diff --git a/doc/uml/lib/class.puml b/doc/uml/lib/class.puml
index 67cd609..54b4e9e 100644
--- a/doc/uml/lib/class.puml
+++ b/doc/uml/lib/class.puml
@@ -1,6 +1,7 @@
 @startuml "bliplib class diagram"
 
 left to right direction
+skinparam linetype ortho
 
 package std {
     interface From<T> {
@@ -18,6 +19,29 @@ package fasteval {
 
 package parser {
     interface TokenParser<I>
+    struct ParserParametters<'n, 's, 'v, I: Input + Clone + nom::Compare<I>, C: Into<char>> {
+        +notes: &'n [I]
+        +slopes: &'s HashMap<I, VariableChange>
+        +variables: &'v [C]
+    }
+    struct Parser<'i, 'n, 's, 'v, I: Input + Clone, C: Into<char>> {
+        -input: &'i I
+        -parametters: ParserParametters<'n, 's, 'v, I, C>
+        +parse_all(): Result<Vec<Box<dyn Token>>, nom::Error<nom_locate::LocatedSpan<&'i I>>>
+    }
+    struct ParserBuilder<'i, 'n, 's, 'v, I: Input + Clone, C: Into<char>> {
+        -input: Option<&'i I>
+        -notes: Option<&'n [I]>
+        -slopes: Option<&'s HashMap<I, VariableChange>>
+        -variables: Option<&'v [C]>
+        +input(self, input: &'i I): Self
+        +notes(self, notes: &'n [I]): Self
+        +slopes(self, slopes: &'s HashMap<I, VariableChange>): Self
+        +variables(self, variables: &'v [C]): Self
+    }
+}
+
+package compiler {
     interface Token {
         -apply(&self, context: Context): Context
     }
@@ -50,49 +74,6 @@ package parser {
         +each_frame: VariableChange
         -parser<'n, 's, 'v, I: Input + Clone + nom::Compare<I>, C: Into<char>>(parametters: ParserParametters<'n, 's, 'v, I, C>): impl TokenParser<I>
     }
-    Silence ..|> Token
-    Marker ..|> Token
-    Note ..|> Token
-    VariableChange ..|> Token
-    Loop ..|> Token
-    Tuplet ..|> Token
-    Slope ..|> Token
-    Silence --> TokenParser
-    Marker --> TokenParser
-    Note --> TokenParser
-    VariableChange --> TokenParser
-    Loop --> TokenParser
-    Tuplet --> TokenParser
-    Slope --> TokenParser
-    struct ParserParametters<'n, 's, 'v, I: Input + Clone + nom::Compare<I>, C: Into<char>> {
-        +notes: &'n [I]
-        +slopes: &'s HashMap<I, VariableChange>
-        +variables: &'v [C]
-    }
-    Loop --> ParserParametters
-    Tuplet --> ParserParametters
-    Slope --> ParserParametters
-    struct Parser<'i, 'n, 's, 'v, I: Input + Clone, C: Into<char>> {
-        -input: &'i I
-        -parametters: ParserParametters<'n, 's, 'v, I, C>
-        +parse_all(): Result<Vec<Box<dyn Token>>, nom::Error<nom_locate::LocatedSpan<&'i I>>>
-    }
-    struct ParserBuilder<'i, 'n, 's, 'v, I: Input + Clone, C: Into<char>> {
-        -input: Option<&'i I>
-        -notes: Option<&'n [I]>
-        -slopes: Option<&'s HashMap<I, VariableChange>>
-        -variables: Option<&'v [C]>
-        +input(self, input: &'i I): Self
-        +notes(self, notes: &'n [I]): Self
-        +slopes(self, slopes: &'s HashMap<I, VariableChange>): Self
-        +variables(self, variables: &'v [C]): Self
-    }
-    Token --> Parser
-    Parser --> VariableChange
-    ParserBuilder --> VariableChange
-}
-
-package compiler {
     struct Context {
         +result: Vec<f64>
         +variables: HashMap<char, f64>
@@ -103,6 +84,29 @@ package compiler {
     }
 }
 
+compiler.Silence ..|> Token
+compiler.Marker ..|> Token
+compiler.Note ..|> Token
+compiler.VariableChange ..|> Token
+compiler.Loop ..|> Token
+compiler.Tuplet ..|> Token
+compiler.Slope ..|> Token
+compiler.Token --> parser.Parser
+parser.Parser --> VariableChange
+parser.ParserBuilder --> VariableChange
+
+compiler.Loop --> ParserParametters
+compiler.Tuplet --> ParserParametters
+compiler.Slope --> ParserParametters
+
+compiler.Silence --> TokenParser
+compiler.Marker --> TokenParser
+compiler.Note --> TokenParser
+compiler.VariableChange --> TokenParser
+compiler.Loop --> TokenParser
+compiler.Tuplet --> TokenParser
+compiler.Slope --> TokenParser
+
 interface "From<ParserBuilder>" as from_parserbuilder
 interface "nom::Parser<nom_locate::LocatedSpan<&'i I>>" as nomparser_locatedspan
 
@@ -114,9 +118,9 @@ parser.Parser --> nomparser_locatedspan
 parser.Parser ..|> from_parserbuilder
 parser.TokenParser --|> nomparser_locatedspan: Output = Self, Error = nom::Err<nom::Error<nom_locate::LocatedSpan<&'i I>
 nomparser_locatedspan ..|> parser.TokenParser: for any T
-parser.Slope --> parser.VariableChange
-parser.Token --> compiler.Context
-VariableChange --> Instruction
+compiler.Slope --> compiler.VariableChange
+compiler.Token --> compiler.Context
+compiler.VariableChange --> Instruction
 Context --> Instruction
 
 @enduml
\ No newline at end of file