Setting up the system on your account

The XMG-tools are part of a virtual machine (VM), that needs to be startet with VirtualBox.

• Start the VM xmg&tulipa.
• At some point a login screen appears: user name = xmguser, password = xmguser
• Open a terminal and type:

  $ cd xmg 

$ MetaTAG gimpl-xtag-1.xmg

The layout of XMG source files

$ less gimpl-xtag-1.xmg

It contains a small metagrammar for the alphanx0V tree template, i.e. a transitive verb in base order.

The XMG source file basically has four sections:

• Declarations
• Descriptions of tree fragments
• Descriptions of tree templates
• Evaluation statements

Declarations

In the first section, types, properties and features are specified.

• "Types" are XMG's data types.
• "Properties" specify the properties of nodes as a whole, e.g. whether they are footnodes or substitution nodes.
• "Features" are TAG-features inside nodes.

Descriptions of tree fragments and tree templates

• declare: declaration of used variables, e.g. ?NP.
• export: Which of the variables are visible outside?
• Note: Variables can identify nodes or class instantiations.
• Nodes can only be defined inside the <syn>-dimension.
• Classes can only be instantiated outside the <syn>-dimension.

Evaluation

valuation alphanx0V

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