link.
-- Function Reference: $anchor anchor $identifier $href $text
$attributes
If $IDENTIFIER is not empty, this value should be used to create a
target for links (typically associated with a name or id attribute
in HTML). The $HREF argument specifies a hpertextual reference
which should be used to link to a target. In case both
$IDENTIFIER and $HREF are given the text produced should be both
a target for $IDENTIFIER and a link to $HREF. $TEXT is the text
to be displayed. $ATTRIBUTES are additional attributes. It
should be reasonable to assume that the attributes are for a `'
HTML element.
The formatting of `@image' is controlled by:
-- Function Reference: $image image $file_path $basename $preformatted
$file_name
$FILE_PATH is the image file name with the path, $BASENAME is the
alternate text or the file name without extension if no alternate
text is given. $PREFORMATTED is true if the image appears in
preformatted text. $FILE_NAME is the file name without path but
with extension.
The formatting of `@sp' is controlled by:
-- Function Reference: $sp sp $number $preformatted
$NUMBER is the numeric argument of `@sp'. $PREFORMATTED is true
if the `@sp' appears in preformatted text.
The formatting of `@acronym' and `@abbr' is controlled by:
-- Function Reference: $acronym acronym_like $acronym_texi
$acronym_text $with_explanation \@explanation_lines
$explanation_text $explanation_simply_formatted
$ACRONYM_TEXI is the acronym argument with texinfo @-commands,
$ACRONYM_TEXT is formatted.
The other arguments are related with the explanation, the second
arg of the acronym. $WITH_EXPLANATION is true if the second
argument of the acronym command is present. If an explanation
exists, coming from previous `@acronym' or as an arg of this
command, the other args are defined: \@EXPLANATION_LINES is a
reference on an array containing the unformatted explanation lines,
$EXPLANATION_TEXT is the explanation text formatted,
$EXPLANATION_SIMPLY_FORMATTED is the explanation with a light
formatting, unabling in HTML (or XML) the explanation to be in an
attribute.
File: texi2html.info, Node: Text, Next: Strings, Prev: Anchors images and spaces, Up: Customizing HTML
7.5 Processing special characters in text
=========================================
Some characters are processed especially in text: `---', `--', ```' and
`'''. This is done only if in normal text and not in some commands
(`@code', `@env'...). A function reference is called to process those
characters in text
-- Function Reference: $processed_text normal_text $text
The function processes `---', `--', ```' and `''' in $TEXT and
returns $PROCESSED_TEXT. The default is to change `---' to `--',
`--' to `-', and ```' and `''' to `"'.
Some characters are special in HTML (`&', `"', `<' and `>') and
should be protected. This is done by the function associated with the
function reference
-- Function Reference: $protected_text protect_text $text
The function processes the unprotected text $TEXT and returns the
resulting protected text $PROTECTED_TEXT.
Empty lines are processed by the following function reference, which
could be usefull if empty lines are to be removed for example
-- Function Reference: $resulting_text empty_line $empty_line
This function processes an $EMPTY_LINE and returns the resulting
text $RESULTING_TEXT. Empty lines are left as is by default.
File: texi2html.info, Node: Strings, Next: References, Prev: Text, Up: Customizing HTML
7.6 Customizing strings written by `texi2html'
==============================================
`texi2html' writes some strings in the generated document at various
places, at the page footers, on the help page, for special section
headings, buttons alt text and so on. These strings are customizable.
The string chosen depends on the language of the document (set by `--lang', `$LANG'
or `@documentlanguage'). This is the basis for internationalization as
it allows for strings translations.
The strings are found in a hash reference, `$LANGUAGES'. Each key
is a language code. The associated value is also a hash reference. The
key is an english string and the associated value is the string
replacing the english string, if present. For example, we have
$LANGUAGES->{'fr'} = {
' Up ' => 'Plus haut',
};
It means that whenever the string ` Up ' is to be written and the
language is `fr', `Plus haut' is written. It is possible to customize
the english strings by redefining the `en' language hash.
When a string contains a `%' followed by `{' NAME `}' it means that
the string will be expanded by `texi2html'. For example, if we have
$LANGUAGES->{'fr'} = {
'See %{node_file_href}' => 'Voir %{node_file_href}',
};
`%{node_file_href}' will be expanded to an href for a node in a file
by `texi2html' in the string. A `%%' will be expanded as `%'.
For more on internationalization, see *Note Internationalization::.
File: texi2html.info, Node: References, Next: Alignement commands, Prev: Strings, Up: Customizing HTML
7.7 References
==============
* Menu:
* Reference to external manual::
* Internal reference::
File: texi2html.info, Node: Reference to external manual, Next: Internal reference, Up: References
7.7.1 Reference to external manual
----------------------------------
The references are produced with two function references, one for the
hypertextual reference construction, the other for the full reference to
external manual.
-- Function Reference: $href external_href $node $node_identifier
$xml_node_identifier $manual_file_name
$NODE is the node name, with @-commands. $NODE_IDENTIFER is the
node name mapped to an identifier acceptable as a file name.
$XML_NODE_IDENTIFIER is the node name mapped to an identifier
acceptable as an XML identifier. Those identifiers are built as
explained in *Note HTML Xref: (texinfo)HTML Xref, thus allowing
for cross references to external manuals. $FILE is the manual or
file name of the external reference. This function should return an
href leading to the external manual.
The default for this function is to make a reference compatible
with `makeinfo' (*note HTML Xref: (texinfo)HTML Xref.).
-- Function Reference: $text external_ref $command $section $book
$node_and_file $href $cross_ref_name
This function formats a reference to an external texinfo manual.
The $COMMAND is the ref command (`ref', `xref' or `pxref', in
text, at sentence beginning or in parenthesis). The optionnal
$SECTION argument is the section in the book and BOOK is the book
title. $NODE_AND_FILE is the node and file name formatted
according to the convention used in info: `(file)node'. $HREF it
an hypertextual reference to the distant manual constructed using
the above function. $CROSS_REF_NAME is an optionnal cross
reference name appearing in the reference command. This function
returns the text corresponding with the external html manual
reference. This function returns the full formatted text of the
external reference.
File: texi2html.info, Node: Internal reference, Prev: Reference to external manual, Up: References
7.7.2 Reference to an internal node
-----------------------------------
A function reference is available for internal references.
-- Function Reference: $text internal_ref $command $href $short_name
$name $is_section
This function formats a reference to a node in the current manual.
The $COMMAND is the ref command (`ref', `xref' or `pxref', in
text, at sentence beginning or in parenthesis). $HREF it an
hypertextual reference linking to the corresponding node or
section. $SHORT_NAME and $NAME hold the text for the reference but
$SHORT_NAME can be the node name which is assumed to be shorter
than the section name. $IS_SECTION is a boolean true if the
reference is a reference to a section. This function returns the
full formatted text of the internal reference.
