3 ### texi2html customization script for Lilypond
4 ### Author: Reinhold Kainhofer <reinhold@kainhofer.com>, 2008.
5 ### Some code parts copied from texi2html and adapted.
9 ### Features implemented here:
10 ### -) For split manuals, the main page is index.html.
11 ### -) All @unnumbered* sections are placed into the same file
12 ### (implemented by split_at_numbered_sections)
13 ### -) Use our custom CSS file, with IE-specific fixes in another CSS file,
14 ### impelmented by lilypond_css_lines
15 ### -) TOC (folded, with the current page highlighted) in an overflown <div>
16 ### is added to every page; implemented by:
17 ### lilypond_print_element_header -- building of the TOC
18 ### lilypond_toc_body -- generation of customized TOC output
19 ### lilypond_print_page_head -- start <div id="main">
20 ### print_lilypond_page_foot -- closing id=main, output of footer & TOC
21 ### -) External refs are formatted only as "Text of the node" (not as >>see
22 ### "NODE" section "SECTION" in "BOOK"<< like with default texi2html). Also,
23 ### the leading "(book-name)" is removed.
24 ### Implemented by overriding lilypond_external_ref
25 ### -) Navigation bars on top/bottom of the page and between sections are not
26 ### left-aligned, but use a combination of left/center/right aligned table
27 ### cells; For this, I heavily extend the texi2html code to allow for
28 ### differently aligned cells and for multi-line tables);
29 ### Implemented in lilypond_print_navigation
30 ### -) Different formatting than the default: example uses the same formatting
32 ### -) Allow translated section titles: All section titles can be translated,
33 ### the original (English) title is associated with @translationof. This is
34 ### needed, because the file name / anchor is generated from the original
35 ### English title, since otherwise language-autoselection would break with
37 ### Since it is then no longer possible to obtain the file name from the
38 ### section title, I keep a sectionname<=>filename/anchor around. This way,
39 ### xrefs from other manuals can simply load that map and retrieve the
40 ### correct file name for the link. Implemented in:
41 ### lilypond_unknown (handling of @translationof, in case
42 ### extract_texi_filenames.py messes up...)
43 ### split_at_numbered_sections (correct file name: use the map)
44 ### lilypond_init_map (read in the externally created map from disk)
45 ### lilypond_external_href (load the map for xrefs, use the correct
47 ### -) The HTML anchors for all sections are derived from the node name /
48 ### section title (pre-generated in the .xref-map file). Implemented by:
49 ### lilypond_node_file_name (adjust node anchors)
50 ### split_at_numbered_sections (adjust section anchors)
53 ### Useful helper functions:
54 ### -) texinfo_file_name($node_name): returns a texinfo-compatible file name
55 ### for the given string $node_name (whitespace trimmed/replaced by -,
56 ### non-standard chars replaced by _xxxx (ascii char code) and forced to
57 ### start with a letter by prepending t_g if necessary)
60 package Texi2HTML::Config;
66 #############################################################################
67 ### SETTINGS FOR TEXI2HTML
68 #############################################################################
70 @Texi2HTML::Config::CSS_REFS = ("lilypond.css");
71 $Texi2HTML::Config::USE_ACCESSKEY = 1;
72 $Texi2HTML::Config::USE_LINKS = 1;
73 $Texi2HTML::Config::USE_REL_REV = 1;
74 $Texi2HTML::Config::element_file_name = \&split_at_numbered_sections;
75 $Texi2HTML::Config::print_element_header = \&lilypond_print_element_header;
76 $Texi2HTML::Config::print_page_foot = \&print_lilypond_page_foot;
77 $Texi2HTML::Config::print_navigation = \&lilypond_print_navigation;
78 $Texi2HTML::Config::external_ref = \&lilypond_external_ref;
79 $Texi2HTML::Config::external_href = \&lilypond_external_href;
80 $Texi2HTML::Config::toc_body = \&lilypond_toc_body;
81 $Texi2HTML::Config::css_lines = \&lilypond_css_lines;
82 $Texi2HTML::Config::unknown = \&lilypond_unknown;
83 $Texi2HTML::Config::print_page_head = \&lilypond_print_page_head;
85 # Examples should be formatted similar to quotes:
86 $Texi2HTML::Config::complex_format_map->{'example'} = {
87 'begin' => q{"<blockquote><pre class=\"example\">"},
88 'end' => q{"</pre></blockquote>\n"},
92 my @section_to_filename;
97 #############################################################################
99 #############################################################################
102 $Data::Dumper::Maxdepth = 2;
104 sub print_element_info($)
