/r/WorldNews Live Thread: Russian Invasion of Ukraine Day 1464, Part 1 (Thread #1611)
Two characters might have identical Unicode skeletons but render differently in specific fonts, or have different skeletons but render identically in a particular typeface. Detecting this requires rendering glyphs and comparing pixel output. No purely Unicode-data-based approach handles it, and UTS #39 does not attempt to.
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In phase2, we have a simple linked list;。关于这个话题，搜狗输入法下载提供了深入分析
Sweat the small stuff