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#! @AWK@ -f
#
# -*-awk-*-
#
# Copyright (C) 1998-2000 Thomas Roessler <roessler@guug.de>
# 2000-2025 Roland Rosenfeld <roland@spinnaker.de>
# 2007 Yaroslav Halchenko <debian@onerussian.com>
#
# 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 version 2 of the License, 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, see <https://www.gnu.org/licenses/>.
function print_line (line, lastdate, count)
{
if (line == "") return;
if (limitdate != "" && lastdate < limitdate && count < limitcount) return;
if (limitcount == 0)
print line;
else
print line FS count;
}
BEGIN {
# initialization
FS = "\t";
i = 0;
# default settings
keeporder = 0; # do not keep order by default
limitdate = "0000-00-00_00:00"; # keep all dates by default
limitcount = 0; # and do not limit by count by default
}
{
sub(/ +$/, "", $3); # strip trailing spaces (as of former bug)
line[$1] = ($1 FS $2 FS $3);
if (lastdate[$1] == "" || lastdate[$1] < $3)
lastdate[$1] = $3;
line[$1] = ($1 FS $2 FS lastdate[$1]);
if ($4 != "")
cnt[$1] += $4;
else
cnt[$1]++;
if (keeporder == 1)
{
pos[$1] = i;
idx[i++] = $1;
}
}
END {
if (keeporder == 1)
for (j = 0; j < i; j++) {
if (pos[idx[j]] == j) {
print_line(line[idx[j]], lastdate[idx[j]], cnt[idx[j]]);
}
}
else
for (a in line) {
print_line(line[a], lastdate[a], cnt[a]);
}
}
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