Very basic conversion from docx to HTML

2 files changed, 124 insertions, 0 deletions

diff --git a/lib/index.js b/lib/index.js
new file mode 100644
index 0000000..11364b3
--- /dev/null
+++ b/lib/index.js
@@ -0,0 +1,49 @@
+var q = require("q");
+var xmlreader = require("./xmlreader");
+
+exports.Converter = Converter;
+
+function Converter() {
+}
+
+Converter.prototype.convertToHtml = function(docxFile) {
+    return docxFile.read("word/document.xml").then(function(documentXmlString) {
+        return parseXml(documentXmlString);
+    }).then(function(documentXml) {
+        var body = documentXml.root.first("w:body");
+        
+        var html = body.children.map(elementToHtml).join("");
+        
+        return {
+            html: html
+        }; 
+    });
+}
+
+function parseXml(string) {
+    return xmlreader.read(string);
+}
+
+function elementToHtml(element) {
+    if (element.type === "element") {
+        var handler = elementConverters[element.name];
+        if (handler) {
+            return handler(element);
+        } else {
+            return "";
+        }
+    }
+}
+
+var elementConverters = {
+    "w:p": function(element) {
+        var innerHtml = element.children.map(elementToHtml).join("");
+        return "<p>" + innerHtml + "</p>";
+    },
+    "w:r": function(element) {
+        return element.children.map(elementToHtml).join("");
+    },
+    "w:t": function(element) {
+        return element.children[0].value;
+    }
+};
diff --git a/lib/xmlreader.js b/lib/xmlreader.js
new file mode 100644
index 0000000..67dda38
--- /dev/null
+++ b/lib/xmlreader.js
@@ -0,0 +1,75 @@
+var q = require("q");
+var sax = require("sax");
+var _ = require("underscore");
+
+exports.read = read;
+
+function read(xmlString) {
+    var parser = sax.parser(true, {xmlns: true, position: false});
+    
+    //~ parser.onerror = function(error) {
+        //~ Q.fcall(function () {
+            //~ throw new Error("Can't do it");
+        //~ });
+    //~ };
+    
+    var rootElement = {children: []};
+    var currentElement = rootElement;
+    var stack = [];
+    
+    var deferred = q.defer();
+    
+    parser.onopentag = function(node) {
+        var attributes = mapValues(node.attributes, function(attribute) {
+            return attribute.value;
+        });
+        
+        var element = new Element(node.name, attributes);
+        currentElement.children.push(element);
+        stack.push(currentElement);
+        currentElement = element
+    };
+    
+    parser.onclosetag = function(node) {
+        currentElement = stack.pop();
+    };
+    
+    parser.ontext = function(text) {
+        if (currentElement !== rootElement) {
+            currentElement.children.push({
+                type: "text",
+                value: text
+            });
+        }
+    };
+    
+    parser.onend = function() {
+        deferred.resolve({
+            root: rootElement.children[0]
+        });
+    };
+    
+    parser.write(xmlString).close();
+    
+    return deferred.promise;
+}
+
+function mapValues(input, mapper, context) {
+    return _.reduce(input, function (obj, v, k) {
+        obj[k] = mapper.call(context, v, k, input);
+        return obj;
+    }, {}, context);
+}
+
+function Element(name, attributes) {
+    this.type = "element";
+    this.name = name;
+    this.attributes = attributes;
+    this.children = [];
+}
+
+Element.prototype.first = function(name) {
+    return _.find(this.children, function(child) {
+        return child.name == name;
+    });
+}