# Dev/Config files/Syntax

From XOWA: the free, open-source, offline wiki application

## Syntax

- Syntax follows an object-oriented convention.

  For example, `app.wikis('en.wikipedia.org')` can be expanded to
    find an object that accepts the "app" message in the current context
    find an object that accepts the "wikis" message in the "app" context
    pass the last object a message that has one argument with a value of 'en.wikipedia.org'

- Note that instances/methods can return itself. This allows chaining multiple message calls.

  For example, in `app.wikis.get('en.wikipedia.org').files.cfg_download`, enabled_ and redownload_ both return the cfg_download object. This allows the following call

    app.wikis.get('en.wikipedia.org').files.cfg_download
    .enabled_('y')        // returns cfg_download
    .redownload_('none')  // uses the cfg_download from .enabled_ and calls .redownload_
    ;

Note that the above is the same as the following:

    app.wikis.get('en.wikipedia.org').files.cfg_download.enabled_('y');
    app.wikis.get('en.wikipedia.org').files.cfg_download.redownload_('none');

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