add hg and python

1 files changed, 2172 insertions, 0 deletions

diff --git a/sys/src/cmd/python/Doc/perl/python.perl b/sys/src/cmd/python/Doc/perl/python.perl
new file mode 100644
index 000000000..ab93c7cf8
--- /dev/null
+++ b/sys/src/cmd/python/Doc/perl/python.perl
@@ -0,0 +1,2172 @@
+# python.perl by Fred L. Drake, Jr. <fdrake@acm.org>            -*- perl -*-
+#
+# Heavily based on Guido van Rossum's myformat.perl (now obsolete).
+#
+# Extension to LaTeX2HTML for documents using myformat.sty.
+# Subroutines of the form do_cmd_<name> here define translations
+# for LaTeX commands \<name> defined in the corresponding .sty file.
+
+package main;
+
+use warnings;
+use File::Basename;
+
+
+sub next_argument{
+    my $param;
+    $param = missing_braces()
+      unless ((s/$next_pair_pr_rx/$param=$2;''/eo)
+              ||(s/$next_pair_rx/$param=$2;''/eo));
+    return $param;
+}
+
+sub next_optional_argument{
+    my($param, $rx) = ('', "^\\s*(\\[([^]]*)\\])?");
+    s/$rx/$param=$2;''/eo;
+    return $param;
+}
+
+sub make_icon_filename($){
+    my($myname, $mydir, $myext) = fileparse($_[0], '\..*');
+    chop $mydir;
+    if ($mydir eq '.') {
+        $mydir = $ICONSERVER;
+    }
+    $myext = ".$IMAGE_TYPE"
+      unless $myext;
+    return "$mydir$dd$myname$myext";
+}
+
+sub get_link_icon($){
+    my $url = $_[0];
+    if ($OFF_SITE_LINK_ICON && ($url =~ /^[-a-zA-Z0-9.]+:/)) {
+        # absolute URL; assume it points off-site
+        my $icon = make_icon_filename($OFF_SITE_LINK_ICON);
+        return (" <img src=\"$icon\"\n"
+                . '  border="0" class="offsitelink"'
+                . ($OFF_SITE_LINK_ICON_HEIGHT
+                   ? " height=\"$OFF_SITE_LINK_ICON_HEIGHT\""
+                   : '')
+                . ($OFF_SITE_LINK_ICON_WIDTH
+                   ? " width=\"$OFF_SITE_LINK_ICON_WIDTH\""
+                   : '')
+                . " alt=\"[off-site link]\"\n"
+                . "  />");
+    }
+    return '';
+}
+
+# This is a fairly simple hack; it supports \let when it is used to create
+# (or redefine) a macro to exactly be some other macro: \let\newname=\oldname.
+# Many possible uses of \let aren't supported or aren't supported correctly.
+#
+sub do_cmd_let{
+    local($_) = @_;
+    my $matched = 0;
+    s/[\\]([a-zA-Z]+)\s*(=\s*)?[\\]([a-zA-Z]*)/$matched=1; ''/e;
+    if ($matched) {
+        my($new, $old) = ($1, $3);
+        eval "sub do_cmd_$new { do_cmd_$old" . '(@_); }';
+        print "\ndefining handler for \\$new using \\$old\n";
+    }
+    else {
+        s/[\\]([a-zA-Z]+)\s*(=\s*)?([^\\])/$matched=1; ''/es;
+        if ($matched) {
+            my($new, $char) = ($1, $3);
+            eval "sub do_cmd_$new { \"\\$char\" . \$_[0]; }";
+            print "\ndefining handler for \\$new to insert '$char'\n";
+        }
+        else {
+            write_warnings("Could not interpret \\let construct...");
+        }
+    }
+    return $_;
+}
+
+
+# the older version of LaTeX2HTML we use doesn't support this, but we use it:
+
+sub do_cmd_textasciitilde{ '&#126;' . $_[0]; }
+sub do_cmd_textasciicircum{ '^' . $_[0]; }
+sub do_cmd_textbar{ '|' . $_[0]; }
+sub do_cmd_texteuro { '&#8364;' . $_[0]; }
+sub do_cmd_textgreater{ '&gt;' . $_[0]; }
+sub do_cmd_textless{ '&lt;' . $_[0]; }
+sub do_cmd_textunderscore{ '_' . $_[0]; }
+sub do_cmd_infinity{ '&infin;' . $_[0]; }
+sub do_cmd_plusminus{ '&plusmn;' . $_[0]; }
+sub do_cmd_guilabel{
+    return use_wrappers($_[0]. '<span class="guilabel">', '</span>'); }
+sub do_cmd_menuselection{
+    return use_wrappers($_[0], '<span class="guilabel">', '</span>'); }
+sub do_cmd_sub{
+    return '</span> &gt; <span class="guilabel">' . $_[0]; }
+
+
+# words typeset in a special way (not in HTML though)
+
+sub do_cmd_ABC{ 'ABC' . $_[0]; }
+sub do_cmd_UNIX{ '<span class="Unix">Unix</span>' . $_[0]; }
+sub do_cmd_LaTeX{ '<span class="LaTeX">LaTeX</span>' . $_[0]; }
+sub do_cmd_TeX{ '<span class="TeX">TeX</span>' . $_[0]; }
+sub do_cmd_ASCII{ 'ASCII' . $_[0]; }
+sub do_cmd_POSIX{ 'POSIX' . $_[0]; }
+sub do_cmd_C{ 'C' . $_[0]; }
+sub do_cmd_Cpp{ 'C++' . $_[0]; }
+sub do_cmd_EOF{ 'EOF' . $_[0]; }
+sub do_cmd_NULL{ '<tt class="constant">NULL</tt>' . $_[0]; }
+
+sub do_cmd_e{ '&#92;' . $_[0]; }
+
+$DEVELOPER_ADDRESS = '';
+$SHORT_VERSION = '';
+$RELEASE_INFO = '';
+$PACKAGE_VERSION = '';
+
+sub do_cmd_version{ $PACKAGE_VERSION . $_[0]; }
+sub do_cmd_shortversion{ $SHORT_VERSION . $_[0]; }
+sub do_cmd_release{
+    local($_) = @_;
+    $PACKAGE_VERSION = next_argument();
+    return $_;
+}
+
+sub do_cmd_setreleaseinfo{
+    local($_) = @_;
+    $RELEASE_INFO = next_argument();
+    return $_;
+}
+
+sub do_cmd_setshortversion{
+    local($_) = @_;
+    $SHORT_VERSION = next_argument();
+    return $_;
+}
+
+sub do_cmd_authoraddress{
+    local($_) = @_;
+    $DEVELOPER_ADDRESS = next_argument();
+    return $_;
+}
+
+sub do_cmd_hackscore{
+    local($_) = @_;
+    next_argument();
+    return '_' . $_;
+}
+
+# Helper used in many places that arbitrary code-like text appears:
+
+sub codetext($){
+    my $text = "$_[0]";
+    # Make sure that "---" is not converted to "--" later when
+    # LaTeX2HTML tries converting em-dashes based on the conventional
+    # TeX font ligatures:
+    $text =~ s/--/-\&#45;/go;
+    return $text;
+}
+
+sub use_wrappers($$$){
+    local($_,$before,$after) = @_;
+    my $stuff = next_argument();
+    return $before . $stuff . $after . $_;
+}
+
+sub use_code_wrappers($$$){
+    local($_,$before,$after) = @_;
+    my $stuff = codetext(next_argument());
+    return $before . $stuff . $after . $_;
+}
+
+$IN_DESC_HANDLER = 0;
+sub do_cmd_optional{
+    if ($IN_DESC_HANDLER) {
+        return use_wrappers($_[0], "</var><big>\[</big><var>",
+                            "</var><big>\]</big><var>");
+    }
+    else {
+        return use_wrappers($_[0], "<big>\[</big>", "<big>\]</big>");
+    }
+}
+
+# Logical formatting (some based on texinfo), needs to be converted to
+# minimalist HTML.  The "minimalist" is primarily to reduce the size of
+# output files for users that read them over the network rather than
+# from local repositories.
