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 32b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad#include "gtest/internal/gtest-port.h" 337ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 347ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman#include <limits.h> 357ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman#include <stdlib.h> 367ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman#include <stdio.h> 37b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad#include <string.h> 387ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 39190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#if GTEST_OS_WINDOWS_MOBILE 40b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad# include <windows.h> // For TerminateProcess() 41190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#elif GTEST_OS_WINDOWS 42b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad# include <io.h> 43b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad# include <sys/stat.h> 44e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#else 45b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad# include <unistd.h> 46190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#endif // GTEST_OS_WINDOWS_MOBILE 47e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 48190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#if GTEST_OS_MAC 49b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad# include <mach/mach_init.h> 50b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad# include <mach/task.h> 51b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad# include <mach/vm_map.h> 52190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#endif // GTEST_OS_MAC 537ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 54b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad#include "gtest/gtest-spi.h" 55b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad#include "gtest/gtest-message.h" 56b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad#include "gtest/internal/gtest-internal.h" 57b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad#include "gtest/internal/gtest-string.h" 587ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 59e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Indicates that this translation unit is part of Google Test's 60e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// implementation. It must come before gtest-internal-inl.h is 61e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// included, or there will be a compiler error. This trick is to 62e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// prevent a user from accidentally including gtest-internal-inl.h in 63e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// his code. 64e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#define GTEST_IMPLEMENTATION_ 1 65e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#include "gtest/internal/gtest-internal-inl.h" 66e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#undef GTEST_IMPLEMENTATION_ 677ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 687ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmannamespace testing { 697ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmannamespace internal { 707ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 71190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#if defined(_MSC_VER) || defined(__BORLANDC__) 72190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer// MSVC and C++Builder do not provide a definition of STDERR_FILENO. 7357240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramerconst int kStdOutFileno = 1; 74e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerconst int kStdErrFileno = 2; 75e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#else 7657240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramerconst int kStdOutFileno = STDOUT_FILENO; 77e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerconst int kStdErrFileno = STDERR_FILENO; 78190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#endif // _MSC_VER 79190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer 80190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#if GTEST_OS_MAC 81190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer 82190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer// Returns the number of threads running in the process, or 0 to indicate that 83190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer// we cannot detect it. 84190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramersize_t GetThreadCount() { 85190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer const task_t task = mach_task_self(); 86190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer mach_msg_type_number_t thread_count; 87190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer thread_act_array_t thread_list; 88190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer const kern_return_t status = task_threads(task, &thread_list, &thread_count); 89190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer if (status == KERN_SUCCESS) { 90190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer // task_threads allocates resources in thread_list and we need to free them 91190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer // to avoid leaks. 92190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer vm_deallocate(task, 93190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer reinterpret_cast<vm_address_t>(thread_list), 94190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer sizeof(thread_t) * thread_count); 95190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer return static_cast<size_t>(thread_count); 96190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer } else { 97190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer return 0; 98190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer } 99190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer} 100190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer 101190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#else 102190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer 103190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramersize_t GetThreadCount() { 104190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer // There's no portable way to detect the number of threads, so we just 105190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer // return 0 to indicate that we cannot detect it. 106190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer return 0; 107190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer} 108190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer 109190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#endif // GTEST_OS_MAC 110e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 111e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#if GTEST_USES_POSIX_RE 1127ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1137ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Implements RE. Currently only needed for death tests. 