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texi2html
executable file
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texi2html
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#!/usr/bin/perl
'di ';
'ig 00 ';
#+##############################################################################
# #
# File: texi2html #
# #
# Description: Program to transform most Texinfo documents to HTML #
# #
#-##############################################################################
# @(#)texi2html 1.51 09/10/96 Written (mainly) by Lionel Cons, [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
$THISPROG = "texi2html 1.51"; # program name and version
$HOMEPAGE = "http:https://wwwcn.cern.ch/dci/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+
" ", " ",
"\n", "\n",
"|", "",
# 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', 'STRONG', # DFN tag is illegal in the standard
'dmn', '', # useless
'emph', 'EM',
'file', '"TT', # will put quotes, cf. &apply_style
'i', 'I',
'kbd', 'KBD',
'key', 'KBD',
'r', '', # unsupported
'samp', '"SAMP', # will put quotes, cf. &apply_style
'sc', '&do_sc', # special case
'strong', 'STRONG',
't', 'TT',
'titlefont', '', # useless
'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,
# useless
'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,
'need', 1,
'page', 1,
'setchapternewpage', 1,
'everyheading', 1,
'everyfooting', 1,
'evenheading', 1,
'evenfooting', 1,
'oddheading', 1,
'oddfooting', 1,
'smallbook', 1,
'vskip', 1,
'filbreak', 1,
# unsupported formats
'cartouche', 1,
'end cartouche', 1,
'group', 1,
'end group', 1,
);
#+++############################################################################
# #
# Argument parsing, initialisation #
# #
#---############################################################################
$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
-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 >= 0 && $ARGV[0] =~ /^-/) {
$_ = shift(@ARGV);
if (/^-acc$/) { $use_acc = 1; next; }
if (/^-d(ebug)?(\d+)?$/) { $debug = $2 || shift(@ARGV); next; }
if (/^-doctype$/) { $doctype = shift(@ARGV); next; }
if (/^-c(heck)?$/) { $check = 1; next; }
if (/^-e(xpandinfo)?$/) { $expandinfo = 1; next; }
if (/^-g(lossary)?$/) { $use_glossary = 1; next; }
if (/^-i(nvisible)?$/) { $invisible_mark = shift(@ARGV); next; }
if (/^-iso$/) { $use_iso = 1; next; }
if (/^-I(.+)?$/) { 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'}++;
} 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 = (); # hold texinfo variables
$value{'html'} = 1; # predefine html (the output format)
$value{'texi2html'} = '1.51'; # 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')
@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 (/^\@end\s+(\w+)\b/) {
$end_tag = $1;
} elsif (/^\@(\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
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 eq 'table') {
$table_type = '';
} elsif ($tag eq 'ftable') {
$tag = 'table';
$table_type = 'f';
} elsif ($tag eq 'vtable') {
$tag = 'table';
$table_type = 'v';
}
# special cases
if ($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 ($tag eq 'table') {
if (/^\@[fv]?table\s+\@(\w+)\s*$/) {
$in_table = $1;
unshift(@tables, join($;, $table_type, $in_table));
push(@lines, &debug("<DL COMPACT>\n", __LINE__));
&html_push_if('DL');
push(@lines, &html_debug("\n", __LINE__));
} else {
warn "$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: $_";
}
next;
} elsif (defined($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 eq 'table' ||
$end_tag eq 'ftable' ||
$end_tag eq 'vtable') {
shift(@tables);
if (@tables) {
($table_type, $in_table) = split($;, $tables[0]);
} else {
$in_table = 0;
}
push(@lines, "</DL>\n");
&html_pop_if('DD');
&html_pop_if();
} elsif (defined($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></P>\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 (/^\@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 $what\n");
}
} else {
push(@lines, &debug("<LI>$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;
}
}