Rework the directive parsing code. Instead of using a lot of strcmp()s

on every line that starts with a dot use a minimal perfect hash
function and a single strcmp() on the first word after the dot
to find out whether it is really a directive call and, if yes, which
one. Then directly dispatch to a handler function for that directive
(or fall through to the dependency handling code). This makes the
directive parse a little bit more strict about the syntax: the directive
word must be followed by a character that is not alphanumerical and not
an underline (making .undefFOO illegal); .endif and .else can only be
followed by comments.

1 files changed, 4 insertions, 1 deletions

diff --git a/usr.bin/make/for.h b/usr.bin/make/for.h
index c6404b2491af..052e1948a6bb 100644
--- a/usr.bin/make/for.h
+++ b/usr.bin/make/for.h
@@ -41,7 +41,10 @@
 #ifndef for_h_9d770f33
 #define	for_h_9d770f33
 
-int For_Eval(char *);
+#include "sprite.h"
+
+Boolean For_For(char *);
+Boolean For_Eval(char *);
 void For_Run(int);
 
 #endif /* for_h_9d770f33 */