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#ifndef CPP2REGEX_H_CPP2

#define CPP2REGEX_H_CPP2

//=== Cpp2 type declarations ====================================================

#include "cpp2util.h"

#line 1 "cpp2regex.h2"

#line 20 "cpp2regex.h2"

namespace cpp2 {

namespace regex {

#line 36 "cpp2regex.h2"

template<typename Iter> class match_group;

#line 46 "cpp2regex.h2"

template<typename Iter> class match_return;

#line 54 "cpp2regex.h2"

template<typename CharT, typename Iter, int max_groups> class match_context;

#line 125 "cpp2regex.h2"

template<typename CharT, typename Iter, int max_groups> class reverse_match_context;

#line 194 "cpp2regex.h2"

class true_end_func;

#line 202 "cpp2regex.h2"

class no_reset;

#line 209 "cpp2regex.h2"

template<typename Func> class on_return;

#line 236 "cpp2regex.h2"

template<typename CharT, CharT C> class single_class_entry;

#line 245 "cpp2regex.h2"

template<typename CharT, CharT Start, CharT End> class range_class_entry;

#line 254 "cpp2regex.h2"

template<typename CharT, typename ...List> class combined_class_entry;

#line 263 "cpp2regex.h2"

template<typename CharT, CharT ...List> class list_class_entry;

#line 272 "cpp2regex.h2"

template<typename CharT, string_util::fixed_string Name, typename Inner> class named_class_entry;

#line 279 "cpp2regex.h2"

template<typename CharT, typename Inner> class negated_class_entry;

#line 288 "cpp2regex.h2"

template<typename CharT, string_util::fixed_string Name, typename Inner> class shorthand_class_entry;

#line 336 "cpp2regex.h2"

template<typename CharT> class alternative_token_matcher;

#line 427 "cpp2regex.h2"

template<typename CharT, bool negate, bool case_insensitive, typename ...List> class class_token_matcher;

#line 604 "cpp2regex.h2"

class range_flags;

#line 613 "cpp2regex.h2"

template<typename CharT, int min_count, int max_count, int kind> class range_token_matcher;

#line 785 "cpp2regex.h2"

template<typename CharT, typename matcher> class regular_expression;

#line 921 "cpp2regex.h2"

}

//=== Cpp2 type definitions and function declarations ===========================

#line 1 "cpp2regex.h2"

// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

// Part of the Cppfront Project, under the Apache License v2.0 with LLVM Exceptions.

// See https://github.com/hsutter/cppfront/blob/main/LICENSE for license information.

//===========================================================================

// Regex support

//===========================================================================

#ifndef CPP2_CPP2REGEX_H

#define CPP2_CPP2REGEX_H

template<typename matcher, typename Iter>

using matcher_context_type = typename matcher::template context<Iter>;

#line 20 "cpp2regex.h2"

namespace cpp2 {

namespace regex {

template<typename CharT> using bstring = std::basic_string<CharT>;

template <typename CharT> using bview = std::basic_string_view<CharT>;

//-----------------------------------------------------------------------

// Helper structures for the expression matching.

//-----------------------------------------------------------------------

// Structure for storing group information.

template<typename Iter> class match_group

{

public: Iter start {};

public: Iter end {};

public: bool matched {false};

public: match_group(auto const& start_, auto const& end_, auto const& matched_);

public: match_group();

#line 42 "cpp2regex.h2"

};

// Return value for every matcher.

template<typename Iter> class match_return

{

public: bool matched {false};

public: Iter pos {};

public: match_return(auto const& matched_, auto const& pos_);

public: match_return();

#line 50 "cpp2regex.h2"

};

// Modifiable state during matching.

template<typename CharT, typename Iter, int max_groups> class match_context

{

public: Iter begin;

public: Iter end;

private: std::array<match_group<Iter>,max_groups> groups {};

public: match_context(Iter const& begin_, Iter const& end_);

#line 66 "cpp2regex.h2"

public: match_context(match_context const& that);

#line 66 "cpp2regex.h2"

public: auto operator=(match_context const& that) -> match_context& ;

#line 66 "cpp2regex.h2"

public: match_context(match_context&& that) noexcept;

#line 66 "cpp2regex.h2"

public: auto operator=(match_context&& that) noexcept -> match_context& ;

// String end and start positions

public: [[nodiscard]] auto get_string_start() const& -> decltype(auto);

public: [[nodiscard]] auto get_string_end() const& -> decltype(auto);

// Getter and setter for groups

public: [[nodiscard]] auto get_group(auto const& group) const& -> decltype(auto);

public: [[nodiscard]] auto get_group_end(auto const& group) const& -> int;

#line 83 "cpp2regex.h2"

public: [[nodiscard]] auto get_group_start(auto const& group) const& -> int;

#line 89 "cpp2regex.h2"

public: [[nodiscard]] auto get_group_string(auto const& group) const& -> std::string;

#line 96 "cpp2regex.h2"

public: auto set_group_end(auto const& group, auto const& pos) & -> void;

#line 101 "cpp2regex.h2"

public: auto set_group_invalid(auto const& group) & -> void;

#line 105 "cpp2regex.h2"

public: auto set_group_start(auto const& group, auto const& pos) & -> void;

#line 109 "cpp2regex.h2"

public: [[nodiscard]] auto size() const& -> decltype(auto);

// Misc functions

public: [[nodiscard]] auto fail() const& -> decltype(auto);

public: [[nodiscard]] auto pass(cpp2::impl::in<Iter> cur) const& -> decltype(auto);

public: auto reset() & -> void;

#line 121 "cpp2regex.h2"

};

// Wrapper of context for reverse matches. Implements only the minimal interface for matching.

template<typename CharT, typename Iter, int max_groups> class reverse_match_context

{

public: using ReverseIter = std::reverse_iterator<Iter>;

public: match_context<CharT,Iter,max_groups>* forward_context;

public: ReverseIter begin;

public: ReverseIter end;

public: reverse_match_context(auto const& forward_context_);