107 print "~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n";
108 print "Element: $element\n";
109 print Dumper($element);
116 #############################################################################
118 #############################################################################
120 # Convert a given node name to its proper file name (normalization as explained
121 # in the texinfo manual:
122 # http://www.gnu.org/software/texinfo/manual/texinfo/html_node/HTML-Xref-Node-Name-Expansion.html
123 sub texinfo_file_name($)
127 # File name normalization by texinfo:
128 # 1/2: letters and numbers are left unchanged
129 # 3/4: multiple, leading and trailing whitespace is removed
130 $text = main::normalise_space($text);
131 # 5/6: all remaining spaces are converted to '-', all other 7- or 8-bit
132 # chars are replaced by _xxxx (xxxx=ascii character code)
133 while ($text ne '') {
134 if ($text =~ s/^([A-Za-z0-9]+)//o) { # number or letter stay unchanged
136 } elsif ($text =~ s/^ //o) { # space -> '-'
138 } elsif ($text =~ s/^(.)//o) { # Otherwise use _xxxx (ascii char code)
140 if ( $ccode <= 0xFFFF ) {
141 $result .= sprintf("_%04x", $ccode);
143 $result .= sprintf("__%06x", $ccode);
147 # 7: if name does not begin with a letter, prepend 't_g' (so it starts with a letter)
148 if ($result !~ /^[a-zA-Z]/) {
149 $result = 't_g' . $result;
156 # Load a file containing a nodename<=>filename map (tab-sepatared, i.e.
157 # NODENAME\tFILENAME\tANCHOR
158 # Returns a ref to a hash "Node title" => ["FilenameWithoutExt", "Anchor"]
159 sub load_map_file ($)
164 if (open(XREFFILE, $mapfile)) {
166 while ( $line = <XREFFILE> ) {
167 # parse the tab-separated entries and insert them into the map:
169 my @entries = split(/\t/, $line);
170 if (scalar (@entries) == 3) {
171 $node_map->{$entries[0]} = [$entries[1], $entries[2]];
173 print STDERR "Invalid entry in the node file $mapfile: $line\n";
178 print STDERR "WARNING: Unable to load the map file $mapfile\n";
184 # Split the given path into dir and basename (with .texi removed). Used mainly
185 # to get the path/basename of the original texi input file
186 sub split_texi_filename ($)
189 my $docu_dir, $docu_name;
190 if ($docu =~ /(.*\/)/) {
191 chop($docu_dir = $1);
193 $docu_name =~ s/.*\///;
198 $docu_name =~ s/\.te?x(i|info)?$//;
199 return ($docu_dir, $docu_name);
206 #############################################################################
208 #############################################################################
210 # Include our standard CSS file, not hard-coded CSS code directly in the HTML!
211 # For IE, conditionally include the lilypond-ie-fixes.css style sheet
212 sub lilypond_css_lines ($$)
214 my $import_lines = shift;
215 my $rule_lines = shift;
216 return if (defined($CSS_LINES));
217 if (@$rule_lines or @$import_lines)
219 $CSS_LINES = "<style type=\"text/css\">\n<!--\n";
220 $CSS_LINES .= join('',@$import_lines) . "\n" if (@$import_lines);
221 $CSS_LINES .= join('',@$rule_lines) . "\n" if (@$rule_lines);
222 $CSS_LINES .= "-->\n</style>\n";
224 foreach my $ref (@CSS_REFS)
226 $CSS_LINES .= "<link rel=\"stylesheet\" type=\"text/css\" href=\"$ref\">\n";
228 $CSS_LINES .= "<!--[if lte IE 7]>\n<link href=\"lilypond-ie-fixes.css\" rel=\"stylesheet\" type=\"text/css\">\n<![endif]-->\n";
235 #############################################################################
236 ### SPLITTING BASED ON NUMBERED SECTIONS
237 #############################################################################
241 my $node_to_filename_map = ();
244 # This function makes sure that files are only generated for numbered sections,
245 # but not for unnumbered ones. It is called after texi2html has done its own
246 # splitting and simply returns the filename for the node given as first argument
247 # Nodes with the same filename will be printed out to the same filename, so
248 # this really all we need. Also, make sure that the file names for sections
249 # are derived from the section title. We also might want to name the anchors
250 # according to node titles, which works by simply overriding the id element of
252 # If an external nodename<=>filename/anchor map file is found (loaded in
253 # lilypond_init_out, use the externally created values, otherwise use the
255 sub split_at_numbered_sections($$$)
259 my $docu_name = shift;
260 my $docu_ext = $Texi2HTML::Config::EXTENSION;
262 my $node_name = main::remove_texi($element->{'node_ref'}->{'texi'});
263 # the snippets page does not use nodes for the snippets, so in this case
264 # we'll have to use the section name!
