RegExOptions.TreatTargetAsOneLIne

From Xojo Documentation

Property (As Boolean )
aRegExOptions.TreatTargetAsOneLine = newBooleanValue
or
BooleanValue = aRegExOptions.TreatTargetAsOneLine

Supported for all project types and targets.

Ignores internal newlines for purposes of matching against '^' and '$'. The default is False.