Script to add description and keywords to files from text file

Question

Can anyone write something up for me? I will admit I cannot do it myself, I do not know Javascript.
I need to add keywords and a description to 1000's of images. I have a text file formatted as such for each 100 images. The script would need to ask for an input file (or I can hardcode the path into the script) and then apply to the current folder of images shown in bridge.
Text file example:
1000 - Bright Sunset Over City. (sun;city;sky;mountain;) .
1001 - Dawn Behind Mountain And Lake. (sun;mountain;water;sky;) .
1002 - Bright Red Sunset, Light Edged Clouds. (sun;sky;tree;clouds;) .
1003 - Tree Framing Sunset Over Bay. (tree;sun;lake;bay;) .
1004 - Sun Behind Gull On Pilings. (seagull;sun;sea;pilings;) .
images are named 1000.tif, 1001.tif, 1002.tif etc
Running on a Mac with CS3 and CS4.
Thanks,
Chris

Answer 1

Hi Paul,
This is nice example, but your script incorrectly sets both dc:description and dc:subject as ordered arrays. Description should be an alt-text type property, and subject is an unordered array (or 'bag'). Some software might not tolerate the incorrect XMP data types.
Here's an example showing the wrong and write way to set these two properties using the XMP Script API:
// load the library
if (ExternalObject.AdobeXMPScript == undefined) {
    ExternalObject.AdobeXMPScript = new ExternalObject("lib:AdobeXMPScript");
var Desc = "Test Description";
var Keys = ["One","Two","Three"];
// The wrong way to set the Description. and Keywords...
var bogusXmp = new XMPMeta();
bogusXmp.appendArrayItem(XMPConst.NS_DC, "description", Desc, 0,XMPConst.ARRAY_IS_ORDERED);
for(var s in Keys){
      bogusXmp.appendArrayItem(XMPConst.NS_DC, "subject", Keys[s], 0,XMPConst.ARRAY_IS_ORDERED);
$.writeln( bogusXmp.dumpObject() );
// The correct way to set the Description and Keywords
var correctXmp = new XMPMeta();
correctXmp.setLocalizedText( XMPConst.NS_DC, "description", null, "x-default", Desc );
for(var s in Keys){
      correctXmp.appendArrayItem(XMPConst.NS_DC, "subject", Keys[s], 0,XMPConst.PROP_IS_ARRAY);
$.writeln( correctXmp.dumpObject() );
Thanks,
David