forked from gambit/gambit
/
texi2html
executable file
·23887 lines (22271 loc) · 838 KB
/
texi2html
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#!/usr/bin/perl --
# perl
'di ';
'ig 00 ';
#+##############################################################################
#
# *** THIS PROGRAM WAS MODIFIED FOR PROCESSING THE GAMBIT MANUAL ***
#
# The original file can be found here
#
# http://nongnu.askapache.com/texi2html/texi2html-1.82.tar.gz
#
# The lines that were modified contain the comment "###GAMBIT###".
#
#-##############################################################################
#+##############################################################################
#
# texi2html: Program to transform Texinfo documents to HTML
#
# Copyright (C) 1999-2005 Patrice Dumas <dumas@centre-cired.fr>,
# Derek Price <derek@ximbiot.com>,
# Adrian Aichner <adrian@xemacs.org>,
# & others.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301 USA
#
#-##############################################################################
# The man page for this program is included at the end of this file and can be
# viewed using the command 'nroff -man texi2html'.
# for POSIX::setlocale and File::Spec
require 5.00405;
# Perl pragma to restrict unsafe constructs
use strict;
# used in case of tests, to revert to "C" locale.
use POSIX qw(setlocale LC_ALL LC_CTYPE);
# used to obtain the name of the current working directory
use Cwd;
# Used to find the parent directory of this script.
use File::Basename;
# used to find a relative path back to the current working directory
use File::Spec;
#
# According to
# larry.jones@sdrc.com (Larry Jones)
# this pragma is not present in perl5.004_02:
#
# Perl pragma to control optional warnings
# use warnings;
#++##########################################################################
#
# NOTE FOR DEBUGGING THIS SCRIPT:
# You can run 'perl texi2html.pl' directly, provided you have the script
# in the same directory with, or the environment variable T2H_HOME set to
# the directory containing, the texi2html.init, T2h_i18n.pm, translations.pl,
# l2h.init, & T2h_l2h.pm files
#
#--##########################################################################
my $T2H_HOME = defined $ENV{T2H_HOME} ? $ENV{T2H_HOME} : dirname $0;
if ($0 =~ /\.pl$/)
{
# Issue a warning in debugging mode if $T2H_HOME is set but isn't
# accessible.
if (!-e $T2H_HOME)
{ warn "T2H_HOME ($T2H_HOME) does not exist."; }
elsif (!-d $T2H_HOME)
{ warn "T2H_HOME ($T2H_HOME) is not a directory."; }
elsif (!-x $T2H_HOME)
{ warn "T2H_HOME ($T2H_HOME) is not accessible."; }
}
# CVS version:
# $Id: texi2html.pl,v 1.255 2009/01/05 11:44:48 pertusus Exp $
# Homepage:
my $T2H_HOMEPAGE = "http://www.nongnu.org/texi2html/";
# Authors (appears in comments):
my $T2H_AUTHORS = <<EOT;
texi2html was written by:
Lionel Cons <Lionel.Cons\@cern.ch> (original author)
Karl Berry <karl\@freefriends.org>
Olaf Bachmann <obachman\@mathematik.uni-kl.de>
and many others.
Maintained by: Many creative people.
