[angel1411337-del]

What and why

Literal span text can turn into Markdown formatting, or lose its backslashes, when a page is saved and reopened. Escaping that text for storage also exposed the storage backslashes in the editor and broke cursor and selection mapping when returning to a line.

This change separates storage quoting from editable text. It preserves literal and inline-image identity through widget edits and structural operations, and handles escaped delimiters and table cells in the parser. Clear Formatting and Copy/Cut use semantic selections, including table cells and selections that cross paragraphs.

It has no voice code, feature flag, dependency, lockfile or workflow changes. Inline code that contains embedded backticks is still an independent parser limitation. Reproduction and manual acceptance steps are in docs/testing-literal-text.md.

Quality level L3 (see SKILLS/nc-devx/SKILL.md)

• The branch is rebased on main (4286f7b) and has no merge commits: one commit
• cargo xtask ci passes locally on Rust 1.97 (see below); the pinned 1.99.1 run is this pull request's CI
• Coverage: the coverage job's warnings are read; cargo xtask coverage --update is in
  this pull request if coverage rose (to read once CI has run)
• Docs match the change: docs/testing.md and the new docs/testing-literal-text.md; no command, MCP or control-protocol change
• A new user action is a CommandSpec with a test: no new user action
• Page or demo changes: cargo xtask demo-check and the format parity test pass; every demo page round-trips in both formats
• UI changes: none beyond the editing line no longer showing storage backslashes
• New files under assets/ or docs/images/: none

How it was checked

On the current main (4286f7b), with Rust 1.97.0 locally (this environment could not download the pinned 1.99.1; GitHub CI runs it):

• cargo xtask ci passed: fmt, clippy, tests (988 passed, 0 failed, 2 existing manual large-fixture tests ignored), i18n-audit, layers, assets, docs, text, demo-check.
• cargo build --workspace --locked passed.
• Rebasing onto current main needed one small change: two tests added upstream (in fix(ui-egui): draw a box wide enough to hold its table #75) build pageedit::Caret literals, and they now set the new inline: None field.
• New regression tests reproduce the failures before the fix. They cover re-entry, replacement ranges, Unicode and font mapping, images, split and join, tags, tables, Clear Formatting and Copy/Cut, plus repeated save/reopen cycles in crates/formats/tests/literal_text.rs and structure_on_save.rs.
• Earlier, on a71a3c6 with Rust 1.99.1: comparing upstream and this change across the demo corpus gave 840 model, layout and canonical outputs with zero differences.

Not checked: a side-by-side visual look at both demo formats. The parsed blocks are identical, so rendering should not change.

Written with AI assistance (Codex and Claude), reviewed and tested as above.

🤖 Generated with Claude Code

https://claude.ai/code/session_01KowAZudvkUiQS623fiB331