/// <summary>
/// Initializes a new FixedLengthReader with the given schema.
/// </summary>
/// <param name="reader">A reader over the fixed-length document.</param>
/// <param name="schemaSelector">The schema selector configured to determine the schema dynamically.</param>
/// <param name="options">The options controlling how the fixed-length document is read.</param>
/// <exception cref="ArgumentNullException">The reader is null.</exception>
/// <exception cref="ArgumentNullException">The schema selector is null.</exception>
public FixedLengthReader(TextReader reader, FixedLengthSchemaSelector schemaSelector, FixedLengthOptions options = null)
: this(reader, null, options, false)
{
this.schemaSelector = schemaSelector ?? throw new ArgumentNullException(nameof(schemaSelector));
}
public FixedLengthSchemaSelectorWhenBuilder(FixedLengthSchemaSelector selector, Func <string, bool> predicate)
{
this.selector = selector;
this.predicate = predicate;
}