export type ReadlineVariables = ReadonlyMap<string, string>;

/** Parse canonical `bind -v` / `set name value` output. */
export function parseReadlineVariables(source: string): ReadlineVariables {
  const variables = new Map<string, string>();
  for (const rawLine of source.split(/\r?\n/u)) {
    const line = rawLine.trim();
    if (line.length === 0 || line.startsWith("#")) continue;
    const match = line.match(/^set\s+(\S+)\s+(.*)$/u);
    if (match !== null && match[1] !== undefined)
      variables.set(match[1], match[2] ?? "");
  }
  return variables;
}