After deadline commit

src/parser/mod.rs

@@ -175,6 +175,9 @@ pub trait Parser {
         self.priv_parse_into_model(model, path)
     }
 
+    /// Parses a file and adds its content to an already existing model.
+    ///
+    /// This is the method you should implement for you format parser.
     fn priv_parse_into_model(&mut self, model: &mut Model, path: &str) -> Result<(), ParserError>;
 }
 
@@ -205,6 +208,8 @@ impl<LP: LineParser> Parser for LP {
         use std::io::BufRead;
         for (num, line) in file.lines().enumerate() {
 
+            let num = num + 1;
+
             if line.is_err() {
                 return Err(ParserError::OtherError(path.to_owned()));
             }