#line 133 "cpp2regex.h2"

public: auto operator=(auto const& forward_context_) -> reverse_match_context& ;

#line 139 "cpp2regex.h2"

public: reverse_match_context(reverse_match_context const& that);

#line 139 "cpp2regex.h2"

public: auto operator=(reverse_match_context const& that) -> reverse_match_context& ;

#line 139 "cpp2regex.h2"

public: reverse_match_context(reverse_match_context&& that) noexcept;

#line 139 "cpp2regex.h2"

public: auto operator=(reverse_match_context&& that) noexcept -> reverse_match_context& ;

// String end and start positions

public: [[nodiscard]] auto get_string_start() const& -> decltype(auto);

public: [[nodiscard]] auto get_string_end() const& -> decltype(auto);

// Getter and setter for groups

public: auto set_group_end(auto const& group, auto const& pos) & -> void;

#line 152 "cpp2regex.h2"

public: auto set_group_invalid(auto const& group) & -> void;

#line 156 "cpp2regex.h2"

public: auto set_group_start(auto const& group, auto const& pos) & -> void;

#line 160 "cpp2regex.h2"

// Misc functions

public: [[nodiscard]] auto fail() const& -> decltype(auto);

public: [[nodiscard]] auto pass(cpp2::impl::in<ReverseIter> cur) const& -> decltype(auto);

};

// Helpers for creating wrappers of the match context.

template<typename CharT, typename Iter, int max_groups> [[nodiscard]] auto make_forward_match_context(match_context<CharT,Iter,max_groups>& ctx) -> decltype(auto);

#line 172 "cpp2regex.h2"

template<typename CharT, typename Iter, int max_groups> [[nodiscard]] auto make_forward_match_context(reverse_match_context<CharT,Iter,max_groups>& ctx) -> decltype(auto);

#line 176 "cpp2regex.h2"

template<typename CharT, typename Iter, int max_groups> [[nodiscard]] auto make_reverse_match_context(match_context<CharT,Iter,max_groups>& ctx) -> auto;

#line 180 "cpp2regex.h2"

template<typename CharT, typename Iter, int max_groups> [[nodiscard]] auto make_reverse_match_context(reverse_match_context<CharT,Iter,max_groups>& ctx) -> decltype(auto);

#line 184 "cpp2regex.h2"

// Helpers for creating wrappers of the iterators.

template <typename Iter> [[nodiscard]] auto cpp2_make_forward_iterator(Iter const& pos) -> auto;

template<typename Iter> [[nodiscard]] auto cpp2_make_forward_iterator(std::reverse_iterator<Iter> const& pos) -> auto;

template <typename Iter> [[nodiscard]] auto cpp2_make_reverse_iterator(Iter const& pos) -> auto;

template<typename Iter> [[nodiscard]] auto cpp2_make_reverse_iterator(std::reverse_iterator<Iter> const& pos) -> auto;

#line 192 "cpp2regex.h2"

// End function that returns a valid match.

class true_end_func

{

public: [[nodiscard]] auto operator()(auto const& cur, auto& ctx) const& -> decltype(auto);

};

#line 200 "cpp2regex.h2"

// Empty group reset function.

class no_reset

{

public: auto operator()([[maybe_unused]] auto& unnamed_param_2) const& -> void;

};

#line 208 "cpp2regex.h2"

// Evaluate func on destruction of the handle.

template<typename Func> class on_return

{

private: Func func;

public: on_return(Func const& f);

#line 213 "cpp2regex.h2"

public: auto operator=(Func const& f) -> on_return& ;

#line 217 "cpp2regex.h2"

public: ~on_return() noexcept;

public: on_return(on_return const&) = delete; /* No 'that' constructor, suppress copy */

public: auto operator=(on_return const&) -> void = delete;

#line 220 "cpp2regex.h2"

};

#line 223 "cpp2regex.h2"

// Helper for auto deduction of the Func type.

template<typename Func> [[nodiscard]] auto make_on_return(Func const& func) -> decltype(auto);

#line 227 "cpp2regex.h2"

//-----------------------------------------------------------------------

// Character classes for regular expressions.

//-----------------------------------------------------------------------

// Class syntax: <any character> Example: a

template<typename CharT, CharT C> class single_class_entry

{

public: [[nodiscard]] static auto includes(cpp2::impl::in<CharT> c) -> decltype(auto);

public: [[nodiscard]] static auto to_string() -> decltype(auto);

public: single_class_entry() = default;

public: single_class_entry(single_class_entry const&) = delete; /* No 'that' constructor, suppress copy */

public: auto operator=(single_class_entry const&) -> void = delete;

#line 240 "cpp2regex.h2"

};

#line 243 "cpp2regex.h2"

// Class syntax: - Example: a-c

template<typename CharT, CharT Start, CharT End> class range_class_entry

{

public: [[nodiscard]] static auto includes(cpp2::impl::in<CharT> c) -> decltype(auto);

public: [[nodiscard]] static auto to_string() -> decltype(auto);

public: range_class_entry() = default;

public: range_class_entry(range_class_entry const&) = delete; /* No 'that' constructor, suppress copy */

public: auto operator=(range_class_entry const&) -> void = delete;

#line 249 "cpp2regex.h2"

};

#line 252 "cpp2regex.h2"

// Helper for combining two character classes

template<typename CharT, typename ...List> class combined_class_entry

{

public: [[nodiscard]] static auto includes(cpp2::impl::in<CharT> c) -> decltype(auto);

public: [[nodiscard]] static auto to_string() -> decltype(auto);

public: combined_class_entry() = default;

public: combined_class_entry(combined_class_entry const&) = delete; /* No 'that' constructor, suppress copy */

public: auto operator=(combined_class_entry const&) -> void = delete;

#line 258 "cpp2regex.h2"

};

#line 261 "cpp2regex.h2"

