Fix unbalanced anchor tags

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

@@ -2,12 +2,12 @@ use crate::{
     syntax::content::{Parseable, parser::lexeme::Lexeme},
 };
 
-#[derive(Debug, Clone, Eq, PartialEq)]
+#[derive(Default, Debug, Clone, Eq, PartialEq)]
 pub struct LineBreak {}
 
 impl Parseable for LineBreak {
     fn probe(lexeme: &Lexeme) -> bool {
-        lexeme.text() == "\n"
+        lexeme.text() == "\n" && !lexeme.last()
     }
 
     fn lex(_lexeme: &Lexeme) -> LineBreak {

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

@@ -6,8 +6,8 @@ pub struct Literal {
 }
 
 impl Parseable for Literal {
-    fn probe(_lexeme: &Lexeme) -> bool {
-        true
+    fn probe(lexeme: &Lexeme) -> bool {
+        !(lexeme.last() && lexeme.is_whitespace())
     }
 
     fn lex(lexeme: &Lexeme) -> Literal {

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

@@ -9,6 +9,10 @@ impl Paragraph {
     pub fn new(open: bool) -> Paragraph {
         Paragraph { open: Some(open) }
     }
+
+    pub fn probe_end(lexeme: &Lexeme) -> bool {
+        lexeme.match_as_char('\n') && lexeme.match_next_as_char('\n')
+    }
 }
 
 impl Parseable for Paragraph {