560 lines
18 KiB
C++
560 lines
18 KiB
C++
/************************************************************************
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* string-operations.cpp - Demonstrates the functionality of FString *
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* *
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* This file is part of the Final Cut widget toolkit *
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* *
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* Copyright 2012-2017 Markus Gans *
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* *
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* The Final Cut is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* The Final Cut is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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************************************************************************/
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#include <langinfo.h>
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#include <unistd.h>
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#include <clocale>
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#include <iomanip>
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#include <string>
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#include <vector>
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#include <final/final.h>
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int main (int, char**)
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{
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printf ("----------------[ terminal ]-------------------\n");
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// init current locale
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printf (" Locale: %s\n", std::setlocale(LC_CTYPE, "") );
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if ( isatty(1) && ! std::strcmp(nl_langinfo(CODESET), "ANSI_X3.4-1968") )
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{
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// locale C -> switch from 7bit ascii -> latin1
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std::setlocale(LC_ALL, "C");
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}
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printf (" Codeset: %s\n", nl_langinfo(CODESET));
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std::cout << "--------------[ FString test ]-----------------"
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<< std::endl;
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// Test: input stream (operator >>)
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FString in;
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std::cout << " Input: ";
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std::cin >> in;
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std::cout << " instream >> " << in << std::endl;
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// Test: output stream (operator <<)
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const FString& out = L"A test string for 0 \x20ac";
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std::cout << " outstream << " << out << std::endl;
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// Test: Streaming into a FString (operator <<)...
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// ...from FStrings
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FString streamer1;
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streamer1 << FString("FStr") << FString("ing");
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std::cout << " stream in: " << streamer1 << std::endl;
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// ...from c++ wide string
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FString streamer2;
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streamer2 << std::wstring(L"std::wstring");
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std::cout << " stream in: " << streamer2 << std::endl;
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// ...from wide string
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FString streamer3;
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streamer3 << const_cast<wchar_t*>(L"wchar_t*");
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std::cout << " stream in: " << streamer3 << std::endl;
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// ...from c++ string
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FString streamer4;
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streamer4 << std::string("std::string");
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std::cout << " stream in: " << streamer4 << std::endl;
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// ...from c-string
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FString streamer5;
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streamer5 << const_cast<char*>("char*");
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std::cout << " stream in: " << streamer5 << std::endl;
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// ...from wide character
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FString streamer6;
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streamer6 << wchar_t(L'w');
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std::cout << " stream in: " << streamer6 << std::endl;
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// ...from character
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FString streamer7;
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streamer7 << char('c');
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std::cout << " stream in: " << streamer7 << std::endl;
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// ...from interger
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FString streamer8;
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streamer8 << int(-12345);
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std::cout << " stream in: " << streamer8 << std::endl;
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// ...from unsigned interger
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FString streamer9;
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streamer9 << uInt(54321);
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std::cout << " stream in: " << streamer9 << std::endl;
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// ...from long double
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FString streamer10;
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streamer10 << lDouble(0.333333333333333333L);
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std::cout << " stream in: " << streamer10 << std::endl;
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// ...from double
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FString streamer11;
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streamer11 << double(0.11111111111);
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std::cout << " stream in: " << streamer11 << std::endl;
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// ...from float
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FString streamer12;
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streamer12 << float(0.22222222);
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std::cout << " stream in: " << streamer12 << std::endl;
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// Test: Streaming from a FString (operator >>)...