1147ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1157ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha BrukmanRE::~RE() { 11657240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer if (is_valid_) { 11757240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer // regfree'ing an invalid regex might crash because the content 11857240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer // of the regex is undefined. Since the regex's are essentially 11957240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer // the same, one cannot be valid (or invalid) without the other 12057240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer // being so too. 12157240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer regfree(&partial_regex_); 12257240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer regfree(&full_regex_); 12357240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer } 1247ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman free(const_cast<char*>(pattern_)); 1257ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 1267ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1277ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Returns true iff regular expression re matches the entire str. 1287ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanbool RE::FullMatch(const char* str, const RE& re) { 1297ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman if (!re.is_valid_) return false; 1307ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1317ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman regmatch_t match; 1327ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return regexec(&re.full_regex_, str, 1, &match, 0) == 0; 1337ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 1347ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1357ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Returns true iff regular expression re matches a substring of str 1367ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// (including str itself). 1377ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanbool RE::PartialMatch(const char* str, const RE& re) { 1387ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman if (!re.is_valid_) return false; 1397ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1407ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman regmatch_t match; 1417ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return regexec(&re.partial_regex_, str, 1, &match, 0) == 0; 1427ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 1437ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1447ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Initializes an RE from its string representation. 1457ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanvoid RE::Init(const char* regex) { 146190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer pattern_ = posix::StrDup(regex); 1477ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1487ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // Reserves enough bytes to hold the regular expression used for a 1497ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // full match. 1507ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const size_t full_regex_len = strlen(regex) + 10; 1517ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman char* const full_pattern = new char[full_regex_len]; 1527ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1537ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman snprintf(full_pattern, full_regex_len, "^(%s)$", regex); 1547ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman is_valid_ = regcomp(&full_regex_, full_pattern, REG_EXTENDED) == 0; 1557ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // We want to call regcomp(&partial_regex_, ...) even if the 1567ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // previous expression returns false. Otherwise partial_regex_ may 1577ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // not be properly initialized can may cause trouble when it's 1587ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // freed. 159e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // 160e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // Some implementation of POSIX regex (e.g. on at least some 161e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // versions of Cygwin) doesn't accept the empty string as a valid 162e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // regex. We change it to an equivalent form "()" to be safe. 16357240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer if (is_valid_) { 16457240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer const char* const partial_regex = (*regex == '\0') ? "()" : regex; 16557240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer is_valid_ = regcomp(&partial_regex_, partial_regex, REG_EXTENDED) == 0; 16657240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer } 1677ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman EXPECT_TRUE(is_valid_) 1687ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman << "Regular expression \"" << regex 1697ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman << "\" is not a valid POSIX Extended regular expression."; 1707ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 1717ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman delete[] full_pattern; 1727ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 1737ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 174e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#elif GTEST_USES_SIMPLE_RE 175e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 176e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff ch appears anywhere in str (excluding the 177e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// terminating '\0' character). 178e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool IsInSet(char ch, const char* str) { 179e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return ch != '\0' && strchr(str, ch) != NULL; 180e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 181e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 182e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff ch belongs to the given classification. Unlike 183e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// similar functions in <ctype.h>, these aren't affected by the 184e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// current locale. 185b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foadbool IsAsciiDigit(char ch) { return '0' <= ch && ch <= '9'; } 186b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foadbool IsAsciiPunct(char ch) { 187e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return IsInSet(ch, "^-!\"#$%&'()*+,./:;<=>?@[\\]_`{|}~"); 188e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 189e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool IsRepeat(char ch) { return IsInSet(ch, "?*+"); } 190b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foadbool IsAsciiWhiteSpace(char ch) { return IsInSet(ch, " \f\n\r\t\v"); } 191b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foadbool IsAsciiWordChar(char ch) { 192e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return ('a' <= ch && ch <= 'z') || ('A' <= ch && ch <= 'Z') || 193e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ('0' <= ch && ch <= '9') || ch == '_'; 194e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 195e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 196e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff "\\c" is a supported escape sequence. 197e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool IsValidEscape(char c) { 198b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad return (IsAsciiPunct(c) || IsInSet(c, "dDfnrsStvwW")); 199e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 200e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 201e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff the given atom (specified by escaped and pattern) 202e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// matches ch. The result is undefined if the atom is invalid. 