1 files changed, 56 insertions, 0 deletions
diff --git a/src/main/java/org/zwobble/mammoth/internal/docx/NumberingXml.java b/src/main/java/org/zwobble/mammoth/internal/docx/NumberingXml.java
new file mode 100644
index 0000000..0ee480d
--- /dev/null
+++ b/src/main/java/org/zwobble/mammoth/internal/docx/NumberingXml.java
@@ -0,0 +1,56 @@
+package org.zwobble.mammoth.internal.docx;
+
+import org.zwobble.mammoth.internal.documents.NumberingLevel;
+import org.zwobble.mammoth.internal.xml.XmlElement;
+import org.zwobble.mammoth.internal.xml.XmlElementList;
+
+import java.util.Map;
+import java.util.Optional;
+
+import static com.google.common.collect.Maps.immutableEntry;
+import static org.zwobble.mammoth.internal.util.MammothMaps.toMap;
+
+public class NumberingXml {
+    public static Numbering readNumberingXmlElement(XmlElement element) {
+        Map<String, Map<String, NumberingLevel>> abstractNums = readAbstractNums(element.findChildren("w:abstractNum"));
+        return new Numbering(readNums(element.findChildren("w:num"), abstractNums));
+    }
+
+    private static Map<String, Map<String, NumberingLevel>> readAbstractNums(XmlElementList children) {
+        return toMap(children, NumberingXml::readAbstractNum);
+    }
+
+    private static Map.Entry<String, Map<String, NumberingLevel>> readAbstractNum(XmlElement element) {
+        // TODO: in python-mammoth, we allow None here. Check whether that's actually possible or not
+        String abstractNumId = element.getAttribute("w:abstractNumId");
+        return immutableEntry(abstractNumId, readAbstractNumLevels(element));
+    }
+
+    private static Map<String, NumberingLevel> readAbstractNumLevels(XmlElement element) {
+        return toMap(element.findChildren("w:lvl"), NumberingXml::readAbstractNumLevel);
+    }
+
+    private static Map.Entry<String, NumberingLevel> readAbstractNumLevel(XmlElement element) {
+        String levelIndex = element.getAttribute("w:ilvl");
+        Optional<String> numFmt = element.findChildOrEmpty("w:numFmt").getAttributeOrNone("w:val");
+        boolean isOrdered = !numFmt.equals(Optional.of("bullet"));
+        return immutableEntry(levelIndex, new NumberingLevel(levelIndex, isOrdered));
+    }
+
+    private static Map<String, Map<String, NumberingLevel>> readNums(
+        XmlElementList numElements,
+        Map<String, Map<String, NumberingLevel>> abstractNums
+    ) {
+        return toMap(numElements, numElement -> readNum(numElement, abstractNums));
+    }
+
+    private static Map.Entry<String,Map<String,NumberingLevel>> readNum(
+        XmlElement numElement,
+        Map<String, Map<String, NumberingLevel>> abstractNums
+    ) {
+        // TODO: in python-mammoth, we allow None here. Check whether that's actually possible or not
+        String numId = numElement.getAttribute("w:numId");
+        String abstractNumId = numElement.findChild("w:abstractNumId").getAttribute("w:val");
+        return immutableEntry(numId, Optional.ofNullable(abstractNums.get(abstractNumId)).get());
+    }
+}