Add enclosed

Signed-off-by: Mattias Andrée <m@maandree.se>

1 files changed, 52 insertions, 0 deletions

diff --git a/libcharconv_sans_serif.c b/libcharconv_sans_serif.c
index 152ce0c..787d14b 100644
--- a/libcharconv_sans_serif.c
+++ b/libcharconv_sans_serif.c
@@ -6,8 +6,10 @@ enum libcharconv_result
 libcharconv_sans_serif(const char *s, size_t slen, size_t *n, uint_least32_t *cp, size_t *ncp)
 {
 	uint_least32_t c;
+	size_t old_slen;
 	*n = 0;
 	for (; slen--; s++) {
+		old_slen = slen;
 		if ('A' <= *s && *s <= 'Z') {
 			c = (uint_least32_t)(UINT32_C(0x1D5A0) + (unsigned)(*s - 'A'));
 			goto conv;
@@ -17,13 +19,54 @@ libcharconv_sans_serif(const char *s, size_t slen, size_t *n, uint_least32_t *cp
 		} else if ('0' <= *s && *s <= '9') {
 			c = (uint_least32_t)(UINT32_C(0x1D7E2) + (unsigned)(*s - '0'));
 			goto conv;
+		} else if ((unsigned char)s[0] == 0xE2u) {
+			if (!slen--)
+				goto indeterminate;
+			if ((unsigned char)s[1] == 0x93u) {
+				if (!slen--)
+					goto indeterminate;
+				if ((unsigned char)s[2] == 0xAAu)
+					c = (uint_least32_t)UINT32_C(0x1F10B);
+				else if ((unsigned char)s[2] == 0xBFu)
+					c = (uint_least32_t)UINT32_C(0x1F10C);
+				else
+					goto no_match;
+				goto conv3;
+			} else if ((unsigned char)s[1] == 0x91u) {
+				if (!slen--)
+					goto indeterminate;
+				if (0xA0u <= (unsigned char)s[2] && (unsigned char)s[2] <= 0xA9u)
+					c = (uint_least32_t)UINT32_C(0x2780);
+				else
+					goto no_match;
+				c += (unsigned char)s[2] - 0xA0u;
+				goto conv3;
+			} else if ((unsigned char)s[1] == 0x9Du) {
+				if (!slen--)
+					goto indeterminate;
+				if (!slen--)
+					goto indeterminate;
+				if (0xB6u <= (unsigned char)s[2] && (unsigned char)s[2] <= 0xBFu)
+					c = (uint_least32_t)UINT32_C(0x278A);
+				else
+					goto no_match;
+				c += (unsigned char)s[2] - 0xB6u;
+				goto conv3;
+			} else {
+				goto no_match;
+			}
 		} else {
+		no_match:
+			slen = old_slen;
 			*n += 1u;
 		}
 	}
 no_conv:
 	return LIBCHARCONV_NO_CONVERT;
 
+indeterminate:
+	return LIBCHARCONV_INDETERMINATE;
+
 conv:
 	if (*n)
 		goto no_conv;
@@ -32,4 +75,13 @@ conv:
 	*n += 1u;
 	*ncp = 1u;
 	return LIBCHARCONV_CONVERTED;
+
+conv3:
+	if (*n)
+		goto no_conv;
+	if (*ncp)
+		*cp = c;
+	*n += 3u;
+	*ncp = 1u;
+	return LIBCHARCONV_CONVERTED;
 }