Move over from contrib/mathml

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@195908 13f79535-47bb-0310-9956-ffa450edef68

12 files changed, 690 insertions, 0 deletions

diff --git a/examples/mathml/.cvsignore b/examples/mathml/.cvsignore
new file mode 100644
index 000000000..378eac25d
--- /dev/null
+++ b/examples/mathml/.cvsignore
@@ -0,0 +1 @@
+build
diff --git a/examples/mathml/README b/examples/mathml/README
new file mode 100644
index 000000000..72860b124
--- /dev/null
+++ b/examples/mathml/README
@@ -0,0 +1,10 @@
+FOP MathML Readme
+
+This directory contains an extension for MathML that can be used with FOP.
+
+This extension works with JEuclid which is available from:
+http://sourceforge.net/projects/jeuclid/
+
+This simply uses JEuclid to convert the MathML CML into SVG.
+The SVG is then handled as normal.
+
diff --git a/examples/mathml/build.bat b/examples/mathml/build.bat
new file mode 100755
index 000000000..96aa30a7f
--- /dev/null
+++ b/examples/mathml/build.bat
@@ -0,0 +1,35 @@
+@echo off
+
+echo MathML Build System
+echo ---------------------
+
+if "%JAVA_HOME%" == "" goto error
+
+set LIBDIR=..\..\lib
+set LOCALCLASSPATH=%JAVA_HOME%\lib\tools.jar;%JAVA_HOME%\lib\classes.zip
+set LOCALCLASSPATH=%LOCALCLASSPATH%;%LIBDIR%\ant.jar
+set LOCALCLASSPATH=%LOCALCLASSPATH%;%LIBDIR%\xml-apis.jar
+set LOCALCLASSPATH=%LOCALCLASSPATH%;%LIBDIR%\xercesImpl-2.2.1.jar
+set LOCALCLASSPATH=%LOCALCLASSPATH%;%LIBDIR%\xalan-2.4.1.jar
+
+set ANT_HOME=%LIBDIR%
+
+echo Building with classpath %LOCALCLASSPATH%
+
+echo Starting Ant...
+
+%JAVA_HOME%\bin\java.exe -Dant.home=%ANT_HOME% -classpath "%LOCALCLASSPATH%" org.apache.tools.ant.Main %1 %2 %3 %4 %5
+
+goto end
+
+:error
+
+echo ERROR: JAVA_HOME not found in your environment.
+echo Please, set the JAVA_HOME variable in your environment to match the
+echo location of the Java Virtual Machine you want to use.
+
+:end
+
+rem set LOCALCLASSPATH=
+
+pause
\ No newline at end of file
diff --git a/examples/mathml/build.sh b/examples/mathml/build.sh
new file mode 100644
index 000000000..986d3c1e3
--- /dev/null
+++ b/examples/mathml/build.sh
@@ -0,0 +1,30 @@
+#!/bin/sh
+echo
+echo "MathML Build System"
+echo "---------------------"
+echo
+
+if [ "$JAVA_HOME" = "" ] ; then
+  echo "ERROR: JAVA_HOME not found in your environment."
+  echo
+  echo "Please, set the JAVA_HOME variable in your environment to match the"
+  echo "location of the Java Virtual Machine you want to use."
+  exit 1
+fi
+LIBDIR=../../lib
+LOCALCLASSPATH=$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/classes.zip
+LOCALCLASSPATH=$LOCALCLASSPATH:$LIBDIR/ant.jar
+LOCALCLASSPATH=$LOCALCLASSPATH:$LIBDIR/xml-apis.jar
+LOCALCLASSPATH=$LOCALCLASSPATH:$LIBDIR/xercesImpl-2.2.1.jar
+LOCALCLASSPATH=$LOCALCLASSPATH:$LIBDIR/xalan-2.4.1.jar
+ANT_HOME=$LIBDIR
+
+echo
+CP=$LOCALCLASSPATH
+echo Building with classpath $CP
+
+
+echo Starting Ant...
