gtest-port.cc revision 190f8ee25a6977ac6eb71b816498df42f17ad9a7
17ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Copyright 2008, Google Inc. 27ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// All rights reserved. 37ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// 47ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Redistribution and use in source and binary forms, with or without 57ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// modification, are permitted provided that the following conditions are 67ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// met: 77ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// 87ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// * Redistributions of source code must retain the above copyright 97ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// notice, this list of conditions and the following disclaimer. 107ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// * Redistributions in binary form must reproduce the above 117ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// copyright notice, this list of conditions and the following disclaimer 127ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// in the documentation and/or other materials provided with the 137ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// distribution. 147ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// * Neither the name of Google Inc. nor the names of its 157ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// contributors may be used to endorse or promote products derived from 167ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// this software without specific prior written permission. 177ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// 187ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 197ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 207ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 217ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 227ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 237ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 247ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 257ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 267ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 277ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 287ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 297ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// 307ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Author: wan@google.com (Zhanyong Wan) 317ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 327ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman#include <gtest/internal/gtest-port.h> 337ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 347ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman#include <limits.h> 357ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman#include <stdlib.h> 367ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman#include <stdio.h> 377ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 38190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#if GTEST_OS_WINDOWS_MOBILE 39190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#include <windows.h> // For TerminateProcess() 40190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#elif GTEST_OS_WINDOWS 41e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#include <io.h> 42e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#include <sys/stat.h> 43e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#else 44e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#include <unistd.h> 45190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#endif // GTEST_OS_WINDOWS_MOBILE 46e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 47190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#if GTEST_OS_MAC 48190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#include <mach/mach_init.h> 49190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#include <mach/task.h> 50190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#include <mach/vm_map.h> 51190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#endif // GTEST_OS_MAC 527ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 537ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman#include <gtest/gtest-spi.h> 547ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman#include <gtest/gtest-message.h> 557ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman#include <gtest/internal/gtest-string.h> 567ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 57e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Indicates that this translation unit is part of Google Test's 58e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// implementation. It must come before gtest-internal-inl.h is 59e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// included, or there will be a compiler error. This trick is to 60e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// prevent a user from accidentally including gtest-internal-inl.h in 61e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// his code. 62e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#define GTEST_IMPLEMENTATION_ 1 63e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#include "gtest/internal/gtest-internal-inl.h" 64e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#undef GTEST_IMPLEMENTATION_ 657ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 667ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmannamespace testing { 677ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmannamespace internal { 687ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 69190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#if defined(_MSC_VER) || defined(__BORLANDC__) 70190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer// MSVC and C++Builder do not provide a definition of STDERR_FILENO. 71e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerconst int kStdErrFileno = 2; 72e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#else 73e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerconst int kStdErrFileno = STDERR_FILENO; 74190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#endif // _MSC_VER 75190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer 76190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#if GTEST_OS_MAC 77190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer 78190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer// Returns the number of threads running in the process, or 0 to indicate that 79190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer// we cannot detect it. 80190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramersize_t GetThreadCount() { 81190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer const task_t task = mach_task_self(); 82190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer mach_msg_type_number_t thread_count; 83190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer thread_act_array_t thread_list; 84190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer const kern_return_t status = task_threads(task, &thread_list, &thread_count); 85190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer if (status == KERN_SUCCESS) { 86190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer // task_threads allocates resources in thread_list and we need to free them 87190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer // to avoid leaks. 88190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer vm_deallocate(task, 89190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer reinterpret_cast<vm_address_t>(thread_list), 90190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer sizeof(thread_t) * thread_count); 91190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer return static_cast<size_t>(thread_count); 92190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer } else { 93190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer return 0; 94190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer } 95190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer} 96190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer 97190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#else 98190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer 99190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramersize_t GetThreadCount() { 100190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer // There's no portable way to detect the number of threads, so we just 101190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer // return 0 to indicate that we cannot detect it. 102190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer return 0; 103190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer} 104190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer 105190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#endif // GTEST_OS_MAC 106e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 107e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#if GTEST_USES_POSIX_RE 1087ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1097ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Implements RE. Currently only needed for death tests. 