fix: update CmdHelper in Unvirt but not finished
This commit is contained in:
parent
88ce33c358
commit
0db8007fcb
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@ -169,6 +169,10 @@ namespace Unvirt::CmdHelper {
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#pragma region Arguments Map
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ArgumentsMap::ArgumentsMap() : m_Data() {}
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ArgumentsMap::~ArgumentsMap() {}
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#pragma endregion
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#pragma region Help Document
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@ -229,160 +233,288 @@ namespace Unvirt::CmdHelper {
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#pragma endregion
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namespace Nodes {
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#pragma region Abstract Node
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AbstractNode::AbstractNode() :
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m_Execution(nullptr), m_Comment(),
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m_Literals(), m_Choices(), m_Args() {}
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AbstractNode::AbstractNode() :
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m_Execution(nullptr), m_Comment(), m_Nodes() {}
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AbstractNode::~AbstractNode() {
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for (auto& ptr : m_Literals) {
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delete ptr;
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}
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for (auto& ptr : m_Choices) {
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delete ptr;
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}
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for (auto& ptr : m_Args) {
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delete ptr;
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}
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}
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AbstractNode::~AbstractNode() {}
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AbstractNode* AbstractNode::Then(AbstractNode* node) {
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// check conflict
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for (auto& pnode : m_Literals) {
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if (pnode->IsConflictWith(node))
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throw std::invalid_argument("conflict node.");
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}
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for (auto& pnode : m_Choices) {
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if (pnode->IsConflictWith(node))
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throw std::invalid_argument("conflict node.");
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}
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for (auto& pnode : m_Args) {
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if (pnode->IsConflictWith(node))
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throw std::invalid_argument("conflict node.");
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AbstractNode& AbstractNode::Executes(FctExecution_t fct, const std::u8string_view& exec_desc) {
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if (m_Execution != nullptr)
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throw std::invalid_argument("you should not assign execution multiuple times.");
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if (fct == nullptr)
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throw std::invalid_argument("the function passed for executing should not be nullptr.");
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m_Execution = fct;
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m_ExecutionDesc = exec_desc;
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return *this;
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}
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// add into list
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switch (node->GetNodeType()) {
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case NodeType::Literal:
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m_Literals.emplace_back(node);
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break;
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case NodeType::Choice:
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m_Choices.emplace_back(node);
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break;
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case NodeType::Argument:
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m_Args.emplace_back(node);
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break;
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default:
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throw std::runtime_error("No such node type.");
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AbstractNode& AbstractNode::Comment(const std::u8string_view& comment) {
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m_Comment = comment;
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return *this;
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}
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return this;
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}
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void AbstractNode::Help(HelpDocument& doc) {
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// Push self symbol to help document stack.
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doc.Push(GetHelpSymbol(), m_Comment);
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AbstractNode* AbstractNode::Executes(ExecutionFct fct, const char* cmt) {
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if (m_Execution != nullptr) throw std::invalid_argument("duplicated executions.");
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if (fct == nullptr) throw std::invalid_argument("no function.");
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m_Execution = fct;
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m_ExecutionDesc = cmt == nullptr ? "" : cmt;
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return this;
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}
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// Check whether this node is terminal.
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// If it is, terminate it once.
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if (m_Execution != nullptr) {
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doc.Terminate(m_ExecutionDesc);
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}
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AbstractNode* AbstractNode::Comment(const char* cmt) {
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if (cmt == nullptr)
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throw std::invalid_argument("no comment.");
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m_Comment = cmt;
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return this;
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}
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// Then process its children nodes.
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for (auto& node : m_Nodes) {
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node->Help(doc);
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}
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void AbstractNode::Help(HelpDocument* doc) {
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// add self
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std::string symbol(GetHelpSymbol());
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doc->Push(symbol, m_Comment);
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// check terminal
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if (m_Execution != nullptr) {
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doc->Terminate(m_ExecutionDesc);
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// Pop self from help document stack
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doc.Pop();
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}
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// iterate children
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for (auto& pnode : m_Literals) {
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pnode->Help(doc);
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}
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for (auto& pnode : m_Choices) {
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pnode->Help(doc);
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}
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for (auto& pnode : m_Args) {
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pnode->Help(doc);
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}
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bool AbstractNode::Consume(CmdSplitter::Result_t& al, ArgumentsMap& am) {
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// if no data can consume, return
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if (al.empty()) return false;
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// pop self
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doc->Pop();
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}
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// backup current value
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std::u8string cur_cmd = al.front();
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// consume self
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if (!BeginConsume(cur_cmd, am)) {
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// fail to consume self. not matched. return
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return false;
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}
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bool AbstractNode::Consume(std::deque<std::string>& arglist, ArgumentsMap* argmap) {
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// if no data can consume, return
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if (arglist.empty()) return false;
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// backup current value
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std::string cur = arglist.front();
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// consume self
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if (!BeginAccept(cur, argmap)) {
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// fail to consume self. not matched. return
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return false;
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}
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// pop front for following code
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arglist.pop_front();
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// pop front for processing child nodes.
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al.pop_front();
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#define CONSUME_DEFER \
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arglist.push_front(cur); \
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EndAccept(argmap);
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al.emplace_front(cur_cmd); \
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EndConsume(am);
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if (arglist.empty()) {
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// this is must be a terminal.
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// check whether we have execution.
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if (m_Execution == nullptr) {
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if (al.empty()) {
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// if no more data for parsing.
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// this is must be a terminal.
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// check whether we have execution.
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if (m_Execution == nullptr) {
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CONSUME_DEFER;
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return false;
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} else {
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m_Execution(am);
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CONSUME_DEFER;
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return true;
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}
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} else {
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// still have data to be parsed. try to match them.
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// iterate node list to find the real terminal
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// however, we need iterate literal and choice first, the iterate argument.