203e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool AtomMatchesChar(bool escaped, char pattern_char, char ch) { 204e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (escaped) { // "\\p" where p is pattern_char. 205e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer switch (pattern_char) { 206b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad case 'd': return IsAsciiDigit(ch); 207b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad case 'D': return !IsAsciiDigit(ch); 208e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 'f': return ch == '\f'; 209e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 'n': return ch == '\n'; 210e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 'r': return ch == '\r'; 211b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad case 's': return IsAsciiWhiteSpace(ch); 212b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad case 'S': return !IsAsciiWhiteSpace(ch); 213e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 't': return ch == '\t'; 214e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer case 'v': return ch == '\v'; 215b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad case 'w': return IsAsciiWordChar(ch); 216b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad case 'W': return !IsAsciiWordChar(ch); 217e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 218b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad return IsAsciiPunct(pattern_char) && pattern_char == ch; 219e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 220e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 221e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return (pattern_char == '.' && ch != '\n') || pattern_char == ch; 222e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 223e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 224e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Helper function used by ValidateRegex() to format error messages. 225e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin KramerString FormatRegexSyntaxError(const char* regex, int index) { 226e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return (Message() << "Syntax error at index " << index 227e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer << " in simple regular expression \"" << regex << "\": ").GetString(); 228e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 229e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 230e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Generates non-fatal failures and returns false if regex is invalid; 231e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// otherwise returns true. 232e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool ValidateRegex(const char* regex) { 233e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (regex == NULL) { 234e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // TODO(wan@google.com): fix the source file location in the 235e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // assertion failures to match where the regex is used in user 236e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // code. 237e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ADD_FAILURE() << "NULL is not a valid simple regular expression."; 238e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return false; 239e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 240e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 241e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer bool is_valid = true; 242e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 243e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // True iff ?, *, or + can follow the previous atom. 244e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer bool prev_repeatable = false; 245e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer for (int i = 0; regex[i]; i++) { 246e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (regex[i] == '\\') { // An escape sequence 247e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer i++; 248e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (regex[i] == '\0') { 249e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ADD_FAILURE() << FormatRegexSyntaxError(regex, i - 1) 250e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer << "'\\' cannot appear at the end."; 251e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return false; 252e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 253e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 254e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (!IsValidEscape(regex[i])) { 255e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ADD_FAILURE() << FormatRegexSyntaxError(regex, i - 1) 256e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer << "invalid escape sequence \"\\" << regex[i] << "\"."; 257e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer is_valid = false; 258e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 259e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer prev_repeatable = true; 260e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } else { // Not an escape sequence. 261e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const char ch = regex[i]; 262e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 263e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (ch == '^' && i > 0) { 264e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ADD_FAILURE() << FormatRegexSyntaxError(regex, i) 265e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer << "'^' can only appear at the beginning."; 266e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer is_valid = false; 267e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } else if (ch == '$' && regex[i + 1] != '\0') { 268e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ADD_FAILURE() << FormatRegexSyntaxError(regex, i) 269e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer << "'$' can only appear at the end."; 270e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer is_valid = false; 271e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } else if (IsInSet(ch, "()[]{}|")) { 272e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ADD_FAILURE() << FormatRegexSyntaxError(regex, i) 273e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer << "'" << ch << "' is unsupported."; 274e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer is_valid = false; 275e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } else if (IsRepeat(ch) && !prev_repeatable) { 276e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ADD_FAILURE() << FormatRegexSyntaxError(regex, i) 277e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer << "'" << ch << "' can only follow a repeatable token."; 278e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer is_valid = false; 279e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 280e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 281e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer prev_repeatable = !IsInSet(ch, "^$?*+"); 282e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 283e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 284e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 285e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return is_valid; 286e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 287e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 288e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Matches a repeated regex atom followed by a valid simple regular 289e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// expression. The regex atom is defined as c if escaped is false, 290e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// or \c otherwise. repeat is the repetition meta character (?, *, 291e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// or +). The behavior is undefined if str contains too many 292e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// characters to be indexable by size_t, in which case the test will 293e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// probably time out anyway. We are fine with this limitation as 294e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// std::string has it too. 295e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool MatchRepetitionAndRegexAtHead( 296e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer bool escaped, char c, char repeat, const char* regex, 297e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const char* str) { 298e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const size_t min_count = (repeat == '+') ? 1 : 0; 299e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const size_t max_count = (repeat == '?') ? 