Calculation Carrying Document Processing Language and its Application

我们的研究旨在设计一种支持所谓计算承载机制的文档处理语言。我们关于可编程结构化文档（PSD）的新颖思想允许我们在文档中包含用于处理本身的转换代码。这个特性已经通过几个例子进行了演示，包括TreeCalc和交互式文档（iddocument）。TreeCalc是一个文档，其中的组件可能包含来自文档中描述的其他组件的计算值。iddocument使我们能够描述动态文档，这些文档可以根据读者的输入改变其内容。我们在这个项目中的主要贡献是建立了一个结构化文档双向转换的新框架。结构化文档经常根据需求转换成多种形式。实现这一需求的最常见方法是为正变换及其逆变换（即向后变换）编写代码。反转代码对于在转换后的文档上执行可能的更改是必需的。在这种情况下，双向转换使我们不必为向后转换编写代码，向后转换是由向前转换自动生成的。我们开发了一个名为BiXJ的Java库，用于XML文档的双向转换，并制作了实际应用程序来演示转换的有效性。

Our research aims at designing a language for document processing which supports so-called calculation carrying mechanism. Our novel idea of Programmable Structured Documents (PSD) allows us to include transformation code in the document for processing itself. This feature has been demonstrated by several examples including TreeCalc and Interactive Documents (iDocument). The TreeCalc is a document of which components may contain calculated values from other components described in the document. The iDocument enables us to describe dynamic documents which may change their contents according to the input from the reader. Our main contribution of this project is, among others, establishment of a new framework of Bi-directional transformation of structured documents. Structured documents are transformed so often to become several forms according to the requirement. Most common approach to this requirement is to write code for forward transformation and its inverse, that is, backward transformation. The code for inversion is necessary for possible changes performed on the transformed document. In this context, Bi-directional transformation frees us from writing code for backward transformation, which is automatically generated from the forward transformation. We developed a Java library called BiXJ for bi-directional transformation of XML documents, and made practical applications for demonstrating the effectiveness of the transformation.