| 摘要 |
Extensible markup language layout and rendering behaviors are disclosed. A core engine provides existing layout and rendering behaviors for a predetermined markup language, such as HTML. External components are designed to provide extended layout and/or rendering behaviors, in addition to the behaviors of the core engine. A mechanism, which can be part of the core engine, extends the existing behaviors with the behaviors of the external components. The behaviors of the external components can participate with the behaviors of the core engine.
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