/* 
 *  call-seq:
 *     per_field_analyzer.add_field(field_name, default_analyzer) -> self
 *     per_field_analyzer[field_name] = default_analyzer -> self
 *
 *  Set the analyzer to be used on field +field_name+. Note that field_name
 *  should be a symbol.
 *
 *  field_name:: field we wish to set the analyzer for
 *  analyzer::   analyzer to be used on +field_name+
 */
static VALUE
frt_per_field_analyzer_add_field(VALUE self, VALUE rfield, VALUE ranalyzer)
{
    Analyzer *pfa, *a;
    Data_Get_Struct(self, Analyzer, pfa);
    a = frt_get_cwrapped_analyzer(ranalyzer);

    pfa_add_field(pfa, frt_field(rfield), a);
    return self;
}