1107ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1117ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha BrukmanRE::~RE() { 1127ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman regfree(&partial_regex_); 1137ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman regfree(&full_regex_); 1147ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman free(const_cast<char*>(pattern_)); 1157ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 1167ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1177ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Returns true iff regular expression re matches the entire str. 1187ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanbool RE::FullMatch(const char* str, const RE& re) { 1197ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman if (!re.is_valid_) return false; 1207ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1217ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman regmatch_t match; 1227ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return regexec(&re.full_regex_, str, 1, &match, 0) == 0; 1237ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 1247ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1257ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Returns true iff regular expression re matches a substring of str 1267ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// (including str itself). 1277ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanbool RE::PartialMatch(const char* str, const RE& re) { 1287ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman if (!re.is_valid_) return false; 1297ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1307ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman regmatch_t match; 1317ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return regexec(&re.partial_regex_, str, 1, &match, 0) == 0; 1327ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 1337ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1347ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Initializes an RE from its string representation. 1357ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanvoid RE::Init(const char* regex) { 136190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer pattern_ = posix::StrDup(regex); 1377ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1387ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // Reserves enough bytes to hold the regular expression used for a 1397ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // full match. 1407ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const size_t full_regex_len = strlen(regex) + 10; 1417ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman char* const full_pattern = new char[full_regex_len]; 1427ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1437ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman snprintf(full_pattern, full_regex_len, "^(%s)$", regex); 1447ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman is_valid_ = regcomp(&full_regex_, full_pattern, REG_EXTENDED) == 0; 1457ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // We want to call regcomp(&partial_regex_, ...) even if the 1467ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // previous expression returns false. Otherwise partial_regex_ may 1477ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // not be properly initialized can may cause trouble when it's 1487ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // freed. 149e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // 150e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // Some implementation of POSIX regex (e.g. on at least some 151e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // versions of Cygwin) doesn't accept the empty string as a valid 152e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // regex. We change it to an equivalent form "()" to be safe. 153e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const char* const partial_regex = (*regex == '\0') ? "()" : regex; 154e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer is_valid_ = (regcomp(&partial_regex_, partial_regex, REG_EXTENDED) == 0) 155e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer && is_valid_; 1567ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman EXPECT_TRUE(is_valid_) 1577ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman << "Regular expression \"" << regex 1587ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman << "\" is not a valid POSIX Extended regular expression."; 1597ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1607ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman delete[] full_pattern; 1617ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 1627ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 163e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#elif GTEST_USES_SIMPLE_RE 164e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 165e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff ch appears anywhere in str (excluding the 166e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// terminating '\0' character). 167e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool IsInSet(char ch, const char* str) { 168e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return ch != '\0' && strchr(str, ch) != NULL; 169e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 170e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 171e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff ch belongs to the given classification. Unlike 172e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// similar functions in <ctype.h>, these aren't affected by the 173e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// current locale. 174e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool IsDigit(char ch) { return '0' <= ch && ch <= '9'; } 175e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool IsPunct(char ch) { 176e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return IsInSet(ch, "^-!\"#$%&'()*+,./:;<=>?@[\\]_`{|}~"); 177e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 178e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool IsRepeat(char ch) { return IsInSet(ch, "?*+"); } 179e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool IsWhiteSpace(char ch) { return IsInSet(ch, " \f\n\r\t\v"); } 180e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool IsWordChar(char ch) { 181e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return ('a' <= ch && ch <= 'z') || ('A' <= ch && ch <= 'Z') || 182e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ('0' <= ch && ch <= '9') || ch == '_'; 183e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 184e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 185e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff "\\c" is a supported escape sequence. 186e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool IsValidEscape(char c) { 187e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return (IsPunct(c) || IsInSet(c, "dDfnrsStvwW")); 188e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 189e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 190e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff the given atom (specified by escaped and pattern) 191e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// matches ch. The result is undefined if the atom is invalid. 