| /* |
| * 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. |
| */ |
| |
| #include "ResourceParser.h" |
| #include "ResourceTable.h" |
| #include "ResourceUtils.h" |
| #include "ResourceValues.h" |
| #include "util/Util.h" |
| #include "ValueVisitor.h" |
| #include "XmlPullParser.h" |
| |
| #include <sstream> |
| |
| namespace aapt { |
| |
| constexpr const char16_t* sXliffNamespaceUri = u"urn:oasis:names:tc:xliff:document:1.2"; |
| |
| static Maybe<StringPiece16> findAttribute(XmlPullParser* parser, const StringPiece16& name) { |
| auto iter = parser->findAttribute(u"", name); |
| if (iter != parser->endAttributes()) { |
| return StringPiece16(util::trimWhitespace(iter->value)); |
| } |
| return {}; |
| } |
| |
| static Maybe<StringPiece16> findNonEmptyAttribute(XmlPullParser* parser, |
| const StringPiece16& name) { |
| auto iter = parser->findAttribute(u"", name); |
| if (iter != parser->endAttributes()) { |
| StringPiece16 trimmed = util::trimWhitespace(iter->value); |
| if (!trimmed.empty()) { |
| return trimmed; |
| } |
| } |
| return {}; |
| } |
| |
| ResourceParser::ResourceParser(IDiagnostics* diag, ResourceTable* table, const Source& source, |
| const ConfigDescription& config) : |
| mDiag(diag), mTable(table), mSource(source), mConfig(config) { |
| } |
| |
| /** |
| * Build a string from XML that converts nested elements into Span objects. |
| */ |
| bool ResourceParser::flattenXmlSubtree(XmlPullParser* parser, std::u16string* outRawString, |
| StyleString* outStyleString) { |
| std::vector<Span> spanStack; |
| |
| outRawString->clear(); |
| outStyleString->spans.clear(); |
| util::StringBuilder builder; |
| size_t depth = 1; |
| while (XmlPullParser::isGoodEvent(parser->next())) { |
| const XmlPullParser::Event event = parser->getEvent(); |
| if (event == XmlPullParser::Event::kEndElement) { |
| if (!parser->getElementNamespace().empty()) { |
| // We already warned and skipped the start element, so just skip here too |
| continue; |
| } |
| |
| depth--; |
| if (depth == 0) { |
| break; |
| } |
| |
| spanStack.back().lastChar = builder.str().size(); |
| outStyleString->spans.push_back(spanStack.back()); |
| spanStack.pop_back(); |
| |
| } else if (event == XmlPullParser::Event::kText) { |
| // TODO(adamlesinski): Verify format strings. |
| outRawString->append(parser->getText()); |
| builder.append(parser->getText()); |
| |
| } else if (event == XmlPullParser::Event::kStartElement) { |
| if (!parser->getElementNamespace().empty()) { |
| if (parser->getElementNamespace() != sXliffNamespaceUri) { |
| // Only warn if this isn't an xliff namespace. |
| mDiag->warn(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "skipping element '" |
| << parser->getElementName() |
| << "' with unknown namespace '" |
| << parser->getElementNamespace() |
| << "'"); |
| } |
| continue; |
| } |
| depth++; |
| |
| // Build a span object out of the nested element. |
| std::u16string spanName = parser->getElementName(); |
| const auto endAttrIter = parser->endAttributes(); |
| for (auto attrIter = parser->beginAttributes(); attrIter != endAttrIter; ++attrIter) { |
| spanName += u";"; |
| spanName += attrIter->name; |
| spanName += u"="; |
| spanName += attrIter->value; |
| } |
| |
| if (builder.str().size() > std::numeric_limits<uint32_t>::max()) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "style string '" << builder.str() << "' is too long"); |
| return false; |
| } |
| spanStack.push_back(Span{ spanName, static_cast<uint32_t>(builder.str().size()) }); |
| |
| } else if (event == XmlPullParser::Event::kComment) { |
| // Skip |
| } else { |
| assert(false); |
| } |
| } |
| assert(spanStack.empty() && "spans haven't been fully processed"); |
| |
| outStyleString->str = builder.str(); |