+echo
+
+$JAVA_HOME/bin/java -Dant.home=$ANT_HOME -classpath "$CP" org.apache.tools.ant.Main $*
diff --git a/examples/mathml/build.xml b/examples/mathml/build.xml
new file mode 100644
index 000000000..78e84b514
--- /dev/null
+++ b/examples/mathml/build.xml
@@ -0,0 +1,139 @@
+<?xml version="1.0"?>
+
+<!-- ===========================================================================
+
+============================================================================ -->
+
+<project default="package" basedir=".">
+
+  <path id="libs-build-classpath">
+    <fileset dir="../../lib">
+      <include name="*.jar"/>
+    </fileset>
+    <fileset dir="../../build">
+      <include name="fop.jar"/>
+    </fileset>
+    <fileset dir="lib">
+      <include name="*.jar"/>
+    </fileset>
+  </path>
+
+  <!-- =================================================================== -->
+  <!-- Initialization target                                               -->
+  <!-- =================================================================== -->
+  <target name="init">
+    <tstamp/>
+    <property name="Name" value="MathML-FOP"/>
+    <property name="name" value="mathml-fop"/>
+    <property name="version" value="0.1-CVS"/>
+    <filter  token="version" value="${version}"/>
+    <property name="year" value="2002"/>
+
+    <echo message="------------------- ${Name} ${version} [${year}] ----------------"/>
+
+    <property name="build.compiler" value="classic"/>
+    <property name="debug" value="on"/>
+    <property name="optimize" value="off"/>
+    <property name="deprecation" value="on"/>
+
+    <property name="src.dir" value="./src"/>
+    <property name="lib.dir" value="./lib"/>
+    <property name="packages" value="org.apache.fop.*"/>
+
+    <property name="build.dir" value="./build"/>
+    <property name="build.src" value="./build/src"/>
+    <property name="build.dest" value="./build/classes"/>
+
+    <property name="resource.dir" value="resources"/>
+    <property name="mathml.dir" value="org/apache/fop/mathml"/>
+
+    <available property="jeuclid.present" classname="net.sourceforge.jeuclid.MathBase" classpathref="libs-build-classpath"/>
+  </target>
+  <target name="jeuclid-check" depends="init" unless="jeuclid.present">
+    <echo message="============================================================================="/>
+    <echo message="jeuclid.jar is missing in the lib directory."/>
+    <echo message="You can download it at: http://sourceforge.net/projects/jeuclid/"/>
+    <echo message="============================================================================="/>
+    <fail message="Dependecy check failed."/>
+  </target>
+
+  <!-- =================================================================== -->
+  <!-- Help on usage                                                       -->
+  <!-- =================================================================== -->
+  <target name="usage">
+    <echo message="Use the -projecthelp option instead"/>
+  </target>
+
+  <!-- =================================================================== -->
+  <!-- Prepares the build directory                                        -->
+  <!-- =================================================================== -->
+  <target name="prepare" depends="init, jeuclid-check">
+    <!-- create directories -->
+    <echo message="Preparing the build directories"/>
+    <mkdir dir="${build.dir}"/>
+    <mkdir dir="${build.src}"/>
+    <mkdir dir="${build.src}/${mathml.dir}"/>
+  </target>
+
+  <!-- =================================================================== -->
+  <!-- Prepares the source code                                            -->
+  <!-- =================================================================== -->
+  <target name="prepare-src" depends="prepare">
+    <!-- copy src files -->
+    <copy todir="${build.src}">
+      <fileset dir="${src.dir}"
+         excludes="**/Makefile*, **/package.html"/>
+    </copy>
+    <copy todir="${build.dest}/">
+      <fileset dir="${resource.dir}"/>
+    </copy>
+  </target>
+
+  <!-- =================================================================== -->
+  <!-- Compiles the source directory                                       -->
+  <!-- =================================================================== -->
+  <target name="compile" depends="prepare-src" description="Compile the Java sources">
+    <echo message="Compiling the sources "/>
+    <!-- create directories -->
+    <mkdir dir="${build.dest}"/>
+
+    <javac srcdir="${build.src}"
+           destdir="${build.dest}"
+           debug="${debug}"
+           deprecation="${deprecation}"
+           optimize="${optimize}"
+           excludes="">
+      <classpath refid="libs-build-classpath"/>
+    </javac>
+  </target>
+