265 if ($node_name eq '') {
266 $node_name = main::remove_texi($element->{'texi'});
269 # If we have an entry in the section<=>filename map, use that one, otherwise
270 # generate the filename/anchor here. In the latter case, external manuals
271 # will not be able to retrieve the file name for xrefs!!! Still, I already
272 # had that code, so I'll leave it in in case something goes wrong with the
273 # extract_texi_filenames.py script in the lilypond build process!
274 if (exists ($node_to_filename_map->{$node_name})) {
275 (my $filename, my $anchor) = @{$node_to_filename_map->{$node_name}};
276 $filename .= ".$docu_ext" if (defined($docu_ext));
278 $element->{'id'} = $anchor;
279 # $element->{'node_ref'}->{'id'} = $anchor;
280 # unnumbered sections (except those at top-level!) always go to the same
281 # file as the previous numbered section
282 if (not ($element->{number}) and not ($lastfilename eq '') and ($element->{level} > 1)) {
283 $filename = $lastfilename;
285 if (($filename eq $lastfilename)) {
286 $$element{doc_nr} = $docnr;
289 $$element{doc_nr} = $docnr;
290 $lastfilename = $filename;
294 } elsif ($type eq "top" or $type eq "toc" or $type eq "doc" or $type eq "stoc" or $type eq "foot" or $type eq "about") {
295 # TOC, footer, about etc. are called with undefined $element and $type == "toc"|"stoc"|"foot"|"about"
298 print STDERR "WARNING: Node '$node_name' was NOT found in the map\n"
299 unless ($node_name eq '') or ($element->{'tag'} eq 'unnumberedsec')
300 or ($node_name =~ /NOT REALLY USED/);
302 # derive the name of the anchor (i.e. the part after # in the links!),
303 # don't use texi2html's SECx.x default!
304 my $sec_name = main::remove_texi($element->{'texi'});
305 # if we have a node, use its name:
306 if ($element->{'node_ref'}->{'texi'} ne '') {
307 $sec_name = main::remove_texi($element->{'node_ref'}->{'texi'});
309 my $anchor = $sec_name;
310 if ($element->{translationof}) {
311 $anchor = main::remove_texi($$element{translationof});
313 # normalize to the same file name as texinfo
314 $anchor = texinfo_file_name($anchor);
315 $element->{'id'} = $anchor;
316 $element->{'node_ref'}->{'id'} = $anchor;
317 # Numbered sections will get a filename Node_title, unnumbered sections will use
318 # the file name of the previous numbered section:
319 if (($element->{number}) or ($lastfilename eq '') or ($element->{level} == 1)) {
320 my $filename = $anchor;
321 $filename .= ".$docu_ext" if (defined($docu_ext));
323 $$element{doc_nr} = $docnr;
324 $lastfilename = $filename;
327 $$element{doc_nr} = $docnr;
328 return $lastfilename;
336 ## Load the map file for the corrently processed texi file. We do this
337 # using a command init handler, since texi2html does not have any
338 # other hooks that are called after THISDOC is filled but before phase 2
339 # of the texi2html conversion.
340 sub lilypond_init_map ()
342 my ($docu_dir, $docu_name) = split_texi_filename ($Texi2HTML::THISDOC{'input_file_name'});
343 my $map_filename = main::locate_include_file ("${docu_name}.$Texi2HTML::THISDOC{current_lang}.xref-map")
344 || main::locate_include_file ("${docu_name}.xref-map");
345 $node_to_filename_map = load_map_file ($map_filename);
347 push @Texi2HTML::Config::command_handler_init, \&lilypond_init_map;
351 #############################################################################
352 ### CLEANER LINK TITLE FOR EXTERNAL REFS
353 #############################################################################
355 # The default formatting of external refs returns e.g.