| return true; |
| } |
| |
| bool ResourceParser::parse(XmlPullParser* parser) { |
| bool error = false; |
| const size_t depth = parser->getDepth(); |
| while (XmlPullParser::nextChildNode(parser, depth)) { |
| if (parser->getEvent() != XmlPullParser::Event::kStartElement) { |
| // Skip comments and text. |
| continue; |
| } |
| |
| if (!parser->getElementNamespace().empty() || parser->getElementName() != u"resources") { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "root element must be <resources>"); |
| return false; |
| } |
| |
| error |= !parseResources(parser); |
| break; |
| }; |
| |
| if (parser->getEvent() == XmlPullParser::Event::kBadDocument) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "xml parser error: " << parser->getLastError()); |
| return false; |
| } |
| return !error; |
| } |
| |
| bool ResourceParser::parseResources(XmlPullParser* parser) { |
| bool error = false; |
| std::u16string comment; |
| const size_t depth = parser->getDepth(); |
| while (XmlPullParser::nextChildNode(parser, depth)) { |
| const XmlPullParser::Event event = parser->getEvent(); |
| if (event == XmlPullParser::Event::kComment) { |
| comment = parser->getComment(); |
| continue; |
| } |
| |
| if (event == XmlPullParser::Event::kText) { |
| if (!util::trimWhitespace(parser->getText()).empty()) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "plain text not allowed here"); |
| error = true; |
| } |
| continue; |
| } |
| |
| assert(event == XmlPullParser::Event::kStartElement); |
| |
| if (!parser->getElementNamespace().empty()) { |
| // Skip unknown namespace. |
| continue; |
| } |
| |
| std::u16string elementName = parser->getElementName(); |
| if (elementName == u"skip" || elementName == u"eat-comment") { |
| comment = u""; |
| continue; |
| } |
| |
| Maybe<StringPiece16> maybeName = findNonEmptyAttribute(parser, u"name"); |
| if (!maybeName) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "<" << elementName << "> tag must have a 'name' attribute"); |
| error = true; |
| continue; |
| } |
| |
| // Copy because our iterator will go out of scope when |
| // we parse more XML. |
| std::u16string name = maybeName.value().toString(); |
| |
| if (elementName == u"item") { |
| // Items simply have their type encoded in the type attribute. |
| if (Maybe<StringPiece16> maybeType = findNonEmptyAttribute(parser, u"type")) { |
| elementName = maybeType.value().toString(); |
| } else { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "<item> must have a 'type' attribute"); |
| error = true; |
| continue; |
| } |
| } |
| |
| if (elementName == u"id") { |
| error |= !mTable->addResource(ResourceNameRef{ {}, ResourceType::kId, name }, |
| {}, mSource.withLine(parser->getLineNumber()), |
| util::make_unique<Id>(), mDiag); |
| |
| } else if (elementName == u"string") { |
| error |= !parseString(parser, ResourceNameRef{ {}, ResourceType::kString, name }); |
| } else if (elementName == u"color") { |
| error |= !parseColor(parser, ResourceNameRef{ {}, ResourceType::kColor, name }); |
| } else if (elementName == u"drawable") { |
| error |= !parseColor(parser, ResourceNameRef{ {}, ResourceType::kDrawable, name }); |
| } else if (elementName == u"bool") { |
| error |= !parsePrimitive(parser, ResourceNameRef{ {}, ResourceType::kBool, name }); |
| } else if (elementName == u"integer") { |
| error |= !parsePrimitive(parser, ResourceNameRef{ {}, ResourceType::kInteger, name }); |
| } else if (elementName == u"dimen") { |
| error |= !parsePrimitive(parser, ResourceNameRef{ {}, ResourceType::kDimen, name }); |
| } else if (elementName == u"style") { |
| error |= !parseStyle(parser, ResourceNameRef{ {}, ResourceType::kStyle, name }); |
| } else if (elementName == u"plurals") { |
