Updated amino acids table and implemented display for strictness level

Author: douweschulte

src/reference_tables.rs

@@ -73,9 +73,9 @@ const REMARK_TYPES: [usize; 42] = [
 /// All amino acids. Includes Amber-specific naming conventions for (de-)protonated versions, CYS involved in
 /// disulfide bonding and the like.
 const AMINO_ACIDS: &[&str] = &[
-    "ALA", "ARG", "ASH", "ASN", "ASP", "CYS", "CYX", "GLH", "GLN", "GLU", "GLY", "HID", "HIE",
-    "HIM", "HIP", "HIS", "ILE", "LEU", "LYN", "LYS", "MET", "PHE", "PRO", "SER", "THR", "TRP",
-    "TYR", "VAL",
+    "ALA", "ARG", "ASH", "ASN", "ASP", "ASX", "CYS", "CYX", "GLH", "GLN", "GLU", "GLY", "HID",
+    "HIE", "HIM", "HIP", "HIS", "ILE", "LEU", "LYN", "LYS", "MET", "PHE", "PRO", "SER", "THR",
+    "TRP", "TYR", "VAL", "SEC", "PYL",
 ];
 
 /// The names of atom in the backbone of proteins

src/strictness_level.rs

@@ -1,3 +1,5 @@
+use std::fmt::Display;
+
 #[cfg(doc)]
 use crate::ErrorLevel;
 
@@ -11,3 +13,17 @@ pub enum StrictnessLevel {
     /// With `Loose` the program will allow [`ErrorLevel::GeneralWarning`] and [`ErrorLevel::LooseWarning`].
     Loose,
 }
+
+impl Display for StrictnessLevel {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(
+            f,
+            "{}",
+            match self {
+                StrictnessLevel::Strict => "Strict",
+                StrictnessLevel::Medium => "Medium",
+                StrictnessLevel::Loose => "Loose",
+            }
+        )
+    }
+}