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authordgp <dgp@users.sourceforge.net>2003-08-27 21:31:05 (GMT)
committerdgp <dgp@users.sourceforge.net>2003-08-27 21:31:05 (GMT)
commit4323e0f274bdfce2d3c219cd26c84783fb1902df (patch)
treef49b1c0bc67f643719a05d246ff956b87bf4ef8b /generic/tclUtil.c
parentc8cea779f14930d7be251801f4003224424f110d (diff)
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additional performance tweak to last commit.
Diffstat (limited to 'generic/tclUtil.c')
-rw-r--r--generic/tclUtil.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/generic/tclUtil.c b/generic/tclUtil.c
index d939496..4321833 100644
--- a/generic/tclUtil.c
+++ b/generic/tclUtil.c
@@ -11,7 +11,7 @@
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclUtil.c,v 1.41 2003/08/27 20:29:36 dgp Exp $
+ * RCS: @(#) $Id: tclUtil.c,v 1.42 2003/08/27 21:31:05 dgp Exp $
*/
#include "tclInt.h"
@@ -2038,13 +2038,24 @@ TclNeedSpace(start, end)
* backslash.
*/
+ if (*end > 0x20) {
+ /*
+ * Performance tweak. All ASCII spaces are <= 0x20. So get
+ * a quick answer for most characters before comparing against
+ * all spaces in the switch below.
+ *
+ * NOTE: Remove this if other Unicode spaces ever get accepted
+ * as list-element separators.
+ */
+ return 1;
+ }
switch (*end) {
case ' ':
- case '\f':
+ case '\t':
case '\n':
case '\r':
- case '\t':
case '\v':
+ case '\f':
if ((end == start) || (end[-1] != '\\')) {
return 0;
}