cpython/Doc/perl/l2hinit.perl
Fred Drake 15796f791a do_cmd_textohtmlinfopage(): Rip out most of the boilerplate and move
it to the about.dat file.  Only what really needs to be
	generated is, and the remainder is easier to maintain than
	Perl code.
1998-11-30 19:25:47 +00:00

457 lines
14 KiB
Perl

#LaTeX2HTML Version 96.1 : dot.latex2html-init -*- perl -*-
#
# Significantly revised by Fred L. Drake, Jr. <fdrake@acm.org> for use
# with the Python documentation.
#
# New name to avoid distributing "dot" files with the Python documentation.
#
package Override;
use Cwd qw(getcwd);
package main;
$HTML_VERSION = 4.0;
$MAX_LINK_DEPTH = 2;
$ADDRESS = '';
$NO_FOOTNODE = 1;
$NUMBERED_FOOTNOTES = 1;
# Python documentation uses section numbers to support references to match
# in the printed and online versions.
#
$SHOW_SECTION_NUMBERS = 1;
$ICONSERVER = '../icons';
# Control where the navigation bars should show up:
$TOP_NAVIGATION = 1;
$BOTTOM_NAVIGATION = 1;
$AUTO_NAVIGATION = 0;
$BODYTEXT = 'bgcolor="#ffffff"';
$CHILDLINE = "\n<p><hr>\n";
$VERBOSITY = 0;
# default # of columns for the indexes
$INDEX_COLUMNS = 2;
$MODULE_INDEX_COLUMNS = 5;
# A little painful, but lets us clean up the top level directory a little,
# and not be tied to the current directory (as far as I can tell).
#
use Cwd;
use File::Basename;
($myname, $mydir, $myext) = fileparse(__FILE__, '\..*');
chop $mydir; # remove trailing '/'
$mydir = getcwd() . "$dd$mydir"
unless $mydir =~ s|^/|/|;
$LATEX2HTMLSTYLES = "$mydir$envkey$LATEX2HTMLSTYLES";
push (@INC, $mydir);
($myrootname, $myrootdir, $myext) = fileparse($mydir, '\..*');
chop $myrootdir;
# Hackish way to get the appropriate paper-*/ directory into $TEXINPUTS;
# pass in the paper size (a4 or letter) as the environment variable PAPER
# to add the right directory. If not given, the current directory is
# added instead for use with HOWTO processing.
#
if (defined $ENV{'PAPER'}) {
$mytexinputs = "$myrootdir${dd}paper-$ENV{'PAPER'}$envkey";
}
else {
$mytexinputs = getcwd() . $envkey;
}
$mytexinputs .= "$myrootdir${dd}texinputs";
sub custom_driver_hook{
#
# This adds the directory of the main input file to $TEXINPUTS; it
# seems to be sufficiently general that it should be fine for HOWTO
# processing.
#
my $file = @_[0];
my($jobname,$dir,$ext) = fileparse($file, '\..*');
$dir = make_directory_absolute($dir);
$dir =~ s/$dd$//;
$TEXINPUTS = "$dir$envkey$mytexinputs";
print "\nadding $dir to \$TEXINPUTS\n";
}
sub set_icon_size{
my($name, $w, $h) = @_;
$iconsizes{$name} = "width=$w height=$h";
}
foreach $name (split(/ /, 'up next previous contents index modules')) {
set_icon_size($name, 32, 32);
}
# The '_motif' is really annoying, and makes the HTML larger with no value
# added, so strip it off:
foreach $name (keys %icons) {
my $icon = $icons{$name};
$icon =~ s/_motif//;
$icons{$name} = $icon;
}
$CUSTOM_BUTTONS = '';
sub make_nav_panel{
('<table width="100%" cellpadding=0 cellspacing=0><tr><td width="20%">'