File: texi2html.info, Node: Alignement commands, Next: Paragraph and preformatted region, Prev: References, Up: Customizing HTML
7.8 Commands used for centering and flushing of text
====================================================
When a command controlling the alignement of text is used (`@center',
`@flushleft' and `@flushright'), the main program takes care of opening
and closing paragraphs. The alignement commands are the key of the `%paragraph_style'
hash. The value is used in the function doing the formatting of the
paragraphs. *Note Paragraph and preformatted region::.
A function references allows for a customization of the formatting
of the text appearing in the command block.
-- Function Reference: $result paragraph_style_command $command $text
$COMMAND is the command name, $TEXT is the text appearing within
the command. This function returns a formatted text. The default
is to return the text unmodified.
File: texi2html.info, Node: Paragraph and preformatted region, Next: Complex formats, Prev: Alignement commands, Up: Customizing HTML
7.9 Formatting or not a paragraph or a preformatted region
==========================================================
* Menu:
* Paragraph and preformatted formatting::
* Avoiding paragraphs::
File: texi2html.info, Node: Paragraph and preformatted formatting, Next: Avoiding paragraphs, Up: Paragraph and preformatted region
7.9.1 Paragraph and preformatted region formatting
--------------------------------------------------
The formatting of a paragraph region or a preformatted region, is
controlled by function references:
-- Function Reference: $paragraph_text paragraph $text $alignement
$formatting_command $formatting_command_formatted
\$paragraph_number $format $item_number $enumerate_style
$number
This function formats a paragraph. $TEXT is the text of the
paragraph, $ALIGNEMENT is the empty string when no alignement
command has been seen, otherwise it is the current alignement
command name. *Note Alignement commands::.
The remaining arguments are usefull when the paragraph appears
within a list or table. It is usefull whenever the paragraph has
to be formatted differently when appearing in such environments.
Moreover in that case the format command (`@itemize'...) may have
an associated formatting command. $FORMATTING_COMMAND is this
formatting command (like `@minus'). $FORMATTING_COMMAND_FORMATTED
is the command formatted in html in case the formatting command is
a leading command (like `@minus') which should be leading the
first paragraph. \$PARAGRAPH_NUMBER is a reference on the number
of paragraphs in that format command. The corresponding variable
should be increased when a paragraph is added. $FORMAT is the
format command. *Note Table and list items::.
If the $FORMAT is an enumerate, $ITEM_NUMBER is the number of the
item in the list, $ENUMERATE_STYLE is the argument of the
enumerate, $NUMBER is the number or letter corresponding with this
item.
-- Function Reference: $preformatted_text preformatted $text $style
$region_name $formatting_command
$formatting_command_formatted \$preformatted_number $format
$item_number $enumerate_style $number
This function formats a preformatted region. $TEXT is the text of
the preformatted region, $STYLE is the css style associated with
that preformatted region (*Note css::). $REGION_NAME is the name
of the command opening the preformatted region (`example'..., see
*Note Complex formats::) or a identifier for the preformatted
context (for example `menu-comment', see *Note Menus::). The
alignment commands are not taken into account, as the spaces are
preserved in preformatted regions, you should flush and center by
hand.
The remaining arguments are usefull when the preformatted region
appears within a list or table. It is usefull whenever the
preformatted region has to be formatted differently when appearing
in such environments. Moreover in that case the format command
(`@itemize'...) may have an associated formatting command.
$FORMATTING_COMMAND is this formatting command (like `@minus').
$FORMATTING_COMMAND_FORMATTED is the command formatted in html in
case the formatting command is a leading command (like `@minus')
which should be leading the first preformatted region.
\$PREFORMATTED_NUMBER is a reference on the number of preformatted
regions in that format command. The corresponding variable should
be increased when a preformatted region is added. $FORMAT is the
format command. *Note Table and list items::.
If the $FORMAT is an enumerate, $ITEM_NUMBER is the number of the
item in the list, $ENUMERATE_STYLE is the argument of the
enumerate, $NUMBER is the number or letter corresponding with this
item.
File: texi2html.info, Node: Avoiding paragraphs, Prev: Paragraph and preformatted formatting, Up: Paragraph and preformatted region
7.9.2 Avoiding paragraphs in formats
------------------------------------
It is possible to avoid that a format closes the previous paragraph or
preformatted region and reopens one, by putting the format command in a
hash, `%format_in_paragraph' with a true value.
File: texi2html.info, Node: Complex formats, Next: Lists tables, Prev: Paragraph and preformatted region, Up: Customizing HTML
7.10 Formatting of complex formats (`@example', `@display'...)
==============================================================
Here we see how a whole complex format is formatted. For the formatting
of the text, see *Note Paragraph and preformatted region::.
The formatting of the complex formats is ultimately controlled by a
function, however the default for this function uses a hash reference
and changing the hash reference values should be enough in most cases.
This hash reference is called `$complex_format_map'. It has a key for
each of the complex format commands (`example', `smallexample', `lisp',
`smalllisp', `display', `smalldisplay', `format', `smallformat').
The associated value is also a reference on a hash. The keys are
`begin' and `end'. An eval of `begin' should lead to the beginning of
the formatted HTML, an eval of `end' should lead to the end of the
formatted HTML. The enclosed text will be formatted as described in
*Note Paragraph and preformatted region::, and the name of the complex
format will be available to the function formatting the text.
If you aren't satisfied with this scheme, you can redefine the
following function reference for a better control over the complex
format formatting:
-- Function Reference: $complex_format_text complex_format
$format_name $preformatted_text
$FORMAT_NAME is the complex format name, $PREFORMATTED_TEXT is the
text allready formatted as described in *Note Paragraph and
preformatted region::. This function returns the whole complex
format.
File: texi2html.info, Node: Lists tables, Next: Definitions, Prev: Complex formats, Up: Customizing HTML
7.11 Customizing the formatting of lists and tables
===================================================
The formatting of lists and tables is done at two levels:
* At the level of the whole region (table or list),
* At the level of the individual items, rows or cells of the list or
table.
* Menu:
* Table and list items::
* Whole table list::
File: texi2html.info, Node: Table and list items, Next: Whole table list, Up: Lists tables
7.11.1 Formatting individual table and list items
-------------------------------------------------
In texinfo it is possible to give `@itemize' or table command (hereafter
called a "format command") a "formatting command". For example
`@minus' is the formatting command here:
@table @minus
The default is to apply the command to the text item, however it is
possible to avoid it. The hash `%special_list_commands' has an entry
for each of the format command. Each of these entries is a hash
reference. If a formatting command is a key of the hash reference, then
the formatting command is not applied to the text item for that format
command. For example, if we have:
$special_list_commands{'itemize'} = { 'bullet' => '' };
and we have the following `@itemize':
@itemize @bullet
@item an item
@end itemize
then `@bullet' will not be applied to `an item'.
