111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Copyright 2008, Google Inc. 211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// All rights reserved. 311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Redistribution and use in source and binary forms, with or without 511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// modification, are permitted provided that the following conditions are 611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// met: 711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// * Redistributions of source code must retain the above copyright 911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// notice, this list of conditions and the following disclaimer. 1011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// * Redistributions in binary form must reproduce the above 1111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// copyright notice, this list of conditions and the following disclaimer 1211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// in the documentation and/or other materials provided with the 1311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// distribution. 1411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// * Neither the name of Google Inc. nor the names of its 1511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// contributors may be used to endorse or promote products derived from 1611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// this software without specific prior written permission. 1711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 1811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 2011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 3011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Author: wan@google.com (Zhanyong Wan) 3111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include "gtest/internal/gtest-port.h" 3311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <limits.h> 3511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <stdlib.h> 3611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <stdio.h> 3711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <string.h> 3811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if GTEST_OS_WINDOWS_MOBILE 4011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# include <windows.h> // For TerminateProcess() 4111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#elif GTEST_OS_WINDOWS 4211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# include <io.h> 4311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# include <sys/stat.h> 4411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#else 4511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# include <unistd.h> 4611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif // GTEST_OS_WINDOWS_MOBILE 4711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if GTEST_OS_MAC 4911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# include <mach/mach_init.h> 5011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# include <mach/task.h> 5111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# include <mach/vm_map.h> 5211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif // GTEST_OS_MAC 5311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if GTEST_OS_QNX 5511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# include <devctl.h> 5611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# include <sys/procfs.h> 5711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif // GTEST_OS_QNX 5811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include "gtest/gtest-spi.h" 6011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include "gtest/gtest-message.h" 6111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include "gtest/internal/gtest-internal.h" 6211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include "gtest/internal/gtest-string.h" 6311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Indicates that this translation unit is part of Google Test's 6511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// implementation. It must come before gtest-internal-inl.h is 6611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// included, or there will be a compiler error. This trick is to 6711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// prevent a user from accidentally including gtest-internal-inl.h in 6811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// his code. 6911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define GTEST_IMPLEMENTATION_ 1 7011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include "src/gtest-internal-inl.h" 7111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#undef GTEST_IMPLEMENTATION_ 7211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertnamespace testing { 7411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertnamespace internal { 7511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if defined(_MSC_VER) || defined(__BORLANDC__) 7711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// MSVC and C++Builder do not provide a definition of STDERR_FILENO. 7811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertconst int kStdOutFileno = 1; 7911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertconst int kStdErrFileno = 2; 8011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#else 8111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertconst int kStdOutFileno = STDOUT_FILENO; 8211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertconst int kStdErrFileno = STDERR_FILENO; 8311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif // _MSC_VER 8411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 8511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if GTEST_OS_MAC 8611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 8711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Returns the number of threads running in the process, or 0 to indicate that 8811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// we cannot detect it. 8911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertsize_t GetThreadCount() { 9011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const task_t task = mach_task_self(); 9111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert mach_msg_type_number_t thread_count; 9211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert thread_act_array_t thread_list; 9311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const kern_return_t status = task_threads(task, &thread_list, &thread_count); 9411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (status == KERN_SUCCESS) { 9511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // task_threads allocates resources in thread_list and we need to free them 9611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // to avoid leaks. 9711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert vm_deallocate(task, 9811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert reinterpret_cast<vm_address_t>(thread_list), 9911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert sizeof(thread_t) * thread_count); 10011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return static_cast<size_t>(thread_count); 10111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } else { 10211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return 0; 10311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 10411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 10511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 10611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#elif GTEST_OS_QNX 10711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 10811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Returns the number of threads running in the process, or 0 to indicate that 10911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// we cannot detect it. 11011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertsize_t GetThreadCount() { 11111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const int fd = open("/proc/self/as", O_RDONLY); 11211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (fd < 0) { 11311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return 0; 11411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 11511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert procfs_info process_info; 11611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const int status = 11711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert devctl(fd, DCMD_PROC_INFO, &process_info, sizeof(process_info), NULL); 11811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert close(fd); 11911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (status == EOK) { 12011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return