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Dylan M. Taylor
62ef74067f
The PostScript interpreter's numeric copy grew the operand stack past its limit and charged nothing for the values copied; array and string constructors retained storage without charging it; show and charpath copied every glyph outline into the text path before any path or budget check; and the font pre-scan searched the whole prefix again for every eexec, as the bounding-box scan did for every rejected marker on a line. Clipping groups also nested without limit. Copies past the operand limit copy nothing; copies, arrays and strings count against the operation budget; each outline is charged and checked against the path limit before it is copied; headers are found in one pass and each is tried once; a rejected bounding-box comment is skipped to its line end; and the output builder drops groups past 256 open ones.