Move things around, and start on new parser.

1 files changed, 93 insertions, 0 deletions

diff --git a/RGens/src/main/java/bjc/rgens/parser/GrammarReaderApp.java b/RGens/src/main/java/bjc/rgens/parser/GrammarReaderApp.java
new file mode 100644
index 0000000..b3beb81
--- /dev/null
+++ b/RGens/src/main/java/bjc/rgens/parser/GrammarReaderApp.java
@@ -0,0 +1,93 @@
+package bjc.rgens.parser;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.PrintStream;
+
+import javax.swing.UIManager;
+import javax.swing.UnsupportedLookAndFeelException;
+
+import bjc.utils.funcutils.ListUtils;
+import bjc.utils.gen.WeightedGrammar;
+import bjc.utils.gui.SimpleDialogs;
+import bjc.utils.gui.awt.SimpleFileDialog;
+
+/**
+ * App that reads a grammar from a file and generates results
+ * 
+ * @author ben
+ *
+ */
+public class GrammarReaderApp {
+	/**
+	 * Main method of class
+	 * 
+	 * @param args
+	 *            CLI args
+	 */
+	public static void main(String[] args) {
+		try {
+			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
+		} catch (ClassNotFoundException
+				| InstantiationException
+				| IllegalAccessException
+				| UnsupportedLookAndFeelException e) {
+			e.printStackTrace();
+			System.exit(1);
+		}
+
+		doSingleFile();
+	}
+
+	private static void doSingleFile() {
+		File gramFile = SimpleFileDialog.getOpenFile(null, "Choose Grammar File", ".gram");
+
+		WeightedGrammar<String> grammar = null;
+
+		try {
+			grammar = RBGrammarReader.fromPath(gramFile.toPath());
+		} catch (IOException ioex) {
+			ioex.printStackTrace();
+
+			System.exit(1);
+		}
+
+		String initRule = "";
+
+		if (!grammar.hasInitialRule()) {
+			grammar.getRuleNames().sort((leftString, rightString) -> {
+				return leftString.compareTo(rightString);
+			});
+
+			initRule = SimpleDialogs.getChoice(null,
+					"Pick a initial rule",
+					"Pick a initial rule to generate choices from",
+					grammar.getRuleNames().toArray(new String[0]));
+		} else {
+			initRule = grammar.getInitialRule();
+		}
+
+		int count = SimpleDialogs.getWhole(null,
+				"Enter number of repetitions",
+				"Enter the number of items to generate from the rule");
+
+		File outputFile = SimpleFileDialog.getSaveFile(null, "Choose Grammar File");
+
+		PrintStream outputStream = null;
+
+		try {
+			outputStream = new PrintStream(outputFile);
+		} catch (FileNotFoundException e) {
+			e.printStackTrace();
+		}
+
+		for (int i = 0; i < count; i++) {
+			String ruleResult = ListUtils.collapseTokens(grammar.generateListValues(initRule, " "));
+
+			outputStream.println(ruleResult.replaceAll("\\s+", " "));
+		}
+
+		outputStream.close();
+	}
+}