static_cast<size_t>(process_info.num_threads); 12111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } else { 12211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return 0; 12311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 12411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 12511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 12611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#else 12711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 12811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertsize_t GetThreadCount() { 12911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // There's no portable way to detect the number of threads, so we just 13011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // return 0 to indicate that we cannot detect it. 13111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return 0; 13211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 13311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 13411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif // GTEST_OS_MAC 13511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 13611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if GTEST_USES_POSIX_RE 13711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 13811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Implements RE. Currently only needed for death tests. 13911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 14011cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertRE::~RE() { 14111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (is_valid_) { 14211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // regfree'ing an invalid regex might crash because the content 14311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // of the regex is undefined. Since the regex's are essentially 14411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // the same, one cannot be valid (or invalid) without the other 14511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // being so too. 14611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert regfree(&partial_regex_); 14711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert regfree(&full_regex_); 14811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 14911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert free(const_cast<char*>(pattern_)); 15011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 15111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 15211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Returns true iff regular expression re matches the entire str. 15311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool RE::FullMatch(const char* str, const RE& re) { 15411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (!re.is_valid_) return false; 15511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 15611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert regmatch_t match; 15711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return regexec(&re.full_regex_, str, 1, &match, 0) == 0; 15811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 15911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 16011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Returns true iff regular expression re matches a substring of str 16111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// (including str itself). 16211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool RE::PartialMatch(const char* str, const RE& re) { 16311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (!re.is_valid_) return false; 16411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 16511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert regmatch_t match; 16611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return regexec(&re.partial_regex_, str, 1, &match, 0) == 0; 16711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 16811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 16911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Initializes an RE from its string representation. 17011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid RE::Init(const char* regex) { 17111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert pattern_ = posix::StrDup(regex); 17211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 17311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Reserves enough bytes to hold the regular expression used for a 17411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // full match. 17511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const size_t full_regex_len = strlen(regex) + 10; 17611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert char* const full_pattern = new char[full_regex_len]; 17711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 17811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert snprintf(full_pattern, full_regex_len, "^(%s)$", regex); 17911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert is_valid_ = regcomp(&full_regex_, full_pattern, REG_EXTENDED) == 0; 18011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // We want to call regcomp(&partial_regex_, ...) even if the 18111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // previous expression returns false. Otherwise partial_regex_ may 18211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // not be properly initialized can may cause trouble when it's 18311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // freed. 18411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // 18511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Some implementation of POSIX regex (e.g. on at least some 18611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // versions of Cygwin) doesn't accept the empty string as a valid 18711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // regex. We change it to an equivalent form "()" to be safe. 18811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (is_valid_) { 18911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const char* const partial_regex = (*regex == '\0') ? "()" : regex; 19011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert is_valid_ = regcomp(&partial_regex_, partial_regex, REG_EXTENDED) == 0; 19111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 19211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert EXPECT_TRUE(is_valid_) 19311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << "Regular expression \"" << regex 19411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << "\" is not a valid POSIX Extended regular expression."; 19511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 19611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert delete[] full_pattern; 19711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 19811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 19911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#elif GTEST_USES_SIMPLE_RE 20011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 20111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Returns true iff ch appears anywhere in str (excluding the 20211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// terminating '\0' character). 20311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool IsInSet(char ch, const char* str) { 20411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return ch != '\0' && strchr(str, ch) != NULL; 20511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 20611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 20711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Returns true iff ch belongs to the given classification. Unlike 20811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// similar functions in <ctype.h>, these aren't affected by the 20911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// current locale. 21011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool IsAsciiDigit(char ch) { return '0' <= ch && ch <= '9'; } 21111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool IsAsciiPunct(char ch) { 21211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return IsInSet(ch, "^-!\"#$%&'()*+,./:;<=>?@[\\]_`{|}~"); 21311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 21411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool IsRepeat(char ch) { return IsInSet(ch, "?*+"); } 21511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool IsAsciiWhiteSpace(char ch) { return IsInSet(ch, " \f\n\r\t\v"); } 21611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool IsAsciiWordChar(char ch) { 21711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return ('a' <= ch && ch <= 'z') || ('A' <= ch && ch <= 'Z') || 21811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ('0' <= ch && ch <= '9') || ch == '_'; 21911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 22011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 22111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Returns true iff "\\c" is a supported escape sequence. 