fixed problem with comments reported by Nick Kew added routines
* HTMLparser.c: fixed problem with comments reported by Nick Kew
* encoding.c: added routines xmlUTF8Size and xmlUTF8Charcmp for
some future cleanup of UTF8 handling
diff --git a/encoding.c b/encoding.c
index 8d43f45..5cefd39 100644
--- a/encoding.c
+++ b/encoding.c
@@ -85,6 +85,53 @@
************************************************************************/
/**
+ * xmlUTF8Size:
+ * @utf: pointer to the UTF8 character
+ *
+ * returns the numbers of bytes in the character, -1 on format error
+ */
+int
+xmlUTF8Size(const xmlChar *utf) {
+ xmlChar mask;
+ int len;
+
+ if (utf == NULL)
+ return -1;
+ if (*utf < 0x80)
+ return 1;
+ /* check valid UTF8 character */
+ if (!(*utf & 0x40))
+ return -1;
+ /* determine number of bytes in char */
+ len = 2;
+ for (mask=0x20; mask != 0; mask>>=1) {
+ if (!(*utf & mask))
+ return len;
+ len++;
+ }
+ return -1;
+}
+
+/**
+ * xmlUTF8Charcmp
+ * @utf1: pointer to first UTF8 char
+ * @utf2: pointer to second UTF8 char
+ *
+ * returns result of comparing the two UCS4 values
+ * as with xmlStrncmp
+ */
+int
+xmlUTF8Charcmp(const xmlChar *utf1, const xmlChar *utf2) {
+
+ if (utf1 == NULL ) {
+ if (utf2 == NULL)
+ return 0;
+ return -1;
+ }
+ return xmlStrncmp(utf1, utf2, xsltUTF8Size(utf1));
+}
+
+/**
* xmlUTF8Strlen:
* @utf: a sequence of UTF-8 encoded bytes
*