C++ OTMLNodePtr::setUnique方法代码示例

void OTMLNode::addChild(const OTMLNodePtr& newChild)
{
    // replace is needed when the tag is marked as unique
    if(newChild->hasTag()) {
        for(const OTMLNodePtr& node : m_children) {
            if(node->tag() == newChild->tag() && (node->isUnique() || newChild->isUnique())) {
                newChild->setUnique(true);

                if(node->hasChildren() && newChild->hasChildren()) {
                    OTMLNodePtr tmpNode = node->clone();
                    tmpNode->merge(newChild);
                    newChild->copy(tmpNode);
                }

                replaceChild(node, newChild);

                // remove any other child with the same tag
                auto it = m_children.begin();
                while(it != m_children.end()) {
                    OTMLNodePtr node = (*it);
                    if(node != newChild && node->tag() == newChild->tag()) {
                        it = m_children.erase(it);
                    } else
                        ++it;
                }
                return;
            }
        }
    }

    m_children.push_back(newChild);
}

void Config::mergeNode(const std::string& key, const OTMLNodePtr& node)
{
    OTMLNodePtr clone = node->clone();
    node->setTag(key);
    node->setUnique(true);
    m_confsDoc->addChild(node);
}

bool luavalue_cast(int index, OTMLNodePtr& node)
{
    node = OTMLNode::create();
    node->setUnique(true);
    if(g_lua.isTable(index)) {
        g_lua.pushNil();
        while(g_lua.next(index < 0 ? index-1 : index)) {
            std::string cnodeName;
            if(!g_lua.isNumber(-2))
                cnodeName = g_lua.toString(-2);
            if(g_lua.isTable()) {
                OTMLNodePtr cnode;
                if(luavalue_cast(-1, cnode)) {
                    if(cnodeName.empty())
                        node->setUnique(false);
                    else
                        cnode->setTag(cnodeName);
                    node->addChild(cnode);
                }
            } else {
                std::string value;
                if(g_lua.isBoolean())
                    value = stdext::unsafe_cast<std::string>(g_lua.toBoolean());
                else
                    value = g_lua.toString();
                if(cnodeName.empty())
                    node->writeIn(value);
                else
                    node->writeAt(cnodeName, value);
            }
            g_lua.pop();
        }
        return true;
    }
    return false;
}

void OTMLParser::parseNode(const std::string& data)
{
    std::string tag;
    std::string value;
    std::size_t dotsPos = data.find_first_of(':');
    int nodeLine = currentLine;

    // node that has no tag and may have a value
    if(!data.empty() && data[0] == '-') {
        value = data.substr(1);
        boost::trim(value);
    // node that has tag and possible a value
    } else if(dotsPos != std::string::npos) {
        tag = data.substr(0, dotsPos);
        if(data.size() > dotsPos+1)
            value = data.substr(dotsPos+1);
    // node that has only a tag
    } else {
        tag = data;
    }

    boost::trim(tag);
    boost::trim(value);

    // process multitine values
    if(value == "|" || value == "|-" || value == "|+") {
        // reads next lines until we can a value below the same depth
        std::string multiLineData;
        do {
            size_t lastPos = in.tellg();
            std::string line = getNextLine();
            int depth = getLineDepth(line, true);

            // depth above current depth, add the text to the multiline
            if(depth > currentDepth) {
                multiLineData += line.substr((currentDepth+1)*2);
            // it has contents below the current depth
            } else {
                // if not empty, its a node
                boost::trim(line);
                if(!line.empty()) {
                    // rewind and break
                    in.seekg(lastPos, std::ios::beg);
                    currentLine--;
                    break;
                }
            }
            multiLineData += "\n";
        } while(!in.eof());

        /* determine how to treat new lines at the end
         * | strip all new lines at the end and add just a new one
         * |- strip all new lines at the end
         * |+ keep all the new lines at the end (the new lines until next node)
         */
        if(value == "|" || value == "|-") {
            // remove all new lines at the end
            int lastPos = multiLineData.length();
            while(multiLineData[--lastPos] == '\n')
                multiLineData.erase(lastPos, 1);

            if(value == "|")
                multiLineData.append("\n");
        } // else it's |+

        value = multiLineData;
    }

    // create the node
    OTMLNodePtr node = OTMLNode::create(tag);

    node->setUnique(dotsPos != std::string::npos);
    node->setTag(tag);
    node->setSource(doc->source() + ":" + Fw::unsafeCast<std::string>(nodeLine));

    // ~ is considered the null value
    if(value == "~")
        node->setNull(true);
    else
        node->setValue(value);

    currentParent->addChild(node);
    previousNode = node;
}