22211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool IsValidEscape(char c) { 22311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return (IsAsciiPunct(c) || IsInSet(c, "dDfnrsStvwW")); 22411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 22511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 22611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Returns true iff the given atom (specified by escaped and pattern) 22711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// matches ch. The result is undefined if the atom is invalid. 22811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool AtomMatchesChar(bool escaped, char pattern_char, char ch) { 22911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (escaped) { // "\\p" where p is pattern_char. 23011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert switch (pattern_char) { 23111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert case 'd': return IsAsciiDigit(ch); 23211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert case 'D': return !IsAsciiDigit(ch); 23311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert case 'f': return ch == '\f'; 23411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert case 'n': return ch == '\n'; 23511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert case 'r': return ch == '\r'; 23611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert case 's': return IsAsciiWhiteSpace(ch); 23711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert case 'S': return !IsAsciiWhiteSpace(ch); 23811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert case 't': return ch == '\t'; 23911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert case 'v': return ch == '\v'; 24011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert case 'w': return IsAsciiWordChar(ch); 24111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert case 'W': return !IsAsciiWordChar(ch); 24211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 24311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return IsAsciiPunct(pattern_char) && pattern_char == ch; 24411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 24511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 24611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return (pattern_char == '.' && ch != '\n') || pattern_char == ch; 24711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 24811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 24911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Helper function used by ValidateRegex() to format error messages. 25011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstd::string FormatRegexSyntaxError(const char* regex, int index) { 25111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return (Message() << "Syntax error at index " << index 25211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << " in simple regular expression \"" << regex << "\": ").GetString(); 25311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 25411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 25511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Generates non-fatal failures and returns false if regex is invalid; 25611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// otherwise returns true. 25711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool ValidateRegex(const char* regex) { 25811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (regex == NULL) { 25911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // TODO(wan@google.com): fix the source file location in the 26011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // assertion failures to match where the regex is used in user 26111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // code. 26211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ADD_FAILURE() << "NULL is not a valid simple regular expression."; 26311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return false; 26411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 26511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 26611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert bool is_valid = true; 26711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 26811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // True iff ?, *, or + can follow the previous atom. 26911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert bool prev_repeatable = false; 27011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert for (int i = 0; regex[i]; i++) { 27111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (regex[i] == '\\') { // An escape sequence 27211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert i++; 27311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (regex[i] == '\0') { 27411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ADD_FAILURE() << FormatRegexSyntaxError(regex, i - 1) 27511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << "'\\' cannot appear at the end."; 27611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return false; 27711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 27811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 27911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (!IsValidEscape(regex[i])) { 28011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ADD_FAILURE() << FormatRegexSyntaxError(regex, i - 1) 28111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << "invalid escape sequence \"\\" << regex[i] << "\"."; 28211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert is_valid = false; 28311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 28411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert prev_repeatable = true; 28511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } else { // Not an escape sequence. 28611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const char ch = regex[i]; 28711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 28811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (ch == '^' && i > 0) { 28911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ADD_FAILURE() << FormatRegexSyntaxError(regex, i) 29011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << "'^' can only appear at the beginning."; 29111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert is_valid = false; 29211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } else if (ch == '$' && regex[i + 1] != '\0') { 29311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ADD_FAILURE() << FormatRegexSyntaxError(regex, i) 29411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << "'$' can only appear at the end."; 29511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert is_valid = false; 29611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } else if (IsInSet(ch, "()[]{}|")) { 29711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ADD_FAILURE() << FormatRegexSyntaxError(regex, i) 29811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << "'" << ch << "' is unsupported."; 29911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert is_valid = false; 30011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } else if (IsRepeat(ch) && !prev_repeatable) { 30111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ADD_FAILURE() << FormatRegexSyntaxError(regex, i) 30211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << "'" << ch << "' can only follow a repeatable token."; 30311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert is_valid = false; 30411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 30511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 30611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert prev_repeatable = !IsInSet(ch, "^$?*+"); 30711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 30811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 30911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 31011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return is_valid; 31111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 31211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 31311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Matches a repeated regex atom followed by a valid simple regular 31411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// expression. The regex atom is defined as c if escaped is false, 31511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// or \c otherwise. repeat is the repetition meta character (?, *, 31611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// or +). The behavior is undefined if str contains too many 31711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// characters to be indexable by size_t, in which case the test will 31811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// probably time out anyway. We are fine with this limitation as 31911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// std::string has it too. 32011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool MatchRepetitionAndRegexAtHead( 32111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert bool escaped, char c, char repeat, const char* regex, 32211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const char* str) { 32311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const size_t min_count = (repeat == '+') ? 