DIFFERENCE( ) example
The following example sets a filter in the current work area to show those records whose Title field sounds like the word typed in the entryfield soundsLike:
function showTitlesLike_onClick()
private cArg
cArg = form.soundsLike.value
set filter to difference( TITLE, "&cArg" ) == 4 // Best matches only
Macro substitution is used to convert the value in the entryfield into a literal string for the filter expression.