--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/components/texinfo/texi2html.pl Wed May 11 16:27:33 2011 -0700
@@ -0,0 +1,2128 @@
+#!/usr/perl5/bin/perl
+'di ';
+'ig 00 ';
+#+##############################################################################
+# #
+# File: texi2html #
+# #
+# Description: Program to transform most Texinfo documents to HTML #
+# #
+#-##############################################################################
+
+# From @(#)texi2html 1.52 01/05/98 Written (mainly) by Lionel Cons, [email protected]
+# $Id: texi2html,v 1.5 1999/02/20 20:27:00 karl Exp $
+# This version of texi2html is currently maintained at
+# ftp://ftp.cs.umb.edu/pub/tex/texi2html by [email protected].
+
+# The man page for this program is included at the end of this file and can be
+# viewed using the command 'nroff -man texi2html'.
+# Please read the copyright at the end of the man page.
+
+#+++############################################################################
+# #
+# Constants #
+# #
+#---############################################################################
+
+$DEBUG_TOC = 1;
+$DEBUG_INDEX = 2;
+$DEBUG_BIB = 4;
+$DEBUG_GLOSS = 8;
+$DEBUG_DEF = 16;
+$DEBUG_HTML = 32;
+$DEBUG_USER = 64;
+
+$BIBRE = '\[[\w\/-]+\]'; # RE for a bibliography reference
+$FILERE = '[\/\w.+-]+'; # RE for a file name
+$VARRE = '[^\s\{\}]+'; # RE for a variable name
+$NODERE = '[^@{}:\'`",]+'; # RE for a node name
+$NODESRE = '[^@{}:\'`"]+'; # RE for a list of node names
+$XREFRE = '[^@{}]+'; # RE for a xref (should use NODERE)
+
+$ERROR = "***"; # prefix for errors and warnings
+$THISVERSION = "1.56k";
+$THISPROG = "texi2html $THISVERSION"; # program name and version
+$HOMEPAGE = "http://wwwinfo.cern.ch/dis/texi2html/"; # program home page
+$TODAY = &pretty_date; # like "20 September 1993"
+$SPLITTAG = "<!-- SPLIT HERE -->\n"; # tag to know where to split
+$PROTECTTAG = "_ThisIsProtected_"; # tag to recognize protected sections
+$html2_doctype = '<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0 Strict Level 2//EN">';
+
+#
+# language dependent constants
+#
+#$LDC_SEE = 'see';
+#$LDC_SECTION = 'section';
+#$LDC_IN = 'in';
+#$LDC_TOC = 'Table of Contents';
+#$LDC_GOTO = 'Go to the';
+#$LDC_FOOT = 'Footnotes';
+# TODO: @def* shortcuts
+
+#
+# pre-defined indices
+#
+%predefined_index = (
+ 'cp', 'c',
+ 'fn', 'f',
+ 'vr', 'v',
+ 'ky', 'k',
+ 'pg', 'p',
+ 'tp', 't',
+ );
+
+#
+# valid indices
+#
+%valid_index = (
+ 'c', 1,
+ 'f', 1,
+ 'v', 1,
+ 'k', 1,
+ 'p', 1,
+ 't', 1,
+ );
+
+#
+# texinfo section names to level
+#
+%sec2level = (
+ 'top', 0,
+ 'chapter', 1,
+ 'unnumbered', 1,
+ 'majorheading', 1,
+ 'chapheading', 1,
+ 'appendix', 1,
+ 'section', 2,
+ 'unnumberedsec', 2,
+ 'heading', 2,
+ 'appendixsec', 2,
+ 'appendixsection', 2,
+ 'subsection', 3,
+ 'unnumberedsubsec', 3,
+ 'subheading', 3,
+ 'appendixsubsec', 3,
+ 'subsubsection', 4,
+ 'unnumberedsubsubsec', 4,
+ 'subsubheading', 4,
+ 'appendixsubsubsec', 4,
+ );
+
+#
+# accent map, TeX command to ISO name
+#
+%accent_map = (
+ '"', 'uml',
+ '~', 'tilde',
+ '^', 'circ',
+ '`', 'grave',
+ '\'', 'acute',
+ );
+
+#
+# texinfo "simple things" (@foo) to HTML ones
+#
+%simple_map = (
+ # cf. makeinfo.c
+ "*", "<BR>", # HTML+
+ " ", " ",
+ "\t", " ",
+ "-", "­", # soft hyphen
+ "\n", "\n",
+ "|", "",
+ 'tab', '<\/TD><TD>',
+ # spacing commands
+ ":", "",
+ "!", "!",
+ "?", "?",
+ ".", ".",
+ "-", "",
+ );
+
+#
+# texinfo "things" (@foo{}) to HTML ones
+#
+%things_map = (
+ 'TeX', 'TeX',
+ 'br', '<P>', # paragraph break
+ 'bullet', '*',
+ 'copyright', '(C)',
+ 'dots', '...',
+ 'equiv', '==',
+ 'error', 'error-->',
+ 'expansion', '==>',
+ 'minus', '-',
+ 'point', '-!-',
+ 'print', '-|',
+ 'result', '=>',
+ 'today', $TODAY,
+ );
+
+#
+# texinfo styles (@foo{bar}) to HTML ones
+#
+%style_map = (
+ 'asis', '',
+ 'b', 'B',
+ 'cite', 'CITE',
+ 'code', 'CODE',
+ 'ctrl', '&do_ctrl', # special case
+ 'dfn', 'EM', # DFN tag is illegal in the standard
+ 'dmn', '', # useless
+ 'email', '&do_email', # insert a clickable email address
+ 'emph', 'EM',
+ 'file', '"TT', # will put quotes, cf. &apply_style
+ 'i', 'I',
+ 'kbd', 'KBD',
+ 'key', 'KBD',
+ 'math', 'EM',
+ 'r', '', # unsupported
+ 'samp', '"SAMP', # will put quotes, cf. &apply_style
+ 'sc', '&do_sc', # special case
+ 'strong', 'STRONG',
+ 't', 'TT',
+ 'titlefont', '', # useless
+ 'uref', '&do_uref', # insert a clickable URL
+ 'url', '&do_url', # insert a clickable URL
+ 'var', 'VAR',
+ 'w', '', # unsupported
+ );
+
+#
+# texinfo format (@foo/@end foo) to HTML ones
+#
+%format_map = (
+ 'display', 'PRE',
+ 'example', 'PRE',
+ 'format', 'PRE',
+ 'lisp', 'PRE',
+ 'quotation', 'BLOCKQUOTE',
+ 'smallexample', 'PRE',
+ 'smalllisp', 'PRE',
+ # lists
+ 'itemize', 'UL',
+ 'enumerate', 'OL',
+ # poorly supported
+ 'flushleft', 'PRE',
+ 'flushright', 'PRE',
+ );
+
+#
+# texinfo definition shortcuts to real ones
+#
+%def_map = (
+ # basic commands
+ 'deffn', 0,
+ 'defvr', 0,
+ 'deftypefn', 0,
+ 'deftypevr', 0,
+ 'defcv', 0,
+ 'defop', 0,
+ 'deftp', 0,
+ # basic x commands
+ 'deffnx', 0,
+ 'defvrx', 0,
+ 'deftypefnx', 0,
+ 'deftypevrx', 0,
+ 'defcvx', 0,
+ 'defopx', 0,
+ 'deftpx', 0,
+ # shortcuts
+ 'defun', 'deffn Function',
+ 'defmac', 'deffn Macro',
+ 'defspec', 'deffn {Special Form}',
+ 'defvar', 'defvr Variable',
+ 'defopt', 'defvr {User Option}',
+ 'deftypefun', 'deftypefn Function',
+ 'deftypevar', 'deftypevr Variable',
+ 'defivar', 'defcv {Instance Variable}',
+ 'defmethod', 'defop Method',
+ # x shortcuts
+ 'defunx', 'deffnx Function',
+ 'defmacx', 'deffnx Macro',
+ 'defspecx', 'deffnx {Special Form}',
+ 'defvarx', 'defvrx Variable',
+ 'defoptx', 'defvrx {User Option}',
+ 'deftypefunx', 'deftypefnx Function',
+ 'deftypevarx', 'deftypevrx Variable',
+ 'defivarx', 'defcvx {Instance Variable}',
+ 'defmethodx', 'defopx Method',
+ );
+
+#
+# things to skip
+#
+%to_skip = (
+ # comments
+ 'c', 1,
+ 'comment', 1,
+ 'ifnothtml', 1,
+ # useless
+ 'detailmenu', 1,
+ 'direntry', 1,
+ 'contents', 1,
+ 'shortcontents', 1,
+ 'summarycontents', 1,
+ 'footnotestyle', 1,
+ 'end ifclear', 1,
+ 'end ifset', 1,
+ 'titlepage', 1,
+ 'end titlepage', 1,
+ # unsupported commands (formatting)
+ 'afourpaper', 1,
+ 'cropmarks', 1,
+ 'finalout', 1,
+ 'headings', 1,
+ 'sp', 1,
+ 'need', 1,
+ 'page', 1,
