roff/troff/env.cpp

502   if (underline_spaces && fontno != prev_fontno) {
646   underline_spaces(0),
738   underline_spaces(0),
819   underline_spaces = 0;
1475 node *do_underline_special(int underline_spaces)
1479   m.append(underline_spaces + '0');
1483 void do_underline(int underline_spaces)
1492       if (underline_spaces) {
1493 	curenv->underline_spaces = 0;
1503     if (underline_spaces) {
1504       curenv->underline_spaces = 1;
1692       if (underline_spaces) {
1693         underline_spaces = 0;