除夕当天，我们四点半准时到达，排队等了三趟电梯才能上楼。有一家人未经预订，想现场等位，却被告知不做现席，只好离开。我们落座后不久，两层楼的大厅和包间座无虚席，食客都是10人乃至20人的大家庭。
``@receiver isNil ifTrue: ``@nilBlock -> ``@receiver ifNil: ``@nilBlockOr maybe with single backticks?
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transform(chunk, controller) {
Greek omicron (ο, U+03BF) is as dangerous as Cyrillic o: pixel-identical in 40+ fonts. But Greek rho (ρ, U+03C1, which maps to p) is pixel-identical only in Phosphate and Copperplate, two geometric/all-caps fonts where the structural distinction between rho and Latin p collapses. This is font-specific risk, not script-wide risk.