+ 'setchapternewpage', 1,
+ 'everyheading', 1,
+ 'everyfooting', 1,
+ 'evenheading', 1,
+ 'evenfooting', 1,
+ 'oddheading', 1,
+ 'oddfooting', 1,
+ 'smallbook', 1,
+ 'vskip', 1,
+ 'filbreak', 1,
+ 'paragraphindent', 1,
+ # unsupported formats
+ 'cartouche', 1,
+ 'end cartouche', 1,
+ 'group', 1,
+ 'end group', 1,
+ );
+
+#+++############################################################################
+# #
+# Argument parsing, initialisation #
+# #
+#---############################################################################
+
+%value = (); # hold texinfo variables, see also -D
+
+$use_bibliography = 1;
+$use_acc = 0;
+$debug = 0;
+$doctype = '';
+$check = 0;
+$expandinfo = 0;
+$use_glossary = 0;
+$invisible_mark = '';
+$use_iso = 0;
+@include_dirs = ();
+$show_menu = 0;
+$number_sections = 0;
+$split_node = 0;
+$split_chapter = 0;
+$monolithic = 0;
+$verbose = 0;
+$usage = <<EOT;
+This is $THISPROG
+To convert a Texinfo file to HMTL: $0 [options] file
+ where options can be:
+ -expandinfo : use \@ifinfo sections, not \@iftex
+ -glossary : handle a glossary
+ -invisible name: use 'name' as an invisible anchor
+ -Dname : define name like with \@set
+ -I dir : search also for files in 'dir'
+ -menu : handle menus
+ -monolithic : output only one file including ToC
+ -number : number sections
+ -split_chapter : split on main sections
+ -split_node : split on nodes
+ -usage : print usage instructions
+ -verbose : verbose output
+To check converted files: $0 -check [-verbose] files
+EOT
+
+while (@ARGV && $ARGV[0] =~ /^-/) {
+ $_ = shift(@ARGV);
+ if (/^-acc$/) { $use_acc = 1; next; }
+ if (/^-d(ebug)?(\d+)?$/) { $debug = $2 || shift(@ARGV); next; }
+ if (/^-doctype$/) { $doctype = shift(@ARGV); next; }
+ if (/^-c(heck)?$/) { $check = 1; next; }
+ if (/^-e(xpandinfo)?$/) { $expandinfo = 1; next; }
+ if (/^-g(lossary)?$/) { $use_glossary = 1; next; }
+ if (/^-i(nvisible)?$/) { $invisible_mark = shift(@ARGV); next; }
+ if (/^-iso$/) { $use_iso = 1; next; }
+ if (/^-D(.+)?$/) { $value{$1 || shift(@ARGV)} = 1; next; }
+ if (/^-I(.+)?$/) { push(@include_dirs, $1 || shift(@ARGV)); next; }
+ if (/^-m(enu)?$/) { $show_menu = 1; next; }
+ if (/^-mono(lithic)?$/) { $monolithic = 1; next; }
+ if (/^-n(umber)?$/) { $number_sections = 1; next; }
+ if (/^-s(plit)?_?(n(ode)?|c(hapter)?)?$/) {
+ if ($2 =~ /^n/) {
+ $split_node = 1;
+ } else {
+ $split_chapter = 1;
+ }
+ next;
+ }
+ if (/^-v(erbose)?$/) { $verbose = 1; next; }
+ die $usage;
+}
+if ($check) {
+ die $usage unless @ARGV > 0;
+ ✓
+ exit;
+}
+
+if (($split_node || $split_chapter) && $monolithic) {
+ warn "Can't use -monolithic with -split, -monolithic ignored.\n";
+ $monolithic = 0;
+}
+if ($expandinfo) {
+ $to_skip{'ifinfo'}++;
+ $to_skip{'end ifinfo'}++;
+ $to_skip{'ifnottex'}++;
+ $to_skip{'end ifnottex'}++;
+} else {
+ $to_skip{'iftex'}++;
+ $to_skip{'end iftex'}++;
+}
+$invisible_mark = '<IMG SRC="invisible.xbm">' if $invisible_mark eq 'xbm';
+die $usage unless @ARGV == 1;
+$docu = shift(@ARGV);
+if ($docu =~ /.*\//) {
+ chop($docu_dir = $&);
+ $docu_name = $';
+} else {
+ $docu_dir = '.';
+ $docu_name = $docu;
+}
+unshift(@include_dirs, $docu_dir);
+$docu_name =~ s/\.te?x(i|info)?$//; # basename of the document
+
+$docu_doc = "$docu_name.html"; # document's contents
+if ($monolithic) {
+ $docu_toc = $docu_foot = $docu_doc;
+} else {
+ $docu_toc = "${docu_name}_toc.html"; # document's table of contents
+ $docu_foot = "${docu_name}_foot.html"; # document's footnotes
+}
+
+#
+# variables
+#
+$value{'html'} = 1; # predefine html (the output format)
+$value{'texi2html'} = $THISVERSION; # predefine texi2html (the translator)
+# _foo: internal to track @foo
+foreach ('_author', '_title', '_subtitle',
+ '_settitle', '_setfilename') {
+ $value{$_} = ''; # prevent -w warnings
+}
+%node2sec = (); # node to section name
+%node2href = (); # node to HREF
+%bib2href = (); # bibliography reference to HREF
+%gloss2href = (); # glossary term to HREF
+@sections = (); # list of sections
+%tag2pro = (); # protected sections
+
+#
+# initial indexes
+#
+$bib_num = 0;
+$foot_num = 0;
+$gloss_num = 0;
+$idx_num = 0;
+$sec_num = 0;
+$doc_num = 0;
+$html_num = 0;
+
+#
+# can I use ISO8879 characters? (HTML+)
+#
+if ($use_iso) {
+ $things_map{'bullet'} = "•";
+ $things_map{'copyright'} = "©";
+ $things_map{'dots'} = "…";
+ $things_map{'equiv'} = "≡";
+ $things_map{'expansion'} = "→";
+ $things_map{'point'} = "∗";
+ $things_map{'result'} = "⇒";
+}
+
+#
+# read texi2html extensions (if any)
+#
+$extensions = 'texi2html.ext'; # extensions in working directory
+if (-f $extensions) {
+ print "# reading extensions from $extensions\n" if $verbose;
+ require($extensions);
+}
+($progdir = $0) =~ s/[^\/]+$//;
+if ($progdir && ($progdir ne './')) {
+ $extensions = "${progdir}texi2html.ext"; # extensions in texi2html directory
+ if (-f $extensions) {
+ print "# reading extensions from $extensions\n" if $verbose;
+ require($extensions);
+ }
+}
+
+print "# reading from $docu\n" if $verbose;
+
+#+++############################################################################
+# #
+# Pass 1: read source, handle command, variable, simple substitution #
+# #
+#---############################################################################
+
+@lines = (); # whole document
+@toc_lines = (); # table of contents
+$toplevel = 0; # top level seen in hierarchy
+$curlevel = 0; # current level in TOC
+$node = ''; # current node name
+$in_table = 0; # am I inside a table
+$table_type = ''; # type of table ('', 'f', 'v', 'multi')
+@tables = (); # nested table support
+$in_bibliography = 0; # am I inside a bibliography
+$in_glossary = 0; # am I inside a glossary
+$in_top = 0; # am I inside the top node
+$in_pre = 0; # am I inside a preformatted section
+$in_list = 0; # am I inside a list
+$in_html = 0; # am I inside an HTML section
+$first_line = 1; # is it the first line
+$dont_html = 0; # don't protect HTML on this line
+$split_num = 0; # split index
+$deferred_ref = ''; # deferred reference for indexes
+@html_stack = (); # HTML elements stack
+$html_element = ''; # current HTML element
+&html_reset;
+
+# build code for simple substitutions
+# the maps used (%simple_map and %things_map) MUST be aware of this
+# watch out for regexps, / and escaped characters!
