(function() {
  /**
  Defines a regex suitable for matching FRESH versions.
  @module file-contains.js
  */
  // Set up a regex that matches all of the following:

  //   - FRESH
  //   - JRS
  //   - FRESCA
  //   - FRESH@1.0.0
  //   - FRESH@1.0
  //   - FRESH@1
  //   - JRS@0.16.0
  //   - JRS@0.16
  //   - JRS@0

  // Don't use a SEMVER regex (eg, NPM's semver-regex) because a) we want to
  // support partial semvers like "0" or "1.2" and b) we'll expand this later to
  // support fully scoped FRESH versions.
  module.exports = function() {
    return RegExp('^(FRESH|FRESCA|JRS)(?:@(\\d+(?:\\.\\d+)?(?:\\.\\d+)?))?$');
  };

}).call(this);

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