Send bugs and suggestions to <texi2html-bug\@nongnu.org>
EOT
# Version: set in configure.in
my $THISVERSION = '1.82';
my $THISPROG = "texi2html $THISVERSION"; # program name and version
#+++########################################################################
# #
# Paths and file names #
# #
#---########################################################################
# set by configure, prefix for the sysconfdir and so on
my $prefix = '/usr/local';
my $datarootdir = '${prefix}/share';
my $sysconfdir;
my $pkgdatadir;
my $datadir;
# We need to eval as $prefix has to be expanded. However when we haven't
# run configure @sysconfdir will be expanded as an array, thus we verify
# whether configure was run or not
if ('${prefix}/etc' ne '@' . 'sysconfdir@')
{
$sysconfdir = eval '"${prefix}/etc"';
}
else
{
$sysconfdir = "/usr/local/etc";
}
if ('${datarootdir}' ne '@' . 'datadir@')
{
$pkgdatadir = eval '"${datarootdir}/texi2html"';
$datadir = eval '"${datarootdir}"';
}
else
{
$pkgdatadir = "/usr/local/share/texi2html";
$datadir = "/usr/local/share";
}
my $i18n_dir = 'i18n'; # name of the directory containing the per language files
my $conf_file_name = 'Config' ;
my $texinfo_htmlxref = 'htmlxref.cnf';
my $target_prefix = "t_h";
# directories for texi2html init files
my @texi2html_config_dirs = ('./');
push @texi2html_config_dirs, "$ENV{'HOME'}/.texi2html/" if (defined($ENV{'HOME'}));
push @texi2html_config_dirs, "$sysconfdir/texi2html/" if (defined($sysconfdir));
push @texi2html_config_dirs, "$pkgdatadir" if (defined($pkgdatadir));
# directories for texinfo configuration files
my @texinfo_config_dirs = ('./.texinfo/');
push @texinfo_config_dirs, "$ENV{'HOME'}/.texinfo/" if (defined($ENV{'HOME'}));
push @texinfo_config_dirs, "$sysconfdir/texinfo/" if (defined($sysconfdir));
push @texinfo_config_dirs, "$datadir/texinfo/" if (defined($datadir));
#+++########################################################################
# #
# Constants #
# #
#---########################################################################
my $DEBUG_MENU = 1;
my $DEBUG_INDEX = 2;
my $DEBUG_TEXI = 4;
my $DEBUG_MACROS = 8;
my $DEBUG_FORMATS = 16;
my $DEBUG_ELEMENTS = 32;
my $DEBUG_USER = 64;
my $DEBUG_L2H = 128;
my $ERROR = "***"; # prefix for errors
my $WARN = "**"; # prefix for warnings
my $VARRE = '[\w\-]+'; # RE for a variable name
my $NODERE = '[^:]+'; # RE for node names
my $MAX_LEVEL = 4;
my $MIN_LEVEL = 1;
#+++###########################################################################
# #
# Initialization #
# Some declarations, some functions that are GPL and therefore cannot be in #
# texi2html.init, some functions that are not to be customized. #
# Pasted content of File $(srcdir)/texi2html.init: Default initializations #
# #
#---###########################################################################
{
package Texi2HTML::Config;
sub load($)
{
my $file = shift;
eval { require($file) ;};
