7 /// anything which can be output
9 virtual String TeXstring() const=0;
10 /** generate a TeX string, which typesets the symbol. Vertical
11 base position is the "origin" of the staff
13 virtual Box extent() const=0;
16 any output should (at least) be outputtable for TeX, and have a
22 struct Text_gob : Output {
25 virtual String TeXstring() const;
26 virtual Box extent() const;
31 String vstrut(Real h);