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for (auto& node : m_Nodes) {
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if (node->IsArgument()) continue;
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if (node->Consume(al, am)) {
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CONSUME_DEFER;
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return true;
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}
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}
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for (auto& node : m_Nodes) {
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if (!node->IsArgument()) continue;
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if (node->Consume(al, am)) {
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CONSUME_DEFER;
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return true;
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}
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}
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// if still nothing to match, return false
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CONSUME_DEFER;
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return false;
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} else {
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m_Execution(argmap);
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CONSUME_DEFER;
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return true;
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}
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} else {
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// have following command, try match them
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// iterate literal and argument to check terminal
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for (auto& pnode : m_Literals) {
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if (pnode->Consume(arglist, argmap)) {
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CONSUME_DEFER;
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return true;
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}
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}
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for (auto& pnode : m_Choices) {
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if (pnode->Consume(arglist, argmap)) {
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CONSUME_DEFER;
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return true;
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}
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}
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for (auto& pnode : m_Args) {
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if (pnode->Consume(arglist, argmap)) {
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CONSUME_DEFER;
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return true;
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}
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}
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// if still nothing to match, return false
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CONSUME_DEFER;
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return false;
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}
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#undef CONSUME_DEFER
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}
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}
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#pragma endregion
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#pragma region Literal
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Literal::Literal(const std::u8string_view& words) :
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AbstractNode(), m_Literal(words), m_ConflictSet { m_Literal } {
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if (words.empty())
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throw std::invalid_argument("The word of literal node should not be empty.");
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}
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Literal::~Literal() {}
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bool Literal::IsArgument() { return false; }
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const std::set<std::u8string>& Literal::GetConflictSet() { return m_ConflictSet; }
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std::u8string Literal::GetHelpSymbol() { return m_Literal; }
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bool Literal::BeginConsume(const std::u8string& cur_cmd, ArgumentsMap& am) { return cur_cmd == m_Literal; }
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void Literal::EndConsume(ArgumentsMap& am) {}
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#pragma endregion
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#pragma region Choice
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Choice::Choice(const std::u8string_view& argname, const std::initializer_list<std::u8string>& vocabulary) :
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AbstractNode(),
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m_ChoiceName(argname), m_Vocabulary(vocabulary),
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m_ConflictSet() {
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// check argument
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if (argname.empty())
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throw std::invalid_argument("Choice argument name should not be empty.");
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if (m_Vocabulary.size() < 2u)
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throw std::invalid_argument("Too less vocabulary for choice. At least 2 items.");
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// init conflict set
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m_ConflictSet.insert(m_ChoiceName);
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m_ConflictSet.insert(m_Vocabulary.begin(), m_Vocabulary.end());
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}
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Choice::~Choice() {}
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bool Choice::IsArgument() { return false; }
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const std::set<std::u8string>& Choice::GetConflictSet() { return m_ConflictSet; }
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std::u8string Choice::GetHelpSymbol() {
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return YYCC::StringHelper::Printf(u8"[%s]",
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YYCC::StringHelper::Join(m_Vocabulary, u8" | ").c_str()
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);
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}
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bool Choice::BeginConsume(const std::u8string& cur_cmd, ArgumentsMap& am) {
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for (size_t i = 0; i < m_Vocabulary.size(); ++i) {
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if (cur_cmd == m_Vocabulary[i]) {
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am.Add<AMItems::StringItem>(m_ChoiceName, cur_cmd);
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return true;
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}
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}
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return false;
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}
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void Choice::EndConsume(ArgumentsMap& am) { am.Remove(m_ChoiceName); }
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#pragma endregion
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#pragma region Abstract Argument
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AbstractArgument::AbstractArgument(const std::u8string_view& argname) :
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AbstractNode(),
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m_ArgName(argname == nullptr ? "" : argname),
