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OpMaxUntil zero-width protection

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Kangzhi Shi
2021-01-01 10:54:44 +02:00
parent 8c442f599b
commit 8fba935bba
1 changed files with 4 additions and 3 deletions
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7
interp.rs
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@@ -1107,6 +1107,7 @@ impl OpMaxUntil {
drive.ctx_mut().code_position = code_position;
let mincount = drive.peek_code(2) as usize;
let maxcount = drive.peek_code(3) as usize;
drive.state.string_position = drive.ctx().string_position;
self.count = count + 1;
if (self.count as usize) < mincount {
@@ -1123,8 +1124,8 @@ impl OpMaxUntil {
// we may have enough matches, if we can match another item, do so
drive.repeat_ctx_mut().count = self.count;
drive.state.marks_push();
// self.save_last_position = last_position;
// drive.repeat_ctx_mut().last_position = drive.state.string_position;
self.save_last_position = last_position;
drive.repeat_ctx_mut().last_position = drive.state.string_position;
drive.push_new_context(4);
self.jump_id = 2;
return Some(());
@@ -1143,7 +1144,7 @@ impl OpMaxUntil {
None
}
fn _2(&mut self, drive: &mut StackDrive) -> Option<()> {
// drive.repeat_ctx_mut().last_position = self.save_last_position;
drive.repeat_ctx_mut().last_position = self.save_last_position;
let child_ctx = drive.state.popped_context.unwrap();
if child_ctx.has_matched == Some(true) {
drive.state.marks_pop_discard();