Grzegorz MartensandClaude Opus 5.5 0a350f6809 M2.6: nothing after a damaged content stream, or in one that doesn't decode, is rewritten ...

A page's content streams are read as one stream, so what a stream
damaged partway hides past the damage is unknown to the streams after
it too. A string or comment the damage leaves open runs on into the
next stream, and operators the damage hides can change the graphics
state the later streams draw in. Marking a tag's content as an artifact
took what read as a BDC in a later stream for the tag's own, and could
rewrite bytes inside a string. Moving an image after the damage worked
the move out without a cm the damage may hide.

Now an edit refuses a change to any stream after one damaged partway
(rewritten_contents), and an image isn't arranged into a new stream
placed after one. Marking an artifact or a decorative figure refuses
content that reads as the tag's in a stream after the damage. Edits and
marking before the damage go on as before.

A content stream that doesn't decode at all was read as empty and
whole. A styled edit whose paragraph marker closes past the page's last
operator appended the close to it, so the edit replaced that stream
with one holding only the close. Edits now refuse a change to such a
stream, and still go on around it. Marking an artifact or a decorative
figure whose content isn't found takes it as possibly in such a stream,
as it does for content past the damage, and refuses rather than take it
for absent.

Tests: an_edit_never_rewrites_a_content_stream_damaged_partway (an edit
after the damage refused, one before it made),
text_a_damaged_stream_runs_on_into_is_not_edited,
images_after_a_content_stream_damaged_partway_are_not_moved,
a_content_stream_that_does_not_decode_is_never_written_over,
a_tags_content_after_a_damaged_stream_is_not_rewritten,
a_tags_content_not_found_beside_a_stream_that_does_not_decode_is_not_taken_for_absent,
and a_tags_content_in_a_stream_damaged_partway_is_not_rewritten now
checks the damaged stream itself and marks content before the damage.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AmsdeUCdTaD72jkDw2pJKY

2026-11-07 12:37:35 +01:00

..

src

M2.6: nothing after a damaged content stream, or in one that doesn't decode, is rewritten

2026-11-07 12:37:35 +01:00

Cargo.toml

Merge upstream/main into main preserving custom features

2026-10-31 15:50:31 +05:30