// Class syntax: <list of characters> Example: abcd

template<typename CharT, CharT ...List> class list_class_entry

{

public: [[nodiscard]] static auto includes(cpp2::impl::in<CharT> c) -> decltype(auto);

public: [[nodiscard]] static auto to_string() -> decltype(auto);

public: list_class_entry() = default;

public: list_class_entry(list_class_entry const&) = delete; /* No 'that' constructor, suppress copy */

public: auto operator=(list_class_entry const&) -> void = delete;

#line 267 "cpp2regex.h2"

};

#line 270 "cpp2regex.h2"

// Class syntax: [:<class name:] Example: [:alnum:]

template<typename CharT, string_util::fixed_string Name, typename Inner> class named_class_entry

{

public: [[nodiscard]] static auto includes(cpp2::impl::in<CharT> c) -> decltype(auto);

public: [[nodiscard]] static auto to_string() -> decltype(auto);

public: named_class_entry() = default;

public: named_class_entry(named_class_entry const&) = delete; /* No 'that' constructor, suppress copy */

public: auto operator=(named_class_entry const&) -> void = delete;

#line 276 "cpp2regex.h2"

};

#line 279 "cpp2regex.h2"

template<typename CharT, typename Inner> class negated_class_entry

: public Inner {

public: [[nodiscard]] static auto includes(cpp2::impl::in<CharT> c) -> decltype(auto);

public: negated_class_entry() = default;

public: negated_class_entry(negated_class_entry const&) = delete; /* No 'that' constructor, suppress copy */

public: auto operator=(negated_class_entry const&) -> void = delete;

#line 283 "cpp2regex.h2"

};

#line 286 "cpp2regex.h2"

// Short class syntax: \<character> Example: \w

template<typename CharT, string_util::fixed_string Name, typename Inner> class shorthand_class_entry

{

public: [[nodiscard]] static auto includes(cpp2::impl::in<CharT> c) -> decltype(auto);

public: [[nodiscard]] static auto to_string() -> decltype(auto);

public: shorthand_class_entry() = default;

public: shorthand_class_entry(shorthand_class_entry const&) = delete; /* No 'that' constructor, suppress copy */

public: auto operator=(shorthand_class_entry const&) -> void = delete;

#line 292 "cpp2regex.h2"

};

#line 295 "cpp2regex.h2"

// Named basic character classes

template <typename CharT> using digits_class = named_class_entry<CharT,"digits",range_class_entry<CharT,'0','9'>>;

template <typename CharT> using lower_class = named_class_entry<CharT,"lower",range_class_entry<CharT,'a','z'>>;

template <typename CharT> using upper_class = named_class_entry<CharT,"upper",range_class_entry<CharT,'A','Z'>>;

// Named other classes

template <typename CharT> using alnum_class = named_class_entry<CharT,"alnum",combined_class_entry<CharT,lower_class<CharT>,upper_class<CharT>,digits_class<CharT>>>;

template <typename CharT> using alpha_class = named_class_entry<CharT,"alpha",combined_class_entry<CharT,lower_class<CharT>,upper_class<CharT>>>;

template <typename CharT> using ascii_class = named_class_entry<CharT,"ascii",range_class_entry<CharT,'\x00','\x7F'>>;

template <typename CharT> using blank_class = named_class_entry<CharT,"blank",list_class_entry<CharT,' ','\t'>>;

template <typename CharT> using cntrl_class = named_class_entry<CharT,"cntrl",combined_class_entry<CharT,range_class_entry<CharT,'\x00','\x1F'>,single_class_entry<CharT,'\x7F'>>>;

template <typename CharT> using graph_class = named_class_entry<CharT,"graph",range_class_entry<CharT,'\x21','\x7E'>>;

template<typename CharT> using hor_space_class = named_class_entry<CharT,"hspace",list_class_entry<CharT,'\t',' '>>;

template <typename CharT> using print_class = named_class_entry<CharT,"print",range_class_entry<CharT,'\x20','\x7E'>>;

template <typename CharT> using punct_class = named_class_entry<CharT,"punct",list_class_entry<CharT,'[','!','"','#','$','%','&','\'','(',')','*','+',',','-','.','/',':',';','<','=','>','?','@','[','\\',']','^','_','`','{','|','}','~',']'>>;

template <typename CharT> using space_class = named_class_entry<CharT,"space",list_class_entry<CharT,' ','\t','\r','\n','\v','\f'>>;

template<typename CharT> using ver_space_class = named_class_entry<CharT,"vspace",list_class_entry<CharT,'\n','\v','\f','\r'>>;

template <typename CharT> using word_class = named_class_entry<CharT,"word",combined_class_entry<CharT,alnum_class<CharT>,single_class_entry<CharT,'_'>>>;

template <typename CharT> using xdigit_class = named_class_entry<CharT,"xdigit",combined_class_entry<CharT,range_class_entry<CharT,'A','F'>,range_class_entry<CharT,'a','f'>,digits_class<CharT>>>;

// Shorthand class entries

template <typename CharT> using short_digits_class = shorthand_class_entry<CharT,"\\d",digits_class<CharT>>;

template <typename CharT> using short_hor_space_class = shorthand_class_entry<CharT,"\\h",hor_space_class<CharT>>;

template <typename CharT> using short_space_class = shorthand_class_entry<CharT,"\\s",space_class<CharT>>;

template<typename CharT> using short_vert_space_class = shorthand_class_entry<CharT,"\\v",ver_space_class<CharT>>;

template <typename CharT> using short_word_class = shorthand_class_entry<CharT,"\\w",word_class<CharT>>;

template <typename CharT> using short_not_digits_class = negated_class_entry<CharT,shorthand_class_entry<CharT,"\\D",digits_class<CharT>>>;

template <typename CharT> using short_not_hor_space_class = negated_class_entry<CharT,shorthand_class_entry<CharT,"\\H",hor_space_class<CharT>>>;

template <typename CharT> using short_not_space_class = negated_class_entry<CharT,shorthand_class_entry<CharT,"\\S",space_class<CharT>>>;

template<typename CharT> using short_not_vert_space_class = negated_class_entry<CharT,shorthand_class_entry<CharT,"\\V",ver_space_class<CharT>>>;

template <typename CharT> using short_not_word_class = negated_class_entry<CharT,shorthand_class_entry<CharT,"\\W",word_class<CharT>>>;

