added Log Parsing

[spider.git] / perl / DXLogPrint.pm

diff --git a/perl/DXLogPrint.pm b/perl/DXLogPrint.pm
new file mode 100644 (file)
index 0000000..fff39d1
--- /dev/null
+++ b/perl/DXLogPrint.pm
@@ -0,0 +1,108 @@
+#
+# Log Printing routines
+#
+# Copyright (c) - 1998 Dirk Koopman G1TLH
+#
+# $Id$
+#
+
+package DXLog;
+
+use FileHandle;
+use DXVars;
+use DXDebug ();
+use DXUtil;
+use DXLog;
+use Julian;
+use Carp;
+
+use strict;
+
+#
+# print some items from the log backwards in time
+#
+# This command outputs a list of n lines starting from time t with $pattern tags
+#
+sub print
+{
+       my $self = $DXLog::log;
+       my $from = shift;
+       my $to = shift;
+       my @date = $self->unixtoj(shift);
+       my $pattern = shift;
+       my $search;
+       my @in;
+       my @out;
+       my $eval;
+       my $count;
+           
+       $search = $pattern ? "\$ref->[1] =~ /$pattern/" : '1' ;
+       $eval = qq(
+                          my \$c;
+                          my \$ref;
+                          for (\$c = \$#in; \$c >= 0; \$c--) {
+                                       \$ref = \$in[\$c];
+                                       if ($search) {
+                                               \$count++;
+                                               next if \$count < $from;
+                                               push \@out, print_item(\$ref);
+                                               last LOOP if \$count >= \$to;                  # stop after n
+                                       }
+                               }
+                         );
+       
+       $self->close;                                      # close any open files
+
+       my $fh = $self->open(@date); 
+LOOP:
+       while ($count < $to) {
+               my @spots = ();
+               if ($fh) {
+                       while (<$fh>) {
+                               chomp;
+                               push @in, [ split '\^' ];
+                       }
+                       eval $eval;               # do the search on this file
+                       return ("Spot search error", $@) if $@;
+               }
+               $fh = $self->openprev();      # get the next file
+               last if !$fh;
+       }
+
+       return @out;
+}
+
+#
+# the standard log printing interpreting routine.
+#
+# every line that is printed should call this routine to be actually visualised
+#
+# Don't really know whether this is the correct place to put this stuff, but where
+# else is correct?
+#
+# I get a reference to an array of items
+#
+sub print_item
+{
+       my $r = shift;
+       my @ref = @$r;
+       my $d = atime($ref[0]);
+       my $s = 'undef';
+       
+       if ($ref[1] eq 'rcmd') {
+               if ($ref[2] eq 'in') {
+                       $s = "$ref[4] (priv: $ref[3]) rcmd: $ref[5]";
+               } else {
+                       $s = "$ref[3] reply: $ref[4]";
+               }
+       } elsif ($ref[1] eq 'talk') {
+               $s = "$ref[3] -> $ref[2] ($ref[4]) $ref[5]";
+       } elsif ($ref[1] eq 'ann') {
+               $s = "$ref[2] -> $ref[3] $ref[4]";
+       } else {
+               $s = "$ref[2]";
+       }
+       return "$d $s";
+}
+
+1;