Update texi2pod.pl.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3964 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2008-02-04 14:47:49 +00:00
parent 5ff9d6a469
commit 3aba3d86f7

View File

@ -1,23 +1,23 @@
#! /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)
# 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
@ -36,6 +36,7 @@ $shift = "";
$fnno = 1;
$inf = "";
$ibase = "";
@ipath = ();
while ($_ = shift) {
if (/^-D(.*)$/) {
@ -51,6 +52,13 @@ while ($_ = shift) {
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, $flag);
} elsif (/^-/) {
usage();
} else {
@ -138,7 +146,7 @@ while(<$inf>) {
# 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 $endw;
@ -154,6 +162,8 @@ while(<$inf>) {
} 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 $.\n";
}
@ -178,7 +188,7 @@ while(<$inf>) {
next;
};
/^\@(ignore|menu|iftex)\b/ and do {
/^\@(ignore|menu|iftex|copying)\b/ and do {
push @endwstack, $endw;
push @skstack, $skipping;
$endw = $1;
@ -227,11 +237,16 @@ while(<$inf>) {
/^\@include\s+(.+)$/ and do {
push @instack, $inf;
$inf = gensym();
$file = postprocess($1);
# Try cwd and $ibase.
open($inf, "<" . $1)
or open($inf, "<" . $ibase . "/" . $1)
or die "cannot open $1 or $ibase/$1: $!\n";
# 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;
};
@ -239,12 +254,18 @@ while(<$inf>) {
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";
$endw = "itemize";
};
@ -261,6 +282,12 @@ while(<$inf>) {
$endw = "enumerate";
};
/^\@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, $ic;
@ -280,10 +307,19 @@ while(<$inf>) {
$_ = ""; # need a paragraph break
};
/^\@item\s+(.*\S)\s*$/ 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 $1) {
# Entity escapes prevent munging by the <> processing below.
# print "$ic\n";
$_ = "\n=item $ic\&LT;$1\&GT;\n";
} else {
$_ = "\n=item $ic\n";
@ -346,6 +382,13 @@ sub postprocess
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
@ -359,6 +402,9 @@ sub postprocess
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.
@ -366,14 +412,18 @@ sub postprocess
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.
# Un-escape <> at this point.
s/&LT;/</g;
s/&GT;/>/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;