+++ /dev/null
-#! /usr/bin/perl -w
-
-# Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
-
-# This file is part of GNU CC.
-
-# GNU CC is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# GNU CC is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with GNU CC; see the file COPYING. If not, write to
-# the Free Software Foundation, 59 Temple Place - Suite 330,
-# Boston MA 02111-1307, USA.
-
-# This does trivial (and I mean _trivial_) conversion of Texinfo
-# markup to Perl POD format. It's intended to be used to extract
-# something suitable for a manpage from a Texinfo document.
-
-$output = 0;
-$skipping = 0;
-%sects = ();
-$section = "";
-@icstack = ();
-@endwstack = ();
-@skstack = ();
-@instack = ();
-$shift = "";
-%defs = ();
-$fnno = 1;
-$inf = "";
-$ibase = "";
-
-while ($_ = shift) {
- if (/^-D(.*)$/) {
- if ($1 ne "") {
- $flag = $1;
- } else {
- $flag = shift;
- }
- $value = "";
- ($flag, $value) = ($flag =~ /^([^=]+)(?:=(.+))?/);
- die "no flag specified for -D\n"
- unless $flag ne "";
- die "flags may only contain letters, digits, hyphens, dashes and underscores\n"
- unless $flag =~ /^[a-zA-Z0-9_-]+$/;
- $defs{$flag} = $value;
- } elsif (/^-/) {
- usage();
- } else {
- $in = $_, next unless defined $in;
- $out = $_, next unless defined $out;
- usage();
- }
-}
-
-if (defined $in) {
- $inf = gensym();
- open($inf, "<$in") or die "opening \"$in\": $!\n";
- $ibase = $1 if $in =~ m|^(.+)/[^/]+$|;
-} else {
- $inf = \*STDIN;
-}
-
-if (defined $out) {
- open(STDOUT, ">$out") or die "opening \"$out\": $!\n";
-}
-
-while(defined $inf) {
-while(<$inf>) {
- # Certain commands are discarded without further processing.
- /^\@(?:
- [a-z]+index # @*index: useful only in complete manual
- |need # @need: useful only in printed manual
- |(?:end\s+)?group # @group .. @end group: ditto
- |page # @page: ditto
- |node # @node: useful only in .info file
- |(?:end\s+)?ifnottex # @ifnottex .. @end ifnottex: use contents
- )\b/x and next;
-
- chomp;
-
- # Look for filename and title markers.
- /^\@setfilename\s+([^.]+)/ and $fn = $1, next;
- /^\@settitle\s+([^.]+)/ and $tl = postprocess($1), next;
-
- # Identify a man title but keep only the one we are interested in.
- /^\@c\s+man\s+title\s+([A-Za-z0-9-]+)\s+(.+)/ and do {
- if (exists $defs{$1}) {
- $fn = $1;
- $tl = postprocess($2);
- }
- next;
- };
-
- # Look for blocks surrounded by @c man begin SECTION ... @c man end.
- # This really oughta be @ifman ... @end ifman and the like, but such
- # would require rev'ing all other Texinfo translators.
- /^\@c\s+man\s+begin\s+([A-Z]+)\s+([A-Za-z0-9-]+)/ and do {
- $output = 1 if exists $defs{$2};
- $sect = $1;
- next;
- };
- /^\@c\s+man\s+begin\s+([A-Z]+)/ and $sect = $1, $output = 1, next;
- /^\@c\s+man\s+end/ and do {
- $sects{$sect} = "" unless exists $sects{$sect};
- $sects{$sect} .= postprocess($section);
- $section = "";
- $output = 0;
- next;
- };
-
- # handle variables
- /^\@set\s+([a-zA-Z0-9_-]+)\s*(.*)$/ and do {
- $defs{$1} = $2;
- next;
- };
- /^\@clear\s+([a-zA-Z0-9_-]+)/ and do {
- delete $defs{$1};
- next;
- };
-
- next unless $output;
-
- # Discard comments. (Can't do it above, because then we'd never see
- # @c man lines.)
- /^\@c\b/ and next;
-
- # End-block handler goes up here because it needs to operate even
- # if we are skipping.
- /^\@end\s+([a-z]+)/ and do {
- # Ignore @end foo, where foo is not an operation which may
- # cause us to skip, if we are presently skipping.
- my $ended = $1;
- next if $skipping && $ended !~ /^(?:ifset|ifclear|ignore|menu|iftex)$/;
-
- die "\@end $ended without \@$ended at line $.\n" unless defined $endw;
- die "\@$endw ended by \@end $ended at line $.\n" unless $ended eq $endw;
-
- $endw = pop @endwstack;
-
- if ($ended =~ /^(?:ifset|ifclear|ignore|menu|iftex)$/) {
- $skipping = pop @skstack;
- next;
- } elsif ($ended =~ /^(?:example|smallexample|display)$/) {
- $shift = "";
- $_ = ""; # need a paragraph break
- } elsif ($ended =~ /^(?:itemize|enumerate|[fv]?table)$/) {
- $_ = "\n=back\n";
- $ic = pop @icstack;
- } else {
- die "unknown command \@end $ended at line $.\n";
- }
- };
-
- # We must handle commands which can cause skipping even while we
- # are skipping, otherwise we will not process nested conditionals
- # correctly.
