function [cc] = dfre_read(dat)
% [cc] = dfre_read(dat)
%
% converts the dfre data from nums to chars

iSPC=1; iNEWL=1;
iPUNC=2; iAPOS=2; iDQT=2;
iDOT=3;
iNUM=4;
iALPHA=5;
iMAX=30;

dd=dat;

cc(find(dd==iSPC ))=32;
cc(find(dd==iPUNC))=35;
cc(find(dd==iDOT ))=46;
cc(find(dd==iNUM))=57;
ff=find((dd>=iALPHA) & (dd<=iMAX));
cc(ff)=65+dd(ff)-iALPHA;
cc=char(cc);
