We are going to be extracting out HTML from a Word (.docx) file.
.docx is an example of an Open Document Format for Office Applications (ODF) file. It is a ZIP of an XML document.
By unzipping the file and locating the appropriate XML file, we can process the data an generate HTML
Create object, and run the main function
objExtract = new wordextractor.wordextractor();
result = objExtract.extractDocx("#strPath##fileinfo.serverfile#");
There are two main ideas that make this work
.docxfiles are zips of xml. We will be using that as a basis open the.docx.- The xml inside of the
.docxis highly recursive. Much like how in Twitter Bootstrap there are<div>s,</div>s, and more</div>s..docxis in a similar structure.
Let's dive into some code
Let's do some recursion. For those that don't know what recursion is, you must first understand recursion before you can understand recursion (sorry)
The xml in a docx file is a nexted structure. At any give point in the structure, one of two things are going on.
- Either you are at tag that controls how the subordinate tags work, OR
- You are at a tag with content.
The tags with content are easy. Just extract the content from .xmlText and return it.
The control and the suborinate ones are tougher to deal with.
Control means that you are in Header, or a list, or bold, or italic, or something. So you have to use that knowledge to come up with the right additional tags
Subordiante means you have to call the same function ReadNode() all over again. This allow you to get as deep as you need to get the content.