[greenstone-users] Classifier macros

From Belanger, Arthur
DateTue Oct 13 08:00:02 2009
Subject [greenstone-users] Classifier macros
Hi.

I am trying to find a way to test in a classifier format statement (e.g. CL2Vlist) which level the current node is in. I have used [numleafdocs] to determine whether the current node is a document or a node but that is insufficient.

The only way that I have figured out thus far is to parse search.

Are there any macros that can be used to tell me where in the classifier list the current node is? That is, if search is CL2.3.10, the macro should tell me that I am at level 3 (or 2 depending on how you count). Similarly, if search is CL2.3, it should return 2 (or 1 dependiong on how you count). I haven't been able to identify such a macro.

So, I have written a javascript function to parse search and return the right number but I haven't been able to test against the value though I can display the value on the page. I have put the script in in the collection's extra.dm file. I call it in a macro (_Classifiernode_) but I can't test against it. I am not a javascript programmer so I am probably missing something rather simple.

Here is the javascript:

function CLfoot(CLstr) {
var classnode = new String(CLstr);
var classifier = classnode.split(".");
document.write (classifier.length);
}

Here is the macro:

_classifierNode_ {
<SCRIPT LANGUAGE="JavaScript" TYPE="TEXT/JAVASCRIPT">
CLnode("search");
</SCRIPT>
}

My format statement includes:

{if}{_classifierNode_ == 2,Second Level,Third Level)
_classifierNode_

Thus, if _cgiargdl_ = CL2.4, _classifierNode should be 2 and "Second Level" should be displayed.
If search = CL2.4.7, _classifierNode_ should be 3 and "Third Level" should be displayed

The _classifierNode_ line does produce the correct number but it is not actually the value of the macro.

So, what I would like is to have _classifierNode_ be either 2 or 3 as:
_classifierNode_ {2} or _classifierNode_ {3}

I suspect that the document.write statement is not the proper way to pass a value back and/or Greenstone does not support such dynamically generated macros.

Any help would be greatly appreciated. Thanks.

Thanks.

Arthur Belanger
Medical Library System Manager
ITS Academic Media & Technology
Yale University
PO Box 208065
New Haven, CT 06520-8065

(203) 785-6928
(203) 737-2859, fax

mailto:Arthur.Belanger@Yale.Edu
http://www.yale.edu/its/about/amt
http://info.med.yale.edu/library


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