1 files changed, 0 insertions, 88 deletions
diff --git a/build2/in/rule.hxx b/build2/in/rule.hxx
deleted file mode 100644
index 71dc032..0000000
--- a/build2/in/rule.hxx
+++ /dev/null
@@ -1,88 +0,0 @@
-// file      : build2/in/rule.hxx -*- C++ -*-
-// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
-// license   : MIT; see accompanying LICENSE file
-
-#ifndef BUILD2_IN_RULE_HXX
-#define BUILD2_IN_RULE_HXX
-
-#include <libbuild2/types.hxx>
-#include <libbuild2/utility.hxx>
-
-#include <libbuild2/rule.hxx>
-
-namespace build2
-{
-  namespace in
-  {
-    // Preprocess an .in file.
-    //
-    // Note that a derived rule can use the target data pad to cache data
-    // (e.g., in match()) to be used in substitute/lookup() calls.
-    //
-    // Note also that currently this rule ignores the dry-run mode (see
-    // perform_update() for the rationale).
-    //
-    class rule: public build2::rule
-    {
-    public:
-      // The rule id is used to form the rule name/version entry in depdb. The
-      // program argument is the pseudo-program name to use in the command
-      // line diagnostics.
-      //
-      rule (string rule_id,
-            string program,
-            char symbol = '$',
-            bool strict = true)
-          : rule_id_ (move (rule_id)),
-            program_ (move (program)),
-            symbol_ (symbol),
-            strict_ (strict) {}
-
-      virtual bool
-      match (action, target&, const string&) const override;
-
-      virtual recipe
-      apply (action, target&) const override;
-
-      virtual target_state
-      perform_update (action, const target&) const;
-
-      // Customization hooks.
-      //
-
-      // Perform prerequisite search.
-      //
-      virtual prerequisite_target
-      search (action,
-              const target&,
-              const prerequisite_member&,
-              include_type) const;
-
-      // Perform variable lookup.
-      //
-      virtual string
-      lookup (const location&,
-              action,
-              const target&,
-              const string& name) const;
-
-      // Perform variable substitution. Return nullopt if it should be
-      // ignored.
-      //
-      virtual optional<string>
-      substitute (const location&,
-                  action,
-                  const target&,
-                  const string& name,
-                  bool strict) const;
-
-    protected:
-      const string rule_id_;
-      const string program_;
-      char symbol_;
-      bool strict_;
-    };
-  }
-}
-
-#endif // BUILD2_IN_RULE_HXX