356 # "(lilypond-internals)Timing_translator", so we remove all (...) from the
357 # file_and_node argument. Also, we want only a very simple format, so we don't
358 # even call the default handler!
359 sub lilypond_external_ref($$$$$$)
364 my $file_node = shift;
366 my $cross_ref = shift;
368 my $displaytext = '';
370 # 1) if we have a cross ref name, that's the text to be displayed:
371 # 2) For the top node, use the (printable) name of the manual, unless we
372 # have an explicit cross ref name
373 # 3) In all other cases use the section name
374 if ($cross_ref ne '') {
375 $displaytext = $cross_ref;
376 } elsif (($section eq '') or ($section eq 'Top')) {
377 $displaytext = $book;
379 $displaytext = $section;
382 $displaytext = &$anchor('', $href, $displaytext) if ($displaytext ne '');
383 return &$I('%{node_file_href}', { 'node_file_href' => $displaytext });
385 # Default: format as "see <a ..>NODE</a> section 'SECTION' in BOOK". We don't want this!
386 # return t2h_default_external_ref($type, $section, $book, $file_node, $href, $cross_ref);
393 #############################################################################
394 ### HANDLING TRANSLATED SECTIONS: handle @translationof, secname<->filename
395 ### map stored on disk, xrefs in other manuals load that map
396 #############################################################################
399 # Try to make use of @translationof to generate files according to the original
400 # English section title...
401 sub lilypond_unknown($$$$$)
409 # the @translationof macro provides the original English section title,
410 # which should be used for file/anchor naming, while the title will be
411 # translated to each language
412 # It is already used by extract_texi_filenames.py, so this should not be
413 # necessary here at all. Still, I'll leave the code in just in case the
414 # python script messed up ;-)
415 if ($pass == 1 and $macro eq "translationof") {
416 if (ref($state->{'element'}) eq 'HASH') {
417 $state->{'element'}->{'translationof'} = main::normalise_space($line);
419 return ('', true, undef, undef);
421 return t2h_default_unknown($macro, $line, $pass, $stack, $state);
428 my %translated_books = ();
429 # Construct a href to an external source of information.
430 # node is the node with texinfo @-commands
431 # node_id is the node transliterated and transformed as explained in the
433 # node_xhtml_id is the node transformed such that it is unique and can
434 # be used to make an html cross ref as explained in the texinfo manual
435 # file is the file in '(file)node'
436 sub lilypond_external_href($$$)
440 my $node_hxmlt_id = shift;
442 my $original_func = \&t2h_default_external_href;
444 # 1) Keep a hash of book->section_map
445 # 2) if not file in keys hash => try to load the map (assign empty map if
446 # non-existent => will load only once!)
447 # 3) if node in the section=>(file, anchor) map, replace node_id and
448 # node_xhtml_id by the map's values
449 # 4) call the t2h_default_external_href with these values (or the old ones if not found)
451 if (($node_id ne '') and defined($file) and ($node_id ne 'Top')) {
452 my $map_name = $file;
453 $map_name =~ s/-big-page//;
455 # Load the map if we haven't done so already
456 if (!exists($translated_books{$map_name})) {
457 my ($docu_dir, $docu_name) = split_texi_filename ($Texi2HTML::THISDOC{'input_file_name'});
458 my $map_filename = main::locate_include_file ("${map_name}.$Texi2HTML::THISDOC{current_lang}.xref-map")
459 || main::locate_include_file ("${map_name}.xref-map");
460 $translated_books{$map_name} = load_map_file ($map_filename);
463 # look up translation. use these values instead of the old filename/anchor
464 my $section_name_map = $translated_books{$map_name};
465 my $node_text = main::remove_texi($node);
466 if (defined($section_name_map->{$node_text})) {
467 ($node_id, $node_hxmlt_id) = @{$section_name_map->{$node_text}};
469 print STDERR "WARNING: Unable to find node '$node_text' in book $map_name.\n";
474 return &$original_func($node, $node_id, $node_hxmlt_id, $file);
476 return &$original_func($node, $node_id, $node_hxmlt_id);
484 #############################################################################
485 ### CUSTOM TOC FOR EACH PAGE (in a frame on the left)
486 #############################################################################
488 my $page_toc_depth = 2;
489 my @default_toc = [];
491 # recursively generate the TOC entries for the element and its children (which
492 # are only shown up to maxlevel. All ancestors of the current element are also
493 # shown with their immediate children, irrespective of their level.