if ($@ ne '')
{
print STDERR "error loading $file: $@\n";
return 0;
}
return 1;
}
# customization options variables
use vars qw(
$DEBUG
$PREFIX
$VERBOSE
$SUBDIR
$IDX_SUMMARY
$SPLIT
$SHORT_REF
@EXPAND
$EXPAND
$TOP
$DOCTYPE
$FRAMESET_DOCTYPE
$ERROR_LIMIT
$CHECK
$TEST
$DUMP_TEXI
$MACRO_EXPAND
$USE_GLOSSARY
$INVISIBLE_MARK
$USE_ISO
$TOP_FILE
$TOC_FILE
$FRAMES
$SHOW_MENU
$NUMBER_SECTIONS
$USE_NODES
$USE_SECTIONS
$USE_NODE_TARGET
$USE_UNICODE
$USE_UNIDECODE
$TRANSLITERATE_NODE
$NODE_FILES
$NODE_NAME_IN_MENU
$AVOID_MENU_REDUNDANCY
$SECTION_NAVIGATION
$MONOLITHIC
$SHORTEXTN
$EXTENSION
$OUT
$NOVALIDATE
$DEF_TABLE
$LANG
$DO_CONTENTS
$DO_SCONTENTS
$SEPARATED_FOOTNOTES
$TOC_LINKS
$L2H
$L2H_L2H
$L2H_SKIP
$L2H_TMP
$L2H_CLEAN
$L2H_FILE
$L2H_HTML_VERSION
$EXTERNAL_DIR
@INCLUDE_DIRS
@PREPEND_DIRS
@CONF_DIRS
$IGNORE_PREAMBLE_TEXT
@CSS_FILES
@CSS_REFS
$INLINE_CONTENTS
$INLINE_INSERTCOPYING
);
# customization variables
# ENCODING is deprecated
use vars qw(
$ENCODING
$ENCODING_NAME
$DOCUMENT_ENCODING
$OUT_ENCODING
$IN_ENCODING
$DEFAULT_ENCODING
$MENU_PRE_STYLE
$MENU_PRE_COMPLEX_FORMAT
$CENTER_IMAGE
$EXAMPLE_INDENT_CELL
$SMALL_EXAMPLE_INDENT_CELL
$SMALL_FONT_SIZE
$SMALL_RULE
$DEFAULT_RULE
$MIDDLE_RULE
$BIG_RULE
$TOP_HEADING
$INDEX_CHAPTER
$SPLIT_INDEX
$HREF_DIR_INSTEAD_FILE
$USE_MENU_DIRECTIONS
$USE_UP_FOR_ADJACENT_NODES
$AFTER_BODY_OPEN
$PRE_BODY_CLOSE
$EXTRA_HEAD
$VERTICAL_HEAD_NAVIGATION
$WORDS_IN_PAGE
$ICONS
$UNNUMBERED_SYMBOL_IN_MENU
$SIMPLE_MENU
$MENU_SYMBOL
$USE_ACCESSKEY
$USE_REL_REV
$USE_LINKS
$OPEN_QUOTE_SYMBOL
$CLOSE_QUOTE_SYMBOL
$NO_BULLET_LIST_STYLE
$NO_BULLET_LIST_ATTRIBUTE
$TOP_NODE_FILE
$TOP_NODE_UP
$NODE_FILE_EXTENSION
$BEFORE_OVERVIEW
$AFTER_OVERVIEW
$BEFORE_TOC_LINES
$AFTER_TOC_LINES
$NEW_CROSSREF_STYLE
$TOP_HEADING_AT_BEGINNING
$USER
$USE_NUMERIC_ENTITY
$USE_SETFILENAME
$SEPARATE_DESCRIPTION
$IGNORE_BEFORE_SETFILENAME
$OVERVIEW_LINK_TO_TOC
$COMPLETE_IMAGE_PATHS
$DATE
%ACTIVE_ICONS
%NAVIGATION_TEXT
%PASSIVE_ICONS
%BUTTONS_NAME
%BUTTONS_GOTO
%BUTTONS_EXAMPLE
%BUTTONS_ACCESSKEY
%BUTTONS_REL
@CHAPTER_BUTTONS
@MISC_BUTTONS
@SECTION_BUTTONS
@SECTION_FOOTER_BUTTONS
@NODE_FOOTER_BUTTONS
@LINKS_BUTTONS
@IMAGE_EXTENSIONS
);
# customization variables which may be guessed in the script
#our $ADDRESS;
use vars qw(
$BODYTEXT
$CSS_LINES
$DOCUMENT_DESCRIPTION
$EXTERNAL_CROSSREF_SPLIT
);
# I18n
use vars qw(
$I
$LANGUAGES
);
# customizable subroutines references
use vars qw(
$print_section
$one_section
$end_section
$print_Top_header
$print_Top_footer
$print_Top
$print_Toc
$print_Overview
$print_Footnotes
$print_About
$print_misc_header
$print_misc_footer
$print_misc
$print_section_header
$print_section_footer
$print_chapter_header
$print_chapter_footer
$print_element_header
$print_page_head
$print_page_foot
$print_head_navigation
$print_foot_navigation
$button_icon_img
$print_navigation
$about_body
$print_frame
$print_toc_frame
$toc_body
$titlepage
$insertcopying
