1 files changed, 19 insertions, 0 deletions
diff --git a/lib/mbstring/u8cut.c b/lib/mbstring/u8cut.c
new file mode 100644
index 0000000..3dd9663
--- /dev/null
+++ b/lib/mbstring/u8cut.c
@@ -0,0 +1,19 @@
+#include "macros.h"
+#include "mbstring.h"
+
+rune
+u8cut(struct u8view *restrict x, struct u8view *restrict y, const rune *seps,
+      size_t n)
+{
+	ASSUME(y != nullptr);
+	ASSUME(seps != nullptr);
+	size_t off = u8cspn(*y, seps, n);
+	if (x != nullptr) {
+		x->p = y->p;
+		x->len = off;
+	}
+	VSHFT(y, off);
+	rune ch = MBEND;
+	u8next(&ch, y);
+	return ch;
+}