| /* |
| * Copyright (C) 2018 CESNET, https://photonics.cesnet.cz/ |
| * Copyright (C) 2018 FIT CVUT, https://fit.cvut.cz/ |
| * |
| * Written by Václav Kubernát <kubervac@fit.cvut.cz> |
| * |
| */ |
| #include <ostream> |
| #include "CParser.hpp" |
| |
| TooManyArgumentsException::~TooManyArgumentsException() = default; |
| |
| InvalidCommandException::~InvalidCommandException() = default; |
| |
| |
| CParser::CParser(const CTree& tree) |
| : m_tree(tree) |
| { |
| } |
| |
| cd_ CParser::parseCommand(const std::string& line, std::ostream& errorStream) |
| { |
| cd_ parsedCommand; |
| ParserContext ctx(m_tree, m_curDir); |
| auto it = line.begin(); |
| |
| boost::spirit::x3::error_handler<std::string::const_iterator> errorHandler(it, line.end(), errorStream); |
| |
| auto grammar = |
| x3::with<parser_context_tag>(ctx)[ |
| x3::with<x3::error_handler_tag>(std::ref(errorHandler))[cd] |
| ]; |
| bool result = x3::phrase_parse(it, line.end(), grammar, space, parsedCommand); |
| |
| if (!result || it != line.end()) { |
| throw InvalidCommandException(std::string(it, line.end()) + " this was left of input"); |
| } |
| |
| return parsedCommand; |
| } |
| |
| void CParser::changeNode(const path_& name) |
| { |
| for (const auto& it : name.m_nodes) { |
| if (it.type() == typeid(nodeup_)) |
| m_curDir.m_nodes.pop_back(); |
| else |
| m_curDir.m_nodes.push_back(it); |
| } |
| } |
| |
| std::string CParser::currentNode() const |
| { |
| std::string res; |
| for (const auto& it : m_curDir.m_nodes) { |
| res = joinPaths(res, boost::apply_visitor(nodeToString(), it)); |
| } |
| |
| return res; |
| } |
| |