1 : 300e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer static_cast<size_t>(-1) - 1; 301e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // We cannot call numeric_limits::max() as it conflicts with the 302e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // max() macro on Windows. 303e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 304e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer for (size_t i = 0; i <= max_count; ++i) { 305e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // We know that the atom matches each of the first i characters in str. 306e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (i >= min_count && MatchRegexAtHead(regex, str + i)) { 307e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // We have enough matches at the head, and the tail matches too. 308e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // Since we only care about *whether* the pattern matches str 309e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // (as opposed to *how* it matches), there is no need to find a 310e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // greedy match. 311e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return true; 312e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 313e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (str[i] == '\0' || !AtomMatchesChar(escaped, c, str[i])) 314e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return false; 315e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 316e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return false; 317e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 318e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 319e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff regex matches a prefix of str. regex must be a 320e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// valid simple regular expression and not start with "^", or the 321e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// result is undefined. 322e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool MatchRegexAtHead(const char* regex, const char* str) { 323e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (*regex == '\0') // An empty regex matches a prefix of anything. 324e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return true; 325e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 326e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // "$" only matches the end of a string. Note that regex being 327e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // valid guarantees that there's nothing after "$" in it. 328e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (*regex == '$') 329e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return *str == '\0'; 330e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 331e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // Is the first thing in regex an escape sequence? 332e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const bool escaped = *regex == '\\'; 333e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (escaped) 334e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ++regex; 335e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (IsRepeat(regex[1])) { 336e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // MatchRepetitionAndRegexAtHead() calls MatchRegexAtHead(), so 337e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // here's an indirect recursion. It terminates as the regex gets 338e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // shorter in each recursion. 339e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return MatchRepetitionAndRegexAtHead( 340e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer escaped, regex[0], regex[1], regex + 2, str); 341e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } else { 342e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // regex isn't empty, isn't "$", and doesn't start with a 343e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // repetition. We match the first atom of regex with the first 344e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // character of str and recurse. 345e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return (*str != '\0') && AtomMatchesChar(escaped, *regex, *str) && 346e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer MatchRegexAtHead(regex + 1, str + 1); 347e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 348e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 349e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 350e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff regex matches any substring of str. regex must be 351e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// a valid simple regular expression, or the result is undefined. 352e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// 353e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// The algorithm is recursive, but the recursion depth doesn't exceed 354e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// the regex length, so we won't need to worry about running out of 355e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// stack space normally. In rare cases the time complexity can be 356e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// exponential with respect to the regex length + the string length, 357e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// but usually it's must faster (often close to linear). 358e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool MatchRegexAnywhere(const char* regex, const char* str) { 359e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (regex == NULL || str == NULL) 360e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return false; 361e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 362e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (*regex == '^') 363e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return MatchRegexAtHead(regex + 1, str); 364e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 365e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // A successful match can be anywhere in str. 366e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer do { 367e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (MatchRegexAtHead(regex, str)) 368e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return true; 369e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } while (*str++ != '\0'); 370e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return false; 371e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 372e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 373e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Implements the RE class. 374e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 375e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin KramerRE::~RE() { 376e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer free(const_cast<char*>(pattern_)); 377e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer free(const_cast<char*>(full_pattern_)); 378e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 379e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 380e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff regular expression re matches the entire str. 381e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool RE::FullMatch(const char* str, const RE& re) { 382e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return re.is_valid_ && MatchRegexAnywhere(re.full_pattern_, str); 383e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 384e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 385e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Returns true iff regular expression re matches a substring of str 386e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// (including str itself). 387e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool RE::PartialMatch(const char* str, const RE& re) { 388e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return re.is_valid_ && MatchRegexAnywhere(re.pattern_, str); 389e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 390e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 391e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Initializes an RE from its string representation. 