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### 11.3 The library tree-buffer.el

The library tree-buffer.el is an ECB-independent library written completely in emacs lisp and can be used also by other applications than ECB. But the main purpose of tree-buffer.el is to offer a small but powerful API to create new tree-buffers for ECB, add new tree-nodes to a tree-buffer and thus use such a tree-buffer to display arbitrary information structured by a tree.

This chapter is for emacs-lisp-programmers and describes how to create a new tree-buffer, how to add new tree-nodes to a tree-buffer (includes removing and updating already existing tree-nodes) and how to use the offered tree-buffer- and tree-node-APIs.