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// ...to FStrings
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FString stream_fstring;
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FString("FString") >> stream_fstring;
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std::cout << "stream out: " << stream_fstring << std::endl;
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// ...to c++ wide string
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std::wstring stream_wstring;
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FString("std::wstring") >> stream_wstring;
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std::wcout << "stream out: " << stream_wstring << std::endl;
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// ...to wide character
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wchar_t stream_wchar_t = 0;
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FString("w") >> stream_wchar_t;
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std::wcout << "stream out: " << stream_wchar_t << std::endl;
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// ...to character
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char stream_char;
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FString('c') >> stream_char;
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std::cout << "stream out: " << stream_char << std::endl;
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// ...to interger
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try
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{
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int stream_int;
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FString("-321") >> stream_int;
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std::cout << "stream out: " << stream_int << std::endl;
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}
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catch (const std::invalid_argument& ex)
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{
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std::cerr << "Invalid argument: " << ex.what() << std::endl;
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}
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catch (const std::overflow_error& ex)
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{
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std::cerr << "overflow: " << ex.what() << std::endl;
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}
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catch (const std::exception& ex)
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{
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std::cerr << "Arithmetic error: " << ex.what() << std::endl;
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}
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// ...to unsigned interger
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try
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{
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uInt stream_uint;
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FString("123") >> stream_uint;
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std::cout << "stream out: " << stream_uint << std::endl;
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}
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catch (const std::invalid_argument& ex)
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{
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std::cerr << "Invalid argument: " << ex.what() << std::endl;
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}
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catch (const std::overflow_error& ex)
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{
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std::cerr << "overflow: " << ex.what() << std::endl;
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}
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catch (const std::exception& ex)
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{
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std::cerr << "Arithmetic error: " << ex.what() << std::endl;
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}
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// ...to double
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try
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{
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double stream_double;
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FString("0.123456e+2") >> stream_double;
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std::cout << "stream out: " << stream_double << std::endl;
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}
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catch (const std::invalid_argument& ex)
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{
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std::cerr << "Invalid argument: " << ex.what() << std::endl;
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}
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catch (const std::exception& ex)
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{
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std::cerr << "Arithmetic error: " << ex.what() << std::endl;
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}
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// ...to float
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try
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{
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float stream_float;
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FString("0.123e-3") >> stream_float;
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std::cout << "stream out: " << stream_float << std::endl;
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}
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catch (const std::invalid_argument& ex)
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{
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std::cerr << "Invalid argument: " << ex.what() << std::endl;
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}
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catch (const std::exception& ex)
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{
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std::cerr << "Arithmetic error: " << ex.what() << std::endl;
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}
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// Test: c-string output
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printf (" c_str: \"%s\"\n", out.c_str());
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// Test: copy a c++ string
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const FString& cpp_str( std::string("c++ String") );
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std::cout << " cpp_str: \"" << cpp_str << "\"" << std::endl;
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// Test: copy a character
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const FString ch('c');
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std::cout << " char: '" << ch << "'" << std::endl;
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// Test: copy a wide character
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const FString wch(L'w');
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std::cout << " wchar_t: '" << wch << "'" << std::endl;
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// Test: utf-8 string
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const FString& len = "длина́";
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std::cout << " length: \"" << len << "\" has "
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<< len.getLength() << " characters" << std::endl;
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// Test: convert uppercase letter to lowercase
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const FString& lower = FString(L"InPut").toLower();
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std::wcout << L" toLower: " << lower << std::endl;
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// Test: convert lowercase letter to uppercase
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const FString& upper = FString("inPut").toUpper();
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std::cout << " toUpper: " << upper << std::endl;
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// Test: concatenate two FStrings (operator +)
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const FString& add1 = FString("FString + ") + FString("FString");
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std::cout << " add: " << add1 << std::endl;
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// Test: concatenate a FString and a c++ wide string (operator +)
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const FString& add2 = FString("FString + ")
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+ std::wstring(L"std::wstring");
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std::cout << " add: " << add2 << std::endl;
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// Test: concatenate a FString and a wide string (operator +)
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const FString& add3 = FString("FString + ")
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+ const_cast<wchar_t*>(L"wchar_t*");
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std::cout << " add: " << add3 << std::endl;