#line 332 "cpp2regex.h2"

// Regex syntax: | Example: ab|ba

// Non greedy implementation. First alternative that matches is chosen.

template<typename CharT> class alternative_token_matcher

{

public: [[nodiscard]] static auto match(auto const& cur, auto& ctx, auto const& end_func, auto const& tail, auto const& ...functions) -> auto;

#line 342 "cpp2regex.h2"

private: template<typename ...Other> [[nodiscard]] static auto match_first(auto const& cur, auto& ctx, auto const& end_func, auto const& tail, auto const& cur_func, auto const& cur_reset, Other const& ...other) -> auto;

public: alternative_token_matcher() = default;

public: alternative_token_matcher(alternative_token_matcher const&) = delete; /* No 'that' constructor, suppress copy */

public: auto operator=(alternative_token_matcher const&) -> void = delete;

#line 360 "cpp2regex.h2"

};

#line 363 "cpp2regex.h2"

// Regex syntax: .

template<typename CharT, bool single_line> [[nodiscard]] auto any_token_matcher(auto& cur, auto& ctx) -> bool;

#line 377 "cpp2regex.h2"

// Regex syntax: (?><matcher>) Example: a(?>bc|c)c

template<typename CharT, typename Iter> [[nodiscard]] auto atomic_group_matcher(Iter const& cur, auto& ctx, auto const& inner, auto const& end_func, auto const& other) -> auto;

#line 391 "cpp2regex.h2"

// TODO: Check if vectorization works at some point with this implementation.

// char_token_matcher: <tokens: string_util::fixed_string> (inout cur, inout ctx) -> bool = {

// if !(std::distance(cur, ctx.end) < tokens..size()) {

// return false;

// }

// matched : bool = true;

// (copy i: int = 0) while i < tokens..size() next i += 1 {

// if tokens..data()[i] != cur[i] {

// matched = false; // No break for performance optimization. Without break, the loop vectorizes.

// }

// if matched {

// cur += tokens..size();

// }

// return matched;

// }

// char_token_case_insensitive_matcher: <lower: string_util::fixed_string, upper: string_util::fixed_string> (inout cur, inout ctx) -> bool = {

// if !(std::distance(cur, ctx.end) < lower..size()) {

// return false;

// }

// matched : bool = true;

// (copy i : int = 0) while i < lower..size() next i += 1 {

// if !(lower..data()[i] == cur[i] || upper..data()[i] == cur[i]) {

// matched = false; // No break for performance optimization. Without break, the loop vectorizes.

// }

// if matched {

// cur += lower..size();

// }

// return matched;

// }

#line 425 "cpp2regex.h2"

// Regex syntax: [<character classes>] Example: [abcx-y[:digits:]]

template<typename CharT, bool negate, bool case_insensitive, typename ...List> class class_token_matcher

{

public: [[nodiscard]] static auto match(auto& cur, auto& ctx) -> bool;

#line 458 "cpp2regex.h2"

private: template<typename First, typename ...Other> [[nodiscard]] static auto match_any(cpp2::impl::in<CharT> c) -> bool;

public: class_token_matcher() = default;

public: class_token_matcher(class_token_matcher const&) = delete; /* No 'that' constructor, suppress copy */

public: auto operator=(class_token_matcher const&) -> void = delete;

#line 471 "cpp2regex.h2"

// TODO: Implement proper to string

// to_string: () -> bstring<CharT> = {

// r: bstring<CharT> = "[";

// if negate {

// r += "^";

// }

// r += (bstring<CharT>() + ... + List::to_string());

// r += "]";

// return r;

// }

#line 482 "cpp2regex.h2"

};

#line 485 "cpp2regex.h2"

// Named short classes

template <typename CharT, bool case_insensitive> using named_class_no_new_line = class_token_matcher<CharT,true,case_insensitive,single_class_entry<CharT,'\n'>>;

template <typename CharT, bool case_insensitive> using named_class_digits = class_token_matcher<CharT,false,case_insensitive,digits_class<CharT>>;

template <typename CharT, bool case_insensitive> using named_class_hor_space = class_token_matcher<CharT,false,case_insensitive,hor_space_class<CharT>>;

template <typename CharT, bool case_insensitive> using named_class_space = class_token_matcher<CharT,false,case_insensitive,space_class<CharT>>;

template <typename CharT, bool case_insensitive> using named_class_ver_space = class_token_matcher<CharT,false,case_insensitive,ver_space_class<CharT>>;

template <typename CharT, bool case_insensitive> using named_class_word = class_token_matcher<CharT,false,case_insensitive,word_class<CharT>>;

template <typename CharT, bool case_insensitive> using named_class_not_digits = class_token_matcher<CharT,true,case_insensitive,digits_class<CharT>>;

template <typename CharT, bool case_insensitive> using named_class_not_hor_space = class_token_matcher<CharT,true,case_insensitive,hor_space_class<CharT>>;

template <typename CharT, bool case_insensitive> using named_class_not_space = class_token_matcher<CharT,true,case_insensitive,space_class<CharT>>;

template <typename CharT, bool case_insensitive> using named_class_not_ver_space = class_token_matcher<CharT,true,case_insensitive,ver_space_class<CharT>>;

template <typename CharT, bool case_insensitive> using named_class_not_word = class_token_matcher<CharT,true,case_insensitive,word_class<CharT>>;

#line 501 "cpp2regex.h2"

// Regex syntax: \<number> Example: \1

// \g{name_or_number}

// \k{name_or_number}

// \k<name_or_number>

// \k'name_or_number'

template<typename CharT, int group, bool case_insensitive, bool reverse> [[nodiscard]] auto group_ref_token_matcher(auto& cur, auto& ctx) -> bool;

