ed

commit f718cb55dbe87958c85185e9721b11e004026ce1
parent d07cc6e6353a8a76e5fcf9e7a81e757d165bf383
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Thu, 10 Dec 2015 22:16:31 +0100

Protect RE delimiter insied of brackets

When a delimiter appears inside of brackets it is not
considered like delimiter, but an element of the
character sequence.

Diffstat:
M
ed.c
 | 
9
+++++++--

1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/ed.c b/ed.c
@@ -276,22 +276,27 @@ compile(int delim)
 {
 	static char regerrbuf[BUFSIZ];
 	char *bp, buff[REGEXSIZE];
-	int c ,ret;
+	int c ,ret, bracket = 0;
 
 	if (!isgraph(delim))
 		error("invalid pattern delimiter");
 	for (bp = buff; bp < &buff[BUFSIZ-1]; *bp++ = c) {
-		if ((c = input()) == delim)
+		if ((c = input()) == delim && !bracket)
 			break;
 		if (c == '\n' || c == EOF) {
 			back(c);
 			break;
 		}
+
 		if (c == '\\') {
 			if  (bp == &buff[BUFSIZ-2])
 				break;
 			*bp++ = c;
 			c = input();
+		} else if (c == '[') {
+			bracket = 1;
+		} else if (c == ']') {
+			bracket = 0;
 		}
 	}
 	if (bp == buff) {