$css_lines
$print_redirection_page
$translate_names
$init_out
$finish_out
$node_file_name
$element_file_name
$node_target_name
$element_target_name
$placed_target_file_name
$inline_contents
$program_string
$preserve_misc_command
$protect_text
$anchor
$anchor_label
$element_label
$misc_element_label
$def_item
$def
$menu
$menu_command
$menu_link
$menu_description
$menu_comment
$simple_menu_link
$ref_beginning
$info_ref
$book_ref
$external_href
$external_ref
$internal_ref
$table_item
$table_line
$row
$cell
$list_item
$comment
$def_line
$def_line_no_texi
$heading_no_texi
$raw
$raw_no_texi
$heading
$element_heading
$paragraph
$preformatted
$foot_line_and_ref
$foot_section
$address
$image
$image_files
$index_entry_label
$index_entry
$index_entry_command
$index_letter
$print_index
$printindex
$index_summary
$summary_letter
$complex_format
$cartouche
$sp
$definition_category
$definition_index_entry
$table_list
$copying_comment
$documentdescription
$index_summary_file_entry
$index_summary_file_end
$index_summary_file_begin
$style
$format
$normal_text
$empty_line
$unknown
$unknown_style
$float
$caption_shortcaption
$caption_shortcaption_command
$listoffloats
$listoffloats_entry
$listoffloats_caption
$listoffloats_float_style
$listoffloats_style
$acronym_like
$quotation
$quotation_prepend_text
$paragraph_style_command
$heading_texi
$index_element_heading_texi
$format_list_item_texi
$begin_format_texi
$begin_style_texi
$begin_paragraph_texi
$tab_item_texi
$colon_command
$simple_command
$thing_command
$begin_special_region
$end_special_region
$PRE_ABOUT
$AFTER_ABOUT
);
# hash which entries might be redefined by the user
use vars qw(
$complex_format_map
%accent_map
%def_map
%format_map
%simple_map
%simple_map_pre
%simple_map_texi
%simple_map_math
%simple_map_pre_math
%simple_map_texi_math
%style_map
%style_map_pre
%style_map_texi
%simple_format_simple_map_texi
%simple_format_style_map_texi
%simple_format_texi_map
%command_type
%paragraph_style
%stop_paragraph_command
%format_code_style
%region_formats_kept
%texi_formats_map
%things_map
%pre_map
%texi_map
%unicode_map
%unicode_diacritical
%transliterate_map
%transliterate_accent_map
%no_transliterate_map
%ascii_character_map
%ascii_simple_map
%ascii_things_map
%numeric_entity_map
%perl_charset_to_html
%misc_pages_targets
%iso_symbols
%misc_command
%no_paragraph_commands
%css_map
%format_in_paragraph
%special_list_commands
%accent_letters
%unicode_accents
%special_accents
%inter_item_commands
$def_always_delimiters
$def_in_type_delimiters
$def_argument_separator_delimiters
%colon_command_punctuation_characters
@command_handler_init
@command_handler_process
@command_handler_finish
%command_handler
%special_style
);
# subject to change
use vars qw(
%makeinfo_encoding_to_map
%makeinfo_unicode_to_eight_bit
%eight_bit_to_unicode
%t2h_encoding_aliases
);
# needed in this namespace for translations
$I = \&Texi2HTML::I18n::get_string;
