Substring Location in String

I am having a problem using substring to select/filter. The substring selection is not holding to the specified locations in the string. Instead, it finds any matching text in the entire string.
For reference, my web site intent is,
1. A single XML master data base contains all photographs for display. My XML data set does not have quotes.
2. Spry tabbed panels are used to select galleries (Spry regions) (e.g. roses, Big Sur Coast, etc) from the master data base. There are a dozen galleries.
3. Thumbnails of a gallery are displayed in the content panel.
4. Selecting a thumbnail displays a large view of the selected photo in a separate div (Spry detail region).
The galleries are filtered using spry:test, with the "subject" variable compared against a specified value (i.e. rose, Monterey, Salinas, etc.).
The "2010 Photographs" gallery is determined by the year of the photo. In the "name" variable, the first 6 digits are the date (month, day, year). I've set up the spry:test with substring as follows,
spry:test="'substring({name},5,2)'.search ('10 ') != -1;"
This is to obtain the 5th and 6th locations of "name" variable and compare it with the "10 ".
A sample of the "photo" node follows,
<photo>
<name>032010 Lover's Pt, Pacific Grove 02a web.jpg</name>
<width>599</width>
<height>400</height>
<thumbname>032010 Lover's Pt, Pacific Grove 02a thumbnail.jpg.</thumbname>
<thumbwidth>150</thumbwidth>
<thumbheight>100</thumbheight>
<subject>night</subject>
<description>West side of Lover's Point, Pacific Grove, Ca.; the surf was unusually calm. The glow reflecting on the clouds and the bay is from the town of Santa Cruz.</description>
</photo>
<photo>
<name>090609 Pelican over Pacific Grove 02a 8x10 web.jpg</name>
<width>500</width>
<height>400</height>
<thumbname>090609 Pelican over Pacific Grove 02a 8x10 thumbnail.jpg</thumbname>
<thumbwidth>125</thumbwidth>
<thumbheight>100</thumbheight>
<subject>animal</subject>
<description>Pelican caught in flight; using a flash, this photograph was taken at dusk; Pacific Grove, Ca.</description>
</photo>
Both of these nodes would be selected with the "10 " criteria. However the second one is not from the year 2010.
The full source code is shown below.
My search of these forums and the Internet have indicated that this should work. Please explain what I am missing or doing incorrectly in the code.
I thank you.
Scott
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>EnvisionMoore</title>
<style type="text/css">

</style>
<script src="SpryAssets/xpath.js" type="text/javascript"></script>
<script src="SpryAssets/SpryData.js" type="text/javascript"></script>
<script type="text/javascript">

