Canonical form owes the author fidelity: strip only editor-injected state - #29
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Canonical form owes the author fidelity: strip only editor-injected state#29namedgraph wants to merge 1 commit into
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…ributes round-trip Canonicalization conflated two jobs: removing the editor's own ephemera (its duty) and enforcing a class-free storage doctrine on authored content (a host policy, inherited from a retired draft). The second half made every save destructive for content the doctrine didn't cover: one click-in/ click-out stripped all class/id/aria-*/hidden attributes, upon which the attributeless-wrapper rules dissolved the remains into bare paragraphs. C2 now strips only the editor's injections (contenteditable, draggable, tabindex="-1") plus @Style, which no editing gesture can author; C2b subtracts the editor's own class tokens instead of deleting the attribute. cm:authored-attributes() backs the C6/C7 meaninglessness tests, so an element keeping any authored attribute is never unwrapped as browser junk, and C8 keeps empty a[@id] anchors. S1 exempts button - inert markup once S2 strips its handlers, legitimately stored by content components. A host with a stricter storage policy overrides these templates at higher import precedence. Canonical fixtures updated to the fidelity contract; 05 and 11 gain coverage for anchor preservation and button survival. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01S1UnYpbW5aYLj7LbwtyUo1
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Problem
Canonicalization conflated two jobs: removing the editor's own ephemera (its duty) and enforcing a class-free storage doctrine on authored content (a host policy, inherited from a since-retired draft of the LDH v6 document format). The second half fails the basic contract an editor owes its data — load, touch nothing, blur, and the document should come back identical. Instead, C2 stripped every authored
class/id/style/aria-*/data-*, upon which the attributeless-wrapper rules (C6/C7) dissolved the newly bare wrappers, and S1 droppedbuttonelements outright. In LinkedDataHub this destroyed a styled documentation page through nothing but a click-in/click-out: all 23 classes, 11 ids (anchor targets), everyaria-*/hidden, 3 buttons and 7 spans gone, 15 of 16 divs digested into paragraphs.Change
contenteditable,draggable,tabindex="-1"— plus@style, which no editing gesture can author (browsers mint styled spans during editing and paste, so inline style stays in the browser-mess family withfont/u).rdfa-editor-*,dragging,drop-*,rdfa-invalid) instead of deleting the attribute; authored tokens survive, an emptied attribute drops.cm:authored-attributes()backs the meaninglessness tests: C6 (span unwrap) and C7a/C7b (div→p / div unwrap) now treat any surviving authored attribute as meaning, mirroring how unknown elements are already preserved-and-linted rather than deleted. C8 keeps emptya[@id]— an anchor target, not junk.button: inert markup once S2 strips itson*handlers, and legitimately stored by content components (e.g. ARIA tab strips).form/input/select/textarea/script/iframe/… stay banned.ldh-editor.xslalready uses.Tests
Canonical fixtures updated to the fidelity contract (region-root host attributes and authored attributes now survive;
07-attr-stripexercises the new split directly). Fixture05gains empty-anchor coverage,11gains standalone-button coverage. All extractor, lint and canonical suites pass; both SEF flavors compile.A useful property this buys downstream: an unedited region canonicalizes to exactly what was loaded, so hosts can implement a save dirty-check as a string comparison (LinkedDataHub now does).
🤖 Generated with Claude Code
https://claude.ai/code/session_01S1UnYpbW5aYLj7LbwtyUo1