MDO
text/plain
Magic Bytes
Offset: 0
54 68 69 73 20 69 73 20 54 65 58 2C
The MDO format denotes a macro documentation file associated with the TeX typesetting system, originally created by Donald Knuth. These plain text files primarily store explanatory notes and documentation for TeX macros, facilitating the literate programming paradigm inherent to the system. As a simple text-based container for typesetting instructions, it poses minimal security risk but is largely considered a legacy artifact in modern LaTeX development workflows.
Validation Code
How to validate .mdo files in Python
Python
def is_mdo(file_path: str) -> bool:
"""Check if file is a valid MDO by magic bytes."""
signature = bytes([0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x54, 0x65, 0x58, 0x2C])
with open(file_path, "rb") as f:
return f.read(12) == signatureHow to validate .mdo files in Node.js
Node.js
function isMDO(buffer: Buffer): boolean {
const signature = Buffer.from([0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x54, 0x65, 0x58, 0x2C]);
return buffer.subarray(0, 12).equals(signature);
}
Go
func IsMDO(data []byte) bool {
signature := []byte{0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x54, 0x65, 0x58, 0x2C}
if len(data) < 12 {
return false
}
return bytes.Equal(data[:12], signature)
}API Endpoint
GET
/api/v1/mdo
curl https://filesignature.org/api/v1/mdo