#!/usr/bin/perl
#+##############################################################################
# #
# File: texi2html #
# #
# Description: Program to transform most Texinfo documents to HTML #
# #
#-##############################################################################
# @(#)texi2html 1.52 01/05/98 Written (mainly) by Lionel Cons, Lionel.Cons@cern.ch
# 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 1.52"; # 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+
" ", " ",
"\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', '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,
# 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,
'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'}++;
} 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'} = '1.52'; # 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 (/^\@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)? .*/$1/;
# non-@ substitutions cf. texinfmt.el
unless ($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 (/^\@(|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: $_";
}
next;
} elsif (defined($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></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 $what\n");
}
} elsif ($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");
$_ = &debug("</P>\n", __LINE__);
&html_pop;
}
} elsif ($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}$after";
}
}
#
# try to guess bibliography references or glossary terms
#
unless (/^<H\d><A NAME=\"SEC\d/) {
if ($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;
<!-- This HTML file has been 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) = @_;
$level--; # here we start at 0
if ($name =~ /^appendix/) {
# appendix style
if ( @appendix_sec_num ) {
&incr_sec_num($level, @appendix_sec_num);
} else {
@appendix_sec_num = ('A', 0, 0, 0);
}
return(join('.', @appendix_sec_num[0..$level]));
} else {
# normal style
if ( @normal_sec_num ) {
&incr_sec_num($level, @normal_sec_num);
} else {
@normal_sec_num = (1, 0, 0, 0);
}
return(join('.', @normal_sec_num[0..$level]));
}
}
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, $isdst);
@MoY = ('January', 'Febuary', 'March', 'April', 'May', 'June',
'July', 'August', 'September', 'October', 'November', 'December');
($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 $TODAY using the
<A HREF=\"$HOMEPAGE\">texi2html</A>
translator version 1.52.</P>
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};
}
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