Function Repository Resource:

StringOverlapsQ

Test whether a string or strings have overlaps

Contributed by: Stephen Wolfram

ResourceFunction["StringOverlapsQ"][{string₁,string₂,…}]

gives True if there are overlaps between the string_i, or False otherwise.

ResourceFunction["StringOverlapsQ"][string]

gives True if there are self-overlaps in string, or False otherwise.

Examples

This string cannot overlap itself:

In[1]:=

Out[1]=

But this string can:

In[2]:=

Out[2]=

These strings have no mutual or self overlaps:

In[3]:=

Out[3]=

But these do:

In[4]:=

Out[4]=