Search in XML <flowable:eventInParameter>

Program.cs

using Spectre.Console;
using System.Text.RegularExpressions;

foreach (var file in new DirectoryInfo(@"./bpmn-models").GetFiles("*.bpmn"))
{
    ProcessFile(file);
}

void ProcessFile(FileInfo file)
{
    using var stream = file.OpenRead();
    using var reader = new StreamReader(stream);
    var text = reader.ReadToEnd();

    var matches = Regex.Matches(text,
        @"<flowable:eventInParameter.*(&quot;(?<label>(\w+\s+.\w*)+)&quot;)(?=\:\s&quot;\${(?<varname>.*)\}&quot;).*flowable:eventInParameter>");

    var table = new Table();
    table.AddColumn(file.Name);
    table.AddColumn("Label");
    table.AddColumn("Variable Name");

    foreach (Match match in matches)
    {
        table.AddRow(
            match.ToString(), 
            match.Groups["label"].ToString(),
            match.Groups["varname"].ToString());
    }

    if (matches.Any())
    {
        AnsiConsole.Write(table);
    }
}