I recently came across a kaitai struct to deal with arbitrary binary formats. Now the thing is I have a hex-dump what I mean by that is I have a file which i want to parse and its in hex format when i use the visualizer in the web ide of kaitai for the mapping of data, it's converting the hex data again into hex is there any way i can convert the data from hex and get the exact hex data when i use the visualizer.
for example consider this 3335363330 and then again its mapping it to 33 33 33 35 33 36 33 33 33 30
thanks in advance
Currently the Kaitai WebIDE & the console visualizer (ksv) does not support reading hex-encoded files, only raw binary files.
The solution is to convert the hex-encoded (text) file to a binary one first and then load the binary file into Kaitai.
You can do this by calling xxd -r -p <input_file >output_file on Linux or eg. calling this small Python script: python -c "open('output_file','wb').write(open('input_file','r').read().strip().decode('hex'))". The latter works on any machine where Python 2 is installed.