[src/trunk]: src/bin/sh Add a couple of comments. NFC.

[kre <kre%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/6d3b8e41cca1
branches:  trunk
changeset: 448514:6d3b8e41cca1
user:      kre <kre%NetBSD.org@localhost>
date:      Mon Feb 04 09:56:48 2019 +0000

description:
Add a couple of comments.   NFC.

diffstat:

 bin/sh/syntax.c |  6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diffs (29 lines):

diff -r cdd790432f35 -r 6d3b8e41cca1 bin/sh/syntax.c
--- a/bin/sh/syntax.c   Mon Feb 04 09:56:26 2019 +0000
+++ b/bin/sh/syntax.c   Mon Feb 04 09:56:48 2019 +0000
@@ -1,7 +1,7 @@
-/*     $NetBSD: syntax.c,v 1.7 2018/12/03 06:40:26 kre Exp $   */
+/*     $NetBSD: syntax.c,v 1.8 2019/02/04 09:56:48 kre Exp $   */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: syntax.c,v 1.7 2018/12/03 06:40:26 kre Exp $");
+__RCSID("$NetBSD: syntax.c,v 1.8 2019/02/04 09:56:48 kre Exp $");
 
 #include <limits.h>
 #include "shell.h"
@@ -19,6 +19,7 @@
 /* syntax table used when not in quotes */
 const char basesyntax[258] = { CFAKE, CEOF,
     set_range(CTL_FIRST, CTL_LAST, CCTL)
+/* Note code assumes that only the above are CCTL in basesyntax */
     set('\n', CNL)
     set('\\', CBACK)
     set('\'', CSQUOTE)
@@ -61,6 +62,7 @@
 
 /* syntax table used when in single quotes */
 const char sqsyntax[258] = { CFAKE, CEOF,
+/* CCTL includes anything that might perhaps need to be escaped if quoted */
     set_range(CTL_FIRST, CTL_LAST, CCTL)
     set('\n', CNL)
     set('\'', CSQUOTE)