Resolving Layout Interdependency with Presentational Variiables

Lumley, John ; Gimson, Roger ; Rees, Owen

HP Development Company

关键词: XML;    XSLT;    SVG;    document construction;    functional programming;   

RP-ID  :  HPL-2006-107

学科分类：计算机科学（综合）

美国|英语

来源: HP Labs

【 摘 要 】

In the construction of variable data documents, the layout of component parts to build a composite section with heterogeneous layout functions can be implemented by a tree-evaluating layout processor. This handles many cases with well-scoped structure very smoothly but becomes complex when layout relationships between components cut across a strict tree. We present an approach for XML-described layouts based on a post- rendering set of single-assignment variables, analogous to XSLT, that can make this much easier, does not compromise layout extensibility and can be a target for automated interdependency analysis and generation. This is the approach used in the layout processor associated with the Document Description Framework (DDF). 3 Pages