+
+sub do_cmd_pytype{ return $_[0]; }
+sub do_cmd_makevar{
+    return use_wrappers($_[0], '<span class="makevar">', '</span>'); }
+sub do_cmd_code{
+    return use_code_wrappers($_[0], '<code>', '</code>'); }
+sub do_cmd_module{
+    return use_wrappers($_[0], '<tt class="module">', '</tt>'); }
+sub do_cmd_keyword{
+    return use_wrappers($_[0], '<tt class="keyword">', '</tt>'); }
+sub do_cmd_exception{
+    return use_wrappers($_[0], '<tt class="exception">', '</tt>'); }
+sub do_cmd_class{
+    return use_wrappers($_[0], '<tt class="class">', '</tt>'); }
+sub do_cmd_function{
+    return use_wrappers($_[0], '<tt class="function">', '</tt>'); }
+sub do_cmd_constant{
+    return use_wrappers($_[0], '<tt class="constant">', '</tt>'); }
+sub do_cmd_member{
+    return use_wrappers($_[0], '<tt class="member">', '</tt>'); }
+sub do_cmd_method{
+    return use_wrappers($_[0], '<tt class="method">', '</tt>'); }
+sub do_cmd_cfunction{
+    return use_wrappers($_[0], '<tt class="cfunction">', '</tt>'); }
+sub do_cmd_cdata{
+    return use_wrappers($_[0], '<tt class="cdata">', '</tt>'); }
+sub do_cmd_ctype{
+    return use_wrappers($_[0], '<tt class="ctype">', '</tt>'); }
+sub do_cmd_regexp{
+    return use_code_wrappers($_[0], '<tt class="regexp">', '</tt>'); }
+sub do_cmd_character{
+    return use_code_wrappers($_[0], '"<tt class="character">', '</tt>"'); }
+sub do_cmd_program{
+    return use_wrappers($_[0], '<b class="program">', '</b>'); }
+sub do_cmd_programopt{
+    return use_wrappers($_[0], '<b class="programopt">', '</b>'); }
+sub do_cmd_longprogramopt{
+    # note that the --- will be later converted to -- by LaTeX2HTML
+    return use_wrappers($_[0], '<b class="programopt">---', '</b>'); }
+sub do_cmd_email{
+    return use_wrappers($_[0], '<span class="email">', '</span>'); }
+sub do_cmd_mailheader{
+    return use_wrappers($_[0], '<span class="mailheader">', ':</span>'); }
+sub do_cmd_mimetype{
+    return use_wrappers($_[0], '<span class="mimetype">', '</span>'); }
+sub do_cmd_var{
+    return use_wrappers($_[0], "<var>", "</var>"); }
+sub do_cmd_dfn{
+    return use_wrappers($_[0], '<i class="dfn">', '</i>'); }
+sub do_cmd_emph{
+    return use_wrappers($_[0], '<em>', '</em>'); }
+sub do_cmd_file{
+    return use_wrappers($_[0], '<span class="file">', '</span>'); }
+sub do_cmd_filenq{
+    return do_cmd_file($_[0]); }
+sub do_cmd_samp{
+    return use_code_wrappers($_[0], '"<tt class="samp">', '</tt>"'); }
+sub do_cmd_kbd{
+    return use_wrappers($_[0], '<kbd>', '</kbd>'); }
+sub do_cmd_strong{
+    return use_wrappers($_[0], '<strong>', '</strong>'); }
+sub do_cmd_textbf{
+    return use_wrappers($_[0], '<b>', '</b>'); }
+sub do_cmd_textit{
+    return use_wrappers($_[0], '<i>', '</i>'); }
+# This can be changed/overridden for translations:
+%NoticeNames = ('note' => 'Note:',
+                'warning' => 'Warning:',
+                );
+
+sub do_cmd_note{
+    my $label = $NoticeNames{'note'};
+    return use_wrappers(
+        $_[0],
+        "<span class=\"note\"><b class=\"label\">$label</b>\n",
+        '</span>'); }
+sub do_cmd_warning{
+    my $label = $NoticeNames{'warning'};
+    return use_wrappers(
+        $_[0],
+        "<span class=\"warning\"><b class=\"label\">$label</b>\n",
+        '</span>'); }
+
+sub do_env_notice{
+    local($_) = @_;
+    my $notice = next_optional_argument();
+    if (!$notice) {
+        $notice = 'note';
+    }
+    my $label = $NoticeNames{$notice};
+    return ("<div class=\"$notice\"><b class=\"label\">$label</b>\n"
+            . $_
+            . '</div>');
+}
+
+sub do_cmd_moreargs{
+    return '...' . $_[0]; }
+sub do_cmd_unspecified{
+    return '...' . $_[0]; }
+
+
+sub do_cmd_refmodule{
+    # Insert the right magic to jump to the module definition.
+    local($_) = @_;
+    my $key = next_optional_argument();
+    my $module = next_argument();
+    $key = $module
+        unless $key;
+    return "<tt class=\"module\"><a href=\"module-$key.html\">$module</a></tt>"
+      . $_;
+}
+
+sub do_cmd_newsgroup{
+    local($_) = @_;
+    my $newsgroup = next_argument();
+    my $icon = get_link_icon("news:$newsgroup");
+    my $stuff = ("<a class=\"newsgroup\" href=\"news:$newsgroup\">"
+                 . "$newsgroup$icon</a>");
+    return $stuff . $_;
+}
+
+sub do_cmd_envvar{
+    local($_) = @_;
+    my $envvar = next_argument();
+    my($name, $aname, $ahref) = new_link_info();
+    # The <tt> here is really to keep buildindex.py from making
+    # the variable name case-insensitive.
+    add_index_entry("environment variables!$envvar@<tt>$envvar</tt>",
+                    $ahref);
+    add_index_entry("$envvar (environment variable)", $ahref);
+    $aname =~ s/<a/<a class="envvar"/;
+    return "$aname$envvar</a>" . $_;
+}
+
+sub do_cmd_url{
+    # use the URL as both text and hyperlink
+    local($_) = @_;
+    my $url = next_argument();
+    my $icon = get_link_icon($url);
+    $url =~ s/~/&#126;/g;
+    return "<a class=\"url\" href=\"$url\">$url$icon</a>" . $_;
+}
+
+sub do_cmd_manpage{
+    # two parameters:  \manpage{name}{section}
+    local($_) = @_;
+    my $page = next_argument();
+    my $section = next_argument();
+    return "<span class=\"manpage\"><i>$page</i>($section)</span>" . $_;
+}
+
+$PEP_FORMAT = "http://www.python.org/peps/pep-%04d.html";
+#$RFC_FORMAT = "http://www.ietf.org/rfc/rfc%04d.txt";
+$RFC_FORMAT = "http://www.faqs.org/rfcs/rfc%d.html";
+
+sub get_rfc_url($$){
+    my($rfcnum, $format) = @_;
+    return sprintf($format, $rfcnum);
+}
+
+sub do_cmd_pep{
+    local($_) = @_;
+    my $rfcnumber = next_argument();
+    my $id = "rfcref-" . ++$global{'max_id'};
+    my $href = get_rfc_url($rfcnumber, $PEP_FORMAT);
+    my $icon = get_link_icon($href);
+    # Save the reference
+    my $nstr = gen_index_id("Python Enhancement Proposals!PEP $rfcnumber", '');
+    $index{$nstr} .= make_half_href("$CURRENT_FILE#$id");
+    return ("<a class=\"rfc\" id='$id' xml:id='$id'\n"
+            . "href=\"$href\">PEP $rfcnumber$icon</a>" . $_);
+}
+
+sub do_cmd_rfc{
+    local($_) = @_;
+    my $rfcnumber = next_argument();
+    my $id = "rfcref-" . ++$global{'max_id'};
+    my $href = get_rfc_url($rfcnumber, $RFC_FORMAT);
+    my $icon = get_link_icon($href);
+    # Save the reference
+    my $nstr = gen_index_id("RFC!RFC $rfcnumber", '');
+    $index{$nstr} .= make_half_href("$CURRENT_FILE#$id");
+    return ("<a class=\"rfc\" id='$id' xml:id='$id'\nhref=\"$href\">"
+            . "RFC $rfcnumber$icon</a>" . $_);
+}
+
+sub do_cmd_ulink{
+    local($_) = @_;
+    my $text = next_argument();
+    my $url = next_argument();
+    return "<a class=\"ulink\" href=\"$url\"\n  >$text</a>" . $_;
+}
+
+sub do_cmd_citetitle{
+    local($_) = @_;
+    my $url = next_optional_argument();
+    my $title = next_argument();
+    my $icon = get_link_icon($url);
+    my $repl = '';
+    if ($url) {
+        my $titletext = strip_html_markup("$title");
+        $repl = ("<em class=\"citetitle\"><a\n"
+                 . " href=\"$url\"\n"
+                 . " title=\"$titletext\"\n"
+                 . " >$title$icon</a></em>");
+    }
+    else {
+        $repl = "<em class=\"citetitle\"\n >$title</em>";
+    }
+    return $repl . $_;
+}
+
+sub do_cmd_deprecated{
+    # two parameters:  \deprecated{version}{whattodo}
+    local($_) = @_;
+    my $release = next_argument();
+    my $reason = next_argument();
+    return ('<div class="versionnote">'
+            . "<b>Deprecated since release $release.</b>"
+            . "\n$reason</div><p></p>"
+            . $_);
+}
+
+sub versionnote($$){
+    # one or two parameters:  \versionnote[explanation]{version}
+    my $type = $_[0];
+    local $_ = $_[1];
+    my $explanation = next_optional_argument();
+    my $release = next_argument();
+    my $text = "$type in version $release.";
+    if ($explanation) {
+        $text = "$type in version $release:\n$explanation.";
+    }
+    return "\n<span class=\"versionnote\">$text</span>\n" . $_;
+}
+
+sub do_cmd_versionadded{
+    return versionnote('New', $_[0]);
+}
+
+sub do_cmd_versionchanged{
+    return versionnote('Changed', $_[0]);
+}
+
+#
+# These function handle platform dependency tracking.
+#
+sub do_cmd_platform{
+    local($_) = @_;
+    my $platform = next_argument();
+    $ModulePlatforms{"<tt class=\"module\">$THIS_MODULE</tt>"} = $platform;
+    $platform = "Macintosh"
+      if $platform eq 'Mac';
+    return "\n<p class=\"availability\">Availability: <span"
+      . "\n class=\"platform\">$platform</span>.</p>\n" . $_;
+}
+
+$IGNORE_PLATFORM_ANNOTATION = '';
+sub do_cmd_ignorePlatformAnnotation{
+    local($_) = @_;
+    $IGNORE_PLATFORM_ANNOTATION = next_argument();
+    return $_;
+}
+
+
+# index commands
+
+$INDEX_SUBITEM = "";
+
+sub get_indexsubitem(){
+    return $INDEX_SUBITEM ? " $INDEX_SUBITEM" : '';
+}
+
+sub do_cmd_setindexsubitem{
+    local($_) = @_;
+    $INDEX_SUBITEM = next_argument();
+    return $_;
+}
+
+sub do_cmd_withsubitem{
+    # We can't really do the right thing, because LaTeX2HTML doesn't
+    # do things in the right order, but we need to at least strip this stuff
+    # out, and leave anything that the second argument expanded out to.
+    #
+    local($_) = @_;
+    my $oldsubitem = $INDEX_SUBITEM;
+    $INDEX_SUBITEM = next_argument();
+    my $stuff = next_argument();
+    my $br_id = ++$globals{'max_id'};
+    my $marker = "$O$br_id$C";
+    $stuff =~ s/^\s+//;
+    return
+      $stuff
+      . "\\setindexsubitem$marker$oldsubitem$marker"
+      . $_;
+}
+
+# This is the prologue macro which is required to start writing the
+# mod\jobname.idx file; we can just ignore it.  (Defining this suppresses
+# a warning that \makemodindex is unknown.)
+#
+sub do_cmd_makemodindex{ return $_[0]; }
+
+# We're in the document subdirectory when this happens!
+#
+open(IDXFILE, '>index.dat') || die "\n$!\n";
+open(INTLABELS, '>intlabels.pl') || die "\n$!\n";
+print INTLABELS "%internal_labels = ();\n";
+print INTLABELS "1;             # hack in case there are no entries\n\n";
+
+# Using \0 for this is bad because we can't use common tools to work with the
+# resulting files.  Things like grep can be useful with this stuff!