+$subst_code = '';
+foreach (keys(%simple_map)) {
+ ($re = $_) =~ s/(\W)/\\$1/g; # protect regexp chars
+ $subst_code .= "s/\\\@$re/$simple_map{$_}/g;\n";
+}
+foreach (keys(%things_map)) {
+ $subst_code .= "s/\\\@$_\\{\\}/$things_map{$_}/g;\n";
+}
+if ($use_acc) {
+ # accentuated characters
+ foreach (keys(%accent_map)) {
+ if ($_ eq "`") {
+ $subst_code .= "s/$;3";
+ } elsif ($_ eq "'") {
+ $subst_code .= "s/$;4";
+ } else {
+ $subst_code .= "s/\\\@\\$_";
+ }
+ $subst_code .= "([aeiou])/&\${1}$accent_map{$_};/gi;\n";
+ }
+}
+eval("sub simple_substitutions { $subst_code }");
+
+&init_input;
+while ($_ = &next_line) {
+ #
+ # remove \input on the first lines only
+ #
+ if ($first_line) {
+ next if /^\\input/;
+ $first_line = 0;
+ }
+ #
+ # parse texinfo tags
+ #
+ $tag = '';
+ $end_tag = '';
+ if (/^\s*\@end\s+(\w+)\b/) {
+ $end_tag = $1;
+ } elsif (/^\s*\@(\w+)\b/) {
+ $tag = $1;
+ }
+ #
+ # handle @ifhtml / @end ifhtml
+ #
+ if ($in_html) {
+ if ($end_tag eq 'ifhtml') {
+ $in_html = 0;
+ } else {
+ $tag2pro{$in_html} .= $_;
+ }
+ next;
+ } elsif ($tag eq 'ifhtml') {
+ $in_html = $PROTECTTAG . ++$html_num;
+ push(@lines, $in_html);
+ next;
+ }
+ #
+ # try to skip the line
+ #
+ if ($end_tag) {
+ next if $to_skip{"end $end_tag"};
+ } elsif ($tag) {
+ next if $to_skip{$tag};
+ last if $tag eq 'bye';
+ }
+ if ($in_top) {
+ # parsing the top node
+ if ($tag eq 'node' || $tag eq 'include' || $sec2level{$tag}) {
+ # no more in top
+ $in_top = 0;
+ } else {
+ # skip it
+ next;
+ }
+ }
+ #
+ # try to remove inlined comments
+ # syntax from tex-mode.el comment-start-skip
+ #
+ s/((^|[^\@])(\@\@)*)\@c(omment)? .*/$1/;
+ # non-@ substitutions cf. texinfmt.el
+ unless ($in_pre) {
+ s/``/\"/g;
+ s/''/\"/g;
+ s/([\w ])---([\w ])/$1--$2/g;
+ }
+ #
+ # analyze the tag
+ #
+ if ($tag) {
+ # skip lines
+ &skip_until($tag), next if $tag eq 'ignore';
+ if ($expandinfo) {
+ &skip_until($tag), next if $tag eq 'iftex';
+ } else {
+ &skip_until($tag), next if $tag eq 'ifinfo';
+ }
+ &skip_until($tag), next if $tag eq 'tex';
+ # handle special tables
+ if ($tag =~ /^(|f|v|multi)table$/) {
+ $table_type = $1;
+ $tag = 'table';
+ }
+ # special cases
+ if ($tag eq 'top' || ($tag eq 'node' && /^\@node\s+top\s*,/i)) {
+ $in_top = 1;
+ @lines = (); # ignore all lines before top (title page garbage)
+ next;
+ } elsif ($tag eq 'node') {
+ $in_top = 0;
+ warn "$ERROR Bad node line: $_" unless $_ =~ /^\@node\s$NODESRE$/o;
+ $_ = &protect_html($_); # if node contains '&' for instance
+ s/^\@node\s+//;
+ ($node) = split(/,/);
+ &normalise_node($node);
+ if ($split_node) {
+ &next_doc;
+ push(@lines, $SPLITTAG) if $split_num++;
+ push(@sections, $node);
+ }
+ next;
+ } elsif ($tag eq 'include') {
+ if (/^\@include\s+($FILERE)\s*$/o) {
+ $file = $1;
+ unless (-e $file) {
+ foreach $dir (@include_dirs) {
+ $file = "$dir/$1";
+ last if -e $file;
+ }
+ }
+ if (-e $file) {
+ &open($file);
+ print "# including $file\n" if $verbose;
+ } else {
+ warn "$ERROR Can't find $file, skipping";
+ }
+ } else {
+ warn "$ERROR Bad include line: $_";
+ }
+ next;
+ } elsif ($tag eq 'ifclear') {
+ if (/^\@ifclear\s+($VARRE)\s*$/o) {
+ next unless defined($value{$1});
+ &skip_until($tag);
+ } else {
+ warn "$ERROR Bad ifclear line: $_";
+ }
+ next;
+ } elsif ($tag eq 'ifset') {
+ if (/^\@ifset\s+($VARRE)\s*$/o) {
+ next if defined($value{$1});
+ &skip_until($tag);
+ } else {
+ warn "$ERROR Bad ifset line: $_";
+ }
+ next;
+ } elsif ($tag eq 'menu') {
+ unless ($show_menu) {
+ &skip_until($tag);
+ next;
+ }
+ &html_push_if($tag);
+ push(@lines, &html_debug("\n", __LINE__));
+ } elsif ($format_map{$tag}) {
+ $in_pre = 1 if $format_map{$tag} eq 'PRE';
+ &html_push_if($format_map{$tag});
+ push(@lines, &html_debug("\n", __LINE__));
+ $in_list++ if $format_map{$tag} eq 'UL' || $format_map{$tag} eq 'OL' ;
+ push(@lines, &debug("<$format_map{$tag}>\n", __LINE__));
+ next;
+ } elsif ($tag eq 'table') {
+ if (/^\s*\@(|f|v|multi)table\s+\@(\w+)/) {
+ $in_table = $2;
+ unshift(@tables, join($;, $table_type, $in_table));
+ if ($table_type eq "multi") {
+ push(@lines, &debug("<TABLE BORDER>\n", __LINE__));
+ &html_push_if('TABLE');
+ } else {
+ push(@lines, &debug("<DL COMPACT>\n", __LINE__));
+ &html_push_if('DL');
+ }
+ push(@lines, &html_debug("\n", __LINE__));
+ } else {
+ warn "$ERROR Bad table line: $_";
+ }
+ next;
+ } elsif ($tag eq 'synindex' || $tag eq 'syncodeindex') {
+ if (/^\@$tag\s+(\w)\w\s+(\w)\w\s*$/) {
+ eval("*${1}index = *${2}index");
+ } else {
+ warn "$ERROR Bad syn*index line: $_";
+ }
+ next;
+ } elsif ($tag eq 'sp') {
+ push(@lines, &debug("<P>\n", __LINE__));
+ next;
+ } elsif ($tag eq 'setref') {
+ &protect_html; # if setref contains '&' for instance
+ if (/^\@$tag\s*{($NODERE)}\s*$/) {
+ $setref = $1;
+ $setref =~ s/\s+/ /g; # normalize
+ $setref =~ s/ $//;
+ $node2sec{$setref} = $name;
+ $node2href{$setref} = "$docu_doc#$docid";
+ } else {
+ warn "$ERROR Bad setref line: $_";
+ }
+ next;
+ } elsif ($tag eq 'defindex' || $tag eq 'defcodeindex') {
+ if (/^\@$tag\s+(\w\w)\s*$/) {
+ $valid_index{$1} = 1;
+ } else {
+ warn "$ERROR Bad defindex line: $_";
+ }
+ next;
+ } elsif ($tag eq 'lowersections') {
+ local ($sec, $level);
+ while (($sec, $level) = each %sec2level) {
+ $sec2level{$sec} = $level + 1;
+ }
+ next;
+ } elsif ($tag eq 'raisesections') {
+ local ($sec, $level);
+ while (($sec, $level) = each %sec2level) {
+ $sec2level{$sec} = $level - 1;
+ }
+ next;
+ } elsif (defined($def_map{$tag})) {
+ if ($def_map{$tag}) {
+ s/^\@$tag\s+//;
+ $tag = $def_map{$tag};
+ $_ = "\@$tag $_";
+ $tag =~ s/\s.*//;
+ }
+ } elsif (defined($user_sub{$tag})) {
+ s/^\@$tag\s+//;
+ $sub = $user_sub{$tag};
+ print "# user $tag = $sub, arg: $_" if $debug & $DEBUG_USER;
+ if (defined(&$sub)) {
+ chop($_);
+ &$sub($_);
+ } else {
+ warn "$ERROR Bad user sub for $tag: $sub\n";
+ }
+ next;
+ }
+ if (defined($def_map{$tag})) {
+ s/^\@$tag\s+//;
+ if ($tag =~ /x$/) {
+ # extra definition line
+ $tag = $`;
+ $is_extra = 1;
+ } else {
+ $is_extra = 0;
+ }
+ while (/\{([^\{\}]*)\}/) {
+ # this is a {} construct
+ ($before, $contents, $after) = ($`, $1, $');
+ # protect spaces
+ $contents =~ s/\s+/$;9/g;
+ # restore $_ protecting {}
+ $_ = "$before$;7$contents$;8$after";
+ }
+ @args = split(/\s+/, &protect_html($_));
+ foreach (@args) {
+ s/$;9/ /g; # unprotect spaces
