load .we with layers

- and fix some bug : max is within range ( perhaps not as many as those added ...)
- quick hack in CharProvider to skip spaces ... ( bad it applies to strings too ...)

java/org/artisanlogiciel/lua/CharProvider.java

@@ -4,6 +4,7 @@ public class CharProvider {
 
     String input;
     int current;
+    int last;
 
     public CharProvider(String input) {
         this.input = input;
@@ -13,9 +14,16 @@ public class CharProvider {
     public char getNextchar()
     {
         int i = current;
-        if ( input.length() > current) {
-            current++;
-            return input.charAt(i);
+        int max = input.length();
+        if ( max > current) {
+            char c = 0;
+            last = current;
+            while ( ( max > i ) && ( c = input.charAt(i) ) == ' ' )
+            {
+                i++;
+            }
+            current = i + 1;
+            return c;
         }
         else
         {
@@ -26,7 +34,7 @@ public class CharProvider {
     public void pushBackChar(char c)
     {
         System.out.print('*');
-        current--;
+        current = last;
     }
 
 }