| error |= !parsePlural(parser, ResourceNameRef{ {}, ResourceType::kPlurals, name }); |
| } else if (elementName == u"array") { |
| error |= !parseArray(parser, ResourceNameRef{ {}, ResourceType::kArray, name }, |
| android::ResTable_map::TYPE_ANY); |
| } else if (elementName == u"string-array") { |
| error |= !parseArray(parser, ResourceNameRef{ {}, ResourceType::kArray, name }, |
| android::ResTable_map::TYPE_STRING); |
| } else if (elementName == u"integer-array") { |
| error |= !parseArray(parser, ResourceNameRef{ {}, ResourceType::kArray, name }, |
| android::ResTable_map::TYPE_INTEGER); |
| } else if (elementName == u"public") { |
| error |= !parsePublic(parser, name); |
| } else if (elementName == u"declare-styleable") { |
| error |= !parseDeclareStyleable(parser, |
| ResourceNameRef{ {}, ResourceType::kStyleable, name }); |
| } else if (elementName == u"attr") { |
| error |= !parseAttr(parser, ResourceNameRef{ {}, ResourceType::kAttr, name }); |
| } else { |
| mDiag->warn(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "unknown resource type '" << elementName << "'"); |
| } |
| } |
| return !error; |
| } |
| |
| enum { |
| kAllowRawString = true, |
| kNoRawString = false |
| }; |
| |
| /** |
| * Reads the entire XML subtree and attempts to parse it as some Item, |
| * with typeMask denoting which items it can be. If allowRawValue is |
| * true, a RawString is returned if the XML couldn't be parsed as |
| * an Item. If allowRawValue is false, nullptr is returned in this |
| * case. |
| */ |
| std::unique_ptr<Item> ResourceParser::parseXml(XmlPullParser* parser, uint32_t typeMask, |
| bool allowRawValue) { |
| const size_t beginXmlLine = parser->getLineNumber(); |
| |
| std::u16string rawValue; |
| StyleString styleString; |
| if (!flattenXmlSubtree(parser, &rawValue, &styleString)) { |
| return {}; |
| } |
| |
| if (!styleString.spans.empty()) { |
| // This can only be a StyledString. |
| return util::make_unique<StyledString>( |
| mTable->stringPool.makeRef(styleString, StringPool::Context{ 1, mConfig })); |
| } |
| |
| auto onCreateReference = [&](const ResourceName& name) { |
| // name.package can be empty here, as it will assume the package name of the table. |
| mTable->addResource(name, {}, mSource.withLine(beginXmlLine), util::make_unique<Id>(), |
| mDiag); |
| }; |
| |
| // Process the raw value. |
| std::unique_ptr<Item> processedItem = ResourceUtils::parseItemForAttribute(rawValue, typeMask, |
| onCreateReference); |
| if (processedItem) { |
| // Fix up the reference. |
| if (Reference* ref = valueCast<Reference>(processedItem.get())) { |
| if (Maybe<ResourceName> transformedName = |
| parser->transformPackage(ref->name.value(), u"")) { |
| ref->name = std::move(transformedName); |
| } |
| } |
| return processedItem; |
| } |
| |
| // Try making a regular string. |
| if (typeMask & android::ResTable_map::TYPE_STRING) { |
| // Use the trimmed, escaped string. |
| return util::make_unique<String>( |
| mTable->stringPool.makeRef(styleString.str, StringPool::Context{ 1, mConfig })); |
| } |
| |
| // We can't parse this so return a RawString if we are allowed. |
| if (allowRawValue) { |
| return util::make_unique<RawString>( |
| mTable->stringPool.makeRef(rawValue, StringPool::Context{ 1, mConfig })); |
| } |
| return {}; |
| } |
| |
| bool ResourceParser::parseString(XmlPullParser* parser, const ResourceNameRef& resourceName) { |
| const Source source = mSource.withLine(parser->getLineNumber()); |
| |
| // TODO(adamlesinski): Read "untranslateable" attribute. |
| |
| if (Maybe<StringPiece16> maybeProduct = findAttribute(parser, u"product")) { |
| if (maybeProduct.value() != u"default" && maybeProduct.value() != u"phone") { |
| // TODO(adamlesinski): Actually match product. |
| return true; |
| } |
