Function matcher

modules/polaris/src/main/ts/ephox/polaris/api/PathPattern.ts:49–66

(path: string)

  const { regex, paramNames } = compilePathPattern(pattern);

  const matcher = (path: string): Optional<Record<string, string>> => {
    const match = regex.exec(path);

    if (Type.isNullable(match)) {
      return Optional.none();
    }

    const result: Record<string, string> = {};
    if (Type.isObject(match.groups)) {
      for (const name of paramNames) {
        if (Type.isString(match.groups[name])) {
          result[name] = match.groups[name];
        }
      }
    }

    return Optional.some(result);
  };

  return matcher;
};