rvt 0.4.0

//! Dump the raw 32 bytes immediately around each class-name
//! occurrence in `Formats/Latest` so we can learn the tag encoding.
//!
//! Phase C discovery probe — fed the RE that produced the
//! class-tag u16 + 0x8000 flag-bit layout now pinned in
//! `src/formats.rs`. Takes one CLI arg: the path to a Revit file.

use rvt::{RevitFile, compression, streams::FORMATS_LATEST};

fn main() -> anyhow::Result<()> {
    let path = std::env::args().nth(1).expect("path");
    let mut rf = RevitFile::open(&path)?;
    let raw = rf.read_stream(FORMATS_LATEST)?;
    let decomp = compression::inflate_at(&raw, 0)?;
    for name in ["ADocument", "DBView", "Symbol", "HostObj", "Category"] {
        let bytes = name.as_bytes();
        if let Some(pos) = decomp.windows(bytes.len()).position(|w| w == bytes) {
            let start = pos.saturating_sub(4);
            let end = (pos + bytes.len() + 16).min(decomp.len());
            println!("\n{name} @ {pos} (0x{pos:x})");
            print!("  pre: ");
            for b in &decomp[start..pos] {
                print!("{:02x} ", b);
            }
            print!("| name: ");
            for b in &decomp[pos..pos + bytes.len()] {
                print!("{:02x} ", b);
            }
            print!("| post: ");
            for b in &decomp[pos + bytes.len()..end] {
                print!("{:02x} ", b);
            }
            println!();
        } else {
            println!("\n{name}: NOT FOUND");
        }
    }
    Ok(())
}