XML is a very flexible markup language that can be used for a number of task and reasons, in this post we will cover a few of the reasons why you would want to use it and how.
XML is a markup language which is part of a family of connected technologies that permit you to work with info in a arranged manner.
Due to the fact XML tags have no semantic meaning you can certainly use it for all types of things from presenting content over the internet to storing data just like lists of ingredients, books and so on. The most important point is that the tags don't have any semantic meaning or rules in order to make your own tags for whatever purpose.
So for instance, you're a food manufacturer and you require a document for your food labels, you might create a complete amount of relevant tags to keep your food label data, as an example , , and so forth.
Its essential to note that XML is merely text so you can use any kind of simple text editor to produce your XML file or if you prefer, you may use a dedicated XML Editor tool. The main benefit of the latter that you may produce your XML content quicker and even more correctly as a specialist xml tool may also have its own xml validation feature and even capabilities like auto complete and syntax highlighting etc.
The other attribute is that it could also look at your xml for errors for example wrong xml or extra tags or mistakes in the syntax and you may even stipulate what order the tags must appear in, what the attributes can contain, the values etc
After this you merely run your xml through the validator to make sure the xml data is just as you would like it.
The other advantage of xml is perhaps you can also model up your file by linking a css it to it, the css contains your style rules such as colours, font type and size etc.
To make your css work, basically save it in the same directory as your xml file and open up your xml file in an upto date web browser and it should show the xml data with your style properties.
The only real issue to be mindful of using this type of method is that your browser will need to be capable of handling css and not all information can be extracted or exhibited as designed.
The way to overcome this is to implement transformations, known as XSLT, which symbolizes extensible stylesheet language. This could also be employed to not only transform xml, but can also be used to transform an xml file into plain html file, which may be exhibited or seen on any internet browser.
Finally, applying css in your xslt you should also accomplish fancy transformation which can look a lot better than the plain html option due to the additional styling options which may be viewed in the newer browsers, though for older internet browsers it does not work.
There are different ways in which you can use xml as well, you can put it to use to dynamically generate html and pdf documents based on user requests, this may be amazingly powerful and beneficial.