import Foundation

/// Detect a reference-style footnote definition line: `[fn:label] text…`. Returns the
/// label and the definition text, or nil if the line is not one.
func orgFootnoteDefinition(in line: String) -> (label: String, text: String)? {
    guard let match = line.firstMatch(of: /^\[fn:([A-Za-z0-9_-]+)\]\s+(.+)$/) else {
        return nil
    }
    return (String(match.1), String(match.2))
}