Since there is no pattern for hyphening meaningless words, they should be individually hyphenated/broken with methods such as \hyphenation{longword}
, \seqsplit{longword}, etc.
However, there should be a solution to do this automatically, because the need for hyphenation/breaking depends on the place of a word, and it is not easy to make individual hyphenation for any word that might be placed at the end of line.
\documentclass{article}
\begin{document}
This is a test for a word which is too long at the end of a line aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\
This is a test for a word which is too long at the end of a line http://test.com/3/3/3/3/3/3/3/3/3/3/3/3/3/3/3/3/3/3\\
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa This is a test for a word which is too long at the end of a line\\
http://test.com/3/3/3/3/3/3/3/3/3/3/3/3/3/3/3/3/3/3 This is a test for a word which is too long at the end of a line\\
\end{document}
As you can see, hyphenation/breaking can be unnecessary or extremely necessary. In fact, there should be a way to forbid continuing the text to margin. This is what text editors like MS Word do. I know Tex
is far beyond compare to MS Word, but it can give a clue. I thin if sending the long word to the next line is better than writing it on the margin and beyond.
The problem appear when there are many words of this kind, and it is quite difficult to treat them individually.