Generated lyric effects can overlay each syllable with animated single letters
rendered through \fn in a symbol font, where ordinary letters draw as sparkles.
Reading them as text corrupted reconstructed lines ("sotto mimi ni ateru to a z
x") and leaked junk cues ("hlk"). A font a style group uses only for scattered
animated single glyphs now marks those events as decoration: they stay out of
fragment reconstruction and are suppressed alongside the line they overlay.
Per-glyph word gaps measured across a wide glyph ("waves|within" over s/w)
normalize to nearly a common advance, so the ratio test missed them. A word
space adds a roughly constant extra distance regardless of neighbor widths, so
glyph runs with enough gap samples also split when the advance exceeds the
width-predicted advance by a material fraction of the line's common unit.
Capital-to-lowercase pairs and short sample counts are excluded; both guards
are pinned by corpus-derived regression tests.
Across the 145-file library corpus this removes every scattered-letter
malformation and recovers 30+ missing word spaces with no other output change.
- Only classify tall positioned ASS blocks as fragment grids when they read like tiling (sign walls, re-shown countdown frames, scattered single glyphs, or table columns), keeping CC-style dialogue blocks and wrapped lyric rows publishable
- Widen Latin word-gap heuristics for per-glyph typesetting runs and short capitalized words so proportional-font variation and two-letter words no longer get split
- Add changelog fragment documenting the stats database busy-timeout fix
sudacode