@wordpress/hooks/build-module/validateNamespace.js

WordPress hooks library.

/**
 * Validate a namespace string.
 *
 * @param {string} namespace The namespace to validate - should take the form
 *                           `vendor/plugin/function`.
 *
 * @return {boolean} Whether the namespace is valid.
 */
function validateNamespace(namespace) {
  if ('string' !== typeof namespace || '' === namespace) {
    // eslint-disable-next-line no-console
    console.error('The namespace must be a non-empty string.');
    return false;
  }
  if (!/^[a-zA-Z][a-zA-Z0-9_.\-\/]*$/.test(namespace)) {
    // eslint-disable-next-line no-console
    console.error('The namespace can only contain numbers, letters, dashes, periods, underscores and slashes.');
    return false;
  }
  return true;
}
export default validateNamespace;
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