Parse `R{YYYY}` Reaffirmations

[ronaldtse]

I think these are Reaffirmations

# \(R\d+\) - revision?

ANSI/IEEE Std 101-1987(R2010) (Revision of IEEE Std 101-1972)
ANSI/IEEE Std 802.11, 1999 Edition (R2003)
IEEE Std 1106-2005(R2011) (Revision of IEEE Std 1106-1995)
IEEE Std 1184-2006(R2011) (Revision of IEEE 1184-1994)
IEEE Std 1344-1995(R2001)
IEEE Std 1458-2005 (R2010)
IEEE Std 1465-1998(R2004) [Adoption of ISO/IEC 12119: 1994(E)]
IEEE Std 1517-1999(R2004)
IEEE Std 1541-2002 (R2008)
IEEE Std 665-1995 (R2001) (Revision of IEEE Std 665-1987)
IEEE Std 771-1998 (R2009)
IEEE Std C135.61-1997(R2006)
IEEE Std C135.63-1998(R2006)
IEEE Std C57.13-1993(R2003) (Revision of IEEE Std C57.13-1978
IEEE Std C62.43-2005 (R2010) (Revision of IEEE Std C62.43-1999)
IEEE Std P762-2006(R2002)
ANSI C37.45-1981(R1992) (Revision of ANSI C37.45-1969)
ANSI C37.47-1981 (R1992) (Revision of ANSI C37.47-19969)
ANSI C37.53.1-1989 (R1996) (Revision of ANSI C37.53.1-1982)
ANSI C57.12.22-1993 (R1998)
ANSI C57.12.50-1981 (R1998)
ANSI C57.12.55-1987 (R1998)

e.g. ANSI/IEEE Std 101-1987(R2010) (Revision of IEEE Std 101-1972) https://standards.ieee.org/ieee/101/258/

[ronaldtse]

Also:

ANSI N42.18-2004 (Reaffirmation of ANSI N42.18-1980; Redesignation of ANSI N13.10-1974)
IEEE Std 218-1956 (Reaffirmed 1980, 56 IRE 28.S2)
IEEE Std 671-1985/Cor 1-2010 [Corrigendum to IEEE Std 671-1985 (Reaff 2008)]
IEEE Std 802.11e-2005 (Amendment to IEEE Std 802.11, 1999 Edition (Reaff 2003)
IEEE Std 802.11g-2003 (Amendment to IEEE Std 802.11, 1999 Edn. (Reaff 2003) as amended by IEEE Stds 802.11a-1999, 802.11b-1999, 802.11b-1999/Cor 1-2001, and 802.11d-2001)
IEEE Std 802.11h-2003 (Amendment to IEEE Std 802.11, 1999 Edn. (Reaff 2003))
IEEE P802.11e/D6.0, November 2003 (Draft Amendment to IEEE Std 802.11, 1999 Edition (Reaff 2003))