aleleba/vectorcraft
1
0
Fork 0
mirror of https://github.com/storytold/vectorcraft.git synced 2026-10-26 02:37:01 -06:00
Code Issues Packages Projects Releases Wiki Activity

EPS import: say plainly that no Adobe specification was used

Browse Source 
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
Matthew Farrow
2026-10-09 03:49:49 -04:00
co-authored by Claude Sonnet 5.5
parent 2f0ede9c44
commit 319e60125f
1 changed files with 12 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files
crates/eps/src/import/native.rs
+12 -13
View File
@@ -22,21 +22,20 @@
//! one is on a layer that shows, the art of this copy would differ from the page's, so the layers
//! aren't used: the file comes in as its page, as it did before.
//!
//! Sources (public documentation only; no Adobe software was run and no Adobe file is in this repo):
//! Sources (no Adobe software was run, no Adobe file is in this repo, and no Adobe specification,
//! SDK or installation was used):
//!
//! - The legacy format: *Adobe Illustrator File Format Specification*, version 7.0, published by its
//! maker for third-party developers; PRONOM lists it at
//! <https://www.nationalarchives.gov.uk/PRONOM/fmt/423> (the record links the document itself).
//! The layer, group, compound-path and clipping vocabulary is that format's; PRONOM's record for
//! versions 5.0/5.5 (<https://pronom.nationalarchives.gov.uk/fmt/420>) shows the layer-era comments
//! date from then.
//! - The layer, group, compound-path and clipping vocabulary of the legacy format, the container
//! (`%AI9_PrivateDataBegin`, `%AI24_DataStream`, `%AI24_ZStandard_Data`, the `AIPrivateData`
//! streams), the meaning of the `Xw` hidden flag and the text document were worked out from `.eps`
//! and `.ai` files their users own, used locally and never committed. (Adobe published a
//! specification of the legacy format, listed by PRONOM at
//! <https://www.nationalarchives.gov.uk/PRONOM/fmt/423>; it was not used here.)
//! - The wrappers: ASCII85 is PostScript Level 2 (*PostScript Language Reference*, 3rd ed.); the
//! compressed stream is Zstandard, RFC 8878 (<https://www.rfc-editor.org/rfc/rfc8878>).
//! - The container (`%AI9_PrivateDataBegin`, `%AI24_DataStream`, `%AI24_ZStandard_Data`, the
//! `AIPrivateData` streams), the meaning of the `Xw` hidden flag and the text document are NOT in
//! those documents: they
//! were worked out from `.eps` and `.ai` files their users own, used locally. Where a file doesn't
//! match what this module expects, it is left alone and its page is imported.
//! compressed stream is Zstandard, RFC 8878 (<https://www.rfc-editor.org/rfc/rfc8878>), read with
//! the permissively licensed `ruzstd` crate.
//!
//! Where a file doesn't match what this module expects, it is left alone and its page is imported.
use std::collections::BTreeSet;
use std::io::Read;