From fac3008e77310bb206ce85169f01426fd2124dd9 Mon Sep 17 00:00:00 2001
From: Jack Jansen <jack.jansen@cwi.nl>
Date: Thu, 30 Sep 1999 11:19:16 +0000
Subject: Optimization: don't try to get a tabsize resource if we know the file
 doesn't have one (stdin and such), OpenRF appears to be an expensive call.

---
 Mac/Python/macguesstabsize.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Mac/Python/macguesstabsize.c b/Mac/Python/macguesstabsize.c
index 43af884..64a6ad7 100644
--- a/Mac/Python/macguesstabsize.c
+++ b/Mac/Python/macguesstabsize.c
@@ -45,6 +45,9 @@ guesstabsize(path)
 	int refnum;
 	Handle h;
 	int tabsize = 0;
+	
+	/* Very simple case: stdin (pathname empty) */
+	if ( path[0] == '\0' || strcmp(path, "<stdin>") == 0 ) return 0;
 	s[0] = strlen(path);
 	memcpy(s+1, path, s[0]);
 	refnum = OpenResFile(s);
-- 
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