+  <!-- =================================================================== -->
+  <!-- Creates the class package                                           -->
+  <!-- =================================================================== -->
+  <target name="package" depends="compile" description="Create jar file">
+    <echo message="Creating the jar file ${build.dir}/${name}.jar"/>
+    <tstamp>
+      <format property="ts" pattern="yyyyMMdd-HHmmss-z"/>
+    </tstamp>
+
+    <jar jarfile="${build.dir}/${name}.jar"
+         basedir="${build.dest}"
+         includes="**">
+    <manifest>
+        <attribute name="Implementation-Title" value="${Name}"/>
+        <attribute name="Implementation-Version" value="${version}"/>
+        <attribute name="Implementation-Vendor" value="Apache Software Foundation (http://xml.apache.org/fop/)"/>
+        <attribute name="Build-Id" value="${ts} (${user.name} [${os.name} ${os.version} ${os.arch}])"/>
+    </manifest>
+    </jar>
+  </target>
+
+  <!-- =================================================================== -->
+  <!-- Clean targets                                                       -->
+  <!-- =================================================================== -->
+  <target name="clean" depends="init" description="Cleans the build directory">
+    <delete dir="${build.dir}"/>
+  </target>
+
+</project>
+
diff --git a/examples/mathml/docs/example.mml b/examples/mathml/docs/example.mml
new file mode 100644
index 000000000..0f04968c2
--- /dev/null
+++ b/examples/mathml/docs/example.mml
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+    <math xmlns="http://www.w3.org/1998/Math/MathML" mode="display">
+      <mrow>
+        <mo stretchy="false">{</mo>
+        <munder>
+          <mrow>
+            <mover>
+              <mrow>
+                <mpadded width="0"/>
+                <!--mpadded width="0">(</mpadded-->
+                <!-- \mathstrut -ugly hack a la TeX -->
+                <mi>a</mi>
+                <mo>,</mo>
+                <mo>...</mo>
+                <mo>,</mo>
+                <mi>a</mi>
+              </mrow>
+              <mover>
+                <mo>&#x0FE37;</mo>
+                <mrow>
+                  <mi>k</mi>
+                  <mtext>&#x000A0;</mtext>
+                  <mi>a</mi>
+                  <mtext>'s</mtext>
+                </mrow>
+              </mover>
+            </mover>
+            <mo>,</mo>
+            <mover>
+              <mrow>
+                <mpadded/>
+                <!--mpadded width="0">(</mpadded-->
+                <!-- \mathstrut -ugly hack a la TeX -->
+                <mi>b</mi>
+                <mo>,</mo>
+                <mo>...</mo>
+                <mo>,</mo>
+                <mi>b</mi>
+              </mrow>
+              <mover>
+                <mo>&#x0FE37;</mo>
+                <mrow>
+                  <mi>&#x02113;</mi>
+                  <mtext>&#x000A0;</mtext>
+                  <mi>b</mi>
+                  <mtext>'s</mtext>
+                </mrow>
+              </mover>
+            </mover>
+          </mrow>
+          <munder>
+            <mo>&#x0FE38;</mo>
+            <mrow>
+              <mi>k</mi>
+              <mo>+</mo>
+              <mi>&#x02113;</mi>
+              <mtext>&#x000A0;elements</mtext>
+            </mrow>
+          </munder>
+        </munder>
+        <mo stretchy="false">}</mo>
+      </mrow>
+    </math>
diff --git a/examples/mathml/docs/mathml.fo b/examples/mathml/docs/mathml.fo
new file mode 100644
index 000000000..a5ff53f26
--- /dev/null
+++ b/examples/mathml/docs/mathml.fo
@@ -0,0 +1,172 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
+  <fo:layout-master-set>
+    <fo:simple-page-master
+  margin-right="1.5cm"
+  margin-left="1.5cm"
+  margin-bottom="2cm"
+  margin-top="1cm"
+  page-width="21cm"
+  page-height="29.7cm"
+  master-name="first">
+      <fo:region-before extent="1cm"/>
+      <fo:region-body margin-top="1cm"/>
+      <fo:region-after extent="1.5cm"/>
+    </fo:simple-page-master>
+  </fo:layout-master-set>
+
+  <fo:page-sequence master-reference="first">
+    <fo:static-content flow-name="xsl-region-before">
+      <fo:block line-height="14pt" font-size="10pt"
+    text-align="end">Plan Extension</fo:block>
+    </fo:static-content>
+    <fo:static-content flow-name="xsl-region-after">
+      <fo:block line-height="14pt" font-size="10pt"
+    text-align="end">Page <fo:page-number/></fo:block>
+    </fo:static-content>
+
+    <fo:flow flow-name="xsl-region-body">
+
+      <fo:block space-before.optimum="3pt" space-after.optimum="15pt">
+      The MathML Extension
+      </fo:block>
+
+      <fo:block space-before.optimum="3pt" space-after.optimum="15pt">
+The mathml extension is an addition to FOP that can be used to draw mathml
+expressions.