#line 546 "cpp2regex.h2"

// Regex syntax: $ Example: aa$

template<typename CharT, bool match_new_line, bool match_new_line_before_end> [[nodiscard]] auto line_end_token_matcher(auto const& cur, auto& ctx) -> bool;

#line 562 "cpp2regex.h2"

// Regex syntax: ^ Example: ^aa

template<typename CharT, bool match_new_line> [[nodiscard]] auto line_start_token_matcher(auto const& cur, auto& ctx) -> bool;

#line 571 "cpp2regex.h2"

// Regex syntax: (?=) or (?!) or (*pla), etc. Example: (?=AA)

// Parsed in group_token.

template<typename CharT, bool positive> [[nodiscard]] auto lookahead_token_matcher(auto const& cur, auto& ctx, auto const& func) -> bool;

#line 585 "cpp2regex.h2"

// Regex syntax: (?<=) or (?<!) or (*plb), etc. Example: (?<=AA)

// Parsed in group_token.

template<typename CharT, bool positive> [[nodiscard]] auto lookbehind_token_matcher(auto const& cur, auto& ctx, auto const& func) -> bool;

#line 600 "cpp2regex.h2"

// TODO: @enum as template parameter currently not working. See issue https://github.com/hsutter/cppfront/issues/1147

#line 603 "cpp2regex.h2"

// Options for range matching.

class range_flags {

public: static const int not_greedy;// Try to take as few as possible.

public: static const int greedy;// Try to take as many as possible.

public: static const int possessive;// Do not give back after a greedy match. No backtracking.

public: range_flags() = default;

public: range_flags(range_flags const&) = delete; /* No 'that' constructor, suppress copy */

public: auto operator=(range_flags const&) -> void = delete;

};

#line 609 "cpp2regex.h2"

#line 611 "cpp2regex.h2"

// Regex syntax: <matcher>{min, max} Example: a{2,4}

template<typename CharT, int min_count, int max_count, int kind> class range_token_matcher

{

public: template<typename Iter> [[nodiscard]] static auto match(Iter const& cur, auto& ctx, auto const& inner, auto const& reset_func, auto const& end_func, auto const& tail) -> auto;

#line 629 "cpp2regex.h2"

private: [[nodiscard]] static auto is_below_upper_bound(cpp2::impl::in<int> count) -> bool;

#line 634 "cpp2regex.h2"

private: [[nodiscard]] static auto is_below_lower_bound(cpp2::impl::in<int> count) -> bool;

#line 639 "cpp2regex.h2"

private: [[nodiscard]] static auto is_in_range(cpp2::impl::in<int> count) -> bool;

#line 645 "cpp2regex.h2"

private: template<typename Iter> [[nodiscard]] static auto match_min_count(Iter const& cur, auto& ctx, auto const& inner, auto const& end_func, int& count_r) -> auto;

#line 661 "cpp2regex.h2"

private: template<typename Iter> [[nodiscard]] static auto match_greedy(cpp2::impl::in<int> count, Iter const& cur, Iter const& last_valid, auto& ctx, auto const& inner, auto const& reset_func, auto const& end_func, auto const& other) -> match_return<Iter>;

#line 691 "cpp2regex.h2"

private: template<typename Iter> [[nodiscard]] static auto match_possessive(Iter const& cur, auto& ctx, auto const& inner, auto const& end_func, auto const& other) -> match_return<Iter>;

#line 719 "cpp2regex.h2"

private: template<typename Iter> [[nodiscard]] static auto match_not_greedy(Iter const& cur, auto& ctx, auto const& inner, auto const& end_func, auto const& other) -> match_return<Iter>;

public: range_token_matcher() = default;

public: range_token_matcher(range_token_matcher const&) = delete; /* No 'that' constructor, suppress copy */

public: auto operator=(range_token_matcher const&) -> void = delete;

#line 745 "cpp2regex.h2"

};

#line 748 "cpp2regex.h2"

// Regex syntax: \b or \B Example: \bword\b

// Matches the start end end of word boundaries.

template<typename CharT, bool negate> [[nodiscard]] auto word_boundary_token_matcher(auto& cur, auto& ctx) -> bool;

#line 777 "cpp2regex.h2"

//-----------------------------------------------------------------------

// Regular expression implementation.

//-----------------------------------------------------------------------

// Regular expression implementation

template<typename CharT, typename matcher> class regular_expression

{

public: template<typename Iter> using context = matcher_context_type<matcher,Iter>;// TODO: Remove when nested types are allowed: https://github.com/hsutter/cppfront/issues/727

public: template<typename Iter> class search_return

{

public: bool matched;

public: context<Iter> ctx;

public: int pos;

public: search_return(cpp2::impl::in<bool> matched_, context<Iter> const& ctx_, Iter const& pos_);

#line 801 "cpp2regex.h2"

public: search_return(Iter const& begin, Iter const& end);

#line 807 "cpp2regex.h2"

public: [[nodiscard]] auto group_number() const& -> decltype(auto);

public: [[nodiscard]] auto group(cpp2::impl::in<int> g) const& -> decltype(auto);

public: [[nodiscard]] auto group_start(cpp2::impl::in<int> g) const& -> decltype(auto);

public: [[nodiscard]] auto group_end(cpp2::impl::in<int> g) const& -> decltype(auto);

public: [[nodiscard]] auto group(cpp2::impl::in<bstring<CharT>> g) const& -> decltype(auto);

public: [[nodiscard]] auto group_start(cpp2::impl::in<bstring<CharT>> g) const& -> decltype(auto);

public: [[nodiscard]] auto group_end(cpp2::impl::in<bstring<CharT>> g) const& -> decltype(auto);

public: auto update(cpp2::impl::in<match_return<Iter>> r) & -> void;

