serdi-langtag-case-with-normalization.diff

Index: src/reader.c
===================================================================
--- src/reader.c	(revision 505)
+++ src/reader.c	(working copy)
@@ -760,14 +760,24 @@
 		return r_err(reader, SERD_ERR_BAD_SYNTAX, "unexpected `%c'\n", c);
 	}
 	Ref ref = push_node(reader, SERD_LITERAL, "", 0);
-	push_byte(reader, ref, eat_byte_safe(reader, c));
-	while ((c = peek_byte(reader)) && in_range(c, 'a', 'z')) {
-		push_byte(reader, ref, eat_byte_safe(reader, c));
+	push_byte(reader, ref, eat_byte_safe(reader, c) | 0x60);
+	while ((c = peek_byte(reader))) {
+		if (in_range(c, 'a', 'z'))
+			push_byte(reader, ref, eat_byte_safe(reader, c));
+		else if (in_range(c, 'A', 'Z'))
+			push_byte(reader, ref, eat_byte_safe(reader, c) | 0x60);
+		else
+			break;
 	}
 	while (peek_byte(reader) == '-') {
 		push_byte(reader, ref, eat_byte_safe(reader, '-'));
-		while ((c = peek_byte(reader)) && (is_alpha(c) || is_digit(c))) {
-			push_byte(reader, ref, eat_byte_safe(reader, c));
+		while ((c = peek_byte(reader))) {
+			if (is_digit(c) || in_range(c, 'a', 'z'))
+				push_byte(reader, ref, eat_byte_safe(reader, c));
+			else if (in_range(c, 'A', 'Z'))
+				push_byte(reader, ref, eat_byte_safe(reader, c) | 0x60);
+			else
+				break;
 		}
 	}
 	return ref;

serdi-langtag-case.diff

Index: src/reader.c
===================================================================
--- src/reader.c	(revision 505)
+++ src/reader.c	(working copy)
@@ -761,7 +761,7 @@
 	}
 	Ref ref = push_node(reader, SERD_LITERAL, "", 0);
 	push_byte(reader, ref, eat_byte_safe(reader, c));
-	while ((c = peek_byte(reader)) && in_range(c, 'a', 'z')) {
+	while ((c = peek_byte(reader)) && is_alpha(c)) {
 		push_byte(reader, ref, eat_byte_safe(reader, c));
 	}
 	while (peek_byte(reader) == '-') {