support for testing REG_STARTEND together with REG_NOTBOL

1 files changed, 4 insertions, 1 deletions

diff --git a/src/regress/lib/libc/regex/main.c b/src/regress/lib/libc/regex/main.c
index e0ed86f5e8..92257a7179 100644
--- a/src/regress/lib/libc/regex/main.c
+++ b/src/regress/lib/libc/regex/main.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: main.c,v 1.7 2007/09/12 19:32:35 otto Exp $   */
+/*      $OpenBSD: main.c,v 1.8 2016/05/26 13:33:53 schwarze Exp $       */
 /*      $NetBSD: main.c,v 1.2 1995/04/20 22:39:51 cgd Exp $     */
 
 #include <stdio.h>
@@ -260,6 +260,9 @@ int opts;			/* may not match f1 */
                         fprintf(stderr, "%d: bad STARTEND syntax\n", line);
                 subs[0].rm_so = strchr(f2, '(') - f2 + 1;
                 subs[0].rm_eo = strchr(f2, ')') - f2;
+                /* the preceding character is relevant with REG_NOTBOL */
+                f2copy[subs[0].rm_so - 1] = subs[0].rm_so > 1 ?
+                    f2copy[subs[0].rm_so - 2] : 'X';
         }
         err = regexec(&re, f2copy, NSUBS, subs, options('e', f1));