_lists_
The items of lists are formatted using the following function
reference:
-- Function Reference: $list_item list_item $text $format
$command $formatted_command $item_number
$enumerate_style $number
This function formats the text between `@item' commands. $TEXT
is the text corresponding with the item. $FORMAT is the type
of format, `itemize' or `enumerate'. $COMMAND is the
formatting command given in argument to `@itemize',
$FORMATTED_COMMAND is this command formatted if it is a
leading command, like `@minus'.
If the $FORMAT is an enumerate, $ITEM_NUMBER is the number of
the item in the list, $ENUMERATE_STYLE is the argument of the
enumerate, $NUMBER is the number or letter corresponding with
this item.
_two column tables_
The two columns tables (`@table', `@ftable' and `@vtable'), items
are formatted using two function references, one for the first
line located on the `@item' line corresponding with the first
column, the other for the text appearing on the following lines,
corresponding with the second column text.
-- Function Reference: $table_item table_item $item_text
$index_label_text $format $command $formatted_command
This function is used to format the text on the `@item' line.
$TEXT_ITEM is the text line. In case there is an index entry
associated with the `@item' (as with `@ftable' and
`@vtable'), $INDEX_LABEL_TEXT is the text inserted at the
place where an index entry appears. *Note Index entry place::.
$FORMAT is the type of format, `table', `ftable' or `vtable'.
$COMMAND is the formatting command given in argument to the
table format command, $FORMATTED_COMMAND is this command
formatted if it is a leading command, like `@minus'.
-- Function Reference: $table_line table_line $text
This function is used to format the text on the lines
following the `@item' line. $TEXT is the corresponding text.
_multitable_
The multitable elements formatting is controlled by the functions
associated with two function references. One for a cell, and the
other for a row.
-- Function Reference: $multitable_cell cell $text
This function is used to format the text of a multitable
cell, the text following a `@item' or a `@tab'. $TEXT is the
corresponding text.
-- Function Reference: $multitable_row row $text $item_command
This function is used to format a multitable row. $TEXT is
the row text, with cells allready formatted with the `$cell'
function reference. $ITEM_COMMAND is the command used to
introduce the row, such that it is possible to distinguish
between `@item' and `@headitem'.
File: texi2html.info, Node: Whole table list, Prev: Table and list items, Up: Lists tables
7.11.2 Formatting of a whole table or list
------------------------------------------
If the Texinfo command is a key of the `%format_map', the associated
value is used to specify the formatting of the construct, otherwise a
function is called. The value in `%format_map' associated with a
command is interpreted similarly with values associated with more
simpler commands:
* If the text is a word, it is considered to be an HTML element
name, and the whole table or list is enclosed between the element
opening and the element closing.
* If the text is a word followed by some text, the word and is
interpreted as above, and the text is considered to be the
attributes text of the element.
* If the text is empty nothing is added to the text.
In case the `%format_map' isn't used, a function reference called
`$table_list' should be redefined, the associated function will be
called each time a command isn't found in `%format_map'.
-- Function Reference: $whole_table_list table_list $command $text
$COMMAND is the Texinfo command name, $TEXT is the formatted items.
If you still want to use `%format_map' but differently from the
default, it is possible to redefine the following function reference:
-- Function Reference: $whole_table_list format $command $format $text
$COMMAND is the @-command, $FORMAT is the entry associated with
$COMMAND in `%format_map'. $TEXT is the formatted items.
File: texi2html.info, Node: Definitions, Next: Headings, Prev: Lists tables, Up: Customizing HTML
7.12 Definition commands formatting
===================================
The formatting of definition commands is controlled by a hash and four
functions. The hash describes how the text on the definition line is
interpreted, the functions control the formatting of the definition line
and the definition function text.
* Menu:
* Definition line::
* Definition formatting::
File: texi2html.info, Node: Definition line, Next: Definition formatting, Up: Definitions
7.12.1 Customizing the interpretation of a definition line
----------------------------------------------------------
The keys of the hash `%def_map' are definition command names. There
are two types of entries:
* If the command is a shortcut for another definition command the
value is a text and the definition command is replaced by the text.
For example if we have:
$def_map{'deftruc'} = '@defvr {A truc}';
and a line like
@deftruc var
the line will be transformed in
@defvr {A truc} var
* If the command isn't a shortcut, it is associated with an array
reference. The first element is `f', `v' or `t' corresponding with
the index type (`f' for function, `v' for variable, `t' for type).
The remaining of the array describes how to interpret the text
following the definition command on the definition command line.
The entry item specify what corresponds with the next bracketed
item or word. Currently the possibilities are `category', `name',
`type', `class' and `arg'.
For example if we have
def_map{'defvr'} = [ 'v', 'category', 'name' ];
The first bracketed item following `@defvr' is considered to be
the category and the next one is the name. The index associated
with the definition line is the variables index.
File: texi2html.info, Node: Definition formatting, Prev: Definition line, Up: Definitions
7.12.2 Customization of the definition formatting
-------------------------------------------------
Four functions are used when formatting a definition command:
category name
-- Function Reference: $category definition_category
$category_or_name $class $style
This function precise a category or an index entry name
associating a class $CLASS (if given) with $CATEGORY_OR_NAME.
The $STYLE of the definition may be `f', for function, `v',
for variable or `t', for type.
formatting of the definition line
-- Function Reference: $line def_line $category $name $type
$arguments $index_label
This function formats the definition line. $CATEGORY is the
category formatted with `$definition_category', $NAME, $TYPE
and ARGUMENTS are the element of the definition line.
$INDEX_LABEL is the text inserted at the place where an index
entry appears. *Note Index entry place::.
definition text
-- Function Reference: $definition_text def_item $text
This function formats the definition text, $TEXT.
the whole definition
-- Function Reference: $definition def $text
This function formats the whole definition. The definition
line and text formatted by the above functions are in $TEXT.
File: texi2html.info, Node: Headings, Next: Special regions, Prev: Definitions, Up: Customizing HTML
7.13 Customizing headings formatting
====================================
A function controls the formatting of sectioning element headings, with
the corresponding function reference:
-- Function Reference: $heading_text heading \%element_reference
The \%ELEMENT_REFERENCE is a reference on a hash corresponding
with the sectioning element. The following keys are of interest:
`text'
The heading text
`name'
The heading text without section number
`node'
true if the sectioning element is a node without associated
structuring command
`level'
The level of the element in the document tree. `0' is for
`@top', `1' for `@chapter' and so on
`tag_level'
the sectioning element name, with `@raisesections' and
`@lowersections' taken into account
File: texi2html.info, Node: Special regions, Next: Menus, Prev: Headings, Up: Customizing HTML
7.14 Formatting of special regions (`@verbatim', `@cartouche', `@quotation')
============================================================================
Regions corresponding with raw text, like `@verbatim', `@html' or
`@tex' are formatted according to the following function reference:
-- Function Reference: $raw_region raw $command $text
$COMMAND is the command name, $TEXT is the raw text.
