# /ruby/bin/ruby
# -*- Ruby -*-
#
# nmzgrep - search namazu-indexed documents for a given pattern and 
#           print lines matching the pattern.
# 
# $Id: nmzgrep.in,v 1.1 1999/12/19 04:19:58 satoru Exp $
#
# Copyright (C) 2001 Yasuhisa Kondo  All rights reserved.
# Original Copyright (C) 1999 Satoru Takabayashi  All rights reserved.
#     This is free software with ABSOLUTELY NO WARRANTY.
#
#  This program 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 versions 2, or (at your option)
#  any later version.
# 
#  This program 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 this program; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
#  02111-1307, USA
#

if ARGV.size == 0 then
	print "usage: nmzgrep [egrep's options] <pattern> [index]...\n"
	exit 1
end

opts = Array.new
while ARGV[0] != nil && ARGV[0] =~ /^-/
	opts.push(ARGV.shift)
end

if ARGV.size == 0 then
    print "usage: nmzgrep [egrep's options] <pattern> [index]...\n"
	exit 1
end

pattern = ARGV.shift
indices = ARGV

$, = ' '
command = "| namazu -alR #{pattern} #{indices.join} |\
           xargs egrep #{opts.join} #{pattern} /dev/null"

begin
	fh = open(command).read
	print fh, "\n"
rescue
	print "nmzgrep: #{$!}"
end

exit