diff --git a/examples/by-hand/src/main.rs b/examples/by-hand/src/main.rs
index e507d71..8d313ba 100644
--- a/examples/by-hand/src/main.rs
+++ b/examples/by-hand/src/main.rs
@@ -1,6 +1,6 @@
 use std::time::Instant;
 
-use macroquad::{prelude::*, rand, ui::root_ui};
+use macroquad::{prelude::*, ui::root_ui};
 
 #[macroquad::main("by-hand")]
 async fn main() {
diff --git a/examples/configurable/src/main.rs b/examples/configurable/src/main.rs
index 818e6fd..6cefb79 100644
--- a/examples/configurable/src/main.rs
+++ b/examples/configurable/src/main.rs
@@ -533,8 +533,8 @@ fn generate() -> (
 ) {
     let mut g: StableGraph<(String, Orientation), ()> = StableGraph::new();
 
-    let file = std::fs::File::open(env::args().nth(1).expect("missing gfa file argument")).unwrap();
-    let entries = parser::parse_source(file).unwrap();
+    let entries =
+        parser::parse_file(env::args().nth(1).expect("missing gfa file argument")).unwrap();
 
     let mut index_map = HashMap::new();
 
diff --git a/examples/configurable/src/settings.rs b/examples/configurable/src/settings.rs
index 5a95730..2105fdc 100644
--- a/examples/configurable/src/settings.rs
+++ b/examples/configurable/src/settings.rs
@@ -26,14 +26,14 @@ pub struct SettingsInteraction {
 pub struct SettingsNavigation {
     pub fit_to_screen_enabled: bool,
     pub zoom_and_pan_enabled: bool,
-    pub screen_padding: f32,
+    // pub screen_padding: f32,
     pub zoom_speed: f32,
 }
 
 impl Default for SettingsNavigation {
     fn default() -> Self {
         Self {
-            screen_padding: 0.3,
+            // screen_padding: 0.3,
             zoom_speed: 0.1,
             fit_to_screen_enabled: true,
             zoom_and_pan_enabled: false,
diff --git a/examples/egui-graph-viz/src/main.rs b/examples/egui-graph-viz/src/main.rs
index a329bf7..04cfea5 100644
--- a/examples/egui-graph-viz/src/main.rs
+++ b/examples/egui-graph-viz/src/main.rs
@@ -46,8 +46,7 @@ impl App for InteractiveApp {
 fn generate_graph() -> Graph<(String, Orientation), ()> {
     let mut g: StableGraph<(String, Orientation), ()> = StableGraph::new();
 
-    let file = std::fs::File::open("../../dataset/example.gfa").unwrap();
-    let entries = parser::parse_source(file).unwrap();
+    let entries = parser::parse_file("../../dataset/example.gfa").unwrap();
 
     let mut index_map = HashMap::new();
 
diff --git a/examples/fdg-example/src/main.rs b/examples/fdg-example/src/main.rs
index 39cc4df..b70c4c8 100644
--- a/examples/fdg-example/src/main.rs
+++ b/examples/fdg-example/src/main.rs
@@ -21,8 +21,9 @@ use macroquad::prelude::*;
 async fn main() {
     let mut graph = Graph::<(String, Orientation), ()>::new();
 
-    let file = std::fs::File::open(env::args().nth(1).expect("missing gfa file argument")).unwrap();
-    let entries = parser::parse_source(file).unwrap();
+    let filename = env::args().nth(1).expect("missing gfa file argument");
+
+    let entries = parser::parse_file(filename).expect("failed to parse file");
 
     let mut index_map = HashMap::new();
 
diff --git a/examples/graphs-1/src/main.rs b/examples/graphs-1/src/main.rs
index a9ae7ba..b24829f 100644
--- a/examples/graphs-1/src/main.rs
+++ b/examples/graphs-1/src/main.rs
@@ -137,15 +137,7 @@ fn load_graph() -> StableGraph<(String, Point2<f32>), ()> {
     let mut graph = StableGraph::new();
 
     let filename = env::args().nth(1).expect("missing gfa file argument");
-
-    let file_lines_count = BufReader::new(std::fs::File::open(&filename).expect("file not found"))
-        .lines()
-        .progress_with(indicatif::ProgressBar::new_spinner())
-        .count() as u64;
-
-    let file = std::fs::File::open(filename).unwrap();
-
-    let entries = parser::parse_source(file, file_lines_count).unwrap();
+    let entries = parser::parse_file(filename).expect("failed to parse file");
 
     let mut index_map = HashMap::new();
 
diff --git a/src/parser.rs b/src/parser.rs
index 67c93e5..a89b96f 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -1,4 +1,5 @@
 use std::{
+    borrow::Cow,
     io::{self, BufRead, BufReader, Read},
     str::FromStr,
     thread,
@@ -126,6 +127,17 @@ fn parse_walk(line: &str) -> Entry {
     }
 }
 
+pub fn parse_file<R: AsRef<str>>(file: R) -> io::Result<Vec<Entry>> {
+    let file_lines_count = BufReader::new(std::fs::File::open(file.as_ref())?)
+        .lines()
+        .progress_count(0)
+        .count() as u64;
+
+    let file = std::fs::File::open(file.as_ref())?;
+
+    parse_source(file, file_lines_count)
+}
+
 pub fn parse_source<R: Read>(reader: R, line_count: u64) -> io::Result<Vec<Entry>> {
     let mut entries = Vec::new();
     let mut skipped = Vec::new();