How to replace Russian letters with English ones in sphinx and vice versa?

Question

Sphinx

Greetings.
There is a task to replace, for example, the Russian letter "x" with the English "x" when searching,
that is, so that when you enter, for example, 10x10 with the Russian "x", between the numbers, a search is made for the
English "x",
but also vice versa, so that when you enter the English letter "x" in the word "cotton" was
searched with the Russian letter "x"
Is this even possible to do?

Answer 1

wrote such a rule, excluding x English and x Russian
charset_table = 0..9, \
A..W->a..w,\
Y..Z->y..z,\
_,\
a..w, \
y..z,\
U+410..U+424->U+430..U+444,\
U+426..U+42F->U+446..U+44F,\
U+430 ..U+444,\
U+446..U+44F,\
U+445->x, x->U+445
but does not search

Answer 2

There is no need to do this in the sphinx
Replace in the program itself, this is one line of code