If LaTeX2HTML is used, `@tex' regions are handled differently, from
within the main program.
The `@cartouche' command formatting is controlled by the function
reference:
-- Function Reference: $cartouche cartouche $text
$TEXT is the text appearing within the cartouche.
The formatting of `@quotation' is controlled by two function
references. The first one is usefull in case the `@quotation' has an
argument, as it allows to prepend a string to the quotation text:
-- Function Reference: $prepended_string quotation_prepend_text $style
$text
$STYLE is the first argument of the `@quotation' if there are two
arguments. $TEXT is the second argument or the first if there is
one argument. There are still @-commands in these strings. This
function can return a string which will be prepended to the
quotation text.
The whole quotation is formatted by:
-- Function Reference: $quotation quotation $quotation_text
$argument_text $argument_style_texi $argument_style_id
$QUOTATION_TEXT is the quotation text, formatted, with the text
prepended by the function above. $ARGUMENT_TEXT is the second
argument of the `@quotation' or the first if there is one
argument, formatted. The other arguments are defiend if there are
two arguments for the `@quotation', $ARGUMENT_STYLE_TEXI is this
argument, with @-commands, and $ARGUMENT_STYLE_ID is this
argument transformed in an identifier which can be used as an XML
identifier.
File: texi2html.info, Node: Menus, Next: Indices, Prev: Special regions, Up: Customizing HTML
7.15 Menu formatting
====================
To understand how the formatting of menus is controlled, the different
parts of a menu are first described, then how to control the formatting
of each of these parts.
* Menu:
* Menu parts:: A menu consists in menu entry and menu
comments
* Menu formatting::
File: texi2html.info, Node: Menu parts, Next: Menu formatting, Up: Menus
7.15.1 The structure of a menu
------------------------------
In `texi2html', a menu is considered to be composed of 2 parts, the
"menu entries" and the "menu comments". Menu entries are further
divided in an "entry link" and optionnaly an "entry description". The
entry link consists in a node name and an optionnal menu entry name.
A menu entry begins with `*' at the beginning of the line. It begins
with the entry link, followed by the description. The description spans
until the next menu entry, or some text begining at the first character
of a line or an empty line, not contained within a command block which
begun in the description. An empty line or a line with text at the
first character starts a menu comment, which spans until the next menu
entry.
Here is an illustration of these rules:
@menu
* node name: entry name. description begins
description continues
* another menu entry::
description begins
description continues
A menu comment, after an empty line
* node:: description begins
A menu comment. The line starts at the first character
* last entry:: description begins _text
of the description, even if the line begins at the first character,
because we are in @emph_.
@end menu
File: texi2html.info, Node: Menu formatting, Prev: Menu parts, Up: Menus
7.15.2 The formatting of the different menu components
------------------------------------------------------
In the default case, the name of the section corresponding with the
node is used instead of the node name. If `$NODE_NAME_IN_MENU' is true,
however, node names are used. If `$AVOID_MENU_REDUNDANCY' is true and
menu entry equal menu description the description isn't printed. This
is the default. Likewise, if node or section name equal entry name, do
not print entry name.
A symbol, `$MENU_SYMBOL' is put at the beginning of menu entries
when the node name is used. The default is `•'. If `$UNNUMBERED_SYMBOL_IN_MENU'
is true it is also put at the beginning of unnumbered section names.
This is not done by default.
The menu comments are considered to be preformatted text. The style
associated with this preformatted text is determined by `$MENU_PRE_STYLE'.
Default is `font-family: serif'. The css class associated with menu
comments is `menu-comments'.
Three function references are associated with the formatting of the
different parts of a menu:
-- Function Reference: $link menu_link $section \%state $href $node
$name $ending
$SECTION is the section name corresponding with the link, $HREF is
the link hypertextual reference. $HREF may be absent. \%STATE
holds informations about the current context. The only key which
could be of interest is `preformatted', true if the context is a
preformatted context. *Note Three contexts::. $NODE is the node
name, $NAME is the name of the node, and $ENDING is the text
ending the link entry.
-- Function Reference: $description menu_description $description_text
\%state
$DESCRIPTION_TEXT is the text of the menu description. \%STATE
should be used similarly than for the menu link.
-- Function Reference: $menu_comment menu_comment $text
$TEXT is the text of the menu comment. It is in a preformatted
environment.
The following function reference controls the formatting of a wole
menu:
-- Function Reference: $menu menu $menu_components_text
$MENU_COMPONENTS_TEXT is the formatted menu components text,
obtained as explained above.
The last function reference corresponds with a special case. It is
used when a menu entry appears within another block command, to avoid
the possibilities of invalid HTML production. In that case the menu
description and menu comments are not formatted specially, but treated
like normal text.
-- Function Reference: $link simple_menu_link $link_text $href $node
$name $ending
$LINK_TEXT is the text corresponding with the link name, $HREF is
the link hypertextual reference. $NODE is the node name, $NAME is
the name of the node, and $ENDING is the text ending the link
entry.
File: texi2html.info, Node: Indices, Next: Floats and lists of floats, Prev: Menus, Up: Customizing HTML
7.16 Indices formatting
=======================
Two different things needs to be handled for indices formatting, the
place where the index term appears, the index entry, and the index list
itself. The indexing commands like `@cindex' determines where index
entries appear, and the index list is printed with a `@printindex'
command.
* Menu:
* Index entry place:: Index entries in the main document are
targets for hypertext references
* Index list:: Customizing the formatting of the index list
File: texi2html.info, Node: Index entry place, Next: Index list, Up: Indices
7.16.1 Formatting of index entries
----------------------------------
Index entry places in the main text may be the target for hypertext
references. Their formatting is controlled by the function associated
with the following function reference:
-- Function Reference: $target index_entry_label $identifier
$preformatted
$IDENTIFIER should be used to create a target for links (typically
associated with a name or id attribute in HTML). $PREFORMATTED is
true if the index entry appeared in preformatted text.
File: texi2html.info, Node: Index list, Prev: Index entry place, Up: Indices
7.16.2 Customizing the formatting of index lists
------------------------------------------------
The index entries are sorted alphabetically. A whole index list is
considered to be composed of letter entries. A letter entry is composed
by all the index entries beginning with that letter. A letter may be a
non alphabetical character, but we call it letter here.
An index summary appears at the beginning and at the end of an index
list, and should be used to jump directly to a letter entry. Indices
lists may be split across pages, thus the different letters may appear
on different files. The number of index entries appearing on each page
is determined by a variable `$SPLIT_INDEX' if set. The default is to
split indices after 100 entries.