1 : 0; 32411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const size_t max_count = (repeat == '?') ? 1 : 32511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert static_cast<size_t>(-1) - 1; 32611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // We cannot call numeric_limits::max() as it conflicts with the 32711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // max() macro on Windows. 32811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 32911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert for (size_t i = 0; i <= max_count; ++i) { 33011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // We know that the atom matches each of the first i characters in str. 33111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (i >= min_count && MatchRegexAtHead(regex, str + i)) { 33211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // We have enough matches at the head, and the tail matches too. 33311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Since we only care about *whether* the pattern matches str 33411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // (as opposed to *how* it matches), there is no need to find a 33511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // greedy match. 33611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return true; 33711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 33811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (str[i] == '\0' || !AtomMatchesChar(escaped, c, str[i])) 33911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return false; 34011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 34111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return false; 34211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 34311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 34411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Returns true iff regex matches a prefix of str. regex must be a 34511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// valid simple regular expression and not start with "^", or the 34611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// result is undefined. 34711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool MatchRegexAtHead(const char* regex, const char* str) { 34811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (*regex == '\0') // An empty regex matches a prefix of anything. 34911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return true; 35011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 35111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // "$" only matches the end of a string. Note that regex being 35211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // valid guarantees that there's nothing after "$" in it. 35311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (*regex == '$') 35411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return *str == '\0'; 35511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 35611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Is the first thing in regex an escape sequence? 35711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const bool escaped = *regex == '\\'; 35811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (escaped) 35911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ++regex; 36011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (IsRepeat(regex[1])) { 36111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // MatchRepetitionAndRegexAtHead() calls MatchRegexAtHead(), so 36211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // here's an indirect recursion. It terminates as the regex gets 36311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // shorter in each recursion. 36411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return MatchRepetitionAndRegexAtHead( 36511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert escaped, regex[0], regex[1], regex + 2, str); 36611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } else { 36711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // regex isn't empty, isn't "$", and doesn't start with a 36811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // repetition. We match the first atom of regex with the first 36911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // character of str and recurse. 37011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return (*str != '\0') && AtomMatchesChar(escaped, *regex, *str) && 37111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert MatchRegexAtHead(regex + 1, str + 1); 37211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 37311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 37411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 37511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Returns true iff regex matches any substring of str. regex must be 37611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// a valid simple regular expression, or the result is undefined. 37711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 37811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// The algorithm is recursive, but the recursion depth doesn't exceed 37911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// the regex length, so we won't need to worry about running out of 38011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// stack space normally. In rare cases the time complexity can be 38111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// exponential with respect to the regex length + the string length, 38211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// but usually it's must faster (often close to linear). 38311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool MatchRegexAnywhere(const char* regex, const char* str) { 38411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (regex == NULL || str == NULL) 38511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return false; 38611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 38711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (*regex == '^') 38811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return MatchRegexAtHead(regex + 1, str); 38911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 39011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // A successful match can be anywhere in str. 39111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert do { 39211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (MatchRegexAtHead(regex, str)) 39311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return true; 39411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } while (*str++ != '\0'); 39511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return false; 39611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 39711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 39811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Implements the RE class. 39911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 40011cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertRE::~RE() { 40111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert free(const_cast<char*>(pattern_)); 40211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert free(const_cast<char*>(full_pattern_)); 40311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 40411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 40511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Returns true iff regular expression re matches the entire str. 40611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool RE::FullMatch(const char* str, const RE& re) { 40711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return re.is_valid_ && MatchRegexAnywhere(re.full_pattern_, str); 40811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 40911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 41011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Returns true iff regular expression re matches a substring of str 41111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// (including str itself). 