private static string SubstitutePlaceholders(string template, Arr <SimParameter> parameters)
{
var nSubstitutions = parameters.Count;
var parts = template.Split(new string[] { "${" }, StringSplitOptions.None);
RequireEqual(parts.Length, nSubstitutions + 1, "Incompatible parameter set and template: non-equal substitutions");
if (0 == nSubstitutions)
{
return(template);
}
var sb = new StringBuilder(parts[0]);
for (var i = 1; i < parts.Length; ++i)
{
var part = parts[i];
var posRBrace = part.IndexOf('}');
RequireTrue(posRBrace.IsFound(), "No closing } in section: " + part);
var name = part.Substring(0, posRBrace).Trim();
var parameter = parameters
.FindParameter(name)
.AssertSome($"Template specifies unknown parameter: {name}");
sb.Append(parameter.GetRValue());
sb.Append(part[(posRBrace + 1)..]);