+ s/$;7/\{/g; # ... {
+ s/$;8/\}/g; # ... }
+ }
+ $type = shift(@args);
+ $type =~ s/^\{(.*)\}$/$1/;
+ print "# def ($tag): {$type} ", join(', ', @args), "\n"
+ if $debug & $DEBUG_DEF;
+ $type .= ':'; # it's nicer like this
+ $name = shift(@args);
+ $name =~ s/^\{(.*)\}$/$1/;
+ if ($is_extra) {
+ $_ = &debug("<DT>", __LINE__);
+ } else {
+ $_ = &debug("<DL>\n<DT>", __LINE__);
+ }
+ if ($tag eq 'deffn' || $tag eq 'defvr' || $tag eq 'deftp') {
+ $_ .= "<U>$type</U> <B>$name</B>";
+ $_ .= " <I>@args</I>" if @args;
+ } elsif ($tag eq 'deftypefn' || $tag eq 'deftypevr'
+ || $tag eq 'defcv' || $tag eq 'defop') {
+ $ftype = $name;
+ $name = shift(@args);
+ $name =~ s/^\{(.*)\}$/$1/;
+ $_ .= "<U>$type</U> $ftype <B>$name</B>";
+ $_ .= " <I>@args</I>" if @args;
+ } else {
+ warn "$ERROR Unknown definition type: $tag\n";
+ $_ .= "<U>$type</U> <B>$name</B>";
+ $_ .= " <I>@args</I>" if @args;
+ }
+ $_ .= &debug("\n<DD>", __LINE__);
+ $name = &unprotect_html($name);
+ if ($tag eq 'deffn' || $tag eq 'deftypefn') {
+ unshift(@input_spool, "\@findex $name\n");
+ } elsif ($tag eq 'defop') {
+ unshift(@input_spool, "\@findex $name on $ftype\n");
+ } elsif ($tag eq 'defvr' || $tag eq 'deftypevr' || $tag eq 'defcv') {
+ unshift(@input_spool, "\@vindex $name\n");
+ } else {
+ unshift(@input_spool, "\@tindex $name\n");
+ }
+ $dont_html = 1;
+ }
+ } elsif ($end_tag) {
+ if ($format_map{$end_tag}) {
+ $in_pre = 0 if $format_map{$end_tag} eq 'PRE';
+ $in_list-- if $format_map{$end_tag} eq 'UL' || $format_map{$end_tag} eq 'OL' ;
+ &html_pop_if('LI', 'P');
+ &html_pop_if();
+ push(@lines, &debug("</$format_map{$end_tag}>\n", __LINE__));
+ push(@lines, &html_debug("\n", __LINE__));
+ } elsif ($end_tag =~ /^(|f|v|multi)table$/) {
+ unless (@tables) {
+ warn "$ERROR \@end $end_tag without \@*table\n";
+ next;
+ }
+ ($table_type, $in_table) = split($;, shift(@tables));
+ unless ($1 eq $table_type) {
+ warn "$ERROR \@end $end_tag without matching \@$end_tag\n";
+ next;
+ }
+ if ($table_type eq "multi") {
+ push(@lines, "</TR></TABLE>\n");
+ &html_pop_if('TR');
+ } else {
+ push(@lines, "</DL>\n");
+ &html_pop_if('DD');
+ }
+ &html_pop_if();
+ if (@tables) {
+ ($table_type, $in_table) = split($;, $tables[0]);
+ } else {
+ $in_table = 0;
+ }
+ } elsif (defined($def_map{$end_tag})) {
+ push(@lines, &debug("</DL>\n", __LINE__));
+ } elsif ($end_tag eq 'menu') {
+ &html_pop_if();
+ push(@lines, $_); # must keep it for pass 2
+ }
+ next;
+ }
+ #
+ # misc things
+ #
+ # protect texi and HTML things
+ &protect_texi;
+ $_ = &protect_html($_) unless $dont_html;
+ $dont_html = 0;
+ # substitution (unsupported things)
+ s/^\@center\s+//g;
+ s/^\@exdent\s+//g;
+ s/\@noindent\s+//g;
+ s/\@refill\s+//g;
+ # other substitutions
+ &simple_substitutions;
+ s/\@value{($VARRE)}/$value{$1}/eg;
+ s/\@footnote\{/\@footnote$docu_doc\{/g; # mark footnotes, cf. pass 4
+ #
+ # analyze the tag again
+ #
+ if ($tag) {
+ if (defined($sec2level{$tag}) && $sec2level{$tag} > 0) {
+ if (/^\@$tag\s+(.+)$/) {
+ $name = $1;
+ $name =~ s/\s+$//;
+ $level = $sec2level{$tag};
+ $name = &update_sec_num($tag, $level) . " $name"
+ if $number_sections && $tag !~ /^unnumbered/;
+ if ($tag =~ /heading$/) {
+ push(@lines, &html_debug("\n", __LINE__));
+ if ($html_element ne 'body') {
+ # We are in a nice pickle here. We are trying to get a H? heading
+ # even though we are not in the body level. So, we convert it to a
+ # nice, bold, line by itself.
+ $_ = &debug("\n\n<P><STRONG>$name</STRONG>\n\n", __LINE__);
+ } else {
+ $_ = &debug("<H$level>$name</H$level>\n", __LINE__);
+ &html_push_if('body');
+ }
+ print "# heading, section $name, level $level\n"
+ if $debug & $DEBUG_TOC;
+ } else {
+ if ($split_chapter) {
+ unless ($toplevel) {
+ # first time we see a "section"
+ unless ($level == 1) {
+ warn "$ERROR The first section found is not of level 1: $_";
+ warn "$ERROR I'll split on sections of level $level...\n";
+ }
+ $toplevel = $level;
+ }
+ if ($level == $toplevel) {
+ &next_doc;
+ push(@lines, $SPLITTAG) if $split_num++;
+ push(@sections, $name);
+ }
+ }
+ $sec_num++;
+ $docid = "SEC$sec_num";
+ $tocid = "TOC$sec_num";
+ # check biblio and glossary
+ $in_bibliography = ($name =~ /^([A-Z]|\d+)?(\.\d+)*\s*bibliography$/i);
+ $in_glossary = ($name =~ /^([A-Z]|\d+)?(\.\d+)*\s*glossary$/i);
+ # check node
+ if ($node) {
+ if ($node2sec{$node}) {
+ warn "$ERROR Duplicate node found: $node\n";
+ } else {
+ $node2sec{$node} = $name;
+ $node2href{$node} = "$docu_doc#$docid";
+ print "# node $node, section $name, level $level\n"
+ if $debug & $DEBUG_TOC;
+ }
+ $node = '';
+ } else {
+ print "# no node, section $name, level $level\n"
+ if $debug & $DEBUG_TOC;
+ }
+ # update TOC
+ while ($level > $curlevel) {
+ $curlevel++;
+ push(@toc_lines, "<UL>\n");
+ }
+ while ($level < $curlevel) {
+ $curlevel--;
+ push(@toc_lines, "</UL>\n");
+ }
+ $_ = "<LI>" . &anchor($tocid, "$docu_doc#$docid", $name, 1);
+ push(@toc_lines, &substitute_style($_));
+ # update DOC
+ push(@lines, &html_debug("\n", __LINE__));
+ &html_reset;
+ $_ = "<H$level>".&anchor($docid, "$docu_toc#$tocid", $name)."</H$level>\n";
+ $_ = &debug($_, __LINE__);
+ push(@lines, &html_debug("\n", __LINE__));
+ }
+ # update DOC
+ foreach $line (split(/\n+/, $_)) {
+ push(@lines, "$line\n");
+ }
+ next;
+ } else {
+ warn "$ERROR Bad section line: $_";
+ }
+ } else {
+ # track variables
+ $value{$1} = $2, next if /^\@set\s+($VARRE)\s+(.*)$/o;
+ delete $value{$1}, next if /^\@clear\s+($VARRE)\s*$/o;
+ # store things
+ $value{'_setfilename'} = $1, next if /^\@setfilename\s+(.*)$/;
+ $value{'_settitle'} = $1, next if /^\@settitle\s+(.*)$/;
+ $value{'_author'} .= "$1\n", next if /^\@author\s+(.*)$/;
+ $value{'_subtitle'} .= "$1\n", next if /^\@subtitle\s+(.*)$/;
+ $value{'_title'} .= "$1\n", next if /^\@title\s+(.*)$/;
+ # index
+ if (/^\@(..?)index\s+/) {
+ unless ($valid_index{$1}) {
+ warn "$ERROR Undefined index command: $_";
+ next;
+ }
+ $id = 'IDX' . ++$idx_num;
+ $index = $1 . 'index';
+ $what = &substitute_style($');
+ $what =~ s/\s+$//;
+ print "# found $index for '$what' id $id\n"
+ if $debug & $DEBUG_INDEX;
+ eval(<<EOC);
+ if (defined(\$$index\{\$what\})) {
+ \$$index\{\$what\} .= "$;$docu_doc#$id";
+ } else {
+ \$$index\{\$what\} = "$docu_doc#$id";
+ }
+EOC
+ #
+ # dirty hack to see if I can put an invisible anchor...
