Index: /trunk/data/validator/numeric.mapcss
===================================================================
--- /trunk/data/validator/numeric.mapcss	(revision 13026)
+++ /trunk/data/validator/numeric.mapcss	(revision 13027)
@@ -8,5 +8,5 @@
 
 *[layer =~ /^\+\d/] {
-  throwWarning: tr("layer tag with + sign");
+  throwWarning: tr("{0} value with + sign", "{0.key}");
   fixAdd: concat("layer=", replace(tag("layer"), "+", ""));
   assertMatch: "node layer=+1";
@@ -17,8 +17,10 @@
 
 *[layer][layer !~ /^0$|^(-|\+)?[1-5]$/] {
-  throwWarning: tr("layer should be between -5 and 5");
+  throwWarning: tr("{0} should be an integer value between -5 and 5", "{0.key}");
   assertMatch: "node layer=-50";
   assertMatch: "node layer=6";
-  assertMatch: "node layer=+100";
+  assertMatch: "node layer=+10";
+  assertMatch: "node layer=0.5";
+  assertMatch: "node layer=0;1";
   assertNoMatch: "node layer=-5";
   assertNoMatch: "node layer=0";