</script>
<script type="text/javascript">
var dsdata = new Spry.Data.XMLDataSet("EM_photo.xml", "/gallery");
var dsphoto = new Spry.Data.XMLDataSet("EM_photo.xml", "gallery/photos/photo");
</script>
<script type="text/javascript">
function MM_callJS(jsStr) { //v2.0
return eval(jsStr)
</script>
<script src="SpryAssets/SpryTabbedPanels.js" type="text/javascript"></script>
<link href="SpryAssets/SpryTabbedPanels.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="wrapper">
<div id="leftColumn">
    <div id="TabbedPanels1" class="TabbedPanels">
      <ul class="TabbedPanelsTabGroup">
        <li class="TabbedPanelsTab" tabindex="0">Welcome</li>
        <li class="TabbedPanelsTab" tabindex="0">Mechanical Engineering</li>
        <li class="TabbedPanelsTab" tabindex="0">Photography</li>
      </ul>
      <div class="TabbedPanelsContentGroup">
        <div class="TabbedPanelsContent">
          <h1><br />
<br />
<br />
<br />Welcome!
<br />
          </h1>
        </div>
        <div class="TabbedPanelsContent">Mechanical Engineering - Content 2</div>
        <div class="TabbedPanelsContent"> 
          <div id="TabbedPanels2" class="TabbedPanels">
            <ul class="TabbedPanelsTabGroup">
              <li class="TabbedPanelsTab" tabindex="0">2010 Photographs</li>
              <li class="TabbedPanelsTab" tabindex="0">Roses</li>
              <li class="TabbedPanelsTab" tabindex="0">Calla Lilies</li>
              <li class="TabbedPanelsTab" tabindex="0">Other Blossoms and Leaves</li>
              <li class="TabbedPanelsTab" tabindex="0">Pacific Grove Beach</li>
              <li class="TabbedPanelsTab" tabindex="0">Monterey Harbor and Beach</li>
              <li class="TabbedPanelsTab" tabindex="0">Big Sur Coast</li>
              <li class="TabbedPanelsTab" tabindex="0">Salinas Valley</li>
              <li class="TabbedPanelsTab" tabindex="0">Animals</li>
              <li class="TabbedPanelsTab" tabindex="0">Night</li>
              <li class="TabbedPanelsTab" tabindex="0">Church</li>
              <li class="TabbedPanelsTab" tabindex="0">Other</li>
            </ul>
            <div class="TabbedPanelsContentGroup-2">
              <div class="TabbedPanelsContent-2">
                <div spry:region="dsphoto dsdata"> <img src="{dsdata::thumbnail/@base}{thumbname}" width = {thumbwidth}px height = {thumbheight}px spry:repeat="dsphoto" spry:test="'substring({name},5,2)'.search ('10 ') != -1;" ; onclick="dsphoto.setCurrentRow('{ds_RowID}');" /></div>
              </div>
              <div class="TabbedPanelsContent-2">
                <div spry:region="dsphoto dsdata"> <img src="{dsdata::thumbnail/@base}{thumbname}" width = {thumbwidth}px height = {thumbheight}px spry:repeat = "dsphoto" spry:test="'{subject}'.search (/rose/) !=-1;" onclick="dsphoto.setCurrentRow('{ds_RowID}');" /></div>
              </div>
              <div class="TabbedPanelsContent-2">
                <div spry:region="dsphoto dsdata"> <img src="{dsdata::thumbnail/@base}{thumbname}" width = {thumbwidth}px height = {thumbheight}px spry:repeat="dsphoto" spry:test="'{subject}'.search (/callalily/) !=-1;" onclick="dsphoto.setCurrentRow('{ds_RowID}');" /></div>
              </div>
              <div class="TabbedPanelsContent-2">
                <div spry:region="dsphoto dsdata"> <img src="{dsdata::thumbnail/@base}{thumbname}" width = "{thumbwidth}px" height = "{thumbheight}px" onclick="dsphoto.setCurrentRow('{ds_RowID}');" spry:repeat="dsphoto" spry:test="'{subject}'.search (/blossom/) !=-1;" /></div>
              </div>
              <div class="TabbedPanelsContent-2">
                <div spry:region="dsphoto dsdata"> <img src="{dsdata::thumbnail/@base}{thumbname}" width = "{thumbwidth}px" height = "{thumbheight}px" onclick="dsphoto.setCurrentRow('{ds_RowID}');" spry:repeat = "dsphoto" spry:test="'{subject}'.search (/^p/) !=-1;" /></div>
              </div>
              <div class="TabbedPanelsContent-2">
                <div spry:region="dsphoto dsdata"> <img src="{dsdata::thumbnail/@base}{thumbname}" width = {thumbwidth}px height = {thumbheight}px spry:repeat="dsphoto" spry:test="'{subject}'.search (/Monterey/) !=-1;" onclick="dsphoto.setCurrentRow('{ds_RowID}');" /></div>
              </div>
              <div class="TabbedPanelsContent-2">
                <div spry:region="dsphoto dsdata"> <img src="{dsdata::thumbnail/@base}{thumbname}" width = {thumbwidth}px height = {thumbheight}px spry:repeat="dsphoto" spry:test="'{subject}'.search (/bigsurcoast/) !=-1;" onclick="dsphoto.setCurrentRow('{ds_RowID}');" /></div>
              </div>
              <div class="TabbedPanelsContent-2">
                <div spry:region="dsphoto dsdata"> <img src="{dsdata::thumbnail/@base}{thumbname}" width = {thumbwidth}px height = {thumbheight}px spry:repeat="dsphoto" spry:test="'{subject}'.search (/Salinas/) !=-1;" onclick="dsphoto.setCurrentRow('{ds_RowID}');" /></div>
              </div>
              <div class="TabbedPanelsContent-2">
                <div spry:region="dsphoto dsdata"> <img src="{dsdata::thumbnail/@base}{thumbname}" width = {thumbwidth}px height = {thumbheight}px spry:repeat="dsphoto" spry:test="'{subject}'.search (/animal/) !=-1;" onclick="dsphoto.setCurrentRow('{ds_RowID}');" /></div>
              </div>
              <div class="TabbedPanelsContent-2">
                <div spry:region="dsphoto dsdata"> <img src="{dsdata::thumbnail/@base}{thumbname}" width = {thumbwidth}px height = {thumbheight}px spry:repeat="dsphoto" spry:test="'{subject}'.search (/night/) !=-1;" onclick="dsphoto.setCurrentRow('{ds_RowID}');" /></div>
              </div>
              <div class="TabbedPanelsContent-2">
                <div spry:region="dsphoto dsdata"> <img src="{dsdata::thumbnail/@base}{thumbname}" width = {thumbwidth}px height = {thumbheight}px spry:repeat="dsphoto" spry:test="'{subject}'.search (/church/) !=-1;" onclick="dsphoto.setCurrentRow('{ds_RowID}');" /></div>
              </div>
              <div class="TabbedPanelsContent-2">
                <div spry:region="dsphoto dsdata"> <img src="{dsdata::thumbnail/@base}{thumbname}" width = {thumbwidth}px height = {thumbheight}px spry:repeat="dsphoto" spry:test="'{subject}'.search (/other/) !=-1;" onclick="dsphoto.setCurrentRow('{ds_RowID}');" /></div>
              </div>
            </div>
          </div>
        </div>
        
