Gecko EMF R Language Exporter

 - Support for exporting EMF resources and lists of EMF objects to R
language data frame format - custom implementation

 - Minor fixes & improvements

Signed-off-by: Michael H. Siemaszko <m.siemaszko@datainmotion.com>

org.gecko.emf.exporter.r_lang.api/.classpath

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="aQute.bnd.classpath.container"/>
+	<classpathentry kind="src" output="bin" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

org.gecko.emf.exporter.r_lang.api/.gitignore

@@ -0,0 +1,2 @@
+/bin/
+/bin_test/

org.gecko.emf.exporter.r_lang.api/.project

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>org.gecko.emf.exporter.r_lang.api</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>bndtools.core.bndbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>bndtools.core.bndnature</nature>
+	</natures>
+</projectDescription>

org.gecko.emf.exporter.r_lang.api/.settings/org.eclipse.core.resources.prefs

@@ -0,0 +1,3 @@
+eclipse.preferences.version=1
+encoding/<project>=UTF-8
+encoding/bnd.bnd=UTF-8

org.gecko.emf.exporter.r_lang.api/.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,14 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=11
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11

org.gecko.emf.exporter.r_lang.api/bnd.bnd

@@ -0,0 +1,12 @@
+Bundle-Version: 1.0.0.SNAPSHOT
+Bundle-Name: Gecko EMF R Language Exporter API
+Bundle-Description: R Language Exporter API for EMF
+
+-library: enable-emf
+
+-buildpath: \
+	org.gecko.emf.exporter,\
+	org.apache.commons.commons-text,\
+	slf4j.api
+
+Export-Package: org.gecko.emf.exporter.r_lang.api

org.gecko.emf.exporter.r_lang.api/src/org/gecko/emf/exporter/r_lang/api/EMFRLangExportOptions.java

@@ -0,0 +1,26 @@
+/**
+ * Copyright (c) 2012 - 2023 Data In Motion and others.
+ * All rights reserved. 
+ * 
+ * This program and the accompanying materials are made available under the terms of the 
+ * Eclipse Public License v2.0 which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v20.html
+ * 
+ * Contributors:
+ *     Data In Motion - initial API and implementation
+ */
+package org.gecko.emf.exporter.r_lang.api;
+
+import org.gecko.emf.exporter.EMFExportOptions;
+
+/**
+ * R Language export options.
+ * 
+ * @author Michal H. Siemaszko
+ */
+public interface EMFRLangExportOptions extends EMFExportOptions {
+
+	// one data frame per RData file, contained in ZIP archive; otherwise all data
+	// frames will be output to same RData file (list of data frames)
+	String OPTION_DATAFRAME_PER_FILE = "DATAFRAME_PER_FILE";
+}

org.gecko.emf.exporter.r_lang.api/src/org/gecko/emf/exporter/r_lang/api/package-info.java

@@ -0,0 +1,3 @@
+@org.osgi.annotation.versioning.Version("1.0.0")
+@org.osgi.annotation.bundle.Export
+package org.gecko.emf.exporter.r_lang.api;

org.gecko.emf.exporter.r_lang.tests/.classpath

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="aQute.bnd.classpath.container"/>
+	<classpathentry kind="src" output="bin" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

org.gecko.emf.exporter.r_lang.tests/.gitignore

@@ -0,0 +1,2 @@
+/bin/
+/bin_test/

org.gecko.emf.exporter.r_lang.tests/.project

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>org.gecko.emf.exporter.r_lang.tests</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>bndtools.core.bndbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>bndtools.core.bndnature</nature>
+	</natures>
+</projectDescription>

org.gecko.emf.exporter.r_lang.tests/.settings/org.eclipse.core.resources.prefs

@@ -0,0 +1,4 @@
+eclipse.preferences.version=1
+encoding/<project>=UTF-8
+encoding/bnd.bnd=UTF-8
+encoding/test.bndrun=UTF-8

org.gecko.emf.exporter.r_lang.tests/.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,15 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.methodParameters=do not generate
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=11
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=disabled
+org.eclipse.jdt.core.compiler.source=11

org.gecko.emf.exporter.r_lang.tests/bnd.bnd

@@ -0,0 +1,22 @@
+-enable-junit5: true
+-library: enable-emf
+
+javac.source: 11
+javac.target: 11
+
+Bundle-Version: 1.0.0.SNAPSHOT
+
+-buildpath: \
+	org.gecko.emf.osgi.component,\
+	org.eclipse.emf.ecore.xmi,\
+	org.eclipse.emf.ecore,\
+	org.gecko.emf.osgi.example.model.basic,\
+	org.gecko.emf.exporter;version=latest,\
+	org.gecko.emf.exporter.r_lang.api;version=latest,\
+	org.apache.commons.commons-text,\
+	org.gecko.emf.util.model,\
+	org.gecko.emf.trees.model;version=latest
+
+-privatepackage: \
+	org.gecko.emf.r_lang.tests,\
+	org.gecko.emf.r_lang.tests.helper