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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_RESOURCE_PARSER_H
#define AAPT_RESOURCE_PARSER_H
#include "ConfigDescription.h"
#include "Diagnostics.h"
#include "ResourceTable.h"
#include "ResourceValues.h"
#include "StringPool.h"
#include "util/Maybe.h"
#include "util/StringPiece.h"
#include "xml/XmlPullParser.h"
#include <memory>
namespace aapt {
struct ParsedResource;
struct ResourceParserOptions {
/**
* Whether the default setting for this parser is to allow translation.
*/
bool translatable = true;
/**
* Whether positional arguments in formatted strings are treated as errors or warnings.
*/
bool errorOnPositionalArguments = true;
};
/*
* Parses an XML file for resources and adds them to a ResourceTable.
*/
class ResourceParser {
public:
ResourceParser(IDiagnostics* diag, ResourceTable* table, const Source& source,
const ConfigDescription& config, const ResourceParserOptions& options = {});
ResourceParser(const ResourceParser&) = delete; // No copy.
bool parse(xml::XmlPullParser* parser);
private:
/*
* Parses the XML subtree as a StyleString (flattened XML representation for strings
* with formatting). If successful, `outStyleString`
* contains the escaped and whitespace trimmed text, while `outRawString`
* contains the unescaped text. Returns true on success.
*/
bool flattenXmlSubtree(xml::XmlPullParser* parser, std::u16string* outRawString,
StyleString* outStyleString);
/*
* Parses the XML subtree and returns an Item.
* The type of Item that can be parsed is denoted by the `typeMask`.
* If `allowRawValue` is true and the subtree can not be parsed as a regular Item, then a
* RawString is returned. Otherwise this returns false;
*/
std::unique_ptr<Item> parseXml(xml::XmlPullParser* parser, const uint32_t typeMask,
const bool allowRawValue);
bool parseResources(xml::XmlPullParser* parser);
bool parseResource(xml::XmlPullParser* parser, ParsedResource* outResource);
bool parseItem(xml::XmlPullParser* parser, ParsedResource* outResource, uint32_t format);
bool parseString(xml::XmlPullParser* parser, ParsedResource* outResource);
bool parsePublic(xml::XmlPullParser* parser, ParsedResource* outResource);
bool parsePublicGroup(xml::XmlPullParser* parser, ParsedResource* outResource);
bool parseSymbolImpl(xml::XmlPullParser* parser, ParsedResource* outResource);
bool parseSymbol(xml::XmlPullParser* parser, ParsedResource* outResource);
bool parseAddResource(xml::XmlPullParser* parser, ParsedResource* outResource);
bool parseAttr(xml::XmlPullParser* parser, ParsedResource* outResource);
bool parseAttrImpl(xml::XmlPullParser* parser, ParsedResource* outResource, bool weak);
Maybe<Attribute::Symbol> parseEnumOrFlagItem(xml::XmlPullParser* parser,
const StringPiece16& tag);
bool parseStyle(xml::XmlPullParser* parser, ParsedResource* outResource);
bool parseStyleItem(xml::XmlPullParser* parser, Style* style);
bool parseDeclareStyleable(xml::XmlPullParser* parser, ParsedResource* outResource);
bool parseArray(xml::XmlPullParser* parser, ParsedResource* outResource);
bool parseIntegerArray(xml::XmlPullParser* parser, ParsedResource* outResource);
bool parseStringArray(xml::XmlPullParser* parser, ParsedResource* outResource);
bool parseArrayImpl(xml::XmlPullParser* parser, ParsedResource* outResource, uint32_t typeMask);
bool parsePlural(xml::XmlPullParser* parser, ParsedResource* outResource);
IDiagnostics* mDiag;
ResourceTable* mTable;
Source mSource;
ConfigDescription mConfig;
ResourceParserOptions mOptions;
};
} // namespace aapt
#endif // AAPT_RESOURCE_PARSER_H
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