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m_Accepted(false), m_ParsedData(nullptr) {
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if (argname == nullptr || m_ArgName.empty())
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throw std::invalid_argument("Invalid argument name.");
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}
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AbstractArgument::~AbstractArgument() {}
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NodeType AbstractArgument::GetNodeType() {
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return NodeType::Argument;
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}
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bool AbstractArgument::IsConflictWith(AbstractNode* node) {
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switch (node->GetNodeType()) {
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case NodeType::Literal:
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return false;
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case NodeType::Choice:
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return m_ArgName == dynamic_cast<Choice*>(node)->m_ChoiceName;
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case NodeType::Argument:
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return m_ArgName == dynamic_cast<AbstractArgument*>(node)->m_ArgName;
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default:
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throw std::runtime_error("No such node type.");
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}
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}
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std::string AbstractArgument::GetHelpSymbol() {
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std::string newargname = "<";
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newargname.append(m_ArgName);
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newargname.append(">");
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return newargname;
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}
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bool AbstractArgument::BeginAccept(const std::string& strl, ArgumentsMap* amap) {
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m_Accepted = BeginParse(strl);
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if (m_Accepted) amap->Add(m_ArgName, this);
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return m_Accepted;
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}
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void AbstractArgument::EndAccept(ArgumentsMap* amap) {
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if (m_Accepted) {
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amap->Remove(m_ArgName);
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EndParse();
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m_Accepted = false;
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}
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}
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#pragma endregion
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#pragma region Argument Detail Impl
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bool IntArgument::BeginParse(const std::string& val) {
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char* pend = nullptr;
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errno = 0;
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int64_t v = std::strtoll(val.c_str(), &pend, 10);
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if (pend == val.c_str() || errno == ERANGE) return false;
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// check limit
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int32_t value = static_cast<int32_t>(v);
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if (m_IntLimit != nullptr && !m_IntLimit(value)) {
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return false;
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}
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m_ParsedData = new IntArgument::vType(value);
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return true;
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}
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void IntArgument::EndParse() {
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delete reinterpret_cast<IntArgument::vType*>(m_ParsedData);
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m_ParsedData = nullptr;
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}
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bool StringArgument::BeginParse(const std::string& strl) {
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// string always accept every text
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m_ParsedData = new StringArgument::vType(strl);
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return true;
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}
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void StringArgument::EndParse() {
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delete reinterpret_cast<StringArgument::vType*>(m_ParsedData);
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m_ParsedData = nullptr;
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}
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// Copy from Gamepiaynmo/BallanceModLoader
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std::vector<std::string> SplitString(const std::string& str, const std::string& de) {
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size_t lpos, pos = 0;
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std::vector<std::string> res;
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lpos = str.find_first_not_of(de, pos);
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while (lpos != std::string::npos) {
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pos = str.find_first_of(de, lpos);
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res.push_back(str.substr(lpos, pos - lpos));
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if (pos == std::string::npos) break;
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lpos = str.find_first_not_of(de, pos);
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}
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if (pos != std::string::npos)
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res.push_back("");
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return res;
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}
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bool EncodingArgument::BeginParse(const std::string& strl) {
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// encoding always accept every text
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m_ParsedData = new EncodingArgument::vType(SplitString(strl, ","));
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return true;
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}
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void EncodingArgument::EndParse() {
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delete reinterpret_cast<EncodingArgument::vType*>(m_ParsedData);
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m_ParsedData = nullptr;
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}
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#pragma endregion
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}
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#pragma region Command Root
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CommandRoot::CommandRoot() : AbstractNode() {}
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@ -436,252 +568,4 @@ namespace Unvirt::CmdHelper {
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#pragma endregion
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#pragma region Literal
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Literal::Literal(const char* words) :
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AbstractNode(),
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m_Literal(words == nullptr ? "" : words) {
