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-rw-r--r--vm.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/vm.c b/vm.c
index 8f4d44f..4f26d5c 100644
--- a/vm.c
+++ b/vm.c
@@ -296,16 +296,24 @@ static match_t *_match(grammar_t *g, file_t *f, const char *str, vm_op_t *op, un
match_t *m1 = _match(g, f, str, op->args.multiple.first, flags, rec);
if (m1 == NULL) return NULL;
- // <p1>==<p2> matches iff both have the same start and end point
- // <p1>!=<p2> matches iff <p1> matches, but is not equal to <p2>
- match_t *m2 = _match(g, f, str, op->args.multiple.second, flags, rec);
- if ((m2 == NULL || m2->end != m1->end) == (op->op == VM_EQUAL)) {
+ // <p1>==<p2> matches iff the text of <p1> matches <p2>
+ // <p1>!=<p2> matches iff the text of <p1> does not match <p2>
+ file_t inner = {
+ .filename=f->filename,
+ .contents=(char*)m1->start, .end=(char*)m1->end,
+ .lines=f->lines, // I think this works, but am not 100% sure
+ .length=(size_t)(m1->end - m1->start),
+ .nlines=1 + get_line_number(f, m1->end)-get_line_number(f, m1->start),
+ .mmapped=f->mmapped,
+ };
+ match_t *m2 = _match(g, &inner, str, op->args.multiple.second, flags, rec);
+ if ((m2 == NULL) == (op->op == VM_EQUAL)) {
destroy_match(&m1);
destroy_match(&m2);
return NULL;
}
match_t *m = calloc(sizeof(match_t), 1);
- m->start = str;
+ m->start = m1->start;
m->end = m1->end;
m->op = op;
m->child = m1;