192e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool AtomMatchesChar(bool escaped, char pattern_char, char ch) { 193e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (escaped) { // "\\p" where p is pattern_char. 194e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer switch (pattern_char) { 195e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 'd': return IsDigit(ch); 196e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 'D': return !IsDigit(ch); 197e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 'f': return ch == '\f'; 198e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 'n': return ch == '\n'; 199e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 'r': return ch == '\r'; 200e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 's': return IsWhiteSpace(ch); 201e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 'S': return !IsWhiteSpace(ch); 202e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 't': return ch == '\t'; 203e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 'v': return ch == '\v'; 204e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 'w': return IsWordChar(ch); 205e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 'W': return !IsWordChar(ch); 206e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 207e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return IsPunct(pattern_char) && pattern_char == ch; 208e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 209e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 210e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return (pattern_char == '.' && ch != '\n') || pattern_char == ch; 211e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 212e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 213e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Helper function used by ValidateRegex() to format error messages. 214e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin KramerString FormatRegexSyntaxError(const char* regex, int index) { 215e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return (Message() << "Syntax error at index " << index 216e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer << " in simple regular expression \"" << regex << "\": ").GetString(); 217e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 218e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 219e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Generates non-fatal failures and returns false if regex is invalid; 220e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// otherwise returns true. 221e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool ValidateRegex(const char* regex) { 222e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (regex == NULL) { 223e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // TODO(wan@google.com): fix the source file location in the 224e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // assertion failures to match where the regex is used in user 225e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // code. 226e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ADD_FAILURE() << "NULL is not a valid simple regular expression."; 227e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return false; 228e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 229e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 230e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer bool is_valid = true; 231e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 232e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // True iff ?, *, or + can follow the previous atom. 233e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer bool prev_repeatable = false; 234e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer for (int i = 0; regex[i]; i++) { 235e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (regex[i] == '\\') { // An escape sequence 236e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer i++; 237e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (regex[i] == '\0') { 238e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ADD_FAILURE() << FormatRegexSyntaxError(regex, i - 1) 239e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer << "'\\' cannot appear at the end."; 240e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return false; 241e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 242e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 243e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (!IsValidEscape(regex[i])) { 244e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ADD_FAILURE() << FormatRegexSyntaxError(regex, i - 1) 245e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer << "invalid escape sequence \"\\" << regex[i] << "\"."; 246e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer is_valid = false; 247e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 248e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer prev_repeatable = true; 249e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } else { // Not an escape sequence. 250e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const char ch = regex[i]; 251e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 252e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (ch == '^' && i > 0) { 253e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ADD_FAILURE() << FormatRegexSyntaxError(regex, i) 254e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer << "'^' can only appear at the beginning."; 255e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer is_valid = false; 256e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } else if (ch == '$' && regex[i + 1] != '\0') { 257e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ADD_FAILURE() << FormatRegexSyntaxError(regex, i) 258e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer << "'$' can only appear at the end."; 259e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer is_valid = false; 260e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } else if (IsInSet(ch, "()[]{}|")) { 261e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ADD_FAILURE() << FormatRegexSyntaxError(regex, i) 262e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer << "'" << ch << "' is unsupported."; 263e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer is_valid = false; 264e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } else if (IsRepeat(ch) && !prev_repeatable) { 265e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ADD_FAILURE() << FormatRegexSyntaxError(regex, i) 266e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer << "'" << ch << "' can only follow a repeatable token."; 267e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer is_valid = false; 268e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 269e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 270e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer prev_repeatable = !IsInSet(ch, "^$?*+"); 271e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 272e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 273e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 274e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return is_valid; 275e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 276e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 277e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Matches a repeated regex atom followed by a valid simple regular 278e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// expression. The regex atom is defined as c if escaped is false, 279e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// or \c otherwise. repeat is the repetition meta character (?, *, 280e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// or +). The behavior is undefined if str contains too many 281e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// characters to be indexable by size_t, in which case the test will 282e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// probably time out anyway. We are fine with this limitation as 283e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// std::string has it too. 284e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool MatchRepetitionAndRegexAtHead( 285e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer bool escaped, char c, char repeat, const char* regex, 286e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const char* str) { 287e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const size_t min_count = (repeat == '+') ? 1 : 0; 288e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const size_t max_count = (repeat == '?') ? 1 : 289e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer static_cast<size_t>(-1) - 1; 290e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // We cannot call numeric_limits::max() as it conflicts with the 291e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // max() macro on Windows. 