xref: /dokuwiki/_test/tests/Parsing/Markdown/gfm-spec/skip.php (revision b1c59bed2e3645a1f5f11438cdbe7d1596f4a3a4)
172b2703bSAndreas Gohr<?php
272b2703bSAndreas Gohr
372b2703bSAndreas Gohr/**
472b2703bSAndreas Gohr * GFM spec examples that GfmSpecTest should skip, keyed by example number
572b2703bSAndreas Gohr * (as numbered in spec.txt / the rendered spec).
672b2703bSAndreas Gohr *
772b2703bSAndreas Gohr * Add entries here ONLY for behavior DokuWiki has explicitly decided not to
872b2703bSAndreas Gohr * implement — not for features that are merely pending. Unimplemented
972b2703bSAndreas Gohr * features should show as real failures so they remain visible TODOs on
1072b2703bSAndreas Gohr * the branch.
1172b2703bSAndreas Gohr *
1272b2703bSAndreas Gohr * Each value is a short human-readable reason that will appear in phpunit's
1372b2703bSAndreas Gohr * skip output.
1472b2703bSAndreas Gohr */
1572b2703bSAndreas Gohr
1672b2703bSAndreas Gohrreturn [
1772b2703bSAndreas Gohr    // --------------------------------------------------------------------
18*b1c59bedSAndreas Gohr    // Fenced code blocks (GfmCode / GfmFile) — deliberate simplifications
19*b1c59bedSAndreas Gohr    // versus strict GFM. All of these are consequences of lexer constraints
20*b1c59bedSAndreas Gohr    // (no regex backreferences) or the deliberate column-0-only policy.
21*b1c59bedSAndreas Gohr    // --------------------------------------------------------------------
22*b1c59bedSAndreas Gohr    94  => 'fenced code: closing fence must be ≥ opening length — DokuWiki'
23*b1c59bedSAndreas Gohr         . ' accepts any 3+ run as a closer (no regex backreferences for'
24*b1c59bedSAndreas Gohr         . ' length pairing). Deliberate relaxation.',
25*b1c59bedSAndreas Gohr    95  => 'fenced code (tilde variant): closing fence must be ≥ opening'
26*b1c59bedSAndreas Gohr         . ' length — see example 94.',
27*b1c59bedSAndreas Gohr    96  => 'fenced code: unclosed fence — DokuWiki convention requires a'
28*b1c59bedSAndreas Gohr         . ' closer (matches DW <code> tag), so unclosed fences stay'
29*b1c59bedSAndreas Gohr         . ' literal rather than consuming to EOF. GFM spec rule depends'
30*b1c59bedSAndreas Gohr         . ' on CommonMark\'s two-pass block parser, which our single-pass'
31*b1c59bedSAndreas Gohr         . ' lexer cannot implement fully anyway (see example 98).',
32*b1c59bedSAndreas Gohr    97  => 'fenced code: unclosed fence with intervening short run — stays'
33*b1c59bedSAndreas Gohr         . ' literal, see example 96.',
34*b1c59bedSAndreas Gohr    101 => 'fenced code: opener indented 1 space — DokuWiki requires'
35*b1c59bedSAndreas Gohr         . ' column-0 fences. Indent tolerance + per-line body dedent out'
36*b1c59bedSAndreas Gohr         . ' of scope.',
37*b1c59bedSAndreas Gohr    102 => 'fenced code: opener indented 2 spaces — see example 101.',
38*b1c59bedSAndreas Gohr    103 => 'fenced code: opener indented 3 spaces — see example 101.',
39*b1c59bedSAndreas Gohr    105 => 'fenced code: closer indented 2 spaces — column-0-only policy,'
40*b1c59bedSAndreas Gohr         . ' see example 101.',
41*b1c59bedSAndreas Gohr    106 => 'fenced code: indented opener with less-indented closer —'
42*b1c59bedSAndreas Gohr         . ' column-0-only policy, see example 101.',
43*b1c59bedSAndreas Gohr    107 => 'fenced code: 4-space-indented closer — with column-0-only'
44*b1c59bedSAndreas Gohr         . ' policy there is no valid closer, so the fence stays literal'
