#! /usr/bin/perl -w
-# Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
+# Copyright (C) 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
-# This file is part of GNU CC.
+# This file is part of GCC.
-# GNU CC is free software; you can redistribute it and/or modify
+# GCC 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)
+# the Free Software Foundation; either version 3, or (at your option)
# any later version.
-# GNU CC is distributed in the hope that it will be useful,
+# GCC 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.
+# along with GCC; see the file COPYING. If not, write to
+# the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+# Boston MA 02110-1301, USA.
# This does trivial (and I mean _trivial_) conversion of Texinfo
# markup to Perl POD format. It's intended to be used to extract
@icstack = ();
@endwstack = ();
@skstack = ();
+@instack = ();
$shift = "";
%defs = ();
$fnno = 1;
+$inf = "";
+$ibase = "";
+@ipath = ();
while ($_ = shift) {
if (/^-D(.*)$/) {
die "flags may only contain letters, digits, hyphens, dashes and underscores\n"
unless $flag =~ /^[a-zA-Z0-9_-]+$/;
$defs{$flag} = $value;
+ } elsif (/^-I(.*)$/) {
+ if ($1 ne "") {
+ $flag = $1;
+ } else {
+ $flag = shift;
+ }
+ push (@ipath, $flag);
} elsif (/^-/) {
usage();
} else {
}
if (defined $in) {
- open(STDIN, $in) or die "opening \"$in\": $!\n";
+ $inf = gensym();
+ open($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(<STDIN>)
-{
+while(defined $inf) {
+while(<$inf>) {
# Certain commands are discarded without further processing.
/^\@(?:
[a-z]+index # @*index: useful only in complete manual
};
# handle variables
- /^\@set\s+([a-zA-Z0-9_-]+)\s*(.*)$/ and $defs{$1} = $2, next;
- /^\@clear\s+([a-zA-Z0-9_-]+)/ and delete $defs{$1}, next;
+ /^\@set\s+([a-zA-Z0-9_-]+)\s*(.*)$/ and do {
+ $defs{$1} = $2;
+ next;
+ };
+ /^\@clear\s+([a-zA-Z0-9_-]+)/ and do {
+ delete $defs{$1};
+ next;
+ };
next unless $output;
# 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 && $ended !~ /^(?:ifset|ifclear|ignore|menu|iftex)$/;
+ next if $skipping && $ended !~ /^(?:ifset|ifclear|ignore|menu|iftex|copying)$/;
die "\@end $ended without \@$ended at line $.\n" unless defined $endw;
die "\@$endw ended by \@end $ended at line $.\n" unless $ended eq $endw;
} elsif ($ended =~ /^(?:example|smallexample|display)$/) {
$shift = "";
$_ = ""; # need a paragraph break
- } elsif ($ended =~ /^(?:itemize|enumerate|table)$/) {
+ } elsif ($ended =~ /^(?:itemize|enumerate|[fv]?table)$/) {
$_ = "\n=back\n";
$ic = pop @icstack;
+ } elsif ($ended eq "multitable") {
+ $_ = "\n=back\n";
} else {
die "unknown command \@end $ended at line $.\n";
}
next;
};
- /^\@(ignore|menu|iftex)\b/ and do {
+ /^\@(ignore|menu|iftex|copying)\b/ and do {
push @endwstack, $endw;
push @skstack, $skipping;
$endw = $1;
s/\@\}/}/g;
s/\@\@/&at;/g;
- # Inside a verbatim block, handle @var specially.
+ # Inside a verbatim block, handle @var, @samp and @url specially.
if ($shift ne "") {
s/\@var\{([^\}]*)\}/<$1>/g;
+ s/\@samp\{([^\}]*)\}/"$1"/g;
+ s/\@url\{([^\}]*)\}/<$1>/g;
}
# POD doesn't interpret E<> inside a verbatim block.
# Single line command handlers.
- /^\@(?:section|unnumbered|unnumberedsec|center)\s+(.+)$/ and $_ = "\n=head2 $1\n";
- /^\@subsection\s+(.+)$/ and $_ = "\n=head3 $1\n";
+ /^\@include\s+(.+)$/ and do {
+ push @instack, $inf;
+ $inf = gensym();
+ $file = postprocess($1);
+
+ # Try cwd and $ibase, then explicit -I paths.
