@BeginModule
@Name      = Sethalo
@Title     = Set the left and right bounds of a field
@Section   = Miscellaneous
@Arguments = ifile ofile
@Operators = sethalo

@BeginDescription
This operator sets the left and right bounds of the rectangularly understood fields.
Positive numbers of the parameter @math{lhalo} enlarges the left bound by the given 
number of columns from the right bound. The parameter @math{rhalo} does the similar 
for the right bound. Negative numbers of the parameter @math{lhalo}/@math{rhalo} can 
be used to remove the given number of columns of the left and right bounds.
@EndDescription
@EndModule


@BeginOperator_sethalo
@Title     = Set the left and right bounds of a field
@Parameter = lhalo rhalo
@EndOperator

@BeginParameter
@Item = lhalo
INTEGER  Left halo
@Item = rhalo
INTEGER  Right halo
@EndParameter

@EndOperator
