Read the emphasis, the links and the lone image CommonMark spells

todo.md

@@ -240,7 +240,7 @@ detail is settled at its own milestone.
         autolink parting off as 3e's own predicate: refusing on the superset would refuse
         `1 <b 2`, a fourth carve-out §4 and the README do not list. `holdsEntityReference` reads
         the table for the same reason, so `&notareference;` is emitted bare.
-  - [ ] **3e — Emphasis and links.** `_`, `*` and `~~` runs through `matchEmphasis` to the `em`,
+  - [x] **3e — Emphasis and links.** `_`, `*` and `~~` runs through `matchEmphasis` to the `em`,
         `strong` and `strike` marks; links inline and reference, 3b's definitions resolved here,
         autolinks, and the image gap's named errors — a titled image, and one amid other text.
         `spec/flavour.md` does not yet pin `~`'s `can_open`/`can_close`, which is transcription
@@ -252,6 +252,14 @@ detail is settled at its own milestone.
         where nothing else works, so each construct keeps one spelling and a destination holding
         both composes. `link-destination-parenthesis` and `link-title-quote` become round-trip
         pairs.
+        **Settled** (the maintainer, 2026-08-31): the destination escapes only the parenthesis it
+        leaves unbalanced, so `/wiki/Foo_(bar)` keeps its bytes, and the backslash stays refused in
+        both the destination and the title — which leaves `[a](/a\b)` a §2 hole 3k's exception list
+        answers, as `<http://x?a=1&amp;b=2>` is, autolinks decoding neither escapes nor references.
+        The image gap mints `unmappable-image`, mirroring `unmappable-html` — a construct in input
+        no ADF node carries. And the CommonMark image shape lands here rather than at 3h: once
+        `[…](…)` reads, a lone `![alt](url)` would otherwise misparse as text plus a link, so 3h
+        keeps the rest of the media family and loses only that line.
   - [ ] **3f — The directive grammar.** The three forms — inline `:name[content]{attrs}`,
         container `:::name arg {attrs}`, leaf `::name arg {attrs}` — the attribute grammar with
         its quoting and escapes, the fence-length and nesting rules, and the malformed list
@@ -269,9 +277,9 @@ detail is settled at its own milestone.
         guard is built here if the answer there was yes.
   - [ ] **3h — The block nodes.** `block-nodes/` reads back: the plain-versus-directive choice 2f
         settles, read from the other side; the `codeBlock` directive's fenced body and the
-        `language` attribute a bare fence leaves it; the media family's composition and the
-        CommonMark image shape; both table forms, the pipe table's cell split and its named
-        errors; and the one paragraph an inline body takes.
+        `language` attribute a bare fence leaves it; the media family's composition; both table
+        forms, the pipe table's cell split and its named errors; and the one paragraph an inline
+        body takes.
         **Settled** (the maintainer, 2026-08-27): 1d's last pick, the one
         `container-block-separation` holds — a CommonMark block and a directive block sit adjacent
         in a container body with no blank line between them. That reduces the three cases to one