{

string str("readme.txt");

if (ends_with(str, "txt"))

{

cout << to_upper_copy(str) + " UPPER" << endl;

assert(ends_with(str, "txt"));

}

replace_first(str, "readme", "followme");

cout << str << endl;

vector<char> v(str.begin(), str.end());

vector<char> v2 = to_upper_copy(

erase_first_copy(v, "txt"));

for (auto ch : v2)

{ cout << ch; }

{

string str("FireEmblem Heroes\n");

cout << to_upper_copy(str);

cout << str;

to_lower(str);

cout << str;

{

string str("Power Bomb");

assert(iends_with(str, "bomb"));

assert(!ends_with(str, "bomb"));

assert(starts_with(str, "Pow"));

assert(contains(str, "er"));

string str2 = to_lower_copy(str);

assert(iequals(str, str2));

string str3("power suit");

assert(ilexicographical_compare(str, str3));

assert(all(str2.substr(0, 5), is_lower()));

{

string str1("Samus"), str2("samus");

assert(!is_equal()(str1, str2));

assert( is_less()(str1, str2));

//cout << (to_upper_copy(str1) == to_upper_copy(str2)) << endl;

//cout << is_iequal()(str1, str2) << endl;

assert(!is_equal()(str1, string_ref(str2)));

{

bool operator()(char x)

{ return x == '0' || x == '1';}

{

format fmt("|%s|\n");

string str = " samus aran ";

cout << fmt % trim_copy(str);

cout << fmt % trim_left_copy(str);

trim_right(str);

cout << fmt % str;

string str2 = "2015 Happy new Year!!!";

cout << fmt % trim_left_copy_if(str2, is_digit());

cout << fmt % trim_right_copy_if(str2, is_punct());

cout << fmt % trim_copy_if(str2,

is_punct() || is_digit() || is_space());

{

format fmt("|%s|. pos = %d\n");

string str = "Long long ago, there was a king.";

iterator_range<string::iterator> rge;

rge = find_first(str, "long");

cout << fmt % rge % (rge.begin() - str.begin());

rge = ifind_first(str, "long");

cout << fmt % rge % (rge.begin() - str.begin());

rge = find_nth(str, "ng", 2);

cout << fmt % rge % (rge.begin() - str.begin());

rge = find_head(str, 4);

cout << fmt % rge % (rge.begin() - str.begin());

rge = find_tail(str, 5);

cout << fmt % rge % (rge.begin() - str.begin());

rge = find_first(str, "samus");

assert(rge.empty() && !rge);

{

string str = "Samus beat the monster.\n";

cout << replace_first_copy(str, "Samus", "samus");

replace_last(str, "beat", "kill");

cout << str;

replace_tail(str, 9, "ridley.\n");

cout << str;

cout << ierase_all_copy(str, "samus");

cout << replace_nth_copy(str, "l", 1, "L");

cout << erase_tail_copy(str, 8);

{

string str = "Samus,Link.Zelda::Mario-Luigi+zelda";

deque<string> d;

ifind_all(d, str, "zELDA");

assert(d.size() == 2);

for (auto x : d)

{ cout << "["<< x << "] "; }

cout << endl;

list<iterator_range<string::iterator> > l;

split(l, str, is_any_of(",.:-+"));

for (auto x : l)

{ cout << "["<< x << "]"; }

cout << endl;

l.clear();

split(l, str, is_any_of(".:-"), token_compress_on);

for (auto x : l)

{ cout << "["<< x << "]"; }

cout << endl;

{

using namespace boost::assign;

vector<string> v = list_of("Samus")("Link")("Zelda")("Mario");

cout << join(v, "+") << endl;

//cout << join_if(v, "**", is_contains_a());

cout << join_if(v, "**",

[](string_ref s)

{ return contains(s, "a"); }

);

cout << endl;

{

string str("Samus||samus||mario||||Link");

//typedef find_iterator<string::iterator> string_find_iterator;

//string_find_iterator pos, end;

//for (pos = make_find_iterator(str, first_finder("samus", is_iequal()));

// pos != end; ++pos)

//{ cout << "[" << *pos << "]" ; }

auto pos = make_find_iterator(str, first_finder("samus", is_iequal()));

decltype(pos) end;

for(; pos != end; ++pos)

{ cout << "[" << *pos << "]" ; }

cout << endl;

typedef split_iterator<string::iterator> string_split_iterator;

string_split_iterator p, endp;

for (p = make_split_iterator(str, first_finder("||", is_iequal()));

p != endp; ++p)

{ cout << "[" << *p << "]" ; }

cout << endl;

{

case1();

case2();

case3();

case4();

case5();

case6();

case7();

case8();

case9();

case10();