. ($NEXT_TITLE ? "$NEXT " : '')
. ($UP_TITLE ? "$UP " : '')
. ($PREVIOUS_TITLE ? "$PREVIOUS " : '')
. "</td>\n<td align=center width=\"60%\"><b>$t_title</b>"
. "</td>\n<td align=right width=\"20%\">"
. $CONTENTS
. ' ' . $CUSTOM_BUTTONS
. ' ' . $INDEX
. "</td></tr></table>\n<hr>\n"
. ($NEXT_TITLE ? "<b>Next:</b> $NEXT_TITLE\n" : '')
. ($UP_TITLE ? "<b>Up:</b> $UP_TITLE\n" : '')
. ($PREVIOUS_TITLE ? "<b>Previous:</b> $PREVIOUS_TITLE\n" : ''));
}
sub top_navigation_panel {
"<div class=navigation>\n"
. make_nav_panel()
. '<br><hr><p></div>';
}
sub bot_navigation_panel {
"<p>\n<div class=navigation><hr>"
. make_nav_panel()
. '</div>';
}
sub add_link {
# Returns a pair (iconic link, textual link)
my($icon, $current_file, @link) = @_;
my($dummy, $file, $title) = split($delim,
$section_info{join(' ',@link)});
if ($title && ($file ne $current_file)) {
$title = purify($title);
$title = get_first_words($title, $WORDS_IN_NAVIGATION_PANEL_TITLES);
return (make_href($file, $icon), make_href($file, "$title"))
}
elsif ($icon eq $up_visible_mark && $EXTERNAL_UP_LINK) {
return (make_href($EXTERNAL_UP_LINK, $icon),
make_href($EXTERNAL_UP_LINK, "$EXTERNAL_UP_TITLE"))
}
elsif (($icon eq $previous_visible_mark
|| $icon eq $previous_page_visible_mark)
&& $EXTERNAL_PREV_LINK && $EXTERNAL_PREV_TITLE) {
return (make_href($EXTERNAL_PREV_LINK, $icon),
make_href($EXTERNAL_PREV_LINK, "$EXTERNAL_PREV_TITLE"))
}
elsif (($icon eq $next_visible_mark
|| $icon eq $next_page_visible_mark)
&& $EXTERNAL_DOWN_LINK && $EXTERNAL_DOWN_TITLE) {
return (make_href($EXTERNAL_DOWN_LINK, $icon),
make_href($EXTERNAL_DOWN_LINK, "$EXTERNAL_DOWN_TITLE"))
}
(&inactive_img($icon), "");
}
sub add_special_link {
my($icon, $file, $current_file) = @_;
(($file && ($file ne $current_file)) ? make_href($file, $icon) : undef)
}
sub img_tag {
local($icon) = @_;
my $alt;
my $align = " align=bottom ";
# having this list hardcoded here is really bogus....
$alt = join('|', 'up', 'next_group', 'previous_group'
, 'next', 'previous', 'change_begin_right', 'change_begin'
, 'change_end_right', 'change_end', 'change_delete_right'
, 'change_delete', 'contents', 'index', 'modules');
if ($icon =~ /(gif|png)$/) {
$used_icons{$icon} = 1;
if ($icon =~ /change_(begin|end|delete)_right/) { $align = ' ' };
my $nav_border = "$NAV_BORDER";
if ($icon =~ /($alt)/) {
$alt = $1;
}
else {
$nav_border = '1';
$alt = '[*]';
};
if ($LOCAL_ICONS) {
return join('', '<img ', $iconsizes{$1}, $align
,'border=', $nav_border, ' alt="', $alt
,'" src="', $icon, '">' );
}
return join('', '<img ', $iconsizes{$1}, $align
,'border=', $nav_border, ' alt="', $alt, "\"\n"
,' src="', $ICONSERVER, "/$icon", '">' );
}
else {
return $icon;
}
}
sub gen_index_id {
# this is used to ensure common index key generation and a stable sort
my($str,$extra) = @_;
sprintf('%s###%s%010d', $str, $extra, ++$global{'max_id'});
}
sub make_index_entry {
my($br_id,$str) = @_;