494 # Unnumbered entries are only printed out if they are at top-level or their
495 # parent element is an ancestor of the currently viewed node.
496 sub generate_ly_toc_entries($$$$)
499 my $element_path = shift;
500 my $maxlevel = shift;
501 my $always_show_unnumbered_children = shift;
502 # Skip undefined sections, plus all sections generated by index splitting
503 return() if (not defined($element) or exists($element->{'index_page'}));
505 my $level = $element->{'toc_level'};
506 my $is_parent_of_current = $element->{'id'} && $element_path->{$element->{'id'}};
507 my $print_children = ( ($level < $maxlevel) or $is_parent_of_current );
508 my $ind = ' ' x $level;
509 my $this_css_class = $is_parent_of_current ? " class=\"toc_current\"" : "";
511 my $entry = "$ind<li$this_css_class>" . &$anchor ($element->{'tocid'}, "$element->{'file'}#$element->{'id'}",$element->{'text'});
513 my $children = $element->{'section_childs'};
514 # Don't add unnumbered entries, unless they are at top-level or a parent of the current!
515 if (not ($element->{'number'} or $always_show_unnumbered_children)) {
518 if ( $print_children and defined($children) and (ref($children) eq "ARRAY") ) {
519 push (@result, $entry);
520 my @child_result = ();
521 foreach (@$children) {
522 push (@child_result, generate_ly_toc_entries($_, $element_path, $maxlevel, $is_parent_of_current));
524 # if no child nodes were generated, e.g. for the index, where expanded pages
525 # are ignored, don't generate a list at all...
527 push (@result, "\n$ind<ul$NO_BULLET_LIST_ATTRIBUTE>\n");
528 push (@result, @child_result);
529 push (@result, "$ind</ul></li>\n");
532 push (@result, $entry . "</li>\n");
538 # Print a customized TOC, containing only the first two levels plus the whole
539 # path to the current page
540 sub lilypond_generate_page_toc_body($)
543 my $current_element = $element;
545 $parentelements{$element->{'id'}} = 1;
546 # Find the path to the current element
547 while ( defined($current_element->{'sectionup'}) and
548 ($current_element->{'sectionup'} ne $current_element) )
550 $parentelements{$current_element->{'sectionup'}->{'id'}} = 1
551 if ($current_element->{'sectionup'}->{'id'} ne '');
552 $current_element = $current_element->{'sectionup'};
554 return () if not defined($current_element);
555 # Create the toc entries recursively
556 my @toc_entries = ("<div class=\"contents\">\n", "<ul$NO_BULLET_LIST_ATTRIBUTE>\n");
557 my $children = $current_element->{'section_childs'};
558 foreach ( @$children ) {
559 push (@toc_entries, generate_ly_toc_entries($_, \%parentelements, $page_toc_depth, False));
561 push (@toc_entries, "</ul>\n");
562 push (@toc_entries, "</div>\n");
566 sub lilypond_print_toc_div ($$)
570 my @lines = @$tocref;
571 # use default TOC if no custom lines have been generated
572 @lines = @default_toc if (not @lines);
574 print $fh "\n\n<div id=\"tocframe\">\n";
575 print $fh '<h4> ' . $Texi2HTML::NAME{'Contents'} . "</h4>\n";
576 foreach my $line (@lines) {
579 print $fh "</div>\n\n";
583 # Create the custom TOC for this page (partially folded, current page is
584 # highlighted) and store it in a global variable. The TOC is written out after
585 # the html contents (but positioned correctly using CSS), so that browsers with
586 # css turned off still show the contents first.
