X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=examples%2Fmk2knr.pl;h=1259b8436cd622462634830941f68ea471acd61e;hb=83bcba26c01d945d1964d6d5de715a2356a858cf;hp=29f94a1880fd40af7cf0c41d66aa5f174ccf6087;hpb=bac75ac2d5f859d357820e10100efa07a6bd22cd;p=oweals%2Fbusybox.git

diff --git a/examples/mk2knr.pl b/examples/mk2knr.pl
index 29f94a188..1259b8436 100755
--- a/examples/mk2knr.pl
+++ b/examples/mk2knr.pl
@@ -3,7 +3,7 @@
 # @(#) mk2knr.pl - generates a perl script that converts lexemes to K&R-style
 #
 # How to use this script:
-#  - In the busybox directory type 'scripts/mk2knr.pl files-you-want-to-convert'
+#  - In the busybox directory type 'examples/mk2knr.pl files-to-convert'
 #  - Review the 'convertme.pl' script generated and remove / edit any of the
 #    substitutions in there (please especially check for false positives)
 #  - Type './convertme.pl same-files-as-before'
@@ -19,6 +19,8 @@ $convertme = 'convertme.pl';
 $convert = 0;
 %converted = ();
 
+# if no files were specified, print usage
+die "usage: $0 file.c | file.h\n" if scalar(@ARGV) == 0;
 
 # prepare the "convert me" file
 open(CM, ">$convertme") or die "convertme.pl $!";
@@ -29,7 +31,7 @@ while (<>) {
 
 	# if the line says "getopt" in it anywhere, we don't want to muck with it
 	# because option lists tend to include strings like "cxtzvOf:" which get
-	# matched by the javaStyle / Hungarian and PascalStyle regexps below
+	# matched by the "check for mixed case" regexps below
 	next if /getopt/;
 
 	# tokenize the string into just the variables
@@ -45,6 +47,9 @@ while (<>) {
 		# this checks for PascalStyle
 		$convert++ if ($var =~ /^[A-Z][a-z]+[A-Z][a-z]+/);
 
+		# if we want to add more checks, we can add 'em here, but the above
+		# checks catch "just enough" and not too much, so prolly not.
+
 		if ($convert) {
 			$convert = 0;
 
@@ -74,3 +79,6 @@ while (<>) {
 close(CM);
 chmod 0755, $convertme;
 
+# print a helpful help message
+print "Done. Scheduled name changes are in $convertme.\n";
+print "Please review/modify it and then type ./$convertme to do the search & replace.\n";