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if (words == nullptr || m_Literal.empty())
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throw std::invalid_argument("Invalid literal.");
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}
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Literal::~Literal() {}
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NodeType Literal::GetNodeType() {
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return NodeType::Literal;
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}
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bool Literal::IsConflictWith(AbstractNode* node) {
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switch (node->GetNodeType()) {
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case NodeType::Literal:
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return dynamic_cast<Literal*>(node)->m_Literal == m_Literal;
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case NodeType::Choice:
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for (const auto& item : dynamic_cast<Choice*>(node)->m_Vocabulary) {
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if (item == m_Literal) return true;
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}
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return false;
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case NodeType::Argument:
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return false;
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default:
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throw std::runtime_error("No such node type.");
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}
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}
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std::string Literal::GetHelpSymbol() {
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return m_Literal;
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}
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bool Literal::BeginAccept(const std::string& strl, ArgumentsMap*) {
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return strl == m_Literal;
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}
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void Literal::EndAccept(ArgumentsMap*) {}
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#pragma endregion
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#pragma region Choice
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Choice::Choice(const char* argname, const std::initializer_list<std::string>& vocabulary) :
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AbstractNode(),
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m_GottenIndex(0u), m_Accepted(false),
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m_ChoiceName(argname == nullptr ? "" : argname), m_Vocabulary(vocabulary) {
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if (argname == nullptr || m_ChoiceName.empty())
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throw std::invalid_argument("Invalid choice name.");
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if (m_Vocabulary.size() < 2)
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throw std::invalid_argument("Too less vocabulary. At least 2 items.");
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}
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Choice::~Choice() {}
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size_t* Choice::GetIndex() {
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return &m_GottenIndex;
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}
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NodeType Choice::GetNodeType() {
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return NodeType::Choice;
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}
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bool Choice::IsConflictWith(AbstractNode* node) {
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switch (node->GetNodeType()) {
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case NodeType::Literal:
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{
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Literal* pliteral = dynamic_cast<Literal*>(node);
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for (const auto& word : m_Vocabulary) {
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if (word == pliteral->m_Literal)
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return true;
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}
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return false;
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}
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case NodeType::Choice:
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{
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Choice* pchoice = dynamic_cast<Choice*>(node);
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if (pchoice->m_ChoiceName == m_ChoiceName)
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return true;
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for (const auto& thisword : m_Vocabulary) {
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for (const auto& thatword : pchoice->m_Vocabulary) {
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if (thisword == thatword)
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return true;
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
case NodeType::Argument:
|
||||
return m_ChoiceName == dynamic_cast<AbstractArgument*>(node)->m_ArgName;
|
||||
default:
|
||||
throw std::runtime_error("No such node type.");
|
||||
}
|
||||
}
|
||||
|
||||
std::string Choice::GetHelpSymbol() {
|
||||
std::string switches;
|
||||
for (const auto& item : m_Vocabulary) {
|
||||
if (!switches.empty()) switches += " | ";
|
||||
switches += item;
|
||||
}
|
||||
return "[" + switches + "]";
|
||||
}
|
||||
|
||||
bool Choice::BeginAccept(const std::string& strl, ArgumentsMap* amap) {
|
||||
for (size_t i = 0; i < m_Vocabulary.size(); ++i) {
|
||||
if (strl == m_Vocabulary[i]) {
|
||||
m_Accepted = true;
|
||||
m_GottenIndex = i;
|
||||
amap->Add(m_ChoiceName, this);
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
void Choice::EndAccept(ArgumentsMap* amap) {
|
||||
if (m_Accepted) {
|
||||
m_Accepted = false;
|
||||
amap->Remove(m_ChoiceName);
|
||||
}
|
||||
}
|
||||
|
||||
#pragma endregion
|
||||
|
||||
#pragma region Abstract Argument
|
||||
|
||||
AbstractArgument::AbstractArgument(const char* argname) :
|
||||
AbstractNode(),
|
||||
m_ArgName(argname == nullptr ? "" : argname),
|
||||
m_Accepted(false), m_ParsedData(nullptr) {
|
||||
if (argname == nullptr || m_ArgName.empty())
|
||||
throw std::invalid_argument("Invalid argument name.");
|
||||
}
|
||||
|
||||
AbstractArgument::~AbstractArgument() {}
|
||||
|
||||
NodeType AbstractArgument::GetNodeType() {
|
||||
return NodeType::Argument;
|
||||
}
|
||||
|
||||
bool AbstractArgument::IsConflictWith(AbstractNode* node) {
|
||||
switch (node->GetNodeType()) {
|
||||
case NodeType::Literal:
|
||||
return false;
|
||||
case NodeType::Choice:
|
||||
return m_ArgName == dynamic_cast<Choice*>(node)->m_ChoiceName;
|
||||
case NodeType::Argument:
|
||||
return m_ArgName == dynamic_cast<AbstractArgument*>(node)->m_ArgName;
|
||||
default:
|
||||
throw std::runtime_error("No such node type.");
|
||||
}
|
||||
}
|
||||
|
||||
std::string AbstractArgument::GetHelpSymbol() {
|
||||
std::string newargname = "<";
|
||||
newargname.append(m_ArgName);
|
||||
newargname.append(">");
|
||||
return newargname;
|
||||
}
|
||||
|
||||
bool AbstractArgument::BeginAccept(const std::string& strl, ArgumentsMap* amap) {
|
||||
m_Accepted = BeginParse(strl);
|
||||
if (m_Accepted) amap->Add(m_ArgName, this);
|
||||
return m_Accepted;
|
||||
}
|
||||
|
||||
void AbstractArgument::EndAccept(ArgumentsMap* amap) {
|
||||
if (m_Accepted) {
|
||||
amap->Remove(m_ArgName);
|
||||
EndParse();
|
||||
m_Accepted = false;
|
||||
}
|
||||
}
|
||||
|
||||
#pragma endregion
|
||||
|
||||
#pragma region Argument Detail Impl
|
||||
|
||||
bool IntArgument::BeginParse(const std::string& val) {