| } |
| |
| std::unique_ptr<Item> processedItem = parseXml(parser, android::ResTable_map::TYPE_STRING, |
| kNoRawString); |
| if (!processedItem) { |
| mDiag->error(DiagMessage(source) << "not a valid string"); |
| return false; |
| } |
| return mTable->addResource(resourceName, mConfig, source, std::move(processedItem), |
| mDiag); |
| } |
| |
| bool ResourceParser::parseColor(XmlPullParser* parser, const ResourceNameRef& resourceName) { |
| const Source source = mSource.withLine(parser->getLineNumber()); |
| |
| std::unique_ptr<Item> item = parseXml(parser, android::ResTable_map::TYPE_COLOR, kNoRawString); |
| if (!item) { |
| mDiag->error(DiagMessage(source) << "invalid color"); |
| return false; |
| } |
| return mTable->addResource(resourceName, mConfig, source, std::move(item), |
| mDiag); |
| } |
| |
| bool ResourceParser::parsePrimitive(XmlPullParser* parser, const ResourceNameRef& resourceName) { |
| const Source source = mSource.withLine(parser->getLineNumber()); |
| |
| uint32_t typeMask = 0; |
| switch (resourceName.type) { |
| case ResourceType::kInteger: |
| typeMask |= android::ResTable_map::TYPE_INTEGER; |
| break; |
| |
| case ResourceType::kDimen: |
| typeMask |= android::ResTable_map::TYPE_DIMENSION |
| | android::ResTable_map::TYPE_FLOAT |
| | android::ResTable_map::TYPE_FRACTION; |
| break; |
| |
| case ResourceType::kBool: |
| typeMask |= android::ResTable_map::TYPE_BOOLEAN; |
| break; |
| |
| default: |
| assert(false); |
| break; |
| } |
| |
| std::unique_ptr<Item> item = parseXml(parser, typeMask, kNoRawString); |
| if (!item) { |
| mDiag->error(DiagMessage(source) << "invalid " << resourceName.type); |
| return false; |
| } |
| return mTable->addResource(resourceName, mConfig, source, std::move(item), |
| mDiag); |
| } |
| |
| bool ResourceParser::parsePublic(XmlPullParser* parser, const StringPiece16& name) { |
| const Source source = mSource.withLine(parser->getLineNumber()); |
| |
| Maybe<StringPiece16> maybeType = findNonEmptyAttribute(parser, u"type"); |
| if (!maybeType) { |
| mDiag->error(DiagMessage(source) << "<public> must have a 'type' attribute"); |
| return false; |
| } |
| |
| const ResourceType* parsedType = parseResourceType(maybeType.value()); |
| if (!parsedType) { |
| mDiag->error(DiagMessage(source) << "invalid resource type '" << maybeType.value() |
| << "' in <public>"); |
| return false; |
| } |
| |
| ResourceNameRef resourceName { {}, *parsedType, name }; |
| ResourceId resourceId; |
| |
| if (Maybe<StringPiece16> maybeId = findNonEmptyAttribute(parser, u"id")) { |
| android::Res_value val; |
| bool result = android::ResTable::stringToInt(maybeId.value().data(), |
| maybeId.value().size(), &val); |
| resourceId.id = val.data; |
| if (!result || !resourceId.isValid()) { |
| mDiag->error(DiagMessage(source) << "invalid resource ID '" << maybeId.value() |
| << "' in <public>"); |
| return false; |
| } |
| } |
| |
| if (*parsedType == ResourceType::kId) { |
| // An ID marked as public is also the definition of an ID. |
| mTable->addResource(resourceName, {}, source, util::make_unique<Id>(), |
| mDiag); |
| } |
| return mTable->markPublic(resourceName, resourceId, source, mDiag); |
| } |
| |
| static uint32_t parseFormatType(const StringPiece16& piece) { |
| if (piece == u"reference") return android::ResTable_map::TYPE_REFERENCE; |
| else if (piece == u"string") return android::ResTable_map::TYPE_STRING; |
| else if (piece == u"integer") return android::ResTable_map::TYPE_INTEGER; |
| else if (piece == u"boolean") return android::ResTable_map::TYPE_BOOLEAN; |
| else if (piece == u"color") return android::ResTable_map::TYPE_COLOR; |
| else if (piece == u"float") return android::ResTable_map::TYPE_FLOAT; |
| else if (piece == u"dimension") return android::ResTable_map::TYPE_DIMENSION; |
