Refactor front-end error-handling

This refactors the front-end to use a tree for capturing errors, instead
of throwing exceptions.

This has the benefit that you will receive notifications about all of
the error messages you have, instead of only the first.

I'm a bit fuzzy on the details, since it's been a while since I wrote
these changes.

1 files changed, 23 insertions, 2 deletions

diff --git a/src/main/java/bjc/rgens/parser/RGrammarTest.java b/src/main/java/bjc/rgens/parser/RGrammarTest.java
index 788823a..36c87de 100755
--- a/src/main/java/bjc/rgens/parser/RGrammarTest.java
+++ b/src/main/java/bjc/rgens/parser/RGrammarTest.java
@@ -2,11 +2,17 @@ package bjc.rgens.parser;
 
 import bjc.rgens.parser.templates.GrammarTemplate;
 
+import bjc.utils.data.ITree;
+import bjc.utils.data.Tree;
+
 import java.io.IOException;
+
 import java.net.URISyntaxException;
 import java.net.URL;
+
 import java.nio.file.Path;
 import java.nio.file.Paths;
+
 import java.util.Random;
 
 import static bjc.rgens.parser.RGrammarLogging.*;
@@ -27,9 +33,24 @@ public class RGrammarTest {
 		URL rsc = RGrammarTest.class.getResource("/server-config-sample.gcfg");
 
 		try {
+			LoadOptions lopts = new LoadOptions();
+
+			// Set up load options
+			lopts.doPerf  = true;
+			lopts.doDebug = false;
+			lopts.doTrace = false;
+
+			lopts.defName = "default";
+
 			/* Load a grammar set. */
-			Path        cfgPath = Paths.get(rsc.toURI());
-			ConfigSet   cfgSet  = ConfigLoader.fromConfigFile(cfgPath);
+			Path cfgPath = Paths.get(rsc.toURI());
+
+			String        msg     = String.format("INFO: Loading config file %s", cfgPath);
+			ITree<String> errTree = new Tree<>(msg);
+
+			ConfigSet cfgSet = ConfigLoader.fromConfigFile(cfgPath, lopts, errTree);
+
+			System.err.print(errTree);
 
 			for(RGrammarSet gramSet : cfgSet.grammars.values()) {
 				testGrammarSet(gramSet);