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ARexxXml -------- Version: 1.1 Author: Joakim NordstrÃ¶m Date: 2009-12-03 Requirements: OS4, expat.library, uni.library, [http-handler] What is it? ----------- ARexxXml is an ARexx interface for reading XML files. How does it work? ----------------- When started, ARexxXml creates an ARexx-port, AREXXXML. Assume a XML-file like below: <test> <mojo temp="foo">Pop<mojo/> <mojo temp="bar">Funk<mojo/> </test> Now, with one simple ARexx-command: GETTAG "test.mojo(temp)" we would get the value "foo" which is the attribute "temp" of element "mojo". Instructions: ------------- ArexxXml takes one optional argument: NEWPORT/S Should the ARexx-port create a new ARexx-port, like AREXXXML.1, AREXXXML.2 etc, or should AREXXXML always (tried to) be opened. The default is to always use AREXXXML. The ARexx-port support these commands: LOADXML FILE/F Loads an XML-file into memory. Relative to ARexxXml home-drawer. GETTAG TAG/F Tries to retrieve a tag-structure from the XML-file. Each element is one string, child elements are preceded by a point. The content of <info> in test.xml would be returned with the command tag-string "test.info". Attributes are given in parentheses. the "temp" attribute of tag <mojo> would be "test.mojo(temp)" Multiple tags can be iterated with a -notation and an index, starting at 0. The <mojo>-tag with content "FUNK" could be reached with "test.mojo", and its temp-attribute with "test.mojo(temp)". The number of multiple tags can be returned with the special "length"-index. "test.mojo[length]" would in this case return 2. If an element can't be found, the result code 5 is returned. CLOSE Closes the XML file and removes it from memory. After a CLOSE, only the file and its resources are freed, the ARexx-port and program are still in memory. QUIT Quits ArexxXml and removes the ARexx-port. This quits and removes the entire ARexx-port and program. Each command can return these codes: Code Error 5 Element not found 10 You forgot to supply tag in GETTAG-command 16 The XMl isnt valid 17 No file was loaded when trying to call "GETTAG" 18 File couldn't be found 19 File couldn't be read 20 Couldn't allocate memory Examples: --------- A few examples are provided in the ExampleScripts drawer: GMail.rexx Gets the first 20 email in your gmail inbox, using the GMail ATOM feed. This script requires http.handler from os4depot.net (network/misc/httphandler.lha) by Chris Young. ViewASX.rexx Reads asx-files and starta mplayer for viewing. Requires MPlayer. GetYouTube.rexx Retrieves titles from YouTube. Also requires http-handler. (See GMail.rexx) GetApps.rexx Lists all programs you have started. Installation: ------------- Copy ARexxXML to path. Requirments: ------------ Make sure you have expat.library in Libs (http://os4depot.net/share/development/library/misc/expat.lha). For UTF-8 decoding, you must have uni.library installed (http://os4depot.net/share/library/unilibdev.lha). To handle URLs you need HTTP-handler (really not needed by ARexxXML, but nice to use in scripts) (http://os4depot.net/share/library/unilibdev.lha). Release notes: -------------- v 1.1 2009-12-03 * Added support for Unicode * Fixed so files larger than 8k can be read (doh!) * URL-support can be achieved by using HTTP-handler (see examples) * Added NEWPORT argument. v 1.0 2009-11-11 * Initial release Todo: ----- * Make it possible to traverse the XML-file tag by tag in ARexx Bugs: ----- Files have to be fully resolved, ie, DH1:Temp/test.xml, or relative to the actual ArexxXml-binaries startpath.
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