+ #
+ if ($html_element eq 'P' ||
+ $html_element eq 'LI' ||
+ $html_element eq 'DT' ||
+ $html_element eq 'DD' ||
+ $html_element eq 'ADDRESS' ||
+ $html_element eq 'B' ||
+ $html_element eq 'BLOCKQUOTE' ||
+ $html_element eq 'PRE' ||
+ $html_element eq 'SAMP') {
+ push(@lines, &anchor($id, '', $invisible_mark, !$in_pre));
+ } elsif ($html_element eq 'body') {
+ push(@lines, &debug("<P>\n", __LINE__));
+ push(@lines, &anchor($id, '', $invisible_mark, !$in_pre));
+ &html_push('P');
+ } elsif ($html_element eq 'DL' ||
+ $html_element eq 'UL' ||
+ $html_element eq 'OL' ) {
+ $deferred_ref .= &anchor($id, '', $invisible_mark, !$in_pre) . " ";
+ }
+ next;
+ }
+ # list item
+ if (/^\s*\@itemx?\s+/) {
+ $what = $';
+ $what =~ s/\s+$//;
+ if ($in_bibliography && $use_bibliography) {
+ if ($what =~ /^$BIBRE$/o) {
+ $id = 'BIB' . ++$bib_num;
+ $bib2href{$what} = "$docu_doc#$id";
+ print "# found bibliography for '$what' id $id\n"
+ if $debug & $DEBUG_BIB;
+ $what = &anchor($id, '', $what);
+ }
+ } elsif ($in_glossary && $use_glossary) {
+ $id = 'GLOSS' . ++$gloss_num;
+ $entry = $what;
+ $entry =~ tr/A-Z/a-z/ unless $entry =~ /^[A-Z\s]+$/;
+ $gloss2href{$entry} = "$docu_doc#$id";
+ print "# found glossary for '$entry' id $id\n"
+ if $debug & $DEBUG_GLOSS;
+ $what = &anchor($id, '', $what);
+ }
+ &html_pop_if('P');
+ if ($html_element eq 'DL' || $html_element eq 'DD') {
+ if ($things_map{$in_table} && !$what) {
+ # special case to allow @table @bullet for instance
+ push(@lines, &debug("<DT>$things_map{$in_table}\n", __LINE__));
+ } else {
+ push(@lines, &debug("<DT>\@$in_table\{$what\}\n", __LINE__));
+ }
+ push(@lines, "<DD>");
+ &html_push('DD') unless $html_element eq 'DD';
+ if ($table_type) { # add also an index
+ unshift(@input_spool, "\@${table_type}index $what\n");
+ }
+ } elsif ($html_element eq 'TABLE') {
+ push(@lines, &debug("<TR><TD>$what</TD>\n", __LINE__));
+ &html_push('TR');
+ } elsif ($html_element eq 'TR') {
+ push(@lines, &debug("</TR>\n", __LINE__));
+ push(@lines, &debug("<TR><TD>$what</TD>\n", __LINE__));
+ } else {
+ push(@lines, &debug("<LI>$what\n", __LINE__));
+ &html_push('LI') unless $html_element eq 'LI';
+ }
+ push(@lines, &html_debug("\n", __LINE__));
+ if ($deferred_ref) {
+ push(@lines, &debug("$deferred_ref\n", __LINE__));
+ $deferred_ref = '';
+ }
+ next;
+ } elsif (/^\@tab\s+(.*)$/) {
+ push(@lines, "<TD>$1</TD>\n");
+ next;
+ }
+ }
+ }
+ # paragraph separator
+ if ($_ eq "\n") {
+ next if $#lines >= 0 && $lines[$#lines] eq "\n";
+ if ($html_element eq 'P') {
+ push(@lines, "\n");
+ $_ = &debug("\n", __LINE__);
+ &html_pop;
+ }
+ } elsif ($html_element eq 'body' || $html_element eq 'BLOCKQUOTE') {
+ push(@lines, "<P>\n");
+ &html_push('P');
+ $_ = &debug($_, __LINE__);
+ }
+ # otherwise
+ push(@lines, $_);
+}
+
+# finish TOC
+$level = 0;
+while ($level < $curlevel) {
+ $curlevel--;
+ push(@toc_lines, "</UL>\n");
+}
+
+print "# end of pass 1\n" if $verbose;
+
+#+++############################################################################
+# #
+# Pass 2/3: handle style, menu, index, cross-reference #
+# #
+#---############################################################################
+
+@lines2 = (); # whole document (2nd pass)
+@lines3 = (); # whole document (3rd pass)
+$in_menu = 0; # am I inside a menu
+
+while (@lines) {
+ $_ = shift(@lines);
+ #
+ # special case (protected sections)
+ #
+ if (/^$PROTECTTAG/o) {
+ push(@lines2, $_);
+ next;
+ }
+ #
+ # menu
+ #
+ $in_menu = 1, push(@lines2, &debug("<UL>\n", __LINE__)), next if /^\@menu\b/;
+ $in_menu = 0, push(@lines2, &debug("</UL>\n", __LINE__)), next if /^\@end\s+menu\b/;
+ if ($in_menu) {
+ if (/^\*\s+($NODERE)::/o) {
+ $descr = $';
+ chop($descr);
+ &menu_entry($1, $1, $descr);
+ } elsif (/^\*\s+(.+):\s+([^\t,\.\n]+)[\t,\.\n]/) {
+ $descr = $';
+ chop($descr);
+ &menu_entry($1, $2, $descr);
+ } elsif (/^\*/) {
+ warn "$ERROR Bad menu line: $_";
+ } else { # description continued?
+ push(@lines2, $_);
+ }
+ next;
+ }
+ #
+ # printindex
+ #
+ if (/^\@printindex\s+(\w\w)\b/) {
+ local($index, *ary, @keys, $key, $letter, $last_letter, @refs);
+ if ($predefined_index{$1}) {
+ $index = $predefined_index{$1} . 'index';
+ } else {
+ $index = $1 . 'index';
+ }
+ eval("*ary = *$index");
+ @keys = keys(%ary);
+ foreach $key (@keys) {
+ $_ = $key;
+ 1 while s/<(\w+)>\`(.*)\'<\/\1>/$2/; # remove HTML tags with quotes
+ 1 while s/<(\w+)>(.*)<\/\1>/$2/; # remove HTML tags
+ $_ = &unprotect_html($_);
+ &unprotect_texi;
+ tr/A-Z/a-z/; # lowercase
+ $key2alpha{$key} = $_;
+ print "# index $key sorted as $_\n"
+ if $key ne $_ && $debug & $DEBUG_INDEX;
+ }
+ push(@lines2, "Jump to:\n");
+ $last_letter = undef;
+ foreach $key (sort byalpha @keys) {
+ $letter = substr($key2alpha{$key}, 0, 1);
+ $letter = substr($key2alpha{$key}, 0, 2) if $letter eq $;;
+ if (!defined($last_letter) || $letter ne $last_letter) {
+ push(@lines2, "-\n") if defined($last_letter);
+ push(@lines2, "<A HREF=\"#$index\_$letter\">" . &protect_html($letter) . "</A>\n");
+ $last_letter = $letter;
+ }
+ }
+ push(@lines2, "<P>\n");
+ $last_letter = undef;
+ foreach $key (sort byalpha @keys) {
+ $letter = substr($key2alpha{$key}, 0, 1);
+ $letter = substr($key2alpha{$key}, 0, 2) if $letter eq $;;
+ if (!defined($last_letter) || $letter ne $last_letter) {
+ push(@lines2, "</DIR>\n") if defined($last_letter);
+ push(@lines2, "<H2><A NAME=\"$index\_$letter\">" . &protect_html($letter) . "</A></H2>\n");
+ push(@lines2, "<DIR>\n");
+ $last_letter = $letter;
+ }
+ @refs = ();
+ foreach (split(/$;/, $ary{$key})) {
+ push(@refs, &anchor('', $_, $key, 0));
+ }
+ push(@lines2, "<LI>" . join(", ", @refs) . "\n");
+ }
+ push(@lines2, "</DIR>\n") if defined($last_letter);
+ next;
+ }
+ #
+ # simple style substitutions
+ #
+ $_ = &substitute_style($_);
+ #
+ # xref
+ #
+ while (/\@(x|px|info|)ref{($XREFRE)(}?)/o) {
+ # note: Texinfo may accept other characters
+ ($type, $nodes, $full) = ($1, $2, $3);
+ ($before, $after) = ($`, $');
+ if (! $full && $after) {
+ warn "$ERROR Bad xref (no ending } on line): $_";
+ $_ = "$before$;0${type}ref\{$nodes$after";
+ next; # while xref
+ }
+ if ($type eq 'x') {
+ $type = 'See ';
+ } elsif ($type eq 'px') {
+ $type = 'see ';
+ } elsif ($type eq 'info') {
+ $type = 'See Info';
+ } else {
+ $type = '';
+ }
+ unless ($full) {
+ $next = shift(@lines);
+ $next = &substitute_style($next);
+ chop($nodes); # remove final newline
+ if ($next =~ /\}/) { # split on 2 lines
+ $nodes .= " $`";
+ $after = $';
+ } else {
+ $nodes .= " $next";
+ $next = shift(@lines);
+ $next = &substitute_style($next);
+ chop($nodes);
+ if ($next =~ /\}/) { # split on 3 lines
+ $nodes .= " $`";
+ $after = $';
+ } else {
+ warn "$ERROR Bad xref (no ending }): $_";
+ $_ = "$before$;0xref\{$nodes$after";
+ unshift(@lines, $next);
+ next; # while xref
+ }
+ }
+ }
+ $nodes =~ s/\s+/ /g; # remove useless spaces
+ @args = split(/\s*,\s*/, $nodes);
+ $node = $args[0]; # the node is always the first arg
+ &normalise_node($node);
+ $sec = $node2sec{$node};
+ if (@args == 5) { # reference to another manual
+ $sec = $args[2] || $node;
+ $man = $args[4] || $args[3];
+ $_ = "${before}${type}section `$sec' in \@cite{$man}$after";
+ } elsif ($type =~ /Info/) { # inforef
+ warn "$ERROR Wrong number of arguments: $_" unless @args == 3;
+ ($nn, $_, $in) = @args;
+ $_ = "${before}${type} file `$in', node `$nn'$after";
+ } elsif ($sec) {
+ $href = $node2href{$node};
+ $_ = "${before}${type}section " . &anchor('', $href, $sec) . $after;
+ } else {
+ warn "$ERROR Undefined node ($node): $_";
+ $_ = "$before$;0xref{$nodes}$after";
+ }
+ }
+
+ if (/^\@image\s*{/) {
+ s/\@image\s*{//;
+ my (@args) = split (/,/);
+ my $base = $args[0];
+ my $image;
+ if (-r "$base.jpg") {
+ $image = "$base.jpg";
+ } elsif (-r "$base.png") {
+ $image = "$base.png";
+ } elsif (-r "$base.gif") {
+ $image = "$base.gif";
+ } else {
+ warn "$ERROR no image file for $base: $_";
+ }
+ $_ = "<IMG SRC=\"$image\" ALT=\"$base\">";
+ }
+
+ #
+ # try to guess bibliography references or glossary terms
+ #
+ unless (/^<H\d><A NAME=\"SEC\d/) {
+ if ($use_bibliography) {
+ $done = '';
+ while (/$BIBRE/o) {
+ ($pre, $what, $post) = ($`, $&, $');
+ $href = $bib2href{$what};
+ if (defined($href) && $post !~ /^[^<]*<\/A>/) {
+ $done .= $pre . &anchor('', $href, $what);
+ } else {
+ $done .= "$pre$what";
+ }
+ $_ = $post;
+ }
+ $_ = $done . $_;
+ }
+ if ($use_glossary) {
+ $done = '';
+ while (/\b\w+\b/) {
+ ($pre, $what, $post) = ($`, $&, $');
+ $entry = $what;
+ $entry =~ tr/A-Z/a-z/ unless $entry =~ /^[A-Z\s]+$/;
+ $href = $gloss2href{$entry};
+ if (defined($href) && $post !~ /^[^<]*<\/A>/) {
+ $done .= $pre . &anchor('', $href, $what);
+ } else {
+ $done .= "$pre$what";
+ }
+ $_ = $post;
+ }
+ $_ = $done . $_;
+ }
+ }
+ # otherwise
+ push(@lines2, $_);
+}
+print "# end of pass 2\n" if $verbose;
+
+#
+# split style substitutions
+#
+while (@lines2) {
+ $_ = shift(@lines2);
+ #
+ # special case (protected sections)
+ #
+ if (/^$PROTECTTAG/o) {
+ push(@lines3, $_);
+ next;
+ }
+ #
+ # split style substitutions
+ #
+ $old = '';
+ while ($old ne $_) {
+ $old = $_;
+ if (/\@(\w+)\{/) {
+ ($before, $style, $after) = ($`, $1, $');
+ if (defined($style_map{$style})) {
+ $_ = $after;
+ $text = '';
+ $after = '';
+ $failed = 1;
+ while (@lines2) {
+ if (/\}/) {
+ $text .= $`;
+ $after = $';
+ $failed = 0;
+ last;
+ } else {
+ $text .= $_;
+ $_ = shift(@lines2);
+ }
+ }
+ if ($failed) {
+ die "* Bad syntax (\@$style) after: $before\n";
+ } else {
+ $text = &apply_style($style, $text);
+ $_ = "$before$text$after";
+ }
+ }
+ }
+ }
+ # otherwise
+ push(@lines3, $_);
+}
+print "# end of pass 3\n" if $verbose;
+
+#+++############################################################################
+# #
+# Pass 4: foot notes, final cleanup #
+# #
+#---############################################################################
+
+@foot_lines = (); # footnotes
+@doc_lines = (); # final document
+$end_of_para = 0; # true if last line is <P>
+
+while (@lines3) {
+ $_ = shift(@lines3);
+ #
+ # special case (protected sections)
+ #
+ if (/^$PROTECTTAG/o) {
+ push(@doc_lines, $_);
+ $end_of_para = 0;
+ next;
+ }
+ #
+ # footnotes
+ #
+ while (/\@footnote([^\{\s]+)\{/) {
+ ($before, $d, $after) = ($`, $1, $');
+ $_ = $after;
+ $text = '';
+ $after = '';
+ $failed = 1;
+ while (@lines3) {
+ if (/\}/) {
+ $text .= $`;
+ $after = $';
+ $failed = 0;
+ last;
+ } else {
+ $text .= $_;
+ $_ = shift(@lines3);
+ }
+ }
+ if ($failed) {
+ die "* Bad syntax (\@footnote) after: $before\n";
+ } else {
+ $foot_num++;
+ $docid = "DOCF$foot_num";
+ $footid = "FOOT$foot_num";
+ $foot = "($foot_num)";
+ push(@foot_lines, "<H3>" . &anchor($footid, "$d#$docid", $foot) . "</H3>\n");
+ $text = "<P>$text" unless $text =~ /^\s*<P>/;
+ push(@foot_lines, "$text\n");
+ $_ = $before . &anchor($docid, "$docu_foot#$footid", $foot) . $after;
+ }
+ }
+ #
+ # remove unnecessary <P>
+ #
+ if (/^\s*<P>\s*$/) {
+ next if $end_of_para++;
+ } else {
+ $end_of_para = 0;
+ }
+ # otherwise
+ push(@doc_lines, $_);
+}
+print "# end of pass 4\n" if $verbose;
+
+#+++############################################################################
+# #
+# Pass 5: print things #
+# #
+#---############################################################################
+
+$header = <<EOT;
+<!-- Created by $THISPROG from $docu on $TODAY -->
+EOT
+
+$full_title = $value{'_title'} || $value{'_settitle'} || "Untitled Document";
+$title = $value{'_settitle'} || $full_title;
+$_ = &substitute_style($full_title);
+&unprotect_texi;
+s/\n$//; # rmv last \n (if any)
+$full_title = "<H1>" . join("</H1>\n<H1>", split(/\n/, $_)) . "</H1>\n";
+
+#
+# print ToC
+#
+if (!$monolithic && @toc_lines) {
+ if (open(FILE, "> $docu_toc")) {
+ print "# creating $docu_toc...\n" if $verbose;
+ &print_toplevel_header("$title - Table of Contents");
+ &print_ruler;
+ &print(*toc_lines, FILE);
+ &print_toplevel_footer;
+ close(FILE);
+ } else {
+ warn "$ERROR Can't write to $docu_toc: $!\n";
+ }
+}
+
+#
+# print footnotes
+#
+if (!$monolithic && @foot_lines) {
+ if (open(FILE, "> $docu_foot")) {
+ print "# creating $docu_foot...\n" if $verbose;
+ &print_toplevel_header("$title - Footnotes");
+ &print_ruler;
+ &print(*foot_lines, FILE);
+ &print_toplevel_footer;
+ close(FILE);
+ } else {
+ warn "$ERROR Can't write to $docu_foot: $!\n";
+ }
+}
+
+#
+# print document
+#
+if ($split_chapter || $split_node) { # split
+ $doc_num = 0;
+ $last_num = scalar(@sections);
+ $first_doc = &doc_name(1);
+ $last_doc = &doc_name($last_num);
+ while (@sections) {
+ $section = shift(@sections);
+ &next_doc;
+ if (open(FILE, "> $docu_doc")) {
+ print "# creating $docu_doc...\n" if $verbose;
+ &print_header("$title - $section");
+ $prev_doc = ($doc_num == 1 ? undef : &doc_name($doc_num - 1));
+ $next_doc = ($doc_num == $last_num ? undef : &doc_name($doc_num + 1));
+ $navigation = "Go to the ";
+ $navigation .= ($prev_doc ? &anchor('', $first_doc, "first") : "first");
+ $navigation .= ", ";
+ $navigation .= ($prev_doc ? &anchor('', $prev_doc, "previous") : "previous");
+ $navigation .= ", ";
+ $navigation .= ($next_doc ? &anchor('', $next_doc, "next") : "next");
+ $navigation .= ", ";
+ $navigation .= ($next_doc ? &anchor('', $last_doc, "last") : "last");
+ $navigation .= " section, " . &anchor('', $docu_toc, "table of contents") . ".\n";
+ print FILE $navigation;
+ &print_ruler;
+ # find corresponding lines
+ @tmp_lines = ();
+ while (@doc_lines) {
+ $_ = shift(@doc_lines);
+ last if ($_ eq $SPLITTAG);
+ push(@tmp_lines, $_);
+ }
+ &print(*tmp_lines, FILE);
+ &print_ruler;
+ print FILE $navigation;
+ &print_footer;
+ close(FILE);
+ } else {
+ warn "$ERROR Can't write to $docu_doc: $!\n";
+ }
+ }
+} else { # not split
+ if (open(FILE, "> $docu_doc")) {
+ print "# creating $docu_doc...\n" if $verbose;
+ if ($monolithic || !@toc_lines) {
+ &print_toplevel_header($title);
+ } else {
+ &print_header($title);
+ print FILE $full_title;
+ }
+ if ($monolithic && @toc_lines) {
+ &print_ruler;
