quail: TeX input method: change UTF8 to tex and back: solution & problems

[Stephen J. Turnbull]

Uwe Brauer writes:
 > I am not sure whether I could treat ~ as a string, for example in the
 > file latin-ltx.el I see
 >  ("\\int" ?~)

For this purpose, the semantics of a character and of a string of
length 1 are the same.
 
 > So the question is how shall I define the tex commands uniquely?

Try reordering the strings to be converted longest first.