svn commit: r194192 - head/tools/tools/termcap

[Edwin Groothuis]

Author: edwin
Date: Sun Jun 14 13:46:32 2009
New Revision: 194192
URL: http://svn.freebsd.org/changeset/base/194192

Log:
  Instead of only being able to compare two terminal definitions, now
  also be able to print information about...
  
  - length of the terminal capabilties
  - dump of one terminal definition
  - relationship overview for a terminal definition

Modified:
  head/tools/tools/termcap/termcap.pl

Modified: head/tools/tools/termcap/termcap.pl
==============================================================================
--- head/tools/tools/termcap/termcap.pl	Sun Jun 14 13:43:07 2009	(r194191)
+++ head/tools/tools/termcap/termcap.pl	Sun Jun 14 13:46:32 2009	(r194192)
@@ -30,16 +30,29 @@
 use strict;
 use Data::Dumper;
 
-if ($#ARGV != 1) {
+if ($#ARGV < 0) {
 	print <<EOF;
-Usage: $0 <term1> <term2>
+Usage: $0 -c <term1> <term2>
 Compares the entries in the termcap.src for <term1> and <term2> and
 print the keys and definitions on the screen. This can be used to reduce
 the size of two similar termcap entries with the "tc" option.
+
+Usage: $0 -l [term]
+Show all lengths or the ones for terminals matching [term]
+
+Usage: $0 -p <term>
+Print all information about <term>
+
+Usage: $0 -r <term>
+Print all relations from and to <term>
 EOF
 	exit(0);
 }
 
+my $command = $ARGV[0];
+my $tca = $ARGV[1];
+my $tcb = $ARGV[2];
+
 open(FIN, "termcap.src");
 my @lines = <FIN>;
 chomp(@lines);
@@ -55,6 +68,8 @@ foreach my $l (@lines) {
 	$tc .= $l;
 	next if ($l =~ /\\$/);
 
+	$tc =~ s/:\\\s+:/:/g;
+
 	my @a = split(/:/, $tc);
 	next if ($#a < 0);
 	my @b = split(/\|/, $a[0]);
@@ -63,36 +78,88 @@ foreach my $l (@lines) {
 	} else {
 		$tcs{$a[0]} = $tc;
 	}
+	if (length($tc) - length($a[0]) > 1023) {
+		print "$a[0] has a length of ", length($tc) - length($a[0]), "\n";
+		exit(0);
+	}
 	$tc = "";
 }
 
-die "Cannot find definitions for $ARGV[0]" if (!defined $tcs{$ARGV[0]});
-die "Cannot find definitions for $ARGV[1]" if (!defined $tcs{$ARGV[1]});
-
 my %tc = ();
 my %keys = ();
+my %len = ();
+my %refs = ();
 
-for (my $i = 0; $i < 2; $i++) {
-	foreach my $tc (split(/:/, $tcs{$ARGV[$i]})) {
+for my $tcs (keys(%tcs)) {
+	$len{$tcs} = 0;
+	my $first = 0;
+	foreach my $tc (split(/:/, $tcs{$tcs})) {
+		if ($first++ == 0) {
+			foreach my $ref (split(/\|/, $tc)) {
+				$refs{$ref} = $tcs;
+			}
+			next;
+		}
 		next if ($tc =~ /^\\/);
-		$tc{$i}{$tc} = 0 if (!defined $tc{$i}{$tc});
-		$tc{$i}{$tc}++;
+		$tc{$tcs}{$tc} = 0 if (!defined $tc{$tcs}{$tc});
+		$tc{$tcs}{$tc}++;
+		$len{$tcs} += length($tc) + 1;
 		$keys{$tc} = 0;
 	}
 }
 
-foreach my $key (sort(keys(%keys))) {
-	if (length($key) > 15) {
-		print "$key\n";
-		printf("%-15s %-3s %-3s\n", "",
-		    defined $tc{0}{$key} ? "+" : "",
-		    defined $tc{1}{$key} ? "+" : ""
-		    );
-	} else {
-		printf("%-15s %-3s %-3s\n", $key,
-		    defined $tc{0}{$key} ? "+" : "",
-		    defined $tc{1}{$key} ? "+" : ""
-		    );
+$tca = $refs{$tca} if (defined $tca && defined $refs{$tca});
+$tcb = $refs{$tcb} if (defined $tcb && defined $refs{$tca});
+
+die "Cannot find definitions for $tca" if (defined $tca && !defined $tcs{$tca});
+die "Cannot find definitions for $tcb" if (defined $tcb && !defined $tcs{$tcb});
+
+if ($command eq "-c") {
+	foreach my $key (sort(keys(%keys))) {
+		next if (!defined $tc{$tca}{$key} && !defined $tc{$tcb}{$key});
+		printf("%-3s %-3s %s\n",
+		    defined $tc{$tca}{$key} ? "+" : "",
+		    defined $tc{$tcb}{$key} ? "+" : "",
+		    $key,
+		);
+	}
+
+	print "$len{$tca} - $len{$tcb}\n";
+}
+
+if ($command eq "-l") {
+	foreach my $tcs (sort(keys(%tcs))) {
+		next if (defined $tca && $tcs !~ /$tca/);
+		printf("%4d %s\n", $len{$tcs}, $tcs);
+	}
+}
+
+if ($command eq "-p") {
+	printf("%s (%d bytes)\n", $tca, $len{$tca});
+	foreach my $key (sort(keys(%keys))) {
+		next if (!defined $tc{$tca}{$key});
+		printf("%s\n", $key);
 	}
 }
 
+if ($command eq "-r") {
+	foreach my $key (keys(%{$tc{$tca}})) {
+		next if ($key !~ /^tc=/);
+		$key =~ s/tc=//;
+		print "Links to:\t$key\n";
+	}
+	my $first = 0;
+	foreach my $ref (sort(keys(%refs))) {
+		next if ($refs{$ref} ne $tca);
+		foreach my $tc (sort(keys(%tcs))) {
+			if (defined $tc{$tc}{"tc=$ref"}) {
+				if ($first++ == 0) {
+					print "Links from:\t";
+				} else {
+					print "\t\t";
+				}
+				print "$ref -> $tc\n";
+			}
+		}
+	}
+}