Heirarchical files

The actual MSE data is stored in heirarchical data files, these are usually files with no extension.
For example <tt>set</tt> or <tt>locale</tt>.
These are just ordinary text files, but they use an UTF-8 encoding, that means you need to use an editor that supports UTF-8.
Most modern editors support UTF-8, Notepad does on Windows XP.

--Syntax--
The files use a heirarchical structure and are made up of keys and values.
A value can be either a simple text string:
>game: magic
Or a block containing more keys and values:
>card:
>	name: My Card
>	type: Creature

Indentation is used to find out what belongs to what block. Indentation must be exactly one <tt>TAB</tt> per level, spaces are not allowed.

When the value is longer then a single line it can be written indented on the following lines:
>text:
>	T: Draw a card
>	WW: Gain 1 life

--Order--

Usually the order in which keys appear in a file doesn't matter.
However some keys, like @mse version@ and @type@ must come first because they influence how the following keys are interpreted.

--Includes--

A heirachical file can contain a reference to another file:
>>>include file: <em>filename</em>
Where filename must be an absolute or relative [[type:filename]].

That file is included literally into the current one; except for indentation, the included file never escapes from the level the 'include file' line is on.

If the file to be included can vary depending on the locale that is selected, use:
>>>include localized file: <em>filename</em>

MSE will take the filename and add "_" followed by the name of the currently selected locale at the end of it.
So for example, if the locale used is the folder "en.mse-locale", the file that will be included is "filename_en"
You must provide a version of the file for each locale found in the data folder, even if it is simply a copy of the english one.

--Example--
For example, a [[type:set]] might look like this:
>game: magic
>style: new
>card:
>	name: My Card
>	type: Creature
>card:
>	name: Another card