392e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramervoid RE::Init(const char* regex) { 393e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer pattern_ = full_pattern_ = NULL; 394e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (regex != NULL) { 395190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer pattern_ = posix::StrDup(regex); 396e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 397e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 398e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer is_valid_ = ValidateRegex(regex); 399e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (!is_valid_) { 400e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // No need to calculate the full pattern when the regex is invalid. 401e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return; 402e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer } 403e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 404e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const size_t len = strlen(regex); 405e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // Reserves enough bytes to hold the regular expression used for a 406e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // full match: we need space to prepend a '^', append a '$', and 407e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // terminate the string with '\0'. 408e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer char* buffer = static_cast<char*>(malloc(len + 3)); 409e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer full_pattern_ = buffer; 410e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 411e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (*regex != '^') 412e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer *buffer++ = '^'; // Makes sure full_pattern_ starts with '^'. 413e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 414e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // We don't use snprintf or strncpy, as they trigger a warning when 415e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer // compiled with VC++ 8.0. 416e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer memcpy(buffer, regex, len); 417e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer buffer += len; 418e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 419e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer if (len == 0 || regex[len - 1] != '$') 420e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer *buffer++ = '$'; // Makes sure full_pattern_ ends with '$'. 421e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 422e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer *buffer = '\0'; 423e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 424e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 425e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#endif // GTEST_USES_POSIX_RE 4267ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 427b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foadconst char kUnknownFile[] = "unknown file"; 428b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad 429b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad// Formats a source file path and a line number as they would appear 430b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad// in an error message from the compiler used to compile this code. 431b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay FoadGTEST_API_ ::std::string FormatFileLocation(const char* file, int line) { 432b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad const char* const file_name = file == NULL ? kUnknownFile : file; 433b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad 434b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad if (line < 0) { 435b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad return String::Format("%s:", file_name).c_str(); 436b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad } 437b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad#ifdef _MSC_VER 438b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad return String::Format("%s(%d):", file_name, line).c_str(); 439b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad#else 440b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad return String::Format("%s:%d:", file_name, line).c_str(); 441b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad#endif // _MSC_VER 442b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad} 443b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad 444b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad// Formats a file location for compiler-independent XML output. 445b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad// Although this function is not platform dependent, we put it next to 446b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad// FormatFileLocation in order to contrast the two functions. 447b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad// Note that FormatCompilerIndependentFileLocation() does NOT append colon 448b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad// to the file location it produces, unlike FormatFileLocation(). 449b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay FoadGTEST_API_ ::std::string FormatCompilerIndependentFileLocation( 450b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad const char* file, int line) { 451b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad const char* const file_name = file == NULL ? kUnknownFile : file; 452b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad 453b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad if (line < 0) 454b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad return file_name; 455b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad else 456b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad return String::Format("%s:%d", file_name, line).c_str(); 457b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad} 458b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad 459190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer 460190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin KramerGTestLog::GTestLog(GTestLogSeverity severity, const char* file, int line) 461190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer : severity_(severity) { 4627ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const char* const marker = 4637ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman severity == GTEST_INFO ? "[ INFO ]" : 4647ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman severity == GTEST_WARNING ? "[WARNING]" : 4657ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman severity == GTEST_ERROR ? "[ ERROR ]" : "[ FATAL ]"; 466190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer GetStream() << ::std::endl << marker << " " 467190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer << FormatFileLocation(file, line).c_str() << ": "; 4687ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 4697ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 470190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer// Flushes the buffers and, if severity is GTEST_FATAL, aborts the program. 