Finding Embedded Text

I am looking for a way to do searches for a particular type of text; any embedded in square brackets: [test1]. A normal search & replace will not work: I need to evaluate the contents of each tagged area before determining what to replace it with.
How can I do a find based on the start bracket and end bracket (length of text inside tag will vary), evaluate the text, and then replace the bracketed area?
Thanks!

Hi
Thanks for your inquiry. I think that you can use regular expressions. Also you can can use ReplaceEvaluetor. For example see the following code:

public void Test214()
{
    // Open document
    Document doc = new Document(@"Test214\in.doc");
    // Create rexeg
    Regex regexFindPlaceholder = new Regex(Regex.Escape("[") + @"(?\S+)" + Regex.Escape("]"));
    // find and replace
    doc.Range.Replace(regexFindPlaceholder, new ReplaceEvaluator(Replace214), false);
    // Save output document
    doc.Save(@"Test214\out.doc");
}
ReplaceAction Replace214(object sender, ReplaceEvaluatorArgs e)
{
    switch (e.Match.Groups["name"].Value)
    {
        case "FirstName":
            e.Replacement = "Alexey";
            break;
        case "LastName":
            e.Replacement = "Noskov";
            break;
    }
    return ReplaceAction.Replace;
}

The document that I used for testing contains [FirstName] and [LastName] placeholders.
I hope this could help you.
Best regards