# If TITLE is not yet available (i.e the \index command is in the title of the
# current section), use $ref_before.
$TITLE = $ref_before unless $TITLE;
# Save the reference
$str = gen_index_id($str, '');
$index{$str} .= make_half_href("$CURRENT_FILE#$br_id");
"<a name=\"$br_id\">$anchor_invisible_mark<\/a>";
}
sub insert_index{
my($mark,$datafile,$columns,$letters) = @_;
my $prog = "$myrootdir/tools/buildindex.py";
my $index;
if ($letters) {
$index = `$prog --columns $columns --letters $datafile`;
}
else {
$index = `$prog --columns $columns $datafile`;
}
s/$mark/$index/;
}
sub add_idx{
print "\nDoing the index ...";
close(IDXFILE);
insert_index($idx_mark, 'index.dat', $INDEX_COLUMNS, 1);
}
$idx_module_mark = '<tex2html_idx_module_mark>';
$idx_module_title = 'Module Index';
sub add_module_idx{
print "\nDoing the module index ...";
my $key;
open(MODIDXFILE, '>modindex.dat') || die "\n$!\n";
foreach $key (keys %Modules) {
# dump the line in the data file; just use a dummy seqno field
print MODIDXFILE "$Modules{$key}" . $IDXFILE_FIELD_SEP . "$key###\n";
}
close(MODIDXFILE);
insert_index($idx_module_mark, 'modindex.dat', $MODULE_INDEX_COLUMNS, 0);
}
# replace both indexes as needed:
sub add_idx_hook{
add_idx() if (/$idx_mark/);
add_module_idx() if (/$idx_module_mark/);
process_all_localmoduletables();
}
# In addition to the standard stuff, add label to allow named node files.
sub do_cmd_tableofcontents {
local($_) = @_;
$TITLE = $toc_title;
$tocfile = $CURRENT_FILE;
my($closures,$reopens) = preserve_open_tags();
anchor_label('contents', $CURRENT_FILE, $_); # this is added
join('', "<BR>\n", $closures
, make_section_heading($toc_title, 'H2'), $toc_mark
, $reopens, $_);
}
# In addition to the standard stuff, add label to allow named node files.
sub do_cmd_listoffigures {
local($_) = @_;
$TITLE = $lof_title;
$loffile = $CURRENT_FILE;
my($closures,$reopens) = preserve_open_tags();
anchor_label('lof', $CURRENT_FILE, $_); # this is added
join('', "<BR>\n", $closures
, make_section_heading($lof_title, 'H2'), $lof_mark
, $reopens, $_);
}
# In addition to the standard stuff, add label to allow named node files.
sub do_cmd_listoftables {
local($_) = @_;
$TITLE = $lot_title;
$lotfile = $CURRENT_FILE;
my($closures,$reopens) = preserve_open_tags();
anchor_label('lot', $CURRENT_FILE, $_); # this is added
join('', "<BR>\n", $closures
, make_section_heading($lot_title, 'H2'), $lot_mark
, $reopens, $_);
}
# In addition to the standard stuff, add label to allow named node files.
sub do_cmd_textohtmlinfopage {
local($_) = @_;
if ($INFO) { #
anchor_label("about",$CURRENT_FILE,$_); # this is added
} #
my $the_version = ''; # and the rest is
if ($t_date) { # mostly ours
$the_version = ",\n$t_date";
if ($PYTHON_VERSION) {
$the_version .= ", Release $PYTHON_VERSION";
}
}
$_ = (($INFO == 1)
? join('', $close_all
, "<strong>$t_title</strong>$the_version\n"
, `cat $myrootdir${dd}html${dd}about.dat`
, $open_all, $_)
: join('', $close_all, $INFO,"\n", $open_all, $_));
$_;
}
# $idx_mark will be replaced with the real index at the end
sub do_cmd_textohtmlindex {
local($_) = @_;
$TITLE = $idx_title;
$idxfile = $CURRENT_FILE;
if (%index_labels) { make_index_labels(); }
if (($SHORT_INDEX) && (%index_segment)) { make_preindex(); }
else { $preindex = ''; }
my $heading = make_section_heading($idx_title, 'h2') . $idx_mark;
my($pre,$post) = minimize_open_tags($heading);
anchor_label('genindex',$CURRENT_FILE,$_); # this is added
'<br>\n' . $pre . $_;
}
# $idx_module_mark will be replaced with the real index at the end
sub do_cmd_textohtmlmoduleindex {
local($_) = @_;
$TITLE = $idx_module_title;
anchor_label("modindex",$CURRENT_FILE,$_);
'<p>' . make_section_heading($idx_module_title, "h2")
. $idx_module_mark . $_;