#
# Function refs covered by the GPL as part of the texi2html.pl original
# code. As such they cannot appear in texi2html.init which is public
# domain (at least the things coded by me, and, if I'm not wrong also the
# things coded by Olaf -- Pat).
#
$toc_body = \&T2H_GPL_toc_body;
$style = \&T2H_GPL_style;
$format = \&T2H_GPL_format;
$printindex = \&t2h_GPL_default_printindex;
$summary_letter = \&t2h_default_summary_letter;
sub T2H_GPL_toc_body($)
{
my $elements_list = shift;
return unless ($Texi2HTML::THISDOC{'DO_CONTENTS'} or
$Texi2HTML::THISDOC{'DO_SCONTENTS'} or $FRAMES);
my $current_level = 0;
my $ul_style = $NUMBER_SECTIONS ? $NO_BULLET_LIST_ATTRIBUTE : '';
foreach my $element (@$elements_list)
{
next if ($element->{'top'});
my $ind = ' ' x $current_level;
my $level = $element->{'toc_level'};
print STDERR "Bug no toc_level for ($element) $element->{'texi'}\n" if (!defined ($level));
if ($level > $current_level)
{
while ($level > $current_level)
{
$current_level++;
my $ln = "\n$ind<ul${ul_style}>\n";
$ind = ' ' x $current_level;
push(@{$Texi2HTML::TOC_LINES}, $ln);
}
}
elsif ($level < $current_level)
{
while ($level < $current_level)
{
$current_level--;
$ind = ' ' x $current_level;
my $line = "</li>\n$ind</ul>";
$line .= "</li>" if ($level == $current_level);
push(@{$Texi2HTML::TOC_LINES}, "$line\n");
}
}
else
{
push(@{$Texi2HTML::TOC_LINES}, "</li>\n");
}
# if there is more than one toc, in different files, the toc in
# the file different from $Texi2HTML::THISDOC{'toc_file'} may have
# wrong links, that is links that point to the same file and are
# therefore empty, although the section isn't in the current file,
# since it is in $Texi2HTML::THISDOC{'toc_file'}.
my $dest_for_toc = $element->{'file'};
my $dest_for_stoc = $element->{'file'};
my $dest_target_for_stoc = $element->{'target'};
if ($Texi2HTML::Config::OVERVIEW_LINK_TO_TOC)
{
$dest_for_stoc = $Texi2HTML::THISDOC{'toc_file'};
$dest_target_for_stoc = $element->{'tocid'};
}
$dest_for_toc = '' if ($dest_for_toc eq $Texi2HTML::THISDOC{'toc_file'});
$dest_for_stoc = '' if ($dest_for_stoc eq $Texi2HTML::THISDOC{'stoc_file'});
my $text = $element->{'text'};
#$text = $element->{'name'} unless ($NUMBER_SECTIONS);
my $toc_entry = "<li>" . &$anchor ($element->{'tocid'}, "$dest_for_toc#$element->{'target'}",$text);
my $stoc_entry = "<li>" . &$anchor ($element->{'stocid'}, "$dest_for_stoc#$dest_target_for_stoc",$text);
push (@{$Texi2HTML::TOC_LINES}, $ind . $toc_entry);
push(@{$Texi2HTML::OVERVIEW}, $stoc_entry. "</li>\n") if ($level == 1);
}
while (0 < $current_level)
{
$current_level--;
my $ind = ' ' x $current_level;
push(@{$Texi2HTML::TOC_LINES}, "</li>\n$ind</ul>\n");
}
@{$Texi2HTML::TOC_LINES} = () unless ($Texi2HTML::THISDOC{'DO_CONTENTS'});
if (@{$Texi2HTML::TOC_LINES})
{
unshift @{$Texi2HTML::TOC_LINES}, $BEFORE_TOC_LINES;
push @{$Texi2HTML::TOC_LINES}, $AFTER_TOC_LINES;
}
@{$Texi2HTML::OVERVIEW} = () unless ($Texi2HTML::THISDOC{'DO_SCONTENTS'} or $FRAMES);
if (@{$Texi2HTML::OVERVIEW})
{
unshift @{$Texi2HTML::OVERVIEW}, "<ul${ul_style}>\n";
push @{$Texi2HTML::OVERVIEW}, "</ul>\n";
unshift @{$Texi2HTML::OVERVIEW}, $BEFORE_OVERVIEW;
push @{$Texi2HTML::OVERVIEW}, $AFTER_OVERVIEW;
}
}
sub T2H_GPL_style($$$$$$$$$)