45*b1c59bedSAndreas Gohr         . ' (see example 96).',
46*b1c59bedSAndreas Gohr    109 => 'fenced code: malformed closer `~~~ ~~` (space-broken run) —'
47*b1c59bedSAndreas Gohr         . ' with no valid closer the fence stays literal (see example 96).',
48*b1c59bedSAndreas Gohr    108 => 'fenced code: `` `` is not a valid fence; GFM falls back to an'
49*b1c59bedSAndreas Gohr         . ' inline code span of length 3. Inline spans with n≥3 not'
50*b1c59bedSAndreas Gohr         . ' implemented (GfmBacktickSingle/Double cover only n=1, n=2).',
51*b1c59bedSAndreas Gohr    111 => 'fenced code interrupting Setext heading (`foo\n---`): Setext'
52*b1c59bedSAndreas Gohr         . ' headings are deliberately not supported (SPEC.md Limits).',
53*b1c59bedSAndreas Gohr    115 => 'fenced code: `` `` backtick-fence-with-backticks-in-info-string'
54*b1c59bedSAndreas Gohr         . ' is invalid; GFM falls back to n=3 inline span — inline spans'
55*b1c59bedSAndreas Gohr         . ' with n≥3 not implemented. See example 108.',
56*b1c59bedSAndreas Gohr
57*b1c59bedSAndreas Gohr    // --------------------------------------------------------------------
588ed75a23SAndreas Gohr    // Code-span edge cases that collide with project-wide decisions
598ed75a23SAndreas Gohr    // (no raw HTML, no GFM angle-bracket autolinks, typography on by
608ed75a23SAndreas Gohr    // default) or with the single-pass lexer's limits.
618ed75a23SAndreas Gohr    // --------------------------------------------------------------------
628ed75a23SAndreas Gohr    351 => 'code span vs. emphasis: cross-positional precedence would require'
638ed75a23SAndreas Gohr         . ' a pre-scan pass — the single-pass lexer matches leftmost-first'
648ed75a23SAndreas Gohr         . ' and cannot reject an earlier emphasis opener because a later'
658ed75a23SAndreas Gohr         . ' backtick span would consume its closer',
668ed75a23SAndreas Gohr    353 => 'code span: the trailing `"` outside the span is converted to a'
678ed75a23SAndreas Gohr         . ' curly quote by DokuWiki typography, diverging from the spec HTML',
688ed75a23SAndreas Gohr    354 => 'raw HTML tag pass-through: DokuWiki does not render raw HTML by'
698ed75a23SAndreas Gohr         . ' default; `<html>` blocks are the opt-in',
708ed75a23SAndreas Gohr    356 => 'GFM angle-bracket autolink `<http://…>`: not implemented — we'
718ed75a23SAndreas Gohr         . ' rely on DokuWiki\'s existing bare-URL detection, which does not'
728ed75a23SAndreas Gohr         . ' parse `<URL>` form',
738ed75a23SAndreas Gohr
748ed75a23SAndreas Gohr    // --------------------------------------------------------------------
7572b2703bSAndreas Gohr    // CommonMark §6.2 flanking-delimiter analysis — deliberately not
7672b2703bSAndreas Gohr    // implemented. DokuWiki's regex lexer uses leftmost-match and cannot
7772b2703bSAndreas Gohr    // apply CommonMark's left/right-flanking rules that distinguish
7872b2703bSAndreas Gohr    // word-chars, whitespace, and punctuation for `*`/`_` delimiters, or
7972b2703bSAndreas Gohr    // the "multiple-of-3" rule for overlapping runs. These examples all
8072b2703bSAndreas Gohr    // rely on that machinery.
8172b2703bSAndreas Gohr    // --------------------------------------------------------------------
8272b2703bSAndreas Gohr
8372b2703bSAndreas Gohr    // Unicode whitespace in flanking context. Our `\s` is ASCII-only
8472b2703bSAndreas Gohr    // because the lexer doesn't set the PCRE `u` flag.
8572b2703bSAndreas Gohr    363 => 'Unicode whitespace (U+00A0) flanking — requires u-flag-aware regex',
8672b2703bSAndreas Gohr
8772b2703bSAndreas Gohr    // Punctuation-adjacent flanking for `*` / `_` / `**` / `__`
8872b2703bSAndreas Gohr    362 => 'flanking: punctuation-adjacent `*` (left-flanking vs. right-flanking)',
8972b2703bSAndreas Gohr    368 => 'flanking: punctuation-adjacent `_`',
9072b2703bSAndreas Gohr    372 => 'flanking: intraword `_` with punctuation inside',
9172b2703bSAndreas Gohr    377 => 'flanking: `*` followed by `(` requires punctuation-aware flanking',
9272b2703bSAndreas Gohr    378 => 'flanking: nested `*(*foo*)*` requires flanking + balanced-pair analysis',
9372b2703bSAndreas Gohr    382 => 'flanking: nested `_(_foo_)_` requires flanking + balanced-pair analysis',
9472b2703bSAndreas Gohr    389 => 'flanking: punctuation-adjacent `**`',
9572b2703bSAndreas Gohr    394 => 'flanking: punctuation-adjacent `__`',
9672b2703bSAndreas Gohr    401 => 'flanking: `**` followed by `(`',
9772b2703bSAndreas Gohr    404 => 'flanking: nested `*bar*` inside `**foo ... foo**` with punctuation',
9872b2703bSAndreas Gohr    407 => 'flanking: `__` followed by `(`',
9972b2703bSAndreas Gohr    470 => 'flanking: nested `*_foo_*` requires balanced-pair analysis',
10072b2703bSAndreas Gohr    472 => 'flanking: nested `_*foo*_` requires balanced-pair analysis',
10172b2703bSAndreas Gohr
10272b2703bSAndreas Gohr    // Intraword `__` strong (even multibyte) — flanking rule for `_` requires
10372b2703bSAndreas Gohr    // examining whether the delimiter run is word-boundary-flanking, which our
10472b2703bSAndreas Gohr    // simple lookbehind/lookahead approximation doesn't fully match.
10572b2703bSAndreas Gohr    395 => 'flanking: intraword `__` (`foo__bar__`) — left-flanking vs right-flanking',
10672b2703bSAndreas Gohr    396 => 'flanking: intraword `__` across digits (`5__6__78`)',
10772b2703bSAndreas Gohr    397 => 'flanking: intraword `__` with Cyrillic',
10872b2703bSAndreas Gohr    398 => 'flanking: `__foo, __bar__, baz__` — flanking + balanced pairing',
10972b2703bSAndreas Gohr    409 => 'flanking: `__foo__bar` — intraword close',
11072b2703bSAndreas Gohr    410 => 'flanking: intraword `__` with Cyrillic (leading)',
11172b2703bSAndreas Gohr    411 => 'flanking: `__foo__bar__baz__` — multiple `__` pairs with flanking',
11272b2703bSAndreas Gohr    412 => 'flanking: `__(bar)__.` — punctuation-adjacent',
11372b2703bSAndreas Gohr
11472b2703bSAndreas Gohr    // Overlapping / multiple-of-3 rule for runs
11572b2703bSAndreas Gohr    416 => 'CommonMark rule 9 (overlapping same-delimiter `_foo _bar_ baz_`)',
11672b2703bSAndreas Gohr    417 => 'CommonMark overlapping `_` / `__` with flanking',
11772b2703bSAndreas Gohr    418 => 'CommonMark overlapping `*foo *bar**` — multiple-of-3 rule',
11872b2703bSAndreas Gohr    419 => 'CommonMark nested `*foo **bar** baz*` — balanced-pair analysis',
11972b2703bSAndreas Gohr    421 => 'CommonMark overlapping `*foo**bar*` — multiple-of-3',
12072b2703bSAndreas Gohr    422 => 'CommonMark nested `***foo** bar*` — triple-delimiter analysis',
12172b2703bSAndreas Gohr    423 => 'CommonMark nested `*foo **bar***` — triple-delimiter analysis',
12272b2703bSAndreas Gohr    424 => 'CommonMark nested `*foo**bar***` — triple-delimiter analysis',
12372b2703bSAndreas Gohr    425 => 'CommonMark triple `foo***bar***baz` — triple-delimiter analysis',
12472b2703bSAndreas Gohr    426 => 'CommonMark long delimiter runs `foo******bar*********baz`',
12572b2703bSAndreas Gohr    427 => 'CommonMark deeply nested `*foo **bar *baz* bim** bop*`',
12672b2703bSAndreas Gohr    434 => 'CommonMark overlapping `__foo __bar__ baz__` — multiple-of-3',
12772b2703bSAndreas Gohr    435 => 'CommonMark `____foo__ bar__` — leading long delimiter run',
12872b2703bSAndreas Gohr    436 => 'CommonMark `**foo **bar****` — trailing long delimiter run',
12972b2703bSAndreas Gohr    439 => 'CommonMark nested `***foo* bar**` — triple-delimiter',
13072b2703bSAndreas Gohr    440 => 'CommonMark nested `**foo *bar***` — triple-delimiter',
13172b2703bSAndreas Gohr    441 => 'CommonMark deeply nested `**foo *bar **baz** bim* bop**`',
13272b2703bSAndreas Gohr
13372b2703bSAndreas Gohr    // `__foo_` / `_foo__` — mixing `_` and `__` requires flanking to decide
13472b2703bSAndreas Gohr    // which delimiter pairs open/close.
