/sources/plan9/sys/src/libregexp/
       385 2002-10-24 mkfile
      2069 1999-12-12 regaux.c
      9959 2010-07-24 regcomp.c
      1786 2010-07-24 regcomp.h
       210 1999-12-12 regerror.c
      4977 2008-01-13 regexec.c
      1108 2010-07-24 regsub.c
      4676 2008-01-13 rregexec.c
      1156 2001-04-26 rregsub.c