lib/ruote/exp/ro_attributes.rb
def lookup_val(att_options={})

      lval(
        VV,
        s_cartesian(%w[ v var variable ], VV),
        s_cartesian(%w[ f fld field ], VV),
        att_options)
    end
# Given a list of attribute names, returns the first attribute name for
# which there is a value.
#
Given a list of attribute names, returns the first attribute name for
which there is a value.
Given a list of attribute names returns the first attribute name for which there is a value .
def lookup_val(att_options={})
      lval(
        VV,
        s_cartesian(%w[ v var variable ], VV),
        s_cartesian(%w[ f fld field ], VV),
        att_options)
    end
def lookup_val ( att_options = { } ) lval ( VV , s_cartesian ( %w[ v var variable ] , VV ) , s_cartesian ( %w[ f fld field ] , VV ) , att_options ) end
Given a list of attribute names, returns the first attribute name for
which there is a value.
Given a list of attribute names returns the first attribute name for which there is a value .
att_options