blob: c56b561d4dfc7f6e8ad8cc2931e92114b741df02 [file] [log] [blame]
/*
* 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 "parser.hpp"
TooManyArgumentsException::~TooManyArgumentsException() = default;
InvalidCommandException::~InvalidCommandException() = default;
Parser::Parser(const std::shared_ptr<const Schema> schema)
: m_schema(schema)
{
}
command_ Parser::parseCommand(const std::string& line, std::ostream& errorStream)
{
command_ parsedCommand;
ParserContext ctx(*m_schema, 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))[command]
];
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 Parser::changeNode(const path_& name)
{
if (name.m_scope == Scope::Absolute) {
m_curDir = name;
} else {
for (const auto& it : name.m_nodes) {
if (it.m_suffix.type() == typeid(nodeup_))
m_curDir.m_nodes.pop_back();
else
m_curDir.m_nodes.push_back(it);
}
}
}
std::string Parser::currentNode() const
{
return "/" + pathToDataString(m_curDir);
}
std::set<std::string> Parser::availableNodes(const boost::optional<path_>& path) const
{
auto pathArg = m_curDir;
if (path)
pathArg.m_nodes.insert(pathArg.m_nodes.end(), path->m_nodes.begin(), path->m_nodes.end());
return m_schema->childNodes(pathArg);
}