unikernel/duniverse/dune_/doc/reference/dune/ocamllex.rst

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+ocamllex
+--------
+
+``(ocamllex <names>)`` is essentially a shorthand for:
+
+.. code:: dune
+
+    (rule
+     (target <name>.ml)
+     (deps   <name>.mll)
+     (action (chdir %{workspace_root}
+              (run %{bin:ocamllex} -q -o %{target} %{deps}))))
+
+To use a different rule mode, use the long form:
+
+.. code:: dune
+
+    (ocamllex
+     (modules <names>)
+     (mode    <mode>))