Cleanup, patch from Wayne Davison:

- xmlIO.h tree.h: made xmlNodeDump() and xmlNodeDumpOutput() public
- parser.[ch] nanohttp.c HTMLtree.c HTMLparser.c tree.c: applied and
  modified slightly Wayne Davison patch adding xmlStrcasecmp and
  related function, fixing xmlStrncmp(), and associated cleanup
- result/HTML/entities.html.sax: updating result
Daniel

parser.c

@@ -1014,10 +1014,10 @@ xmlStrcmp(const xmlChar *str1, const xmlChar *str2) {
     if (str1 == NULL) return(-1);
     if (str2 == NULL) return(1);
     do {
-        tmp = *str1++ - *str2++;
+        tmp = *str1++ - *str2;
 	if (tmp != 0) return(tmp);
-    } while ((*str1 != 0) && (*str2 != 0)); /* non input consuming */
-    return (*str1 - *str2);
+    } while (*str2++ != 0);
+    return 0;
 }
 
 /**
@@ -1036,16 +1036,99 @@ xmlStrncmp(const xmlChar *str1, const xmlChar *str2, int len) {
     register int tmp;
 
     if (len <= 0) return(0);
-    if ((str1 == NULL) && (str2 == NULL)) return(0);
+    if (str1 == str2) return(0);
     if (str1 == NULL) return(-1);
     if (str2 == NULL) return(1);
     do {
-        tmp = *str1++ - *str2++;
+        tmp = *str1++ - *str2;
+	if (tmp != 0 || --len == 0) return(tmp);
+    } while (*str2++ != 0);
+    return 0;
+}
+
+static xmlChar casemap[256] = {
+    0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,
+    0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,
+    0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,
+    0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F,
+    0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,
+    0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,
+    0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,
+    0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,
+    0x40,0x61,0x62,0x63,0x64,0x65,0x66,0x67,
+    0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
+    0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,
+    0x78,0x79,0x7A,0x7B,0x5C,0x5D,0x5E,0x5F,
+    0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,
+    0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
+    0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,
+    0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x7F,
+    0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,
+    0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,
+    0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,
+    0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,
+    0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,
+    0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,
+    0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,
+    0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF,
+    0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,
+    0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,
+    0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,
+    0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,
+    0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,
+    0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,
+    0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,
+    0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF
+};
+
+/**
+ * xmlStrcasecmp:
+ * @str1:  the first xmlChar *
+ * @str2:  the second xmlChar *
+ *
+ * a strcasecmp for xmlChar's
+ *
+ * Returns the integer result of the comparison
+ */
+
+int
+xmlStrcasecmp(const xmlChar *str1, const xmlChar *str2) {
+    register int tmp;
+
+    if (str1 == str2) return(0);
+    if (str1 == NULL) return(-1);
+    if (str2 == NULL) return(1);
+    do {
+	tmp = casemap[*str1++] - casemap[*str2];
 	if (tmp != 0) return(tmp);
-	len--;
-        if (len <= 0) return(0);
-    } while ((*str1 != 0) && (*str2 != 0)); /* non input consuming */
-    return (*str1 - *str2);
+    } while (*str2++ != 0);
+    return 0;
+}
+
+/**
+ * xmlStrncasecmp:
+ * @str1:  the first xmlChar *
+ * @str2:  the second xmlChar *
+ * @len:  the max comparison length
+ *
+ * a strncasecmp for xmlChar's
+ *
+ * Returns the integer result of the comparison
+ */
+
+int
+xmlStrncasecmp(const xmlChar *str1, const xmlChar *str2, int len) {
+    register int tmp;
+
+    if (len <= 0) return(0);
+    if (str1 == str2) return(0);
+    if (str1 == NULL) return(-1);
+    if (str2 == NULL) return(1);
+    do {
+	tmp = casemap[*str1++] - casemap[*str2];
+	if (tmp != 0 || --len == 0) return(tmp);
+    } while (*str2++ != 0);
+    return 0;
 }
 
 /**
@@ -1096,6 +1179,33 @@ xmlStrstr(const xmlChar *str, xmlChar *val) {
     return(NULL);
 }
 
+/**
+ * xmlStrcasestr:
+ * @str:  the xmlChar * array (haystack)
+ * @val:  the xmlChar to search (needle)
+ *
+ * a case-ignoring strstr for xmlChar's
+ *
+ * Returns the xmlChar * for the first occurence or NULL.
+ */
+
+const xmlChar *
+xmlStrcasestr(const xmlChar *str, xmlChar *val) {
+    int n;
+    
+    if (str == NULL) return(NULL);
+    if (val == NULL) return(NULL);
+    n = xmlStrlen(val);
+
+    if (n == 0) return(str);
+    while (*str != 0) { /* non input consuming */
+	if (casemap[*str] == casemap[*val])
+	    if (!xmlStrncasecmp(str, val, n)) return(str);
+	str++;
+    }
+    return(NULL);
+}
+
 /**
  * xmlStrsub:
  * @str:  the xmlChar * array (haystack)