471190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin KramerGTestLog::~GTestLog() { 472190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer GetStream() << ::std::endl; 473190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer if (severity_ == GTEST_FATAL) { 474190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer fflush(stderr); 475190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer posix::Abort(); 476190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer } 477190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer} 478e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Disable Microsoft deprecation warnings for POSIX functions called from 479e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// this class (creat, dup, dup2, and close) 480e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#ifdef _MSC_VER 481b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad# pragma warning(push) 482b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad# pragma warning(disable: 4996) 483e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#endif // _MSC_VER 4847ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 485b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad#if GTEST_HAS_STREAM_REDIRECTION 4867ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 48757240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer// Object that captures an output stream (stdout/stderr). 48857240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramerclass CapturedStream { 4897ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman public: 49057240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer // The ctor redirects the stream to a temporary file. 49157240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer CapturedStream(int fd) : fd_(fd), uncaptured_fd_(dup(fd)) { 492b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad 493b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad# if GTEST_OS_WINDOWS 494e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer char temp_dir_path[MAX_PATH + 1] = { '\0' }; // NOLINT 495e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer char temp_file_path[MAX_PATH + 1] = { '\0' }; // NOLINT 496e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 497e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer ::GetTempPathA(sizeof(temp_dir_path), temp_dir_path); 49857240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer const UINT success = ::GetTempFileNameA(temp_dir_path, 49957240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer "gtest_redir", 50057240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer 0, // Generate unique file name. 50157240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer temp_file_path); 50257240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer GTEST_CHECK_(success != 0) 50357240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer << "Unable to create a temporary file in " << temp_dir_path; 504e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const int captured_fd = creat(temp_file_path, _S_IREAD | _S_IWRITE); 50557240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer GTEST_CHECK_(captured_fd != -1) << "Unable to open temporary file " 50657240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer << temp_file_path; 507e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer filename_ = temp_file_path; 508b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad# else 5097ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // There's no guarantee that a test has write access to the 5107ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // current directory, so we create the temporary file in the /tmp 5117ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // directory instead. 51257240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer char name_template[] = "/tmp/captured_stream.XXXXXX"; 5137ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const int captured_fd = mkstemp(name_template); 5147ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman filename_ = name_template; 515b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad# endif // GTEST_OS_WINDOWS 5167ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman fflush(NULL); 51757240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer dup2(captured_fd, fd_); 5187ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman close(captured_fd); 5197ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 5207ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 52157240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer ~CapturedStream() { 5227ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman remove(filename_.c_str()); 5237ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 5247ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 52557240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer String GetCapturedString() { 52657240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer if (uncaptured_fd_ != -1) { 52757240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer // Restores the original stream. 52857240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer fflush(NULL); 52957240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer dup2(uncaptured_fd_, fd_); 53057240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer close(uncaptured_fd_); 53157240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer uncaptured_fd_ = -1; 53257240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer } 5337ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 53457240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer FILE* const file = posix::FOpen(filename_.c_str(), "r"); 53557240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer const String content = ReadEntireFile(file); 53657240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer posix::FClose(file); 53757240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer return content; 53857240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer } 5397ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5407ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman private: 54157240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer // Reads the entire content of a file as a String. 54257240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer static String ReadEntireFile(FILE* file); 54357240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer 54457240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer // Returns the size (in bytes) of a file. 54557240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer static size_t GetFileSize(FILE* file); 54657240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer 54757240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer const int fd_; // A stream to capture. 5487ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman int uncaptured_fd_; 54957240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer // Name of the temporary file holding the stderr output. 5507ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman ::std::string filename_; 5517ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 55257240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer GTEST_DISALLOW_COPY_AND_ASSIGN_(CapturedStream); 55357240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer}; 5547ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5557ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Returns the size (in bytes) of a file. 55657240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramersize_t CapturedStream::GetFileSize(FILE* file) { 5577ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman fseek(file, 0, SEEK_END); 5587ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return static_cast<size_t>(ftell(file)); 5597ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 5607ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5617ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Reads the entire content of a file as a string. 56257240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin KramerString CapturedStream::ReadEntireFile(FILE* file) { 5637ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const size_t file_size = GetFileSize(file); 5647ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman char* const buffer = new char[file_size]; 5657ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5667ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman size_t bytes_last_read = 0; // # of bytes read in the last fread() 5677ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman size_t bytes_read = 0; // # of bytes read so far 5687ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5697ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman fseek(file, 0, SEEK_SET); 5707ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5717ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // Keeps reading the file until we cannot read further or the 5727ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // pre-determined file size is reached. 