+ $done = 0;
+ foreach $path ("", $ibase, @ipath) {
+ $mypath = $file;
+ $mypath = $path . "/" . $mypath if ($path ne "");
+ open($inf, "<" . $mypath) and ($done = 1, last);
+ }
+ die "cannot find $file" if !$done;
+ next;
+ };
+
+ /^\@(?:section|unnumbered|unnumberedsec|center|heading)\s+(.+)$/
+ and $_ = "\n=head2 $1\n";
+ /^\@subsection\s+(.+)$/
+ and $_ = "\n=head3 $1\n";
+ /^\@subsubsection\s+(.+)$/
+ and $_ = "\n=head4 $1\n";
# Block command handlers:
- /^\@itemize\s+(\@[a-z]+|\*|-)/ and do {
+ /^\@itemize(?:\s+(\@[a-z]+|\*|-))?/ and do {
push @endwstack, $endw;
push @icstack, $ic;
- $ic = $1;
+ if (defined $1) {
+ $ic = $1;
+ } else {
+ $ic = '*';
+ }
$_ = "\n=over 4\n";
$endw = "itemize";
};
$endw = "enumerate";
};
- /^\@table\s+(\@[a-z]+)/ and do {
+ /^\@multitable\s.*/ and do {
+ push @endwstack, $endw;
+ $endw = "multitable";
+ $_ = "\n=over 4\n";
+ };
+
+ /^\@([fv]?table)\s+(\@[a-z]+)/ and do {
push @endwstack, $endw;
push @icstack, $ic;
- $ic = $1;
+ $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/;
+ $ic =~ s/\@(?:asis)//;
$_ = "\n=over 4\n";
- $endw = "table";
};
/^\@((?:small)?example|display)/ and do {
$_ = ""; # need a paragraph break
};
+ /^\@item\s+(.*\S)\s*$/ and $endw eq "multitable" and do {
+ @columns = ();
+ for $column (split (/\s*\@tab\s*/, $1)) {
+ # @strong{...} is used a @headitem work-alike
+ $column =~ s/^\@strong{(.*)}$/$1/;
+ push @columns, $column;
+ }
+ $_ = "\n=item ".join (" : ", @columns)."\n";
+ };
+
/^\@itemx?\s*(.+)?$/ and do {
if (defined $1) {
- # Entity escapes prevent munging by the <> processing below.
- $_ = "\n=item $ic\<$1\>\n";
+ if ($ic) {
+ if ($endw eq "enumerate") {
+ $_ = "\n=item $ic $1\n";
+ $ic =~ s/(\d+)/$1 + 1/eg;
+ } else {
+ # Entity escapes prevent munging by the <>
+ # processing below.
+ $_ = "\n=item $ic\<$1\>\n";
+ }
+ } else {
+ $_ = "\n=item $1\n";
+ }
} else {
$_ = "\n=item $ic\n";
$ic =~ y/A-Ya-y/B-Zb-z/;
$section .= $shift.$_."\n";
}
+# End of current file.
+close($inf);
+$inf = pop @instack;
+}
die "No filename or title\n" unless defined $fn && defined $tl;
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/\@(?: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;
+ # keep references of the form @ref{...}, print them bold
+ s/\@(?:ref)\{([^\}]*)\}/B<$1>/g;
+
+ # Change double single quotes to double quotes.
+ s/''/"/g;
+ s/``/"/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
s/\@gol//g;
s/\@\*\s*\n?//g;
+ # Anchors are thrown away
+ s/\@anchor\{(?:[^\}]*)\}//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\{([^\},]*),([^\},]*)\}/$2 (C<$1>)/g;
s/\@uref\{([^\},]*),([^\},]*),([^\},]*)\}/$3/g;
- # Turn B<blah I<blah> blah> into B<blah> I<blah> B<blah> to
- # match Texinfo semantics of @emph inside @samp. Also handle @r
- # inside bold.
+ # Handle gccoptlist here, so it can contain the above formatting
+ # commands.
+ s/\@gccoptlist\{([^\}]*)\}/B<$1>/g;
+
+ # Un-escape <> at this point.
s/</</g;
s/>/>/g;
- 1 while s/B<((?:[^<>]|I<[^<>]*>)*)R<([^>]*)>/B<$1>${2}B</g;
- 1 while (s/B<([^<>]*)I<([^>]+)>/B<$1>I<$2>B</g);
- 1 while (s/I<([^<>]*)B<([^>]+)>/I<$1>B<$2>I</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;
$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;
+ }
+}
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