#line 821 "cpp2regex.h2"

private: [[nodiscard]] auto get_group_id(cpp2::impl::in<bstring<CharT>> g) const& -> auto;

public: search_return(search_return const&) = delete; /* No 'that' constructor, suppress copy */

public: auto operator=(search_return const&) -> void = delete;

#line 828 "cpp2regex.h2"

};

public: [[nodiscard]] auto find_all(auto&& func, cpp2::impl::in<bview<CharT>> str) const& -> decltype(auto);

public: [[nodiscard]] auto find_all(auto&& func, cpp2::impl::in<bview<CharT>> str, cpp2::impl::in<int> start) const& -> decltype(auto);

public: [[nodiscard]] auto find_all(auto&& func, cpp2::impl::in<bview<CharT>> str, cpp2::impl::in<int> start, cpp2::impl::in<int> length) const& -> decltype(auto);

public: template<typename Iter> auto find_all(auto const& func, Iter const& start, Iter const& end) const& -> void;

#line 861 "cpp2regex.h2"

public: [[nodiscard]] auto match(cpp2::impl::in<bview<CharT>> str) const& -> decltype(auto);

public: [[nodiscard]] auto match(cpp2::impl::in<bview<CharT>> str, auto const& start) const& -> decltype(auto);

public: [[nodiscard]] auto match(cpp2::impl::in<bview<CharT>> str, auto const& start, auto const& length) const& -> decltype(auto);

public: template<typename Iter> [[nodiscard]] auto match(Iter const& start, Iter const& end) const& -> search_return<Iter>;

#line 872 "cpp2regex.h2"

public: [[nodiscard]] auto search(cpp2::impl::in<bview<CharT>> str) const& -> decltype(auto);

public: [[nodiscard]] auto search(cpp2::impl::in<bview<CharT>> str, auto const& start) const& -> decltype(auto);

public: [[nodiscard]] auto search(cpp2::impl::in<bview<CharT>> str, auto const& start, auto const& length) const& -> decltype(auto);

public: template<typename Iter> [[nodiscard]] auto search(Iter const& start, Iter const& end) const& -> search_return<Iter>;

#line 882 "cpp2regex.h2"

private: template<typename Iter> [[nodiscard]] auto search_with_context(context<Iter>& ctx, Iter const& start) const& -> match_return<Iter>;

#line 907 "cpp2regex.h2"

public: [[nodiscard]] auto to_string() const& -> decltype(auto);

// Helper functions

private: [[nodiscard]] static auto get_iter(cpp2::impl::in<bview<CharT>> str, auto const& pos) -> auto;

public: regular_expression() = default;

public: regular_expression(regular_expression const&) = delete; /* No 'that' constructor, suppress copy */

public: auto operator=(regular_expression const&) -> void = delete;

#line 919 "cpp2regex.h2"

};

}

#endif

//=== Cpp2 function definitions =================================================

#line 1 "cpp2regex.h2"

#line 20 "cpp2regex.h2"

namespace cpp2 {

namespace regex {

template <typename Iter> match_group<Iter>::match_group(auto const& start_, auto const& end_, auto const& matched_)

: start{ start_ }

, end{ end_ }

, matched{ matched_ }{}

template <typename Iter> match_group<Iter>::match_group(){}

template <typename Iter> match_return<Iter>::match_return(auto const& matched_, auto const& pos_)

: matched{ matched_ }

, pos{ pos_ }{}

template <typename Iter> match_return<Iter>::match_return(){}

#line 61 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> match_context<CharT,Iter,max_groups>::match_context(Iter const& begin_, Iter const& end_)

: begin{ begin_ }

, end{ end_ }{

#line 64 "cpp2regex.h2"

}

#line 66 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> match_context<CharT,Iter,max_groups>::match_context(match_context const& that)

: begin{ that.begin }

, end{ that.end }

, groups{ that.groups }{}

#line 66 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> auto match_context<CharT,Iter,max_groups>::operator=(match_context const& that) -> match_context& {

begin = that.begin;

end = that.end;

groups = that.groups;

return *this; }

#line 66 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> match_context<CharT,Iter,max_groups>::match_context(match_context&& that) noexcept

: begin{ std::move(that).begin }

, end{ std::move(that).end }

, groups{ std::move(that).groups }{}

#line 66 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> auto match_context<CharT,Iter,max_groups>::operator=(match_context&& that) noexcept -> match_context& {

begin = std::move(that).begin;

end = std::move(that).end;

groups = std::move(that).groups;

return *this; }

#line 70 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> [[nodiscard]] auto match_context<CharT,Iter,max_groups>::get_string_start() const& -> decltype(auto) { return begin; }

#line 71 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> [[nodiscard]] auto match_context<CharT,Iter,max_groups>::get_string_end() const& -> decltype(auto) { return end; }

#line 75 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> [[nodiscard]] auto match_context<CharT,Iter,max_groups>::get_group(auto const& group) const& -> decltype(auto) { return CPP2_ASSERT_IN_BOUNDS(groups, group); }

#line 77 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> [[nodiscard]] auto match_context<CharT,Iter,max_groups>::get_group_end(auto const& group) const& -> int{

if (cpp2::impl::cmp_greater_eq(group,max_groups) || !(CPP2_ASSERT_IN_BOUNDS(groups, group).matched)) {

return 0;

}

return cpp2::unchecked_narrow<int>(std::distance(begin, CPP2_ASSERT_IN_BOUNDS(groups, group).end));

}

#line 83 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> [[nodiscard]] auto match_context<CharT,Iter,max_groups>::get_group_start(auto const& group) const& -> int{

if (cpp2::impl::cmp_greater_eq(group,max_groups) || !(CPP2_ASSERT_IN_BOUNDS(groups, group).matched)) {

return 0;

}

return cpp2::unchecked_narrow<int>(std::distance(begin, CPP2_ASSERT_IN_BOUNDS(groups, group).start));

