Hyphenation in Perl package names [duplicate]

Question

Possible Duplicate:
Line break in lines with colons

I have Perl package name defined as command:

\newcommand{\myperlpackage}{\texttt{XXXXX::YYYYY::ZZZZZ}}

How can I tell LaTeX to hyphen package name after double colon but without any hyphen char eg.

XXXXX::-
YYYYY::ZZZZZ

should be

XXXXX::
YYYYY::ZZZZZ

Answer 1

I usually define a command \dbr for discretionary breakpoints like this: \newcommand\dbr{\disretionary{}{}{}}. Then you can write XXXX::\dbr YYYY::\dbr ZZZZ, which should have the effect you desire.

To explain, \discretionary<arg1><arg2><arg3> tells TeX that a line break is permissible and that it should put <arg1> before the breakpoint, <arg2> after the breakpoint (in the next line), and <arg3> in the case that no line break is performed. See the TeXbook (page 95) for more details.