XML OutlinerXML Outliner<oXygen/> comes along with a powerful outliner which is automatically synchronized
with the document changes. The document tree structure is presented as the document is
edited. The modified element is immediately revealed and selected in the outliner.
Also an element can be selected in the text editor by clicking the corresponding node
in the outliner. The outliner uses an extremely fast and robust parser being able to
handle XML documents that are not well-formed. The Outline panel, located in the bottom left part of the main editor window
offers the following features: Document OverviewThe XML outliner displays a general tag overview of the current edited XML
Document. It shows the hierarchical dependencies between the elements, making it
easier for you to see the structure of the document. The outliner presents a short text that describes each element from the tree.
The description is composed of the value of the first attribute and the first words
from the text content of the rendered element. The buttons from the outliner toolbar
allow you to filter out the attribute and the text values. Modification Follow-upWhen editing, the outliner dynamically follows the introduced modifications
scrolling to the node which is currently being modified. This gives you better
insight on how the document is affected by the modifications. Element SelectionThe XML outliner can also be used to search for a specific element location and
content in the edited document. When you select a node in the outliner tree, the XML
document is scrolled to the position of the selected element. Moreover, the content
of the tag is selected in the document so you can copy and paste it in other parts
of the document. Filtering Support in the Outline ViewYou can control what
elements are displayed in the Outline view by typing element names into a filter
box. For example, entering the element name "figure" when editing a DocBook article
results in getting immediately a short summary of all the figures from your
document. The next image shows the filtered outliner
as a tree. There are presented only the elements that are parents or children of the
selected elements. The selected elements are boldfaced. Error Markers in the Outline ViewTo make the XML validation errors and warnings easier to
spot, the Outline view marks the XML elements having problems with a red or yellow
color and with a corresponding icon. More details about the error are presented in the tool-tip. | 
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