292e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 293e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer for (size_t i = 0; i <= max_count; ++i) { 294e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // We know that the atom matches each of the first i characters in str. 295e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (i >= min_count && MatchRegexAtHead(regex, str + i)) { 296e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // We have enough matches at the head, and the tail matches too. 297e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // Since we only care about *whether* the pattern matches str 298e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // (as opposed to *how* it matches), there is no need to find a 299e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // greedy match. 300e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return true; 301e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 302e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (str[i] == '\0' || !AtomMatchesChar(escaped, c, str[i])) 303e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return false; 304e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 305e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return false; 306e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 307e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 308e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff regex matches a prefix of str. regex must be a 309e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// valid simple regular expression and not start with "^", or the 310e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// result is undefined. 311e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool MatchRegexAtHead(const char* regex, const char* str) { 312e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (*regex == '\0') // An empty regex matches a prefix of anything. 313e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return true; 314e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 315e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // "$" only matches the end of a string. Note that regex being 316e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // valid guarantees that there's nothing after "$" in it. 317e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (*regex == '$') 318e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return *str == '\0'; 319e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 320e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // Is the first thing in regex an escape sequence? 321e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const bool escaped = *regex == '\\'; 322e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (escaped) 323e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ++regex; 324e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (IsRepeat(regex[1])) { 325e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // MatchRepetitionAndRegexAtHead() calls MatchRegexAtHead(), so 326e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // here's an indirect recursion. It terminates as the regex gets 327e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // shorter in each recursion. 328e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return MatchRepetitionAndRegexAtHead( 329e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer escaped, regex[0], regex[1], regex + 2, str); 330e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } else { 331e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // regex isn't empty, isn't "$", and doesn't start with a 332e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // repetition. We match the first atom of regex with the first 333e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // character of str and recurse. 334e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return (*str != '\0') && AtomMatchesChar(escaped, *regex, *str) && 335e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer MatchRegexAtHead(regex + 1, str + 1); 336e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 337e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 338e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 339e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff regex matches any substring of str. regex must be 340e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// a valid simple regular expression, or the result is undefined. 341e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// 342e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// The algorithm is recursive, but the recursion depth doesn't exceed 343e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// the regex length, so we won't need to worry about running out of 344e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// stack space normally. In rare cases the time complexity can be 345e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// exponential with respect to the regex length + the string length, 346e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// but usually it's must faster (often close to linear). 347e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool MatchRegexAnywhere(const char* regex, const char* str) { 348e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (regex == NULL || str == NULL) 349e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return false; 350e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 351e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (*regex == '^') 352e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return MatchRegexAtHead(regex + 1, str); 353e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 354e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // A successful match can be anywhere in str. 355e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer do { 356e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (MatchRegexAtHead(regex, str)) 357e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return true; 358e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } while (*str++ != '\0'); 359e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return false; 360e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 361e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 362e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Implements the RE class. 363e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 364e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin KramerRE::~RE() { 365e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer free(const_cast<char*>(pattern_)); 366e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer free(const_cast<char*>(full_pattern_)); 367e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 368e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 369e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff regular expression re matches the entire str. 370e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool RE::FullMatch(const char* str, const RE& re) { 371e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return re.is_valid_ && MatchRegexAnywhere(re.full_pattern_, str); 372e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 373e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 374e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff regular expression re matches a substring of str 375e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// (including str itself). 376e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool RE::PartialMatch(const char* str, const RE& re) { 377e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return re.is_valid_ && MatchRegexAnywhere(re.pattern_, str); 378e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 379e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 380e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Initializes an RE from its string representation. 381e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramervoid RE::Init(const char* regex) { 382e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer pattern_ = full_pattern_ = NULL; 383e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (regex != NULL) { 384190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer pattern_ = posix::StrDup(regex); 385e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 386e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 387e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer is_valid_ = ValidateRegex(regex); 388e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (!is_valid_) { 389e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // No need to calculate the full pattern when the regex is invalid. 