From 9fde950ff4a787e952fdc8432369eae1d313f1dc Mon Sep 17 00:00:00 2001
From: David Griffith <dave@661.org>
Date: Sun, 18 Nov 2012 19:07:09 -0800
Subject: [PATCH] nki2inf.pl for preparing nki files from upstream into a form
 Inform can digest.

---
 nki2inf.pl | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100755 nki2inf.pl

diff --git a/nki2inf.pl b/nki2inf.pl
new file mode 100755
index 0000000..5b9f3c0
--- /dev/null
+++ b/nki2inf.pl
@@ -0,0 +1,49 @@
+#!/usr/bin/perl -w
+
+# Usage: nk2inf.pl foobar.nki > nki.inf
+
+# The Z-machine wants all of a program's data to be in the executable 
+# file.  For the Inform edition of robotfindskitten, nki's are generated 
+# by a very long case statement.  This script emits that case statement 
+# and a constant defining MESSAGE_NUM to the number of NKIs found.  The 
+# result is then added to kitten.inf with an Include statement.
+#
+# This script automatically takes care of '`', '\', and '@' by replacing 
+# them with '@@126', '@@92', and '@@64' respectively.
+
+my $infile = $ARGV[0];
+my $count = 0;
+my $line;
+
+if (!$infile) { die "Usage: $0 foobar.nki > nki.inf\n"; }
+
+open (INFILE, "< $infile") || die "$0: Cannot open $infile\n";
+
+print "! The following code was automatically generated by nki2inf.pl\n";
+print "! Do not edit this file.\n";
+print "! Instead, edit your raw NKI list and run nki2inf.pl again.\n";
+print "!\n";
+print "! Because you can't directly use double quotes, backslashes,\n";
+print "! tildes, or atsigns in Inform, the following substitutions\n";
+print "! are used to generate those characters:\n";
+print "!    \"  -->   ~\n";
+print "!    ~  --> \@\@126\n";
+print "!    \\  --> \@\@92\n";
+print "!    \@  --> \@\@64\n\n";
+
+print "[ lookup_msg num;\n";
+print "\tswitch(num) {\n";
+
+while (<INFILE>) {
+	$count++;
+	next if /^\s*($|#|!)/;
+	chomp;
+	$line = $_;
+	$line =~ s/"/~/g;
+	$line =~ s/@/\@\@64/g;
+	$line =~ s/\\/\@\@92/g;
+	print "$count:\treturn \"$line\";\n";
+}
+print "default: return \"Unknown NKI (this should not happen)\";\n\t}\n];\n";
+print "Constant MESSAGE_NUM $count;\n";
+close (INFILE);
-- 
2.31.1