blob: 937fd3cb0481c534f022a55753beafb795f6f5a5 [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>
*
*/
#pragma once
#include "ast_commands.hpp"
#include "ast_handlers.hpp"
x3::rule<keyValue_class, keyValue_> const keyValue = "keyValue";
x3::rule<identifier_class, std::string> const identifier = "identifier";
x3::rule<listPrefix_class, std::string> const listPrefix = "listPrefix";
x3::rule<listSuffix_class, std::vector<keyValue_>> const listSuffix = "listSuffix";
x3::rule<listElement_class, listElement_> const listElement = "listElement";
x3::rule<nodeup_class, nodeup_> const nodeup = "nodeup";
x3::rule<container_class, container_> const container = "container";
x3::rule<leaf_class, leaf_> const leaf = "leaf";
x3::rule<path_class, path_> const path = "path";
x3::rule<data_string_class, std::string> const data_string = "data_string";
x3::rule<cd_class, cd_> const cd = "cd";
x3::rule<set_class, set_> const set = "set";
x3::rule<create_class, create_> const create = "create";
x3::rule<delete_class, delete_> const delete_rule = "delete_rule";
x3::rule<command_class, command_> const command = "command";
auto const keyValue_def =
lexeme[+alnum >> '=' >> +alnum];
auto const identifier_def =
lexeme[
((alpha | char_("_")) >> *(alnum | char_("_") | char_("-") | char_(".")))
];
auto const listPrefix_def =
identifier >> '[';
// even though we don't allow no keys to be supplied, the star allows me to check which keys are missing
auto const listSuffix_def =
*keyValue > ']';
auto const listElement_def =
listPrefix > listSuffix;
auto const nodeup_def =
lit("..") > x3::attr(nodeup_());
auto const container_def =
identifier;
auto const leaf_def =
identifier;
// leaf cannot be in the middle of a path, however, I need the grammar's attribute to be a vector of variants
auto const path_def =
(container | listElement | nodeup | leaf) % '/';
auto const data_string_def =
lexeme[+char_];
auto const space_separator =
x3::omit[x3::no_skip[space]];
auto const cd_def =
lit("cd") > space_separator > path >> x3::eoi;
auto const create_def =
lit("create") > space_separator > path >> x3::eoi;
auto const delete_rule_def =
lit("delete") > space_separator > path >> x3::eoi;
auto const set_def =
lit("set") > space_separator > path > space_separator > data_string >> x3::eoi;
auto const command_def =
cd | create | delete_rule | set;
BOOST_SPIRIT_DEFINE(keyValue)
BOOST_SPIRIT_DEFINE(identifier)
BOOST_SPIRIT_DEFINE(listPrefix)
BOOST_SPIRIT_DEFINE(listSuffix)
BOOST_SPIRIT_DEFINE(listElement)
BOOST_SPIRIT_DEFINE(nodeup)
BOOST_SPIRIT_DEFINE(container)
BOOST_SPIRIT_DEFINE(leaf)
BOOST_SPIRIT_DEFINE(path)
BOOST_SPIRIT_DEFINE(data_string)
BOOST_SPIRIT_DEFINE(set)
BOOST_SPIRIT_DEFINE(cd)
BOOST_SPIRIT_DEFINE(create)
BOOST_SPIRIT_DEFINE(delete_rule)
BOOST_SPIRIT_DEFINE(command)