From 8b923ba5e5bb37ea26350b4c1c688b8697706609 Mon Sep 17 00:00:00 2001
From: Thomas Voss <mail@thomasvoss.com>
Date: Sat, 4 May 2024 02:21:49 +0200
Subject: Add u8split()

---
 lib/mbstring/u8split.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 lib/mbstring/u8split.c

(limited to 'lib')

diff --git a/lib/mbstring/u8split.c b/lib/mbstring/u8split.c
new file mode 100644
index 0000000..5ee3bc0
--- /dev/null
+++ b/lib/mbstring/u8split.c
@@ -0,0 +1,16 @@
+#include "mbstring.h"
+
+struct u8view
+u8split(const char8_t **p, size_t *n, rune ch)
+{
+	struct u8view lhs = {.p = *p};
+	if ((*p = u8chr(*p, *n, ch)) == nullptr) {
+		lhs.len = *n;
+		*n = 0;
+	} else {
+		lhs.len = *p - lhs.p;
+		*n -= lhs.len;
+		u8next(nullptr, p, n);
+	}
+	return lhs;
+}
-- 
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