5737ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman do { 5747ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman bytes_last_read = fread(buffer+bytes_read, 1, file_size-bytes_read, file); 5757ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman bytes_read += bytes_last_read; 5767ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } while (bytes_last_read > 0 && bytes_read < file_size); 5777ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 578190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer const String content(buffer, bytes_read); 5797ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman delete[] buffer; 5807ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 5817ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return content; 5827ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 5837ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 584b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad# ifdef _MSC_VER 585b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad# pragma warning(pop) 586b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad# endif // _MSC_VER 58757240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer 58857240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramerstatic CapturedStream* g_captured_stderr = NULL; 58957240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramerstatic CapturedStream* g_captured_stdout = NULL; 59057240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer 59157240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer// Starts capturing an output stream (stdout/stderr). 59257240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramervoid CaptureStream(int fd, const char* stream_name, CapturedStream** stream) { 59357240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer if (*stream != NULL) { 59457240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer GTEST_LOG_(FATAL) << "Only one " << stream_name 59557240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer << " capturer can exist at a time."; 5967ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 59757240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer *stream = new CapturedStream(fd); 5987ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 5997ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 60057240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer// Stops capturing the output stream and returns the captured string. 60157240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin KramerString GetCapturedStream(CapturedStream** captured_stream) { 60257240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer const String content = (*captured_stream)->GetCapturedString(); 603e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 60457240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer delete *captured_stream; 60557240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer *captured_stream = NULL; 6067ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6077ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return content; 6087ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 6097ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 61057240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer// Starts capturing stdout. 61157240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramervoid CaptureStdout() { 61257240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer CaptureStream(kStdOutFileno, "stdout", &g_captured_stdout); 61357240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer} 61457240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer 61557240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer// Starts capturing stderr. 61657240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramervoid CaptureStderr() { 61757240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer CaptureStream(kStdErrFileno, "stderr", &g_captured_stderr); 61857240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer} 61957240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer 62057240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer// Stops capturing stdout and returns the captured string. 62157240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin KramerString GetCapturedStdout() { return GetCapturedStream(&g_captured_stdout); } 62257240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer 62357240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer// Stops capturing stderr and returns the captured string. 62457240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin KramerString GetCapturedStderr() { return GetCapturedStream(&g_captured_stderr); } 62557240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer 626b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad#endif // GTEST_HAS_STREAM_REDIRECTION 62757240ff6e2252f8986f6e47e4010bc52fbae25d1Benjamin Kramer 628e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer#if GTEST_HAS_DEATH_TEST 629e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 6307ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// A copy of all command line arguments. Set by InitGoogleTest(). 6317ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman::std::vector<String> g_argvs; 6327ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6337ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Returns the command line as a vector of strings. 6347ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanconst ::std::vector<String>& GetArgvs() { return g_argvs; } 6357ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6367ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman#endif // GTEST_HAS_DEATH_TEST 6377ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 638190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#if GTEST_OS_WINDOWS_MOBILE 639190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramernamespace posix { 640190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramervoid Abort() { 6417ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman DebugBreak(); 6427ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman TerminateProcess(GetCurrentProcess(), 1); 6437ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 644190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer} // namespace posix 645190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer#endif // GTEST_OS_WINDOWS_MOBILE 6467ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6477ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Returns the name of the environment variable corresponding to the 6487ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// given flag. For example, FlagToEnvVar("foo") will return 6497ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// "GTEST_FOO" in the open-source version. 6507ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanstatic String FlagToEnvVar(const char* flag) { 651e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const String full_flag = 652e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer (Message() << GTEST_FLAG_PREFIX_ << flag).GetString(); 6537ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6547ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman Message env_var; 655190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer for (size_t i = 0; i != full_flag.length(); i++) { 656b33f8e3e55932d0e15a686ef0c598da8dbc37acdJay Foad env_var << ToUpper(full_flag.c_str()[i]); 6577ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 6587ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6597ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return env_var.GetString(); 6607ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 6617ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6627ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Parses 'str' for a 32-bit signed integer. If successful, writes 6637ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// the result to *value and returns true; otherwise leaves *value 6647ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// unchanged and returns false. 