WORD_FIRST       1838 lib/regcomp.c  	      token->opr.ctx_type = WORD_FIRST;
WORD_FIRST       2327 lib/regcomp.c  	   & (WORD_DELIM | NOT_WORD_DELIM | WORD_FIRST | WORD_LAST))
WORD_FIRST       2336 lib/regcomp.c  	      token->opr.ctx_type = WORD_FIRST;