Resolve warnings

4 files changed, 21 insertions, 8 deletions

diff --git a/RGens/src/main/java/bjc/rgens/parser/RGrammarParser.java b/RGens/src/main/java/bjc/rgens/parser/RGrammarParser.java
index cffb896..3a357b1 100644
--- a/RGens/src/main/java/bjc/rgens/parser/RGrammarParser.java
+++ b/RGens/src/main/java/bjc/rgens/parser/RGrammarParser.java
@@ -19,7 +19,9 @@ import java.util.Map;
  * @author student
  */
 public class RGrammarParser {
-	/* Whether we are in debug mode or not. */
+	/**
+	 *  Whether we are in debug mode or not.
+	 */
 	public static final boolean DEBUG = false;
 
 	/*
@@ -369,6 +371,7 @@ public class RGrammarParser {
 				String ctxDelim = String.format(TMPL_TOPLEVEL_BLOCK_DELIM, level + 1);
 
 				try (BlockReader bodyReader = new SimpleBlockReader(ctxDelim, ctxReader)) {
+					@SuppressWarnings("unused")
 					Block whereBody = whereReader.next();
 
 					/**
diff --git a/RGens/src/main/java/bjc/rgens/parser/RGrammarSet.java b/RGens/src/main/java/bjc/rgens/parser/RGrammarSet.java
index 41974c0..975510a 100644
--- a/RGens/src/main/java/bjc/rgens/parser/RGrammarSet.java
+++ b/RGens/src/main/java/bjc/rgens/parser/RGrammarSet.java
@@ -179,7 +179,7 @@ public class RGrammarSet {
 			return grammarName;
 		} else if (!grammars.containsKey(grammarName)) {
 			String msg = String.format("No grammar with name '%s' defined", grammarName);
-			throw new IllegalArgumentException();
+			throw new IllegalArgumentException(msg);
 		}
 
 		return loadedFrom.getOrDefault(grammarName, "Unknown");
diff --git a/RGens/src/main/java/bjc/rgens/parser/RGrammars.java b/RGens/src/main/java/bjc/rgens/parser/RGrammars.java
index 69cca0d..f74a756 100644
--- a/RGens/src/main/java/bjc/rgens/parser/RGrammars.java
+++ b/RGens/src/main/java/bjc/rgens/parser/RGrammars.java
@@ -24,6 +24,7 @@ public class RGrammars {
 
 			Map<String, String> env = new HashMap<>();
 			env.put("create", "true");
+			@SuppressWarnings("unused")
 			FileSystem zipfs = FileSystems.newFileSystem(rsc, env);
 
 			Path cfgPath = Paths.get(rsc);
@@ -38,17 +39,28 @@ public class RGrammars {
 		}
 	}
 
+	/**
+	 * Generate an exported rule.
+	 * 
+	 * @param exportName
+	 *            The rule to generate.
+	 * @return The generated rule
+	 * @throws GrammarException
+	 *             If something went wrong.
+	 */
 	public static String generateExport(String exportName) throws GrammarException {
-		if(gramSet == null) loadSet();
+		if (gramSet == null)
+			loadSet();
 
-		if(!gramSet.getExportedRules().contains(exportName)) {
-			throw new GrammarException(String.format("No built-in rule named %s", exportName));
+		if (!gramSet.getExportedRules().contains(exportName)) {
+			throw new GrammarException(String.format("No exported rule named %s", exportName));
 		}
 
 		RGrammar gram = gramSet.getExportSource(exportName);
 
 		String res = gram.generate(exportName);
-		if(exportName.contains("+")) res = res.replaceAll("\\s+", "");
+		if (exportName.contains("+"))
+			res = res.replaceAll("\\s+", "");
 
 		return res;
 	}
diff --git a/RGens/src/main/java/bjc/rgens/parser/elements/CaseElement.java b/RGens/src/main/java/bjc/rgens/parser/elements/CaseElement.java
index 7cad599..d74ab52 100644
--- a/RGens/src/main/java/bjc/rgens/parser/elements/CaseElement.java
+++ b/RGens/src/main/java/bjc/rgens/parser/elements/CaseElement.java
@@ -1,7 +1,5 @@
 package bjc.rgens.parser.elements;
 
-import static bjc.rgens.parser.elements.CaseElement.ElementType.*;
-
 import bjc.rgens.parser.GrammarException;
 
 /*