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RE: Selecting case insensitively
- To: "'Jeni Tennison'" <jeni at friday dot u-net dot com>
- Subject: RE: Selecting case insensitively
- From: "Doug Howell" <doug at creativemeasures dot com>
- Date: Sun, 13 Aug 2000 15:18:46 -0400
- Cc: <XSL-List at mulberrytech dot com>
- Reply-To: xsl-list at mulberrytech dot com
Thanks, Jeni. You're right, I did mean xsl:apply-templates. Thanks for the
suggestion. I hadn't read up on the translate function yet, so thanks so
much for pointing out this possibility. I'll try it out and let you know.
Here is the function I'm using in the HTML page which loads the XML/XSL
docs, followed by the XSL code:
******************************
function select(strSearchTerm) {
// possible parameter passed to this function:
'/glossary/entry[contains(\'name\',\'z\')]'
// get text typed by user
if (strSearchTerm == ""){
var strNodeToSelect = "/glossary/entry"; // if user hasn't typed anything,
show all entries
}
else { // otherwise, get all entries that match what the user typed
var strNodeToSelect = "/glossary/entry[contains(term,'" + strSearchTerm +
"')]";
//alert(strNodeToSelect);
}
// get a reference to the 'select' attributes from
// the 'xsl:apply-templates element' in the root template
var objSelectNode =
gobjXSL.selectSingleNode("//xsl:apply-templates/@select");
// change the attribute value to the specified XPath value
objSelectNode.nodeValue = strNodeToSelect;
// perform the transformation
strResult = gobjXML.transformNode(gobjXSL);
// and update the contents of the DIV element
gobjResults.innerHTML = strResult;
}
**************************
<xsl:template match="/">
<xsl:apply-templates select="/glossary/entry">
<xsl:sort select="term" order="ascending"/>
</xsl:apply-templates>
</xsl:template>
-----Original Message-----
From: Jeni Tennison [mailto:jeni@friday.u-net.com]
Sent: Friday, August 11, 2000 3:47 PM
To: Doug Howell
Cc: XSL-List@mulberrytech.com
Subject: Re: Selecting case insensitively
Doug,
>I'm developing an XML glossary, and want to update the "select" attribute
of
>the xsl:template based on what people type (a few characters) in a search
>text input field. Is there any way to select case-_in_sensitively? Do I
need
>to write functions which create different mixed-case versions of what's
>typed, and then use these versions with "or" in the select
predicate/filter?
>Or is there an easier way (I hope)?
I'm not exactly sure what you're doing: there's no 'select' attribute on
xsl:template, for example (you probably mean xsl:apply-templates?).
One good method for testing in a case-insensitive way is to translate both
the things you're testing into lowercase (or uppercase) and testing for
equality or whatever with the translated strings.
Define variables for uppercase and lowercase letters:
<xsl:variable name="lowercase" select="'abcdefghijklmnopqrstuvwxyz'" />
<xsl:variable name="uppercase" select="'ABCDEFGHIJKLMNOPQRSTUVWXYZ'" />
Then use the translate() function to translate the two things you're
comparing into lowercase and compare them:
translate($word1, $uppercase, $lowercase) =
translate($word2, $uppercase, $lowercase)
You can put this test within a predicate in an XPath, of course.
I hope that approximates to what you were after,
Jeni
Dr Jeni Tennison
Epistemics Ltd * Strelley Hall * Nottingham * NG8 6PE
tel: 0115 906 1301 * fax: 0115 906 1304 * email:
jeni.tennison@epistemics.co.uk
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