diff --git a/src/parser.rs b/src/parser.rs
index a670af4..fc5373e 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -11,29 +11,6 @@ struct Structure {
      * - def variable
      * - def function
      * - pipes
-     *
-     * Cas 1; commande
-     *  name: "commande"
-     *  contents: ["nom commande", "parametter", "arg1", ...]
-     *
-     * Cas 2; control
-     *  name: "control"
-     *  contents: ["if|elif|else|while|for", "condition", "liste String avec (faudra la reparser
-     *  quand on tomberas dessus pour obtenir son objet de classe Entree) "]
-     *
-     * Cas 3; def variable
-     *  name: "variable"
-     *  contents: ["type [string|list]", "name", "value"]
-     *
-     * Cas 4; def function
-     *  name: "function"
-     *  contents: ["name", "nb parametter", "param1", ..., "liste String interieur fonction(faudra
-     *  la repasser quand on tomberas dessus pour obtenir son objet de classe Entree)"]
-     *
-     * Cas 5; pipes
-     *  name: "pipe"
-     *  contents: ["String Commande1 (faudra la repasser dans le parser)", "String Commande2(tout
-     *  le reste du pipe faudra le repasser dans le parser)"]
      */
 
     name: String,
@@ -41,18 +18,68 @@ struct Structure {
 }
 
 impl Structure {
+    /*
+     *  name: "commande"
+     *  contents: ["nom commande", "parametter", "arg1", ...]
+     *
+     *  parametter define if the command is in background or not. For now, parametter can only be
+     *  either "" or "&"
+     */
     fn new_commande(cont: Vec<String>) -> Self {
         Self {
             name: String::from("commande"),
             contents: cont,
         }
     }
+    /*
+     *  name: "control"
+     *  contents: ["if|elif|else|while|for", "condition", "liste String avec (faudra la reparser
+     *  quand on tomberas dessus pour obtenir son objet de classe Entree) "]
+     */
     fn new_control(cont: Vec<String>) -> Self {
         Self {
             name: String::from("control"),
             contents: cont,
         }
     }
+    /*
+     *  name: "variable"
+     *  contents: ["type [string|list]","parametter", "name", "value"]
+     *
+     *  parametter says if the variable is to export or not. right now it's either "" or "export"
+     */
+    fn new_variable(cont: Vec<String>) -> Self {
+        Self {
+            name: String::from("variable"),
+            contents: cont,
+        }
+    }
+    /*
+     *  name: "function"
+     *  contents: ["name", "nb parametter", "param1", ..., "liste String interieur fonction(faudra
+     *  la repasser quand on tomberas dessus pour obtenir son objet de classe Entree)"]
+     */
+    fn new_function(cont: Vec<String>) -> Self {
+        Self {
+            name: String::from("variable"),
+            contents: cont,
+        }
+    }
+    /*
+     *  name: "pipe"
+     *  contents: ["String Commande1 (faudra la repasser dans le parser)", "String Commande2(tout
+     *  le reste du pipe faudra le repasser dans le parser)"]
+     */
+    fn new_pipe(cont: Vec<String>) -> Self {
+        Self {
+            name: String::from("pipe"),
+            contents: cont,
+        }
+    }
+    fn get_name(&self) -> &String {
+        &self.name
+    }
+
 }
 
 struct Entree {
@@ -64,12 +91,18 @@ struct Entree {
 }
 
 impl Entree {
-    fn new() -> Self {
+    pub fn new() -> Self {
         Self {
             size: 0,
             inputs: Vec::new(),
         }
     }
+
+    pub fn add_structure(&mut self, structure: Structure) -> i8 {
+        self.inputs.push(structure);
+        0
+    }
+
 }