The formatting of all these elements is controlled by the following
function references:
_formatting of a letter in a summary_
-- Function Reference: $letter summary_letter $letter $file
$identifier
This function is used to format a letter appearing in a
summary, refering to a letter entry in the index list.
$LETTER is the letter. $FILE is the file name where the letter
entry appears. More precisely, it is empty when the letter
entry is on the same page than the summary, it contains the
file name when the index page is split accross page.
$IDENTIFIER is an identifier for the target letter entry.
_formatting of a summary_
-- Function Reference: $summary index_summary
\@alphabetical_letters \@nonalphabetical_letters
\@ALPHABETICAL_LETTERS and \@NONALPHABETICAL_LETTERS contain
the formatted summary letters, formatted with the above
function.
_formatting of an index entry_
-- Function Reference: $entry index_entry $entry_href $entry_text
$section_href $section_heading
$ENTRY_HREF is a reference to the place where the index entry
appeared, $ENTRY_TEXT is the corresponding text. $SECTION_HREF
is a reference to the beginning of the sectioning element
containing the index entry, $SECTION_HEADING is the heading
of the element.
_formatting of letter entry_
-- Function Reference: $letter_entry index_letter $letter
$identifier $index_entries_text
This function formats a letter entry, consisting in all the
index entries beginning with this letter. $LETTER is the
letter, $IDENTIFIER should be used to create a target for
links (typically links from summaries), and
$INDEX_ENTRIES_TEXT is the text of the index entries
formatted as described above.
_formatting of whole index_
-- Function Reference: $index print_index $index_text $index_name
$INDEX_TEXT is the text of all the index entries grouped by
letter appearing in that page formatted as above. INDEX_NAME
is the name of the index, the argument of `@printindex'.
File: texi2html.info, Node: Floats and lists of floats, Next: Footnotes, Prev: Indices, Up: Customizing HTML
7.17 Floats and lists of floats
===============================
Floats appear in the `@float' environment, optionaly with a style and a
label, and with optionnal `@caption' and `@shortcaption'. Their list
appear after a `@listoffloats'.
A hash reference is associated with each float, it is available in
some formatting functions. The keys are:
`caption_texi'
`shortcaption_texi'
A reference on an array containing the caption or shortcaption
lines, unformatted.
`style_texi'
The style with texi @-commands.
`style_id'
The unique identifier associated with the style.
`nr'
The number with the same conventions than makeinfo (use the
chapter number a dot and then the number of the float of that
style in the chapter, or an absolute number if in unnumbered).
`chapter_nr'
The number of the chapter containing the float.
`nr_in_chapter'
The number of the float in the chapter.
`absolut_nr'
The number of the float in the document.
`texi'
The label with @-commands.
`id'
The unique identifier associated with the label. Usefull to make
an anchor or a reference.
`element'
A reference on a structure representing the element the float
appear in.
* Menu:
* Floats:: Formatting of floats
* Lists of floats:: Formatting the lists of floats
File: texi2html.info, Node: Floats, Next: Lists of floats, Up: Floats and lists of floats
7.17.1 Formatting a float
-------------------------
First there is an occasion to construct a texinfo text for the caption,
using the caption texinfo lines and the informations in the float
structure. The returned lines will be formatted in the main program. A
function reference is used here:
-- Function Reference: (\@caption_lines_returned,
\@shortcaption_lines_returned) caption_shortcaption \%float
\@caption_lines \@shortcaption_lines
\%FLOAT is the structure defined above. \@CAPTION_LINES and
\@SHORTCAPTION_LINES are references on arrays containing the
texinfo lines for caption and short caption.
\@CAPTION_LINES_RETURNED and \@SHORTCAPTION_LINES_RETURNED are
references on an array containing the texinfo lines for the
caption and shortcaption.
Then the float is formatted with the following function reference:
-- Function Reference: $text float $float_text \%float $caption_text
$shortcaption_text
$FLOAT_TEXT is the text appearing within the `@float', formatted.
\%FLOAT is still the structure defined above. $CAPTION_TEXT and
$SHORTCAPTION_TEXT are the caption and short caption build with the
above function and formatted.
File: texi2html.info, Node: Lists of floats, Prev: Floats, Up: Floats and lists of floats
7.17.2 Formatting lists of floats
---------------------------------
A list of floats is introduced by `@listoffloats'. The argument of
`@listoffloats' is the "style". First the style texinfo can be modified
with the following function reference:
-- Function Reference: $style_texi_returned listoffloats_style
$style_texi
$STYLE_TEXI is the `@listoffloats' argument with texinfo
@-commands kept. It is possible to make changes to the $STYLE_TEXI
and return a modified string, still with @-commands. The modified
string is formatted in the main program.
After that, for each of the floats with that style, first there is a
possibility to modify the float style and the float caption before they
are formatted in the main program, with the following function
references:
-- Function Reference: $float_style_texi_returned
listoffloats_float_style $style_texi \%float
$STYLE_TEXI is the style, and \%FLOAT is the structure described
above. This function reference returns a style to be formatted in
the main program.
-- Function Reference: $caption_texi_returned listoffloats_caption
\%float
\%FLOAT is the structure described above. This function reference
returns a caption to be formatted in the main program.
Each entry is formatted by:
-- Function Reference: $listoffloats_entry listoffloats_entry
$style_texi \%float $float_style $caption $href
$STYLE_TEXI is the style with @-commands, $FLOAT_STYLE is the
style returned by the above function and formatted. $CAPTION is the
caption returned by the above function formatted. \%FLOAT is the
structure corresponding with the float, and $HREF is an href
pointing to the float location.
Lastly, the whole `@listoffloats' is formatted by:
-- Function Reference: $listoffloats listoffloats $style_texi $style
\@listoffloats_entries
$STYLE_TEXI is the style with @-commands, $STYLE is the style
returned by the above function and formatted. The array reference
\@LISTOFFLOATS_ENTRIES holds the entries formatted by the above
function.
File: texi2html.info, Node: Footnotes, Next: Other and unknown commands, Prev: Floats and lists of floats, Up: Customizing HTML
7.18 Customizing the footnotes formatting
=========================================
Each footnote is associated with a footnote entry. Several footnote
entries are grouped in a footnote section. When a footnote appears, two
things must be formatted: in the main text the place where the footnote
appear and the footnote text.
Two functions, with corresponding function references control the
formatting of the footnotes:
-- Function Reference: (\@lines $text_for_document) foot_line_and_ref
$number_in_doc $number_in_page $footnote_id $place_id
$document_file $footnote_file \@lines \%state
$NUMBER_IN_DOC is the footnote number in the whole document,
$NUMBER_IN_PAGE is the footnote number in the current page.