- /^\@ifset\s+([a-zA-Z0-9_-]+)/ and do {
- push @endwstack, $endw;
- push @skstack, $skipping;
- $endw = "ifset";
- $skipping = 1 unless exists $defs{$1};
- next;
- };
-
- /^\@ifclear\s+([a-zA-Z0-9_-]+)/ and do {
- push @endwstack, $endw;
- push @skstack, $skipping;
- $endw = "ifclear";
- $skipping = 1 if exists $defs{$1};
- next;
- };
-
- /^\@(ignore|menu|iftex)\b/ and do {
- push @endwstack, $endw;
- push @skstack, $skipping;
- $endw = $1;
- $skipping = 1;
- next;
- };
-
- next if $skipping;
-
- # Character entities. First the ones that can be replaced by raw text
- # or discarded outright:
- s/\@copyright\{\}/(c)/g;
- s/\@dots\{\}/.../g;
- s/\@enddots\{\}/..../g;
- s/\@([.!? ])/$1/g;
- s/\@[:-]//g;
- s/\@bullet(?:\{\})?/*/g;
- s/\@TeX\{\}/TeX/g;
- s/\@pounds\{\}/\#/g;
- s/\@minus(?:\{\})?/-/g;
- s/\\,/,/g;
-
- # Now the ones that have to be replaced by special escapes
- # (which will be turned back into text by unmunge())
- s/&/&/g;
- s/\@\{/{/g;
- s/\@\}/}/g;
- s/\@\@/&at;/g;
-
- # Inside a verbatim block, handle @var specially.
- if ($shift ne "") {
- s/\@var\{([^\}]*)\}/<$1>/g;
- }
-
- # POD doesn't interpret E<> inside a verbatim block.
- if ($shift eq "") {
- s/</</g;
- s/>/>/g;
- } else {
- s/</</g;
- s/>/>/g;
- }
-
- # Single line command handlers.
-
- /^\@include\s+(.+)$/ and do {
- push @instack, $inf;
- $inf = gensym();
-
- # Try cwd and $ibase.
- open($inf, "<" . $1)
- or open($inf, "<" . $ibase . "/" . $1)
- or die "cannot open $1 or $ibase/$1: $!\n";
- next;
- };
-
- /^\@(?:section|unnumbered|unnumberedsec|center)\s+(.+)$/
- and $_ = "\n=head2 $1\n";
- /^\@subsection\s+(.+)$/
- and $_ = "\n=head3 $1\n";
-
- # Block command handlers:
- /^\@itemize\s+(\@[a-z]+|\*|-)/ and do {
- push @endwstack, $endw;
- push @icstack, $ic;
- $ic = $1;
- $_ = "\n=over 4\n";
- $endw = "itemize";
- };
-
- /^\@enumerate(?:\s+([a-zA-Z0-9]+))?/ and do {
- push @endwstack, $endw;
- push @icstack, $ic;
- if (defined $1) {
- $ic = $1 . ".";
- } else {
- $ic = "1.";
- }
- $_ = "\n=over 4\n";
- $endw = "enumerate";
- };
-
- /^\@([fv]?table)\s+(\@[a-z]+)/ and do {
- push @endwstack, $endw;
- push @icstack, $ic;
- $endw = $1;
- $ic = $2;
- $ic =~ s/\@(?:samp|strong|key|gcctabopt|env)/B/;
- $ic =~ s/\@(?:code|kbd)/C/;
- $ic =~ s/\@(?:dfn|var|emph|cite|i)/I/;
- $ic =~ s/\@(?:file)/F/;
- $_ = "\n=over 4\n";
- };
-
- /^\@((?:small)?example|display)/ and do {
- push @endwstack, $endw;
- $endw = $1;
- $shift = "\t";
- $_ = ""; # need a paragraph break
- };
-
- /^\@itemx?\s*(.+)?$/ and do {
- if (defined $1) {
- # Entity escapes prevent munging by the <> processing below.
- $_ = "\n=item $ic\<$1\>\n";
- } else {
- $_ = "\n=item $ic\n";
- $ic =~ y/A-Ya-y/B-Zb-z/;
- $ic =~ s/(\d+)/$1 + 1/eg;
- }
- };
-
- $section .= $shift.$_."\n";
-}
-# End of current file.
