Called once during each stage of visiting a node. The visitation process will skip any nodes that this method inserts, as well as nodes that are deleted if they have not yet been visited.
The walker that is being used to visit the node.
The node being visited.
A descriptor of the stage of the visitation process: whether the function is being called for a visit before or after entering the node or one of its fields.
The index of the node field referred to by the stage, or -1 if the stage refers to the node itself.
This API is still under development and is subject to change. Copyright © Math I Can Do Solutions Incorporated and/or its licensors.
Function called while visiting document nodes with a Walker.