Each paragraph has its own alignment, indents, spacing, hyphenation, tab
stops and paragraph style (TextObject.paras; para stays paragraph 0's, so
old files and readers work). Layout, editing (split/merge), threads, the
Paragraph/Tabs/Paragraph Styles panels, ranged text.setStyle/setFormat/
tabs/paraStyle.apply, SVG export/import and the fuzzers follow.
As decided in #432 (option 2): while the interface is in Japanese, new type starts with em box
top-to-top leading and em box centre character alignment; other languages keep the Roman
baseline, so Latin area type doesn't move.
- The UI tells the engine the language it is drawn in each frame (`Session::ui_language`); without
a UI, an explicit `interfaceLanguage` preference counts (`Session::japanese_interface`).
- `text.create` and `text.createInPath` (the Type tools' clicks and drags) apply it, and take
`leadingModel` / `charAlign` to choose; the values used are journaled, so a replay does the same
in any language.
- `paraStyle.new` / `charStyle.new` made from nothing (no `attrs`, no text selected) carry them.
- Imported text (PDF, SVG, DXF…) keeps the Roman baseline. Saved documents keep what they say.
- docs/mcp.md (New type in a Japanese interface) and the ROADMAP note it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
New type's Auto alignment is saved as the alignment it has in the
paragraph direction (Right for right to left, else Left) plus an
optional `justify_auto` flag, so builds without Auto parse the file
and lay it out the same; this build reads Auto back. Paragraph styles
keep Auto as one `justify` attribute.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Shipped code no longer unwraps, expects or panics: every one of the 124
unwrap()/expect()/panic!/unreachable! sites outside tests now handles the
failure (Result/Option, ?, let-else, defaults) and reports errors to the user.
- Lints: workspace clippy denies unwrap_used, expect_used, panic, todo,
unimplemented and unreachable; clippy.toml allows them in tests, and
integration tests, examples and testkit opt out explicitly.
- Safety net (vectorcraft_engine::guard): a panic in a top-level command rolls
the document back and returns EngineError::Internal; a panicking tool is
reset; the MCP server answers with an internal error and keeps serving; the
UI frame and each control request are guarded.
- APIs that hid failures now return them: Rendered::to_png/to_jpeg/to_webp
return Result (JPEG/WebP errors used to write empty files),
FontDb::face returns Option, Region::top returns Option.
- Fuzzing: engine/tests/import_fuzz.rs feeds garbage, hostile and mutated SVG
and PDF through import → render → export (30k cases locally, no panics).
- Docs: AGENTS.md/CLAUDE.md rule, docs/development.md "Robustness" section,
README pointer and a PR template checklist.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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