+#
+$IDXFILE_FIELD_SEP = "\1";
+
+sub write_idxfile($$){
+    my($ahref, $str) = @_;
+    print IDXFILE $ahref, $IDXFILE_FIELD_SEP, $str, "\n";
+}
+
+
+sub gen_link($$){
+    my($node, $target) = @_;
+    print INTLABELS "\$internal_labels{\"$target\"} = \"/$node\";\n";
+    return "<a href=\"$node#$target\">";
+}
+
+sub add_index_entry($$){
+    # add an entry to the index structures; ignore the return value
+    my($str, $ahref) = @_;
+    $str = gen_index_id($str, '');
+    $index{$str} .= $ahref;
+    write_idxfile($ahref, $str);
+}
+
+sub new_link_name_info(){
+    my $name = "l2h-" . ++$globals{'max_id'};
+    my $ahref = gen_link($CURRENT_FILE, $name);
+    return ($name, $ahref);
+}
+
+sub new_link_info(){
+    my($name, $ahref) = new_link_name_info();
+    my $aname = "<a id='$name' xml:id='$name'>";
+    return ($name, $aname, $ahref);
+}
+
+$IndexMacroPattern = '';
+sub define_indexing_macro(@){
+    my $count = @_;
+    my $i = 0;
+    for (; $i < $count; ++$i) {
+        my $name = $_[$i];
+        my $cmd = "idx_cmd_$name";
+        die "\nNo function $cmd() defined!\n"
+          if (!defined &$cmd);
+        eval ("sub do_cmd_$name { return process_index_macros("
+              . "\$_[0], '$name'); }");
+        if (length($IndexMacroPattern) == 0) {
+            $IndexMacroPattern = "$name";
+        }
+        else {
+            $IndexMacroPattern .= "|$name";
+        }
+    }
+}
+
+$DEBUG_INDEXING = 0;
+sub process_index_macros($$){
+    local($_) = @_;
+    my $cmdname = $_[1];        # This is what triggered us in the first place;
+                                # we know it's real, so just process it.
+    my($name, $aname, $ahref) = new_link_info();
+    my $cmd = "idx_cmd_$cmdname";
+    print "\nIndexing: \\$cmdname"
+      if $DEBUG_INDEXING;
+    &$cmd($ahref);              # modifies $_ and adds index entries
+    while (/^[\s\n]*\\($IndexMacroPattern)</) {
+        $cmdname = "$1";
+        print " \\$cmdname"
+          if $DEBUG_INDEXING;
+        $cmd = "idx_cmd_$cmdname";
+        if (!defined &$cmd) {
+            last;
+        }
+        else {
+            s/^[\s\n]*\\$cmdname//;
+            &$cmd($ahref);
+        }
+    }
+# XXX I don't remember why I added this to begin with.
+#     if (/^[ \t\r\n]/) {
+#         $_ = substr($_, 1);
+#     }
+    return "$aname$anchor_invisible_mark</a>" . $_;
+}
+
+define_indexing_macro('index');
+sub idx_cmd_index($){
+    my $str = next_argument();
+    add_index_entry("$str", $_[0]);
+}
+
+define_indexing_macro('kwindex');
+sub idx_cmd_kwindex($){
+    my $str = next_argument();
+    add_index_entry("<tt>$str</tt>!keyword", $_[0]);
+    add_index_entry("keyword!<tt>$str</tt>", $_[0]);
+}
+
+define_indexing_macro('indexii');
+sub idx_cmd_indexii($){
+    my $str1 = next_argument();
+    my $str2 = next_argument();
+    add_index_entry("$str1!$str2", $_[0]);
+    add_index_entry("$str2!$str1", $_[0]);
+}
+
+define_indexing_macro('indexiii');
+sub idx_cmd_indexiii($){
+    my $str1 = next_argument();
+    my $str2 = next_argument();
+    my $str3 = next_argument();
+    add_index_entry("$str1!$str2 $str3", $_[0]);
+    add_index_entry("$str2!$str3, $str1", $_[0]);
+    add_index_entry("$str3!$str1 $str2", $_[0]);
+}
+
+define_indexing_macro('indexiv');
+sub idx_cmd_indexiv($){
+    my $str1 = next_argument();
+    my $str2 = next_argument();
+    my $str3 = next_argument();
+    my $str4 = next_argument();
+    add_index_entry("$str1!$str2 $str3 $str4", $_[0]);
+    add_index_entry("$str2!$str3 $str4, $str1", $_[0]);
+    add_index_entry("$str3!$str4, $str1 $str2", $_[0]);
+    add_index_entry("$str4!$str1 $str2 $str3", $_[0]);
+}
+
+define_indexing_macro('ttindex');
+sub idx_cmd_ttindex($){
+    my $str = codetext(next_argument());
+    my $entry = $str . get_indexsubitem();
+    add_index_entry($entry, $_[0]);
+}
+
+sub my_typed_index_helper($$){
+    my($word, $ahref) = @_;
+    my $str = next_argument();
+    add_index_entry("$str $word", $ahref);
+    add_index_entry("$word!$str", $ahref);
+}
+
+define_indexing_macro('stindex', 'opindex', 'exindex', 'obindex');
+sub idx_cmd_stindex($){ my_typed_index_helper('statement', $_[0]); }
+sub idx_cmd_opindex($){ my_typed_index_helper('operator', $_[0]); }
+sub idx_cmd_exindex($){ my_typed_index_helper('exception', $_[0]); }
+sub idx_cmd_obindex($){ my_typed_index_helper('object', $_[0]); }
+
+define_indexing_macro('bifuncindex');
+sub idx_cmd_bifuncindex($){
+    my $str = next_argument();
+    add_index_entry("<tt class=\"function\">$str()</tt> (built-in function)",
+                    $_[0]);
+}
+
+
+sub make_mod_index_entry($$){
+    my($str, $define) = @_;
+    my($name, $aname, $ahref) = new_link_info();
+    # equivalent of add_index_entry() using $define instead of ''
+    $ahref =~ s/\#[-_a-zA-Z0-9]*\"/\"/
+      if ($define eq 'DEF');
+    $str = gen_index_id($str, $define);
+    $index{$str} .= $ahref;
+    write_idxfile($ahref, $str);
+
+    if ($define eq 'DEF') {
+        # add to the module index
+        $str =~ /(<tt.*<\/tt>)/;
+        my $nstr = $1;
+        $Modules{$nstr} .= $ahref;
+    }
+    return "$aname$anchor_invisible_mark2</a>";
+}
+
+
+$THIS_MODULE = '';
+$THIS_CLASS = '';
+
+sub define_module($$){
+    my($word, $name) = @_;
+    my $section_tag = join('', @curr_sec_id);
+    if ($word ne "built-in" && $word ne "extension"
+        && $word ne "standard" && $word ne "") {
+        write_warnings("Bad module type '$word'"
+                       . " for \\declaremodule (module $name)");
+        $word = "";
+    }
+    $word = "$word " if $word;
+    $THIS_MODULE = "$name";
+    $INDEX_SUBITEM = "(in module $name)";
+    print "[$name]";
+    return make_mod_index_entry(
+        "<tt class=\"module\">$name</tt> (${word}module)", 'DEF');
+}
+
+sub my_module_index_helper($$){
+    local($word, $_) = @_;
+    my $name = next_argument();
+    return define_module($word, $name) . $_;
+}
+
+sub do_cmd_modindex{ return my_module_index_helper('', $_[0]); }
+sub do_cmd_bimodindex{ return my_module_index_helper('built-in', $_[0]); }
+sub do_cmd_exmodindex{ return my_module_index_helper('extension', $_[0]); }
+sub do_cmd_stmodindex{ return my_module_index_helper('standard', $_[0]); }
+#     local($_) = @_;
+#     my $name = next_argument();
+#     return define_module('standard', $name) . $_;
+# }
+
+sub ref_module_index_helper($$){
+    my($word, $ahref) = @_;
+    my $str = next_argument();
+    $word = "$word " if $word;
+    $str = "<tt class=\"module\">$str</tt> (${word}module)";
+    # can't use add_index_entry() since the 2nd arg to gen_index_id() is used;
+    # just inline it all here
+    $str = gen_index_id($str, 'REF');
+    $index{$str} .= $ahref;
+    write_idxfile($ahref, $str);
+}
+
+# these should be adjusted a bit....
+define_indexing_macro('refmodindex', 'refbimodindex',
+                      'refexmodindex', 'refstmodindex');
+sub idx_cmd_refmodindex($){
+    return ref_module_index_helper('', $_[0]); }
+sub idx_cmd_refbimodindex($){
+    return ref_module_index_helper('built-in', $_[0]); }
+sub idx_cmd_refexmodindex($){
+    return ref_module_index_helper('extension', $_[0]);}
+sub idx_cmd_refstmodindex($){
+    return ref_module_index_helper('standard', $_[0]); }
+
+sub do_cmd_nodename{ return do_cmd_label($_[0]); }
+
+sub init_myformat(){
+    # This depends on the override of text_cleanup() in l2hinit.perl;
+    # if that function cleans out empty tags, the first three of these
+    # variables must be set to comments.
+    #
+    # Thanks to Dave Kuhlman for figuring why some named anchors were
+    # being lost.
+    $anchor_invisible_mark = '';
+    $anchor_invisible_mark2 = '';
+    $anchor_mark = '';
+    $icons{'anchor_mark'} = '';
+}
+init_myformat();
+
+# Create an index entry, but include the string in the target anchor
+# instead of the dummy filler.
