1 files changed, 24 insertions, 0 deletions
diff --git a/motus/js/updateProposition.ml b/motus/js/updateProposition.ml
new file mode 100644
index 0000000..ab10db3
--- /dev/null
+++ b/motus/js/updateProposition.ml
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+(** Update the current propositions when the user change a value in one of the
+    field.
+ *)
+
+open StdLabels
+
+type t =
+  { position : int
+  ; letter : Jstr.t
+  ; validity : State.letter_validity
+  }
+
+let process { position; letter; validity } state =
+  let current_prop =
+    List.mapi state.State.current_prop ~f:(fun pos' content ->
+        if position <> pos'
+        then content
+        else if Jstr.is_empty letter
+        then None
+        else Some (Jstr.uppercased letter, validity) )
+  in
+  FieldList.set_with_props current_prop state.fields state.rules;
+
+  { state with current_prop }