| else if (piece == u"fraction") return android::ResTable_map::TYPE_FRACTION; |
| else if (piece == u"enum") return android::ResTable_map::TYPE_ENUM; |
| else if (piece == u"flags") return android::ResTable_map::TYPE_FLAGS; |
| return 0; |
| } |
| |
| static uint32_t parseFormatAttribute(const StringPiece16& str) { |
| uint32_t mask = 0; |
| for (StringPiece16 part : util::tokenize(str, u'|')) { |
| StringPiece16 trimmedPart = util::trimWhitespace(part); |
| uint32_t type = parseFormatType(trimmedPart); |
| if (type == 0) { |
| return 0; |
| } |
| mask |= type; |
| } |
| return mask; |
| } |
| |
| bool ResourceParser::parseAttr(XmlPullParser* parser, const ResourceNameRef& resourceName) { |
| const Source source = mSource.withLine(parser->getLineNumber()); |
| ResourceName actualName = resourceName.toResourceName(); |
| std::unique_ptr<Attribute> attr = parseAttrImpl(parser, &actualName, false); |
| if (!attr) { |
| return false; |
| } |
| return mTable->addResource(actualName, mConfig, source, std::move(attr), |
| mDiag); |
| } |
| |
| std::unique_ptr<Attribute> ResourceParser::parseAttrImpl(XmlPullParser* parser, |
| ResourceName* resourceName, |
| bool weak) { |
| uint32_t typeMask = 0; |
| |
| Maybe<StringPiece16> maybeFormat = findAttribute(parser, u"format"); |
| if (maybeFormat) { |
| typeMask = parseFormatAttribute(maybeFormat.value()); |
| if (typeMask == 0) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "invalid attribute format '" << maybeFormat.value() << "'"); |
| return {}; |
| } |
| } |
| |
| // If this is a declaration, the package name may be in the name. Separate these out. |
| // Eg. <attr name="android:text" /> |
| // No format attribute is allowed. |
| if (weak && !maybeFormat) { |
| StringPiece16 package, type, name; |
| ResourceUtils::extractResourceName(resourceName->entry, &package, &type, &name); |
| if (type.empty() && !package.empty()) { |
| resourceName->package = package.toString(); |
| resourceName->entry = name.toString(); |
| } |
| } |
| |
| std::vector<Attribute::Symbol> items; |
| |
| std::u16string comment; |
| bool error = false; |
| const size_t depth = parser->getDepth(); |
| while (XmlPullParser::nextChildNode(parser, depth)) { |
| if (parser->getEvent() != XmlPullParser::Event::kStartElement) { |
| // Skip comments and text. |
| continue; |
| } |
| |
| const std::u16string& elementNamespace = parser->getElementNamespace(); |
| const std::u16string& elementName = parser->getElementName(); |
| if (elementNamespace == u"" && (elementName == u"flag" || elementName == u"enum")) { |
| if (elementName == u"enum") { |
| if (typeMask & android::ResTable_map::TYPE_FLAGS) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "can not define an <enum>; already defined a <flag>"); |
| error = true; |
| continue; |
| } |
| typeMask |= android::ResTable_map::TYPE_ENUM; |
| } else if (elementName == u"flag") { |
| if (typeMask & android::ResTable_map::TYPE_ENUM) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "can not define a <flag>; already defined an <enum>"); |
| error = true; |
| continue; |
| } |
| typeMask |= android::ResTable_map::TYPE_FLAGS; |
| } |
| |
| if (Maybe<Attribute::Symbol> s = parseEnumOrFlagItem(parser, elementName)) { |
| if (mTable->addResource(s.value().symbol.name.value(), mConfig, |
| mSource.withLine(parser->getLineNumber()), |
| util::make_unique<Id>(), |
| mDiag)) { |
| items.push_back(std::move(s.value())); |
| } else { |
| error = true; |
| } |
| } else { |
| error = true; |
| } |
| } else if (elementName == u"skip" || elementName == u"eat-comment") { |
| comment = u""; |
| |
| } else { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << ":" << elementName << ">"); |
| error = true; |