}

#line 89 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> [[nodiscard]] auto match_context<CharT,Iter,max_groups>::get_group_string(auto const& group) const& -> std::string{

if (cpp2::impl::cmp_greater_eq(group,max_groups) || !(CPP2_ASSERT_IN_BOUNDS(groups, group).matched)) {

return "";

}

return std::string(CPP2_ASSERT_IN_BOUNDS(groups, group).start, CPP2_ASSERT_IN_BOUNDS(groups, group).end);

}

#line 96 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> auto match_context<CharT,Iter,max_groups>::set_group_end(auto const& group, auto const& pos) & -> void{

CPP2_ASSERT_IN_BOUNDS(groups, group).end = pos;

CPP2_ASSERT_IN_BOUNDS(groups, group).matched = true;

}

#line 101 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> auto match_context<CharT,Iter,max_groups>::set_group_invalid(auto const& group) & -> void{

CPP2_ASSERT_IN_BOUNDS(groups, group).matched = false;

}

#line 105 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> auto match_context<CharT,Iter,max_groups>::set_group_start(auto const& group, auto const& pos) & -> void{

CPP2_ASSERT_IN_BOUNDS(groups, group).start = pos;

}

#line 109 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> [[nodiscard]] auto match_context<CharT,Iter,max_groups>::size() const& -> decltype(auto) { return max_groups; }

#line 113 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> [[nodiscard]] auto match_context<CharT,Iter,max_groups>::fail() const& -> decltype(auto) { return match_return<Iter>(false, end); }

#line 114 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> [[nodiscard]] auto match_context<CharT,Iter,max_groups>::pass(cpp2::impl::in<Iter> cur) const& -> decltype(auto) { return match_return<Iter>(true, cur); }

#line 116 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> auto match_context<CharT,Iter,max_groups>::reset() & -> void{

for ( auto& g : groups ) {

g.matched = false;

}

#line 133 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> reverse_match_context<CharT,Iter,max_groups>::reverse_match_context(auto const& forward_context_)

: forward_context{ forward_context_ }

, begin{ std::make_reverse_iterator((*cpp2::impl::assert_not_null(forward_context)).end) }

, end{ std::make_reverse_iterator((*cpp2::impl::assert_not_null(forward_context)).begin) }{

#line 137 "cpp2regex.h2"

}

#line 133 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> auto reverse_match_context<CharT,Iter,max_groups>::operator=(auto const& forward_context_) -> reverse_match_context& {

forward_context = forward_context_;

begin = std::make_reverse_iterator((*cpp2::impl::assert_not_null(forward_context)).end);

end = std::make_reverse_iterator((*cpp2::impl::assert_not_null(forward_context)).begin);

return *this;

#line 137 "cpp2regex.h2"

}

#line 139 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> reverse_match_context<CharT,Iter,max_groups>::reverse_match_context(reverse_match_context const& that)

: forward_context{ that.forward_context }

, begin{ that.begin }

, end{ that.end }{}

#line 139 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> auto reverse_match_context<CharT,Iter,max_groups>::operator=(reverse_match_context const& that) -> reverse_match_context& {

forward_context = that.forward_context;

begin = that.begin;

end = that.end;

return *this; }

#line 139 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> reverse_match_context<CharT,Iter,max_groups>::reverse_match_context(reverse_match_context&& that) noexcept

: forward_context{ std::move(that).forward_context }

, begin{ std::move(that).begin }

, end{ std::move(that).end }{}

#line 139 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> auto reverse_match_context<CharT,Iter,max_groups>::operator=(reverse_match_context&& that) noexcept -> reverse_match_context& {

forward_context = std::move(that).forward_context;

begin = std::move(that).begin;

end = std::move(that).end;

return *this; }

#line 143 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> [[nodiscard]] auto reverse_match_context<CharT,Iter,max_groups>::get_string_start() const& -> decltype(auto) { return end; }

#line 144 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> [[nodiscard]] auto reverse_match_context<CharT,Iter,max_groups>::get_string_end() const& -> decltype(auto) { return begin; }

#line 148 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> auto reverse_match_context<CharT,Iter,max_groups>::set_group_end(auto const& group, auto const& pos) & -> void{

(*cpp2::impl::assert_not_null(forward_context)).set_group_end(group, CPP2_UFCS(base)((pos)));

}

#line 152 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> auto reverse_match_context<CharT,Iter,max_groups>::set_group_invalid(auto const& group) & -> void{

(*cpp2::impl::assert_not_null(forward_context)).set_group_invalid(group);

}

#line 156 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> auto reverse_match_context<CharT,Iter,max_groups>::set_group_start(auto const& group, auto const& pos) & -> void{

(*cpp2::impl::assert_not_null(forward_context)).set_group_start(group, CPP2_UFCS(base)((pos)));

}

#line 162 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> [[nodiscard]] auto reverse_match_context<CharT,Iter,max_groups>::fail() const& -> decltype(auto) { return match_return<ReverseIter>(false, end); }

#line 163 "cpp2regex.h2"

template <typename CharT, typename Iter, int max_groups> [[nodiscard]] auto reverse_match_context<CharT,Iter,max_groups>::pass(cpp2::impl::in<ReverseIter> cur) const& -> decltype(auto) { return match_return<ReverseIter>(true, cur); }

#line 168 "cpp2regex.h2"

template<typename CharT, typename Iter, int max_groups> [[nodiscard]] auto make_forward_match_context(match_context<CharT,Iter,max_groups>& ctx) -> decltype(auto){

return ctx;

}

#line 172 "cpp2regex.h2"

template<typename CharT, typename Iter, int max_groups> [[nodiscard]] auto make_forward_match_context(reverse_match_context<CharT,Iter,max_groups>& ctx) -> decltype(auto){

return *cpp2::impl::assert_not_null(ctx.forward_context);

}

#line 176 "cpp2regex.h2"

template<typename CharT, typename Iter, int max_groups> [[nodiscard]] auto make_reverse_match_context(match_context<CharT,Iter,max_groups>& ctx) -> auto{

return reverse_match_context<CharT,Iter,max_groups>(&ctx);

