4.8. W3C XSL event

发布时间 :2023-12-21 23:00:03 UTC      

W3C began to develop XSL due to the need for an XML based style sheet language.

The XSL language consists of three parts: XSLT, XPath and XSL formatting objects.

4.8.1. XSL tutorial

To learn more about XSL, please read our XSL tutorial.

4.8.2. XSL version

XSL 1.0

As a W3C recommendation, XSL 1.0 was released on October 15, 2001 as a language for expressing stylesheets. It consists of three parts: XSLT, XPath, and XSL formatting objects.

XSLT 1.0

XSLT 1.0 became the W3C recommendation on November 16, 1999. XSLT is a language used to convert XML documents into other XML documents.

XSLT 2.0

XSLT 2.0 became a W3C recommendation on January 23, 2007.

XSL-FO (XSL formatted object)

XSL formatting object is a vocabulary used to specify formatting semantics. Formatting refers to the process of transforming the result of an XSL transformation into a suitable reader or listener. Although there is no separate W3C document for XSL formatting objects, a description can be foundin the XSL 1.0 recommendation.

4.8.3. W3C XSL specification and timeline

Standard

Draft / proposal

Recommended time

XSL 1.0

  1. Oct 2001

XSL 1.1

  1. Dec 2006

XSLT 1.0

  1. Nov 1999

XSLT 2.0

  1. Jan 2007

XSLT 2.0 Requirements

  1. Feb 2001

Principles, Technologies, and Methods of Geographic Information Systems  102

In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress.