Claude Opus 5andbdeshi
04ae2ff475
The last two words of a paragraph or heading are joined by a non-breaking space, so one word never falls alone onto its own line. Deferred from entry 11 for the right reason: over rendered HTML this cannot tell prose from an escaped code span, so it had to wait for a tree transform. The interesting failure is worth keeping: written against goldmark alone it passed six tests, and did nothing in the real engine. The typographer splits a text run wherever it looks for a substitution, so a paragraph ending "hand." arrives as two text nodes and the last of them holds no space at all. A version that inspects only the last child therefore finds nothing to join. It now takes the whole trailing run of text nodes, stopping at a line break or any markup, and there is a regression test that builds both extensions together — the only configuration that would have caught it. The joined text becomes a String node, which carries its own bytes: a segment is an offset into bytes every node shares, so editing the source in place is not possible. That path still escapes, and a test says so, since otherwise this transform would be an injection route. PhaseMarkup is now empty in extensions.md, and honestly so: everything expected there turned out to belong either earlier or later.
8 lines
396 B
Go
8 lines
396 B
Go
// Package widows keeps the last word of a paragraph or heading from falling alone onto its own line.
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//
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// Contributes: a Markdown AST transformer (PhaseParse).
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// Cascade keys: none.
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// Contract fields: none — it changes one space in the text, and nothing a theme reads.
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// Not doing: hyphenation, orphans, balancing headings across lines — those are the theme's typography.
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package widows
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