#include "../../source/utf8.h" using namespace utf8; #include #include #include #include using namespace std; int main(int argc, char** argv) { if (argc != 2) { cout << "\nUsage: utfreader filename\n"; return 0; } const char* TEST_FILE_PATH = argv[1]; // Open the test file ifstream fs8(TEST_FILE_PATH); if (!fs8.is_open()) { cout << "Could not open " << TEST_FILE_PATH << endl; return 0; } // Read it line by line unsigned int line_count = 0; char byte; while (!fs8.eof()) { string line; while ((byte = static_cast(fs8.get())) != '\n' && !fs8.eof()) line.push_back(byte); line_count++; // Play around with each line and convert it to utf16 string::iterator line_start = line.begin(); string::iterator line_end = line.end(); line_end = find_invalid(line_start, line_end); if (line_end != line.end()) cout << "Line " << line_count << ": Invalid utf-8 at byte " << int(line.end() - line_end) << '\n'; // Convert it to utf-16 and write to the file vector utf16_line; utf8to16(line_start, line_end, back_inserter(utf16_line)); // Back to utf-8 and compare it to the original line. string back_to_utf8; utf16to8(utf16_line.begin(), utf16_line.end(), back_inserter(back_to_utf8)); if (back_to_utf8.compare(string(line_start, line_end)) != 0) cout << "Line " << line_count << ": Conversion to UTF-16 and back failed" << '\n'; // Now, convert it to utf-32, back to utf-8 and compare vector utf32_line; utf8to32(line_start, line_end, back_inserter(utf32_line)); back_to_utf8.clear(); utf32to8(utf32_line.begin(), utf32_line.end(), back_inserter(back_to_utf8)); if (back_to_utf8.compare(string(line_start, line_end)) != 0) cout << "Line " << line_count << ": Conversion to UTF-32 and back failed" << '\n'; // Now, iterate and back unsigned char_count = 0; string::iterator it = line_start; while (it != line_end) { next(it, line_end); char_count++; } if (char_count != utf32_line.size()) cout << "Line " << line_count << ": Error in iterating with next - wrong number of characters" << '\n'; string::iterator adv_it = line_start; utf8::advance(adv_it, char_count, line_end); if (adv_it != line_end) cout << "Line " << line_count << ": Error in advance function" << '\n'; if (string::size_type(utf8::distance(line_start, line_end)) != char_count) cout << "Line " << line_count << ": Error in distance function" << '\n'; while (it != line_start) { previous(it, line.rend().base()); char_count--; } if (char_count != 0) cout << "Line " << line_count << ": Error in iterating with previous - wrong number of characters" << '\n'; //======================== Now, the unchecked versions ====================== // Convert it to utf-16 and compare to the checked version vector utf16_line_unchecked; unchecked::utf8to16(line_start, line_end, back_inserter(utf16_line_unchecked)); if (utf16_line != utf16_line_unchecked) cout << "Line " << line_count << ": Error in unchecked::utf8to16" << '\n'; // Back to utf-8 and compare it to the original line. back_to_utf8.clear(); unchecked::utf16to8(utf16_line_unchecked.begin(), utf16_line_unchecked.end(), back_inserter(back_to_utf8)); if (back_to_utf8.compare(string(line_start, line_end)) != 0) cout << "Line " << line_count << ": Unchecked conversion to UTF-16 and back failed" << '\n'; // Now, convert it to utf-32, back to utf-8 and compare vector utf32_line_unchecked; unchecked::utf8to32(line_start, line_end, back_inserter(utf32_line_unchecked)); if (utf32_line != utf32_line_unchecked) cout << "Line " << line_count << ": Error in unchecked::utf8to32" << '\n'; back_to_utf8.clear(); unchecked::utf32to8(utf32_line.begin(), utf32_line.end(), back_inserter(back_to_utf8)); if (back_to_utf8.compare(string(line_start, line_end)) != 0) cout << "Line " << line_count << ": Unchecked conversion to UTF-32 and back failed" << '\n'; // Now, iterate and back char_count = 0; it = line_start; while (it != line_end) { unchecked::next(it); char_count++; } if (char_count != utf32_line.size()) cout << "Line " << line_count << ": Error in iterating with unchecked::next - wrong number of characters" << '\n'; adv_it = line_start; utf8::unchecked::advance(adv_it, char_count); if (adv_it != line_end) cout << "Line " << line_count << ": Error in unchecked::advance function" << '\n'; if (string::size_type(utf8::unchecked::distance(line_start, line_end)) != char_count) cout << "Line " << line_count << ": Error in unchecked::distance function" << '\n'; while (it != line_start) { unchecked::previous(it); char_count--; } if (char_count != 0) cout << "Line " << line_count << ": Error in iterating with unchecked::previous - wrong number of characters" << '\n'; } }