41211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool RE::PartialMatch(const char* str, const RE& re) { 41311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return re.is_valid_ && MatchRegexAnywhere(re.pattern_, str); 41411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 41511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 41611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Initializes an RE from its string representation. 41711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid RE::Init(const char* regex) { 41811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert pattern_ = full_pattern_ = NULL; 41911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (regex != NULL) { 42011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert pattern_ = posix::StrDup(regex); 42111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 42211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 42311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert is_valid_ = ValidateRegex(regex); 42411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (!is_valid_) { 42511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // No need to calculate the full pattern when the regex is invalid. 42611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return; 42711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 42811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 42911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const size_t len = strlen(regex); 43011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Reserves enough bytes to hold the regular expression used for a 43111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // full match: we need space to prepend a '^', append a '$', and 43211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // terminate the string with '\0'. 43311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert char* buffer = static_cast<char*>(malloc(len + 3)); 43411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert full_pattern_ = buffer; 43511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 43611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (*regex != '^') 43711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *buffer++ = '^'; // Makes sure full_pattern_ starts with '^'. 43811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 43911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // We don't use snprintf or strncpy, as they trigger a warning when 44011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // compiled with VC++ 8.0. 44111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert memcpy(buffer, regex, len); 44211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert buffer += len; 44311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 44411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (len == 0 || regex[len - 1] != '$') 44511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *buffer++ = '$'; // Makes sure full_pattern_ ends with '$'. 44611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 44711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *buffer = '\0'; 44811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 44911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 45011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif // GTEST_USES_POSIX_RE 45111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 45211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertconst char kUnknownFile[] = "unknown file"; 45311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 45411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Formats a source file path and a line number as they would appear 45511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// in an error message from the compiler used to compile this code. 45611cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertGTEST_API_ ::std::string FormatFileLocation(const char* file, int line) { 45711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const std::string file_name(file == NULL ? kUnknownFile : file); 45811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 45911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (line < 0) { 46011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return file_name + ":"; 46111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 46211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifdef _MSC_VER 46311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return file_name + "(" + StreamableToString(line) + "):"; 46411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#else 46511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return file_name + ":" + StreamableToString(line) + ":"; 46611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif // _MSC_VER 46711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 46811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 46911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Formats a file location for compiler-independent XML output. 47011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Although this function is not platform dependent, we put it next to 47111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// FormatFileLocation in order to contrast the two functions. 47211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Note that FormatCompilerIndependentFileLocation() does NOT append colon 47311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// to the file location it produces, unlike FormatFileLocation(). 47411cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertGTEST_API_ ::std::string FormatCompilerIndependentFileLocation( 47511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const char* file, int line) { 47611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const std::string file_name(file == NULL ? kUnknownFile : file); 47711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 47811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (line < 0) 47911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return file_name; 48011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert else 48111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return file_name + ":" + StreamableToString(line); 48211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 48311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 48411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 48511cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertGTestLog::GTestLog(GTestLogSeverity severity, const char* file, int line) 48611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert : severity_(severity) { 48711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const char* const marker = 48811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert severity == GTEST_INFO ? "[ INFO ]" : 48911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert severity == GTEST_WARNING ? "[WARNING]" : 49011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert severity == GTEST_ERROR ? "[ ERROR ]" : "[ FATAL ]"; 49111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert GetStream() << ::std::endl << marker << " " 49211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << FormatFileLocation(file, line).c_str() << ": "; 49311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 49411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 49511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Flushes the buffers and, if severity is GTEST_FATAL, aborts the program. 49611cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertGTestLog::~GTestLog() { 49711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert GetStream() << ::std::endl; 49811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (severity_ == GTEST_FATAL) { 49911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert fflush(stderr); 50011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert posix::Abort(); 50111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 50211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 50311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Disable Microsoft deprecation warnings for POSIX functions called from 50411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// this class (creat, dup, dup2, and close) 50511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifdef _MSC_VER 50611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# pragma warning(push) 50711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# pragma warning(disable: 4996) 50811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif // _MSC_VER 50911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 51011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if GTEST_HAS_STREAM_REDIRECTION 51111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 51211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Object that captures an output stream (stdout/stderr). 