WORD_LAST        1811 lib/regcomp.c  	      token->opr.ctx_type = WORD_LAST;
WORD_LAST        2316 lib/regcomp.c  	   & (WORD_DELIM | NOT_WORD_DELIM | WORD_FIRST | WORD_LAST))
WORD_LAST        2327 lib/regcomp.c  	      token->opr.ctx_type = WORD_LAST;