apply clippy suggestions

src/util/animalnumbers.rs

@@ -24,7 +24,7 @@ pub fn to_animal_names(mut number: u64) -> String {
         number -= digit * ANIMAL_NAMES.len().pow(power) as u64;
         if power > 0 {
             power -= 1;
-        } else if power <= 0 || number == 0 {
+        } else if power == 0 || number == 0 {
             break;
         }
     }
@@ -35,12 +35,12 @@ pub fn to_animal_names(mut number: u64) -> String {
 pub fn to_u64(animal_names: &str) -> Result<u64, &str> {
     let mut result: u64 = 0;
 
-    let animals: Vec<&str> = animal_names.split("-").collect();
+    let animals: Vec<&str> = animal_names.split('-').collect();
 
     let mut pow = animals.len();
-    for i in 0..animals.len() {
+    for animal in animals {
         pow -= 1;
-        let animal_index = ANIMAL_NAMES.iter().position(|&r| r == animals[i]);
+        let animal_index = ANIMAL_NAMES.iter().position(|&r| r == animal);
         match animal_index {
             None => return Err("Failed to convert animal name to u64!"),
             Some(_) => {

src/util/dbio.rs

@@ -4,7 +4,7 @@ use std::io::{BufReader, BufWriter};
 
 use crate::Pasta;
 
-static DATABASE_PATH: &'static str = "pasta_data/database.json";
+static DATABASE_PATH: &str = "pasta_data/database.json";
 
 pub fn save_to_file(pasta_data: &Vec<Pasta>) {
     let mut file = File::create(DATABASE_PATH);

src/util/hashids.rs

@@ -13,6 +13,6 @@ pub fn to_u64(hash_id: &str) -> Result<u64, &str> {
     let ids = HARSH
         .decode(hash_id)
         .map_err(|_e| "Failed to decode hash ID")?;
-    let id = ids.get(0).ok_or("No ID found in hash ID")?;
+    let id = ids.first().ok_or("No ID found in hash ID")?;
     Ok(*id)
 }

src/util/syntaxhighlighter.rs

@@ -11,7 +11,7 @@ pub fn html_highlight(text: &str, extension: &str) -> String {
 
     let syntax = ps
         .find_syntax_by_extension(extension)
-        .or(Option::from(ps.find_syntax_plain_text()))
+        .or_else(|| Option::from(ps.find_syntax_plain_text()))
         .unwrap();
     let mut h = HighlightLines::new(syntax, &ts.themes["InspiredGitHub"]);
 
@@ -33,5 +33,5 @@ pub fn html_highlight(text: &str, extension: &str) -> String {
     highlighted_content2 =
         highlighted_content2.replace("style=\"color:#183691;\"", "style=\"color:blue;\"");
 
-    return highlighted_content2;
+    highlighted_content2
 }