bugfix - tabs was not a whitespace

src/main/java/com/rusefi/pcb/nodes/PcbNode.java

@@ -126,6 +126,8 @@ public class PcbNode {
         if (result.length() == 0)
             throw new IllegalStateException("Empty token");
         log("Got token: " + result, depth);
+        if (Character.isWhitespace(result.charAt(0)))
+            throw new IllegalStateException("We do not handle whitespaces right: " + result);
         return result;
     }
 
@@ -140,7 +142,7 @@ public class PcbNode {
     }
 
     private static boolean isWhitespace(char c) {
-        return c == ' ' || c == '\r' || c == '\n';
+        return Character.isWhitespace(c);
     }
 
     public static PcbNode parse(String content) {

src/test/java/com/rusefi/pcb/PcbReadTest.java

@@ -26,7 +26,7 @@ public class PcbReadTest {
                 ")";
         PcbNode node = PcbNode.parse(string);
         List<PcbNode> lines = node.iterate("gr_line");
-        assertEquals(0, lines.size());
+        assertEquals(1, lines.size());
     }
 
     @Test