13572b2703bSAndreas Gohr    463 => 'flanking: `__foo_` — mixed `_`/`__` pairing',
13672b2703bSAndreas Gohr    464 => 'flanking: `_foo__` — mixed `_`/`__` pairing',
13772b2703bSAndreas Gohr    465 => 'flanking: `___foo__` — delimiter-run length analysis',
13872b2703bSAndreas Gohr    466 => 'flanking: `____foo_` — delimiter-run length analysis',
13972b2703bSAndreas Gohr    467 => 'flanking: `__foo___` — delimiter-run length analysis',
14072b2703bSAndreas Gohr    468 => 'flanking: `_foo____` — delimiter-run length analysis',
14172b2703bSAndreas Gohr
14272b2703bSAndreas Gohr    // Long delimiter runs require excess-drop logic (2 outer chars dropped
14372b2703bSAndreas Gohr    // from each side). Stack-based pairing needed — out of scope.
14472b2703bSAndreas Gohr    473 => 'CommonMark `****foo****` — excess-drop (4+4 → strong only)',
14572b2703bSAndreas Gohr    474 => 'CommonMark `____foo____` — excess-drop (4+4 → strong only)',
14672b2703bSAndreas Gohr    475 => 'CommonMark `******foo******` — excess-drop (6+6 → strong only)',
14772b2703bSAndreas Gohr    477 => 'CommonMark `_____foo_____` — excess-drop (5+5 → em+strong, 2 dropped each side)',
14872b2703bSAndreas Gohr
14972b2703bSAndreas Gohr    // Overlapping / crossing delimiters
15072b2703bSAndreas Gohr    478 => 'CommonMark `*foo _bar* baz_` — overlapping different delimiters',
15172b2703bSAndreas Gohr    479 => 'CommonMark `*foo __bar *baz bim__ bam*` — crossing delimiters',
15272b2703bSAndreas Gohr    480 => 'CommonMark `**foo **bar baz**` — overlapping same delimiter',
1538719732dSAndreas Gohr
1548719732dSAndreas Gohr    // --------------------------------------------------------------------
155e89aeebdSAndreas Gohr    // Inline link `[text](url)` — features GfmLink deliberately does not
156e89aeebdSAndreas Gohr    // implement. Either rarely-used syntax paid for with disproportionate
157e89aeebdSAndreas Gohr    // regex complexity, or single-pass-lexer limits that can't be worked
158e89aeebdSAndreas Gohr    // around inside one mode.
159e89aeebdSAndreas Gohr    // --------------------------------------------------------------------
160e89aeebdSAndreas Gohr
161e89aeebdSAndreas Gohr    // GFM link title attribute (`"title"` / `'title'` / `(title)` after
162e89aeebdSAndreas Gohr    // the URL). Parses cleanly but is discarded: DokuWiki's link handler
163e89aeebdSAndreas Gohr    // instructions have no title-attribute slot, and plumbing one through
164e89aeebdSAndreas Gohr    // every renderer is out of scope for GfmLink.