      </div>
    </div>
</div>
<div id="header">
    <p>Envision Moore</p>
    <p>      Mechanical Engineering and Photography</p>
    <p>      Scott W. Moore</p>
</div>
<div id="selectedPhoto">
<div id="Selection" spry:detailregion = "dsphoto dsdata" >

<img src="Photo-Email/{name}" width = {width}px height = {height}px align="center" />
<br />
Description<br /><br />
<p> {dsphoto::email/base}{description} </p>
</div>
</div> 
</div> 
<script type="text/javascript">

</script>
</body>
</html>

Moore6931 wrote:
Ben
I thank you but the change of the starting location did not correct the problem. I copied your script and pasted it into the source code but the results were the same set of thumbnails; several of the thumbnails are prior to (20)10.
In considering the results, I decided to try,
spry:test="'{name}'.search ('10 ') != -1;"
This filter gave the same result as,
spry:test="'substring({name},4,2)'.search ('10 ') != -1;"
I found out that the "4,2" arguments of substring should be "4,6". Each of these arguments are locations; other substring functions have location and length.
I updated the filter to,
spry:test="'substring({name},4,6)'.search ('10') != -1;"
The filter result was not changed. Are the location arguments being ignored or overwritten by a default setting? The symptom is that the first location is "0" and the second location is omitted.
I thank you for your help. This is rather fascinating!
Scott
Howdy,
When you take a closer look at your at your code you will notice that you actually wrapped the substring function inside a string. So you are actually performing a search on:
'substring(contents,4,6)'
So what i would suggest is to do:
spry:test="'{name}'.substring( 4,6 ).search( '10' ) != -1 "
And if that doesn't work, try to use a function::syntax instead, see API: function::<function name>

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