Fix closing of EOF open preformat context

src/syntax/content/parser/token/anchor.rs

@@ -1,6 +1,6 @@
 use crate::syntax::content::{Parseable, parser::lexeme::Lexeme};
 
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, Eq, PartialEq)]
 pub struct Anchor {
     pub text: String,
     pub destination: Option<String>,

src/syntax/content/parser/token/code.rs

@@ -2,7 +2,7 @@ use crate::{
     syntax::content::{Parseable, Lexeme},
 };
 
-#[derive(Debug)]
+#[derive(Debug, Eq, PartialEq)]
 pub struct Code {
     open: bool,
 }

src/syntax/content/parser/token/header.rs

@@ -10,7 +10,7 @@ use crate::{
 
 use std::fmt::Display;
 
-#[derive(Debug)]
+#[derive(Debug, Eq, PartialEq)]
 pub struct Header {
     open: Option<bool>,
     level: Level,
@@ -111,7 +111,7 @@ impl Parseable for Header {
     }
 }
 
-#[derive(Debug)]
+#[derive(Debug, Eq, PartialEq)]
 pub enum Level {
     One,
     Two,

src/syntax/content/parser/token/linebreak.rs

@@ -2,7 +2,7 @@ use crate::{
     syntax::content::{Parseable, parser::lexeme::Lexeme},
 };
 
-#[derive(Debug)]
+#[derive(Debug, Eq, PartialEq)]
 pub struct LineBreak {}
 
 impl Parseable for LineBreak {

src/syntax/content/parser/token/literal.rs

@@ -1,6 +1,6 @@
 use crate::syntax::content::{Parseable, parser::lexeme::Lexeme};
 
-#[derive(Debug)]
+#[derive(Debug, Eq, PartialEq)]
 pub struct Literal {
     text: String,
 }

src/syntax/content/parser/token/paragraph.rs

@@ -1,6 +1,6 @@
 use crate::syntax::content::{Parseable, parser::lexeme::Lexeme};
 
-#[derive(Debug)]
+#[derive(Debug, Eq, PartialEq)]
 pub struct Paragraph {
     open: Option<bool>,
 }

src/syntax/content/parser/token/preformat.rs

@@ -2,7 +2,7 @@ use crate::{
     syntax::content::{Parseable, Lexeme},
 };
 
-#[derive(Debug)]
+#[derive(Debug, Eq, PartialEq)]
 pub struct PreFormat {
     open: Option<bool>,
 }
@@ -15,7 +15,7 @@ impl PreFormat {
 
 impl Parseable for PreFormat {
     fn probe(lexeme: &Lexeme) -> bool {
-        lexeme.match_first_char('`') && lexeme.next == "\n"
+        lexeme.match_first_char('`') && (lexeme.next() == "\n" || lexeme.last())
     }
 
     fn lex(_lexeme: &Lexeme) -> PreFormat {

src/syntax/content/parser/token/span.rs

@@ -1,6 +1,6 @@
 use crate::syntax::content::{Parseable, parser::lexeme::Lexeme};
 
-#[derive(Debug)]
+#[derive(Debug, Eq, PartialEq)]
 pub struct Span {
     open: Option<bool>,
 }