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Re:Ask HN: Did TeXmacs' doubly misleading name hold it back ... by GiovanniP on Friday December 30, 2022 @09:34AM (#34185355)
Here as far as I understand the fact that TeX is a Turing-complete language makes it impossible to write a converter for TeX. I read a post by Joris van der Hoeven where he said that TeX held back every other program by making it impossible to write converters. I did not find that post so I link to

https://news.ycombinator.com/item?id=27604311

where he talks about the same issue.

Re:Ask HN: Did TeXmacs' doubly misleading name hold it back ... by dragonwriter on Saturday December 31, 2022 @06:06PM (#34201667)
> Here as far as I understand the fact that TeX is a Turing-complete language makes it impossible to write a converter for TeX.

Converters whose source, target, or both are Turing complete languages are... not uncommon in computing.