+      </fo:block>
+
+      <fo:block space-before.optimum="3pt" space-after.optimum="15pt">
+      Examples
+      </fo:block>
+
+      <fo:block space-before.optimum="3pt" space-after.optimum="15pt">
+<fo:block space-after.optimum="5pt">
+<fo:instream-foreign-object>
+       <math xmlns="http://www.w3.org/1998/Math/MathML" mode="inline">
+          <mrow>
+            <mi>I</mi>
+            <mrow>
+              <mo>(</mo>
+              <mi>x</mi>
+              <mo>)</mo>
+            </mrow>
+            <mo>=</mo>
+            <mi>F</mi>
+            <mo stretchy="false">(</mo>
+            <mi>x</mi>
+            <mo stretchy="false">)</mo>
+            <mo>+</mo>
+            <mi>C</mi>
+          </mrow>
+        </math>
+</fo:instream-foreign-object>
+</fo:block>
+      </fo:block>
+
+      <fo:block space-before.optimum="3pt" space-after.optimum="15pt">
+<fo:block space-after.optimum="5pt">
+<fo:instream-foreign-object>
+    <math xmlns="http://www.w3.org/1998/Math/MathML" mode="inline">
+      <mrow>
+        <mo>(</mo>
+        <mtable>
+          <mtr>
+            <mtd columnalign="center">
+              <mrow>
+                <mo>(</mo>
+                <mtable>
+                  <mtr>
+                    <mtd columnalign="center">
+                      <mi>a</mi>
+                    </mtd>
+                    <mtd columnalign="center">
+                      <mi>b</mi>
+                    </mtd>
+                  </mtr>
+                  <mtr>
+                    <mtd columnalign="center">
+                      <mi>c</mi>
+                    </mtd>
+                    <mtd columnalign="center">
+                      <mi>d</mi>
+                    </mtd>
+                  </mtr>
+                </mtable>
+                <mo>)</mo>
+              </mrow>
+            </mtd>
+            <mtd columnalign="center">
+              <mrow>
+                <mo>(</mo>
+                <mtable>
+                  <mtr>
+                    <mtd columnalign="center">
+                      <mi>e</mi>
+                    </mtd>
+                    <mtd columnalign="center">
+                      <mi>f</mi>
+                    </mtd>
+                  </mtr>
+                  <mtr>
+                    <mtd columnalign="center">
+                      <mi>g</mi>
+                    </mtd>
+                    <mtd columnalign="center">
+                      <mi>h</mi>
+                    </mtd>
+                  </mtr>
+                </mtable>
+                <mo>)</mo>
+              </mrow>
+            </mtd>
+          </mtr>
+          <mtr>
+            <mtd columnalign="center">
+              <mn>0</mn>
+            </mtd>
+            <mtd columnalign="center">
+              <mrow>
+                <mo>(</mo>
+                <mtable>
+                  <mtr>
+                    <mtd columnalign="center">
+                      <mi>i</mi>
+                    </mtd>
+                    <mtd columnalign="center">
+                      <mi>j</mi>
+                    </mtd>
+                  </mtr>
+                  <mtr>
+                    <mtd columnalign="center">
+                      <mi>k</mi>
+                    </mtd>
+                    <mtd columnalign="center">
+                      <mi>l</mi>
+                    </mtd>
+                  </mtr>
+                </mtable>
+                <mo>)</mo>
+              </mrow>
+            </mtd>
+          </mtr>
+        </mtable>
+        <mo>)</mo>
+      </mrow>
+    </math>
+
+</fo:instream-foreign-object>
+</fo:block>
+</fo:block>
+
+      <fo:block>
+An external mathml document.
