#!%PerlProg%
#
# printfield - extract and print named fields from maked input file
#
# usage: printfield config -f field1 [ -f field2 ] [files]
#
# Copyright (c) 1985 Corporation for Research and Educational Networking
# Copyright (c) 1988 University of Illinois Board of Trustees, Steven
#		Dorner, and Paul Pomes
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
#    must display the following acknowledgement:
#	This product includes software developed by the Corporation for
#	Research and Educational Networking (CREN), the University of
#	Illinois at Urbana, and their contributors.
# 4. Neither the name of CREN, the University nor the names of their
#    contributors may be used to endorse or promote products derived from
#    this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE TRUSTEES AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE TRUSTEES OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# @(#)$Id: printfield,v 1.2 1995/01/11 00:05:11 p-pomes Exp $

if ($#ARGV<0)
  {print STDERR "Usage: printfield config -f field1 [ -f field2 ] [files]\n";exit 1;}
 
#
# Load the field numbers
$cnum = $namenum = $nonum = $nicknum = -1;
$config=shift;
open (CONFIG,$config) || die "$config: $!\n";
while (<CONFIG>)
{
  chop;
  if (substr($_,0,1) eq "#") {next;}
  if (length==0) {next;}
  split(/:/);
  if (@_ < 2) {next;}
  $Fields{$_[0]} = $_[4];
}
@fids = sort(keys(%Fields));
close(CONFIG);

while (<>)
{
  if ((/^$namenum:/o || /\t$namenum:/o) && !/\t$nonum:/o && !/\t$nicknum:/o &&
      /\t$cnum:$Date/o)
  {
    chop;
    $line=$_;
    $firstname = $nickname = "";

    if (/\t$namenum:[^ 	][^ 	]*[ ]([^ 	]*).*/) {$firstname = $1;}
    if (/^$namenum:[^ 	][^ 	]*[ ]([^ 	]*).*/) {$firstname = $1;}
    $nickname = $nicks{$firstname};
    if ($nickname ne "") { print "$line\t$nicknum:$nickname\n"; }
    else { print "$line\n"; }
  }
  else { print $_; }
}