grep: make E and F flags mutually exclusive

Don't make F the priority flag when both E and F are given, instead use the last one.
2016-01-05 14:52:46 +01:00 · 2016-01-05 14:52:46 +01:00 · eeeb7a6e53
commit eeeb7a6e53
parent 16159a61ac
1 changed files with 3 additions and 0 deletions
--- a/grep.c
+++ b/grep.c
@ -183,10 +183,13 @@ main(int argc, char *argv[])
 	ARGBEGIN {
 	case 'E':
 		Eflag = 1;
+		Fflag = 0;
 		flags |= REG_EXTENDED;
 		break;
 	case 'F':
 		Fflag = 1;
+		Eflag = 0;
+		flags &= ~REG_EXTENDED;
 		break;
 	case 'H':
 		Hflag = 1;