Fix handling of whitespace.

src/main.rs

@@ -1,9 +1,9 @@
 #![feature(round_char_boundary)]
+use crate::init_tracing::init_telemetry;
+use crate::init_tracing::shutdown_telemetry;
 use crate::parser::document;
-use tracing_subscriber::EnvFilter;
+mod init_tracing;
 mod parser;
-use tracing_subscriber::layer::SubscriberExt;
-use tracing_subscriber::util::SubscriberInitExt;
 
 const TEST_DOC: &'static str = include_str!("../toy_language.txt");
 
@@ -12,31 +12,6 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     let parsed = document(TEST_DOC);
     println!("{}\n\n\n", TEST_DOC);
     println!("{:#?}", parsed);
-    opentelemetry::global::shutdown_tracer_provider();
-    Ok(())
-}
-
-fn init_telemetry() -> Result<(), Box<dyn std::error::Error>> {
-    let env_filter = EnvFilter::try_from_default_env().unwrap_or(EnvFilter::new("WARN"));
-
-    // let stdout = tracing_subscriber::fmt::Layer::new()
-    //     .pretty()
-    //     .with_file(true)
-    //     .with_line_number(true)
-    //     .with_thread_ids(false)
-    //     .with_target(false);
-
-    opentelemetry::global::set_text_map_propagator(opentelemetry_jaeger::Propagator::new());
-    let tracer = opentelemetry_jaeger::new_pipeline()
-        .with_service_name("toy_language")
-        .install_simple()?;
-
-    let opentelemetry = tracing_opentelemetry::layer().with_tracer(tracer);
-
-    tracing_subscriber::registry()
-        .with(env_filter)
-        .with(opentelemetry)
-        // .with(stdout)
-        .try_init()?;
+    shutdown_telemetry()?;
     Ok(())
 }