5 files changed, 63 insertions, 0 deletions
diff --git a/lib/data_types/dune b/lib/data_types/dune
new file mode 100644
index 0000000..e38310b
--- /dev/null
+++ b/lib/data_types/dune
@@ -0,0 +1,10 @@
+(library
+ (name importDataTypes)
+ (libraries 
+   importCSV
+ )
+
+ (preprocess (pps ppx_deriving.ord))
+ )
+
+
diff --git a/lib/data_types/path.ml b/lib/data_types/path.ml
new file mode 100644
index 0000000..6684b5a
--- /dev/null
+++ b/lib/data_types/path.ml
@@ -0,0 +1,15 @@
+type column = int [@@deriving ord]
+
+type t = {
+  alias : string option;
+      (* External file to load, when the information is missing, load in
+              the current file *)
+  column : column;
+}
+[@@deriving ord]
+
+let repr { alias; column } =
+  let column_text = ImportCSV.Csv.column_to_string column in
+  match alias with
+  | None -> ":" ^ column_text
+  | Some value -> ":" ^ value ^ "." ^ column_text
diff --git a/lib/data_types/readme.rst b/lib/data_types/readme.rst
new file mode 100644
index 0000000..ac609d2
--- /dev/null
+++ b/lib/data_types/readme.rst
@@ -0,0 +1,4 @@
+This module contains all the types used in the application.
+
+It does not depends on any other library, and does not cause any dependency
+cycle.
diff --git a/lib/data_types/table.ml b/lib/data_types/table.ml
new file mode 100644
index 0000000..d807c5c
--- /dev/null
+++ b/lib/data_types/table.ml
@@ -0,0 +1,19 @@
+open StdLabels
+
+type t = {
+  file : string;
+  tab : int;
+  name : string;
+}
+
+(** Get the internal name for the given table. 
+
+    This value may differ from the association name given in the configuration. *)
+let name : t -> string =
+ fun source ->
+  let file_name =
+    source.file |> Filename.basename |> Filename.remove_extension
+  in
+  match source.tab with
+  | 1 -> file_name
+  | _ -> String.concat ~sep:"_" [ file_name; string_of_int source.tab ]
diff --git a/lib/data_types/types.ml b/lib/data_types/types.ml
new file mode 100644
index 0000000..37fd90f
--- /dev/null
+++ b/lib/data_types/types.ml
@@ -0,0 +1,15 @@
+type t =
+  | Number
+  | String
+  | Bool
+  | None
+  | Extern
+  | Float
+
+let string_of_t : t -> string = function
+  | Number -> "Number"
+  | String -> "String"
+  | Bool -> "Bool"
+  | None -> "None"
+  | Extern -> "Extern"
+  | Float -> "Float"