Files
craft-libs/crates/ps/examples
41fb227542 feat(ps): add bounded shared PostScript EPS reader (#1276)
* feat(ps): add craft-ps with an EPS reader (read feature)

The reading half of craft-ps (#115): a clean-room PostScript interpreter
that runs an EPS and returns what it paints as a one-page vector PDF of
its bounding box, colours kept, so apps can draw and export EPS as a
placed PDF. Moved from DesignCraft (storytold/designcraft, where it was
written for placed EPS), with its app-specific names made neutral.

Written from the PostScript Language Reference (3rd ed.), the EPS
specification, the Type 1 Font Format and Adobe TN 5012/5176/5177.
Covers the language, paths, clipping, strokepath, device/Separation/
DeviceN/Indexed/ICCBased/Lab colour, images with lazily decoded filters,
shadings 1-7 and patterns, and Type 1/3/42/CFF/CID text through CMaps,
horizontal and vertical.

Bounded: each operator charges work proportional to its operands
against the step limit as it goes, every byte read or decoded counts,
copies count against the memory cap; defaults 50 M steps / 1 GiB, and
20 M / 256 MiB on wasm32. No panics (deny lints, fuzzed in debug
builds). 34 tests, the Type 42 one on a TrueType font built in the
test. No new external crates: pdf-writer, miniz_oxide, weezl, skrifa
and kurbo are already locked at these versions.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* clippy(ps): document stateful decoder complexity

* fix(ps): bound huge arc angle normalization

* fix(ps): preserve EffectCraft EPS text and limits parity

* fix(ps): address interpreter review findings

* fix(ps): preserve composite glyph paint order

* fix(ps): address interpreter review findings

* fix(ps): bound filter buffers and preserve file aliases

* fix(ps): make predictor allocation fallible

---------

Co-authored-by: markus.doebele <markus.doebele@top21.sh>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-14 06:10:27 -05:00
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