Use is_ws() in two more places where appropriate.

Author: sobomax

trim.h

@@ -47,17 +47,7 @@
  * define characters that should be skipped
  * here.
  */
-#define TRIM_SWITCH(c) switch(c) {     \
-                       case ' ':       \
-                       case '\t':      \
-                       case '\r':      \
-                       case '\n':      \
-                               break;  \
-                                       \
-                       default:        \
-                               return; \
-                       }
-
+#define TRIM_SWITCH(c) {if (!is_ws(c)) return;}
 
 /*! \brief
  * Remove any leading whitechars, like spaces,

ut.h

@@ -63,8 +63,7 @@ struct sip_msg;
 #define trim_len( _len, _begin, _mystr ) \
 	do{ 	static char _c; \
 		(_len)=(_mystr).len; \
-		while ((_len) && ((_c=(_mystr).s[(_len)-1])==0 || _c=='\r' || \
-					_c=='\n' || _c==' ' || _c=='\t' )) \
+		while ((_len) && ((_c=(_mystr).s[(_len)-1])==0 || is_ws(_c))) \
 			(_len)--; \
 		(_begin)=(_mystr).s; \
 		while ((_len) && ((_c=*(_begin))==' ' || _c=='\t')) { \