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//! Pretty-print a VDF file using the `{:#}` Display format.
//!
//! Usage: cargo run --example pretty_print <vdf_file>
//!
//! This example demonstrates the pretty-print Display implementation that
//! outputs valid VDF text format with proper indentation and escaping.
use std::env;
use std::path::Path;
use steam_vdf_parser::{binary, parse_binary, parse_text};
fn main() {
let args: Vec<String> = env::args().collect();
if args.len() < 2 {
eprintln!("Usage: {} <vdf_file>", args[0]);
eprintln!();
eprintln!("Pretty-prints a VDF file to stdout in valid VDF text format.");
eprintln!(
"Supports both text (.vdf) and binary (appinfo.vdf, packageinfo.vdf, shortcuts.vdf) formats."
);
std::process::exit(1);
}
let path = Path::new(&args[1]);
let data = std::fs::read(path).expect("Failed to read file");
// Try to detect format and parse accordingly
let result = if let Ok(text) = std::str::from_utf8(&data) {
// Looks like text, try text parser first
parse_text(text)
.map(|v| v.into_owned())
.or_else(|_| parse_binary(&data).map(|v| v.into_owned()))
} else {
// Binary data - detect format from filename
let filename = path
.file_name()
.and_then(|n| n.to_str())
.unwrap_or_default();
if filename.contains("packageinfo") {
binary::parse_packageinfo(&data).map(|v| v.into_owned())
} else if filename.contains("appinfo") {
binary::parse_appinfo(&data).map(|v| v.into_owned())
} else {
parse_binary(&data).map(|v| v.into_owned())
}
};
match result {
Ok(vdf) => {
// Use the pretty-print Display implementation
println!("{:#}", vdf);
}
Err(e) => {
eprintln!("Error parsing VDF: {:?}", e);
std::process::exit(1);
}
}
}
|