51311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertclass CapturedStream { 51411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert public: 51511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // The ctor redirects the stream to a temporary file. 51611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert explicit CapturedStream(int fd) : fd_(fd), uncaptured_fd_(dup(fd)) { 51711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# if GTEST_OS_WINDOWS 51811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert char temp_dir_path[MAX_PATH + 1] = { '\0' }; // NOLINT 51911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert char temp_file_path[MAX_PATH + 1] = { '\0' }; // NOLINT 52011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 52111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ::GetTempPathA(sizeof(temp_dir_path), temp_dir_path); 52211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const UINT success = ::GetTempFileNameA(temp_dir_path, 52311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert "gtest_redir", 52411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 0, // Generate unique file name. 52511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert temp_file_path); 52611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert GTEST_CHECK_(success != 0) 52711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << "Unable to create a temporary file in " << temp_dir_path; 52811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const int captured_fd = creat(temp_file_path, _S_IREAD | _S_IWRITE); 52911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert GTEST_CHECK_(captured_fd != -1) << "Unable to open temporary file " 53011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << temp_file_path; 53111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert filename_ = temp_file_path; 53211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# else 53311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // There's no guarantee that a test has write access to the current 53411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // directory, so we create the temporary file in the /tmp directory 53511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // instead. We use /tmp on most systems, and /sdcard on Android. 53611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // That's because Android doesn't have /tmp. 53711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# if GTEST_OS_LINUX_ANDROID 53811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Note: Android applications are expected to call the framework's 53911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Context.getExternalStorageDirectory() method through JNI to get 54011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // the location of the world-writable SD Card directory. However, 54111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // this requires a Context handle, which cannot be retrieved 54211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // globally from native code. Doing so also precludes running the 54311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // code as part of a regular standalone executable, which doesn't 54411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // run in a Dalvik process (e.g. when running it through 'adb shell'). 54511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // 54611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // The location /sdcard is directly accessible from native code 54711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // and is the only location (unofficially) supported by the Android 54811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // team. It's generally a symlink to the real SD Card mount point 54911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // which can be /mnt/sdcard, /mnt/sdcard0, /system/media/sdcard, or 55011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // other OEM-customized locations. Never rely on these, and always 55111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // use /sdcard. 55211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert char name_template[] = "/sdcard/gtest_captured_stream.XXXXXX"; 55311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# else 55411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert char name_template[] = "/tmp/captured_stream.XXXXXX"; 55511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# endif // GTEST_OS_LINUX_ANDROID 55611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const int captured_fd = mkstemp(name_template); 55711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert filename_ = name_template; 55811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# endif // GTEST_OS_WINDOWS 55911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert fflush(NULL); 56011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert dup2(captured_fd, fd_); 56111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert close(captured_fd); 56211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 56311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 56411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ~CapturedStream() { 56511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert remove(filename_.c_str()); 56611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 56711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 56811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert std::string GetCapturedString() { 56911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (uncaptured_fd_ != -1) { 57011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Restores the original stream. 57111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert fflush(NULL); 57211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert dup2(uncaptured_fd_, fd_); 57311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert close(uncaptured_fd_); 57411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert uncaptured_fd_ = -1; 57511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 57611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 57711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert FILE* const file = posix::FOpen(filename_.c_str(), "r"); 57811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const std::string content = ReadEntireFile(file); 57911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert posix::FClose(file); 58011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return content; 58111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 58211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 58311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert private: 58411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Reads the entire content of a file as an std::string. 58511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert static std::string ReadEntireFile(FILE* file); 58611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 58711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Returns the size (in bytes) of a file. 58811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert static size_t GetFileSize(FILE* file); 58911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 59011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const int fd_; // A stream to capture. 59111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int uncaptured_fd_; 59211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Name of the temporary file holding the stderr output. 59311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ::std::string filename_; 59411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 59511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert GTEST_DISALLOW_COPY_AND_ASSIGN_(CapturedStream); 59611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert}; 59711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 59811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Returns the size (in bytes) of a file. 59911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertsize_t CapturedStream::GetFileSize(FILE* file) { 60011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert fseek(file, 0, SEEK_END); 60111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return static_cast<size_t>(ftell(file)); 60211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 60311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 60411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Reads the entire content of a file as a string. 