| } |
| } |
| |
| if (error) { |
| return {}; |
| } |
| |
| std::unique_ptr<Attribute> attr = util::make_unique<Attribute>(weak); |
| attr->symbols.swap(items); |
| attr->typeMask = typeMask ? typeMask : uint32_t(android::ResTable_map::TYPE_ANY); |
| return attr; |
| } |
| |
| Maybe<Attribute::Symbol> ResourceParser::parseEnumOrFlagItem(XmlPullParser* parser, |
| const StringPiece16& tag) { |
| const Source source = mSource.withLine(parser->getLineNumber()); |
| |
| Maybe<StringPiece16> maybeName = findNonEmptyAttribute(parser, u"name"); |
| if (!maybeName) { |
| mDiag->error(DiagMessage(source) << "no attribute 'name' found for tag <" << tag << ">"); |
| return {}; |
| } |
| |
| Maybe<StringPiece16> maybeValue = findNonEmptyAttribute(parser, u"value"); |
| if (!maybeValue) { |
| mDiag->error(DiagMessage(source) << "no attribute 'value' found for tag <" << tag << ">"); |
| return {}; |
| } |
| |
| android::Res_value val; |
| if (!android::ResTable::stringToInt(maybeValue.value().data(), |
| maybeValue.value().size(), &val)) { |
| mDiag->error(DiagMessage(source) << "invalid value '" << maybeValue.value() |
| << "' for <" << tag << ">; must be an integer"); |
| return {}; |
| } |
| |
| return Attribute::Symbol{ |
| Reference(ResourceName{ {}, ResourceType::kId, maybeName.value().toString() }), |
| val.data }; |
| } |
| |
| static Maybe<ResourceName> parseXmlAttributeName(StringPiece16 str) { |
| str = util::trimWhitespace(str); |
| const char16_t* const start = str.data(); |
| const char16_t* const end = start + str.size(); |
| const char16_t* p = start; |
| |
| StringPiece16 package; |
| StringPiece16 name; |
| while (p != end) { |
| if (*p == u':') { |
| package = StringPiece16(start, p - start); |
| name = StringPiece16(p + 1, end - (p + 1)); |
| break; |
| } |
| p++; |
| } |
| |
| return ResourceName{ package.toString(), ResourceType::kAttr, |
| name.empty() ? str.toString() : name.toString() }; |
| } |
| |
| |
| bool ResourceParser::parseStyleItem(XmlPullParser* parser, Style* style) { |
| const Source source = mSource.withLine(parser->getLineNumber()); |
| |
| Maybe<StringPiece16> maybeName = findNonEmptyAttribute(parser, u"name"); |
| if (!maybeName) { |
| mDiag->error(DiagMessage(source) << "<item> must have a 'name' attribute"); |
| return false; |
| } |
| |
| Maybe<ResourceName> maybeKey = parseXmlAttributeName(maybeName.value()); |
| if (!maybeKey) { |
| mDiag->error(DiagMessage(source) << "invalid attribute name '" << maybeName.value() << "'"); |
| return false; |
| } |
| |
| if (Maybe<ResourceName> transformedName = parser->transformPackage(maybeKey.value(), u"")) { |
| maybeKey = std::move(transformedName); |
| } |
| |
| std::unique_ptr<Item> value = parseXml(parser, 0, kAllowRawString); |
| if (!value) { |
| mDiag->error(DiagMessage(source) << "could not parse style item"); |
| return false; |
| } |
| |
| style->entries.push_back(Style::Entry{ Reference(maybeKey.value()), std::move(value) }); |
| return true; |
| } |
| |
| bool ResourceParser::parseStyle(XmlPullParser* parser, const ResourceNameRef& resourceName) { |
| const Source source = mSource.withLine(parser->getLineNumber()); |
| std::unique_ptr<Style> style = util::make_unique<Style>(); |
| |
| Maybe<StringPiece16> maybeParent = findAttribute(parser, u"parent"); |
| if (maybeParent) { |
| // If the parent is empty, we don't have a parent, but we also don't infer either. |
| if (!maybeParent.value().empty()) { |
| std::string errStr; |
| style->parent = ResourceUtils::parseStyleParentReference(maybeParent.value(), &errStr); |
| if (!style->parent) { |
| mDiag->error(DiagMessage(source) << errStr); |
| return false; |
| } |
| |
| if (Maybe<ResourceName> transformedName = |
| parser->transformPackage(style->parent.value().name.value(), u"")) { |