$FOOTNOTE_ID is an identifier for the footnote in the footnote text
which should be used to make target for references to that
footnote, while $PLACE_ID is an identifier for the location of the
footnote in the main document. Similarly, $DOCUMENT_FILE is the
file name of the file containing the text where the footnote
appears in the main document, while $FOOTNOTE_FILE is the file
name of the file where the footnote text appears.
\@LINES is a reference on an array containing the footnote text
lines, allready formatted. And \%STATE holds informations about
the context at the footnote place in the main document. As usual
the most usefull entry is `preformatted' which is true if the
footnote appears in a preformatted context.
This function returns a reference on an array, \@LINES containing
the updated footnote text for the footnote entry, and
$TEXT_FOR_DOCUMENT, the text appearing at the footnote place in
the main document, linking to the footnote entry.
The following function is only used when footnotes are at the bottom
of a page and the document is split. For customization of the
footnotes page in case they are on a separated page or section, *Note
Special pages layout::. For the determination of the footnote
locations, *Note Page layout options::.
-- Function Reference: foot_section \@footnotes_lines
This function formats a group of footnotes. \@FOOTNOTES_LINES is a
reference on an array holding the lines of all the footnote entries
formatted as explained above. This function modifies the reference.
File: texi2html.info, Node: Other and unknown commands, Prev: Footnotes, Up: Customizing HTML
7.19 Customizing other commands, and unknown commands
=====================================================
Many commands without braces are available in texinfo, sometimes with a
specific syntax. For example we have `@sp', `@noindent',
`@documentlanguage', `@oddheading', `@headings', `@shortcontents',
`@shorttitlepage' or `@comment'. `texi2html' interprets some of these
commands and some functions or variables are used for their formatting
or to access their information. In the default case, however, most of
these constructs are ignored.
It is possible to change how the things following these commands on
the line are handled, what is considered to be an arg for those
commands and it is also possible to keep them instead of discarding
them such that it is possible to handle them specially, with the same
function than the one used for unknown commands.
Those special commands without braces are the key of a hash: `%misc_command'.
The associated value is a reference on a hash enabling to set the
properties of these commands. The keys of this hash reference is the
name of a property, the value is the value of the property. For example
here we have `line' for the `arg' property for the `command' @-command.
$misc_command{'command'} = {'arg' => 'line', 'skip' => 'space'};
The properties and possible values are:
`skip'
This property enables to set what is skipped after the command
arguments. Here are the possible values:
`line'
The remaining of the line is skipped.
`space'
Spaces are skipped but not newline.
`whitespace'
Spaces are skipped
`linewhitespace'
Spaces are skipped if there are only spaces remaining on the
line.
`linespace'
Spaces are skipped, but not newline if there are only spaces
remaining on the line
`arg'
If the associated value is `line' the line is considered to be the
argument. If it is a number it is the number of args (separated by
spaces).
`texi'
If true the arguments are considered to real texinfo, therefore
`@value' and `@macro' are expanded.
`keep'
If true the args and the macro are kept, otherwise they are
discarded. The defaut is to have `keep' undef for all the
commands. If `keep' is true for `@verbatiminclude' the default
action for this macro isn't done.
Commands which don't appear in the hashes `%simple_map', `%simple_map_pre', `%simple_map_texi'
and `%misc_command', or that appear in `%misc_command' but with `keep'
true are processed by the following function reference:
-- Function Reference: ($result_line, $result, $result_text, $message)
unknown $command $line
$COMMAND is the @-command, $LINE is the line following the
$COMMAND. $RESULT is a boolean. If it is true then the other return
values are taken into account otherwise the default actions are
used. In case $RESULT is true, $RESULT_LINE is the new line to be
processed further, $RESULT_TEXT is the resulting formatted text
and $MESSAGE, if defined is a message outputted to the output with
line number added by `texi2html'.
Commands with braces not specified above nor in `%style_map', `%style_map_pre'
and `%style_map_texi' are processed by the following function reference
-- Function Reference: ($result, $result_text, $message) unknown_style
$command $text
$COMMAND is the @-command, $TEXT is the text appearing within the
braces (allready formatted). $RESULT is a boolean. If it is true
then the other return values are taken into account otherwise the
default actions are used. In case $RESULT is true, $RESULT_TEXT is
the resulting formatted text and $MESSAGE, if defined is a message
outputted to the output with line number added by `texi2html'.
File: texi2html.info, Node: Internationalization, Next: Indexop, Prev: Customizing HTML, Up: Top
Appendix A Internationalization
*******************************
The strings written in the document are selected based on the document
language. This can be used to customize the strings, as described in
*Note Strings::. This also enables translation of the strings.
* Menu:
* Translating strings::
* Adding new strings::
File: texi2html.info, Node: Translating strings, Next: Adding new strings, Up: Internationalization
A.1 Translating strings
=======================
If the language is allready supported, then there will be a file in the
`i18n' directory with name the two-letter ISO-639 language code. In
that case you can enhance the translations by editing this file. There
is a `$LANGUAGES->{'LANGUAGE'}' hash in that file. The keys are the
english strings, in `''', the values (in `''' after `=>') are the
translations. When a string contains a `%' followed by `{' NAME `}' it
means that the string will be expanded by `texi2html'. For an example,
see *Note Strings::.
After that you should run the command `./manage_i18n.pl all' in the
top directory, it should merge your file with the existing files in
`translations.pl', which is incorporated to the `texi2html' script by
`./configure'.
If the language isn't currently supported, copy the `en' file in
`i18n' to a file with name the two-letter ISO-639 language code of your
language and then add your translations to the strings. You could also
add your two-letter language code in the `manage_i18n.pl' file in the
`@known_languages' array.
After that you should similarly run the command `./manage_i18n.pl
all' in the top directory.
Obsoleted strings are not removed from the files, they are still
present in the `$T2H_OBSOLETE_STRINGS->{'LANGUAGE'}' hash in case the
string is reused later.
If you made change to strings specified in installed files (*note
Installation::) you will have to reinstall them otherwise the
installated files will take precedence (*note Using init files::).
File: texi2html.info, Node: Adding new strings, Prev: Translating strings, Up: Internationalization
A.2 Adding new strings written to document
==========================================
If you need to write strings, for example the new string A STRING to
the resulting document, call `&$I('a string')'. Use simple quotes. If
you want to substitute a value in the string put `%{STRING_VALUE}', in
the string, and give a second argument to `&$I', a hash reference with
key STRING_VALUE and value the what you want to substitute. Here is an
example:
return &$I('%{name} of %{class}', { 'name' => $name, 'class' => $class });
In that case `%{name}' is substituted by `$name' in the translated
string.
After that you should run the command `./manage_i18n.pl all' in the
top directory, it should add your new strings to all the files in the
`i18n' directory.
