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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef AAPT_XML_XMLUTIL_H
#define AAPT_XML_XMLUTIL_H
#include <string>
#include "ResourceValues.h"
#include "util/Maybe.h"
namespace aapt {
namespace xml {
constexpr const char* kSchemaAuto = "http://schemas.android.com/apk/res-auto";
constexpr const char* kSchemaPublicPrefix = "http://schemas.android.com/apk/res/";
constexpr const char* kSchemaPrivatePrefix = "http://schemas.android.com/apk/prv/res/";
constexpr const char* kSchemaAndroid = "http://schemas.android.com/apk/res/android";
constexpr const char* kSchemaTools = "http://schemas.android.com/tools";
constexpr const char* kSchemaAapt = "http://schemas.android.com/aapt";
// Result of extracting a package name from a namespace URI declaration.
struct ExtractedPackage {
// The name of the package. This can be the empty string, which means that the package
// should be assumed to be the package being compiled.
std::string package;
// True if the package's private namespace was declared. This means that private resources
// are made visible.
bool private_namespace;
friend inline bool operator==(const ExtractedPackage& a, const ExtractedPackage& b) {
return a.package == b.package && a.private_namespace == b.private_namespace;
}
};
// Returns an ExtractedPackage struct if the namespace URI is of the form:
// http://schemas.android.com/apk/res/<package> or
// http://schemas.android.com/apk/prv/res/<package>
//
// Special case: if namespaceUri is http://schemas.android.com/apk/res-auto,
// returns an empty package name.
Maybe<ExtractedPackage> ExtractPackageFromNamespace(const std::string& namespace_uri);
// Returns an XML Android namespace for the given package of the form:
// http://schemas.android.com/apk/res/<package>
//
// If privateReference == true, the package will be of the form:
// http://schemas.android.com/apk/prv/res/<package>
std::string BuildPackageNamespace(const android::StringPiece& package,
bool private_reference = false);
// Interface representing a stack of XML namespace declarations. When looking up the package
// for a namespace prefix, the stack is checked from top to bottom.
struct IPackageDeclStack {
virtual ~IPackageDeclStack() = default;
// Returns an ExtractedPackage struct if the alias given corresponds with a package declaration.
virtual Maybe<ExtractedPackage> TransformPackageAlias(
const android::StringPiece& alias, const android::StringPiece& local_package) const = 0;
};
// Helper function for transforming the original Reference inRef to a fully qualified reference
// via the IPackageDeclStack. This will also mark the Reference as private if the namespace of the
// package declaration was private.
void TransformReferenceFromNamespace(IPackageDeclStack* decl_stack,
const android::StringPiece& local_package, Reference* in_ref);
} // namespace xml
} // namespace aapt
#endif /* AAPT_XML_XMLUTIL_H */
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