XmlDom.cpp revision d0f492db038c6210c1138865d816bfb134376538
175f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski/* 275f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski * Copyright (C) 2015 The Android Open Source Project 375f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski * 475f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski * Licensed under the Apache License, Version 2.0 (the "License"); 575f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski * you may not use this file except in compliance with the License. 675f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski * You may obtain a copy of the License at 775f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski * 875f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski * http://www.apache.org/licenses/LICENSE-2.0 975f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski * 1075f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski * Unless required by applicable law or agreed to in writing, software 1175f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski * distributed under the License is distributed on an "AS IS" BASIS, 1275f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1375f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski * See the License for the specific language governing permissions and 1475f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski * limitations under the License. 1575f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski */ 1675f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 1775f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski#include "XmlDom.h" 1875f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 19467f171315f9c2037fcd3eb5edcfabc40671bf7bAdam Lesinski#include <expat.h> 20ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 2175f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski#include <memory> 2275f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski#include <stack> 2375f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski#include <string> 2475f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski#include <tuple> 2575f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 26ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski#include "android-base/logging.h" 27ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 28d0f492db038c6210c1138865d816bfb134376538Adam Lesinski#include "ResourceUtils.h" 29ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski#include "XmlPullParser.h" 30ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski#include "util/Util.h" 31ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 32d5083f6f6b9bc76bbe64052bcec639eee752a321Adam Lesinskiusing android::StringPiece; 33d5083f6f6b9bc76bbe64052bcec639eee752a321Adam Lesinskiusing android::StringPiece16; 34d5083f6f6b9bc76bbe64052bcec639eee752a321Adam Lesinski 3575f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinskinamespace aapt { 3675f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinskinamespace xml { 3775f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 3875f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinskiconstexpr char kXmlNamespaceSep = 1; 3975f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 4075f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinskistruct Stack { 41ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski std::unique_ptr<xml::Node> root; 42ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski std::stack<xml::Node*> node_stack; 43ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski std::string pending_comment; 44ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski std::unique_ptr<xml::Text> last_text_node; 45ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski util::StringBuilder pending_text; 4675f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski}; 4775f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 4875f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski/** 4975f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski * Extracts the namespace and name of an expanded element or attribute name. 5075f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski */ 51ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinskistatic void SplitName(const char* name, std::string* out_ns, 52ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski std::string* out_name) { 53ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const char* p = name; 54ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski while (*p != 0 && *p != kXmlNamespaceSep) { 55ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski p++; 56ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 57ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 58ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (*p == 0) { 59ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski out_ns->clear(); 60d5083f6f6b9bc76bbe64052bcec639eee752a321Adam Lesinski out_name->assign(name); 61ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } else { 62d5083f6f6b9bc76bbe64052bcec639eee752a321Adam Lesinski out_ns->assign(name, (p - name)); 63d5083f6f6b9bc76bbe64052bcec639eee752a321Adam Lesinski out_name->assign(p + 1); 64ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 6575f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski} 6675f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 67ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinskistatic void FinishPendingText(Stack* stack) { 68ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski if (stack->last_text_node != nullptr) { 69ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski if (!stack->pending_text.IsEmpty()) { 70ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski stack->last_text_node->text = stack->pending_text.ToString(); 71ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski stack->pending_text = {}; 72ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski stack->node_stack.top()->AppendChild(std::move(stack->last_text_node)); 73ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski } else { 74ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski // Drop an empty text node. 75ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski stack->last_text_node = nullptr; 76ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski } 77ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski } 78ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski} 79ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski 80ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinskistatic void AddToStack(Stack* stack, XML_Parser parser, 81ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski std::unique_ptr<Node> node) { 82ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski node->line_number = XML_GetCurrentLineNumber(parser); 83ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski node->column_number = XML_GetCurrentColumnNumber(parser); 84ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 85ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Node* this_node = node.get(); 86ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (!stack->node_stack.empty()) { 87e343eb145c42d00c4fd3fdde93cd0be55cb5b855Adam Lesinski stack->node_stack.top()->AppendChild(std::move(node)); 88ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } else { 89ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski stack->root = std::move(node); 90ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 91ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 92ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (!NodeCast<Text>(this_node)) { 93ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski stack->node_stack.push(this_node); 94ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 9575f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski} 9675f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 97ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinskistatic void XMLCALL StartNamespaceHandler(void* user_data, const char* prefix, 98ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const char* uri) { 99ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski XML_Parser parser = reinterpret_cast<XML_Parser>(user_data); 100ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Stack* stack = reinterpret_cast<Stack*>(XML_GetUserData(parser)); 101ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski FinishPendingText(stack); 10275f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 103ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski std::unique_ptr<Namespace> ns = util::make_unique<Namespace>(); 104ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (prefix) { 105d5083f6f6b9bc76bbe64052bcec639eee752a321Adam Lesinski ns->namespace_prefix = prefix; 106ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 10775f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 108ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (uri) { 109d5083f6f6b9bc76bbe64052bcec639eee752a321Adam Lesinski ns->namespace_uri = uri; 110ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 11175f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 112ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski AddToStack(stack, parser, std::move(ns)); 11375f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski} 11475f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 115ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinskistatic void XMLCALL EndNamespaceHandler(void* user_data, const char* prefix) { 116ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski XML_Parser parser = reinterpret_cast<XML_Parser>(user_data); 117ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Stack* stack = reinterpret_cast<Stack*>(XML_GetUserData(parser)); 118ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski FinishPendingText(stack); 11975f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 120ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski CHECK(!stack->node_stack.empty()); 121ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski stack->node_stack.pop(); 12275f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski} 12375f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 124ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinskistatic bool less_attribute(const Attribute& lhs, const Attribute& rhs) { 125ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return std::tie(lhs.namespace_uri, lhs.name, lhs.value) < 126ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski std::tie(rhs.namespace_uri, rhs.name, rhs.value); 12775f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski} 12875f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 129ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinskistatic void XMLCALL StartElementHandler(void* user_data, const char* name, 130ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const char** attrs) { 131ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski XML_Parser parser = reinterpret_cast<XML_Parser>(user_data); 132ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Stack* stack = reinterpret_cast<Stack*>(XML_GetUserData(parser)); 133ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski FinishPendingText(stack); 13475f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 135ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski std::unique_ptr<Element> el = util::make_unique<Element>(); 136ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski SplitName(name, &el->namespace_uri, &el->name); 13775f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 138ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski while (*attrs) { 139ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Attribute attribute; 140ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski SplitName(*attrs++, &attribute.namespace_uri, &attribute.name); 141ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski util::StringBuilder builder; 142ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski builder.Append(*attrs++); 143ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski attribute.value = builder.ToString(); 14475f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 145ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski // Insert in sorted order. 146ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski auto iter = std::lower_bound(el->attributes.begin(), el->attributes.end(), 147ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski attribute, less_attribute); 148ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski el->attributes.insert(iter, std::move(attribute)); 149ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 15075f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 151ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski el->comment = std::move(stack->pending_comment); 152ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski AddToStack(stack, parser, std::move(el)); 15375f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski} 15475f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 155ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinskistatic void XMLCALL EndElementHandler(void* user_data, const char* name) { 156ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski XML_Parser parser = reinterpret_cast<XML_Parser>(user_data); 157ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Stack* stack = reinterpret_cast<Stack*>(XML_GetUserData(parser)); 158ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski FinishPendingText(stack); 15975f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 160ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski CHECK(!stack->node_stack.empty()); 161ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski // stack->nodeStack.top()->comment = std::move(stack->pendingComment); 162ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski stack->node_stack.pop(); 16375f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski} 16475f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 165ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinskistatic void XMLCALL CharacterDataHandler(void* user_data, const char* s, int len) { 166ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski XML_Parser parser = reinterpret_cast<XML_Parser>(user_data); 167ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Stack* stack = reinterpret_cast<Stack*>(XML_GetUserData(parser)); 168ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 169ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski const StringPiece str(s, len); 170ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski if (str.empty()) { 171ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return; 172ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 173ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 174ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski // See if we can just append the text to a previous text node. 175ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski if (stack->last_text_node != nullptr) { 176ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski stack->pending_text.Append(str); 177ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski return; 178ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 17975f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 180ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski stack->last_text_node = util::make_unique<Text>(); 181ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski stack->last_text_node->line_number = XML_GetCurrentLineNumber(parser); 182ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski stack->last_text_node->column_number = XML_GetCurrentColumnNumber(parser); 183ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski stack->pending_text.Append(str); 18475f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski} 18575f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 186ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinskistatic void XMLCALL CommentDataHandler(void* user_data, const char* comment) { 187ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski XML_Parser parser = reinterpret_cast<XML_Parser>(user_data); 188ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Stack* stack = reinterpret_cast<Stack*>(XML_GetUserData(parser)); 189ac6edc501b61e14e3b70ccbbd4d8ed112d92b96cAdam Lesinski FinishPendingText(stack); 19075f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 191ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (!stack->pending_comment.empty()) { 192ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski stack->pending_comment += '\n'; 193ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 194ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski stack->pending_comment += comment; 19575f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski} 19675f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 197d0f492db038c6210c1138865d816bfb134376538Adam Lesinskistd::unique_ptr<XmlResource> Inflate(std::istream* in, IDiagnostics* diag, const Source& source) { 198ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Stack stack; 199ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 200ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski XML_Parser parser = XML_ParserCreateNS(nullptr, kXmlNamespaceSep); 201ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski XML_SetUserData(parser, &stack); 202ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski XML_UseParserAsHandlerArg(parser); 203ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski XML_SetElementHandler(parser, StartElementHandler, EndElementHandler); 204d0f492db038c6210c1138865d816bfb134376538Adam Lesinski XML_SetNamespaceDeclHandler(parser, StartNamespaceHandler, EndNamespaceHandler); 205ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski XML_SetCharacterDataHandler(parser, CharacterDataHandler); 206ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski XML_SetCommentHandler(parser, CommentDataHandler); 207ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 208ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski char buffer[1024]; 209ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski while (!in->eof()) { 210ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski in->read(buffer, sizeof(buffer) / sizeof(buffer[0])); 211ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (in->bad() && !in->eof()) { 212ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski stack.root = {}; 213ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski diag->Error(DiagMessage(source) << strerror(errno)); 214ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski break; 21575f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski } 21675f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 217d0f492db038c6210c1138865d816bfb134376538Adam Lesinski if (XML_Parse(parser, buffer, in->gcount(), in->eof()) == XML_STATUS_ERROR) { 218ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski stack.root = {}; 219ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski diag->Error(DiagMessage(source.WithLine(XML_GetCurrentLineNumber(parser))) 220ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski << XML_ErrorString(XML_GetErrorCode(parser))); 221ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski break; 2221ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski } 223ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 224ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 225ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski XML_ParserFree(parser); 226ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (stack.root) { 227d0f492db038c6210c1138865d816bfb134376538Adam Lesinski return util::make_unique<XmlResource>(ResourceFile{{}, {}, source}, std::move(stack.root)); 228ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 229ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return {}; 23075f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski} 23175f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 232d0f492db038c6210c1138865d816bfb134376538Adam Lesinskistatic void CopyAttributes(Element* el, android::ResXMLParser* parser, StringPool* out_pool) { 233ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const size_t attr_count = parser->getAttributeCount(); 234ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (attr_count > 0) { 235ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski el->attributes.reserve(attr_count); 236ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski for (size_t i = 0; i < attr_count; i++) { 237ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Attribute attr; 238ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski size_t len; 239ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const char16_t* str16 = parser->getAttributeNamespace(i, &len); 240ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (str16) { 241ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski attr.namespace_uri = util::Utf16ToUtf8(StringPiece16(str16, len)); 242ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 243ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 244ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski str16 = parser->getAttributeName(i, &len); 245ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (str16) { 246ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski attr.name = util::Utf16ToUtf8(StringPiece16(str16, len)); 247ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 248ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 249ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski str16 = parser->getAttributeStringValue(i, &len); 250ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (str16) { 251ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski attr.value = util::Utf16ToUtf8(StringPiece16(str16, len)); 252ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 253d0f492db038c6210c1138865d816bfb134376538Adam Lesinski 254d0f492db038c6210c1138865d816bfb134376538Adam Lesinski android::Res_value res_value; 255d0f492db038c6210c1138865d816bfb134376538Adam Lesinski if (parser->getAttributeValue(i, &res_value) > 0) { 256d0f492db038c6210c1138865d816bfb134376538Adam Lesinski attr.compiled_value = ResourceUtils::ParseBinaryResValue( 257d0f492db038c6210c1138865d816bfb134376538Adam Lesinski ResourceType::kAnim, {}, parser->getStrings(), res_value, out_pool); 258d0f492db038c6210c1138865d816bfb134376538Adam Lesinski } 259d0f492db038c6210c1138865d816bfb134376538Adam Lesinski 260ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski el->attributes.push_back(std::move(attr)); 26175f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski } 262ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 26375f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski} 26475f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 265d0f492db038c6210c1138865d816bfb134376538Adam Lesinskistd::unique_ptr<XmlResource> Inflate(const void* data, size_t data_len, IDiagnostics* diag, 266d0f492db038c6210c1138865d816bfb134376538Adam Lesinski const Source& source) { 267ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski // We import the android namespace because on Windows NO_ERROR is a macro, not 268ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski // an enum, which 269ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski // causes errors when qualifying it with android:: 270ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski using namespace android; 271803c7c807969bea1f1c50f348832f5b60ad05d8eAdam Lesinski 272d0f492db038c6210c1138865d816bfb134376538Adam Lesinski StringPool string_pool; 273ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski std::unique_ptr<Node> root; 274ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski std::stack<Node*> node_stack; 27575f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 276ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski ResXMLTree tree; 277ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (tree.setTo(data, data_len) != NO_ERROR) { 278ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return {}; 279ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 280ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 281ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski ResXMLParser::event_code_t code; 282ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski while ((code = tree.next()) != ResXMLParser::BAD_DOCUMENT && 283ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski code != ResXMLParser::END_DOCUMENT) { 284ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski std::unique_ptr<Node> new_node; 285ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski switch (code) { 286ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski case ResXMLParser::START_NAMESPACE: { 287ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski std::unique_ptr<Namespace> node = util::make_unique<Namespace>(); 288ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski size_t len; 289ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const char16_t* str16 = tree.getNamespacePrefix(&len); 290ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (str16) { 291ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski node->namespace_prefix = util::Utf16ToUtf8(StringPiece16(str16, len)); 292ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 293ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 294ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski str16 = tree.getNamespaceUri(&len); 295ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (str16) { 296ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski node->namespace_uri = util::Utf16ToUtf8(StringPiece16(str16, len)); 297ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 298ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski new_node = std::move(node); 299ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski break; 300ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 301ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 302ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski case ResXMLParser::START_TAG: { 303ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski std::unique_ptr<Element> node = util::make_unique<Element>(); 304ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski size_t len; 305ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const char16_t* str16 = tree.getElementNamespace(&len); 306ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (str16) { 307ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski node->namespace_uri = util::Utf16ToUtf8(StringPiece16(str16, len)); 308ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 30975f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 310ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski str16 = tree.getElementName(&len); 311ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (str16) { 312ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski node->name = util::Utf16ToUtf8(StringPiece16(str16, len)); 31375f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski } 31475f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 315d0f492db038c6210c1138865d816bfb134376538Adam Lesinski CopyAttributes(node.get(), &tree, &string_pool); 316ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 317ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski new_node = std::move(node); 318ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski break; 319ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 320ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 321ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski case ResXMLParser::TEXT: { 322ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski std::unique_ptr<Text> node = util::make_unique<Text>(); 323ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski size_t len; 324ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const char16_t* str16 = tree.getText(&len); 325ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (str16) { 326ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski node->text = util::Utf16ToUtf8(StringPiece16(str16, len)); 32775f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski } 328ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski new_node = std::move(node); 329ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski break; 330ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 331ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 332ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski case ResXMLParser::END_NAMESPACE: 333ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski case ResXMLParser::END_TAG: 334ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski CHECK(!node_stack.empty()); 335ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski node_stack.pop(); 336ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski break; 337ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 338ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski default: 339ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski LOG(FATAL) << "unhandled XML chunk type"; 340ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski break; 34175f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski } 34275f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 343ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (new_node) { 344ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski new_node->line_number = tree.getLineNumber(); 345ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 346ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Node* this_node = new_node.get(); 347ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (!root) { 348ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski CHECK(node_stack.empty()) << "node stack should be empty"; 349ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski root = std::move(new_node); 350ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } else { 351ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski CHECK(!node_stack.empty()) << "node stack should not be empty"; 352e343eb145c42d00c4fd3fdde93cd0be55cb5b855Adam Lesinski node_stack.top()->AppendChild(std::move(new_node)); 353ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 354ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 355ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (!NodeCast<Text>(this_node)) { 356ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski node_stack.push(this_node); 357ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 3585eeaaddffd23d8d85aeb321e3ceea626e42cf9deAdam Lesinski } 359ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 360d0f492db038c6210c1138865d816bfb134376538Adam Lesinski return util::make_unique<XmlResource>(ResourceFile{}, std::move(root), std::move(string_pool)); 3615eeaaddffd23d8d85aeb321e3ceea626e42cf9deAdam Lesinski} 3625eeaaddffd23d8d85aeb321e3ceea626e42cf9deAdam Lesinski 363ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinskistd::unique_ptr<Node> Namespace::Clone() { 364ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski auto ns = util::make_unique<Namespace>(); 365ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski ns->comment = comment; 366ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski ns->line_number = line_number; 367ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski ns->column_number = column_number; 368ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski ns->namespace_prefix = namespace_prefix; 369ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski ns->namespace_uri = namespace_uri; 370ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 371ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski ns->children.reserve(children.size()); 372ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski for (const std::unique_ptr<xml::Node>& child : children) { 373e343eb145c42d00c4fd3fdde93cd0be55cb5b855Adam Lesinski ns->AppendChild(child->Clone()); 374ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 375ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return std::move(ns); 376467f171315f9c2037fcd3eb5edcfabc40671bf7bAdam Lesinski} 377467f171315f9c2037fcd3eb5edcfabc40671bf7bAdam Lesinski 378ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam LesinskiElement* FindRootElement(XmlResource* doc) { 379ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return FindRootElement(doc->root.get()); 380ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski} 381ca5638fd85098c3d0a699492751043545f75553aAdam Lesinski 382ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam LesinskiElement* FindRootElement(Node* node) { 383ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (!node) { 384ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return nullptr; 385ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 386ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 387ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Element* el = nullptr; 388ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski while ((el = NodeCast<Element>(node)) == nullptr) { 389ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (node->children.empty()) { 390ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return nullptr; 391ca5638fd85098c3d0a699492751043545f75553aAdam Lesinski } 392ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski // We are looking for the first element, and namespaces can only have one 393ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski // child. 394ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski node = node->children.front().get(); 395ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 396ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return el; 397ca5638fd85098c3d0a699492751043545f75553aAdam Lesinski} 398ca5638fd85098c3d0a699492751043545f75553aAdam Lesinski 399e343eb145c42d00c4fd3fdde93cd0be55cb5b855Adam Lesinskivoid Node::AppendChild(std::unique_ptr<Node> child) { 400ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski child->parent = this; 401ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski children.push_back(std::move(child)); 40275f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski} 40375f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 404e343eb145c42d00c4fd3fdde93cd0be55cb5b855Adam Lesinskivoid Node::InsertChild(size_t index, std::unique_ptr<Node> child) { 405e343eb145c42d00c4fd3fdde93cd0be55cb5b855Adam Lesinski child->parent = this; 406e343eb145c42d00c4fd3fdde93cd0be55cb5b855Adam Lesinski children.insert(children.begin() + index, std::move(child)); 407e343eb145c42d00c4fd3fdde93cd0be55cb5b855Adam Lesinski} 408e343eb145c42d00c4fd3fdde93cd0be55cb5b855Adam Lesinski 409ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam LesinskiAttribute* Element::FindAttribute(const StringPiece& ns, 410ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const StringPiece& name) { 411ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski for (auto& attr : attributes) { 412ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (ns == attr.namespace_uri && name == attr.name) { 413ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return &attr; 41475f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski } 415ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 416ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return nullptr; 41775f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski} 41875f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 419ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam LesinskiElement* Element::FindChild(const StringPiece& ns, const StringPiece& name) { 420ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return FindChildWithAttribute(ns, name, {}, {}, {}); 42175f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski} 42275f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 423ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam LesinskiElement* Element::FindChildWithAttribute(const StringPiece& ns, 424ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const StringPiece& name, 425ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const StringPiece& attr_ns, 426ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const StringPiece& attr_name, 427ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const StringPiece& attr_value) { 428ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski for (auto& child_node : children) { 429ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Node* child = child_node.get(); 430ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski while (NodeCast<Namespace>(child)) { 431ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (child->children.empty()) { 432ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski break; 433ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 434ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski child = child->children[0].get(); 43575f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski } 43675f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 437ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (Element* el = NodeCast<Element>(child)) { 438ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (ns == el->namespace_uri && name == el->name) { 439ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (attr_ns.empty() && attr_name.empty()) { 440ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return el; 44175f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski } 44275f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 443ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Attribute* attr = el->FindAttribute(attr_ns, attr_name); 444ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (attr && attr_value == attr->value) { 445ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return el; 44675f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski } 447ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 44875f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski } 449ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 450ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return nullptr; 45175f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski} 45275f3a55cc569a9b61f540a85d9828e91bdca5047Adam Lesinski 453ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinskistd::vector<Element*> Element::GetChildElements() { 454ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski std::vector<Element*> elements; 455ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski for (auto& child_node : children) { 456ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Node* child = child_node.get(); 457ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski while (NodeCast<Namespace>(child)) { 458ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (child->children.empty()) { 459ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski break; 460ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 461ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski child = child->children[0].get(); 4625eeaaddffd23d8d85aeb321e3ceea626e42cf9deAdam Lesinski } 4635eeaaddffd23d8d85aeb321e3ceea626e42cf9deAdam Lesinski 464ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (Element* el = NodeCast<Element>(child)) { 465ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski elements.push_back(el); 4665eeaaddffd23d8d85aeb321e3ceea626e42cf9deAdam Lesinski } 467ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 468ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return elements; 4695eeaaddffd23d8d85aeb321e3ceea626e42cf9deAdam Lesinski} 4705eeaaddffd23d8d85aeb321e3ceea626e42cf9deAdam Lesinski 471ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinskistd::unique_ptr<Node> Element::Clone() { 472ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski auto el = util::make_unique<Element>(); 473ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski el->comment = comment; 474ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski el->line_number = line_number; 475ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski el->column_number = column_number; 476ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski el->name = name; 477ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski el->namespace_uri = namespace_uri; 478ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 479ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski el->attributes.reserve(attributes.size()); 480ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski for (xml::Attribute& attr : attributes) { 481ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski // Don't copy compiled values or attributes. 482ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski el->attributes.push_back( 483ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski xml::Attribute{attr.namespace_uri, attr.name, attr.value}); 484ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 485ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 486ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski el->children.reserve(children.size()); 487ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski for (const std::unique_ptr<xml::Node>& child : children) { 488e343eb145c42d00c4fd3fdde93cd0be55cb5b855Adam Lesinski el->AppendChild(child->Clone()); 489ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 490ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return std::move(el); 4915eeaaddffd23d8d85aeb321e3ceea626e42cf9deAdam Lesinski} 4925eeaaddffd23d8d85aeb321e3ceea626e42cf9deAdam Lesinski 493ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinskistd::unique_ptr<Node> Text::Clone() { 494ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski auto t = util::make_unique<Text>(); 495ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski t->comment = comment; 496ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski t->line_number = line_number; 497ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski t->column_number = column_number; 498ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski t->text = text; 499ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return std::move(t); 500ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski} 501467f171315f9c2037fcd3eb5edcfabc40671bf7bAdam Lesinski 502ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinskivoid PackageAwareVisitor::Visit(Namespace* ns) { 503ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski bool added = false; 504ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (Maybe<ExtractedPackage> maybe_package = 505ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski ExtractPackageFromNamespace(ns->namespace_uri)) { 506ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski ExtractedPackage& package = maybe_package.value(); 507ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski package_decls_.push_back( 508ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski PackageDecl{ns->namespace_prefix, std::move(package)}); 509ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski added = true; 510ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 511ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 512ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski Visitor::Visit(ns); 513ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 514ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (added) { 515ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski package_decls_.pop_back(); 516ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 517467f171315f9c2037fcd3eb5edcfabc40671bf7bAdam Lesinski} 518467f171315f9c2037fcd3eb5edcfabc40671bf7bAdam Lesinski 519ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam LesinskiMaybe<ExtractedPackage> PackageAwareVisitor::TransformPackageAlias( 520ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const StringPiece& alias, const StringPiece& local_package) const { 521ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (alias.empty()) { 522d5083f6f6b9bc76bbe64052bcec639eee752a321Adam Lesinski return ExtractedPackage{local_package.to_string(), false /* private */}; 523ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 524ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 525ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const auto rend = package_decls_.rend(); 526ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski for (auto iter = package_decls_.rbegin(); iter != rend; ++iter) { 527ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (alias == iter->prefix) { 528ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (iter->package.package.empty()) { 529d5083f6f6b9bc76bbe64052bcec639eee752a321Adam Lesinski return ExtractedPackage{local_package.to_string(), iter->package.private_namespace}; 530ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 531ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return iter->package; 532ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 533ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski } 534ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski return {}; 535467f171315f9c2037fcd3eb5edcfabc40671bf7bAdam Lesinski} 536467f171315f9c2037fcd3eb5edcfabc40671bf7bAdam Lesinski 537ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski} // namespace xml 538ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski} // namespace aapt 539