[Tex/LaTex] Hyphenation for words with underscore

hyphenationsymbols

Can I tell LaTeX that it may hyphen words that contain an underscore _ always before the underscore?

I have a lot of code examples in text, like is_error_condition_enum and I would like to tell LaTeX it may hyphen this as:

Lorem ipsum is_error_-
condition_enum lorem.

always.

If that is not possible globally, how do I make an entry for some underscore-words like:

\hyphenation{is_-error_-condition_-enum}

because that entry is rejected, obviously.

In sourcecode I write words like these as \gpmono{is\gpus{}error\gpus{}condition\gpus{}enum}.

Best Answer

\newcommand{\gpus}{\_\discretionary{-}{}{}}

If \gpus is used in other places where hyphenation is not wanted, you can modify its definition only in the argument of \gpmono:

\newcommand{\gpmono}[1]{\begingroup
   \renewcommand{\gpus}{\_\discretionary{-}{}{}}%
   \ttfamily#1\endgroup}

Of course, without knowing your original definitions of \gpmono and \gpus, I tried to guess.

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