File: texi2html.info, Node: Indexop, Next: Indexvr, Prev: Internationalization, Up: Top
Appendix B Command Line Option Index
************************************
[index ]
* Menu:
* css-include=FILE: Style options. (line 24)
* def-table: Style options. (line 39)
* doctype=DTD: Style options. (line 8)
* DVAR: Texinfo related options.
(line 14)
* frames: Page layout options. (line 6)
* frameset-doctype: Style options. (line 10)
* frameset-doctype=DTD: Style options. (line 9)
* html-xref-prefix=PATH: Style options. (line 35)
* IDIR: Texinfo related options.
(line 25)
* if: Expansion. (line 10)
* include-css: css. (line 22)
* init-file: Using init files. (line 13)
* iso: Style options. (line 19)
* l2h: Expanding TeX regions.
(line 8)
* l2h-file: Expanding TeX regions.
(line 21)
* l2h-l2h=PROGRAM: Expanding TeX regions.
(line 13)
* l2h-tmp: Expanding TeX regions.
(line 17)
* lang <1>: Strings. (line 9)
* lang: Using init files. (line 22)
* lang=LANG: Texinfo related options.
(line 9)
* menu: Invoking texi2html. (line 18)
* no-if: Expansion. (line 12)
* node-files: Output files. (line 61)
* nomenu <1>: Expansion. (line 17)
* nomenu: Invoking texi2html. (line 18)
* nosec-nav: Page layout options. (line 11)
* number: Style options. (line 48)
* output: Output files. (line 35)
* PDIR: Texinfo related options.
(line 20)
* pkgdatadir=dir: Using init files. (line 8)
* pkgdatadir=DIR: Installation. (line 46)
* prefix: Output files. (line 39)
* separated-footnotes: Page layout options. (line 15)
* short-ext: Output files. (line 40)
* short-ref: Style options. (line 44)
* split: Splitting output. (line 8)
* sysconfdir=dir: Using init files. (line 10)
* toc-file: Output files. (line 43)
* toc-links: Style options. (line 52)
* top-file: Output files. (line 41)
* use-nodes: Splitting output. (line 38)
* UVAR: Texinfo related options.
(line 17)
File: texi2html.info, Node: Indexvr, Next: Indexcp, Prev: Indexop, Up: Top
Appendix C Variable Index
*************************
[index ]
* Menu:
* $AFTER_BODY_OPEN: Customizing header. (line 8)
* $AFTER_OVERVIEW: Contents and Overview text.
(line 21)
* $AFTER_TOC_LINES: Contents and Overview text.
(line 28)
* $anchor <1>: Anchors images and spaces.
(line 10)
* $anchor: Redefining functions. (line 15)
* $AVOID_MENU_REDUNDANCY: Menu formatting. (line 8)
* $BEFORE_OVERVIEW: Contents and Overview text.
(line 17)
* $BEFORE_TOC_LINES: Contents and Overview text.
(line 25)
* $BIG_RULE: The page layout. (line 12)
* $BODYTEXT <1>: Customizing header. (line 22)
* $BODYTEXT: Output initialization.
(line 20)
* $cell: Table and list items. (line 81)
* $CLOSE_QUOTE_SYMBOL <1>: String interface. (line 8)
* $CLOSE_QUOTE_SYMBOL: Hash reference interface.
(line 65)
* $complex_format_map: Complex formats. (line 12)
* $CSS_LINES: css. (line 10)
* $DEF_TABLE: Style options. (line 41)
* $DEFAULT_RULE: The page layout. (line 11)
* $definition_category: Definition formatting.
(line 20)
* $DO_CONTENTS: Contents and Overview text.
(line 9)
* $DO_SCONTENTS: Contents and Overview text.
(line 13)
* $DOCTYPE: Style options. (line 12)
* $DOCUMENT_DESCRIPTION: Customizing header. (line 16)
* $DOCUMENT_ENCODING: Customizing header. (line 11)
* $ENCODING: Customizing header. (line 14)
* $EXTENSION: File names. (line 8)
* $EXTERNAL_DIR: Style options. (line 37)
* $EXTRA_HEAD: Customizing header. (line 7)
* $FRAMES: Page layout options. (line 9)
* $FRAMESET_DOCTYPE: Style options. (line 12)
* $ICONS: General purpose variables.
(line 13)
* $IDX_SUMMARY: External index files. (line 9)
* $INDEX_CHAPTER: The page layout. (line 66)
* $L2H_L2H: Expanding TeX regions.
(line 14)
* $L2H_TMP: Expanding TeX regions.
(line 18)
* $LANG <1>: Strings. (line 9)
* $LANG <2>: Using init files. (line 22)
* $LANG: Texinfo related options.
(line 11)
* $LANGUAGES <1>: Translating strings. (line 6)
* $LANGUAGES: Strings. (line 13)
* $MENU_PRE_STYLE: Menu formatting. (line 19)
* $MENU_SYMBOL: Menu formatting. (line 13)
* $MIDDLE_RULE: The page layout. (line 11)
* $NODE_FILES <1>: File names. (line 9)
* $NODE_FILES: Output files. (line 62)
* $NODE_NAME_IN_MENU: Menu formatting. (line 7)
* $NUMBER_SECTIONS: Style options. (line 49)
* $OPEN_QUOTE_SYMBOL <1>: String interface. (line 8)
* $OPEN_QUOTE_SYMBOL: Hash reference interface.
(line 65)
* $OUT: Output files. (line 35)
* $PRE_BODY_CLOSE: Customizing footer. (line 7)
* $PREFIX: Output files. (line 39)
* $print_chapter_footer: Customizing footer. (line 20)
* $print_chapter_header: Customizing header. (line 38)
* $print_foot_navigation: Customizing footer. (line 9)
* $print_head_navigation: Customizing header. (line 26)
* $print_misc: Special pages layout. (line 33)
* $print_misc_footer: Special pages layout. (line 34)
* $print_misc_header: Special pages layout. (line 33)
* $print_page_foot: Customizing footer. (line 23)
* $print_page_head: Customizing header. (line 37)
* $print_section_footer: Customizing footer. (line 21)
* $print_section_header: Customizing header. (line 40)
* $print_Top: Special pages layout. (line 31)
* $print_Top_footer: Special pages layout. (line 32)
* $print_Top_header: Special pages layout. (line 31)
* $SECTION_NAVIGATION <1>: General purpose variables.
(line 16)
* $SECTION_NAVIGATION: Page layout options. (line 12)
* $SEPARATED_FOOTNOTES: Page layout options. (line 15)
* $SHORT_REF: Style options. (line 46)
* $SHORTEXTN: Output files. (line 41)
* $SHOW_MENU: Expansion. (line 18)
* $SMALL_RULE: The page layout. (line 11)
* $SPLIT: Splitting output. (line 9)
* $SPLIT_INDEX: Index list. (line 15)
* $T2H_OBSOLETE_STRINGS: Translating strings. (line 6)
* $Texi2HTML::NODE{Next}: Button specifications.
