Regex: add a unit test for why lookaheads dont count for start chars anymore

1 files changed, 6 insertions, 0 deletions

diff --git a/src/regex_impl.cc b/src/regex_impl.cc
index f99fe5e0..e3b73df1 100644
--- a/src/regex_impl.cc
+++ b/src/regex_impl.cc
@@ -1265,6 +1265,12 @@ auto test_regex = UnitTest{[]{
     }
 
     {
+        TestVM<> vm{R"(.?(?=foo))"};
+        kak_assert(vm.exec("afoo", RegexExecFlags::Search));
+        kak_assert(*vm.captures()[0] == 'a');
+    }
+
+    {
         TestVM<> vm{R"((?i)(?=Foo))"};
         kak_assert(vm.exec("fOO", RegexExecFlags::Search));
         kak_assert(*vm.captures()[0] == 'f');