| style->parent.value().name = std::move(transformedName); |
| } |
| } |
| |
| } else { |
| // No parent was specified, so try inferring it from the style name. |
| std::u16string styleName = resourceName.entry.toString(); |
| size_t pos = styleName.find_last_of(u'.'); |
| if (pos != std::string::npos) { |
| style->parentInferred = true; |
| style->parent = Reference(ResourceName{ |
| {}, ResourceType::kStyle, styleName.substr(0, pos) }); |
| } |
| } |
| |
| bool error = false; |
| std::u16string comment; |
| const size_t depth = parser->getDepth(); |
| while (XmlPullParser::nextChildNode(parser, depth)) { |
| if (parser->getEvent() != XmlPullParser::Event::kStartElement) { |
| // Skip text and comments. |
| continue; |
| } |
| |
| const std::u16string& elementNamespace = parser->getElementNamespace(); |
| const std::u16string& elementName = parser->getElementName(); |
| if (elementNamespace == u"" && elementName == u"item") { |
| error |= !parseStyleItem(parser, style.get()); |
| |
| } else if (elementNamespace.empty() && |
| (elementName == u"skip" || elementName == u"eat-comment")) { |
| comment = u""; |
| |
| } else { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << ":" << elementName << ">"); |
| error = true; |
| } |
| } |
| |
| if (error) { |
| return false; |
| } |
| return mTable->addResource(resourceName, mConfig, source, std::move(style), |
| mDiag); |
| } |
| |
| bool ResourceParser::parseArray(XmlPullParser* parser, const ResourceNameRef& resourceName, |
| uint32_t typeMask) { |
| const Source source = mSource.withLine(parser->getLineNumber()); |
| std::unique_ptr<Array> array = util::make_unique<Array>(); |
| |
| std::u16string comment; |
| bool error = false; |
| const size_t depth = parser->getDepth(); |
| while (XmlPullParser::nextChildNode(parser, depth)) { |
| if (parser->getEvent() != XmlPullParser::Event::kStartElement) { |
| // Skip text and comments. |
| continue; |
| } |
| |
| const Source itemSource = mSource.withLine(parser->getLineNumber()); |
| const std::u16string& elementNamespace = parser->getElementNamespace(); |
| const std::u16string& elementName = parser->getElementName(); |
| if (elementNamespace.empty() && elementName == u"item") { |
| std::unique_ptr<Item> item = parseXml(parser, typeMask, kNoRawString); |
| if (!item) { |
| mDiag->error(DiagMessage(itemSource) << "could not parse array item"); |
| error = true; |
| continue; |
| } |
| array->items.emplace_back(std::move(item)); |
| |
| } else if (elementNamespace.empty() && |
| (elementName == u"skip" || elementName == u"eat-comment")) { |
| comment = u""; |
| |
| } else { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "unknown tag <" << elementNamespace << ":" << elementName << ">"); |
| error = true; |
| } |
| } |
| |
| if (error) { |
| return false; |
| } |
| return mTable->addResource(resourceName, mConfig, source, std::move(array), |
| mDiag); |
| } |
| |
| bool ResourceParser::parsePlural(XmlPullParser* parser, const ResourceNameRef& resourceName) { |
| const Source source = mSource.withLine(parser->getLineNumber()); |
| std::unique_ptr<Plural> plural = util::make_unique<Plural>(); |
| |
| std::u16string comment; |
| bool error = false; |
| const size_t depth = parser->getDepth(); |
| while (XmlPullParser::nextChildNode(parser, depth)) { |
| if (parser->getEvent() != XmlPullParser::Event::kStartElement) { |
| // Skip text and comments. |
| continue; |
| } |
| |
| const std::u16string& elementNamespace = parser->getElementNamespace(); |
| const std::u16string& elementName = parser->getElementName(); |
| if (elementNamespace.empty() && elementName == u"item") { |
| const auto endAttrIter = parser->endAttributes(); |
| auto attrIter = parser->findAttribute(u"", u"quantity"); |