|
||||
char* pend = nullptr;
|
||||
errno = 0;
|
||||
int64_t v = std::strtoll(val.c_str(), &pend, 10);
|
||||
|
||||
if (pend == val.c_str() || errno == ERANGE) return false;
|
||||
|
||||
// check limit
|
||||
int32_t value = static_cast<int32_t>(v);
|
||||
if (m_IntLimit != nullptr && !m_IntLimit(value)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
m_ParsedData = new IntArgument::vType(value);
|
||||
return true;
|
||||
}
|
||||
|
||||
void IntArgument::EndParse() {
|
||||
delete reinterpret_cast<IntArgument::vType*>(m_ParsedData);
|
||||
m_ParsedData = nullptr;
|
||||
}
|
||||
|
||||
bool StringArgument::BeginParse(const std::string& strl) {
|
||||
// string always accept every text
|
||||
m_ParsedData = new StringArgument::vType(strl);
|
||||
return true;
|
||||
}
|
||||
|
||||
void StringArgument::EndParse() {
|
||||
delete reinterpret_cast<StringArgument::vType*>(m_ParsedData);
|
||||
m_ParsedData = nullptr;
|
||||
}
|
||||
|
||||
// Copy from Gamepiaynmo/BallanceModLoader
|
||||
std::vector<std::string> SplitString(const std::string& str, const std::string& de) {
|
||||
size_t lpos, pos = 0;
|
||||
std::vector<std::string> res;
|
||||
|
||||
lpos = str.find_first_not_of(de, pos);
|
||||
while (lpos != std::string::npos) {
|
||||
pos = str.find_first_of(de, lpos);
|
||||
res.push_back(str.substr(lpos, pos - lpos));
|
||||
if (pos == std::string::npos) break;
|
||||
|
||||
lpos = str.find_first_not_of(de, pos);
|
||||
}
|
||||
|
||||
if (pos != std::string::npos)
|
||||
res.push_back("");
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
bool EncodingArgument::BeginParse(const std::string& strl) {
|
||||
// encoding always accept every text
|
||||
m_ParsedData = new EncodingArgument::vType(SplitString(strl, ","));
|
||||
return true;
|
||||
}
|
||||
|
||||
void EncodingArgument::EndParse() {
|
||||
delete reinterpret_cast<EncodingArgument::vType*>(m_ParsedData);
|
||||
m_ParsedData = nullptr;
|
||||
}
|
||||
|
||||
#pragma endregion
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,15 +1,16 @@
|
|||
#pragma once
|
||||
|
||||
#include <VTAll.hpp>
|
||||
#include <YYCCommonplace.hpp>
|
||||
#include <string>
|
||||
#include <vector>
|
||||
#include <functional>
|
||||
#include <deque>
|
||||
#include <map>
|
||||
#include <stdexcept>
|
||||
#include <cinttypes>
|
||||
#include <set>
|
||||
#include <functional>
|
||||
#include <algorithm>
|
||||
#include <initializer_list>
|
||||
#include <type_traits>
|
||||
#include <stdexcept>
|
||||
#include <memory>
|
||||
|
||||
namespace Unvirt::CmdHelper {
|
||||
|
|
@ -50,9 +51,7 @@ namespace Unvirt::CmdHelper {
|
|||
StateType m_State, m_PrevState;
|
||||
};
|
||||
|
||||
#pragma region ArgumentsMap
|
||||
|
||||
namespace ArgumentsMapItem {
|
||||
namespace AMItems {
|
||||
|
||||
class AbstractItem {
|
||||
public:
|
||||
|
|
@ -111,25 +110,25 @@ namespace Unvirt::CmdHelper {
|
|||
|
||||
class ArgumentsMap {
|
||||
public:
|
||||
ArgumentsMap() : m_Data() {}
|
||||
~ArgumentsMap() {}
|
||||
ArgumentsMap();
|
||||
~ArgumentsMap();
|
||||
YYCC_DEF_CLS_COPY_MOVE(ArgumentsMap);
|
||||
|
||||
protected:
|
||||
std::map<std::u8string, std::unique_ptr<ArgumentsMapItem::AbstractItem>> m_Data;
|
||||
std::map<std::u8string, std::shared_ptr<AMItems::AbstractItem>> m_Data;
|
||||
|
||||
public:
|
||||
template<class _Ty, class... _Types, std::enable_if_t<std::is_base_of_v<ArgumentsMapItem::AbstractItem, _Ty>, int> = 0>
|
||||
template<class _Ty, class... _Types, std::enable_if_t<std::is_base_of_v<AMItems::AbstractItem, _Ty>, int> = 0>
|
||||
void Add(const std::u8string_view& key, _Types&&... args) {
|
||||
// check argument
|
||||
if (key.empty())
|
||||
throw std::invalid_argument("argument key should not be empty");
|
||||
// insert into data
|
||||
auto result = m_Data.try_emplace(std::u8string(key), std::make_unique<_Ty>(std::forward<_Types>(args)...));
|
||||
auto result = m_Data.try_emplace(std::u8string(key), std::make_shared<_Ty>(std::forward<_Types>(args)...));
|
||||
if (!result.second)
|
||||
throw std::runtime_error("try to add an existing key.");
|
||||
}
|
||||
template<class _Ty, std::enable_if_t<std::is_base_of_v<ArgumentsMapItem::AbstractItem, _Ty>, int> = 0>
|
||||
template<class _Ty, std::enable_if_t<std::is_base_of_v<AMItems::AbstractItem, _Ty>, int> = 0>
|
||||
const _Ty& Get() const {
|
||||
// check argument
|
||||
if (key.empty())
|
||||
|
|
@ -139,21 +138,19 @@ namespace Unvirt::CmdHelper {
|
|||
if (finder == m_Data.end())
|
||||
throw std::runtime_error("try to get a non-existent key.");
|
||||
// get stored value data
|
||||
const ArgumentsMapItem::AbstractItem& value = *finder->second.get();
|
||||
const AMItems::AbstractItem& value = *finder->second.get();
|
||||
return static_cast<const _Ty&>(value);
|
||||
}
|
||||
void Remove(const std::u8string_view& key) {
|
||||
// check argument
|
||||
if (key.empty())
|
||||
throw std::invalid_argument("argument key should not be empty");
|
||||
// remove and return remove result.
|
||||
// remove it from map and check whether remove item
|
||||
if (m_Data.erase(std::u8string(key)) == 0u)
|
||||
throw std::runtime_error("try to delete a non-existent key.");
|
||||
}
|
||||
};
|
||||
|
||||
#pragma endregion
|
||||
|
||||
class HelpDocument {
|
||||
public:
|
||||
HelpDocument();
|
||||
|
|
@ -188,171 +185,302 @@ namespace Unvirt::CmdHelper {
|
|||
std::vector<ResultItem> m_Results;
|
||||
};
|
||||
|
||||
class AbstractNode {
|
||||
friend class CommandRoot;
|
||||
namespace Nodes {
|
||||
|
||||
class AbstractNode {
|
||||
friend class CommandRoot;
|
||||
public:
|
||||
using FctExecution_t = void(*)(const ArgumentsMap&);
|
||||
|
||||
public:
|
||||
AbstractNode();
|
||||
virtual ~AbstractNode();
|
||||
YYCC_DEF_CLS_COPY_MOVE(AbstractNode);
|
||||
|
||||
protected:
|
||||
std::vector<std::shared_ptr<AbstractNode>> m_Nodes;
|
||||
FctExecution_t m_Execution;
|
||||
std::u8string m_ExecutionDesc;
|
||||
std::u8string m_Comment;
|
||||
|
||||
protected:
|
||||
/**
|
||||
* @brief The core function to generate help document by following hierarchy.
|
||||
* @param[in] doc The generating help document.
|
||||
*/
|
||||
void Help(HelpDocument& doc);
|
||||
/**
|
||||
* @brief The core function to consume splitted commands by following hierarchy.
|
||||
* @param[in] al The splitted commands deque.
|
||||
* @param[in] am Argument map for operating.
|
||||
* @return True if we reach a legal terminal, otherwise false.
|
||||
* Once this function return true, there is no need to process other nodes.
|
||||
* Because the final command processor has been executed when this function return true.
|
||||
*/
|
||||
bool Consume(CmdSplitter::Result_t& al, ArgumentsMap& am);
|
||||
|
||||
protected:
|
||||
/**
|
||||
* @brief Check whether current node is argument.
|
||||
* @return True if it is.
|
||||
* @remakrs
|
||||
* \li Sub-class must implement this function.
|
||||
* \li This function is used internally because when consuming nodes,
|
||||
* we need consume literal and choice first, then consume argument.
|
||||
*/
|
||||
virtual bool IsArgument() = 0;
|
||||
/**
|
||||
* @brief Get a set of identifier used for checking node conflict.
|
||||
* @return The set of identifier.
|
||||
* @remarks
|
||||
* Sub-class must implement this function.
|
||||
* \par
|
||||
* This function return the reference to the set.
|
||||
* It means that sub-class need allocate some memory by themselves
|
||||
* to store the value returned by this function.
|
||||
* \par
|
||||
* When adding new nodes, we use this function to check whether there is conflict.
|
||||
* If the intersection between 2 sets coming from different nodes is not empty,
|
||||
* it means that they have conflict, the process of adding will be aborted.
|
||||
* \par
|
||||
* In details:
|
||||
* \li Literal: Put its literal in set directly.
|
||||
* \li Choice: Put its vocabulary and associated argument name in set.
|
||||
* \li Argument: Put its argument name in set.
|
||||
*/
|
||||
virtual const std::set<std::u8string>& GetConflictSet() = 0;
|
||||
/**
|
||||
* @brief Get the string presented in syntax part in help messages.
|
||||
* @return The string presented in syntax part in help messages.
