tab_hline (t, TAL_2, 0, 1, 1);
tab_text (t, 0, 0, TAB_CENTER | TAT_TITLE, _("Source"));
tab_text (t, 1, 0, TAB_CENTER | TAT_TITLE, _("Target"));
tab_hline (t, TAL_2, 0, 1, 1);
tab_text (t, 0, 0, TAB_CENTER | TAT_TITLE, _("Source"));
tab_text (t, 1, 0, TAB_CENTER | TAT_TITLE, _("Target"));
tab_box (t, -1, -1, -1, TAL_1, 1, 0, nc - 1, dsc->var_cnt);
tab_hline (t, TAL_2, 0, nc - 1, 1);
tab_vline (t, TAL_2, 1, 0, dsc->var_cnt);
tab_box (t, -1, -1, -1, TAL_1, 1, 0, nc - 1, dsc->var_cnt);
tab_hline (t, TAL_2, 0, nc - 1, 1);
tab_vline (t, TAL_2, 1, 0, dsc->var_cnt);
nc = 0;
tab_text (t, nc++, 0, TAB_LEFT | TAT_TITLE, _("Variable"));
nc = 0;
tab_text (t, nc++, 0, TAB_LEFT | TAT_TITLE, _("Variable"));