Move modules for docx reading into separate directory

1 files changed, 63 insertions, 0 deletions

diff --git a/lib/docx/numbering-xml.js b/lib/docx/numbering-xml.js
new file mode 100644
index 0000000..7e64dc2
--- /dev/null
+++ b/lib/docx/numbering-xml.js
@@ -0,0 +1,63 @@
+var readXmlFromZipFile = require("./office-xml-reader").readXmlFromZipFile;
+
+exports.readNumberingXml = readNumberingXml;
+exports.readNumberingFromZipFile = readNumberingFromZipFile;
+exports.Numbering = Numbering;
+
+function readNumberingFromZipFile(file) {
+    return readXmlFromZipFile(file, "word/numbering.xml")
+        .then(function(xml) {
+            return xml ? readNumberingXml(xml) : new Numbering({});
+        });
+}
+
+function Numbering(nums) {
+    return {
+        findLevel: function(numId, level) {
+            var num = nums[numId];
+            if (num) {
+                return num[level];
+            } else {
+                return null;
+            }
+        }
+    };
+}
+
+function readNumberingXml(xml) {
+    var abstractNums = readAbstractNums(xml);
+    var nums = readNums(xml, abstractNums);
+    return new Numbering(nums);
+}
+
+function readAbstractNums(xml) {
+    var abstractNums = {};
+    xml.root.getElementsByTagName("w:abstractNum").forEach(function(element) {
+        var id = element.attributes["w:abstractNumId"];
+        abstractNums[id] = readAbstractNum(element);
+    });
+    return abstractNums;
+}
+
+function readAbstractNum(element) {
+    var levels = {};
+    element.getElementsByTagName("w:lvl").forEach(function(levelElement) {
+        var levelIndex = levelElement.attributes["w:ilvl"];
+        var numFmt = levelElement.first("w:numFmt").attributes["w:val"];
+        levels[levelIndex] = {
+            isOrdered: numFmt !== "bullet",
+            level: levelIndex
+        };
+    });
+    return levels;
+}
+
+function readNums(xml, abstractNums) {
+    var nums = {};
+    xml.root.getElementsByTagName("w:num").forEach(function(element) {
+        var id = element.attributes["w:numId"];
+        var abstractNumId = element.first("w:abstractNumId").attributes["w:val"];
+        nums[id] = abstractNums[abstractNumId];
+    });
+    return nums;
+}