390e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return; 391e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 392e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 393e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const size_t len = strlen(regex); 394e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // Reserves enough bytes to hold the regular expression used for a 395e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // full match: we need space to prepend a '^', append a '$', and 396e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // terminate the string with '\0'. 397e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer char* buffer = static_cast<char*>(malloc(len + 3)); 398e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer full_pattern_ = buffer; 399e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 400e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (*regex != '^') 401e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer *buffer++ = '^'; // Makes sure full_pattern_ starts with '^'. 402e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 403e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // We don't use snprintf or strncpy, as they trigger a warning when 404e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // compiled with VC++ 8.0. 405e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer memcpy(buffer, regex, len); 406e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer buffer += len; 407e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 408e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (len == 0 || regex[len - 1] != '$') 409e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer *buffer++ = '$'; // Makes sure full_pattern_ ends with '$'. 410e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 411e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer *buffer = '\0'; 412e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 413e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 414e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#endif // GTEST_USES_POSIX_RE 4157ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 416190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer 417190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin KramerGTestLog::GTestLog(GTestLogSeverity severity, const char* file, int line) 418190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer : severity_(severity) { 4197ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const char* const marker = 4207ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman severity == GTEST_INFO ? "[ INFO ]" : 4217ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman severity == GTEST_WARNING ? "[WARNING]" : 4227ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman severity == GTEST_ERROR ? "[ ERROR ]" : "[ FATAL ]"; 423190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer GetStream() << ::std::endl << marker << " " 424190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer << FormatFileLocation(file, line).c_str() << ": "; 4257ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 4267ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 427190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer// Flushes the buffers and, if severity is GTEST_FATAL, aborts the program. 428190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin KramerGTestLog::~GTestLog() { 429190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer GetStream() << ::std::endl; 430190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer if (severity_ == GTEST_FATAL) { 431190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer fflush(stderr); 432190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer posix::Abort(); 433190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer } 434190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer} 435e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Disable Microsoft deprecation warnings for POSIX functions called from 436e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// this class (creat, dup, dup2, and close) 437e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#ifdef _MSC_VER 438e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#pragma warning(push) 439e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#pragma warning(disable: 4996) 440e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#endif // _MSC_VER 4417ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 4427ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Defines the stderr capturer. 4437ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 4447ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanclass CapturedStderr { 4457ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman public: 4467ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // The ctor redirects stderr to a temporary file. 4477ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman CapturedStderr() { 448190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#if GTEST_OS_WINDOWS_MOBILE 449190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer // Not supported on Windows CE. 450190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer posix::Abort(); 451190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#else 452e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer uncaptured_fd_ = dup(kStdErrFileno); 4537ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 454e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#if GTEST_OS_WINDOWS 455e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer char temp_dir_path[MAX_PATH + 1] = { '\0' }; // NOLINT 456e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer char temp_file_path[MAX_PATH + 1] = { '\0' }; // NOLINT 457e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 458e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ::GetTempPathA(sizeof(temp_dir_path), temp_dir_path); 459e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ::GetTempFileNameA(temp_dir_path, "gtest_redir", 0, temp_file_path); 460e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const int captured_fd = creat(temp_file_path, _S_IREAD | _S_IWRITE); 461e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer filename_ = temp_file_path; 462e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#else 4637ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // There's no guarantee that a test has write access to the 4647ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // current directory, so we create the temporary file in the /tmp 4657ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // directory instead. 4667ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman char name_template[] = "/tmp/captured_stderr.XXXXXX"; 4677ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const int captured_fd = mkstemp(name_template); 4687ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman filename_ = name_template; 469e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#endif // GTEST_OS_WINDOWS 4707ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman fflush(NULL); 471e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer dup2(captured_fd, kStdErrFileno); 4727ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman close(captured_fd); 473190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#endif // GTEST_OS_WINDOWS_MOBILE 4747ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 4757ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 4767ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman ~CapturedStderr() { 477190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#if !GTEST_OS_WINDOWS_MOBILE 4787ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman remove(filename_.c_str()); 479190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#endif // !GTEST_OS_WINDOWS_MOBILE 4807ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 4817ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 4827ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // Stops redirecting stderr. 4837ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman void StopCapture() { 484190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#if !GTEST_OS_WINDOWS_MOBILE 4857ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // Restores the original stream. 