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// Test: concatenate a FString and a c++ string (operator +)
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const FString& add4 = FString("FString + ")
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+ std::string("std::string");
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std::cout << " add: " << add4 << std::endl;
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// Test: concatenate a FString and a c-string (operator +)
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const FString& add5 = FString("FString + ")
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+ const_cast<char*>("char*");
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std::cout << " add: " << add5 << std::endl;
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// Test: concatenate a FString and a wide character (operator +)
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const FString& add6 = FString("FString + ") + wchar_t(L'w');
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std::cout << " add: " << add6 << std::endl;
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// Test: concatenate a FString and a character (operator +)
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const FString& add7 = FString("FString + ") + char('c');
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std::cout << " add: " << add7 << std::endl;
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// Test: concatenate a character and a FString (operator +)
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const FString& add8 = 'c' + FString(" + FString");
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std::cout << " add: " << add8 << std::endl;
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// Test: concatenate a wide character and a FString (operator +)
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const FString& add9 = L'w' + FString(" + FString");
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std::cout << " add: " << add9 << std::endl;
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// Test: concatenate a c-string and a FString (operator +)
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const FString& add10 = const_cast<char*>("char*")
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+ FString(" + FString");
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std::cout << " add: " << add10 << std::endl;
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// Test: concatenate a c++ string and a FString (operator +)
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const FString& add11 = std::string("std::string")
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+ FString(" + FString");
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std::cout << " add: " << add11 << std::endl;
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// Test: concatenate a wide string and a FString (operator +)
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const FString& add12 = const_cast<wchar_t*>(L"wchar_t*")
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+ FString(" + FString");
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std::cout << " add: " << add12 << std::endl;
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// Test: concatenate a c++ wide string and a FString (operator +)
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const FString& add13 = std::wstring(L"std::wstring")
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+ FString(" + FString");
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std::cout << " add: " << add13 << std::endl;
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// Test: compare operators ==, <=, <, >=, >, !=
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const FString& cmp = "compare";
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if ( cmp == FString("compare") )
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std::cout << " cmp: == Ok" << std::endl;
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else
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std::cout << " cmp: == Not Ok" << std::endl;
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if ( cmp <= FString("d_compare") )
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std::cout << " cmp: <= Ok" << std::endl;
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else
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std::cout << " cmp: <= Not Ok" << std::endl;
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if ( cmp < FString("e_compare") )
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std::cout << " cmp: < Ok" << std::endl;
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else
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std::cout << " cmp: < Not Ok" << std::endl;
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if ( cmp >= FString("b_compare") )
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std::cout << " cmp: >= Ok" << std::endl;
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else
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std::cout << " cmp: >= Not Ok" << std::endl;
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if ( cmp > FString("a_compare") )
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std::cout << " cmp: > Ok" << std::endl;
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else
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std::cout << " cmp: > Not Ok" << std::endl;
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if ( cmp != FString("equal") )
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std::cout << " cmp: != Ok" << std::endl;
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else
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std::cout << " cmp: != Not Ok" << std::endl;
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// Test: split a string with a delimiter and returns a vector (array)
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FString split_str = "a,b,c,d";
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std::cout << " split: \""
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<< split_str << "\" into substrings ->";
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FStringList parts = split_str.split(",");
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FStringList::iterator it, end;
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end = parts.end();
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for (it = parts.begin(); it != end; ++it)
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std::cout << " \"" << (*it) << "\"";
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std::cout << std::endl;
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// Test: format a string with sprintf
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FString formatStr = "";
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std::cout << " formatted: "
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<< formatStr.sprintf("sqrt(%d) = %d", 16, 4)
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<< std::endl;
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// Test: convert a string to a unsigned long interger
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try
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{
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const uLong ulong_num = FString("123456789").toULong();
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std::cout << " toULong: " << ulong_num << std::endl;
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}
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catch (const std::invalid_argument& ex)
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{
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std::cerr << "Invalid argument: " << ex.what() << std::endl;
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}
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catch (const std::exception& ex)
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{
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std::cerr << "Arithmetic error: " << ex.what() << std::endl;
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}
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// Test: convert a string to a signed long interger
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try
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{
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const long long_num = FString("-9876543210").toLong();
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std::cout << " toLong: " << long_num << std::endl;
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}
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catch (const std::invalid_argument& ex)
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{
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std::cerr << "Invalid argument: " << ex.what() << std::endl;
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}
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catch (const std::exception& ex)
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{
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std::cerr << "Arithmetic error: " << ex.what() << std::endl;
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}
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// Test: convert a string to a double value
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std::setlocale(LC_NUMERIC, "C");
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try
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{
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const double double_num = FString("2.7182818284590452353").toDouble();
