deanm@chromium.org
98149e5a43
Normalize end of file newlines in base/. All files end in a single newline. Review URL: http://codereview.chromium.org/42011 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@11329 0039d316-1c4b-4281-b951-d872f2087c98
83 linhas
2.3 KiB
C++
83 linhas
2.3 KiB
C++
// Copyright (c) 2009 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <vector>
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#include "base/string_util.h"
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#include "base/version.h"
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// static
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Version* Version::GetVersionFromString(const std::wstring& version_str) {
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if (!IsStringASCII(version_str))
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return NULL;
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return GetVersionFromString(WideToASCII(version_str));
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}
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// static
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Version* Version::GetVersionFromString(const std::string& version_str) {
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Version* vers = new Version();
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if (vers->InitFromString(version_str))
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return vers;
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delete vers;
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return NULL;
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}
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bool Version::Equals(const Version& that) const {
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return CompareTo(that) == 0;
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}
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int Version::CompareTo(const Version& other) const {
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std::vector<uint16> other_components = other.components();
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size_t count = std::min(components_.size(), other_components.size());
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for (size_t i = 0; i < count; ++i) {
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if (components_[i] > other_components[i])
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return 1;
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if (components_[i] < other_components[i])
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return -1;
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}
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if (components_.size() > other_components.size()) {
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for (size_t i = count; i < components_.size(); ++i)
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if (components_[i] > 0)
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return 1;
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} else if (components_.size() < other_components.size()) {
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for (size_t i = count; i < other_components.size(); ++i)
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if (other_components[i] > 0)
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return -1;
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}
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return 0;
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}
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const std::string Version::GetString() const {
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std::string version_str;
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int count = components_.size();
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for (int i = 0; i < count - 1; ++i) {
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version_str.append(IntToString(components_[i]));
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version_str.append(".");
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}
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version_str.append(IntToString(components_[count - 1]));
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return version_str;
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}
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bool Version::InitFromString(const std::string& version_str) {
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std::vector<std::string> numbers;
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SplitString(version_str, '.', &numbers);
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for (std::vector<std::string>::iterator i = numbers.begin();
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i != numbers.end(); ++i) {
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int num;
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if (!StringToInt(*i, &num))
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return false;
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if (num < 0)
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return false;
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const uint16 max = 0xFFFF;
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if (num > max)
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return false;
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// This throws out things like +3, or 032.
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if (IntToString(num) != *i)
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return false;
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uint16 component = static_cast<uint16>(num);
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components_.push_back(component);
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}
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return true;
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}
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