165e89aeebdSAndreas Gohr    493 => 'link title attribute: GfmLink parses but discards — DokuWiki link instructions have no title slot',
166e89aeebdSAndreas Gohr    513 => 'link title attribute (three quoting styles): discarded by GfmLink',
167e89aeebdSAndreas Gohr    515 => 'link title separated by non-breaking space: title slot not supported',
168e89aeebdSAndreas Gohr    516 => 'link title with nested balanced quotes: Markdown.pl quirk, not supported',
169e89aeebdSAndreas Gohr    517 => 'link title with different quote type for inner quotes: title slot not supported',
170e89aeebdSAndreas Gohr    518 => 'multi-line link title: title slot not supported',
171e89aeebdSAndreas Gohr
172e89aeebdSAndreas Gohr    // Pointy-bracket link destinations `<...>`. Rarely used; regex cost
173e89aeebdSAndreas Gohr    // and interaction with raw-HTML detection outweigh the benefit.
174e89aeebdSAndreas Gohr    496 => 'pointy-bracket link destination `<>`: not supported',
175e89aeebdSAndreas Gohr    498 => 'pointy-bracket destination with spaces `<...>`: not supported',
176e89aeebdSAndreas Gohr    500 => 'pointy-bracket destination with newline: not supported',
177e89aeebdSAndreas Gohr    501 => 'pointy-bracket destination containing `)`: not supported',
178e89aeebdSAndreas Gohr    502 => 'pointy-bracket destination with trailing backslash: not supported',
179e89aeebdSAndreas Gohr    503 => 'malformed pointy-bracket destinations: renderer output differs',
180e89aeebdSAndreas Gohr    507 => 'pointy-bracket destination wrapping unbalanced parens: not supported',
181e89aeebdSAndreas Gohr
182e89aeebdSAndreas Gohr    // Balanced-parens inside URL destinations.
183e89aeebdSAndreas Gohr    505 => 'balanced-parens in URL destination: not supported (regex single-level)',
184e89aeebdSAndreas Gohr
185e89aeebdSAndreas Gohr    // Other URL-level edges.
186e89aeebdSAndreas Gohr    495 => 'empty URL destination `[link]()`: pattern requires non-empty URL',
187e89aeebdSAndreas Gohr    510 => 'backslash in URL destination: URL-encoding differs from spec',
188e89aeebdSAndreas Gohr    511 => 'HTML entity / percent-encoding in URL: renderer normalization differs',
189e89aeebdSAndreas Gohr    512 => 'link destination that parses as a title: edge case not supported',
190e89aeebdSAndreas Gohr
191e89aeebdSAndreas Gohr    // Inherent single-pass-lexer limits for link text containing nested
192e89aeebdSAndreas Gohr    // structures. These cannot be resolved inside one mode.
193e89aeebdSAndreas Gohr    522 => 'nested bracket forms inner link, outer falls back to literal',
194e89aeebdSAndreas Gohr    526 => 'nested links: inner is a link, outer falls back to literal',
195e89aeebdSAndreas Gohr    527 => 'nested links inside emphasis: not supported',
196e89aeebdSAndreas Gohr    529 => 'link text grouping vs. emphasis: leftmost-match cannot override',
197e89aeebdSAndreas Gohr    530 => 'emphasis/bracket crossing: leftmost-match cannot override',
198e89aeebdSAndreas Gohr    532 => 'raw HTML inside link text: project-wide "no raw HTML" limit',
199e89aeebdSAndreas Gohr    533 => 'code span inside link text: requires pre-scan pass (see #351)',
200e89aeebdSAndreas Gohr    534 => 'autolink inside link text: raw `<URL>` autolinks not supported (see #356)',
201e89aeebdSAndreas Gohr
202e89aeebdSAndreas Gohr    // Reference links (`[text][id]`, `[text][]`, `[foo]` with matching
203e89aeebdSAndreas Gohr    // `[foo]: url` definition). Not implemented: resolving forward
204e89aeebdSAndreas Gohr    // references would require a two-pass parse, but DokuWiki's lexer is
205e89aeebdSAndreas Gohr    // single-pass. Inline links `[text](url)` are the only supported
206e89aeebdSAndreas Gohr    // form.
