Subject: XSL Help Requested From: Youngmee Kim <youngmeekim@xxxxxxxxxx> Date: Sun, 02 May 1999 22:43:18 -0500 |
I am one of the "newbies" to XML/XSL, having worked with XSL seriously for a few weeks to a few months depending on what's meant by serious. I'd appreciate any help with the questions I have. I'll explain the context of my questions first. We have translated our data model in XML and the goal is to generate Web interface forms to effect changes in the data. The data happens to be in a relational database, which isn't really relevant to my questions. The data model is generic for all applications (what we call services), but the forms are application (service) specific. The forms obviously have to have the appropriate labels for field names etc. Currently, I am trying to specify the generic rules to produce certain type of HTML tags for different data types in XSL and process that specification with one type of service specific data(1) to produce the service specific XSL specification. That (intermediate) service specific XSL specifications are processed again with another type of service specific data(2) to produce the final HTML files. So the steps are generic XSL spec -> application specific XSL spec -> HTML files. I am using LotusXSL0.16.5 as the XSL processing engine and so far have tried to do everything with XSL spec without writing any additional Java code interfacing to LotusXSL. I could if I have to - I want to know if that's what I need to do. The generic specification looks something like the following: <?xml version="1.0"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/TR/WD-xsl" xmlns:qxsl="quote:http://www.w3.org/TR/WD-xsl" xmlns="http://www.w3.org/TR/REC-html40" result-ns="qxsl"> <xsl:template match="/"> <xsl:pi name="xml">version="1.0"</xsl:pi> <qxsl:stylesheet xmlns:xsl="http://www.w3.org/TR/WD-xsl" xmlns="http://www.w3.org/TR/REC-html40" result-ns=""> <qxsl:template match="/"> <HTML> <HEAD> <TITLE>Forms</TITLE> <SCRIPT LANGUAGE="JAVASCRIPT"> <!-- Some generic Java Scripts for Validation go here for now. --> function checkNumericRange(min, max, obj) { temp = obj.value; if ( (temp < min) || (max < temp) ) { alert("Invalid input!"); return; } obj.value = temp; } </SCRIPT> </HEAD> <BODY> <qxsl:apply-templates/> </BODY> </HTML> </qxsl:template> <qxsl:template match="Svc"> . . . </qxsl:stylesheet> </xsl:template> . . . <xsl:template match="ViewAttr"> <qxsl:template match="..."> . . <qxsl:when test=".[@satType='string']"> <qxsl:choose> <qxsl:when test=".[@maxLength]"> <TD><INPUT type="TEXT" name="{@vatName}" size="<@maxLength>" /></TD> </qxsl:when> . . </qxsl:template> </xsl:template> </xsl:stylesheet> My first question has to do with the "<" in the Java fuction. The XSL processor complains that I need an element there. Enclosing the JavaScript function in <![CDATA[ function .... ]]> worked - LotusXSL stripped the <![CDATA[ ]]> when it produced my service specific XSL and it got into the HTML files as is. Are there other (better) ways of doing this? My second question has to do with the <INPUT ...> line. I want the input line to show up in the intermediate XSL spec as <INPUT type="Text" name="the_value_of_attribute_vatName" size="{@maxLength}" /> In other words, I can evaluate @vatName because it is available in the first set of data to produce the intermediate spec, but the value of @maxLength is available in the data(2) used to produce the final HTML files. I have not found a way to do this. My third question is about including and importing files into the XSL specification. For example, maybe I can put the javascript functions I need in (a) separate file(s) and generate lines to include them. However, I don't fully understand how to use these. I did read the spec (Dec 1998), but I was wondering if there is more explantory text and examples somewhere. For example, include, I understand is a textual replacement. Then, does the included file have to be a fully specified xsl specification starting with <?xml version ..> and </xsl:stylesheet ..> etc.? I think my questions are basic, and for some reason, couldn't really find the answers. Youngmee Kim
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