+#
+sub make_str_index_entry($){
+    my $str = $_[0];
+    my($name, $ahref) = new_link_name_info();
+    add_index_entry($str, $ahref);
+    if ($str =~ /^<[a-z]+\b/) {
+        my $s = "$str";
+        $s =~ s/^<([a-z]+)\b/<$1 id='$name' xml:id='$name'/;
+        return $s;
+    }
+    else {
+        return "<a id='$name' xml:id='$name'>$str</a>";
+    }
+}
+
+
+%TokenToTargetMapping = ();     # language:token -> link target
+%DefinedGrammars = ();          # language -> full grammar text
+%BackpatchGrammarFiles = ();    # file -> 1 (hash of files to fixup)
+
+sub do_cmd_token{
+    local($_) = @_;
+    my $token = next_argument();
+    my $target = $TokenToTargetMapping{"$CURRENT_GRAMMAR:$token"};
+    if ($token eq $CURRENT_TOKEN || $CURRENT_GRAMMAR eq '*') {
+        # recursive definition or display-only productionlist
+        return "$token";
+    }
+    if ($target eq '') {
+        $target = "<pyGrammarToken><$CURRENT_GRAMMAR><$token>";
+        if (! $BackpatchGrammarFiles{"$CURRENT_FILE"}) {
+            print "Adding '$CURRENT_FILE' to back-patch list.\n";
+        }
+        $BackpatchGrammarFiles{"$CURRENT_FILE"} = 1;
+    }
+    return "<a class='grammartoken' href=\"$target\">$token</a>" . $_;
+}
+
+sub do_cmd_grammartoken{
+    return do_cmd_token(@_);
+}
+
+sub do_env_productionlist{
+    local($_) = @_;
+    my $lang = next_optional_argument();
+    my $filename = "grammar-$lang.txt";
+    if ($lang eq '') {
+        $filename = 'grammar.txt';
+    }
+    local($CURRENT_GRAMMAR) = $lang;
+    $DefinedGrammars{$lang} .= $_;
+    return ("<dl><dd class=\"grammar\">\n"
+            . "<div class=\"productions\">\n"
+            . "<table>\n"
+            . translate_commands(translate_environments($_))
+            . "</table>\n"
+            . "</div>\n"
+            . (($lang eq '*')
+               ? ''
+               : ("<a class=\"grammar-footer\"\n"
+                  . "  href=\"$filename\" type=\"text/plain\"\n"
+                  . "  >Download entire grammar as text.</a>\n"))
+            . "</dd></dl>");
+}
+
+sub do_cmd_production{
+    local($_) = @_;
+    my $token = next_argument();
+    my $defn = next_argument();
+    my $lang = $CURRENT_GRAMMAR;
+    local($CURRENT_TOKEN) = $token;
+    if ($lang eq '*') {
+        return ("<tr>\n"
+                . "    <td>$token</td>\n"
+                . "    <td>::=</td>\n"
+                . "    <td>"
+                . translate_commands($defn)
+                . "</td></tr>"
+                . $_);
+    }
+    my $target;
+    if ($lang eq '') {
+        $target = "$CURRENT_FILE\#tok-$token";
+    }
+    else {
+        $target = "$CURRENT_FILE\#tok-$lang-$token";
+    }
+    $TokenToTargetMapping{"$CURRENT_GRAMMAR:$token"} = $target;
+    return ("<tr>\n"
+            . "    <td><a id='tok-$token' xml:id='tok-$token'>"
+            . "$token</a></td>\n"
+            . "    <td>::=</td>\n"
+            . "    <td>"
+            . translate_commands($defn)
+            . "</td></tr>"
+            . $_);
+}
+
+sub do_cmd_productioncont{
+    local($_) = @_;
+    my $defn = next_argument();
+    $defn =~ s/^( +)/'&nbsp;' x length $1/e;
+    return ("<tr>\n"
+            . "    <td></td>\n"
+            . "    <td></td>\n"
+            . "    <td><code>"
+            . translate_commands($defn)
+            . "</code></td></tr>"
+            . $_);
+}
+
+sub process_grammar_files(){
+    my $lang;
+    my $filename;
+    local($_);
+    print "process_grammar_files()\n";
+    foreach $lang (keys %DefinedGrammars) {
+        $filename = "grammar-$lang.txt";
+        if ($lang eq '*') {
+            next;
+        }
+        if ($lang eq '') {
+            $filename = 'grammar.txt';
+        }
+        open(GRAMMAR, ">$filename") || die "\n$!\n";
+        print GRAMMAR strip_grammar_markup($DefinedGrammars{$lang});
+        close(GRAMMAR);
+        print "Wrote grammar file $filename\n";
+    }
+    my $PATTERN = '<pyGrammarToken><([^>]*)><([^>]*)>';
+    foreach $filename (keys %BackpatchGrammarFiles) {
+        print "\nBack-patching grammar links in $filename\n";
+        my $buffer;
+        open(GRAMMAR, "<$filename") || die "\n$!\n";
+        # read all of the file into the buffer
+        sysread(GRAMMAR, $buffer, 1024*1024);
+        close(GRAMMAR);
+        while ($buffer =~ /$PATTERN/) {
+            my($lang, $token) = ($1, $2);
+            my $target = $TokenToTargetMapping{"$lang:$token"};
+            my $source = "<pyGrammarToken><$lang><$token>";
+            $buffer =~ s/$source/$target/g;
+        }
+        open(GRAMMAR, ">$filename") || die "\n$!\n";
+        print GRAMMAR $buffer;
+        close(GRAMMAR);
+    }
+}
+
+sub strip_grammar_markup($){
+    local($_) = @_;
+    s/\\productioncont/              /g;
+    s/\\production(<<\d+>>)(.+)\1/\n$2 ::= /g;
+    s/\\token(<<\d+>>)(.+)\1/$2/g;
+    s/\\e([^a-zA-Z])/\\$1/g;
+    s/<<\d+>>//g;
+    s/;SPMgt;/>/g;
+    s/;SPMlt;/</g;
+    s/;SPMquot;/\"/g;
+    return $_;
+}
+
+
+$REFCOUNTS_LOADED = 0;
+
+sub load_refcounts(){
+    $REFCOUNTS_LOADED = 1;
+
+    my($myname, $mydir, $myext) = fileparse(__FILE__, '\..*');
+    chop $mydir;                        # remove trailing '/'
+    ($myname, $mydir, $myext) = fileparse($mydir, '\..*');
+    chop $mydir;                        # remove trailing '/'
+    $mydir = getcwd() . "$dd$mydir"
+      unless $mydir =~ s|^/|/|;
+    local $_;
+    my $filename = "$mydir${dd}api${dd}refcounts.dat";
+    open(REFCOUNT_FILE, "<$filename") || die "\n$!\n";
+    print "[loading API refcount data]";
+    while (<REFCOUNT_FILE>) {
+        if (/([a-zA-Z0-9_]+):PyObject\*:([a-zA-Z0-9_]*):(0|[-+]1|null):(.*)$/) {
+            my($func, $param, $count, $comment) = ($1, $2, $3, $4);
+            #print "\n$func($param) --> $count";
+            $REFCOUNTS{"$func:$param"} = $count;
+        }
+    }
+}
+
+sub get_refcount($$){
+    my($func, $param) = @_;
+    load_refcounts()
+        unless $REFCOUNTS_LOADED;
+    return $REFCOUNTS{"$func:$param"};
+}
+
+
+$TLSTART = '<span class="typelabel">';
+$TLEND   = '</span>&nbsp;';
+
+sub cfuncline_helper($$$){
+    my($type, $name, $args) = @_;
+    my $idx = make_str_index_entry(
+        "<tt class=\"cfunction\">$name()</tt>" . get_indexsubitem());
+    $idx =~ s/ \(.*\)//;
+    $idx =~ s/\(\)//;           # ???? - why both of these?
+    $args =~ s/(\s|\*)([a-z_][a-z_0-9]*),/$1<var>$2<\/var>,/g;
+    $args =~ s/(\s|\*)([a-z_][a-z_0-9]*)$/$1<var>$2<\/var>/s;
+    return ('<table cellpadding="0" cellspacing="0"><tr valign="baseline">'
+            . "<td><nobr>$type\&nbsp;<b>$idx</b>(</nobr></td>"
+            . "<td>$args)</td>"
+            . '</tr></table>');
+}
+sub do_cmd_cfuncline{
+    local($_) = @_;
+    my $type = next_argument();
+    my $name = next_argument();
+    my $args = next_argument();
+    my $siginfo = cfuncline_helper($type, $name, $args);
+    return "<dt>$siginfo\n<dd>" . $_;
+}
+sub do_env_cfuncdesc{
+    local($_) = @_;
+    my $type = next_argument();
+    my $name = next_argument();
+    my $args = next_argument();
+    my $siginfo = cfuncline_helper($type, $name, $args);
+    my $result_rc = get_refcount($name, '');
+    my $rcinfo = '';
+    if ($result_rc eq '+1') {
+        $rcinfo = 'New reference';
+    }
+    elsif ($result_rc eq '0') {
+        $rcinfo = 'Borrowed reference';
+    }
+    elsif ($result_rc eq 'null') {
+        $rcinfo = 'Always <tt class="constant">NULL</tt>';
+    }
+    if ($rcinfo ne '') {
+        $rcinfo = (  "\n<div class=\"refcount-info\">"
+                   . "\n  <span class=\"label\">Return value:</span>"
+                   . "\n  <span class=\"value\">$rcinfo.</span>"
+                   . "\n</div>");
+    }
+    return "<dl><dt>$siginfo</dt>\n<dd>"
+           . $rcinfo
+           . $_
+           . '</dd></dl>';
+}
+
+sub do_cmd_cmemberline{
+    local($_) = @_;
+    my $container = next_argument();
+    my $type = next_argument();
+    my $name = next_argument();
+    my $idx = make_str_index_entry("<tt class=\"cmember\">$name</tt>"
+                                   . " ($container member)");
+    $idx =~ s/ \(.*\)//;
+    return "<dt>$type <b>$idx</b></dt>\n<dd>"
+           . $_;
+}
+sub do_env_cmemberdesc{
+    local($_) = @_;
+    my $container = next_argument();
+    my $type = next_argument();
+    my $name = next_argument();
+    my $idx = make_str_index_entry("<tt class=\"cmember\">$name</tt>"
+                                   . " ($container member)");
+    $idx =~ s/ \(.*\)//;
+    return "<dl><dt>$type <b>$idx</b></dt>\n<dd>"
+           . $_
+           . '</dl>';
+}
+
+sub do_env_csimplemacrodesc{
+    local($_) = @_;
+    my $name = next_argument();
+    my $idx = make_str_index_entry("<tt class=\"macro\">$name</tt>");
+    return "<dl><dt><b>$idx</b></dt>\n<dd>"
+           . $_
+           . '</dl>'
+}
+
+sub do_env_ctypedesc{
+    local($_) = @_;
+    my $index_name = next_optional_argument();
+    my $type_name = next_argument();
+    $index_name = $type_name
+      unless $index_name;
+    my($name, $aname, $ahref) = new_link_info();
+    add_index_entry("<tt class=\"ctype\">$index_name</tt> (C type)", $ahref);
+    return "<dl><dt><b><tt class=\"ctype\">$aname$type_name</a></tt></b></dt>"
+           . "\n<dd>"
+           . $_
+           . '</dl>'
+}
+
+sub do_env_cvardesc{
+    local($_) = @_;
+    my $var_type = next_argument();
+    my $var_name = next_argument();
+    my $idx = make_str_index_entry("<tt class=\"cdata\">$var_name</tt>"
+                                   . get_indexsubitem());
+    $idx =~ s/ \(.*\)//;
+    return "<dl><dt>$var_type <b>$idx</b></dt>\n"
+           . '<dd>'
+           . $_
+           . '</dd></dl>';
+}
+
+sub convert_args($){
+    local($IN_DESC_HANDLER) = 1;
+    local($_) = @_;
+    return translate_commands($_);
+}
+
+sub funcline_helper($$$){
+    my($first, $idxitem, $arglist) = @_;
+    return (($first ? '<dl>' : '')
+            . '<dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">'
+            . "\n  <td><nobr><b>$idxitem</b>(</nobr></td>"
+            . "\n  <td><var>$arglist</var>)</td></tr></table></dt>\n<dd>");
+}
+
+sub do_env_funcdesc{
+    local($_) = @_;
+    my $function_name = next_argument();
+    my $arg_list = convert_args(next_argument());
+    my $idx = make_str_index_entry("<tt class=\"function\">$function_name()"
+                                   . '</tt>'
+                                   . get_indexsubitem());
+    $idx =~ s/ \(.*\)//;
+    $idx =~ s/\(\)<\/tt>/<\/tt>/;
+    return funcline_helper(1, $idx, $arg_list) . $_ . '</dl>';
+}
+
+sub do_env_funcdescni{
+    local($_) = @_;
+    my $function_name = next_argument();
+    my $arg_list = convert_args(next_argument());
+    my $prefix = "<tt class=\"function\">$function_name</tt>";
+    return funcline_helper(1, $prefix, $arg_list) . $_ . '</dl>';
+}
+
+sub do_cmd_funcline{
+    local($_) = @_;
+    my $function_name = next_argument();
+    my $arg_list = convert_args(next_argument());
+    my $prefix = "<tt class=\"function\">$function_name()</tt>";
+    my $idx = make_str_index_entry($prefix . get_indexsubitem());
+    $prefix =~ s/\(\)//;
+
+    return funcline_helper(0, $prefix, $arg_list) . $_;
+}
+
+sub do_cmd_funclineni{
+    local($_) = @_;
+    my $function_name = next_argument();
+    my $arg_list = convert_args(next_argument());
+    my $prefix = "<tt class=\"function\">$function_name</tt>";
+
+    return funcline_helper(0, $prefix, $arg_list) . $_;
+}
+
+# Change this flag to index the opcode entries.  I don't think it's very
+# useful to index them, since they're only presented to describe the dis
+# module.
+#
+$INDEX_OPCODES = 0;
+
+sub do_env_opcodedesc{
+    local($_) = @_;
+    my $opcode_name = next_argument();
+    my $arg_list = next_argument();
+    my $idx;
+    if ($INDEX_OPCODES) {
+        $idx = make_str_index_entry("<tt class=\"opcode\">$opcode_name</tt>"
+                                    . ' (byte code instruction)');
+        $idx =~ s/ \(byte code instruction\)//;
+    }
+    else {
+        $idx = "<tt class=\"opcode\">$opcode_name</tt>";
+    }
+    my $stuff = "<dl><dt><b>$idx</b>";
+    if ($arg_list) {
+        $stuff .= "&nbsp;&nbsp;&nbsp;&nbsp;<var>$arg_list</var>";
+    }
+    return $stuff . "</dt>\n<dd>" . $_ . '</dt></dl>';
+}
+
+sub do_env_datadesc{
+    local($_) = @_;
+    my $dataname = next_argument();
+    my $idx = make_str_index_entry("<tt>$dataname</tt>" . get_indexsubitem());
+    $idx =~ s/ \(.*\)//;
+    return "<dl><dt><b>$idx</b></dt>\n<dd>"
+           . $_
+           . '</dd></dl>';
+}
+
+sub do_env_datadescni{
+    local($_) = @_;
+    my $idx = next_argument();
+    if (! $STRING_INDEX_TT) {
+        $idx = "<tt>$idx</tt>";
+    }
+    return "<dl><dt><b>$idx</b></dt>\n<dd>" . $_ . '</dd></dl>';
+}
+
+sub do_cmd_dataline{
+    local($_) = @_;
+    my $data_name = next_argument();
+    my $idx = make_str_index_entry("<tt>$data_name</tt>" . get_indexsubitem());
+    $idx =~ s/ \(.*\)//;
+    return "<dt><b>$idx</b></dt><dd>" . $_;
+}
+
+sub do_cmd_datalineni{
+    local($_) = @_;
+    my $data_name = next_argument();
+    return "<dt><b><tt>$data_name</tt></b></dt><dd>" . $_;
+}
+
+sub do_env_excdesc{
+    local($_) = @_;
+    my $excname = next_argument();
+    my $idx = make_str_index_entry("<tt class=\"exception\">$excname</tt>");
+    return ("<dl><dt><b>${TLSTART}exception$TLEND$idx</b></dt>"
+            . "\n<dd>"
+            . $_
+            . '</dd></dl>');
+}
+
+sub do_env_fulllineitems{ return do_env_itemize(@_); }
+
+
+sub handle_classlike_descriptor($$){
+    local($_, $what) = @_;
+    $THIS_CLASS = next_argument();
+    my $arg_list = convert_args(next_argument());
+    $idx = make_str_index_entry(
+        "<tt class=\"$what\">$THIS_CLASS</tt> ($what in $THIS_MODULE)" );
+    $idx =~ s/ \(.*\)//;
+    my $prefix = "$TLSTART$what$TLEND$idx";
+    return funcline_helper(1, $prefix, $arg_list) . $_ . '</dl>';
+}
+
+sub do_env_classdesc{
+    return handle_classlike_descriptor($_[0], "class");
+}
+
+sub do_env_classdescstar{
+    local($_) = @_;
+    $THIS_CLASS = next_argument();
+    $idx = make_str_index_entry(
+        "<tt class=\"class\">$THIS_CLASS</tt> (class in $THIS_MODULE)");
+    $idx =~ s/ \(.*\)//;
+    my $prefix = "${TLSTART}class$TLEND$idx";
+    # Can't use funcline_helper() since there is no args list.
+    return "<dl><dt><b>$prefix</b>\n<dd>" . $_ . '</dl>';
+}
+
+sub do_env_excclassdesc{
+    return handle_classlike_descriptor($_[0], "exception");
+}
+
+
+sub do_env_methoddesc{
+    local($_) = @_;
+    my $class_name = next_optional_argument();
+    $class_name = $THIS_CLASS
+        unless $class_name;
+    my $method = next_argument();
+    my $arg_list = convert_args(next_argument());
+    my $extra = '';
+    if ($class_name) {
+        $extra = " ($class_name method)";
+    }
+    my $idx = make_str_index_entry(
+        "<tt class=\"method\">$method()</tt>$extra");
+    $idx =~ s/ \(.*\)//;
+    $idx =~ s/\(\)//;
+    return funcline_helper(1, $idx, $arg_list) . $_ . '</dl>';
+}
+
+
+sub do_cmd_methodline{
+    local($_) = @_;
+    my $class_name = next_optional_argument();
+    $class_name = $THIS_CLASS
+        unless $class_name;
+    my $method = next_argument();
+    my $arg_list = convert_args(next_argument());
+    my $extra = '';
+    if ($class_name) {
+        $extra = " ($class_name method)";
+    }
+    my $idx = make_str_index_entry(
+        "<tt class=\"method\">$method()</tt>$extra");
+    $idx =~ s/ \(.*\)//;
+    $idx =~ s/\(\)//;
+    return funcline_helper(0, $idx, $arg_list) . $_;
+}
+
+
+sub do_cmd_methodlineni{
+    local($_) = @_;
+    next_optional_argument();
+    my $method = next_argument();
+    my $arg_list = convert_args(next_argument());
+    return funcline_helper(0, $method, $arg_list) . $_;
+}
+
+sub do_env_methoddescni{
+    local($_) = @_;
+    next_optional_argument();
+    my $method = next_argument();
+    my $arg_list = convert_args(next_argument());
+    return funcline_helper(1, $method, $arg_list) . $_ . '</dl>';
+}
+
+
+sub do_env_memberdesc{
+    local($_) = @_;
+    my $class = next_optional_argument();
+    my $member = next_argument();
+    $class = $THIS_CLASS
+        unless $class;
+    my $extra = '';
+    $extra = " ($class attribute)"
+        if ($class ne '');
+    my $idx = make_str_index_entry("<tt class=\"member\">$member</tt>$extra");
+    $idx =~ s/ \(.*\)//;
+    $idx =~ s/\(\)//;
+    return "<dl><dt><b>$idx</b></dt>\n<dd>" . $_ . '</dl>';
+}
+
+
+sub do_cmd_memberline{
+    local($_) = @_;
+    my $class = next_optional_argument();
+    my $member = next_argument();
+    $class = $THIS_CLASS
+        unless $class;
+    my $extra = '';
+    $extra = " ($class attribute)"
+        if ($class ne '');
+    my $idx = make_str_index_entry("<tt class=\"member\">$member</tt>$extra");
+    $idx =~ s/ \(.*\)//;
+    $idx =~ s/\(\)//;
+    return "<dt><b>$idx</b></dt><dd>" . $_;
+}
+
+
+sub do_env_memberdescni{
+    local($_) = @_;
+    next_optional_argument();
+    my $member = next_argument();
+    return "<dl><dt><b><tt class=\"member\">$member</tt></b></dt>\n<dd>"
+           . $_
+           . '</dd></dl>';
+}
+
+
+sub do_cmd_memberlineni{
+    local($_) = @_;
+    next_optional_argument();
+    my $member = next_argument();
+    return "<dt><b><tt class=\"member\">$member</tt></b></dt>\n<dd>" . $_;
+}
+
+
+# For tables, we include a class on every cell to allow the CSS to set
+# the text-align property; this is because support for styling columns
+# via the <col> element appears nearly non-existant on even the latest
+# browsers (Mozilla 1.7 is stable at the time of this writing).
