diff options
Diffstat (limited to 'grep.c')
| -rw-r--r-- | grep.c | 19 |
1 files changed, 19 insertions, 0 deletions
@@ -476,6 +476,22 @@ static struct grep_expr *prep_header_patterns(struct grep_opt *opt) return header_expr; } +static struct grep_expr *grep_splice_or(struct grep_expr *x, struct grep_expr *y) +{ + struct grep_expr *z = x; + + while (x) { + assert(x->node == GREP_NODE_OR); + if (x->u.binary.right && + x->u.binary.right->node == GREP_NODE_TRUE) { + x->u.binary.right = y; + break; + } + x = x->u.binary.right; + } + return z; +} + static void compile_grep_patterns_real(struct grep_opt *opt) { struct grep_pat *p; @@ -510,6 +526,9 @@ static void compile_grep_patterns_real(struct grep_opt *opt) if (!opt->pattern_expression) opt->pattern_expression = header_expr; + else if (opt->all_match) + opt->pattern_expression = grep_splice_or(header_expr, + opt->pattern_expression); else opt->pattern_expression = grep_or_expr(opt->pattern_expression, header_expr); |