587 our @this_page_toc = ();
588 sub lilypond_print_element_header
591 my $first_in_page = shift;
592 my $previous_is_top = shift;
593 if ($first_in_page and not @this_page_toc) {
594 if (defined($Texi2HTML::THIS_ELEMENT)) {
595 # Create the TOC for this page
596 @this_page_toc = lilypond_generate_page_toc_body($Texi2HTML::THIS_ELEMENT);
599 return T2H_DEFAULT_print_element_header( $fh, $first_in_page, $previous_is_top);
602 # Generate the HTML output for the TOC
603 sub lilypond_toc_body($)
605 my $elements_list = shift;
606 # Generate a default TOC for pages without THIS_ELEMENT
607 @default_toc = lilypond_generate_page_toc_body(@$elements_list[0]);
608 return T2H_GPL_toc_body($elements_list);
611 # Print out the TOC in a <div> at the beginning of the page
612 sub lilypond_print_page_head($)
615 T2H_DEFAULT_print_page_head($fh);
616 print $fh "<div id=\"main\">\n";
619 # Print out the TOC in a <div> at the end of th page, which will be formatted as a
620 # sidebar mimicking a TOC frame
621 sub print_lilypond_page_foot($)
624 my $program_string = &$program_string();
625 print $fh "<p><font size='-1'>$program_string</font><br>$PRE_BODY_CLOSE</p>\n";
626 print $fh "<!-- FOOTER -->\n\n";
627 print $fh "<!-- end div#main here -->\n</div>\n\n";
629 # Print the TOC frame and reset the TOC:
630 lilypond_print_toc_div ($fh, \@this_page_toc);
634 print $fh "</body>\n</html>\n";
641 #############################################################################
642 ### NICER / MORE FLEXIBLE NAVIGATION PANELS
643 #############################################################################
645 sub get_navigation_text
648 my $text = $NAVIGATION_TEXT{$button};
649 if ( ($button eq 'Back') or ($button eq 'FastBack') ) {
650 $text = $text . $Texi2HTML::NODE{$button} . " ";
651 } elsif ( ($button eq 'Forward') or ($button eq 'FastForward') ) {
652 $text = " " . $Texi2HTML::NODE{$button} . $text;
653 } elsif ( $button eq 'Up' ) {
654 $text = " ".$text.": " . $Texi2HTML::NODE{$button} . " ";
660 # Don't automatically create left-aligned table cells for every link, but
661 # instead create a <td> only on an appropriate '(left|right|center)-aligned-cell-n'
662 # button text. It's alignment as well as the colspan will be taken from the
663 # name of the button. Also, add 'newline' button text to create a new table
664 # row. The texts of the buttons are generated by get_navigation_text and
665 # will contain the name of the next/previous section/chapter.
666 sub lilypond_print_navigation
670 my $vertical = shift;
672 # print $fh '<table cellpadding="', $spacing, '" cellspacing="', $spacing,
673 # "\" border=\"0\" class=\"nav_table\">\n";
674 print $fh "<table class=\"nav_table\">\n";
676 print $fh "<tr>" unless $vertical;
678 foreach my $button (@$buttons)
680 print $fh qq{<tr valign="top" align="left">\n} if $vertical;
681 # Allow (left|right|center)-aligned-cell and newline as buttons!
682 if ( $button =~ /^(.*)-aligned-cell-(.*)$/ )
684 print $fh qq{</td>} unless $beginofline;
685 print $fh qq{<td valign="middle" align="$1" colspan="$2">};
688 elsif ( $button eq 'newline' )
690 print $fh qq{</td>} unless $beginofline;
696 elsif (ref($button) eq 'CODE')
698 &$button($fh, $vertical);
700 elsif (ref($button) eq 'SCALAR')
702 print $fh "$$button" if defined($$button);
704 elsif (ref($button) eq 'ARRAY')
706 my $text = $button->[1];
707 my $button_href = $button->[0];
708 # verify that $button_href is simple text and text is a reference
709 if (defined($button_href) and !ref($button_href)
710 and defined($text) and (ref($text) eq 'SCALAR') and defined($$text))
712 if ($Texi2HTML::HREF{$button_href})
714 my $anchor_attributes = '';
715 if ($USE_ACCESSKEY and (defined($BUTTONS_ACCESSKEY{$button_href})) and ($BUTTONS_ACCESSKEY{$button_href} ne ''))
717 $anchor_attributes = "accesskey=\"$BUTTONS_ACCESSKEY{$button_href}\"";
719 if ($USE_REL_REV and (defined($BUTTONS_REL{$button_href})) and ($BUTTONS_REL{$button_href} ne ''))
721 $anchor_attributes .= " rel=\"$BUTTONS_REL{$button_href}\"";
725 $Texi2HTML::HREF{$button_href},
726 get_navigation_text($$text),
732 print $fh get_navigation_text($$text);
736 elsif ($button eq ' ')
737 { # handle space button
739 ($ICONS && $ACTIVE_ICONS{' '}) ?
