1 files changed, 20 insertions, 0 deletions
diff --git a/libcmap_find_in_no_block.c b/libcmap_find_in_no_block.c
new file mode 100644
index 0000000..216aaa0
--- /dev/null
+++ b/libcmap_find_in_no_block.c
@@ -0,0 +1,20 @@
+/* See LICENSE file for copyright and license details. */
+#include "libcmap.h"
+
+
+int
+libcmap_find_in_no_block(uint32_t codepoint, size_t *offset_out, size_t *subrange_out)
+{
+	size_t i, skipped = 0;
+	for (i = 0; i < libcmap_no_block.nranges; i++) {
+		if (libcmap_no_block.ranges[i].first <= codepoint && libcmap_no_block.ranges[i].last <= codepoint) {
+			if (offset_out)
+				*offset_out = skipped + (size_t)(codepoint - libcmap_no_block.ranges[i].first);
+			if (subrange_out)
+				*subrange_out = i;
+			return 1;
+		}
+		skipped += (size_t)(libcmap_no_block.ranges[i].last - libcmap_no_block.ranges[i].first) + 1U;
+	}
+	return 0;
+}