OP_DUP_QUESTION 1872 maint/gnulib/lib/regcomp.c token->type = OP_DUP_QUESTION; OP_DUP_QUESTION 1916 maint/gnulib/lib/regcomp.c token->type = OP_DUP_QUESTION; OP_DUP_QUESTION 2269 maint/gnulib/lib/regcomp.c case OP_DUP_QUESTION: OP_DUP_QUESTION 2397 maint/gnulib/lib/regcomp.c || token->type == OP_DUP_QUESTION || token->type == OP_OPEN_DUP_NUM) OP_DUP_QUESTION 2541 maint/gnulib/lib/regcomp.c end = (token->type == OP_DUP_QUESTION) ? 1 : -1;