def binary_regex(self):
        """Return the regex for the binary."""
        regex_base_name = (r'^(%(STUB_NEW)s|%(BINARY_NAME)s-.*\.%(LOCALE)s\.%(PLATFORM)s)')
        regex_suffix = {'linux': r'.*\.%(EXT)s$',
                        'linux64': r'.*\.%(EXT)s$',
                        'mac': r'.*\.%(EXT)s$',
                        'mac64': r'.*\.%(EXT)s$',
                        'win32': r'(\.installer%(STUB)s)?\.%(EXT)s$',
                        'win64': r'(\.installer%(STUB)s)?\.%(EXT)s$'}

        regex = regex_base_name + regex_suffix[self.platform]

        return regex % {'BINARY_NAME': APPLICATIONS_TO_BINARY_NAME.get(self.application,
                                                                       self.application),
                        'LOCALE': self.locale,
                        'PLATFORM': PLATFORM_FRAGMENTS[self.platform],
                        'STUB': '-stub' if self.is_stub_installer else '',
                        'STUB_NEW': 'setup' if self.is_stub_installer else '',
                        'EXT': self.extension}
Return the regex for the binary.