X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.scl.compiler%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Fparser%2Fgrammar%2FGrammar.java;h=f7db0d9cd9bd904669554ad06e64b26c2aab58bb;hp=e80858c5595034d8f5deeb46cfa183e8bdeb769f;hb=1dfeb7d5c49b1391cd9d877e1eddab18995cb151;hpb=c13c4179bda758e77fe1f2032d3c4268bb9e3120

diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/parser/grammar/Grammar.java b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/parser/grammar/Grammar.java
index e80858c55..f7db0d9cd 100644
--- a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/parser/grammar/Grammar.java
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/parser/grammar/Grammar.java
@@ -1,8 +1,11 @@
 package org.simantics.scl.compiler.parser.grammar;
 
 import org.simantics.scl.compiler.parser.regexp.Namer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class Grammar implements Namer {
+    private static final Logger LOGGER = LoggerFactory.getLogger(Grammar.class);
     public final Production[] productions;
     public final String[] terminalNames;
     public final String[] nonterminalNames;
@@ -41,6 +44,6 @@ public class Grammar implements Namer {
             ++prodCount[~prod.lhs];
         for(int i=0;i<nonterminalNames.length;++i)
             if(prodCount[i]==0)
-                System.err.println("Nonterminal " + nonterminalNames[i] + " does not have productions.");
+                LOGGER.error("Nonterminal " + nonterminalNames[i] + " does not have productions.");
     }
 }