+# Hopefully this can be improved as browsers evolve.
+
+@col_aligns = ('<td>', '<td>', '<td>', '<td>', '<td>');
+
+%FontConversions = ('cdata' => 'tt class="cdata"',
+                    'character' => 'tt class="character"',
+                    'class' => 'tt class="class"',
+                    'command' => 'code',
+                    'constant' => 'tt class="constant"',
+                    'exception' => 'tt class="exception"',
+                    'file' => 'tt class="file"',
+                    'filenq' => 'tt class="file"',
+                    'kbd' => 'kbd',
+                    'member' => 'tt class="member"',
+                    'programopt' => 'b',
+                    'textrm' => '',
+                    );
+
+sub fix_font($){
+    # do a little magic on a font name to get the right behavior in the first
+    # column of the output table
+    my $font = $_[0];
+    if (defined $FontConversions{$font}) {
+        $font = $FontConversions{$font};
+    }
+    return $font;
+}
+
+sub figure_column_alignment($){
+    my $a = $_[0];
+    if (!defined $a) {
+        return '';
+    }
+    my $mark = substr($a, 0, 1);
+    my $r = '';
+    if ($mark eq 'c')
+      { $r = ' class="center"'; }
+    elsif ($mark eq 'r')
+      { $r = ' class="right" '; }
+    elsif ($mark eq 'l')
+      { $r = ' class="left"  '; }
+    elsif ($mark eq 'p')
+      { $r = ' class="left"  '; }
+    return $r;
+}
+
+sub setup_column_alignments($){
+    local($_) = @_;
+    my($s1, $s2, $s3, $s4, $s5) = split(/[|]/,$_);
+    my $a1 = figure_column_alignment($s1);
+    my $a2 = figure_column_alignment($s2);
+    my $a3 = figure_column_alignment($s3);
+    my $a4 = figure_column_alignment($s4);
+    my $a5 = figure_column_alignment($s5);
+    $col_aligns[0] = "<td$a1 valign=\"baseline\">";
+    $col_aligns[1] = "<td$a2>";
+    $col_aligns[2] = "<td$a3>";
+    $col_aligns[3] = "<td$a4>";
+    $col_aligns[4] = "<td$a5>";
+    # return the aligned header start tags
+    return ("<th$a1>", "<th$a2>", "<th$a3>", "<th$a4>", "<th$a5>");
+}
+
+sub get_table_col1_fonts(){
+    my $font = $globals{'lineifont'};
+    my($sfont, $efont) = ('', '');
+    if ($font) {
+        $sfont = "<$font>";
+        $efont = "</$font>";
+        $efont =~ s/ .*>/>/;
+    }
+    return ($sfont, $efont);
+}
+
+sub do_env_tableii{
+    local($_) = @_;
+    my $arg = next_argument();
+    my($th1, $th2, $th3, $th4, $th5) = setup_column_alignments($arg);
+    my $font = fix_font(next_argument());
+    my $h1 = next_argument();
+    my $h2 = next_argument();
+    s/[\s\n]+//;
+    $globals{'lineifont'} = $font;
+    my $a1 = $col_aligns[0];
+    my $a2 = $col_aligns[1];
+    s/\\lineii</\\lineii[$a1|$a2]</g;
+    return '<div class="center"><table class="realtable">'
+           . "\n  <thead>"
+           . "\n    <tr>"
+           . "\n      $th1$h1</th>"
+           . "\n      $th2$h2</th>"
+           . "\n      </tr>"
+           . "\n    </thead>"
+           . "\n  <tbody>"
+           . $_
+           . "\n    </tbody>"
+           . "\n</table></div>";
+}
+
+sub do_env_longtableii{
+    return do_env_tableii(@_);
+}
+
+sub do_cmd_lineii{
+    local($_) = @_;
+    my $aligns = next_optional_argument();
+    my $c1 = next_argument();
+    my $c2 = next_argument();
+    s/[\s\n]+//;
+    my($sfont, $efont) = get_table_col1_fonts();
+    my($c1align, $c2align) = split('\|', $aligns);
+    return "\n    <tr>$c1align$sfont$c1$efont</td>\n"
+           . "        $c2align$c2</td></tr>"
+           . $_;
+}
+
+sub do_env_tableiii{
+    local($_) = @_;
+    my $arg = next_argument();
+    my($th1, $th2, $th3, $th4, $th5) = setup_column_alignments($arg);
+    my $font = fix_font(next_argument());
+    my $h1 = next_argument();
+    my $h2 = next_argument();
+    my $h3 = next_argument();
+    s/[\s\n]+//;
+    $globals{'lineifont'} = $font;
+    my $a1 = $col_aligns[0];
+    my $a2 = $col_aligns[1];
+    my $a3 = $col_aligns[2];
+    s/\\lineiii</\\lineiii[$a1|$a2|$a3]</g;
+    return '<div class="center"><table class="realtable">'
+           . "\n  <thead>"
+           . "\n    <tr>"
+           . "\n      $th1$h1</th>"
+           . "\n      $th2$h2</th>"
+           . "\n      $th3$h3</th>"
+           . "\n      </tr>"
+           . "\n    </thead>"
+           . "\n  <tbody>"
+           . $_
+           . "\n    </tbody>"
+           . "\n</table></div>";
+}
+
+sub do_env_longtableiii{
+    return do_env_tableiii(@_);
+}
+
+sub do_cmd_lineiii{
+    local($_) = @_;
+    my $aligns = next_optional_argument();
+    my $c1 = next_argument();
+    my $c2 = next_argument();
+    my $c3 = next_argument();
+    s/[\s\n]+//;
+    my($sfont, $efont) = get_table_col1_fonts();
+    my($c1align, $c2align, $c3align) = split('\|', $aligns);
+    return "\n    <tr>$c1align$sfont$c1$efont</td>\n"
+           . "        $c2align$c2</td>\n"
+           . "        $c3align$c3</td></tr>"
+           . $_;
+}
+
+sub do_env_tableiv{
+    local($_) = @_;
+    my $arg = next_argument();
+    my($th1, $th2, $th3, $th4, $th5) = setup_column_alignments($arg);
+    my $font = fix_font(next_argument());
+    my $h1 = next_argument();
+    my $h2 = next_argument();
+    my $h3 = next_argument();
+    my $h4 = next_argument();
+    s/[\s\n]+//;
+    $globals{'lineifont'} = $font;
+    my $a1 = $col_aligns[0];
+    my $a2 = $col_aligns[1];
+    my $a3 = $col_aligns[2];
+    my $a4 = $col_aligns[3];
+    s/\\lineiv</\\lineiv[$a1|$a2|$a3|$a4]</g;
+    return '<div class="center"><table class="realtable">'
+           . "\n  <thead>"
+           . "\n    <tr>"
+           . "\n      $th1$h1</th>"
+           . "\n      $th2$h2</th>"
+           . "\n      $th3$h3</th>"
+           . "\n      $th4$h4</th>"
+           . "\n      </tr>"
+           . "\n    </thead>"
+           . "\n  <tbody>"
+           . $_
+           . "\n    </tbody>"
+           . "\n</table></div>";
+}
+
+sub do_env_longtableiv{
+    return do_env_tableiv(@_);
+}
+
+sub do_cmd_lineiv{
+    local($_) = @_;
+    my $aligns = next_optional_argument();
+    my $c1 = next_argument();
+    my $c2 = next_argument();
+    my $c3 = next_argument();
+    my $c4 = next_argument();
+    s/[\s\n]+//;
+    my($sfont, $efont) = get_table_col1_fonts();
+    my($c1align, $c2align, $c3align, $c4align) = split('\|', $aligns);
+    return "\n    <tr>$c1align$sfont$c1$efont</td>\n"
+           . "        $c2align$c2</td>\n"
+           . "        $c3align$c3</td>\n"
+           . "        $c4align$c4</td></tr>"
+           . $_;
+}
+
+sub do_env_tablev{
+    local($_) = @_;
+    my $arg = next_argument();
+    my($th1, $th2, $th3, $th4, $th5) = setup_column_alignments($arg);
+    my $font = fix_font(next_argument());
+    my $h1 = next_argument();
+    my $h2 = next_argument();
+    my $h3 = next_argument();
+    my $h4 = next_argument();
+    my $h5 = next_argument();
+    s/[\s\n]+//;
+    $globals{'lineifont'} = $font;
+    my $a1 = $col_aligns[0];
+    my $a2 = $col_aligns[1];
+    my $a3 = $col_aligns[2];
+    my $a4 = $col_aligns[3];
+    my $a5 = $col_aligns[4];
+    s/\\linev</\\linev[$a1|$a2|$a3|$a4|$a5]</g;
+    return '<div class="center"><table class="realtable">'
+           . "\n  <thead>"
+           . "\n    <tr>"
+           . "\n      $th1$h1</th>"
+           . "\n      $th2$h2</th>"
+           . "\n      $th3$h3</th>"
+           . "\n      $th4$h4</th>"
+           . "\n      $th5$h5</th>"
+           . "\n      </tr>"
+           . "\n    </thead>"
+           . "\n  <tbody>"
+           . $_
+           . "\n    </tbody>"
+           . "\n</table></div>";
+}
+
+sub do_env_longtablev{
+    return do_env_tablev(@_);
+}
+
+sub do_cmd_linev{
+    local($_) = @_;
+    my $aligns = next_optional_argument();
+    my $c1 = next_argument();
+    my $c2 = next_argument();
+    my $c3 = next_argument();
+    my $c4 = next_argument();
+    my $c5 = next_argument();
+    s/[\s\n]+//;
+    my($sfont, $efont) = get_table_col1_fonts();
+    my($c1align, $c2align, $c3align, $c4align, $c5align) = split('\|',$aligns);
+    return "\n    <tr>$c1align$sfont$c1$efont</td>\n"
+           . "        $c2align$c2</td>\n"
+           . "        $c3align$c3</td>\n"
+           . "        $c4align$c4</td>\n"
+           . "        $c5align$c5</td></tr>"
+           . $_;
+}
+
+
+# These can be used to control the title page appearance;
+# they need a little bit of documentation.
