guix/gnu/packages/patches/java-antlr4-Add-standalone-generator.patch

From 3b43b79da15be994348f13035474925ba592fe1f Mon Sep 17 00:00:00 2001
From: Julien Lepiller <julien@lepiller.eu>
Date: Fri, 15 Sep 2017 10:06:42 +0200
Subject: [PATCH] Add standalone template generator

---
 tool/src/org/antlr/v4/unicode/UnicodeRenderer.java | 33 ++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 tool/src/org/antlr/v4/unicode/UnicodeRenderer.java

diff --git a/tool/src/org/antlr/v4/unicode/UnicodeRenderer.java b/tool/src/org/antlr/v4/unicode/UnicodeRenderer.java
new file mode 100644
index 0000000..9e53213
--- /dev/null
+++ b/tool/src/org/antlr/v4/unicode/UnicodeRenderer.java
@@ -0,0 +1,33 @@
+package org.antlr.v4.unicode;
+
+import org.stringtemplate.v4.*;
+import org.stringtemplate.v4.misc.ErrorBuffer;
+import org.antlr.v4.unicode.UnicodeDataTemplateController;
+
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.Map;
+import java.util.Map.Entry;
+
+public class UnicodeRenderer extends UnicodeDataTemplateController {
+    public static void main(String[] arg)
+        throws IOException {
+        String inputdir =  arg[0];
+        String input =     arg[1];
+        String output =    arg[2];
+
+        FileWriter fileWriter = new FileWriter(new File(output));
+        ErrorBuffer listener = new ErrorBuffer();
+
+        STGroupDir group = new STGroupDir(inputdir);
+        ST st = group.getInstanceOf(input);
+
+        for(Entry<String, Object> entry : getProperties().entrySet())
+        	st.add(entry.getKey(), entry.getValue());
+
+        st.write(new AutoIndentWriter(fileWriter), listener);
+        fileWriter.flush();
+        fileWriter.close();
+    }
+}
-- 
2.13.5