}

#line 180 "cpp2regex.h2"

template<typename CharT, typename Iter, int max_groups> [[nodiscard]] auto make_reverse_match_context(reverse_match_context<CharT,Iter,max_groups>& ctx) -> decltype(auto){

return ctx;

}

#line 186 "cpp2regex.h2"

template <typename Iter> [[nodiscard]] auto cpp2_make_forward_iterator(Iter const& pos) -> auto { return pos; }

#line 187 "cpp2regex.h2"

template<typename Iter> [[nodiscard]] auto cpp2_make_forward_iterator(std::reverse_iterator<Iter> const& pos) -> auto { return CPP2_UFCS(base)(pos); }

#line 188 "cpp2regex.h2"

template <typename Iter> [[nodiscard]] auto cpp2_make_reverse_iterator(Iter const& pos) -> auto { return std::make_reverse_iterator(pos); }

#line 189 "cpp2regex.h2"

template<typename Iter> [[nodiscard]] auto cpp2_make_reverse_iterator(std::reverse_iterator<Iter> const& pos) -> auto { return pos; }

#line 196 "cpp2regex.h2"

[[nodiscard]] auto true_end_func::operator()(auto const& cur, auto& ctx) const& -> decltype(auto) { return ctx.pass(cur); }

#line 204 "cpp2regex.h2"

auto no_reset::operator()([[maybe_unused]] auto& unnamed_param_2) const& -> void{}

#line 213 "cpp2regex.h2"

template <typename Func> on_return<Func>::on_return(Func const& f)

: func{ f }{

#line 215 "cpp2regex.h2"

}

#line 213 "cpp2regex.h2"

template <typename Func> auto on_return<Func>::operator=(Func const& f) -> on_return& {

func = f;

return *this;

#line 215 "cpp2regex.h2"

}

#line 217 "cpp2regex.h2"

template <typename Func> on_return<Func>::~on_return() noexcept{

cpp2::move(*this).func();

}

#line 224 "cpp2regex.h2"

template<typename Func> [[nodiscard]] auto make_on_return(Func const& func) -> decltype(auto) { return on_return<Func>(func); }

#line 238 "cpp2regex.h2"

template <typename CharT, CharT C> [[nodiscard]] auto single_class_entry<CharT,C>::includes(cpp2::impl::in<CharT> c) -> decltype(auto) { return c == C; }

#line 239 "cpp2regex.h2"

template <typename CharT, CharT C> [[nodiscard]] auto single_class_entry<CharT,C>::to_string() -> decltype(auto) { return bstring<CharT>(1, C); }

#line 247 "cpp2regex.h2"

template <typename CharT, CharT Start, CharT End> [[nodiscard]] auto range_class_entry<CharT,Start,End>::includes(cpp2::impl::in<CharT> c) -> decltype(auto) { return [_0 = Start, _1 = c, _2 = End]{ return cpp2::impl::cmp_less_eq(_0,_1) && cpp2::impl::cmp_less_eq(_1,_2); }(); }

#line 248 "cpp2regex.h2"

template <typename CharT, CharT Start, CharT End> [[nodiscard]] auto range_class_entry<CharT,Start,End>::to_string() -> decltype(auto) { return "" + cpp2::to_string(Start) + "-" + cpp2::to_string(End) + ""; }

#line 256 "cpp2regex.h2"

template <typename CharT, typename ...List> [[nodiscard]] auto combined_class_entry<CharT,List...>::includes(cpp2::impl::in<CharT> c) -> decltype(auto) { return (false || ... || List::includes(c)); }

#line 257 "cpp2regex.h2"

template <typename CharT, typename ...List> [[nodiscard]] auto combined_class_entry<CharT,List...>::to_string() -> decltype(auto) { return (bstring<CharT>() + ... + List::to_string()); }

#line 265 "cpp2regex.h2"

template <typename CharT, CharT ...List> [[nodiscard]] auto list_class_entry<CharT,List...>::includes(cpp2::impl::in<CharT> c) -> decltype(auto) { return (false || ... || (List == c)); }

#line 266 "cpp2regex.h2"

template <typename CharT, CharT ...List> [[nodiscard]] auto list_class_entry<CharT,List...>::to_string() -> decltype(auto) { return (bstring<CharT>() + ... + List); }

#line 274 "cpp2regex.h2"

template <typename CharT, string_util::fixed_string Name, typename Inner> [[nodiscard]] auto named_class_entry<CharT,Name,Inner>::includes(cpp2::impl::in<CharT> c) -> decltype(auto) { return Inner::includes(c); }

#line 275 "cpp2regex.h2"

template <typename CharT, string_util::fixed_string Name, typename Inner> [[nodiscard]] auto named_class_entry<CharT,Name,Inner>::to_string() -> decltype(auto) { return "[:" + cpp2::to_string(Name.data()) + ":]"; }

#line 282 "cpp2regex.h2"

template <typename CharT, typename Inner> [[nodiscard]] auto negated_class_entry<CharT,Inner>::includes(cpp2::impl::in<CharT> c) -> decltype(auto) { return !(Inner::includes(c)); }

#line 290 "cpp2regex.h2"

template <typename CharT, string_util::fixed_string Name, typename Inner> [[nodiscard]] auto shorthand_class_entry<CharT,Name,Inner>::includes(cpp2::impl::in<CharT> c) -> decltype(auto) { return Inner::includes(c); }

#line 291 "cpp2regex.h2"

template <typename CharT, string_util::fixed_string Name, typename Inner> [[nodiscard]] auto shorthand_class_entry<CharT,Name,Inner>::to_string() -> decltype(auto) { return Name.str(); }

#line 338 "cpp2regex.h2"

template <typename CharT> [[nodiscard]] auto alternative_token_matcher<CharT>::match(auto const& cur, auto& ctx, auto const& end_func, auto const& tail, auto const& ...functions) -> auto{

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