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#import "XADSARParser.h"
#import "XADRegex.h"
@implementation XADSARParser
+(int)requiredHeaderSize { return 6; }
+(BOOL)recognizeFileWithHandle:(CSHandle *)handle firstBytes:(NSData *)data name:(NSString *)name
{
if(!name) return NO;
if(![[name lastPathComponent] matchedByPattern:@"^arc[0-9]*\\.sar$" options:REG_ICASE]) return NO;
//const uint8_t *bytes=[data bytes];
//int length=[data length];
return YES;
}
-(void)parse
{
CSHandle *fh=[self handle];
int numfiles=[fh readUInt16BE];
if(numfiles==0) numfiles=[fh readUInt16BE];
uint32_t offset=[fh readUInt32BE];
for(int i=0;i<numfiles && [self shouldKeepParsing];i++)
{
NSMutableData *namedata=[NSMutableData data];
uint8_t c;
while((c=[fh readUInt8])) [namedata appendBytes:&c length:1];
uint32_t dataoffs=[fh readUInt32BE];
uint32_t datalen=[fh readUInt32BE];
NSMutableDictionary *dict=[NSMutableDictionary dictionaryWithObjectsAndKeys:
[self XADPathWithData:namedata separators:XADWindowsPathSeparator],XADFileNameKey,
[NSNumber numberWithUnsignedLong:datalen],XADFileSizeKey,
[NSNumber numberWithUnsignedLong:datalen],XADCompressedSizeKey,
[NSNumber numberWithUnsignedLong:datalen],XADDataLengthKey,
[NSNumber numberWithUnsignedLong:dataoffs+offset],XADDataOffsetKey,
[self XADStringWithString:@"None"],XADCompressionNameKey,
nil];
[self addEntryWithDictionary:dict retainPosition:YES];
}
}
-(CSHandle *)handleForEntryWithDictionary:(NSDictionary *)dict wantChecksum:(BOOL)checksum
{
return [self handleAtDataOffsetForDictionary:dict];
}
-(NSString *)formatName { return @"SAR"; }
@end
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