#include <stdio.h>
#include <string.h>

#include "debug.h"
#include "document.h"
#include "mf_cob_expand.h"

int mf_cob_expand( char *line )
{
	char	newline[ LINE_LENGTH ];
	unsigned char	this, repeat;
	int		c, l, offset;
	int		i;

	bzero( newline, LINE_LENGTH );
	l = strlen( line );
	offset = 0;
	for( c = 0; c < l; c++ )
	{
		this = line[ c ];
		if( this > 127 )
		{
			/* RLE char */
			if( this < 225 )
			{
				if( this > 190 )
				{
		  			/* Repeat 0 */
		  			for( i = ( int )this - 192; i >= 0; i-- )
		  			{
		    			newline[ offset++ ] = '0';
		  			}
				}else
				{
	  				/* Repeat space */
	  				for( i = ( int )this - 128; i >= 0; i-- )
	  				{
	   	 				newline[ offset++ ] = ' ';
	  				}
				}
      		}else
      		{
				/* This is next char RLE */
				repeat = line[ ++c ];
				for( i = ( int )this - 224; i >= 0; i-- )
				{
		  			newline[ offset++ ] = repeat;
				}
			}
		}else
		{
			/* Literal */
			newline[ offset++ ] = line[ c ];
		}
	}

	/* Yeah, we could buffer overflow here if we hadn't written both halves.
	   but the buffers are the same size.  Oh well.  */
	strcpy( line, newline );
}