## The GIR XML format The GIR XML format — The GIR XML format |

This chapter describes the GIR XML markup format. This describes exported C API, including documentation. It may contain installation-specific data, such as library filenames which may differ between platforms.

### api node

The root node of all GIR documents is the api node. Possible children: namespace.

Example 4. A GIR fragment showing an api node

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    <api version="1.0">
      <namespace/>
    </api>

### namespace node

Parent node: api. Possible children: callback, class, function. interface.

Example 5. A GIR fragment showing an namespace node

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    <api version="1.0">
      <namespace="Gtk">
         <class/>
         <function/>
      </namespace>
    </api>

### class node

Parent node: namespace. Possible children: constructor, field, method, property.

Example 6. A GIR fragment showing an class node

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    <api version="1.0">
      <namespace="Gtk">
        <class name="Widget">
           <constructor/>
           <field/>
           <method/>
           <property/>
        <class>
      </namespace>
    </api>

### interface node

Parent node: namespace. Possible children: field, method, property.

Example 7. A GIR fragment showing an interface node

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    <api version="1.0">
      <namespace="Gtk">
        <interface name="Buildable">
           <field/>
           <method/>
           <property/>
        <interface>
      </namespace>
    </api>

### function node

Parent node: namespace.

Example 8. A GIR fragment showing an function node

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    <api version="1.0">
      <namespace="Gtk">
        <function name="init">
        </function>
      </namespace>
    </api>