+      </fo:block>
+
+      <fo:block>
+<fo:external-graphic src="example.mml"/>
+      </fo:block>
+    </fo:flow>
+  </fo:page-sequence>
+</fo:root>
+
diff --git a/examples/mathml/lib/readme.txt b/examples/mathml/lib/readme.txt
new file mode 100644
index 000000000..9166db6f7
--- /dev/null
+++ b/examples/mathml/lib/readme.txt
@@ -0,0 +1 @@
+Put jeuclid.jar in this directory!
diff --git a/examples/mathml/resources/META-INF/services/org.apache.fop.fo.ElementMapping b/examples/mathml/resources/META-INF/services/org.apache.fop.fo.ElementMapping
new file mode 100644
index 000000000..406a8319a
--- /dev/null
+++ b/examples/mathml/resources/META-INF/services/org.apache.fop.fo.ElementMapping
@@ -0,0 +1,2 @@
+org.apache.fop.mathml.MathMLElementMapping
+
diff --git a/examples/mathml/src/org/apache/fop/mathml/MathMLElement.java b/examples/mathml/src/org/apache/fop/mathml/MathMLElement.java
new file mode 100644
index 000000000..066b7b54c
--- /dev/null
+++ b/examples/mathml/src/org/apache/fop/mathml/MathMLElement.java
@@ -0,0 +1,124 @@
+/* $Id$
+ * Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
+ * For details on use and redistribution please refer to the
+ * LICENSE file included with these sources.
+ */
+
+package org.apache.fop.mathml;
+
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.geom.Point2D;
+
+import org.apache.fop.fo.FONode;
+import org.apache.fop.apps.FOPException;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.*;
+import org.xml.sax.Attributes;
+
+import org.apache.batik.svggen.SVGGraphics2D;
+import org.apache.batik.dom.svg.SVGDOMImplementation;
+
+import net.sourceforge.jeuclid.MathBase;
+import net.sourceforge.jeuclid.DOMMathBuilder;
+
+public class MathMLElement extends MathMLObj {
+    Document svgDoc = null;
+    float width;
+    float height;
+    boolean converted = false;
+
+    public MathMLElement(FONode parent) {
+        super(parent);
+    }
+
+    public void handleAttrs(Attributes attlist) throws FOPException {
+        super.handleAttrs(attlist);
+        createBasicDocument();
+    }
+
+    public void convertToSVG() {
+        try {
+            if (!converted) {
+                converted = true;
+                String fontname = "Helvetica";
+                int fontstyle = 0;
+                int inlinefontstyle = 0;
+                int displayfontsize = 12;
+                int inlinefontsize = 12;
+
+                MathBase base = new MathBase(
+                                  (new DOMMathBuilder(doc)).getMathRootElement(),
+                                  fontname, fontstyle, inlinefontsize,
+                                  displayfontsize);
+
+                base.setDebug(false);
+
+                svgDoc = createSVG(base);
+
+                width = base.getWidth();
+                height = base.getHeight();
+
+                doc = svgDoc;
+            }
+        } catch (Throwable t) {
+            userAgent.getLogger().error("Could not convert MathML to SVG", t);
+            width = 0;
+            height = 0;
+        }
+
+    }
+
+    public static Document createSVG(MathBase base) {
+
+        DOMImplementation impl =
+          SVGDOMImplementation.getDOMImplementation();
+        String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
+        Document svgdocument = impl.createDocument(svgNS, "svg", null);
+
+        SVGGraphics2D g = new SVGGraphics2D(svgdocument);
+
+        g.setSVGCanvasSize(
+          new Dimension(base.getWidth(), base.getHeight()));
+
+        //g.setColor(Color.white);
+        //g.fillRect(0, 0, base.getWidth(), base.getHeight());
+        g.setColor(Color.black);
+
+        base.paint(g);
+
+        //if (antialiasing)
+        //element.setAttribute("text-rendering", "optimizeLegibility");
+        //else
+        //element.setAttribute("text-rendering", "geometricPrecision");
+
+        // this should be done in a better way
+        Element root = g.getRoot();
+        svgdocument = impl.createDocument(svgNS, "svg", null);
+        Node node = svgdocument.importNode(root, true);
+        ((org.apache.batik.dom.svg.SVGOMDocument) svgdocument).
