backup_cur_idx   2840 maint/gnulib/lib/regexec.c   Idx subexp_num, backup_cur_idx, str_idx, null_cnt;
backup_cur_idx   2872 maint/gnulib/lib/regexec.c   backup_cur_idx = mctx->input.cur_idx;
backup_cur_idx   2981 maint/gnulib/lib/regexec.c   mctx->input.cur_idx = backup_cur_idx;