Support line- & column-based match locations

1 files changed, 14 insertions, 0 deletions

diff --git a/vendor/librune/lib/utf8/u8next.c b/vendor/librune/lib/utf8/u8next.c
new file mode 100644
index 0000000..8edc084
--- /dev/null
+++ b/vendor/librune/lib/utf8/u8next.c
@@ -0,0 +1,14 @@
+#include "utf8.h"
+
+#include "internal/common.h"
+
+const char8_t *
+u8next(rune *ch, const char8_t **s, size_t *n)
+{
+	int m;
+
+	if (*n == 0)
+		return nullptr;
+	*n -= m = u8tor_uc(ch, *s);
+	return *s += m;
+}