                         13 (0x000d)    for CR
                                10 (0x000a)    for LF
                              3338 (0x0d0a)    for CRLF
                                -2             for ANYCRLF
                                -1             for ANY
  PCRE_CONFIG_BSR           Indicates what \R matches by default:
                                 0             all Unicode line endings
                                 1             CR, LF, or CRLF only
  PCRE_CONFIG_POSIX_MALLOC_THRESHOL