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-rw-r--r--paludis/repositories/cran/spec_tree_pretty_printer.cc134
1 files changed, 134 insertions, 0 deletions
diff --git a/paludis/repositories/cran/spec_tree_pretty_printer.cc b/paludis/repositories/cran/spec_tree_pretty_printer.cc
new file mode 100644
index 000000000..40e43399d
--- /dev/null
+++ b/paludis/repositories/cran/spec_tree_pretty_printer.cc
@@ -0,0 +1,134 @@
+/* vim: set sw=4 sts=4 et foldmethod=syntax : */
+
+/*
+ * Copyright (c) 2010 Ciaran McCreesh
+ *
+ * This file is part of the Paludis package manager. Paludis is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU General
+ * Public License version 2, as published by the Free Software Foundation.
+ *
+ * Paludis is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <paludis/repositories/cran/spec_tree_pretty_printer.hh>
+#include <paludis/util/pimp-impl.hh>
+#include <paludis/util/indirect_iterator-impl.hh>
+#include <paludis/util/stringify.hh>
+#include <paludis/util/options.hh>
+#include <paludis/util/accept_visitor.hh>
+#include <paludis/pretty_printer.hh>
+#include <algorithm>
+#include <ostream>
+#include <sstream>
+
+using namespace paludis;
+using namespace paludis::cranrepository;
+
+namespace paludis
+{
+ template <>
+ struct Imp<SpecTreePrettyPrinter>
+ {
+ std::stringstream s;
+ const PrettyPrinter & printer;
+ const PrettyPrintOptions options;
+ const unsigned indent;
+ const bool multiline;
+ bool need_comma;
+
+ Imp(
+ const PrettyPrinter & p, const PrettyPrintOptions & o) :
+ printer(p),
+ options(o),
+ indent(0),
+ multiline(o[ppo_multiline_allowed]),
+ need_comma(false)
+ {
+ }
+ };
+}
+
+SpecTreePrettyPrinter::SpecTreePrettyPrinter(
+ const PrettyPrinter & p, const PrettyPrintOptions & o) :
+ Pimp<SpecTreePrettyPrinter>(p, o)
+{
+}
+
+SpecTreePrettyPrinter::~SpecTreePrettyPrinter()
+{
+}
+
+void
+SpecTreePrettyPrinter::visit(const DependencySpecTree::NodeType<PackageDepSpec>::Type & node)
+{
+ if (_imp->multiline)
+ _imp->s << _imp->printer.indentify(_imp->indent);
+ else if (_imp->need_comma)
+ _imp->s << ", ";
+ else
+ _imp->need_comma = true;
+
+ _imp->s << _imp->printer.prettify(*node.spec());
+
+ if (_imp->multiline)
+ _imp->s << _imp->printer.newline();
+}
+
+void
+SpecTreePrettyPrinter::visit(const DependencySpecTree::NodeType<AllDepSpec>::Type & node)
+{
+ std::for_each(indirect_iterator(node.begin()), indirect_iterator(node.end()), accept_visitor(*this));
+}
+
+void
+SpecTreePrettyPrinter::visit(const DependencySpecTree::NodeType<AnyDepSpec>::Type & node)
+{
+ std::for_each(indirect_iterator(node.begin()), indirect_iterator(node.end()), accept_visitor(*this));
+}
+
+void
+SpecTreePrettyPrinter::visit(const DependencySpecTree::NodeType<ConditionalDepSpec>::Type & node)
+{
+ std::for_each(indirect_iterator(node.begin()), indirect_iterator(node.end()), accept_visitor(*this));
+}
+
+void
+SpecTreePrettyPrinter::visit(const DependencySpecTree::NodeType<BlockDepSpec>::Type &)
+{
+}
+
+void
+SpecTreePrettyPrinter::visit(const DependencySpecTree::NodeType<DependenciesLabelsDepSpec>::Type &)
+{
+}
+
+void
+SpecTreePrettyPrinter::visit(const DependencySpecTree::NodeType<NamedSetDepSpec>::Type & node)
+{
+ if (_imp->multiline)
+ _imp->s << _imp->printer.indentify(_imp->indent);
+ else if (_imp->need_comma)
+ _imp->s << ", ";
+ else
+ _imp->need_comma = true;
+
+ _imp->s << _imp->printer.prettify(*node.spec());
+
+ if (_imp->multiline)
+ _imp->s << _imp->printer.newline();
+}
+
+std::ostream &
+paludis::cranrepository::operator<< (std::ostream & s, const SpecTreePrettyPrinter & p)
+{
+ s << p._imp->s.str();
+ return s;
+}
+