207e89aeebdSAndreas Gohr    535 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
208e89aeebdSAndreas Gohr    536 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
209e89aeebdSAndreas Gohr    537 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
210e89aeebdSAndreas Gohr    538 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
211e89aeebdSAndreas Gohr    539 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
212e89aeebdSAndreas Gohr    540 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
213e89aeebdSAndreas Gohr    541 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
214e89aeebdSAndreas Gohr    542 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
215e89aeebdSAndreas Gohr    543 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
216e89aeebdSAndreas Gohr    544 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
217e89aeebdSAndreas Gohr    545 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
218e89aeebdSAndreas Gohr    546 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
219e89aeebdSAndreas Gohr    547 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
220e89aeebdSAndreas Gohr    548 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
221e89aeebdSAndreas Gohr    549 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
222e89aeebdSAndreas Gohr    550 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
223e89aeebdSAndreas Gohr    551 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
224e89aeebdSAndreas Gohr    552 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
225e89aeebdSAndreas Gohr    553 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
226e89aeebdSAndreas Gohr    557 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
227e89aeebdSAndreas Gohr    558 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
228e89aeebdSAndreas Gohr    560 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
229e89aeebdSAndreas Gohr    561 => 'collapsed reference link: forward-reference definitions not supported (single-pass lexer)',
230e89aeebdSAndreas Gohr    562 => 'collapsed reference link: forward-reference definitions not supported (single-pass lexer)',
231e89aeebdSAndreas Gohr    563 => 'collapsed reference link: forward-reference definitions not supported (single-pass lexer)',
232e89aeebdSAndreas Gohr    564 => 'collapsed reference link: forward-reference definitions not supported (single-pass lexer)',
233e89aeebdSAndreas Gohr    565 => 'shortcut reference link: forward-reference definitions not supported (single-pass lexer)',
234e89aeebdSAndreas Gohr    566 => 'shortcut reference link: forward-reference definitions not supported (single-pass lexer)',
235e89aeebdSAndreas Gohr    567 => 'shortcut reference link: forward-reference definitions not supported (single-pass lexer)',
236e89aeebdSAndreas Gohr    568 => 'shortcut reference link: forward-reference definitions not supported (single-pass lexer)',
237e89aeebdSAndreas Gohr    569 => 'shortcut reference link: forward-reference definitions not supported (single-pass lexer)',
238e89aeebdSAndreas Gohr    570 => 'shortcut reference link: forward-reference definitions not supported (single-pass lexer)',
239e89aeebdSAndreas Gohr    571 => 'shortcut reference link with escape: forward-reference definitions not supported (single-pass lexer)',
240e89aeebdSAndreas Gohr    572 => 'shortcut reference link with emphasis: forward-reference definitions not supported (single-pass lexer)',
241e89aeebdSAndreas Gohr    573 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
242e89aeebdSAndreas Gohr    574 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
243e89aeebdSAndreas Gohr    575 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
244e89aeebdSAndreas Gohr    576 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
245e89aeebdSAndreas Gohr    577 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
246e89aeebdSAndreas Gohr    578 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
247e89aeebdSAndreas Gohr    579 => 'reference link: forward-reference definitions not supported (single-pass lexer)',
248e89aeebdSAndreas Gohr
249e89aeebdSAndreas Gohr    // --------------------------------------------------------------------
2503440a8c0SAndreas Gohr    // Inline image `![alt](url)`. The XHTML renderer's default media
2513440a8c0SAndreas Gohr    // rendering diverges from GFM's bare <img> (it wraps in a details <a>
2523440a8c0SAndreas Gohr    // with fetch.php/detail.php proxy URLs) — GfmSpecTest uses
2533440a8c0SAndreas Gohr    // SpecCompatRenderer to emit spec-shape bare <img>, so only the
2543440a8c0SAndreas Gohr    // parser-level or feature-level gaps remain as skips: title attribute
2553440a8c0SAndreas Gohr    // (no DW slot), reference images, pointy-bracket destinations, nested
2563440a8c0SAndreas Gohr    // brackets, and escape-dependent cases.