740 &$button_icon_img($BUTTONS_NAME{$button}, $ACTIVE_ICONS{' '}) :
741 $NAVIGATION_TEXT{' '};
744 elsif ($Texi2HTML::HREF{$button})
746 my $btitle = $BUTTONS_GOTO{$button} ?
747 'title="' . $BUTTONS_GOTO{$button} . '"' : '';
748 if ($USE_ACCESSKEY and (defined($BUTTONS_ACCESSKEY{$button})) and ($BUTTONS_ACCESSKEY{$button} ne ''))
750 $btitle .= " accesskey=\"$BUTTONS_ACCESSKEY{$button}\"";
752 if ($USE_REL_REV and (defined($BUTTONS_REL{$button})) and ($BUTTONS_REL{$button} ne ''))
754 $btitle .= " rel=\"$BUTTONS_REL{$button}\"";
756 if ($ICONS && $ACTIVE_ICONS{$button})
760 $Texi2HTML::HREF{$button},
761 &$button_icon_img($BUTTONS_NAME{$button},
762 $ACTIVE_ICONS{$button},
763 $Texi2HTML::SIMPLE_TEXT{$button}),
772 $Texi2HTML::HREF{$button},
773 get_navigation_text ($button),
780 { # button is passive
782 $ICONS && $PASSIVE_ICONS{$button} ?
783 &$button_icon_img($BUTTONS_NAME{$button},
784 $PASSIVE_ICONS{$button},
785 $Texi2HTML::SIMPLE_TEXT{$button}) :
787 "[" . get_navigation_text($button) . "]";
789 print $fh "</td>\n" if $vertical;
790 print $fh "</tr>\n" if $vertical;
792 print $fh "</td>" unless $beginofline;
793 print $fh "</tr>" unless $vertical;
794 print $fh "</table>\n";
798 @Texi2HTML::Config::SECTION_BUTTONS =
799 ('left-aligned-cell-1', 'FastBack',
800 'center-aligned-cell-3', 'Top', 'Contents', 'Index', 'About',
801 'right-aligned-cell-1', 'FastForward',
803 'left-aligned-cell-2', 'Back',
804 'center-aligned-cell-1', 'Up',
805 'right-aligned-cell-2', 'Forward'
808 # buttons for misc stuff
809 @Texi2HTML::Config::MISC_BUTTONS = ('center-aligned-cell-3', 'Top', 'Contents', 'Index', 'About');
811 # buttons for chapter file footers
812 # (and headers but only if SECTION_NAVIGATION is false)
813 @Texi2HTML::Config::CHAPTER_BUTTONS =
814 ('left-aligned-cell-1', 'FastBack',
815 'center-aligned-cell-3', 'Top', 'Contents', 'Index', 'About',
816 'right-aligned-cell-1', 'FastForward',
819 # buttons for section file footers
820 @Texi2HTML::Config::SECTION_FOOTER_BUTTONS =
821 ('left-aligned-cell-1', 'FastBack',
822 'center-aligned-cell-3', 'Top', 'Contents', 'Index', 'About',
823 'right-aligned-cell-1', 'FastForward',
825 'left-aligned-cell-2', 'Back',
826 'center-aligned-cell-1', 'Up',
827 'right-aligned-cell-2', 'Forward'
830 @Texi2HTML::Config::NODE_FOOTER_BUTTONS =
831 ('left-aligned-cell-1', 'FastBack',
832 'center-aligned-cell-3', 'Top', 'Contents', 'Index', 'About',
833 'right-aligned-cell-1', 'FastForward',
835 'left-aligned-cell-2', 'Back',
836 'center-aligned-cell-1', 'Up',
837 'right-aligned-cell-2', 'Forward'
844 #############################################################################
846 #############################################################################
848 # For split pages, use index.html as start page!
849 if ($Texi2HTML::Config::SPLIT eq 'section') {
850 $Texi2HTML::Config::TOP_FILE = 'index.html';