The IsConjugate(s,t) command tests whether its arguments are conjugate strings. Two strings are conjugate if one is a cyclic permutation of the other.

If s and t are empty strings, the command returns true.

All of the StringTools package commands treat strings as (null-terminated) sequences of $8$-bit (ASCII) characters.  Thus, there is no support for multibyte character encodings, such as unicode encodings.

$\mathrm{with}\left(\mathrm{StringTools}\right)\:$

$\mathrm{IsConjugate}\left(''abc''\,''bca''\right)$

$\mathrm{true}$

$\mathrm{IsConjugate}\left(''abc''\,''acb''\right)$

$\mathrm{false}$

$\mathrm{IsConjugate}\left(''abc''\,''abcd''\right)$

$\mathrm{false}$