Author: jilles
Date: Fri May 6 20:45:50 2011
New Revision: 221551
URL: http://svn.freebsd.org/changeset/base/221551
Log:
sh: Change the CTL* bytes to ones invalid in UTF-8.
This ensures that mbrtowc(3) can be used directly once it has been verified
that there is no CTL* byte. Dealing with a CTLESC byte within a multibyte
character would be complicated.
The new values do occur in iso-8859-* encodings. This decreases efficiency
slightly but should not affect correctness.
Caveat: Updating across this change and rebuilding without cleaning may
yield a subtly broken sh binary. By default, make buildworld will clean and
avoid problems.
Modified:
head/bin/sh/parser.h
Modified: head/bin/sh/parser.h
==============================================================================
--- head/bin/sh/parser.h Fri May 6 20:43:02 2011 (r221550)
+++ head/bin/sh/parser.h Fri May 6 20:45:50 2011 (r221551)
@@ -34,16 +34,16 @@
*/
/* control characters in argument strings */
-#define CTLESC '\201'
-#define CTLVAR '\202'
-#define CTLENDVAR '\203'
-#define CTLBACKQ '\204'
+#define CTLESC '\300'
+#define CTLVAR '\301'
+#define CTLENDVAR '\371'
+#define CTLBACKQ '\372'
#define CTLQUOTE 01 /* ored with CTLBACKQ code if in quotes */
/* CTLBACKQ | CTLQUOTE == '\205' */
-#define CTLARI '\206'
-#define CTLENDARI '\207'
-#define CTLQUOTEMARK '\210'
-#define CTLQUOTEEND '\211' /* only for ${v+-...} */
+#define CTLARI '\374'
+#define CTLENDARI '\375'
+#define CTLQUOTEMARK '\376'
+#define CTLQUOTEEND '\377' /* only for ${v+-...} */
/* variable substitution byte (follows CTLVAR) */
#define VSTYPE 0x0f /* type of variable substitution */
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