|
||||
* @remarks Sub-class must implement this function.
|
||||
* \li Literal: Return its literal directly.
|
||||
* \li Choice: Join vocabulary with \c \| then brack it with square bracker.
|
||||
* \li Argument: Bracket its argument name with sharp bracket.
|
||||
*/
|
||||
virtual std::u8string GetHelpSymbol() = 0;
|
||||
/**
|
||||
* @brief Try consume given command for this node.
|
||||
* @param[in] cur_cmd The command hope to be accepted.
|
||||
* @param[in] am Argument map for operating.
|
||||
* @return True if this node accept this command.
|
||||
* @remarks
|
||||
* Sub-class must implement this function.
|
||||
* \par
|
||||
* For choice and argument, if given command is accepted,
|
||||
* implementation should insert data into argument map.
|
||||
* So that user can visit it.
|
||||
*/
|
||||
virtual bool BeginConsume(const std::u8string& cur_cmd, ArgumentsMap& am) = 0;
|
||||
/**
|
||||
* @brief End the consume of this node.
|
||||
* @param[in] am Argument map for operating.
|
||||
* @remarks
|
||||
* Sub-class must implement this function.
|
||||
* \par
|
||||
* If BeginConsume() return false, this function will not be called.
|
||||
* \par
|
||||
* For choice and argument, if you have accepted one command,
|
||||
* implementation should remove data from argument map.
|
||||
* So that following nodes (not belongs to this tree) may add the argument with same name.
|
||||
*/
|
||||
virtual void EndConsume(ArgumentsMap& am) = 0;
|
||||
|
||||
public:
|
||||
/**
|
||||
* @brief Add a new node as child nodes for this node.
|
||||
* @tparam _Ty The child class type of AbstractNode.
|
||||
* @param[in] node The node instance to be added.
|
||||
* @return Return self for chain calling.
|
||||
*/
|
||||
template<class _Ty, std::enable_if_t<std::is_base_of_v<AbstractNode, _Ty>, int> = 0>
|
||||
AbstractNode& Then(_Ty&& node) {
|
||||
// create node first
|
||||
auto new_node = std::make_shared<_Ty>(std::forward<_Types>(node));
|
||||
// check conflict
|
||||
std::vector<std::u8string> intersection;
|
||||
const auto& new_node_set = new_node->GetConflictSet();
|
||||
for (auto& node : mNodes) {
|
||||
const auto& node_set = node->GetConflictSet();
|
||||
// compute intersection
|
||||
intersection.clear();
|
||||
std::set_intersection(
|
||||
new_node_set.begin(), new_node_set.end(),
|
||||
node_set.begin(), node_set.begin(),
|
||||
std::back_inserter(intersection)
|
||||
);
|
||||
// check whether it is empty intersection
|
||||
if (!intersection.empty())
|
||||
throw std::invalid_argument("try to add a conflict node. please check your code.");
|
||||
}
|
||||
// add into list
|
||||
m_Nodes.emplace_back(std::move(new_node));
|
||||
return *this;
|
||||
}
|
||||
/**
|
||||
* @brief Setup execution infomation for this node.
|
||||
* @param[in] fct Associated execution function. nullptr is not allowed.
|
||||
* @param[in] exec_desc Associated execution message presented in help message.
|
||||
* @return Return self for chain calling.
|
||||
* @remarks This function only can be called once for one node.
|
||||
*/
|
||||
AbstractNode& Executes(FctExecution_t fct, const std::u8string_view& exec_desc = u8"");
|
||||
/**
|
||||
* @brief Setup command for this node.
|
||||
* @param[in] comment The command of current node.
|
||||
* @return Return self for chain calling.
|
||||
*/
|
||||
AbstractNode& Comment(const std::u8string_view& comment = u8"");
|
||||
|
||||
};
|
||||
|
||||
class Literal : public AbstractNode {
|
||||
public:
|
||||
Literal(const std::u8string_view& words);
|
||||
virtual ~Literal();
|
||||
YYCC_DEF_CLS_COPY_MOVE(Literal);
|
||||
|
||||
protected:
|
||||
virtual bool IsArgument() override;
|
||||
virtual const std::set<std::u8string>& GetConflictSet() override;
|
||||
virtual std::u8string GetHelpSymbol() override;
|
||||
virtual bool BeginConsume(const std::u8string& cur_cmd, ArgumentsMap& am) override;
|
||||
virtual void EndConsume(ArgumentsMap& am) override;
|
||||
|
||||
std::u8string m_Literal;
|
||||
std::set<std::u8string> m_ConflictSet;
|
||||
};
|
||||
|
||||
class Choice : public AbstractNode {
|
||||
public:
|
||||
using ArgValue_t = size_t;
|
||||
public:
|
||||
Choice(const std::u8string_view& argname, const std::initializer_list<std::u8string>& vocabulary);
|
||||
virtual ~Choice();
|
||||
YYCC_DEF_CLS_COPY_MOVE(Choice);
|
||||
|
||||
protected:
|
||||
virtual bool IsArgument() override;
|
||||
virtual const std::set<std::u8string>& GetConflictSet() override;
|
||||
virtual std::u8string GetHelpSymbol() override;
|
||||
virtual bool BeginConsume(const std::u8string& cur_cmd, ArgumentsMap& am) override;
|
||||
virtual void EndConsume(ArgumentsMap& am) override;
|
||||
|
||||
std::u8string m_ChoiceName;
|
||||
std::vector<std::u8string> m_Vocabulary;
|
||||
std::set<std::u8string> m_ConflictSet;
|
||||
};
|
||||
|
||||
class AbstractArgument : public AbstractNode {
|
||||
public:
|
||||
AbstractArgument(const std::u8string_view& argname);
|
||||
virtual ~AbstractArgument();
|
||||
YYCC_DEF_CLS_COPY_MOVE(AbstractArgument);
|
||||
|
||||
// AbstractArgument do not implement BeginConsume().
