I use function iconv with option translit.
Is there transliteration from UTF-8 to CP1251 when one symbol substitutes with several symbols? Where I can search for that information? I am using iconv.
There are some, depending on the implementation and locale:
$ echo '℀⇒½' | iconv -f UTF8 -t CP1251//TRANSLIT
a/c=> 1/2
These are, respectively, U+2100 ACCOUNT OF transliterated as a/c
, U+21D2 RIGHTWARDS DOUBLE ARROW transliterated as =>
, U+00BDVULGAR FRACTION ONE HALF transliterated as 1/2
(including spaces).
I found these in the GNU libc source code, https://github.com/lattera/glibc/blob/master/locale/C-translit.h.in; different implementations may not transliterate these characters the same way if at all.