static rc_t CC write_to_namelist( void * dst, const String * S )
{
rc_t rc = 0;
VNamelist * namelist = dst;
if ( S->len > 3 && S->addr[ 0 ] == '@' && S->addr[ 1 ] == 'R' && S->addr[ 2 ] == 'G' )
rc = VNamelistAppendString ( namelist, S );
return rc;
}
static rc_t LoadFromFile( struct KFile const * f, VNamelist * nl )
{
rc_t rc = 0;
uint64_t pos = 0;
char buffer[ 4096 ];
buffer_range range;
bool done = false;
range.start = buffer;
range.count = 0;
range.processed = 0;
range.state = STATE_ALPHA;
do
{
size_t num_read;
rc = KFileRead ( f, pos, ( char * )( range.start + range.processed ),
( sizeof buffer ) - range.processed, &num_read );
if ( rc == 0 )
{
done = ( num_read == 0 );
if ( !done )
{
range.start = buffer;
range.count = range.processed + num_read;
LoadFromBuffer( nl, &range );
if ( range.count > 0 )
{
memmove ( buffer, range.start, range.count );
}
range.start = buffer;
range.processed = range.count;
pos += num_read;
}
else if ( range.state == STATE_ALPHA )
{
String S;
S.addr = range.start;
S.len = S.size = range.count;
VNamelistAppendString ( nl, &S );
}
}
} while ( rc == 0 && !done );
return rc;
}
/* ========================================================================================= */
static rc_t vds_add_to_sections( const char * path, uint32_t start, uint32_t len, VNamelist * sections )
{
String S;
StringInit( &S, &( path[ start ] ), len, len );
return VNamelistAppendString ( sections, &S );
}
static void LoadFromBuffer( VNamelist * nl, buffer_range * range )
{
uint32_t idx;
const char * p = range->start;
String S;
S.addr = p;
S.len = S.size = range->processed;
for ( idx = range->processed; idx < range->count; ++idx )
{
switch( p[ idx ] )
{
case 0x0A :
switch( range->state )
{
case STATE_ALPHA : /* ALPHA --> LF */
VNamelistAppendString ( nl, &S );
range->state = STATE_LF;
break;
case STATE_LF : /* LF --> LF */
VNamelistAppend ( nl, empty_str );
break;
case STATE_NL : /* NL --> LF */
VNamelistAppend ( nl, empty_str );
range->state = STATE_LF;
break;
}
break;
case 0x0D :
switch( range->state )
{
case STATE_ALPHA : /* ALPHA --> NL */
VNamelistAppendString ( nl, &S );
range->state = STATE_NL;
break;
case STATE_LF : /* LF --> NL */
range->state = STATE_NL;
break;
case STATE_NL : /* NL --> NL */
VNamelistAppend ( nl, empty_str );
break;
}
break;
default :
switch( range->state )
{
case STATE_ALPHA : /* ALPHA --> ALPHA */
S.len++;
S.size++;
break;
case STATE_LF : /* LF --> ALPHA */
S.addr = &p[ idx ];
S.len = S.size = 1;
range->state = STATE_ALPHA;
break;
case STATE_NL : /* NL --> ALPHA */
S.addr = &p[ idx ];
S.len = S.size = 1;
range->state = STATE_ALPHA;
break;
}
break;
}
}
if ( range->state == STATE_ALPHA )
{
range->start = S.addr;
range->count = S.len;
}
else
range->count = 0;
}