+#
+# If $TITLE_PAGE_GRAPHIC is set, it should be the name of a file in the
+# $ICONSERVER directory, or include path information (other than "./").  The
+# default image type will be assumed if an extension is not provided.
+#
+# If specified, the "title page" will contain two colums: one containing the
+# title/author/etc., and the other containing the graphic.  Use the other
+# four variables listed here to control specific details of the layout; all
+# are optional.
+#
+# $TITLE_PAGE_GRAPHIC = "my-company-logo";
+# $TITLE_PAGE_GRAPHIC_COLWIDTH = "30%";
+# $TITLE_PAGE_GRAPHIC_WIDTH = 150;
+# $TITLE_PAGE_GRAPHIC_HEIGHT = 150;
+# $TITLE_PAGE_GRAPHIC_ON_RIGHT = 0;
+
+sub make_my_titlepage(){
+    my $the_title = "";
+    if ($t_title) {
+        $the_title .= "\n<h1>$t_title</h1>";
+    }
+    else {
+        write_warnings("\nThis document has no title.");
+    }
+    if ($t_author) {
+        if ($t_authorURL) {
+            my $href = translate_commands($t_authorURL);
+            $href = make_named_href('author', $href,
+                                    "<b><font size=\"+2\">$t_author"
+                                    . '</font></b>');
+            $the_title .= "\n<p>$href</p>";
+        }
+        else {
+            $the_title .= ("\n<p><b><font size=\"+2\">$t_author"
+                           . '</font></b></p>');
+        }
+    }
+    else {
+        write_warnings("\nThere is no author for this document.");
+    }
+    if ($t_institute) {
+        $the_title .= "\n<p>$t_institute</p>";
+    }
+    if ($DEVELOPER_ADDRESS) {
+        $the_title .= "\n<p>$DEVELOPER_ADDRESS</p>";
+    }
+    if ($t_affil) {
+        $the_title .= "\n<p><i>$t_affil</i></p>";
+    }
+    if ($t_date) {
+        $the_title .= "\n<p>";
+        if ($PACKAGE_VERSION) {
+            $the_title .= ('<strong>Release '
+                           . "$PACKAGE_VERSION$RELEASE_INFO</strong><br />\n");
+        }
+        $the_title .= "<strong>$t_date</strong></p>"
+    }
+    if ($t_address) {
+        $the_title .= "\n<p>$t_address</p>";
+    }
+    else {
+        $the_title .= "\n<p></p>";
+    }
+    if ($t_email) {
+        $the_title .= "\n<p>$t_email</p>";
+    }
+    return $the_title;
+}
+
+sub make_my_titlegraphic(){
+    my $filename = make_icon_filename($TITLE_PAGE_GRAPHIC);
+    my $graphic = "<td class=\"titlegraphic\"";
+    $graphic .= " width=\"$TITLE_PAGE_GRAPHIC_COLWIDTH\""
+      if ($TITLE_PAGE_GRAPHIC_COLWIDTH);
+    $graphic .= "><img";
+    $graphic .= " width=\"$TITLE_PAGE_GRAPHIC_WIDTH\""
+      if ($TITLE_PAGE_GRAPHIC_WIDTH);
+    $graphic .= " height=\"$TITLE_PAGE_GRAPHIC_HEIGHT\""
+      if ($TITLE_PAGE_GRAPHIC_HEIGHT);
+    $graphic .= "\n  src=\"$filename\" /></td>\n";
+    return $graphic;
+}
+
+sub do_cmd_maketitle{
+    local($_) = @_;
+    my $the_title = "\n";
+    if ($EXTERNAL_UP_LINK) {
+        # This generates a <link> element in the wrong place (the
+        # body), but I don't see any other way to get this generated
+        # at all.  Browsers like Mozilla, that support navigation
+        # links, can make use of this.
+        $the_title .= ("<link rel='up' href='$EXTERNAL_UP_LINK'"
+                       . ($EXTERNAL_UP_TITLE
+                          ? " title='$EXTERNAL_UP_TITLE'" : '')
+                       . " />\n");
+    }
+    $the_title .= '<div class="titlepage">';
+    if ($TITLE_PAGE_GRAPHIC) {
+        if ($TITLE_PAGE_GRAPHIC_ON_RIGHT) {
+            $the_title .= ("\n<table border=\"0\" width=\"100%\">"
+                           . "<tr align=\"right\">\n<td>"
+                           . make_my_titlepage()
+                           . "</td>\n"
+                           . make_my_titlegraphic()
+                           . "</tr>\n</table>");
+        }
+        else {
+            $the_title .= ("\n<table border=\"0\" width=\"100%\"><tr>\n"
+                           . make_my_titlegraphic()
+                           . "<td>"
+                           . make_my_titlepage()
+                           . "</td></tr>\n</table>");
+        }
+    }
+    else {
+        $the_title .= ("\n<div class='center'>"
+                       . make_my_titlepage()
+                       . "\n</div>");
+    }
+    $the_title .= "\n</div>";
+    return $the_title . $_;
+}
+
+
+#
+#  Module synopsis support
+#
+
+require SynopsisTable;
+
+sub get_chapter_id(){
+    my $id = do_cmd_thechapter('');
+    $id =~ s/<SPAN CLASS="arabic">(\d+)<\/SPAN>/$1/;
+    $id =~ s/\.//;
+    return $id;
+}
+
+# 'chapter' => 'SynopsisTable instance'
+%ModuleSynopses = ();
+
+sub get_synopsis_table($){
+    my $chap = $_[0];
+    my $key;
+    foreach $key (keys %ModuleSynopses) {
+        if ($key eq $chap) {
+            return $ModuleSynopses{$chap};
+        }
+    }
+    my $st = SynopsisTable->new();
+    $ModuleSynopses{$chap} = $st;
+    return $st;
+}
+
+sub do_cmd_moduleauthor{
+    local($_) = @_;
+    next_argument();
+    next_argument();
+    return $_;
+}
+
+sub do_cmd_sectionauthor{
+    local($_) = @_;
+    next_argument();
+    next_argument();
+    return $_;
+}
+
+sub do_cmd_declaremodule{
+    local($_) = @_;
+    my $key = next_optional_argument();
+    my $type = next_argument();
+    my $name = next_argument();
+    my $st = get_synopsis_table(get_chapter_id());
+    #
+    $key = $name unless $key;
+    $type = 'built-in' if $type eq 'builtin';
+    $st->declare($name, $key, $type);
+    define_module($type, $name);
+    return anchor_label("module-$key",$CURRENT_FILE,$_)
+}
+
+sub do_cmd_modulesynopsis{
+    local($_) = @_;
+    my $st = get_synopsis_table(get_chapter_id());
+    $st->set_synopsis($THIS_MODULE, translate_commands(next_argument()));
+    return $_;
+}
+
+sub do_cmd_localmoduletable{
+    local($_) = @_;
+    my $chap = get_chapter_id();
+    my $st = get_synopsis_table($chap);
+    $st->set_file("$CURRENT_FILE");
+    return "<tex2html-localmoduletable><$chap>\\tableofchildlinks[off]" . $_;
+}
+
+sub process_all_localmoduletables(){
+    my $key;
+    foreach $key (keys %ModuleSynopses) {
+        my $st = $ModuleSynopses{$key};
+        my $file = $st->get_file();
+        if ($file) {
+            process_localmoduletables_in_file($file);
+        }
+        else {
+            print "\nsynopsis table $key has no file association\n";
+        }
+    }
+}
+
+sub process_localmoduletables_in_file($){
+    my $file = $_[0];
+    open(MYFILE, "<$file");
+    local($_);
+    sysread(MYFILE, $_, 1024*1024);
+    close(MYFILE);
+    # need to get contents of file in $_
+    while (/<tex2html-localmoduletable><(\d+)>/) {
+        my $match = $&;
+        my $chap = $1;
+        my $st = get_synopsis_table($chap);
+        my $data = $st->tohtml();
+        s/$match/$data/;
+    }
+    open(MYFILE,">$file");
+    print MYFILE $_;
+    close(MYFILE);
+}
+sub process_python_state(){
+    process_all_localmoduletables();
+    process_grammar_files();
+}
+
+
+#
+#  "See also:" -- references placed at the end of a \section
+#
+
+sub do_env_seealso{
+    return ("<div class=\"seealso\">\n  "
+            . "<p class=\"heading\">See Also:</p>\n"
+            . $_[0]
+            . '</div>');
+}
+
+sub do_env_seealsostar{
+    return ("<div class=\"seealso-simple\">\n  "
+            . $_[0]
+            . '</div>');
+}
+
+sub do_cmd_seemodule{
+    # Insert the right magic to jump to the module definition.  This should
+    # work most of the time, at least for repeat builds....
