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#pragma once
#include <memory>
#include <string>
#include <vector>
#include "AiBehaviorGrammar.hpp"
#include "EffectGrammar.hpp"
#include "ModifierGrammar.hpp"
#include "SimpleGrammar.hpp"
#include "TriggerGrammar.hpp"
#include <lexy/callback.hpp>
#include <lexy/dsl.hpp>
#include <openvic-dataloader/v2script/AbstractSyntaxTree.hpp>
// Event Grammar Definitions //
namespace ovdl::v2script::grammar {
//////////////////
// Macros
//////////////////
// Produces <KW_NAME>_rule and <KW_NAME>_p
#define OVDL_GRAMMAR_KEYWORD_DEFINE(KW_NAME) \
struct KW_NAME##_rule { \
static constexpr auto keyword = LEXY_KEYWORD(#KW_NAME, lexy::dsl::inline_<Identifier>); \
static constexpr auto rule = keyword >> lexy::dsl::equal_sign; \
static constexpr auto value = lexy::noop; \
}; \
static constexpr auto KW_NAME##_p = lexy::dsl::p<KW_NAME##_rule>
// Produces <KW_NAME>_rule and <KW_NAME>_p and <KW_NAME>_rule::flag and <KW_NAME>_rule::too_many_error
#define OVDL_GRAMMAR_KEYWORD_FLAG_DEFINE(KW_NAME) \
struct KW_NAME##_rule { \
static constexpr auto keyword = LEXY_KEYWORD(#KW_NAME, lexy::dsl::inline_<Identifier>); \
static constexpr auto rule = keyword >> lexy::dsl::equal_sign; \
static constexpr auto value = lexy::noop; \
static constexpr auto flag = lexy::dsl::context_flag<struct KW_NAME##_context>; \
struct too_many_error { \
static constexpr auto name = "expected left side " #KW_NAME " to be found once"; \
}; \
}; \
static constexpr auto KW_NAME##_p = lexy::dsl::p<KW_NAME##_rule> >> (lexy::dsl::must(KW_NAME##_rule::flag.is_reset()).error<KW_NAME##_rule::too_many_error> + KW_NAME##_rule::flag.set())
//////////////////
// Macros
//////////////////
static constexpr auto event_symbols = lexy::symbol_table<ast::EventNode::Type> //
.map<LEXY_SYMBOL("country_event")>(ast::EventNode::Type::Country)
.map<LEXY_SYMBOL("province_event")>(ast::EventNode::Type::Province);
struct EventMtthStatement {
OVDL_GRAMMAR_KEYWORD_DEFINE(months);
struct MonthValue {
static constexpr auto rule = lexy::dsl::inline_<Identifier>;
static constexpr auto value = lexy::as_string<std::string> | lexy::new_<ast::MonthNode, ast::NodePtr>;
};
static constexpr auto rule = lexy::dsl::list(
(months_p >> lexy::dsl::p<MonthValue>) |
lexy::dsl::p<ModifierStatement>);
static constexpr auto value =
lexy::as_list<std::vector<ast::NodePtr>> >>
lexy::callback<ast::NodePtr>(
[](auto&& list) {
return ast::make_node_ptr<ast::MtthNode>(LEXY_MOV(list));
});
};
template<auto Production, typename AstNode>
struct _StringStatement {
static constexpr auto rule = Production >> (lexy::dsl::p<StringExpression> | lexy::dsl::p<Identifier>);
static constexpr auto value =
lexy::callback<ast::NodePtr>(
[](auto&& value) {
auto result = ast::make_node_ptr<AstNode>(std::move(static_cast<ast::AbstractStringNode*>(value)->_name));
delete value;
return result;
});
};
template<auto Production, typename AstNode>
static constexpr auto StringStatement = lexy::dsl::p<_StringStatement<Production, AstNode>>;
struct EventOptionList {
OVDL_GRAMMAR_KEYWORD_FLAG_DEFINE(name);
OVDL_GRAMMAR_KEYWORD_FLAG_DEFINE(ai_chance);
static constexpr auto rule = [] {
constexpr auto create_flags = name_rule::flag.create() + ai_chance_rule::flag.create();
constexpr auto name_statement = StringStatement<name_p, ast::NameNode>;
constexpr auto ai_chance_statement = ai_chance_p >> lexy::dsl::curly_bracketed(lexy::dsl::p<AiBehaviorList>);
