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# classes.pl - A perl program to generate most of the contents of
# javaprims.h automatically.
# Copyright (C) 1998, 1999 Red Hat, Inc.
#
# This file is part of libjava.
#
# This software is copyrighted work licensed under the terms of the
# Libjava License. Please consult the file "LIBJAVA_LICENSE" for
# details.
# Usage: cd <top-srcdir> ; perl classes.pl.
# Can also be run from the `gcj' directory; this lets us
# more easily insert the output into javaprims.h (which is where it goes).
use DirHandle;
if (-d 'java')
{
# Ok here.
}
elsif (-d '../java')
{
chdir ('..');
}
else
{
die "couldn't find java directory\n";
}
&scan ('java', 2);
exit 0;
sub scan
{
local ($dir, $indent) = @_;
local (@subdirs) = ();
local (%classes) = ();
local ($d) = new DirHandle $dir;
local (*JFILE);
local ($name);
if (defined $d)
{
while (defined ($name = $d->read))
{
next if $name eq 'CVS';
next if $name eq '.';
next if $name eq '..';
if ($dir eq 'java'
&& $name ne 'lang'
&& $name ne 'util'
&& $name ne 'io')
{
# We only generate decls for java.lang, java.io, and
# java.util.
next;
}
if (-d ($dir . '/' . $name))
{
push (@subdirs, $name);
next;
}
next unless $name =~ /\.java$/;
open (FILE, "< $dir/$name");
while (<FILE>)
{
# NOTE: we don't skip `/*' comments.
s,//.*$,,;
# For now assume that class names start with upper
# case letter.
next unless /(class|interface) ([A-Z][A-Za-z0-9]+)/;
$classes{$2} = 1;
}
close (FILE);
}
undef $d;
}
local ($spaces) = ' ' x $indent;
local ($classname);
($classname = $dir) =~ s/^.*\///;
print $spaces, "namespace ", $classname, "\n";
print $spaces, "{\n";
foreach (sort keys %classes)
{
print $spaces, " class ", $_, ";\n";
}
print "\n" if scalar @classes > 0 && scalar @subdirs > 0;
local ($first) = 1;
foreach (sort @subdirs)
{
print "\n" unless $first;
$first = 0;
&scan ("$dir/$_", $indent + 2);
}
print $spaces, "}\n";
}
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