#include #include #include #include #define ERR_COUNT 5 const char* g_ch = "abcdefghijklmnopqrstuvwxyz"; const char* g_CH = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; int GetRandomNumber(int nMinRange, int nMaxRange) { std::random_device gen; std::uniform_int_distribution dist(nMinRange, nMaxRange); return dist(gen); } bool IsPossible(double dPossibility) { if ( 10000 * dPossibility > GetRandomNumber(1, 10000) ) { return true; } return false; } // Error case // 0. _시작 // 1. _끝 // 2. __ 등장 // 3. 맨 앞 대문자 // 4. 대문자 + _ void ErrorGenerator(bool* err, int nSize) { for (int i = 0; i < nSize; i++) { if (IsPossible(0.2)) { err[i] = true; } } } std::string GenerateJava(int nLen, bool* err) { //대,소문자만 + 맨 앞은 소문자 std::string JavaWord; for (int i = 0; i < nLen; i++) { char ch = g_ch[GetRandomNumber(0, 25)]; if (IsPossible(0.3)) ch = g_CH[GetRandomNumber(0, 25)]; if (IsPossible(0.3) && err[2]) { ch = '_'; JavaWord += ch; i++; } JavaWord += ch; } if (err[3]) { if ('a' <= JavaWord[0] && 'z' >= JavaWord[0]) { JavaWord[0] += ('A' - 'a'); } } return JavaWord; } std::string GenerateCpp(int nLen, bool* err) { //소문자 + '_' 만, 맨 앞은 소문자 std::string CppWord; for (int i = 0; i < nLen; i++) { char ch = g_ch[GetRandomNumber(0, 25)]; if ( !CppWord.empty() && CppWord.back() != '_') { if (IsPossible(0.2)) ch = '_'; } if (IsPossible(0.3) && err[2]) { ch = '_'; CppWord += ch; i++; } CppWord += ch; } if (err[3]) { if ('a' <= CppWord[0] && 'z' >= CppWord[0]) { CppWord[0] += ('A' - 'a'); } } return CppWord; } int main() { // 길이 int nLen = GetRandomNumber(1, 100); // _ 추가 확률 std::random_device gen_; std::uniform_int_distribution dist_(0, nLen); int n_ = dist_(gen_); // 대문자 확률 std::random_device genUpper; std::uniform_int_distribution distUpper(0, 9); bool err[ERR_COUNT] = { false, }; if (IsPossible(0.3)) ErrorGenerator(err, ERR_COUNT); //printf("[%d] [%d][%d][%d][%d][%d]\n\n", nLen, err[0], err[1], err[2], err[3], err[4]); int errLen = (int)err[0] + (int)err[1]; //'_' 시작 + '_' 끝 int nWordLen = errLen; std::string words; if (IsPossible(0.5)) { words = GenerateJava(nLen - errLen, err); } else { words = GenerateCpp(nLen - errLen, err); } if (err[0]) { words = '_' + words; } if (err[1]) { words = words + '_'; } printf("%s\n", words.c_str()); return 0; }

코드 #1164