+        getRootElement().appendChild(node);
+
+        return svgdocument;
+
+    }
+
+    public Document getDocument() {
+        convertToSVG();
+        return doc;
+    }
+
+    public String getDocumentNamespace() {
+        if (svgDoc == null) {
+            return MathMLElementMapping.URI;
+        }
+        return "http://www.w3.org/2000/svg";
+    }
+
+    public Point2D getDimension(Point2D view) {
+        convertToSVG();
+        return new Point2D.Float(width, height);
+    }
+}
+
diff --git a/examples/mathml/src/org/apache/fop/mathml/MathMLElementMapping.java b/examples/mathml/src/org/apache/fop/mathml/MathMLElementMapping.java
new file mode 100644
index 000000000..f1f2b0fd3
--- /dev/null
+++ b/examples/mathml/src/org/apache/fop/mathml/MathMLElementMapping.java
@@ -0,0 +1,87 @@
+/* $Id$
+ * Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
+ * For details on use and redistribution please refer to the
+ * LICENSE file included with these sources.
+ */
+
+package org.apache.fop.mathml;
+
+import org.apache.fop.fo.FOTreeBuilder;
+import org.apache.fop.fo.FONode;
+import org.apache.fop.fo.ElementMapping;
+import org.apache.fop.image.analyser.XMLReader;
+import org.apache.fop.image.FopImage;
+import org.w3c.dom.Document;
+
+import java.util.HashMap;
+
+import net.sourceforge.jeuclid.MathBase;
+import net.sourceforge.jeuclid.DOMMathBuilder;
+
+public class MathMLElementMapping implements ElementMapping {
+
+    public static final String URI = "http://www.w3.org/1998/Math/MathML";
+
+    private static HashMap foObjs = null;
+
+    private static synchronized void setupMathML() {
+        if (foObjs == null) {
+            foObjs = new HashMap();
+            foObjs.put("math", new ME());
+            foObjs.put(DEFAULT, new MathMLMaker());
+
+            XMLReader.setConverter(URI, new MathMLConverter());
+        }
+    }
+
+    public void addToBuilder(FOTreeBuilder builder) {
+        setupMathML();
+        builder.addMapping(URI, foObjs);
+    }
+
+    static class MathMLMaker extends ElementMapping.Maker {
+        public FONode make(FONode parent) {
+            return new MathMLObj(parent);
+        }
+    }
+
+    static class ME extends ElementMapping.Maker {
+        public FONode make(FONode parent) {
+            return new MathMLElement(parent);
+        }
+    }
+
+    static class MathMLConverter implements XMLReader.Converter {
+        public FopImage.ImageInfo convert(Document doc) {
+            try {
+                FopImage.ImageInfo info = new FopImage.ImageInfo();
+                String fontname = "Helvetica";
+                int fontstyle = 0;
+                int inlinefontstyle = 0;
+                int inlinefontsize = 12;
+                int displayfontsize = 12;
+
+                MathBase base = new MathBase(
+                                  (new DOMMathBuilder(doc)).getMathRootElement(),
+                                  fontname, fontstyle, inlinefontsize,
+                                  displayfontsize);
+
+                base.setDebug(false);
+
+                info.data = MathMLElement.createSVG(base);
+
+                info.width = base.getWidth();
+                info.height = base.getHeight();
+
+                info.mimeType = "image/svg+xml";
+                info.str = "http://www.w3.org/2000/svg";
+
+                return info;
+            } catch (Throwable t) {
+            }
+            return null;
+
+        }
+    }
+
+}
diff --git a/examples/mathml/src/org/apache/fop/mathml/MathMLObj.java b/examples/mathml/src/org/apache/fop/mathml/MathMLObj.java
new file mode 100644
index 000000000..f7f8d82ca
--- /dev/null
+++ b/examples/mathml/src/org/apache/fop/mathml/MathMLObj.java
@@ -0,0 +1,26 @@
+/* $Id$
+ * Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
+ * For details on use and redistribution please refer to the
+ * LICENSE file included with these sources.
+ */
+
+package org.apache.fop.mathml;
+
+// FOP
+import org.apache.fop.fo.FONode;
+import org.apache.fop.fo.XMLObj;
+
+/**
+ * Catch all MathML object as default element.
+ */
+public class MathMLObj extends XMLObj {
+
+    public MathMLObj(FONode parent) {
+        super(parent);
+    }
+
+    public String getNameSpace() {
+        return MathMLElementMapping.URI;
+    }
+}
+