-close($inf);
-$inf = pop @instack;
-}
-
-die "No filename or title\n" unless defined $fn && defined $tl;
-
-$sects{NAME} = "$fn \- $tl\n";
-$sects{FOOTNOTES} .= "=back\n" if exists $sects{FOOTNOTES};
-
-for $sect (qw(NAME SYNOPSIS DESCRIPTION OPTIONS ENVIRONMENT FILES
- BUGS NOTES FOOTNOTES SEEALSO AUTHOR COPYRIGHT)) {
- if(exists $sects{$sect}) {
- $head = $sect;
- $head =~ s/SEEALSO/SEE ALSO/;
- print "=head1 $head\n\n";
- print scalar unmunge ($sects{$sect});
- print "\n";
- }
-}
-
-sub usage
-{
- die "usage: $0 [-D toggle...] [infile [outfile]]\n";
-}
-
-sub postprocess
-{
- local $_ = $_[0];
-
- # @value{foo} is replaced by whatever 'foo' is defined as.
- while (m/(\@value\{([a-zA-Z0-9_-]+)\})/g) {
- if (! exists $defs{$2}) {
- print STDERR "Option $2 not defined\n";
- s/\Q$1\E//;
- } else {
- $value = $defs{$2};
- s/\Q$1\E/$value/;
- }
- }
-
- # Formatting commands.
- # Temporary escape for @r.
- s/\@r\{([^\}]*)\}/R<$1>/g;
- s/\@(?:dfn|var|emph|cite|i)\{([^\}]*)\}/I<$1>/g;
- s/\@(?:code|kbd)\{([^\}]*)\}/C<$1>/g;
- s/\@(?:gccoptlist|samp|strong|key|option|env|command|b)\{([^\}]*)\}/B<$1>/g;
- s/\@sc\{([^\}]*)\}/\U$1/g;
- s/\@file\{([^\}]*)\}/F<$1>/g;
- s/\@w\{([^\}]*)\}/S<$1>/g;
- s/\@(?:dmn|math)\{([^\}]*)\}/$1/g;
-
- # Cross references are thrown away, as are @noindent and @refill.
- # (@noindent is impossible in .pod, and @refill is unnecessary.)
- # @* is also impossible in .pod; we discard it and any newline that
- # follows it. Similarly, our macro @gol must be discarded.
-
- s/\(?\@xref\{(?:[^\}]*)\}(?:[^.<]|(?:<[^<>]*>))*\.\)?//g;
- s/\s+\(\@pxref\{(?:[^\}]*)\}\)//g;
- s/;\s+\@pxref\{(?:[^\}]*)\}//g;
- s/\@noindent\s*//g;
- s/\@refill//g;
- s/\@gol//g;
- s/\@\*\s*\n?//g;
-
- # @uref can take one, two, or three arguments, with different
- # semantics each time. @url and @email are just like @uref with
- # one argument, for our purposes.
- s/\@(?:uref|url|email)\{([^\},]*)\}/<B<$1>>/g;
- s/\@uref\{([^\},]*),([^\},]*)\}/$2 (C<$1>)/g;
- s/\@uref\{([^\},]*),([^\},]*),([^\},]*)\}/$3/g;
-
- # Un-escape <> at this point.
- s/</</g;
- s/>/>/g;
-
- # Now un-nest all B<>, I<>, R<>. Theoretically we could have
- # indefinitely deep nesting; in practice, one level suffices.
- 1 while s/([BIR])<([^<>]*)([BIR])<([^<>]*)>/$1<$2>$3<$4>$1</g;
-
- # Replace R<...> with bare ...; eliminate empty markup, B<>;
- # shift white space at the ends of [BI]<...> expressions outside
- # the expression.
- s/R<([^<>]*)>/$1/g;
- s/[BI]<>//g;
- s/([BI])<(\s+)([^>]+)>/$2$1<$3>/g;
- s/([BI])<([^>]+?)(\s+)>/$1<$2>$3/g;
-
- # Extract footnotes. This has to be done after all other
- # processing because otherwise the regexp will choke on formatting
- # inside @footnote.
- while (/\@footnote/g) {
- s/\@footnote\{([^\}]+)\}/[$fnno]/;
- add_footnote($1, $fnno);
- $fnno++;
- }
-
- return $_;
-}
-
-sub unmunge
-{
- # Replace escaped symbols with their equivalents.
- local $_ = $_[0];
-
- s/</E<lt>/g;
- s/>/E<gt>/g;
- s/{/\{/g;
- s/}/\}/g;
- s/&at;/\@/g;
- s/&/&/g;
- return $_;
-}
-
-sub add_footnote
-{
- unless (exists $sects{FOOTNOTES}) {
- $sects{FOOTNOTES} = "\n=over 4\n\n";
- }
-
- $sects{FOOTNOTES} .= "=item $fnno.\n\n"; $fnno++;
- $sects{FOOTNOTES} .= $_[0];
- $sects{FOOTNOTES} .= "\n\n";
-}
-
-# stolen from Symbol.pm
-{
- my $genseq = 0;
- sub gensym
- {
- my $name = "GEN" . $genseq++;
- my $ref = \*{$name};
- delete $::{$name};
- return $ref;
- }
-}
projects / binutils-gdb.git / commitdiff