Support line- & column-based match locations

1 files changed, 22 insertions, 0 deletions

diff --git a/vendor/librune/lib/utf8/u8bspn.c b/vendor/librune/lib/utf8/u8bspn.c
new file mode 100644
index 0000000..3ccd469
--- /dev/null
+++ b/vendor/librune/lib/utf8/u8bspn.c
@@ -0,0 +1,22 @@
+#include "utf8.h"
+
+size_t
+u8bspn(const char8_t *s, size_t n, const rune *p, size_t m)
+{
+	rune ch;
+	size_t k = 0;
+
+	while (u8next(&ch, &s, &n)) {
+		for (size_t i = 0; i < m; i++) {
+			if (p[i] == ch) {
+				k += u8wdth(ch);
+				goto found;
+			}
+		}
+
+		break;
+found:;
+	}
+
+	return k;
+}