Openlaszlo开发使用工具.docx

Openlaszlo开发使用工具1.?Overview LZX source files are text files. Any standard text editor such as Notepad (on Windows) or TextEdit (on MacOS) can be used to edit them. 1.1.?XML Editors LZX source files are a particular type of text file: they are XML files. An XML-aware editorsuch as Eclipse, /products/bbedit/index.shtmlBBEdit, or /software/emacs/emacs.htmlEmacs(with http://www.lysator.liu.se/projects/about_psgml.htmlpsgml-mode or /download/nxml-mode ) will provide additional editing facilities such as automatic indentation, syntax highlighting (coloring markup characters such as and tag names such as canvas ), and well-formedness checking (letting you know when you have an unbalanced or quotation mark). To configure an XML-aware editor to edit LZX files, you must configure it to edit those files in XML mode. This is done by registering the lzxextension with the XML mode of the editor. How to do this depends on the exact editor; this chapter gives instructions for some popular editors. 2.?XML Schema An XML schemalists the tag and attribute names that can occur within an XML document. Many XML editing tools are schema-aware. These tools can associate an XML document with a schema file, and use the schema file for code completion(to complete a tag or attribute name, or suggest a list of valid attribute values) and validation(to indicate invalid tag or attribute names within the editor, so that you dont have to wait until you compile the file). The method for associating an XML document with a schema file depends on the editor. This chapter gives instructions for some popular editors. 2.1.?Types of Schema There are three types of schemas in popular use: DTDs, XSD, and RNG (and its associated format RNC). The LZX schema is distributed in each of these formats. They can be found in the lps/toolsdirectory. A Document Type Definition(DTD) is the oldest type, and is recognized by the most editors. Unfortunately, the DTD format is very weak compared with the other schema descrip