{ # known style
my $style = shift;
my $command = shift;
my $text = shift;
my $args = shift;
my $no_close = shift;
my $no_open = shift;
my $line_nr = shift;
my $state = shift;
my $style_stack = shift;
my $do_quotes = 0;
my $use_attribute = 0;
my $use_begin_end = 0;
if (ref($style) eq 'HASH')
{
#print STDERR "GPL_STYLE $command ($style)\n";
#print STDERR " @$args\n";
if (ref($style->{'args'}) ne 'ARRAY')
{
print STDERR "BUG: args not an array for command `$command'\n";
}
$do_quotes = $style->{'quote'};
if ((@{$style->{'args'}} == 1) and defined($style->{'attribute'}))
{
$style = $style->{'attribute'};
$use_attribute = 1;
$text = $args->[0];
}
elsif (defined($style->{'function'}))
{
$text = &{$style->{'function'}}($command, $args, $style_stack, $state, $line_nr);
}
}
else
{
if ($style =~ s/^\"//)
{ # add quotes
$do_quotes = 1;
}
if ($style =~ s/^\&//)
{ # custom
$style = 'Texi2HTML::Config::' . $style;
eval "\$text = &$style(\$text, \$command, \$style_stack)";
}
elsif ($style ne '')
{
$use_attribute = 1;
}
else
{ # no style
}
}
if ($use_attribute)
{ # good style
my $attribute_text = '';
if ($style =~ /^(\w+)(\s+.*)/)
{
$style = $1;
$attribute_text = $2;
}
# $text = "<${style}$attribute_text>$text</$style>" ;
$text = "<${style}$attribute_text>" . "$text" if (!$no_open);
$text .= "</$style>" if (!$no_close);
if ($do_quotes)
{
$text = $OPEN_QUOTE_SYMBOL . "$text" if (!$no_open);
$text .= $CLOSE_QUOTE_SYMBOL if (!$no_close);
}
}
if (ref($style) eq 'HASH')
{
if (defined($style->{'begin'}) and !$no_open)
{
$text = $style->{'begin'} . $text;
}
if (defined($style->{'end'}) and !$no_close)
{
$text = $text . $style->{'end'};
}
}
if ($do_quotes and !$use_attribute)
{
$text = $OPEN_QUOTE_SYMBOL . "$text" if (!$no_open);
$text .= $CLOSE_QUOTE_SYMBOL if (!$no_close);
}
return $text;
}
sub T2H_GPL_format($$$)
{
my $tag = shift;
my $element = shift;
my $text = shift;
return '' if (!defined($element) or ($text !~ /\S/));
return $text if ($element eq '');
my $attribute_text = '';
if ($element =~ /^(\w+)(\s+.*)/)
{
$element = $1;
$attribute_text = $2;
}
return "<${element}$attribute_text>\n" . $text. "</$element>\n";
}
my $t2h_default_file_number;
my $t2h_default_index_page_nr;
#my %t2h_default_element_indices;
my %t2h_default_index_letters_hash;
my %t2h_default_index_letters_array;
my %t2h_default_seen_files;
my $t2h_default_element_split_printindices;
my %t2h_default_split_files;
# FIXME call it where indices are split in main program
sub t2h_default_init_split_indices ()
{
#print STDERR "Do splitting of index letters, once.\n";
push @command_handler_process, \&t2h_default_index_rearrange_directions;
%t2h_default_index_letters_hash = ();
%t2h_default_index_letters_array = ();
%t2h_default_seen_files = ();
%t2h_default_split_files = ();
$t2h_default_element_split_printindices = undef;
$t2h_default_index_page_nr = 0;
$t2h_default_file_number = 0;
foreach my $index_name (keys %{$Texi2HTML::THISDOC{'indices'}})
{
#print STDERR "Gathering and sorting $index_name letters\n";
foreach my $key (keys %{$Texi2HTML::THISDOC{'indices'}->{$index_name}->[0]->{'entries'}})
{
my $letter = uc(substr($key, 0, 1));
$t2h_default_index_letters_hash{$index_name}->{$letter}->{$key} = $Texi2HTML::THISDOC{'indices'}->{$index_name}->[0]->{'entries'}->{$key};
}
my $entries_count = 0;
my @letters = ();
# use cmp if only letters or only symbols, otherwise symbols before
# letters
foreach my $letter (sort {
((($a =~ /^[[:alpha:]]/ and $b =~ /^[[:alpha:]]/) or
($a !~ /^[[:alpha:]]/ and $b !~ /^[[:alpha:]]/)) && $a cmp $b)
|| ($a =~ /^[[:alpha:]]/ && 1) || -1 } (keys(%{$t2h_default_index_letters_hash{$index_name}})))
{
my $letter_entry = {'letter' => $letter };
foreach my $key (sort {uc($a) cmp uc($b)} (keys(%{$t2h_default_index_letters_hash{$index_name}->{$letter}})))
{
push @{$letter_entry->{'entries'}}, $t2h_default_index_letters_hash{$index_name}->{$letter}->{$key};
}
push @letters, $letter_entry;
$entries_count += scalar(@{$letter_entry->{'entries'}});
#if ($SPLIT and $SPLIT_INDEX and $entries_count >= $SPLIT_INDEX)
# FIXME this is not right, above is right
# Don't split if document is not split
if ($SPLIT and $SPLIT_INDEX and $entries_count > $SPLIT_INDEX)
{
push @{$t2h_default_index_letters_array{$index_name}}, [ @letters ];
@letters = ();
$entries_count = 0;
}
}
push @{$t2h_default_index_letters_array{$index_name}}, [ @letters ] if (scalar(@letters));
}
}
sub t2h_default_associate_index_element($$$$)
{
my $element = shift;
my $is_top = shift;
my $docu_name = shift;
my $use_node_file = shift;
my ($file, $default_element_file);
if ($SPLIT)
{
# respect the default splitting
$default_element_file = $element->{'file'};
if ($t2h_default_seen_files{$default_element_file})
{
$file = $t2h_default_seen_files{$default_element_file};
}
else
{
if ($is_top eq 'top')
{
$file = $default_element_file;
}
else
{
$file = "${docu_name}_$t2h_default_file_number";
$file .= '.' . $Texi2HTML::THISDOC{'extension'} if
(defined($Texi2HTML::THISDOC{'extension'}));
}
$t2h_default_file_number++;
$t2h_default_seen_files{$default_element_file} = $file;
}
}
my $modify_file = ($SPLIT and (!$use_node_file or $t2h_default_split_files{$default_element_file}));
$element->{'file'} = $file if ($modify_file);
my $current_element = $element;
#print STDERR "Doing printindices for $element $element->{'texi'}, file $file (@{$element->{'place'}})\n";
my @places = @{$element->{'place'}};
@{$element->{'place'}} = ();
foreach my $place (@places)
{
unless ($place->{'command'} and $place->{'command'} eq 'printindex')
{
#print STDERR "HHHHHHHHH ($element->{'texi'}) place: $place->{'texi'}, current: $current_element->{'texi'}, $current_element->{'file'}\n";
push @{$current_element->{'place'}}, $place;
$place->{'file'} = $current_element->{'file'};
$place->{'element_ref'} = $current_element if ($place->{'element_ref'} and $current_element ne $element);
next;
}
my $printindex = $place;
my $index_name = $printindex->{'name'};
#print STDERR "Associate letters in $element->{'texi'} for $index_name\n";
my @letter_groups = ();
# empty index
next if (!exists($t2h_default_index_letters_array{$index_name}));
my @letters_split = @{$t2h_default_index_letters_array{$index_name}};
# index is not split
if (scalar(@letters_split) eq 1)
{
push @{$letter_groups[0]->{'letters'}}, @{$letters_split[0]};
}