|
||||
// Because it involve the detail of data parsing.
|
||||
// However, other parts are shared by all argument type.
|
||||
|
||||
protected:
|
||||
virtual bool IsArgument() override;
|
||||
virtual const std::set<std::u8string>& GetConflictSet() override;
|
||||
virtual std::u8string GetHelpSymbol() override;
|
||||
// virtual bool BeginConsume(const std::u8string& cur_cmd, ArgumentsMap& am) override;
|
||||
virtual void EndConsume(ArgumentsMap& am) override;
|
||||
|
||||
std::u8string m_ArgName;
|
||||
std::set<std::u8string> m_ConflictSet;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief Return true mean this value can accept.
|
||||
*/
|
||||
using IntLimit = std::function<bool(int32_t)>;
|
||||
class IntArgument : public AbstractArgument {
|
||||
public:
|
||||
using vType = int32_t;
|
||||
IntArgument(const char* argname, IntLimit limit = nullptr) :
|
||||
AbstractArgument(argname), m_IntLimit(limit) {}
|
||||
virtual ~IntArgument() {}
|
||||
YYCC_DEL_CLS_COPY_MOVE(IntArgument);
|
||||
|
||||
protected:
|
||||
virtual bool BeginParse(const std::string&) override;
|
||||
virtual void EndParse() override;
|
||||
|
||||
IntLimit m_IntLimit;
|
||||
};
|
||||
|
||||
class StringArgument : public AbstractArgument {
|
||||
public:
|
||||
using vType = std::string;
|
||||
StringArgument(const char* argname) :
|
||||
AbstractArgument(argname) {}
|
||||
virtual ~StringArgument() {}
|
||||
YYCC_DEL_CLS_COPY_MOVE(StringArgument);
|
||||
|
||||
protected:
|
||||
virtual bool BeginParse(const std::string&) override;
|
||||
virtual void EndParse() override;
|
||||
};
|
||||
|
||||
class EncodingArgument : public AbstractArgument {
|
||||
public:
|
||||
using vType = std::vector<std::string>;
|
||||
EncodingArgument(const char* argname) :
|
||||
AbstractArgument(argname) {}
|
||||
virtual ~EncodingArgument() {}
|
||||
YYCC_DEL_CLS_COPY_MOVE(EncodingArgument);
|
||||
|
||||
protected:
|
||||
virtual bool BeginParse(const std::string&) override;
|
||||
virtual void EndParse() override;
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
class CommandParser {
|
||||
public:
|
||||
using ExecutionFct = void(*)(const ArgumentsMap&);
|
||||
CommandParser();
|
||||
~CommandParser();
|
||||
|
||||
public:
|
||||
AbstractNode();
|
||||
virtual ~AbstractNode();
|
||||
YYCC_DEF_CLS_COPY_MOVE(AbstractNode);
|
||||
bool Parse(std::deque<std::string>& cmds);
|
||||
HelpDocument Help();
|
||||
|
||||
AbstractNode* Then(AbstractNode*);
|
||||
AbstractNode* Executes(ExecutionFct, const char* = nullptr);
|
||||
AbstractNode* Comment(const char*);
|
||||
|
||||
protected:
|
||||
void Help(HelpDocument& doc);
|
||||
bool Consume(CmdSplitter::Result_t& cmds, ArgumentsMap& am);
|
||||
virtual bool IsConflictWith(AbstractNode* node) = 0;
|
||||
virtual bool IsArgument() = 0;
|
||||
virtual std::u8string HelpSymbol() = 0;
|
||||
virtual bool BeginConsume(const std::u8string& cur_cmd, ArgumentsMap& am) = 0;
|
||||
virtual void EndConsume(ArgumentsMap*) = 0;
|
||||
|
||||
protected:
|
||||
std::vector<std::unique_ptr<AbstractNode>> m_Nodes;
|
||||
ExecutionFct m_Execution;
|
||||
std::string m_ExecutionDesc;
|
||||
std::string m_Comment;
|
||||
private:
|
||||
class RootNode : Nodes::AbstractNode {
|
||||
public:
|
||||
RootNode();
|
||||
virtual ~RootNode();
|
||||
YYCC_DEF_CLS_COPY_MOVE(RootNode);
|
||||
|
||||
protected:
|
||||
virtual bool IsArgument() override;
|
||||
virtual const std::set<std::u8string>& GetConflictSet() override;
|
||||
virtual std::u8string GetHelpSymbol() override;
|
||||
virtual bool BeginConsume(const std::u8string& cur_cmd, ArgumentsMap& am) override;
|
||||
virtual void EndConsume(ArgumentsMap& am) override;
|
||||
};
|
||||
RootNode m_RootNode;
|
||||
};
|
||||
|
||||
class CommandRoot : public AbstractNode {
|
||||
public:
|
||||
CommandRoot();
|
||||
virtual ~CommandRoot();
|
||||
YYCC_DEL_CLS_COPY_MOVE(CommandRoot);
|
||||
//class CommandRoot : public AbstractNode {
|
||||
//public:
|
||||
// CommandRoot();
|
||||
// virtual ~CommandRoot();
|
||||
// YYCC_DEL_CLS_COPY_MOVE(CommandRoot);
|
||||
|
||||
// Root use special consume and help functions.
|
||||
bool RootConsume(std::deque<std::string>&);
|
||||
HelpDocument* RootHelp();
|
||||
// // Root use special consume and help functions.