+    local($_) = @_;
+    my $key = next_optional_argument();
+    my $module = next_argument();
+    my $text = next_argument();
+    my $period = '.';
+    $key = $module
+        unless $key;
+    if ($text =~ /\.$/) {
+        $period = '';
+    }
+    return ('<dl compact="compact" class="seemodule">'
+            . "\n    <dt>Module <b><tt class=\"module\">"
+            . "<a href=\"module-$key.html\">$module</a></tt>:</b>"
+            . "\n    <dd>$text$period\n  </dl>"
+            . $_);
+}
+
+sub strip_html_markup($){
+    my $str = $_[0];
+    my $s = "$str";
+    $s =~ s/<[a-zA-Z0-9]+(\s+[a-zA-Z0-9]+(\s*=\s*(\'[^\']*\'|\"[^\"]*\"|[a-zA-Z0-9]+))?)*\s*>//g;
+    $s =~ s/<\/[a-zA-Z0-9]+>//g;
+    return $s;
+}
+
+sub handle_rfclike_reference($$$){
+    local($_, $what, $format) = @_;
+    my $rfcnum = next_argument();
+    my $title = next_argument();
+    my $text = next_argument();
+    my $url = get_rfc_url($rfcnum, $format);
+    my $icon = get_link_icon($url);
+    my $attrtitle = strip_html_markup($title);
+    return '<dl compact="compact" class="seerfc">'
+      . "\n    <dt><a href=\"$url\""
+      . "\n        title=\"$attrtitle\""
+      . "\n        >$what $rfcnum, <em>$title</em>$icon</a>"
+      . "\n    <dd>$text\n  </dl>"
+      . $_;
+}
+
+sub do_cmd_seepep{
+    return handle_rfclike_reference($_[0], "PEP", $PEP_FORMAT);
+}
+
+sub do_cmd_seerfc{
+    # XXX Would be nice to add links to the text/plain and PDF versions.
+    return handle_rfclike_reference($_[0], "RFC", $RFC_FORMAT);
+}
+
+sub do_cmd_seetitle{
+    local($_) = @_;
+    my $url = next_optional_argument();
+    my $title = next_argument();
+    my $text = next_argument();
+    if ($url) {
+        my $icon = get_link_icon($url);
+        return '<dl compact="compact" class="seetitle">'
+          . "\n    <dt><em class=\"citetitle\"><a href=\"$url\""
+          . "\n        >$title$icon</a></em></dt>"
+          . "\n    <dd>$text</dd>\n  </dl>"
+          . $_;
+    }
+    return '<dl compact="compact" class="seetitle">'
+      . "\n    <dt><em class=\"citetitle\""
+      . "\n        >$title</em></dt>"
+      . "\n    <dd>$text</dd>\n  </dl>"
+      . $_;
+}
+
+sub do_cmd_seelink{
+    local($_) = @_;
+    my $url = next_argument();
+    my $linktext = next_argument();
+    my $text = next_argument();
+    my $icon = get_link_icon($url);
+    return '<dl compact="compact" class="seeurl">'
+      . "\n    <dt><a href='$url'"
+      . "\n        >$linktext$icon</a></dt>"
+      . "\n    <dd>$text</dd>\n  </dl>"
+      . $_;
+}
+
+sub do_cmd_seeurl{
+    local($_) = @_;
+    my $url = next_argument();
+    my $text = next_argument();
+    my $icon = get_link_icon($url);
+    return '<dl compact="compact" class="seeurl">'
+      . "\n    <dt><a href=\"$url\""
+      . "\n        class=\"url\">$url$icon</a></dt>"
+      . "\n    <dd>$text</dd>\n  </dl>"
+      . $_;
+}
+
+sub do_cmd_seetext{
+    local($_) = @_;
+    my $content = next_argument();
+    return '<div class="seetext"><p>' . $content . '</p></div>' . $_;
+}
+
+
+#
+#  Definition list support.
+#
+
+sub do_env_definitions{
+    return '<dl class="definitions">' . $_[0] . "</dl>\n";
+}
+
+sub do_cmd_term{
+    local($_) = @_;
+    my $term = next_argument();
+    my($name, $aname, $ahref) = new_link_info();
+    # could easily add an index entry here...
+    return "<dt><b>$aname" . $term . "</a></b></dt>\n<dd>" . $_;
+}
+
+
+# Commands listed here have process-order dependencies; these often
+# are related to indexing operations.
+# XXX Not sure why funclineni, methodlineni, and samp are here.
+#
+process_commands_wrap_deferred(<<_RAW_ARG_DEFERRED_CMDS_);
+declaremodule # [] # {} # {}
+funcline # {} # {}
+funclineni # {} # {}
+memberline # [] # {}
+methodline # [] # {} # {}
+methodlineni # [] # {} # {}
+modulesynopsis # {}
+bifuncindex # {}
+exindex # {}
+indexii # {} # {}
+indexiii # {} # {} # {}
+indexiv # {} # {} # {} # {}
+kwindex # {}
+obindex # {}
+opindex # {}
+stindex # {}
+platform # {}
+samp # {}
+setindexsubitem # {}
+withsubitem # {} # {}
+_RAW_ARG_DEFERRED_CMDS_
+
+
+$alltt_start = '<div class="verbatim"><pre>';
+$alltt_end = '</pre></div>';
+
+sub do_env_alltt{
+    local ($_) = @_;
+    local($closures,$reopens,@open_block_tags);
+
+    # get the tag-strings for all open tags
+    local(@keep_open_tags) = @$open_tags_R;
+    ($closures,$reopens) = &preserve_open_tags() if (@$open_tags_R);
+
+    # get the tags for text-level tags only
+    $open_tags_R = [ @keep_open_tags ];
+    local($local_closures, $local_reopens);
+    ($local_closures, $local_reopens,@open_block_tags)
+      = &preserve_open_block_tags
+        if (@$open_tags_R);
+
+    $open_tags_R = [ @open_block_tags ];
+
+    do {
+        local($open_tags_R) = [ @open_block_tags ];
+        local(@save_open_tags) = ();
+
+        local($cnt) = ++$global{'max_id'};
+        $_ = join('',"$O$cnt$C\\tt$O", ++$global{'max_id'}, $C
+                , $_ , $O, $global{'max_id'}, "$C$O$cnt$C");
+
+        $_ = &translate_environments($_);
+        $_ = &translate_commands($_) if (/\\/);
+
+        # remove spurious <BR> someone sticks in; not sure where they
+        # actually come from
+        # XXX the replacement space is there to accomodate something
+        # broken that inserts a space in front of the first line of
+        # the environment
+        s/<BR>/ /gi;
+
+        $_ = join('', $closures, $alltt_start, $local_reopens
+                , $_
+                , &balance_tags() #, $local_closures
+                , $alltt_end, $reopens);
+        undef $open_tags_R; undef @save_open_tags;
+    };
+    $open_tags_R = [ @keep_open_tags ];
+    return codetext($_);
+}
+
+# List of all filenames produced by do_cmd_verbatiminput()
+%VerbatimFiles = ();
+@VerbatimOutputs = ();
+
+sub get_verbatim_output_name($){
+    my $file = $_[0];
+    #
+    # Re-write the source filename to always use a .txt extension
+    # so that Web servers will present it as text/plain.  This is
+    # needed since there is no other even moderately reliable way
+    # to get the right Content-Type header on text files for
+    # servers which we can't configure (like python.org mirrors).
+    #
+    if (defined $VerbatimFiles{$file}) {
+        # We've seen this one before; re-use the same output file.
+        return $VerbatimFiles{$file};
+    }
+    my($srcname, $srcdir, $srcext) = fileparse($file, '\..*');
+    $filename = "$srcname.txt";
+    #
+    # We need to determine if our default filename is already
+    # being used, and find a new one it it is.  If the name is in
+    # used, this algorithm will first attempt to include the
+    # source extension as part of the name, and if that is also in
+    # use (if the same file is included multiple times, or if
+    # another source file has that as the base name), a counter is
+    # used instead.
+    #
+    my $found = 1;
+  FIND:
+    while ($found) {
+        foreach $fn (@VerbatimOutputs) {
+            if ($fn eq $filename) {
+                if ($found == 1) {
+                    $srcext =~ s/^[.]//;  # Remove '.' from extension
+                    $filename = "$srcname-$srcext.txt";
+                }
+                else {
+                    $filename = "$srcname-$found.txt";
+                }
+                ++$found;
+                next FIND;
+            }
+        }
+        $found = 0;
+    }
+    push @VerbatimOutputs, $filename;
+    $VerbatimFiles{$file} = $filename;
+    return $filename;
+}
+
+sub do_cmd_verbatiminput{
+    local($_) = @_;
+    my $fname = next_argument();
+    my $file;
+    my $found = 0;
+    my $texpath;
+    # Search TEXINPUTS for the input file, the way we're supposed to:
+    foreach $texpath (split /$envkey/, $TEXINPUTS) {
+        $file = "$texpath$dd$fname";
+        last if ($found = (-f $file));
+    }
+    my $filename = '';
+    my $text;
+    if ($found) {
+        open(MYFILE, "<$file") || die "\n$!\n";
+        read(MYFILE, $text, 1024*1024);
+        close(MYFILE);
+        $filename = get_verbatim_output_name($file);
+        # Now that we have a filename, write it out.
+        open(MYFILE, ">$filename");
+        print MYFILE $text;
+        close(MYFILE);
+        #
+        # These rewrites convert the raw text to something that will
+        # be properly visible as HTML and also will pass through the
+        # vagaries of conversion through LaTeX2HTML.  The order in
+        # which the specific rewrites are performed is significant.
+        #
+        $text =~ s/\&/\&amp;/g;
+        # These need to happen before the normal < and > re-writes,
+        # since we need to avoid LaTeX2HTML's attempt to perform
+        # ligature processing without regard to context (since it
+        # doesn't have font information).
+        $text =~ s/--/-&\#45;/g;
+        $text =~ s/<</\&lt;\&\#60;/g;
+        $text =~ s/>>/\&gt;\&\#62;/g;
+        # Just normal re-writes...
+        $text =~ s/</\&lt;/g;
+        $text =~ s/>/\&gt;/g;
+        # These last isn't needed for the HTML, but is needed to get
+        # past LaTeX2HTML processing TeX macros.  We use &#92; instead
+        # of &sol; since many browsers don't support that.
+        $text =~ s/\\/\&\#92;/g;
+    }
+    else {
+        return '<b>Could not locate requested file <i>$fname</i>!</b>\n';
+    }
+    my $note = 'Download as text.';
+    if ($file ne $filename) {
+        $note = ('Download as text (original file name: <span class="file">'
+                 . $fname
+                 . '</span>).');
+    }
+    return ("<div class=\"verbatim\">\n<pre>"
+            . $text
+            . "</pre>\n<div class=\"footer\">\n"
+            . "<a href=\"$filename\" type=\"text/plain\""
+            . ">$note</a>"
+            . "\n</div></div>"
+            . $_);
+}
+
+1;                              # This must be the last line