1 files changed, 61 insertions, 0 deletions
diff --git a/libcharconv_dentistry.c b/libcharconv_dentistry.c
new file mode 100644
index 0000000..e3f463e
--- /dev/null
+++ b/libcharconv_dentistry.c
@@ -0,0 +1,61 @@
+/* See LICENSE file for copyright and license details. */
+#include "lib-common.h"
+
+
+enum libcharconv_result
+libcharconv_dentistry(const char *s, size_t slen, size_t *n, uint_least32_t *cp, size_t *ncp)
+{
+	uint_least32_t c;
+	*n = 0;
+	for (; slen--; s++) {
+		switch (*s) {
+		case 'o':
+		case 'O': c = UINT32_C(0x23C0); goto conv;
+		case 'a':
+		case 'A': c = UINT32_C(0x23C3); goto conv;
+		case '~': c = UINT32_C(0x23C6); goto conv;
+		case 'l': c = UINT32_C(0x23BF); goto conv;
+		case 'j': c = UINT32_C(0x23CC); goto conv;
+		case 't': c = UINT32_C(0x23CA); goto conv;
+		case 'L': c = UINT32_C(0x23BE); goto conv;
+		case 'J': c = UINT32_C(0x23CB); goto conv;
+		case 'T': c = UINT32_C(0x23C9); goto conv;
+		case '-':
+		case '_':
+			if (!slen)
+				return LIBCHARCONV_INDETERMINATE;
+			if (s[1] != 'A' && s[1] != 'O' && s[1] != '~')
+				if (s[1] != 'a' && s[1] != 'o')
+					goto no_match;
+			c = (s[1] == 'A' || s[1] == 'a') ? UINT32_C(0x23C1) :
+			    (s[1] == 'O' || s[1] == 'o') ? UINT32_C(0x23C4) : UINT32_C(0x23C7);
+			if (s[0] == '_')
+				c += 1u;
+			goto conv2;
+		default:
+		no_match:
+			*n += 1u;
+			break;
+		}
+	}
+no_conv:
+	return LIBCHARCONV_NO_CONVERT;
+
+conv:
+	if (*n)
+		goto no_conv;
+	if (*ncp)
+		*cp = c;
+	*n += 1u;
+	*ncp = 1u;
+	return LIBCHARCONV_CONVERTED;
+
+conv2:
+	if (*n)
+		goto no_conv;
+	if (*ncp)
+		*cp = c;
+	*n += 2u;
+	*ncp = 1u;
+	return LIBCHARCONV_CONVERTED;
+}