www.pudn.com > HuffmanForFile.zip > CODE.C

#include  
 
int array[128]={6,33,34,35,36,37,38,39,5,41,42,43,44,45,46,47, 
		48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,7,65,66,67, 
		68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87, 
		88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105, 
		106,107,108,109,110,111,112,113,114,115,116,117,118,119,120, 
		121,122,123,124,125,126,127,3,129,130,131,132,133,134,4, 
		136,137,138,139,140,141,142,143,144,145,146,147,148,149,150, 
		151,152,153,154,155,156,157,158,159}; 
 
main( int argc,char * argv[] ) 
{ 
  FILE * input_file; 
  FILE * output_file; 
  unsigned char rackin; 
  unsigned char rackout; 
  int mask; 
  int i,j,flag; 
  char out_char; 
  unsigned char bit[8]; 
  char conclude; 
 
  if( ( input_file=fopen( argv[1],"r") )==NULL ) 
      { printf( "cant open the input_file " ); 
        exit(0); } 
  output_file=fopen( argv[2],"w" ); 
 
for( ; ; ){ 
  mask=0x01; 
  rackout=0; 
  rackin=getc( input_file ) ; 
  conclude=rackin; 
  if( conclude==EOF ) break; 
  rackout=( rackin>>1 ); 
  out_char=array[rackout]; 
  putc( out_char,output_file ); 
  bit[6]=rackin&mask; 
  bit[6]<<=6; 
 
  mask=0x01; 
  rackout=0; 
  rackin=getc( input_file ); 
  conclude=rackin; 
  if( conclude==EOF ) break; 
  rackout=( rackin>>2 ); 
  rackout |= bit[6]; 
  out_char=array[rackout]; 
  putc( out_char,output_file ); 
  bit[5]=rackin&mask; 
  bit[5]<<=5; 
  mask<<=1; 
  bit[6]=rackin&mask; 
  bit[6]<<=5; 
 
  mask=0x01; 
  rackout=0; 
  rackin=getc( input_file ); 
  conclude=rackin; 
  if( conclude==EOF ) break; 
  rackout=( rackin>>3 ); 
  rackout |= bit[5]; 
  rackout |= bit[6]; 
  out_char=array[rackout]; 
  putc( out_char,output_file ); 
  bit[4]=rackin&mask; 
  bit[4]<<=4; 
  mask<<=1; 
  bit[5]=rackin&mask; 
  bit[5]<<=4; 
  mask<<=1; 
  bit[6]=rackin&mask; 
  bit[6]<<=4; 
 
  mask=0x01; 
  rackout=0; 
  rackin=getc( input_file ); 
  conclude=rackin; 
  if( conclude==EOF ) break; 
  rackout=( rackin>>4 ); 
  rackout |= bit[4]; 
  rackout |= bit[5]; 
  rackout |= bit[6]; 
  out_char=array[rackout]; 
  putc( out_char,output_file ); 
  for( i=3;i<=6;i++ ){ 
       bit[i]=rackin&mask; 
       bit[i]<<=3; 
       mask<<=1; 
       } 
 
  mask=0x01; 
  rackout=0; 
  rackin=getc( input_file ) ; 
  conclude=rackin; 
  if( conclude==EOF ) break; 
  rackout=( rackin>>5 ); 
  for( i=3;i<=6;i++ ) 
       rackout |= bit[i]; 
  out_char=array[rackout]; 
  putc( out_char,output_file ); 
  for( i=2;i<=6;i++ ){ 
       bit[i]=rackin&mask; 
       bit[i]<<=2; 
       mask<<=1; 
       } 
 
  mask=0x01; 
  rackout=0; 
  rackin=getc( input_file ); 
  conclude=rackin; 
  if( conclude==EOF ) break; 
  rackout=( rackin>>6 ); 
  for( i=2;i<=6;i++ ) 
       rackout |= bit[i]; 
  out_char=array[rackout]; 
  putc( out_char,output_file ); 
  for( i=1;i<=6;i++ ){ 
       bit[i]=rackin& mask; 
       bit[i]<<=1; 
       mask<<=1; 
       } 
 
  mask=0x01; 
  rackout=0; 
  rackin=getc( input_file ); 
  conclude=rackin; 
  if( conclude==EOF ) break; 
  rackout=( rackin>>7 ); 
  for( i=1;i<=6;i++ ) 
       rackout |= bit[i]; 
  out_char=array[rackout]; 
  putc( out_char,output_file ); 
 
  rackout=0; 
  mask=0x7f; 
  rackout=rackin & mask ; 
  out_char=array[rackout]; 
  putc( out_char,output_file ); 
} 
  fclose( output_file ); 
  fclose( input_file ); 
  printf("rackin=%dconclude=%d",rackin,conclude); 
}