commit 1b4f262aca1d67fdd1cea8ccbee09c03d23b1ab7
parent 449420e7e294e11aff835f638481fd7608778bc1
Author: tjg <tjg>
Date: Fri, 10 Dec 1999 11:54:46 +0000
Documentation: extra parentheses around `~' and `!' expressions are
forbidden. Tom Duff's paper is not distributed with rc, but is
available on the web.
Diffstat:
| M | rc.1 | | | 23 | +++++++++++++++++------ |
1 file changed, 17 insertions(+), 6 deletions(-)
diff --git a/rc.1 b/rc.1
@@ -161,7 +161,7 @@
.if !"\\$4"" .Xf \\$2 \\$1 "\\$3\\f\\$1\\$4\\*(Xi" "\\$5" "\\$6" "\\$7" "\\$8" "\\$9"
.if "\\$4"" \\$3\fR\s10
..
-.TH RC 1 "1999-11-11"
+.TH RC 1 "1999-12-10"
.SH NAME
rc \- shell
.SH SYNOPSIS
@@ -1971,6 +1971,17 @@ The
command should search
.Cr $path .
.PP
+Extra parentheses around a
+.Cr ~
+expression or a
+.Cr !
+expression are a syntax error. Thus, this
+code is illegal.
+.Ds
+.Cr "while ((~ $1 -*) && (! ~ $1 --)) { ..."
+.De
+The redundant inner parentheses must be omitted.
+.PP
Bug reports should be mailed to
.Cr "<tjg@star.le.ac.uk>" .
.SH INCOMPATIBILITIES
@@ -2049,10 +2060,10 @@ being sourced.
.SH "SEE ALSO"
``rc \(em A Shell for Plan 9 and UNIX Systems'',
Unix Research System,
-10th Edition,
-vol. 2. (Saunders College Publishing)
-(This paper is also distributed with this
-.I rc
-in PostScript form.)
+Tenth Edition,
+Volume 2. (Saunders College Publishing)
+.PP
+.Cr http://www.star.le.ac.uk/~tjg/rc/misc/td.html ,
+an updated version of the above paper.
.PP
.IR history (1)
