#!/usr/bin/perl
# IBM_PROLOG_BEGIN_TAG
# This is an automatically generated prolog.
#
# $Source: src/usr/diag/prdf/common/framework/rule/prdrpp $
#
# OpenPOWER HostBoot Project
#
# COPYRIGHT International Business Machines Corp. 2004,2014
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied. See the License for the specific language governing
# permissions and limitations under the License.
#
# IBM_PROLOG_END_TAG

use strict;

my @search_dirs = ();

foreach my $arg (@ARGV)
{
    if ($arg =~ m/-I/)
    {
        $arg =~ s/-I//;
        push @search_dirs, $arg;
    }
}
read_file(\*STDIN);

sub read_file
{
    my $file = shift;
    while (my $line = <$file>)
    {
        if ($line =~ m/^\.include.*\".*\".*/)
        {
            my $include = $line;
            chomp($include);
            $include =~ s/.*\"(.*)\".*/$1/;
            print ".included \"$include\"\n";
            open_file($include);
            print ".end_included\n";
        }
        elsif ( $line =~ m{/\*[^\*].*\*/} )
        {
            # Skip C-style (/* */) comments. This is needed to avoid prologs
            # added to the extra signature .H files.
        }
        else
        {
            print $line;
        }
    }
}

sub open_file
{
    my $filename = shift;
    foreach my $dir (@search_dirs)
    {
        my $fileDirName = "$dir/$filename";
        if (-e $fileDirName)
        {
            open FILE, "< $fileDirName" || die "Error opening $fileDirName";
            read_file(\*FILE);
            close FILE;
            return;
        }
    }
    print STDERR "prdrpp: $filename not found!\n";
}