Syntax Tags in Word template

Aspose.Words Product Family
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1

In Aspose.Word 21.5. Is there a quick way to get all of the syntax tags (i.e. <<[tag]>>) in a Word Document Template?

2

@tkurian

To extract all syntax tags (like <<[tag]>>) from a Word document template using Aspose.Words, you can utilize regular expressions since there is no built-in method specifically for this purpose.

Here’s a regular expression pattern you can use to find the LINQ tags in your document:

(?<=<<\\s|\\w*\\\\[|\\G)([^\\\\]\\\\[\\\\.]+)\\\\.(?=[^][]*\\\\])

This pattern will help you identify the tags formatted in the LINQ syntax. You can implement this in your code to search through the document’s text and extract the tags accordingly.

If you need further assistance or examples on how to implement this in your specific programming environment, feel free to ask!

Sources:
[1]: LINQ Template Syntax extract tags/retrieve content of each LINQ tag in template

3

@tkurian Unfortunately, LINQ Reporting Engine does not provide a functionality to get a list of template fields from a document at the moment. This feature was already requested, it was logged as WORDSNET-17454, but for now, its development is postponed. You will be notified through the forum thread, once it is implemented.

As a workaround, to find contents of simple expression tags, you can use Range.Replace functionality on a template document (without actual replacing) as follows:

DocumentBuilder builder = new DocumentBuilder();
builder.Write("Some text <<[Column1]>>, more text <<[Column2]>>, and some more text.");

ColumnNameCollector collector = new ColumnNameCollector();
Regex regex = new Regex(@"<<\[(.*?)\]>>");

builder.Document.Range.Replace(regex, "", new FindReplaceOptions(collector));

foreach (string columnName in collector.ColumnNames)
    Console.WriteLine(columnName);

Console.WriteLine(builder.Document.GetText().Trim()); // Prints the same text, it is not replaced.

internal class ColumnNameCollector : IReplacingCallback
{
    public ReplaceAction Replacing(ReplacingArgs args)
    {
        ColumnNames.Add(args.Match.Groups[1].Value);

        // We do not want to replace anything, so skip the match.
        return ReplaceAction.Skip;
    }

    internal List<string> ColumnNames { get; } = new List<string>();
}