Create internal package

1 files changed, 58 insertions, 0 deletions

diff --git a/src/main/java/org/zwobble/mammoth/internal/docx/OfficeXml.java b/src/main/java/org/zwobble/mammoth/internal/docx/OfficeXml.java
new file mode 100644
index 0000000..2b5c279
--- /dev/null
+++ b/src/main/java/org/zwobble/mammoth/internal/docx/OfficeXml.java
@@ -0,0 +1,58 @@
+package org.zwobble.mammoth.internal.docx;
+
+import com.google.common.collect.ImmutableBiMap;
+import com.google.common.collect.ImmutableList;
+import org.zwobble.mammoth.internal.xml.XmlElement;
+import org.zwobble.mammoth.internal.xml.XmlNode;
+import org.zwobble.mammoth.internal.xml.XmlNodeVisitor;
+import org.zwobble.mammoth.internal.xml.XmlTextNode;
+import org.zwobble.mammoth.internal.xml.parsing.XmlParser;
+
+import java.io.InputStream;
+import java.util.List;
+
+import static com.google.common.collect.Iterables.concat;
+import static com.google.common.collect.Iterables.transform;
+import static org.zwobble.mammoth.internal.util.MammothLists.list;
+
+public class OfficeXml {
+    private static ImmutableBiMap<String, String> XML_NAMESPACES = ImmutableBiMap.<String, String>builder()
+        .put("w", "http://schemas.openxmlformats.org/wordprocessingml/2006/main")
+        .put("wp", "http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing")
+        .put("a", "http://schemas.openxmlformats.org/drawingml/2006/main")
+        .put("pic", "http://schemas.openxmlformats.org/drawingml/2006/picture")
+        .put("content-types", "http://schemas.openxmlformats.org/package/2006/content-types")
+        .put("r", "http://schemas.openxmlformats.org/officeDocument/2006/relationships")
+        .put("relationships", "http://schemas.openxmlformats.org/package/2006/relationships")
+        .put("v", "urn:schemas-microsoft-com:vml")
+        .put("mc", "http://schemas.openxmlformats.org/markup-compatibility/2006")
+        .put("office-word", "urn:schemas-microsoft-com:office:word")
+        .build();
+
+    public static XmlElement parseXml(InputStream inputStream) {
+        XmlParser parser = new XmlParser(XML_NAMESPACES);
+        return (XmlElement)collapseAlternateContent(parser.parseStream(inputStream)).get(0);
+    }
+
+    private static List<XmlNode> collapseAlternateContent(XmlNode node) {
+        return node.accept(new XmlNodeVisitor<List<XmlNode>>() {
+            @Override
+            public List<XmlNode> visit(XmlElement element) {
+                if (element.getName().equals("mc:AlternateContent")) {
+                    return element.findChild("mc:Fallback").getChildren();
+                } else {
+                    XmlElement collapsedElement = new XmlElement(
+                        element.getName(),
+                        element.getAttributes(),
+                        ImmutableList.copyOf(concat(transform(element.children(), OfficeXml::collapseAlternateContent))));
+                    return list(collapsedElement);
+                }
+            }
+
+            @Override
+            public List<XmlNode> visit(XmlTextNode textNode) {
+                return list(textNode);
+            }
+        });
+    }
+}