# the element is at the level of splitting, then we split according to
# INDEX_SPLIT
elsif (!$element->{'top'} and $SPLIT and (($SPLIT eq 'node') or (defined($element->{'level'}) and $element->{'level'} <= $Texi2HTML::THISDOC{'split_level'})))
{
$t2h_default_split_files{$default_element_file} = 1;
foreach my $letters_split (@letters_split)
{
push @letter_groups, {'letters' => [@$letters_split]};
}
}
else
{ # we 'unsplit' index split if not located where document is indeed split
#print STDERR "UNSPLIT $element->{'texi'}, $index_name\n";
foreach my $letters_split (@letters_split)
{
push @{$letter_groups[0]->{'letters'}}, @$letters_split;
}
}
$letter_groups[0]->{'element'} = $current_element;
# may only happen if SPLIT
if (scalar(@letter_groups) > 1)
{ # this weird construct is there because the element use as a key is
# converted to a string by perl, losing its meaning as a reference,
# the reference must be recorded explicitly
$t2h_default_element_split_printindices->{$element}->{'element'} = $element;
push @{$t2h_default_element_split_printindices->{$element}->{'printindices'}}, $printindex;
#print STDERR "Pushing $element, $element->{'texi'}, $printindex\n";
foreach my $split_group (@letter_groups)
{
my $first_letter = $split_group->{'letters'}->[0]->{'letter'};
my $last_letter = $split_group->{'letters'}->[-1]->{'letter'};
if (!$split_group->{'element'})
{
#construct new element name
my $letters_heading;
if ($last_letter ne $first_letter)
{
$letters_heading = &$normal_text("$first_letter -- $last_letter");
}
else
{
$letters_heading = &$normal_text("$first_letter");
}
my ($name, $simple);
my $texi = "ADDED ELEMENT $element->{'texi'}: $letters_heading";
if (!defined($element->{'text'}))
{
my $element_heading_texi = &$heading_texi($element->{'tag'}, $element->{'texi'}, $element->{'number'});
my $heading_texi = &$index_element_heading_texi(
$element_heading_texi,
$element->{'tag'},
$element->{'texi'},
$element->{'number'},
$first_letter, $last_letter);
$name = main::substitute_line($heading_texi);
$simple = main::simple_format(undef,undef,$heading_texi);
}
else
{ # should never happen
$name = "$element->{'text'}: $letters_heading";
$simple = "$element->{'simple_format'}: $letters_heading";
}
#file and id
my $relative_file = $Texi2HTML::THISDOC{'file_base_name'} . '_' . $t2h_default_file_number;
$t2h_default_file_number++;
$relative_file .= '.' . $Texi2HTML::THISDOC{'extension'} if
(defined($Texi2HTML::THISDOC{'extension'}));
my $id = "index_split-$t2h_default_index_page_nr";
$t2h_default_index_page_nr++;
my $new_element = { 'file' => $relative_file, 'id' => $id, 'target' => $id, 'text' => $name, 'texi' => $texi, 'seen' => 1, 'simple_format' => $simple };
$split_group->{'element'} = $new_element;
$current_element = $new_element;
#print STDERR "Added $new_element->{'file'} for $new_element->{'texi'} ($first_letter:$last_letter)\n";
}
else
{ # this is the first index split, it is still associated with the element
#print STDERR "No file added for ($first_letter:$last_letter)\n";
}
}
$t2h_default_seen_files{$default_element_file} = $current_element->{'file'};
}
else
{
push @{$current_element->{'place'}}, $place;
}
$printindex->{'split_groups'} = \@letter_groups;
#print STDERR "$index_name processed for $element, $element->{'texi'} (@{$printindex->{'split_groups'}})\n";
}