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210 lines
9.5 KiB
210 lines
9.5 KiB
// Copyright 2008, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Author: keith.ray@gmail.com (Keith Ray)
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//
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// Google Test filepath utilities
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//
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// This header file declares classes and functions used internally by
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// Google Test. They are subject to change without notice.
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//
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// This file is #included in <gtest/internal/gtest-internal.h>.
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// Do not include this header file separately!
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#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_
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#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_
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#include "gtest/internal/gtest-string.h"
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namespace testing {
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namespace internal {
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// FilePath - a class for file and directory pathname manipulation which
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// handles platform-specific conventions (like the pathname separator).
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// Used for helper functions for naming files in a directory for xml output.
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// Except for Set methods, all methods are const or static, which provides an
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// "immutable value object" -- useful for peace of mind.
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// A FilePath with a value ending in a path separator ("like/this/") represents
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// a directory, otherwise it is assumed to represent a file. In either case,
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// it may or may not represent an actual file or directory in the file system.
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// Names are NOT checked for syntax correctness -- no checking for illegal
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// characters, malformed paths, etc.
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class GTEST_API_ FilePath {
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public:
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FilePath() : pathname_("") { }
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FilePath(const FilePath& rhs) : pathname_(rhs.pathname_) { }
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explicit FilePath(const char* pathname) : pathname_(pathname) {
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Normalize();
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}
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explicit FilePath(const String& pathname) : pathname_(pathname) {
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Normalize();
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}
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FilePath& operator=(const FilePath& rhs) {
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Set(rhs);
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return *this;
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}
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void Set(const FilePath& rhs) {
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pathname_ = rhs.pathname_;
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}
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String ToString() const { return pathname_; }
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const char* c_str() const { return pathname_.c_str(); }
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// Returns the current working directory, or "" if unsuccessful.
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static FilePath GetCurrentDir();
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// Given directory = "dir", base_name = "test", number = 0,
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// extension = "xml", returns "dir/test.xml". If number is greater
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// than zero (e.g., 12), returns "dir/test_12.xml".
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// On Windows platform, uses \ as the separator rather than /.
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static FilePath MakeFileName(const FilePath& directory,
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const FilePath& base_name,
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int number,
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const char* extension);
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// Given directory = "dir", relative_path = "test.xml",
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// returns "dir/test.xml".
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// On Windows, uses \ as the separator rather than /.
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static FilePath ConcatPaths(const FilePath& directory,
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const FilePath& relative_path);
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// Returns a pathname for a file that does not currently exist. The pathname
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// will be directory/base_name.extension or
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// directory/base_name_<number>.extension if directory/base_name.extension
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// already exists. The number will be incremented until a pathname is found
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// that does not already exist.
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// Examples: 'dir/foo_test.xml' or 'dir/foo_test_1.xml'.
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// There could be a race condition if two or more processes are calling this
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// function at the same time -- they could both pick the same filename.
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static FilePath GenerateUniqueFileName(const FilePath& directory,
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const FilePath& base_name,
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const char* extension);
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// Returns true iff the path is NULL or "".
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bool IsEmpty() const { return c_str() == NULL || *c_str() == '\0'; }
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// If input name has a trailing separator character, removes it and returns
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// the name, otherwise return the name string unmodified.
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// On Windows platform, uses \ as the separator, other platforms use /.
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FilePath RemoveTrailingPathSeparator() const;
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// Returns a copy of the FilePath with the directory part removed.
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// Example: FilePath("path/to/file").RemoveDirectoryName() returns
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// FilePath("file"). If there is no directory part ("just_a_file"), it returns
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// the FilePath unmodified. If there is no file part ("just_a_dir/") it
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// returns an empty FilePath ("").
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// On Windows platform, '\' is the path separator, otherwise it is '/'.
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FilePath RemoveDirectoryName() const;
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// RemoveFileName returns the directory path with the filename removed.
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// Example: FilePath("path/to/file").RemoveFileName() returns "path/to/".
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// If the FilePath is "a_file" or "/a_file", RemoveFileName returns
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// FilePath("./") or, on Windows, FilePath(".\\"). If the filepath does
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// not have a file, like "just/a/dir/", it returns the FilePath unmodified.
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// On Windows platform, '\' is the path separator, otherwise it is '/'.
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FilePath RemoveFileName() const;
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// Returns a copy of the FilePath with the case-insensitive extension removed.
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// Example: FilePath("dir/file.exe").RemoveExtension("EXE") returns
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// FilePath("dir/file"). If a case-insensitive extension is not
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// found, returns a copy of the original FilePath.
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FilePath RemoveExtension(const char* extension) const;
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// Creates directories so that path exists. Returns true if successful or if
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// the directories already exist; returns false if unable to create
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// directories for any reason. Will also return false if the FilePath does
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// not represent a directory (that is, it doesn't end with a path separator).
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bool CreateDirectoriesRecursively() const;
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// Create the directory so that path exists. Returns true if successful or
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// if the directory already exists; returns false if unable to create the
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// directory for any reason, including if the parent directory does not
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// exist. Not named "CreateDirectory" because that's a macro on Windows.
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bool CreateFolder() const;
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// Returns true if FilePath describes something in the file-system,
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// either a file, directory, or whatever, and that something exists.
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bool FileOrDirectoryExists() const;
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// Returns true if pathname describes a directory in the file-system
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// that exists.
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bool DirectoryExists() const;
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// Returns true if FilePath ends with a path separator, which indicates that
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// it is intended to represent a directory. Returns false otherwise.
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// This does NOT check that a directory (or file) actually exists.
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bool IsDirectory() const;
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// Returns true if pathname describes a root directory. (Windows has one
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// root directory per disk drive.)
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bool IsRootDirectory() const;
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// Returns true if pathname describes an absolute path.
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bool IsAbsolutePath() const;
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private:
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// Replaces multiple consecutive separators with a single separator.
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// For example, "bar///foo" becomes "bar/foo". Does not eliminate other
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// redundancies that might be in a pathname involving "." or "..".
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//
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// A pathname with multiple consecutive separators may occur either through
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// user error or as a result of some scripts or APIs that generate a pathname
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// with a trailing separator. On other platforms the same API or script
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// may NOT generate a pathname with a trailing "/". Then elsewhere that
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// pathname may have another "/" and pathname components added to it,
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// without checking for the separator already being there.
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// The script language and operating system may allow paths like "foo//bar"
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// but some of the functions in FilePath will not handle that correctly. In
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// particular, RemoveTrailingPathSeparator() only removes one separator, and
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// it is called in CreateDirectoriesRecursively() assuming that it will change
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// a pathname from directory syntax (trailing separator) to filename syntax.
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//
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// On Windows this method also replaces the alternate path separator '/' with
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// the primary path separator '\\', so that for example "bar\\/\\foo" becomes
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// "bar\\foo".
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void Normalize();
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// Returns a pointer to the last occurence of a valid path separator in
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// the FilePath. On Windows, for example, both '/' and '\' are valid path
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// separators. Returns NULL if no path separator was found.
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const char* FindLastPathSeparator() const;
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String pathname_;
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}; // class FilePath
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} // namespace internal
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} // namespace testing
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#endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_
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