60511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstd::string CapturedStream::ReadEntireFile(FILE* file) { 60611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const size_t file_size = GetFileSize(file); 60711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert char* const buffer = new char[file_size]; 60811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 60911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t bytes_last_read = 0; // # of bytes read in the last fread() 61011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t bytes_read = 0; // # of bytes read so far 61111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 61211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert fseek(file, 0, SEEK_SET); 61311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 61411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Keeps reading the file until we cannot read further or the 61511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // pre-determined file size is reached. 61611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert do { 61711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert bytes_last_read = fread(buffer+bytes_read, 1, file_size-bytes_read, file); 61811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert bytes_read += bytes_last_read; 61911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } while (bytes_last_read > 0 && bytes_read < file_size); 62011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 62111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const std::string content(buffer, bytes_read); 62211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert delete[] buffer; 62311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 62411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return content; 62511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 62611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 62711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# ifdef _MSC_VER 62811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# pragma warning(pop) 62911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# endif // _MSC_VER 63011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 63111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstatic CapturedStream* g_captured_stderr = NULL; 63211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstatic CapturedStream* g_captured_stdout = NULL; 63311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 63411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Starts capturing an output stream (stdout/stderr). 63511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid CaptureStream(int fd, const char* stream_name, CapturedStream** stream) { 63611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (*stream != NULL) { 63711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert GTEST_LOG_(FATAL) << "Only one " << stream_name 63811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << " capturer can exist at a time."; 63911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 64011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *stream = new CapturedStream(fd); 64111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 64211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 64311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Stops capturing the output stream and returns the captured string. 64411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstd::string GetCapturedStream(CapturedStream** captured_stream) { 64511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const std::string content = (*captured_stream)->GetCapturedString(); 64611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 64711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert delete *captured_stream; 64811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *captured_stream = NULL; 64911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 65011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return content; 65111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 65211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 65311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Starts capturing stdout. 65411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid CaptureStdout() { 65511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert CaptureStream(kStdOutFileno, "stdout", &g_captured_stdout); 65611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 65711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 65811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Starts capturing stderr. 65911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid CaptureStderr() { 66011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert CaptureStream(kStdErrFileno, "stderr", &g_captured_stderr); 66111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 66211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 66311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Stops capturing stdout and returns the captured string. 66411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstd::string GetCapturedStdout() { 66511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return GetCapturedStream(&g_captured_stdout); 66611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 66711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 66811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Stops capturing stderr and returns the captured string. 66911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstd::string GetCapturedStderr() { 67011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return GetCapturedStream(&g_captured_stderr); 67111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 67211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 67311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif // GTEST_HAS_STREAM_REDIRECTION 67411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 67511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if GTEST_HAS_DEATH_TEST 67611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 67711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// A copy of all command line arguments. Set by InitGoogleTest(). 67811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert::std::vector<testing::internal::string> g_argvs; 67911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 68011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstatic const ::std::vector<testing::internal::string>* g_injected_test_argvs = 68111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert NULL; // Owned. 68211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 68311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid SetInjectableArgvs(const ::std::vector<testing::internal::string>* argvs) { 68411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (g_injected_test_argvs != argvs) 68511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert delete g_injected_test_argvs; 68611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert g_injected_test_argvs = argvs; 68711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 68811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 68911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertconst ::std::vector<testing::internal::string>& GetInjectableArgvs() { 69011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (g_injected_test_argvs != NULL) { 69111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return *g_injected_test_argvs; 69211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 69311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return g_argvs; 69411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 69511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif // GTEST_HAS_DEATH_TEST 69611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 69711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if GTEST_OS_WINDOWS_MOBILE 69811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertnamespace posix { 69911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid Abort() { 70011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert DebugBreak(); 70111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert TerminateProcess(GetCurrentProcess(), 1); 70211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 70311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} // namespace posix 70411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif // GTEST_OS_WINDOWS_MOBILE 70511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 70611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Returns the name of the environment variable corresponding to the 70711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// given flag. For example, FlagToEnvVar("foo") will return 70811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// "GTEST_FOO" in the open-source version. 