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Dylan M. Taylor
f03c0df00d
The cover walk read the first operand of g, gs and Do, while the renderer takes operands from the end, so surplus operands could make the audit see a white cover, a translucent state or an empty form where the page paints an opaque black rectangle. It also kept only the last subpath of a path, so a cover followed by another rectangle in the same fill went unseen. g now reads its last operand like rg and k, and gs and Do use last_name. The path keeps every rectangular subpath with its winding; a fill paints them all, and where the even-odd rule or opposite windings can cut holes the painted region is worked out on the rectangles' edge grid, bounded per page.