A critical design decision is how to extract the file and rank from a square index. In most languages, you’d write file = (sq - 1) % 8 + 1 and rank = (sq - 1) / 8 + 1. But TeX’s \numexpr division rounds instead of truncating: 63/8 gives 8 (rounding 7.875 up), not 7. This was the source of one of the first nasty bugs. The fix: precompute lookup tables at load time using \divide (which truncates) and store results in \csname control sequences:
I experimented with other languages before deciding I needed to write my own.
。关于这个话题，新收录的资料提供了深入分析
Фото: Khalid Al-Mousily / Reuters。新收录的资料对此有专业解读
王毅：21世纪的国际舞台，不应再上演19世纪的旧戏码。拉丁美洲的资源属于拉美人民，拉美国家走什么道路要由拉美人民自己选择，与谁交朋友要由拉美国家自己决定。
“We never heard anything from the State Department other than the general email advising us to find our own way out,” Altmire said in an email interview. “I found this, along with the ‘you’re on your own’ State Department voicemail, to be infuriating.”