use anyhow::{Result, Error};
use deno_core::JsRuntime;
use deno_core::RuntimeOptions;
#[derive(Parser, Debug)]
    /// Path to the file to be read
    /// JS matcher to be used
fn main() -> Result<()> {
    // Parse the arguments...
    let args = Args::parse();
    // Does the path exist?
        return Err(Error::msg("File does not exist!"));
    // Validate the JS matcher...
    if args.js_matcher.trim().is_empty() {
    // Read in the file...
    // Parse the matcher...
    let mut runtime = JsRuntime::new(
        RuntimeOptions::default(),
    for line in raw.lines() {
        // Serialize the line...
        let s = serde_json::to_string(&line)?;
        let js_matcher = format!(
            "!!((line) => {})({})",
            args.js_matcher.clone().trim(),
        let result = runtime.execute_script(
                let scope = &mut runtime.handle_scope();
                let local = v8::Local::new(scope, global);
                match deserialized_value {
                            serde_json::Value::Bool(b) => {
                                    println!("{}", line);
                            _ => return Err(Error::msg(format!(
                                "JS matcher must return a boolean value!",
                    Err(err) => return Err(Error::msg(
                        format!("Cannot deserialize value: {err:?}"),

Error: Eval error: Uncaught SyntaxError: Unexpected token ';'
    at matcher.js:1:39