}
# The bibliography and the index should be treated as separate sections
# in their own HTML files. The \bibliography{} command acts as a sectioning command
# that has the desired effect. But when the bibliography is constructed
# manually using the thebibliography environment, or when using the
# theindex environment it is not possible to use the normal sectioning
# mechanism. This subroutine inserts a \bibliography{} or a dummy
# \textohtmlindex command just before the appropriate environments
# to force sectioning.
# XXX This *assumes* that if there are two {theindex} environments, the
# first is the module index and the second is the standard index. This
# is sufficient for the current Python documentation, but that's about
# it.
sub add_bbl_and_idx_dummy_commands {
my $id = $global{'max_id'};
s/([\\]begin\s*$O\d+$C\s*thebibliography)/$bbl_cnt++; $1/eg;
s/([\\]begin\s*$O\d+$C\s*thebibliography)/$id++; "\\bibliography$O$id$C$O$id$C $1"/geo
#if ($bbl_cnt == 1)
;
#}
#----------------------------------------------------------------------
# (FLD) This was added
my(@parts) = split(/\\begin\s*$O\d+$C\s*theindex/);
if (scalar(@parts) == 3) {
# Be careful to re-write the string in place, since $_ is *not*
# returned explicity; *** nasty side-effect dependency! ***
print "\nadd_bbl_and_idx_dummy_commands ==> adding module index";
my $rx = "([\\\\]begin\\s*$O\\d+$C\\s*theindex[\\s\\S]*)"
. "([\\\\]begin\\s*$O\\d+$C\\s*theindex)";
s/$rx/\\textohtmlmoduleindex \1 \\textohtmlindex \2/o;
# Add a button to the navigation areas:
$CUSTOM_BUTTONS .= ("<a\n href=\"modindex.html\">"
. img_tag('modules.'.$IMAGE_TYPE) . "</a>");
}
else {
$global{'max_id'} = $id; # not sure why....
s/([\\]begin\s*$O\d+$C\s*theindex)/\\textohtmlindex $1/o;
s/[\\]printindex/\\textohtmlindex /o;
}
#----------------------------------------------------------------------
lib_add_bbl_and_idx_dummy_commands()
if defined(&lib_add_bbl_and_idx_dummy_commands);
}
# The bibliographic references, the appendices, the lists of figures and tables
# etc. must appear in the contents table at the same level as the outermost
# sectioning command. This subroutine finds what is the outermost level and
# sets the above to the same level;
sub set_depth_levels {
# Sets $outermost_level
my $level;
#RRM: do not alter user-set value for $MAX_SPLIT_DEPTH
foreach $level ("part", "chapter", "section", "subsection",
"subsubsection", "paragraph") {
last if (($outermost_level) = /\\($level)$delimiter_rx/);
}
$level = ($outermost_level ? $section_commands{$outermost_level} :
do {$outermost_level = 'section'; 3;});
#RRM: but calculate value for $MAX_SPLIT_DEPTH when a $REL_DEPTH was given
if ($REL_DEPTH && $MAX_SPLIT_DEPTH) {
$MAX_SPLIT_DEPTH = $level + $MAX_SPLIT_DEPTH;
} elsif (!($MAX_SPLIT_DEPTH)) { $MAX_SPLIT_DEPTH = 1 };
%unnumbered_section_commands = ('tableofcontents' => $level,
'listoffigures' => $level,
'listoftables' => $level,
'bibliography' => $level,
'textohtmlindex' => $level,
'textohtmlmoduleindex' => $level);
$section_headings{'textohtmlmoduleindex'} = 'h1';
%section_commands = (%unnumbered_section_commands,
%section_commands);
make_sections_rx();
}
# Fix from Ross Moore for ']' in \item[...]; this can be removed once the next
# patch to LaTeX2HTML is released and tested ... if the patch gets included.
# Be very careful to keep this around, just in case things break again!
#
sub protect_useritems {
local(*_) = @_;
local($preitems,$thisitem);
while (/\\item\s*\[/) {
$preitems .= $`;
$_ = $';
$thisitem = $&.'<<'.++$global{'max_id'}.'>>';
s/^(((($O|$OP)\d+($C|$CP)).*\3|<[^<>]*>|[^\]<]+)*)\]/$thisitem.=$1;''/e;
$preitems .= $thisitem . '<<' . $global{'max_id'} . '>>]';
s/^]//;
}
$_ = $preitems . $_;
}
# This changes the markup used for {verbatim} environments, and is the
# best way I've found that ensures the <dl> goes one the outside of the
# <pre>...</pre>.
#
# Note that this *must* be done in the init file, not the python.perl
# style support file. The %declarations must be set before initialize()
# is called in the main script.
#
%declarations = ('preform' => '<dl><dd><pre></pre></dl>',
%declarations);
1; # This must be the last line