Fix parsing of @{-1}@{1}

diff --git a/grep.c b/grep.c
index 13c18ff6529f437e6aea2671ab0003d4fd047ac7..49e93199658e6b9214839232b5b464b7d9e76a7f 100644 (file)
--- a/grep.c
+++ b/grep.c
@@ -239,6 +239,8 @@ static int word_char(char ch)
 static void show_line(struct grep_opt *opt, const char *bol, const char *eol,
                      const char *name, unsigned lno, char sign)
 {
+       if (opt->null_following_name)
+               sign = '\0';
        if (opt->pathname)
                printf("%s%c", name, sign);
        if (opt->linenum)
@@ -246,6 +248,11 @@ static void show_line(struct grep_opt *opt, const char *bol, const char *eol,
        printf("%.*s\n", (int)(eol-bol), bol);
 }
 
+static void show_name(struct grep_opt *opt, const char *name)
+{
+       printf("%s%c", name, opt->null_following_name ? '\0' : '\n');
+}
+
 static int fixmatch(const char *pattern, char *line, regmatch_t *match)
 {
        char *hit = strstr(line, pattern);
@@ -388,7 +395,7 @@ static int match_expr_eval(struct grep_opt *o,
                h |= match_expr_eval(o, x->u.binary.right, bol, eol, ctx, 1);
                break;
        default:
-               die("Unexpected node type (internal error) %d\n", x->node);
+               die("Unexpected node type (internal error) %d", x->node);
        }
        if (collect_hits)
                x->hit |= h;
@@ -489,7 +496,7 @@ static int grep_buffer_1(struct grep_opt *opt, const char *name,
                                return 1;
                        }
                        if (opt->name_only) {
-                               printf("%s\n", name);
+                               show_name(opt, name);
                                return 1;
                        }
                        /* Hit at this line.  If we haven't shown the
@@ -555,7 +562,7 @@ static int grep_buffer_1(struct grep_opt *opt, const char *name,
                return 0;
        if (opt->unmatch_name_only) {
                /* We did not see any hit, so we want to show this */
-               printf("%s\n", name);
+               show_name(opt, name);
                return 1;
        }
 
@@ -565,7 +572,8 @@ static int grep_buffer_1(struct grep_opt *opt, const char *name,
         * make it another option?  For now suppress them.
         */
        if (opt->count && count)
-               printf("%s:%u\n", name, count);
+               printf("%s%c%u\n", name,
+                      opt->null_following_name ? '\0' : ':', count);
        return !!last_hit;
 }