: # *-*-perl-*-* eval 'exec perl -S $0 "$@"' if $running_under_some_shell; # # NewsArticle.sum - Summarizes a USENET article # # NewsArticle.sum,v 1.5 1995/11/07 01:34:38 duane Exp # ###################################################################### # Copyright (c) 1994, 1995. All rights reserved. # # The Harvest software was developed by the Internet Research Task # Force Research Group on Resource Discovery (IRTF-RD): # # Mic Bowman of Transarc Corporation. # Peter Danzig of the University of Southern California. # Darren R. Hardy of the University of Colorado at Boulder. # Udi Manber of the University of Arizona. # Michael F. Schwartz of the University of Colorado at Boulder. # Duane Wessels of the University of Colorado at Boulder. # # This copyright notice applies to software in the Harvest # ``src/'' directory only. Users should consult the individual # copyright notices in the ``components/'' subdirectories for # copyright information about other software bundled with the # Harvest source code distribution. # # TERMS OF USE # # The Harvest software may be used and re-distributed without # charge, provided that the software origin and research team are # cited in any use of the system. Most commonly this is # accomplished by including a link to the Harvest Home Page # (http://harvest.cs.colorado.edu/) from the query page of any # Broker you deploy, as well as in the query result pages. These # links are generated automatically by the standard Broker # software distribution. # # The Harvest software is provided ``as is'', without express or # implied warranty, and with no support nor obligation to assist # in its use, correction, modification or enhancement. We assume # no liability with respect to the infringement of copyrights, # trade secrets, or any patents, and are not responsible for # consequential damages. Proper use of the Harvest software is # entirely the responsibility of the user. # # DERIVATIVE WORKS # # Users may make derivative works from the Harvest software, subject # to the following constraints: # # - You must include the above copyright notice and these # accompanying paragraphs in all forms of derivative works, # and any documentation and other materials related to such # distribution and use acknowledge that the software was # developed at the above institutions. # # - You must notify IRTF-RD regarding your distribution of # the derivative work. # # - You must clearly notify users that your are distributing # a modified version and not the original Harvest software. # # - Any derivative product is also subject to these copyright # and use restrictions. # # Note that the Harvest software is NOT in the public domain. We # retain copyright, as specified above. # # HISTORY OF FREE SOFTWARE STATUS # # Originally we required sites to license the software in cases # where they were going to build commercial products/services # around Harvest. In June 1995 we changed this policy. We now # allow people to use the core Harvest software (the code found in # the Harvest ``src/'' directory) for free. We made this change # in the interest of encouraging the widest possible deployment of # the technology. The Harvest software is really a reference # implementation of a set of protocols and formats, some of which # we intend to standardize. We encourage commercial # re-implementations of code complying to this set of standards. # # $TTL = 86400 * 14; # 2 weeks $len = length($TTL); print "Time-to-Live\{$len\}:\t$TTL\n"; $file = shift(@ARGV); open(IN, "<$file") || die "NewsArticle.sum: Cannot read $file.\n"; # Read the header $att = ""; while () { s/\r//g; # strip CR last if (/^\s*$/o); # end of the header if (/^\t/o && $att ne "") { chop $_; $SOIF{$att} .= "\n$_"; next; } $i = index ($_, ":"); next if ($i == $[-1); $att = substr ($_, 0, $i); $val = substr ($_, $i+2); chop $val; $SOIF{$att} = $val; } # Text summarize the body $| = 1; open(TEXTSUM, "| Text.sum") || die "NewsArticle.sum: Cannot run Text summarizer.\n"; print TEXTSUM ; close(TEXTSUM); close(IN); $SOIF{'Description'} = $SOIF{'Subject'} if (defined($SOIF{'Subject'})); $SOIF{'Description'} = $SOIF{'Summary'} if (defined($SOIF{'Summary'})); while (($k, $v) = each %SOIF) { next if ($k eq "Path"); next if ($k =~ /^X-/o); next if ($k =~ /[ \t]/o); # don't output atts with whitespace $len = length($v); next if ($len < 1); print "$k\{$len\}:\t$v\n"; } exit 0; # END OF PROGRAM