4867ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman fflush(NULL); 487e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer dup2(uncaptured_fd_, kStdErrFileno); 4887ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman close(uncaptured_fd_); 4897ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman uncaptured_fd_ = -1; 490190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#endif // !GTEST_OS_WINDOWS_MOBILE 4917ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 4927ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 4937ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // Returns the name of the temporary file holding the stderr output. 4947ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // GTEST_HAS_DEATH_TEST implies that we have ::std::string, so we 4957ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // can use it here. 4967ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman ::std::string filename() const { return filename_; } 4977ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 4987ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman private: 4997ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman int uncaptured_fd_; 5007ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman ::std::string filename_; 5017ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman}; 5027ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 503e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#ifdef _MSC_VER 504e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#pragma warning(pop) 505e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#endif // _MSC_VER 506e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 5077ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanstatic CapturedStderr* g_captured_stderr = NULL; 5087ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5097ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Returns the size (in bytes) of a file. 5107ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanstatic size_t GetFileSize(FILE * file) { 5117ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman fseek(file, 0, SEEK_END); 5127ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return static_cast<size_t>(ftell(file)); 5137ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 5147ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5157ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Reads the entire content of a file as a string. 516190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramerstatic String ReadEntireFile(FILE * file) { 5177ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const size_t file_size = GetFileSize(file); 5187ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman char* const buffer = new char[file_size]; 5197ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5207ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman size_t bytes_last_read = 0; // # of bytes read in the last fread() 5217ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman size_t bytes_read = 0; // # of bytes read so far 5227ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5237ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman fseek(file, 0, SEEK_SET); 5247ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5257ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // Keeps reading the file until we cannot read further or the 5267ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // pre-determined file size is reached. 5277ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman do { 5287ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman bytes_last_read = fread(buffer+bytes_read, 1, file_size-bytes_read, file); 5297ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman bytes_read += bytes_last_read; 5307ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } while (bytes_last_read > 0 && bytes_read < file_size); 5317ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 532190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer const String content(buffer, bytes_read); 5337ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman delete[] buffer; 5347ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5357ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return content; 5367ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 5377ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5387ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Starts capturing stderr. 5397ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanvoid CaptureStderr() { 5407ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman if (g_captured_stderr != NULL) { 541190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer GTEST_LOG_(FATAL) << "Only one stderr capturer can exist at one time."; 5427ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 5437ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman g_captured_stderr = new CapturedStderr; 5447ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 5457ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5467ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Stops capturing stderr and returns the captured string. 5477ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// GTEST_HAS_DEATH_TEST implies that we have ::std::string, so we can 5487ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// use it here. 549190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin KramerString GetCapturedStderr() { 5507ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman g_captured_stderr->StopCapture(); 551e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 552190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer FILE* const file = posix::FOpen(g_captured_stderr->filename().c_str(), "r"); 553190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer const String content = ReadEntireFile(file); 554190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer posix::FClose(file); 5557ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5567ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman delete g_captured_stderr; 5577ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman g_captured_stderr = NULL; 5587ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5597ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return content; 5607ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 5617ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 562e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#if GTEST_HAS_DEATH_TEST 563e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 5647ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// A copy of all command line arguments. Set by InitGoogleTest(). 5657ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman::std::vector<String> g_argvs; 5667ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5677ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Returns the command line as a vector of strings. 5687ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanconst ::std::vector<String>& GetArgvs() { return g_argvs; } 5697ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5707ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman#endif // GTEST_HAS_DEATH_TEST 5717ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 572190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#if GTEST_OS_WINDOWS_MOBILE 573190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramernamespace posix { 574190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramervoid Abort() { 5757ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman DebugBreak(); 5767ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman TerminateProcess(GetCurrentProcess(), 1); 5777ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 578190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer} // namespace posix 579190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#endif // GTEST_OS_WINDOWS_MOBILE 5807ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5817ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Returns the name of the environment variable corresponding to the 5827ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// given flag. For example, FlagToEnvVar("foo") will return 5837ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// "GTEST_FOO" in the open-source version. 