|
||||
// bool RootConsume(std::deque<std::string>&);
|
||||
// HelpDocument* RootHelp();
|
||||
|
||||
public:
|
||||
virtual NodeType GetNodeType() override { throw std::logic_error("Root can not be called."); }
|
||||
virtual bool IsConflictWith(AbstractNode*) override { throw std::logic_error("Root can not be called."); }
|
||||
protected:
|
||||
virtual std::string GetHelpSymbol() override { throw std::logic_error("Root can not be called."); }
|
||||
virtual bool BeginAccept(const std::string&, ArgumentsMap*) override { throw std::logic_error("Root can not be called."); }
|
||||
virtual void EndAccept(ArgumentsMap*) override { throw std::logic_error("Root can not be called."); }
|
||||
};
|
||||
|
||||
class Literal : public AbstractNode {
|
||||
friend class Choice;
|
||||
friend class AbstractArgument;
|
||||
public:
|
||||
Literal(const char* words);
|
||||
virtual ~Literal();
|
||||
YYCC_DEL_CLS_COPY_MOVE(Literal);
|
||||
|
||||
public:
|
||||
virtual NodeType GetNodeType() override;
|
||||
virtual bool IsConflictWith(AbstractNode* node) override;
|
||||
protected:
|
||||
virtual std::string GetHelpSymbol() override;
|
||||
virtual bool BeginAccept(const std::string&, ArgumentsMap*) override;
|
||||
virtual void EndAccept(ArgumentsMap*) override;
|
||||
|
||||
std::string m_Literal;
|
||||
};
|
||||
|
||||
class Choice : public AbstractNode {
|
||||
friend class Literal;
|
||||
friend class AbstractArgument;
|
||||
public:
|
||||
using vType = size_t;
|
||||
Choice(const char* argname, const std::initializer_list<std::string>& vocabulary);
|
||||
virtual ~Choice();
|
||||
YYCC_DEL_CLS_COPY_MOVE(Choice);
|
||||
|
||||
vType* GetIndex();
|
||||
|
||||
public:
|
||||
virtual NodeType GetNodeType() override;
|
||||
virtual bool IsConflictWith(AbstractNode* node) override;
|
||||
protected:
|
||||
virtual std::string GetHelpSymbol() override;
|
||||
virtual bool BeginAccept(const std::string&, ArgumentsMap*) override;
|
||||
virtual void EndAccept(ArgumentsMap*) override;
|
||||
|
||||
std::string m_ChoiceName;
|
||||
std::vector<std::string> m_Vocabulary;
|
||||
bool m_Accepted;
|
||||
size_t m_GottenIndex;
|
||||
};
|
||||
|
||||
class AbstractArgument : public AbstractNode {
|
||||
friend class Literal;
|
||||
friend class Choice;
|
||||
public:
|
||||
AbstractArgument(const char* argname);
|
||||
virtual ~AbstractArgument();
|
||||
YYCC_DEL_CLS_COPY_MOVE(AbstractArgument);
|
||||
|
||||
template<class T>
|
||||
T GetData() {
|
||||
return reinterpret_cast<T>(m_ParsedData);
|
||||
}
|
||||
|
||||
public:
|
||||
virtual NodeType GetNodeType() override;
|
||||
virtual bool IsConflictWith(AbstractNode* node) override;
|
||||
protected:
|
||||
virtual std::string GetHelpSymbol() override;
|
||||
virtual bool BeginAccept(const std::string&, ArgumentsMap*) override;
|
||||
virtual void EndAccept(ArgumentsMap*) override;
|
||||
|
||||
virtual bool BeginParse(const std::string&) = 0;
|
||||
virtual void EndParse() = 0;
|
||||
|
||||
std::string m_ArgName;
|
||||
bool m_Accepted;
|
||||
void* m_ParsedData;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief Return true mean this value can accept.
|
||||
*/
|
||||
using IntLimit = std::function<bool(int32_t)>;
|
||||
class IntArgument : public AbstractArgument {
|
||||
public:
|
||||
using vType = int32_t;
|
||||
IntArgument(const char* argname, IntLimit limit = nullptr) :
|
||||
AbstractArgument(argname), m_IntLimit(limit) {}
|
||||
virtual ~IntArgument() {}
|
||||
YYCC_DEL_CLS_COPY_MOVE(IntArgument);
|
||||
|
||||
protected:
|
||||
virtual bool BeginParse(const std::string&) override;
|
||||
virtual void EndParse() override;
|
||||
|
||||
IntLimit m_IntLimit;
|
||||
};
|
||||
|
||||
class StringArgument : public AbstractArgument {
|
||||
public:
|
||||
using vType = std::string;
|
||||
StringArgument(const char* argname) :
|
||||
AbstractArgument(argname) {}
|
||||
virtual ~StringArgument() {}
|
||||
YYCC_DEL_CLS_COPY_MOVE(StringArgument);
|
||||
|
||||
protected:
|
||||
virtual bool BeginParse(const std::string&) override;
|
||||
virtual void EndParse() override;
|
||||
};
|
||||
|
||||
class EncodingArgument : public AbstractArgument {
|
||||
public:
|
||||
using vType = std::vector<std::string>;
|
||||
EncodingArgument(const char* argname) :
|
||||
AbstractArgument(argname) {}
|
||||
virtual ~EncodingArgument() {}
|
||||
YYCC_DEL_CLS_COPY_MOVE(EncodingArgument);
|
||||
|
||||
protected:
|
||||
virtual bool BeginParse(const std::string&) override;
|
||||
virtual void EndParse() override;
|
||||
};
|
||||
//public:
|
||||
//protected:
|
||||
// virtual NodeType GetNodeType() override { throw std::logic_error("Root can not be called."); }
|
||||
// virtual bool IsConflictWith(AbstractNode*) override { throw std::logic_error("Root can not be called."); }
|
||||
// virtual std::string GetHelpSymbol() override { throw std::logic_error("Root can not be called."); }
|
||||
// virtual bool BeginAccept(const std::string&, ArgumentsMap*) override { throw std::logic_error("Root can not be called."); }
|
||||
// virtual void EndAccept(ArgumentsMap*) override { throw std::logic_error("Root can not be called."); }
|
||||
//};
|
||||
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user