70911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstatic std::string FlagToEnvVar(const char* flag) { 71011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const std::string full_flag = 71111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert (Message() << GTEST_FLAG_PREFIX_ << flag).GetString(); 71211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 71311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert Message env_var; 71411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert for (size_t i = 0; i != full_flag.length(); i++) { 71511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert env_var << ToUpper(full_flag.c_str()[i]); 71611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 71711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 71811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return env_var.GetString(); 71911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 72011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 72111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Parses 'str' for a 32-bit signed integer. If successful, writes 72211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// the result to *value and returns true; otherwise leaves *value 72311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// unchanged and returns false. 72411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool ParseInt32(const Message& src_text, const char* str, Int32* value) { 72511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Parses the environment variable as a decimal integer. 72611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert char* end = NULL; 72711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const long long_value = strtol(str, &end, 10); // NOLINT 72811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 72911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Has strtol() consumed all characters in the string? 73011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (*end != '\0') { 73111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // No - an invalid character was encountered. 73211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert Message msg; 73311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert msg << "WARNING: " << src_text 73411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << " is expected to be a 32-bit integer, but actually" 73511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << " has value \"" << str << "\".\n"; 73611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert printf("%s", msg.GetString().c_str()); 73711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert fflush(stdout); 73811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return false; 73911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 74011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 74111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Is the parsed value in the range of an Int32? 74211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const Int32 result = static_cast<Int32>(long_value); 74311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (long_value == LONG_MAX || long_value == LONG_MIN || 74411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // The parsed value overflows as a long. (strtol() returns 74511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // LONG_MAX or LONG_MIN when the input overflows.) 74611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert result != long_value 74711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // The parsed value overflows as an Int32. 74811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ) { 74911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert Message msg; 75011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert msg << "WARNING: " << src_text 75111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << " is expected to be a 32-bit integer, but actually" 75211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert << " has value " << str << ", which overflows.\n"; 75311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert printf("%s", msg.GetString().c_str()); 75411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert fflush(stdout); 75511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return false; 75611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 75711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 75811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *value = result; 75911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return true; 76011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 76111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 76211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Reads and returns the Boolean environment variable corresponding to 76311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// the given flag; if it's not set, returns default_value. 76411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 76511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// The value is considered true iff it's not "0". 76611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertbool BoolFromGTestEnv(const char* flag, bool default_value) { 76711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const std::string env_var = FlagToEnvVar(flag); 76811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const char* const string_value = posix::GetEnv(env_var.c_str()); 76911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return string_value == NULL ? 77011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert default_value : strcmp(string_value, "0") != 0; 77111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 77211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 77311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Reads and returns a 32-bit integer stored in the environment 77411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// variable corresponding to the given flag; if it isn't set or 77511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// doesn't represent a valid 32-bit integer, returns default_value. 77611cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertInt32 Int32FromGTestEnv(const char* flag, Int32 default_value) { 77711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const std::string env_var = FlagToEnvVar(flag); 77811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const char* const string_value = posix::GetEnv(env_var.c_str()); 77911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (string_value == NULL) { 78011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // The environment variable is not set. 78111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return default_value; 78211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 78311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 78411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert Int32 result = default_value; 78511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (!ParseInt32(Message() << "Environment variable " << env_var, 78611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert string_value, &result)) { 78711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert printf("The default value %s is used.\n", 78811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert (Message() << default_value).GetString().c_str()); 78911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert fflush(stdout); 79011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return default_value; 79111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 79211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 79311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return result; 79411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 79511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 79611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Reads and returns the string environment variable corresponding to 79711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// the given flag; if it's not set, returns default_value. 79811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertconst char* StringFromGTestEnv(const char* flag, const char* default_value) { 79911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const std::string env_var = FlagToEnvVar(flag); 80011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert const char* const value = posix::GetEnv(env_var.c_str()); 80111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return value == NULL ? default_value : value; 80211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 80311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 80411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} // namespace internal 80511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} // namespace testing 806