| if (attrIter == endAttrIter || attrIter->value.empty()) { |
| mDiag->error(DiagMessage(source) << "<item> in <plurals> requires attribute " |
| << "'quantity'"); |
| error = true; |
| continue; |
| } |
| |
| StringPiece16 trimmedQuantity = util::trimWhitespace(attrIter->value); |
| size_t index = 0; |
| if (trimmedQuantity == u"zero") { |
| index = Plural::Zero; |
| } else if (trimmedQuantity == u"one") { |
| index = Plural::One; |
| } else if (trimmedQuantity == u"two") { |
| index = Plural::Two; |
| } else if (trimmedQuantity == u"few") { |
| index = Plural::Few; |
| } else if (trimmedQuantity == u"many") { |
| index = Plural::Many; |
| } else if (trimmedQuantity == u"other") { |
| index = Plural::Other; |
| } else { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "<item> in <plural> has invalid value '" << trimmedQuantity |
| << "' for attribute 'quantity'"); |
| error = true; |
| continue; |
| } |
| |
| if (plural->values[index]) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "duplicate quantity '" << trimmedQuantity << "'"); |
| error = true; |
| continue; |
| } |
| |
| if (!(plural->values[index] = parseXml(parser, android::ResTable_map::TYPE_STRING, |
| kNoRawString))) { |
| error = true; |
| } |
| } else if (elementNamespace.empty() && |
| (elementName == u"skip" || elementName == u"eat-comment")) { |
| comment = u""; |
| } else { |
| mDiag->error(DiagMessage(source) << "unknown tag <" << elementNamespace << ":" |
| << elementName << ">"); |
| error = true; |
| } |
| } |
| |
| if (error) { |
| return false; |
| } |
| return mTable->addResource(resourceName, mConfig, source, std::move(plural), mDiag); |
| } |
| |
| bool ResourceParser::parseDeclareStyleable(XmlPullParser* parser, |
| const ResourceNameRef& resourceName) { |
| const Source source = mSource.withLine(parser->getLineNumber()); |
| std::unique_ptr<Styleable> styleable = util::make_unique<Styleable>(); |
| |
| std::u16string comment; |
| bool error = false; |
| const size_t depth = parser->getDepth(); |
| while (XmlPullParser::nextChildNode(parser, depth)) { |
| if (parser->getEvent() != XmlPullParser::Event::kStartElement) { |
| // Ignore text and comments. |
| continue; |
| } |
| |
| const std::u16string& elementNamespace = parser->getElementNamespace(); |
| const std::u16string& elementName = parser->getElementName(); |
| if (elementNamespace.empty() && elementName == u"attr") { |
| const auto endAttrIter = parser->endAttributes(); |
| auto attrIter = parser->findAttribute(u"", u"name"); |
| if (attrIter == endAttrIter || attrIter->value.empty()) { |
| mDiag->error(DiagMessage(source) << "<attr> tag must have a 'name' attribute"); |
| error = true; |
| continue; |
| } |
| |
| // Copy because our iterator will be invalidated. |
| ResourceName attrResourceName = { {}, ResourceType::kAttr, attrIter->value }; |
| |
| std::unique_ptr<Attribute> attr = parseAttrImpl(parser, &attrResourceName, true); |
| if (!attr) { |
| error = true; |
| continue; |
| } |
| |
| styleable->entries.emplace_back(attrResourceName); |
| |
| // Add the attribute to the resource table. Since it is weakly defined, |
| // it won't collide. |
| error |= !mTable->addResource(attrResourceName, mConfig, |
| mSource.withLine(parser->getLineNumber()), |
| std::move(attr), mDiag); |
| |
| } else if (elementNamespace.empty() && |
| (elementName == u"skip" || elementName == u"eat-comment")) { |
| comment = u""; |
| |
| } else { |
| mDiag->error(DiagMessage(source) << "unknown tag <" << elementNamespace << ":" |
| << elementName << ">"); |
| error = true; |
| } |
| } |
| |
| if (error) { |
| return false; |
| } |
| return mTable->addResource(resourceName, mConfig, source, std::move(styleable), mDiag); |
| } |
| |
| } // namespace aapt |