Only a single slash (/) is now necessary to repeat a search as per Theo's

request.  So the command:
/pattern/;/
finds the second line containing "pattern" after the current line.
Caveat: The commands `st' and `sr'  are now both legal and have very
different meanings.  This is because ed(1) extends POSIX to include the
old Berkeley syntax s[rgp]*.
(So should two slashes still be required in the case of the substitute
command, as SunOS ed does?)

1 files changed, 2 insertions, 5 deletions

diff --git a/bin/ed/re.c b/bin/ed/re.c
index 2bf1221..7553d5f 100644
--- a/bin/ed/re.c
+++ b/bin/ed/re.c
@@ -64,13 +64,10 @@ optpat()
 	char delim;
 	int n;
 
-	if ((delim = *ibufp) == '\n') {
-		if (!exp) sprintf(errmsg, "no previous pattern");
-		return exp;
-	} else if (delim == ' ' || *++ibufp == '\n') {
+	if ((delim = *ibufp) == ' ') {
 		sprintf(errmsg, "invalid pattern delimiter");
 		return NULL;
-	} else if (*ibufp == delim) {
+	} else if (delim == '\n' || *++ibufp == '\n' || *ibufp == delim) {
 		if (!exp) sprintf(errmsg, "no previous pattern");
 		return exp;
 	} else if ((exps = getlhs(delim)) == NULL)