return create_flags + lexy::dsl::list(name_statement | ai_chance_statement | lexy::dsl::p<EffectList>);
}();
static constexpr auto value =
lexy::as_list<std::vector<ast::NodePtr>> >>
lexy::callback<ast::NodePtr>(
[](auto&& list) {
return ast::make_node_ptr<ast::EventOptionNode>(LEXY_MOV(list));
});
};
struct EventStatement {
OVDL_GRAMMAR_KEYWORD_FLAG_DEFINE(id);
OVDL_GRAMMAR_KEYWORD_FLAG_DEFINE(title);
OVDL_GRAMMAR_KEYWORD_FLAG_DEFINE(desc);
OVDL_GRAMMAR_KEYWORD_FLAG_DEFINE(picture);
OVDL_GRAMMAR_KEYWORD_FLAG_DEFINE(is_triggered_only);
OVDL_GRAMMAR_KEYWORD_FLAG_DEFINE(fire_only_once);
OVDL_GRAMMAR_KEYWORD_FLAG_DEFINE(immediate);
OVDL_GRAMMAR_KEYWORD_FLAG_DEFINE(mean_time_to_happen);
OVDL_GRAMMAR_KEYWORD_DEFINE(trigger);
OVDL_GRAMMAR_KEYWORD_DEFINE(option);
static constexpr auto rule = [] {
constexpr auto symbol_value = lexy::dsl::symbol<event_symbols>(lexy::dsl::inline_<Identifier>);
constexpr auto create_flags =
id_rule::flag.create() +
title_rule::flag.create() +
desc_rule::flag.create() +
picture_rule::flag.create() +
is_triggered_only_rule::flag.create() +
fire_only_once_rule::flag.create() +
immediate_rule::flag.create() +
mean_time_to_happen_rule::flag.create();
constexpr auto id_statement = StringStatement<id_p, ast::IdNode>;
constexpr auto title_statement = StringStatement<title_p, ast::TitleNode>;
constexpr auto desc_statement = StringStatement<desc_p, ast::DescNode>;
constexpr auto picture_statement = StringStatement<picture_p, ast::PictureNode>;
constexpr auto is_triggered_only_statement = StringStatement<is_triggered_only_p, ast::IsTriggeredNode>;
constexpr auto fire_only_once_statement = StringStatement<fire_only_once_p, ast::FireOnlyNode>;
constexpr auto immediate_statement = immediate_p >> lexy::dsl::p<EffectBlock>;
constexpr auto mean_time_to_happen_statement = mean_time_to_happen_p >> lexy::dsl::curly_bracketed(lexy::dsl::p<EventMtthStatement>);
constexpr auto trigger_statement = trigger_p >> lexy::dsl::curly_bracketed.opt(lexy::dsl::p<TriggerList>);
constexpr auto option_statement = option_p >> lexy::dsl::curly_bracketed(lexy::dsl::p<EventOptionList>);
return symbol_value >>
(create_flags + lexy::dsl::equal_sign +
lexy::dsl::curly_bracketed.opt_list(
id_statement |
title_statement |
desc_statement |
picture_statement |
is_triggered_only_statement |
fire_only_once_statement |
immediate_statement |
mean_time_to_happen_statement |
trigger_statement |
option_statement |
lexy::dsl::p<SimpleAssignmentStatement>));
}();
static constexpr auto value =
lexy::as_list<std::vector<ast::NodePtr>> >>
lexy::callback<ast::NodePtr>(
[](auto& type, auto&& list) {
return ast::make_node_ptr<ast::EventNode>(type, LEXY_MOV(list));
},
[](auto& type, lexy::nullopt = {}) {
return ast::make_node_ptr<ast::EventNode>(type);
});
};
struct EventFile {
// Allow arbitrary spaces between individual tokens.
static constexpr auto whitespace = whitespace_specifier | comment_specifier;
static constexpr auto rule = lexy::dsl::terminator(lexy::dsl::eof).list(lexy::dsl::p<EventStatement> | lexy::dsl::p<SimpleAssignmentStatement>);
static constexpr auto value = lexy::as_list<std::vector<ast::NodePtr>> >> lexy::new_<ast::FileNode, ast::NodePtr>;
};
#undef OVDL_GRAMMAR_KEYWORD_DEFINE
#undef OVDL_GRAMMAR_KEYWORD_FLAG_DEFINE
#undef OVDL_GRAMMAR_KEYWORD_STATEMENT
#undef OVDL_GRAMMAR_KEYWORD_FLAG_STATEMENT
}
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zaaarf