pre­view – Ex­tract bits of a LaTeX source for out­put

The pack­age is a free-stand­ing part of the pre­view-la­tex bun­dle. The pack­age pro­vides the sup­port pre­view-la­tex needs, when it chooses the mat­ter it will pre­view. The out­put may rea­son­ably be ex­pected to have other uses, as in html trans­la­tors, etc.