bl0               261 src/learn.c        int bl0, bl1;
bl0               335 src/learn.c        bl0 = str_term_width1 (b0) + 5;     /* default button */
bl0               337 src/learn.c        bx0 = (dlg_width - (bl0 + bl1 + 1)) / 2;
bl0               338 src/learn.c        bx1 = bx0 + bl0 + 1;