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Claude
b4e2b5f651
The first cut special-cased the whole per-line loop with an
`if (mightContainMath)` branch that duplicated the word-split +
wordIdentifier logic and filtered empty words inconsistently with the
non-math path (which preserves them to keep double-spaces).
Reframe MathParser.split as a drop-in replacement for `line.split(' ')`
that returns typed Word|Math tokens, keeping math spans whole instead of
tearing them at internal spaces. For a math-free line it yields exactly
the same words (empties included), so RichTextParser collapses to a
single uniform map with an exhaustive when — no branch, no duplication.
Also fixes end-of-sentence math: a span glued to trailing punctuation
(`$x$.`) now carries that punctuation as a `trailing` field rendered
adjacent to the equation, mirroring HashTagSegment's extras, instead of
being dropped to a plain word.
https://claude.ai/code/session_01N8ZhVv9912DLGNJiErVTR4