+ print FILE "<H1>Table of Contents</H1>\n";
+ &print(*toc_lines, FILE);
+ }
+ &print_ruler;
+ &print(*doc_lines, FILE);
+ if ($monolithic && @foot_lines) {
+ &print_ruler;
+ print FILE "<H1>Footnotes</H1>\n";
+ &print(*foot_lines, FILE);
+ }
+ if ($monolithic || !@toc_lines) {
+ &print_toplevel_footer;
+ } else {
+ &print_footer;
+ }
+ close(FILE);
+ } else {
+ warn "$ERROR Can't write to $docu_doc: $!\n";
+ }
+}
+
+print "# that's all folks\n" if $verbose;
+
+#+++############################################################################
+# #
+# Low level functions #
+# #
+#---############################################################################
+
+sub update_sec_num {
+ local($name, $level) = @_;
+ my $ret;
+
+ $level--; # here we start at 0
+ if ($name =~ /^appendix/) {
+ # appendix style
+ if (defined(@appendix_sec_num)) {
+ &incr_sec_num($level, @appendix_sec_num);
+ } else {
+ @appendix_sec_num = ('A', 0, 0, 0);
+ }
+ $ret = join('.', @appendix_sec_num[0..$level]);
+ } else {
+ # normal style
+ if (defined(@normal_sec_num)) {
+ &incr_sec_num($level, @normal_sec_num);
+ } else {
+ @normal_sec_num = (1, 0, 0, 0);
+ }
+ $ret = join('.', @normal_sec_num[0..$level]);
+ }
+
+ $ret .= "." if $level == 0;
+ return $ret;
+}
+
+sub incr_sec_num {
+ local($level, $l);
+ $level = shift(@_);
+ $_[$level]++;
+ foreach $l ($level+1 .. 3) {
+ $_[$l] = 0;
+ }
+}
+
+sub check {
+ local($_, %seen, %context, $before, $match, $after);
+
+ while (<>) {
+ if (/\@(\*|\.|\:|\@|\{|\})/) {
+ $seen{$&}++;
+ $context{$&} .= "> $_" if $verbose;
+ $_ = "$`XX$'";
+ redo;
+ }
+ if (/\@(\w+)/) {
+ ($before, $match, $after) = ($`, $&, $');
+ if ($before =~ /\b[\w-]+$/ && $after =~ /^[\w-.]*\b/) { # e-mail address
+ $seen{'e-mail address'}++;
+ $context{'e-mail address'} .= "> $_" if $verbose;
+ } else {
+ $seen{$match}++;
+ $context{$match} .= "> $_" if $verbose;
+ }
+ $match =~ s/^\@/X/;
+ $_ = "$before$match$after";
+ redo;
+ }
+ }
+
+ foreach (sort(keys(%seen))) {
+ if ($verbose) {
+ print "$_\n";
+ print $context{$_};
+ } else {
+ print "$_ ($seen{$_})\n";
+ }
+ }
+}
+
+sub open {
+ local($name) = @_;
+
+ ++$fh_name;
+ if (open($fh_name, $name)) {
+ unshift(@fhs, $fh_name);
+ } else {
+ warn "$ERROR Can't read file $name: $!\n";
+ }
+}
+
+sub init_input {
+ @fhs = (); # hold the file handles to read
+ @input_spool = (); # spooled lines to read
+ $fh_name = 'FH000';
+ &open($docu);
+}
+
+sub next_line {
+ local($fh, $line);
+
+ if (@input_spool) {
+ $line = shift(@input_spool);
+ return($line);
+ }
+ while (@fhs) {
+ $fh = $fhs[0];
+ $line = <$fh>;
+ return($line) if $line;
+ close($fh);
+ shift(@fhs);
+ }
+ return(undef);
+}
+
+# used in pass 1, use &next_line
+sub skip_until {
+ local($tag) = @_;
+ local($_);
+
+ while ($_ = &next_line) {
+ return if /^\@end\s+$tag\s*$/;
+ }
+ die "* Failed to find '$tag' after: " . $lines[$#lines];
+}
+
+#
+# HTML stacking to have a better HTML output
+#
+
+sub html_reset {
+ @html_stack = ('html');
+ $html_element = 'body';
+}
+
+sub html_push {
+ local($what) = @_;
+ push(@html_stack, $html_element);
+ $html_element = $what;
+}
+
+sub html_push_if {
+ local($what) = @_;
+ push(@html_stack, $html_element)
+ if ($html_element && $html_element ne 'P');
+ $html_element = $what;
+}
+
+sub html_pop {
+ $html_element = pop(@html_stack);
+}
+
+sub html_pop_if {
+ local($elt);
+
+ if (@_) {
+ foreach $elt (@_) {
+ if ($elt eq $html_element) {
+ $html_element = pop(@html_stack) if @html_stack;
+ last;
+ }
+ }
+ } else {
+ $html_element = pop(@html_stack) if @html_stack;
+ }
+}
+
+sub html_debug {
+ local($what, $line) = @_;
+ return("<!-- $line @html_stack, $html_element -->$what")
+ if $debug & $DEBUG_HTML;
+ return($what);
+}
+
+# to debug the output...
+sub debug {
+ local($what, $line) = @_;
+ return("<!-- $line -->$what")
+ if $debug & $DEBUG_HTML;
+ return($what);
+}
+
+sub normalise_node {
+ $_[0] =~ s/\s+/ /g;
+ $_[0] =~ s/ $//;
+ $_[0] =~ s/^ //;
+}
+
+sub menu_entry {
+ local($entry, $node, $descr) = @_;
+ local($href);
+
+ &normalise_node($node);
+ $href = $node2href{$node};
+ if ($href) {
+ $descr =~ s/^\s+//;
+ $descr = ": $descr" if $descr;
+ push(@lines2, "<LI>" . &anchor('', $href, $entry) . "$descr\n");
+ } else {
+ warn "$ERROR Undefined node ($node): $_";
+ }
+}
+
+sub do_ctrl { "^$_[0]" }
+
+sub do_email {
+ local($addr, $text) = split(/,\s*/, $_[0]);
+
+ $text = $addr unless $text;
+ &anchor('', "mailto:$addr", $text);
+}
+
+sub do_sc { "\U$_[0]\E" }
+
+sub do_uref {
+ local($url, $text) = split(/,\s*/, $_[0]);
+
+ $text = $url unless $text;
+ &anchor('', $url, $text);
+}
+
+sub do_url { &anchor('', $_[0], $_[0]) }
+
+sub apply_style {
+ local($texi_style, $text) = @_;
+ local($style);
+
+ $style = $style_map{$texi_style};
+ if (defined($style)) { # known style
+ if ($style =~ /^\"/) { # add quotes
+ $style = $';
+ $text = "\`$text\'";
+ }
+ if ($style =~ /^\&/) { # custom
+ $style = $';
+ $text = &$style($text);
+ } elsif ($style) { # good style
+ $text = "<$style>$text</$style>";
+ } else { # no style
+ }
+ } else { # unknown style
+ $text = undef;
+ }
+ return($text);
+}
+
+# remove Texinfo styles
+sub remove_style {
+ local($_) = @_;
+ s/\@\w+{([^\{\}]+)}/$1/g;
+ return($_);
+}
+
+sub substitute_style {
+ local($_) = @_;
+ local($changed, $done, $style, $text);
+
+ $changed = 1;
+ while ($changed) {
+ $changed = 0;
+ $done = '';
+ while (/\@(\w+){([^\{\}]+)}/) {
+ $text = &apply_style($1, $2);
+ if ($text) {
+ $_ = "$`$text$'";
+ $changed = 1;
+ } else {
+ $done .= "$`\@$1";
+ $_ = "{$2}$'";
+ }
+ }
+ $_ = $done . $_;
+ }
+ return($_);
+}
+
+sub anchor {
+ local($name, $href, $text, $newline) = @_;
+ local($result);
+
+ $result = "<A";
+ $result .= " NAME=\"$name\"" if $name;
+ $result .= " HREF=\"$href\"" if $href;
+ $result .= ">$text</A>";
+ $result .= "\n" if $newline;
+ return($result);
+}
+
+sub pretty_date {
+ local(@MoY, $sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst);
+
+ @MoY = ('January', 'February', 'March', 'April', 'May', 'June',
+ 'July', 'August', 'September', 'October', 'November', 'December');
+ ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) = localtime(time);
+ $year += ($year < 70) ? 2000 : 1900;
+ return("$mday $MoY[$mon] $year");
+}
+
+sub doc_name {
+ local($num) = @_;
+
+ return("${docu_name}_$num.html");
+}
+
+sub next_doc {
+ $docu_doc = &doc_name(++$doc_num);
+}
+
+sub print {
+ local(*lines, $fh) = @_;
+ local($_);
+
+ while (@lines) {
+ $_ = shift(@lines);
+ if (/^$PROTECTTAG/o) {
+ $_ = $tag2pro{$_};
+ } else {
+ &unprotect_texi;
+ }
+ print $fh $_;
+ }
+}
+
+sub print_ruler {
+ print FILE "<P><HR><P>\n";
+}
+
+sub print_header {
+ local($_);
+
+ # clean the title
+ $_ = &remove_style($_[0]);
+ &unprotect_texi;
+ # print the header
+ if ($doctype eq 'html2') {
+ print FILE $html2_doctype;
+ } elsif ($doctype) {
+ print FILE $doctype;
+ }
+ print FILE <<EOT;
+<HTML>
+<HEAD>
+$header
+<TITLE>$_</TITLE>
+</HEAD>
+<BODY>
+EOT
+}
+
+sub print_toplevel_header {
+ local($_);
+
+ &print_header; # pass given arg...