2573440a8c0SAndreas Gohr    // --------------------------------------------------------------------
2583440a8c0SAndreas Gohr
2593440a8c0SAndreas Gohr    580 => 'image with title attribute: GfmMedia discards titles (no DW slot)',
2603440a8c0SAndreas Gohr    581 => 'reference-style image: forward-reference definitions not supported (single-pass lexer)',
2613440a8c0SAndreas Gohr    582 => 'nested image-in-image `![foo ![bar](x)](y)`: alt class forbids brackets;'
2623440a8c0SAndreas Gohr         . ' leftmost-match cannot reorder — outer falls back to literal (see #526)',
2633440a8c0SAndreas Gohr    583 => 'link-in-image alt `![foo [bar](x)](y)`: alt class forbids brackets;'
2643440a8c0SAndreas Gohr         . ' leftmost-match cannot reorder — outer falls back to literal (see #526)',
2653440a8c0SAndreas Gohr    584 => 'collapsed reference-style image: forward-reference definitions not supported',
2663440a8c0SAndreas Gohr    585 => 'full reference-style image: forward-reference definitions not supported',
2673440a8c0SAndreas Gohr    587 => 'image with title attribute: title discarded (no DW slot)',
2683440a8c0SAndreas Gohr    588 => 'pointy-bracket image destination `![alt](<url>)`: not supported (see GfmLink #496)',
2693440a8c0SAndreas Gohr    590 => 'reference-style image: forward-reference definitions not supported',
2703440a8c0SAndreas Gohr    591 => 'reference-style image (case-insensitive label): forward-reference definitions not supported',
2713440a8c0SAndreas Gohr    592 => 'collapsed reference-style image `![foo][]`: forward-reference definitions not supported',
2723440a8c0SAndreas Gohr    593 => 'collapsed reference-style image with emphasis in label: forward-reference definitions not supported',
2733440a8c0SAndreas Gohr    594 => 'collapsed reference-style image (case-insensitive): forward-reference definitions not supported',
2743440a8c0SAndreas Gohr    595 => 'reference-style image with intervening whitespace: forward-reference definitions not supported',
2753440a8c0SAndreas Gohr    596 => 'shortcut reference-style image `![foo]`: forward-reference definitions not supported',
2763440a8c0SAndreas Gohr    597 => 'shortcut reference-style image with emphasis: forward-reference definitions not supported',
2773440a8c0SAndreas Gohr    598 => 'image with unescaped nested brackets `![[foo]]`: literal-fallback behavior not supported',
2783440a8c0SAndreas Gohr    599 => 'shortcut reference-style image (case-insensitive): forward-reference definitions not supported',
2793440a8c0SAndreas Gohr    600 => 'escape in image syntax `!\[foo]`: depends on GfmEscape (pending)',
2803440a8c0SAndreas Gohr    601 => 'backslash-escape of `!` before link: depends on GfmEscape (pending)',
2813440a8c0SAndreas Gohr
2823440a8c0SAndreas Gohr    // --------------------------------------------------------------------
2838719732dSAndreas Gohr    // ATX heading collisions with DokuWiki-specific behavior.
2848719732dSAndreas Gohr    // --------------------------------------------------------------------
2858719732dSAndreas Gohr    38 => 'ATX heading with leading spaces: GFM tolerates 0-3 spaces of'
2868719732dSAndreas Gohr        . ' indent before the opener; we require the `#` at column 0.'
2878719732dSAndreas Gohr        . ' Indent tolerance collides with DokuWiki\'s 2-space-indent'
2888719732dSAndreas Gohr        . ' preformatted block and isn\'t worth untangling',
2898719732dSAndreas Gohr    39 => 'indented code block: DokuWiki uses 2-space indent for'
2908719732dSAndreas Gohr        . ' preformatted; GFM 4-space indented code blocks are not'
2918719732dSAndreas Gohr        . ' implemented',
2928719732dSAndreas Gohr    40 => 'indented code block: 4-space indent after a paragraph is a'
2938719732dSAndreas Gohr        . ' continuation in GFM but preformatted in DokuWiki — not'
2948719732dSAndreas Gohr        . ' implemented',
2958719732dSAndreas Gohr    41 => 'ATX heading with leading spaces: second heading is indented'
2968719732dSAndreas Gohr        . ' by 2 spaces; we require the `#` at column 0',
2978719732dSAndreas Gohr    49 => 'empty ATX heading: DokuWiki\'s XHTML renderer deliberately'
2988719732dSAndreas Gohr        . ' skips blank headings (blank() guard in Doku_Renderer_xhtml::header)',
29972b2703bSAndreas Gohr];
300