(line 59)
* $Texi2HTML::OVERVIEW <1>: Contents and Overview text.
(line 77)
* $Texi2HTML::OVERVIEW: Global informations. (line 89)
* $Texi2HTML::THIS_HEADER: Global informations. (line 85)
* $Texi2HTML::THIS_SECTION <1>: Global functions. (line 12)
* $Texi2HTML::THIS_SECTION: Global informations. (line 82)
* $Texi2HTML::TOC_LINES <1>: Contents and Overview text.
(line 77)
* $Texi2HTML::TOC_LINES: Global informations. (line 92)
* $TOC_FILE: Output files. (line 44)
* $TOC_LINKS: Style options. (line 54)
* $TOC_LIST_ATTRIBUTE: Contents and Overview text.
(line 35)
* $TOC_LIST_STYLE: Contents and Overview text.
(line 31)
* $TOP_FILE: Output files. (line 42)
* $TOP_HEADING: The page layout. (line 47)
* $UNNUMBERED_SYMBOL_IN_MENU: Menu formatting. (line 14)
* $USE_ISO: Style options. (line 21)
* $USE_NODES: Splitting output. (line 39)
* $VERTICAL_HEAD_NAVIGATION: General purpose variables.
(line 9)
* $WORDS_IN_PAGE <1>: Global functions. (line 14)
* $WORDS_IN_PAGE: Button specifications.
(line 21)
* %accent_map: Style and accent commands.
(line 26)
* %ACTIVE_ICONS: Button specifications.
(line 71)
* %BUTTONS_GOTO: Output initialization.
(line 21)
* %css_map: css. (line 7)
* %def_map: Definition line. (line 6)
* %format_in_paragraph: Avoiding paragraphs. (line 8)
* %format_map: Whole table list. (line 6)
* %main::value: Global informations. (line 67)
* %misc_command: Other and unknown commands.
(line 20)
* %NAVIGATION_TEXT <1>: Output initialization.
(line 21)
* %NAVIGATION_TEXT: Button specifications.
(line 64)
* %paragraph_style: Alignement commands. (line 8)
* %PASSIVE_ICONS: Button specifications.
(line 72)
* %pre_map: Commands without argument.
(line 23)
* %simple_map <1>: Other and unknown commands.
(line 65)
* %simple_map: Commands without argument.
(line 22)
* %simple_map_pre <1>: Other and unknown commands.
(line 65)
* %simple_map_pre: Commands without argument.
(line 22)
* %simple_map_texi <1>: Other and unknown commands.
(line 65)
* %simple_map_texi: Commands without argument.
(line 22)
* %special_list_commands: Table and list items. (line 12)
* %style_map <1>: Other and unknown commands.
(line 79)
* %style_map: Style and accent commands.
(line 10)
* %style_map_pre <1>: Other and unknown commands.
(line 79)
* %style_map_pre: Style and accent commands.
(line 11)
* %style_map_texi <1>: Other and unknown commands.
(line 80)
* %style_map_texi: Style and accent commands.
(line 11)
* %Texi2HTML::HREF: Elements hashes. (line 12)
* %Texi2HTML::NAME: Elements hashes. (line 9)
* %Texi2HTML::NO_TEXI: Elements hashes. (line 18)
* %Texi2HTML::NODE: Elements hashes. (line 15)
* %Texi2HTML::THISDOC: Global informations. (line 12)
* %texi_map: Commands without argument.
(line 23)
* %things_map: Commands without argument.
(line 23)
* @CHAPTER_BUTTONS: Button specifications.
(line 27)
* @CSS_FILES: Style options. (line 27)
* @EXPAND: Expansion. (line 13)
* @INCLUDE_DIRS: Texinfo related options.
(line 27)
* @MISC_BUTTONS: Button specifications.
(line 32)
* @NODE_FOOTER_BUTTONS: Button specifications.
(line 17)
* @PREPEND_DIRS: Texinfo related options.
(line 22)
* @SECTION_BUTTONS: Button specifications.
(line 10)
* @SECTION_FOOTER_BUTTONS: Button specifications.
(line 16)
File: texi2html.info, Node: Indexcp, Prev: Indexvr, Up: Top
Appendix D Concept Index
************************
[index ]
* Menu:
* Avoid paragraph opening: Avoiding paragraphs. (line 6)
* bug report: Top. (line 6)
* centering: Alignement commands. (line 6)
* complex format: Complex formats. (line 6)
* Config: Using init files. (line 6)
* configure: Installation. (line 6)
* downloading texi2html source: Obtaining texi2html. (line 6)
* examples of manuals: Overview. (line 6)
* external manual: Reference to external manual.
(line 6)
* flushing text: Alignement commands. (line 6)
* i18n <1>: Translating strings. (line 6)
* i18n: Strings. (line 6)
* Installation: Installation. (line 6)
* internationalization: Using init files. (line 6)
* internationalized strings: Adding new strings. (line 6)
* makeinfo: whytexi2html. (line 6)
* manage_i18n.pl: Adding new strings. (line 6)
* paragraph: Paragraph and preformatted formatting.
(line 6)
* preformatted region: Paragraph and preformatted formatting.
(line 6)
* reference: References. (line 6)
* skipped command: Other and unknown commands.
(line 6)
* source code for texi2html, downloading: Obtaining texi2html. (line 6)
* texi2html source, downloading: Obtaining texi2html. (line 6)
* Texinfo: Overview. (line 6)
* text alignement: Alignement commands. (line 6)
* Translation: Translating strings. (line 6)
* unknown command: Other and unknown commands.
(line 6)
Tag Table:
Node: Top2959
Node: Overview5587
Node: whytexi2html7377
Node: Obtaining texi2html9460
Node: Installation9743
Node: Invoking texi2html11933
Node: Splitting output13113
Node: Output files16447
Node: Expansion19709
Node: Texinfo related options20618
Node: Page layout options21685
Node: Style options22582
Node: Expanding TeX regions24902
Node: Using init files26048
Node: Initialization files27937
Node: Redefining functions29884
Node: Function prototypes30950
Node: Changing the page layout32026
Node: The different pages33384
Node: The page layout35102
Ref: Element labels36386
Node: Navigation panel38115
Node: General purpose variables38778
Node: Button specifications39555
Node: Panel formatting function42891
Node: Program variables43690
Node: Elements hashes44400
Node: Global informations44919
Node: Global functions47439
Node: Output initialization48184
Node: Output finalization49647
Node: css50124
Node: Customizing header51196
Node: Customizing section54009
Node: Customizing footer55013
Node: Special pages56893
Node: Special pages content57227
Node: Top element text57531
Node: Contents and Overview text58820
Node: Footnotes text61569
Node: About text61877
Node: Special pages layout63397
Node: File names64598
Node: External index files66479
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End Tag Table