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std::ios_base::fmtflags save_flags = std::cout.flags();
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std::cout << " toDouble: " << std::setprecision(11)
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<< double_num << std::endl;
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std::cout.flags(save_flags);
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}
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catch (const std::invalid_argument& ex)
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{
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std::cerr << "Invalid argument: " << ex.what() << std::endl;
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}
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catch (const std::exception& ex)
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{
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std::cerr << "Arithmetic error: " << ex.what() << std::endl;
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}
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// Test: convert integer and double value to a string
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FString num1, num2, num3;
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num1.setNumber(137);
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num2.setNumber(-512);
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num3.setNumber(3.141592653589793238L, 12);
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std::cout << " setNumber: "
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<< num1 << " (unsigned)" << std::endl;
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std::cout << " setNumber: "
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<< num2 << " (signed)" << std::endl;
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std::cout << " setNumber: "
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<< num3 << " (long double)" << std::endl;
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// Test: convert and format a integer number with thousand separator
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std::setlocale (LC_NUMERIC, "");
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FString fnum1, fnum2;
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#if defined(__LP64__) || defined(_LP64)
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// 64-bit architecture
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fnum1.setFormatedNumber(0xffffffffffffffff, '\'');
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fnum2.setFormatedNumber(-9223372036854775807);
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#else
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// 32-bit architecture
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fnum1.setFormatedNumber(0xffffffff, '\'');
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fnum2.setFormatedNumber(-2147483647);
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#endif
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std::cout << "setFormatedNumber: "
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<< fnum1 << " (unsigned)" << std::endl;
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std::cout << "setFormatedNumber: "
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<< fnum2 << " (signed)" << std::endl;
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// Test: remove whitespace from the end of a string
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const FString& trim_str = " A string \t";
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std::wcout << " rtrim: \""
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<< trim_str.rtrim() << "\"" << std::endl;
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// Test: remove whitespace from the beginning of a string
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std::cout << " ltrim: \""
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<< trim_str.ltrim() << "\"" << std::endl;
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// Test: remove whitespace from the beginning and end of a string
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std::cout << " trim: \""
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<< trim_str.trim() << "\"" << std::endl;
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// Test: 11 characters from the left of the string
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const FString& alphabet = "a b c d e f g h i j k l m n o p q r s t u v w x y z";
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std::cout << " left: \""
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<< alphabet.left(11) << "\"" << std::endl;
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// Test: extract a substring of 27 characters from position 12
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std::cout << " mid: \""
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<< alphabet.mid(13, 27) << "\"" << std::endl;
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// Test: 11 characters from the right of the string
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std::cout << " right: \""
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<< alphabet.right(11) << "\"" << std::endl;
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// Test: insert a string at index position 7
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FString insert_str = "I am a string";
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try
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{
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std::cout << " insert: "
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<< insert_str.insert("changed ", 7) << std::endl;
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}
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catch (const std::out_of_range& ex)
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{
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std::cerr << "Out of Range error: " << ex.what() << std::endl;
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}
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// Test: get character access at a specified index position
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FString index(5); // string with five characters
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index = "index";
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try
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{
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index[0] = L'I'; // write a wide character at position 0
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printf ( " index: [0] = %c ; [4] = %c\n"
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, char(index[0])
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, char(index[4]) );
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}
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catch (const std::out_of_range& ex)
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{
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std::cerr << "Out of Range error: " << ex.what() << std::endl;
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}
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// Test: character access with std::iterator
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const FString& stringIterator = "iterator";
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FString::iterator iter;
|
|
iter = stringIterator.begin();
|
|
std::cout << " " << stringIterator << ": ";
|
|
|
|
while ( iter != stringIterator.end() )
|
|
{
|
|
std::cout << char(*iter) << "|";
|
|
++iter;
|
|
}
|
|
|
|
std::cout << " (front='" << char(stringIterator.front())
|
|
<< "', back='" << char(stringIterator.back())
|
|
<< "')" << std::endl;
|
|
|
|
// Test: overwrite string at position 10 with "for t"
|
|
FString overwrite_std = "Overwrite the rest";
|
|
std::cout << "overwrite: "
|
|
<< overwrite_std.overwrite("for t", 10) << std::endl;
|
|
|
|
// Test: remove 2 characters at position 7
|
|
FString remove_std = "A fast remove";
|
|
std::cout << " remove: "
|
|
<< remove_std.remove(7, 2) << std::endl;
|
|
|
|
// Test: includes a substring (positive test)
|
|
FString include_std = "string";
|
|
|
|
if ( include_std.includes("ring") )
|
|
std::cout << " includes: \""
|
|
<< include_std << "\" includes \"ring\" "
|
|
<< std::endl;
|
|
else
|
|
std::cout << " includes: \""
|
|
<< include_std << "\" includes no \"ring\" "
|
|
<< std::endl;
|
|
|
|
// Test: includes a substring (negativ test)
|
|
if ( include_std.includes("data") )
|
|
std::cout << " includes: \""
|
|
<< include_std << "\" includes \"data\" "
|
|
<< std::endl;
|
|
else
|
|
std::cout << " includes: \""
|
|
<< include_std << "\" includes no \"data\" "
|
|
<< std::endl;
|
|
|
|
// Test: find and replace a substring
|
|
FString source_str = "computer and software";
|
|
const FString& replace_str = source_str.replace("computer", "hard-");
|
|
std::cout << " replace: "
|
|
<< replace_str << std::endl;
|
|
|
|
// Test: convert tabs to spaces
|
|
const FString& tab_str = "1234\t5678";
|
|
std::cout << " tab: "
|
|
<< tab_str.expandTabs() << std::endl;
|
|
|
|
// Test: backspaces remove characters in the string
|
|
const FString& bs_str = "t\b\bTesT\bt";
|
|
std::cout << "backspace: "
|
|
<< bs_str.removeBackspaces() << std::endl;
|
|
|
|
// Test: delete characters remove characters in the string
|
|
const FString& del_str = "apple \177\177\177pietree";
|
|
std::cout << " delete: "
|
|
<< del_str.removeDel() << std::endl;
|
|
}
|