1 files changed, 62 insertions, 0 deletions
diff --git a/libcharconv_lydian.c b/libcharconv_lydian.c
new file mode 100644
index 0000000..a3427fa
--- /dev/null
+++ b/libcharconv_lydian.c
@@ -0,0 +1,62 @@
+/* See LICENSE file for copyright and license details. */
+#include "lib-common.h"
+
+
+static struct {
+	unsigned char cp_low;
+	char latin;
+} lydian[] = {
+	{0x20, 'a'},
+	{0x21, 'b'},
+	{0x39, 'c'},
+	{0x23, 'd'},
+	{0x24, 'e'},
+	{0x31, 'f'},
+	{0x22, 'g'},
+	{0x26, 'i'},
+	{0x28, 'k'},
+	{0x29, 'l'},
+	{0x2A, 'm'},
+	{0x2B, 'n'},
+	{0x2C, 'o'},
+	{0x32, 'q'},
+	{0x2D, 'r'},
+	{0x33, 's'},
+	{0x2F, 't'},
+	{0x30, 'u'},
+	{0x25, 'v'},
+	{0x27, 'y'},
+	{0x35, 'A'},
+	{0x36, 'E'},
+	{0x37, 'L'},
+	{0x38, 'N'},
+	{0x2E, 'S'},
+	{0x34, 'T'},
+	{0x3F, '\"'},
+	{0x3F, '\''}
+};
+
+
+enum libcharconv_result
+libcharconv_lydian(const char *s, size_t slen, size_t *n, uint_least32_t *cp, size_t *ncp)
+{
+	size_t i;
+	*n = 0;
+	for (; slen--; s++) {
+		for (i = 0u; i < sizeof(lydian) / sizeof(*lydian); i++)
+			if (*s == lydian[i].latin)
+				goto conv;
+		*n += 1u;
+	}
+no_conv:
+	return LIBCHARCONV_NO_CONVERT;
+
+conv:
+	if (*n)
+		goto no_conv;
+	if (*ncp)
+		*cp = (uint_least32_t)(UINT32_C(0x10900) | lydian[i].cp_low);
+	*n += 1u;
+	*ncp = 1u;
+	return LIBCHARCONV_CONVERTED;
+}