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Dylan M. Taylor
0f200006fa
* EPS: bound copies, storage, text outlines, group nesting and font discovery 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. * address review: EPS font look-back stops at the previous font; charge input characters * address review: count enclosing groups against the nesting limit in pattern and mask builders * address review: close a replaced soft mask before nesting the new one; skip patterns whose wrappers pass the depth limit