+ print FILE $full_title;
+ if ($value{'_subtitle'}) {
+ $value{'_subtitle'} =~ s/\n+$//;
+ foreach (split(/\n/, $value{'_subtitle'})) {
+ $_ = &substitute_style($_);
+ &unprotect_texi;
+ print FILE "<H2>$_</H2>\n";
+ }
+ }
+ if ($value{'_author'}) {
+ $value{'_author'} =~ s/\n+$//;
+ foreach (split(/\n/, $value{'_author'})) {
+ $_ = &substitute_style($_);
+ &unprotect_texi;
+ s/[\w.-]+\@[\w.-]+/<A HREF="mailto:$&">$&<\/A>/g;
+ print FILE "<ADDRESS>$_</ADDRESS>\n";
+ }
+ }
+ print FILE "<P>\n";
+}
+
+sub print_footer {
+ print FILE <<EOT;
+</BODY>
+</HTML>
+EOT
+}
+
+sub print_toplevel_footer {
+ &print_ruler;
+ print FILE <<EOT;
+This document was generated on $TODAY using
+<A HREF=\"$HOMEPAGE\">texi2html</A> $value{texi2html}.
+EOT
+ &print_footer;
+}
+
+sub protect_texi {
+ # protect @ { } ` '
+ s/\@\@/$;0/go;
+ s/\@\{/$;1/go;
+ s/\@\}/$;2/go;
+ s/\@\`/$;3/go;
+ s/\@\'/$;4/go;
+}
+
+sub protect_html {
+ local($what) = @_;
+ # protect & < >
+ $what =~ s/\&/\&\#38;/g;
+ $what =~ s/\</\&\#60;/g;
+ $what =~ s/\>/\&\#62;/g;
+ # but recognize some HTML things
+ $what =~ s/\&\#60;\/A\&\#62;/<\/A>/g; # </A>
+ $what =~ s/\&\#60;A ([^\&]+)\&\#62;/<A $1>/g; # <A [^&]+>
+ $what =~ s/\&\#60;IMG ([^\&]+)\&\#62;/<IMG $1>/g; # <IMG [^&]+>
+ return($what);
+}
+
+sub unprotect_texi {
+ s/$;0/\@/go;
+ s/$;1/\{/go;
+ s/$;2/\}/go;
+ s/$;3/\`/go;
+ s/$;4/\'/go;
+}
+
+sub unprotect_html {
+ local($what) = @_;
+ $what =~ s/\&\#38;/\&/g;
+ $what =~ s/\&\#60;/\</g;
+ $what =~ s/\&\#62;/\>/g;
+ return($what);
+}
+
+sub byalpha {
+ $key2alpha{$a} cmp $key2alpha{$b};
+}
+
+##############################################################################
+
+ # These next few lines are legal in both Perl and nroff.
+
+.00 ; # finish .ig
+
+'di \" finish diversion--previous line must be blank
+.nr nl 0-1 \" fake up transition to first page again
+.nr % 0 \" start at page 1
+'; __END__ ############# From here on it's a standard manual page ############
+.TH TEXI2HTML 1 "01/05/98"
+.AT 3
+.SH NAME
+texi2html \- a Texinfo to HTML converter
+.SH SYNOPSIS
+.B texi2html [options] file
+.PP
+.B texi2html -check [-verbose] files
+.SH DESCRIPTION
+.I Texi2html
+converts the given Texinfo file to a set of HTML files. It tries to handle
+most of the Texinfo commands. It creates hypertext links for cross-references,
+footnotes...
+.PP
+It also tries to add links from a reference to its corresponding entry in the
+bibliography (if any). It may also handle a glossary (see the
+.B \-glossary
+option).
+.PP
+.I Texi2html
+creates several files depending on the contents of the Texinfo file and on
+the chosen options (see FILES).
+.PP
+The HTML files created by
+.I texi2html
+are closer to TeX than to Info, that's why
+.I texi2html
+converts @iftex sections and not @ifinfo ones by default. You can reverse
+this with the \-expandinfo option.
+.SH OPTIONS
+.TP 12
+.B \-check
+Check the given file and give the list of all things that may be Texinfo commands.
+This may be used to check the output of
+.I texi2html
+to find the Texinfo commands that have been left in the HTML file.
+.TP
+.B \-expandinfo
+Expand @ifinfo sections, not @iftex ones.
+.TP
+.B \-glossary
+Use the section named 'Glossary' to build a list of terms and put links in the HTML
+document from each term toward its definition.
+.TP
+.B \-invisible \fIname\fP
+Use \fIname\fP to create invisible destination anchors for index links
+(you can for instance use the invisible.xbm file shipped with this program).
+This is a workaround for a known bug of many WWW browsers, including netscape.
+.TP
+.B \-I \fIdir\fP
+Look also in \fIdir\fP to find included files.
+.TP
+.B \-menu
+Show the Texinfo menus; by default they are ignored.
+.TP
+.B \-monolithic
+Output only one file, including the table of contents and footnotes.
+.TP
+.B \-number
+Number the sections.
+.TP
+.B \-split_chapter
+Split the output into several HTML files (one per main section:
+chapter, appendix...).
+.TP
+.B \-split_node
+Split the output into several HTML files (one per node).
+.TP
+.B \-usage
+Print usage instructions, listing the current available command-line options.
+.TP
+.B \-verbose
+Give a verbose output. Can be used with the
+.B \-check
+option.
+.PP
+.SH FILES
+By default
+.I texi2html
+creates the following files (foo being the name of the Texinfo file):
+.TP 16
+.B foo_toc.html
+The table of contents.
+.TP
+.B foo.html
+The document's contents.
+.TP
+.B foo_foot.html
+The footnotes (if any).
+.PP
+When used with the
+.B \-split
+option, it creates several files (one per chapter or node), named
+.B foo_n.html
+(n being the indice of the chapter or node), instead of the single
+.B foo.html
+file.
+.PP
+When used with the
+.B \-monolithic
+option, it creates only one file:
+.B foo.html
+.SH VARIABLES
+.I texi2html
+predefines the following variables: \fBhtml\fP, \fBtexi2html\fP.
+.SH ADDITIONAL COMMANDS
+.I texi2html
+implements the following non-Texinfo commands (maybe they are in Texinfo now...):
+.TP 16
+.B @ifhtml
+This indicates the start of an HTML section, this section will passed through
+without any modification.
+.TP
+.B @end ifhtml
+This indicates the end of an HTML section.
+.SH VERSION
+This is \fItexi2html\fP version 1.56k, 1999-02-20.
+.PP
+The latest version of \fItexi2html\fP can be found in WWW, cf. URLs
+http://wwwinfo.cern.ch/dis/texi2html/
+.br
+http://texinfo.org/texi2html/
+.SH AUTHOR
+The main author is Lionel Cons, CERN IT/DIS/OSE, [email protected].
+Many other people around the net contributed to this program.
+.SH COPYRIGHT
+This program is the intellectual property of the European
+Laboratory for Particle Physics (known as CERN). No guarantee whatsoever is
+provided by CERN. No liability whatsoever is accepted for any loss or damage
+of any kind resulting from any defect or inaccuracy in this information or
+code.
+.PP
+CERN, 1211 Geneva 23, Switzerland
+.SH "SEE ALSO"
+GNU Texinfo Documentation Format,
+HyperText Markup Language (HTML),
+World Wide Web (WWW).
+.SH BUGS
+This program does not understand all Texinfo commands (yet).
+.PP
+TeX specific commands (normally enclosed in @iftex) will be
+passed unmodified.
+.ex