1 files changed, 19 insertions, 0 deletions
diff --git a/lib/stif/codifligne_line_id.rb b/lib/stif/codifligne_line_id.rb
new file mode 100644
index 000000000..8c1bcc54b
--- /dev/null
+++ b/lib/stif/codifligne_line_id.rb
@@ -0,0 +1,19 @@
+module STIF
+  module CodifligneLineId extend self
+
+    LINE_OBJECT_ID_SEPERATOR = ':'
+
+    def lines_set_from_functional_scope(functional_scope)
+      Set.new(
+        functional_scope
+          .map{ |line| extract_codif_line_id line })
+    end
+
+
+    private
+
+    def extract_codif_line_id line_name
+      line_name.split(LINE_OBJECT_ID_SEPERATOR).last
+    end
+  end
+end