5847ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanstatic String FlagToEnvVar(const char* flag) { 585e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const String full_flag = 586e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer (Message() << GTEST_FLAG_PREFIX_ << flag).GetString(); 5877ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5887ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman Message env_var; 589190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer for (size_t i = 0; i != full_flag.length(); i++) { 5907ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman env_var << static_cast<char>(toupper(full_flag.c_str()[i])); 5917ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 5927ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5937ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return env_var.GetString(); 5947ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 5957ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5967ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Parses 'str' for a 32-bit signed integer. If successful, writes 5977ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// the result to *value and returns true; otherwise leaves *value 5987ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// unchanged and returns false. 5997ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanbool ParseInt32(const Message& src_text, const char* str, Int32* value) { 6007ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // Parses the environment variable as a decimal integer. 6017ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman char* end = NULL; 6027ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const long long_value = strtol(str, &end, 10); // NOLINT 6037ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6047ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // Has strtol() consumed all characters in the string? 6057ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman if (*end != '\0') { 6067ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // No - an invalid character was encountered. 6077ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman Message msg; 6087ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman msg << "WARNING: " << src_text 6097ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman << " is expected to be a 32-bit integer, but actually" 6107ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman << " has value \"" << str << "\".\n"; 6117ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman printf("%s", msg.GetString().c_str()); 6127ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman fflush(stdout); 6137ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return false; 6147ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 6157ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6167ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // Is the parsed value in the range of an Int32? 6177ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const Int32 result = static_cast<Int32>(long_value); 6187ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman if (long_value == LONG_MAX || long_value == LONG_MIN || 6197ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // The parsed value overflows as a long. (strtol() returns 6207ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // LONG_MAX or LONG_MIN when the input overflows.) 6217ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman result != long_value 6227ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // The parsed value overflows as an Int32. 6237ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman ) { 6247ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman Message msg; 6257ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman msg << "WARNING: " << src_text 6267ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman << " is expected to be a 32-bit integer, but actually" 6277ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman << " has value " << str << ", which overflows.\n"; 6287ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman printf("%s", msg.GetString().c_str()); 6297ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman fflush(stdout); 6307ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return false; 6317ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 6327ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6337ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman *value = result; 6347ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return true; 6357ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 6367ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 637e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Reads and returns the Boolean environment variable corresponding to 638e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// the given flag; if it's not set, returns default_value. 639e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// 640e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// The value is considered true iff it's not "0". 641e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool BoolFromGTestEnv(const char* flag, bool default_value) { 642e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const String env_var = FlagToEnvVar(flag); 643190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer const char* const string_value = posix::GetEnv(env_var.c_str()); 644e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return string_value == NULL ? 645e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer default_value : strcmp(string_value, "0") != 0; 646e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 647e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 6487ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Reads and returns a 32-bit integer stored in the environment 6497ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// variable corresponding to the given flag; if it isn't set or 6507ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// doesn't represent a valid 32-bit integer, returns default_value. 6517ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha BrukmanInt32 Int32FromGTestEnv(const char* flag, Int32 default_value) { 6527ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const String env_var = FlagToEnvVar(flag); 653190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer const char* const string_value = posix::GetEnv(env_var.c_str()); 6547ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman if (string_value == NULL) { 6557ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // The environment variable is not set. 6567ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return default_value; 6577ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 6587ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6597ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman Int32 result = default_value; 6607ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman if (!ParseInt32(Message() << "Environment variable " << env_var, 6617ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman string_value, &result)) { 6627ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman printf("The default value %s is used.\n", 6637ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman (Message() << default_value).GetString().c_str()); 6647ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman fflush(stdout); 6657ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return default_value; 6667ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 6677ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6687ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return result; 6697ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 6707ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6717ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Reads and returns the string environment variable corresponding to 6727ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// the given flag; if it's not set, returns default_value. 6737ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanconst char* StringFromGTestEnv(const char* flag, const char* default_value) { 6747ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const String env_var = FlagToEnvVar(flag); 675190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer const char* const value = posix::GetEnv(env_var.c_str()); 6767ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return value == NULL ? default_value : value; 6777ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 6787ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6797ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} // namespace internal 6807ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} // namespace testing 681