[TYPO3-calendar] split field (like titel) in view

[PM]

Hello

How is it possible to split a field/marker in the template.

Example:
The titles are like: Name Firstname - Event
in the template they are used as ###TITLE###

How can I define a marker ###TITLE_FIRSTPART### that uses ###TITLE### 
but splits it at the "-" and returns only the first part of the Title.

(Using 2 fields instead of the title field is not a solution ;-) )

Thanks.