//
// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
//
// string -- variable-length, mutable run of text, with value semantics
//
// Author           : Michael L. Brooks
// Created On       : Fri Sep 03 11:00:00 2021
// Last Modified By : Michael L. Brooks
// Last Modified On : Fri Sep 03 11:00:00 2021
// Update Count     : 1
//

#pragma once

#include <fstream.hfa>


// in string_res.hfa
struct string_res;
struct charclass_res;

struct string {
    string_res * inner;
};

// Getters
size_t size(const string &s);

// RAII, assignment
void ?{}( string & this ); // empty string
void ?{}(string &s, const char* initial); // copy from string literal (NULL-terminated)
void ?{}(string &s, const char* buffer, size_t bsize); // copy specific length from buffer

void ?{}(string &s, const string & s2);
void ?{}(string &s, string & s2);

void ?=?(string &s, const char* other); // copy assignment from literal
void ?=?(string &s, const string &other);
void ?=?(string &s, char other);
string & ?=?(string &s, string &other);  // surprising ret seems to help avoid calls to autogen
//string ?=?( string &, string ) = void;
void ^?{}(string &s);

// Alternate construction: request shared edits
struct string_WithSharedEdits {
    string * s;
};
string_WithSharedEdits ?`shareEdits( string & this );
void ?{}( string & this, string_WithSharedEdits src );

// IO Operator
ofstream & ?|?(ofstream &out, const string &s);
void ?|?(ofstream &out, const string &s);

// Concatenation
void ?+=?(string &s, char other); // append a character
void ?+=?(string &s, const string &s2); // append-concatenate to first string
void ?+=?(string &s, const char* other); // append-concatenate to first string
string ?+?(const string &s, char other); // add a character to a copy of the string
string ?+?(const string &s, const string &s2); // copy and concatenate both strings
string ?+?(const char* s1, const char* s2); // concatenate both strings
string ?+?(const string &s, const char* other); // copy and concatenate with NULL-terminated string

// Repetition
string ?*?(const string &s, size_t factor);
string ?*?(char c, size_t size);
string ?*?(const char *s, size_t size);

// Character access
char ?[?](const string &s, size_t index);
string ?[?](string &s, size_t index);  // mutable length-1 slice of original
//char codePointAt(const string &s, size_t index);  // to revisit under Unicode

// Comparisons
bool ?==?(const string &s, const string &other);
bool ?!=?(const string &s, const string &other);
bool ?==?(const string &s, const char* other);
bool ?!=?(const string &s, const char* other);

// Slicing
string ?()( string & this, size_t start, size_t end );  // TODO const?
string ?()( string & this, size_t start);

// String search
bool contains(const string &s, char ch); // single character

int find(const string &s, char search);
int find(const string &s, const string &search);
int find(const string &s, const char* search);
int find(const string &s, const char* search, size_t searchsize);

bool includes(const string &s, const string &search);
bool includes(const string &s, const char* search);
bool includes(const string &s, const char* search, size_t searchsize);

bool startsWith(const string &s, const string &prefix);
bool startsWith(const string &s, const char* prefix);
bool startsWith(const string &s, const char* prefix, size_t prefixsize);

bool endsWith(const string &s, const string &suffix);
bool endsWith(const string &s, const char* suffix);
bool endsWith(const string &s, const char* suffix, size_t suffixsize);

// Modifiers
void padStart(string &s, size_t n);
void padStart(string &s, size_t n, char padding);
void padEnd(string &s, size_t n);
void padEnd(string &s, size_t n, char padding);



struct charclass {
    charclass_res * inner;
};

void ?{}( charclass & ) = void;
void ?{}( charclass &, charclass) = void;
charclass ?=?( charclass &, charclass) = void;

void ?{}( charclass &, const string & chars);
void ?{}( charclass &, const char * chars );
void ?{}( charclass &, const char * chars, size_t charssize );
void ^?{}( charclass & );

int include(const string &s, const charclass &mask);

int exclude(const string &s, const charclass &mask);

/*
What to do with?
StrRet include(string &s, const charclass &mask);
StrRet exclude(string &s, const charclass &mask);
*/