[#22274] Special chars = 2 characters

workaround, just remove utf from number strings until we have proper UTF editing.

source/blender/editors/interface/interface_handlers.c

@@ -28,6 +28,7 @@
 #include <math.h>
 #include <stdlib.h>
 #include <string.h>
+#include <ctype.h>
 
 #include "MEM_guardedalloc.h"
 
@@ -1535,6 +1536,19 @@ static void ui_textedit_begin(bContext *C, uiBut *but, uiHandleButtonData *data)
 	data->str= MEM_callocN(sizeof(char)*data->maxlen + 1, "textedit str");
 	ui_get_but_string(but, data->str, data->maxlen);
 
+	if(ELEM3(but->type, NUM, NUMABS, NUMSLI)) {
+		/* XXX: we dont have utf editing yet so for numbers its best to strip out utf chars 
+		 * this is so the deg' synbol isnt included in number editing fields: bug 22274 */
+		int i;
+		for(i=0; data->str[i]; i++) {
+			if(!isascii(data->str[i])) {
+				data->str[i]= '\0';
+				break;
+			}
+		}
+	}
+	
+	
 	data->origstr= BLI_strdup(data->str);
 	data->selextend= 0;
 	data->selstartx= 0;