6657ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanbool ParseInt32(const Message& src_text, const char* str, Int32* value) { 6667ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // Parses the environment variable as a decimal integer. 6677ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman char* end = NULL; 6687ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const long long_value = strtol(str, &end, 10); // NOLINT 6697ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6707ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // Has strtol() consumed all characters in the string? 6717ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman if (*end != '\0') { 6727ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // No - an invalid character was encountered. 6737ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman Message msg; 6747ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman msg << "WARNING: " << src_text 6757ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman << " is expected to be a 32-bit integer, but actually" 6767ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman << " has value \"" << str << "\".\n"; 6777ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman printf("%s", msg.GetString().c_str()); 6787ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman fflush(stdout); 6797ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return false; 6807ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 6817ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6827ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // Is the parsed value in the range of an Int32? 6837ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const Int32 result = static_cast<Int32>(long_value); 6847ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman if (long_value == LONG_MAX || long_value == LONG_MIN || 6857ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // The parsed value overflows as a long. (strtol() returns 6867ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // LONG_MAX or LONG_MIN when the input overflows.) 6877ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman result != long_value 6887ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // The parsed value overflows as an Int32. 6897ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman ) { 6907ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman Message msg; 6917ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman msg << "WARNING: " << src_text 6927ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman << " is expected to be a 32-bit integer, but actually" 6937ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman << " has value " << str << ", which overflows.\n"; 6947ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman printf("%s", msg.GetString().c_str()); 6957ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman fflush(stdout); 6967ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return false; 6977ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 6987ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 6997ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman *value = result; 7007ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return true; 7017ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 7027ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 703e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// Reads and returns the Boolean environment variable corresponding to 704e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// the given flag; if it's not set, returns default_value. 705e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// 706e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer// The value is considered true iff it's not "0". 707e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramerbool BoolFromGTestEnv(const char* flag, bool default_value) { 708e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer const String env_var = FlagToEnvVar(flag); 709190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer const char* const string_value = posix::GetEnv(env_var.c_str()); 710e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer return string_value == NULL ? 711e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer default_value : strcmp(string_value, "0") != 0; 712e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer} 713e4b9c93fc1b531fe0cfe25a042f6b81c1e7c15c0Benjamin Kramer 7147ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Reads and returns a 32-bit integer stored in the environment 7157ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// variable corresponding to the given flag; if it isn't set or 7167ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// doesn't represent a valid 32-bit integer, returns default_value. 7177ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha BrukmanInt32 Int32FromGTestEnv(const char* flag, Int32 default_value) { 7187ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const String env_var = FlagToEnvVar(flag); 719190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer const char* const string_value = posix::GetEnv(env_var.c_str()); 7207ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman if (string_value == NULL) { 7217ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman // The environment variable is not set. 7227ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return default_value; 7237ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 7247ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 7257ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman Int32 result = default_value; 7267ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman if (!ParseInt32(Message() << "Environment variable " << env_var, 7277ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman string_value, &result)) { 7287ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman printf("The default value %s is used.\n", 7297ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman (Message() << default_value).GetString().c_str()); 7307ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman fflush(stdout); 7317ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return default_value; 7327ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman } 7337ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 7347ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return result; 7357ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 7367ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 7377ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// Reads and returns the string environment variable corresponding to 7387ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman// the given flag; if it's not set, returns default_value. 7397ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukmanconst char* StringFromGTestEnv(const char* flag, const char* default_value) { 7407ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman const String env_var = FlagToEnvVar(flag); 741190f8ee25a6977ac6eb71b816498df42f17ad9a7Benjamin Kramer const char* const value = posix::GetEnv(env_var.c_str()); 7427ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman return value == NULL ? default_value : value; 7437ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} 7447ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman 7457ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} // namespace internal 7467ae6ff442a26212a0cc4c1929b8b0a105dc988e4Misha Brukman} // namespace testing 747