SCHEMAS
text/plain
Magic Bytes
Offset: 0
54 68 69 73 20 69 73 20 54 65 58 2C
The SCHEMAS file format is a plaintext configuration or definition file associated with the TeX typesetting system, originally developed by Donald Knuth and maintained by the TeX Users Group. These files primarily define structural hierarchies and layout rules for documents processed within legacy TeX distributions and font management utilities. As a text-based format containing no executable code, it is considered safe for general use, though it has largely been superseded by modern XML-based schema definitions and updated LaTeX packages.
Validation Code
How to validate .schemas files in Python
Python
def is_schemas(file_path: str) -> bool:
"""Check if file is a valid SCHEMAS 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 .schemas files in Node.js
Node.js
function isSCHEMAS(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 IsSCHEMAS(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/schemas
curl https://filesignature.org/api/v1/schemas