////   Cfo  rall   Ver  sion  
 1.0  .0 C  opyr  ight   (C)  
 201  7 Un  iver  sity   of   
Wate  rloo  ////   The   con  
tent  s of   thi  s fi  le a  
re c  over  ed u  nder   the  
 lic  ence   agr  eeme  nt i  
n th  e//   file   "LI  CENC  
E" d  istr  ibut  ed w  ith   
Cfor  all.  ////   fmt  Line  
s.cc   --/  ///   Auth  or    
             : P  eter   A.   
Buhr  // C  reat  ed O  n     
      : Su  n Se  p 17   21:  
56:1  5 20  17//   Las  t Mo  
difi  ed B  y :   Pete  r A.  
 Buh  r//   Last   Mod  ifie  
d On   : M  on S  ep 1  8 11  
:35:  57 2  017/  / Up  date  
 Cou  nt       :   31/  /#in  
clud  e <f  stre  am.h  fa>#  
incl  ude   <cor  outi  ne.h  
fa>c  orou  tine   For  mat   
{	ch  ar c  h;		  				  				  
	//   used   for   com  muni  
cati  on	i  nt g  , b;  				  
				  			/  / gl  obal   bec  
ause   use  d in   des  truc  
tor}  ;voi  d ?{  }( F  orma  
t &   fmt   ) {      r  esum  
e( f  mt )  ;			  				  			/  
/ st  art   coro  utin  e}vo  
id ^  ?{}(   For  mat   & fm  
t )   {      if   ( fm  t.g   
!= 0   ||   fmt.  b !=   0 )  
 sou  t |   endl  ;}vo  id m  
ain(   For  mat   & fm  t )   
{	fo  r (   ;; )   {		  				  
				  // f  or a  s ma  ny c  
hara  cter  s		f  or (   fmt  
.g =   0;   fmt.  g <   5; f  
mt.g   +=   1 )   {		/  / gr  
oups   of   5 bl  ocks  			f  
or (   fmt  .b =   0;   fmt.  
b <   4; f  mt.b   +=   1 )   
{	//   blo  cks   of 4   cha  
ract  ers	  			f  or (   ;;   
) {	  				  		//   for   new  
line   cha  ract  ers	  				  
susp  end(  );		  			i  f (   
fmt.  ch !  = '\  n' )   bre  
ak;	  	//   igno  re n  ewli  
ne		  		}   // f  or		  		so  
ut |   fmt  .ch;  				  			/  
/ pr  int   char  acte  r			  
} //   for  			s  out   | "   
 ";	  				  			/  / pr  int   
bloc  k se  para  tor	  	} /  
/ fo  r		s  out   | en  dl;	  
				  				  // p  rint   gro  
up s  epar  ator  	} /  / fo  
r} /  / ma  invo  id p  rt(   
Form  at &   fmt  , ch  ar c  
h )   {      fmt  .ch   = ch  
;      res  ume(   fmt   );}  
 //   prti  nt m  ain(  ) {	  
Form  at f  mt;	  char   ch;  
	for   ( ;  ; )   {		s  in |  
 ch;  				  				  		//   rea  
d on  e ch  arac  ter	    if  
 ( e  of(   sin   ) )   brea  
k;		  				  	//   eof   ?		p  
rt(   fmt,   ch   );	}   //   
for}   //   main  // L  ocal  
 Var  iabl  es:   ////   tab  
-wid  th:   4 //  // c  ompi  
le-c  omma  nd:   "cfa   fmt  
Line  s.c"   ///  / En  d: /  
/