fix ciksemel bug & speedup

src/iksemel.c

@@ -607,7 +607,7 @@ sax_core (iksparser *prs, char *buf, int len)
 {
 	enum ikserror err;
 	int pos = 0, old = 0, re, stack_old = -1;
-	unsigned char c;
+	register unsigned int c;
 
 	while (pos < len) {
 		re = 0;
@@ -699,9 +699,7 @@ sax_core (iksparser *prs, char *buf, int len)
 					stack_old = -1;
 					STACK_PUSH_END;
 					break;
-				}else{
-                switch(c){
-                case '\'':
+				}else if ('/' == c) {
 					if (IKS_CLOSE == prs->tagtype) return IKS_BADXML;
 					prs->tagtype = IKS_SINGLE;
 					prs->context = C_TAG_END;
@@ -709,7 +707,7 @@ sax_core (iksparser *prs, char *buf, int len)
 					stack_old = -1;
 					STACK_PUSH_END;
 					break;
-                case '>':
+				}else if ('>' == c) {
 					prs->context = C_TAG_END;
 					if (stack_old != -1) STACK_PUSH (buf + stack_old, pos - stack_old);
 					stack_old = -1;
@@ -717,7 +715,6 @@ sax_core (iksparser *prs, char *buf, int len)
 					re = 1;
 					break;
 				}
-				}
 				if (stack_old == -1) stack_old = pos;
 				break;
 
@@ -738,12 +735,11 @@ sax_core (iksparser *prs, char *buf, int len)
 				break;
 
 			case C_ATTRIBUTE:
-				switch(c){
-				case '/':
+				if ('/' == c) {
 					prs->tagtype = IKS_SINGLE;
 					prs->context = C_TAG_END;
 					break;
-				case '>':
+				}else if ('>' == c) {
 					prs->context = C_TAG_END;
 					re = 1;
 					break;
@@ -784,7 +780,6 @@ sax_core (iksparser *prs, char *buf, int len)
 				break;
 
 			case C_ATTRIBUTE_2:
-				switch(c){
 				if ('/' == c) {
 					prs->tagtype = IKS_SINGLE;
 					prs->atts[prs->attcur] = NULL;
@@ -1578,7 +1573,7 @@ static size_t
 escape_size (char *src, size_t len)
 {
 	size_t sz;
-	char c;
+	register int c;
 	int i;
 
 	sz = 0;
@@ -1607,7 +1602,7 @@ my_strcat (char *dest, char *src, size_t len)
 static char *
 escape (char *dest, char *src, size_t len)
 {
-	char c;
+	register int c;
 	int i;
 	int j = 0;