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A couple of questions of a similar nature:

  • We all know that -- prints an endash, while --- prints an emdash. But - is not an active character, right? So how does TeX process -- and --- and make them different from three ordinary dashes?
  • `` prints a . But ` is not an active character, right? So similarly to above, how is this processed?
  • ' is an active character, so I guess no issue there.
  • The character ` plus some character token prints the character number (or whatever the right term is) for that token, as seen e.g. in catcode assignments. What kind of construction is this? Can I change this to some other character?
  • Is there a way to print ` on TeX.SX? Typing ``` doesn’t work.
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