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Pascal Binary File Format Analysis

Files with binary file I/O: 29

File Binary File Declarations
COMMON.PAS 10
MULTINOD.PAS 4
NUV.PAS 4
COMMON1.PAS 3
MAKECLEA.PAS 3
COMMON2.PAS 2
LOGON2.PAS 2
MISC1.PAS 2
MISC2.PAS 2
MISC5.PAS 2
CMD.PAS 1
CONF.PAS 1
FILE1.PAS 1
FILE12.PAS 1
FILE5.PAS 1
FILE8.PAS 1
IMP.PAS 1
IMPDOS.PAS 1
INSTALL.PAS 1
MSGPACK.PAS 1
NEWUSERS.PAS 1
RUMORS.PAS 1
SYSOP11.PAS 1
SYSOP2A.PAS 1
SYSOP2I.PAS 1
SYSOP2J.PAS 1
SYSOP2S.PAS 1
SYSOP3.PAS 1
SYSOP6.PAS 1

Binary File Types

Pascal uses typed files (FILE OF RecordType) for binary I/O. These files store records in binary format with no metadata.

Common Binary Files in BBS Systems:

  • USERS.DAT - User account records
  • FILES.DAT - File area records
  • MESSAGES.DAT - Message base
  • CONFIG.DAT - System configuration

Rust Migration Strategy

Options:

  1. bincode crate - Binary serialization (similar to Pascal typed files)
  2. serde with bincode - Structured serialization with metadata
  3. Custom binary format - Manual Read/Write implementation

Recommended Approach:

use bincode;
use serde::{Serialize, Deserialize};

#[derive(Serialize, Deserialize)]
struct UserRecord {
    // fields
}

// Write
let encoded = bincode::serialize(&user)?;
file.write_all(&encoded)?;

// Read
let user: UserRecord = bincode::deserialize(&bytes)?;