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563 lines
21 KiB
563 lines
21 KiB
/*
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Copyright (c) 2013 Max Hauser
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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From: https://github.com/maxhauser/semver
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*/
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using System;
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#if !NETSTANDARD
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using System.Globalization;
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using System.Runtime.Serialization;
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using System.Security.Permissions;
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#endif
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using System.Text.RegularExpressions;
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namespace Semver
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{
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/// <summary>
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/// A semantic version implementation.
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/// Conforms to v2.0.0 of http://semver.org/
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/// </summary>
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#if NETSTANDARD
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public sealed class SemVersion : IComparable<SemVersion>, IComparable
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#else
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[Serializable]
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internal sealed class SemVersion : IComparable<SemVersion>, IComparable, ISerializable
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#endif
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{
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static Regex parseEx =
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new Regex(@"^(?<major>\d+)" +
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@"(\.(?<minor>\d+))?" +
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@"(\.(?<patch>\d+))?" +
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@"(\-(?<pre>[0-9A-Za-z\-\.]+))?" +
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@"(\+(?<build>[0-9A-Za-z\-\.]+))?$",
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#if NETSTANDARD
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RegexOptions.CultureInvariant | RegexOptions.ExplicitCapture);
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#else
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RegexOptions.CultureInvariant | RegexOptions.Compiled | RegexOptions.ExplicitCapture);
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#endif
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#if !NETSTANDARD
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/// <summary>
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/// Initializes a new instance of the <see cref="SemVersion" /> class.
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/// </summary>
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/// <param name="info"></param>
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/// <param name="context"></param>
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/// <exception cref="ArgumentNullException"></exception>
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private SemVersion(SerializationInfo info, StreamingContext context)
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{
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if (info == null) throw new ArgumentNullException("info");
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var semVersion = Parse(info.GetString("SemVersion"));
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Major = semVersion.Major;
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Minor = semVersion.Minor;
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Patch = semVersion.Patch;
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Prerelease = semVersion.Prerelease;
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Build = semVersion.Build;
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}
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#endif
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/// <summary>
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/// Initializes a new instance of the <see cref="SemVersion" /> class.
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/// </summary>
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/// <param name="major">The major version.</param>
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/// <param name="minor">The minor version.</param>
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/// <param name="patch">The patch version.</param>
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/// <param name="prerelease">The prerelease version (eg. "alpha").</param>
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/// <param name="build">The build eg ("nightly.232").</param>
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public SemVersion(int major, int minor = 0, int patch = 0, string prerelease = "", string build = "")
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{
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this.Major = major;
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this.Minor = minor;
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this.Patch = patch;
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this.Prerelease = prerelease ?? "";
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this.Build = build ?? "";
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="SemVersion"/> class.
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/// </summary>
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/// <param name="version">The <see cref="System.Version"/> that is used to initialize
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/// the Major, Minor, Patch and Build properties.</param>
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public SemVersion(Version version)
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{
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if (version == null)
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throw new ArgumentNullException("version");
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this.Major = version.Major;
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this.Minor = version.Minor;
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if (version.Revision >= 0)
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{
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this.Patch = version.Revision;
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}
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this.Prerelease = String.Empty;
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if (version.Build > 0)
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{
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this.Build = version.Build.ToString();
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}
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else
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{
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this.Build = String.Empty;
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}
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}
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/// <summary>
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/// Parses the specified string to a semantic version.
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/// </summary>
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/// <param name="version">The version string.</param>
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/// <param name="strict">If set to <c>true</c> minor and patch version are required, else they default to 0.</param>
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/// <returns>The SemVersion object.</returns>
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/// <exception cref="System.InvalidOperationException">When a invalid version string is passed.</exception>
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public static SemVersion Parse(string version, bool strict = false)
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{
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var match = parseEx.Match(version);
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if (!match.Success)
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{
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return new SemVersion(0);
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}
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#if NETSTANDARD
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var major = int.Parse(match.Groups["major"].Value);
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#else
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var major = int.Parse(match.Groups["major"].Value, CultureInfo.InvariantCulture);
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#endif
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var minorMatch = match.Groups["minor"];
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int minor = 0;
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if (minorMatch.Success)
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{
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#if NETSTANDARD
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minor = int.Parse(minorMatch.Value);
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#else
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minor = int.Parse(minorMatch.Value, CultureInfo.InvariantCulture);
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#endif
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}
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else if (strict)
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{
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throw new InvalidOperationException("Invalid version (no minor version given in strict mode)");
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}
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var patchMatch = match.Groups["patch"];
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int patch = 0;
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if (patchMatch.Success)
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{
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#if NETSTANDARD
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patch = int.Parse(patchMatch.Value);
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#else
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patch = int.Parse(patchMatch.Value, CultureInfo.InvariantCulture);
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#endif
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}
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else if (strict)
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{
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throw new InvalidOperationException("Invalid version (no patch version given in strict mode)");
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}
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var prerelease = match.Groups["pre"].Value;
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var build = match.Groups["build"].Value;
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return new SemVersion(major, minor, patch, prerelease, build);
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}
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/// <summary>
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/// Parses the specified string to a semantic version.
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/// </summary>
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/// <param name="version">The version string.</param>
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/// <param name="semver">When the method returns, contains a SemVersion instance equivalent
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/// to the version string passed in, if the version string was valid, or <c>null</c> if the
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/// version string was not valid.</param>
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/// <param name="strict">If set to <c>true</c> minor and patch version are required, else they default to 0.</param>
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/// <returns><c>False</c> when a invalid version string is passed, otherwise <c>true</c>.</returns>
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public static bool TryParse(string version, out SemVersion semver, bool strict = false)
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{
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try
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{
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semver = Parse(version, strict);
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return true;
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}
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catch (Exception)
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{
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semver = null;
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return false;
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}
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}
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/// <summary>
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/// Tests the specified versions for equality.
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/// </summary>
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/// <param name="versionA">The first version.</param>
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/// <param name="versionB">The second version.</param>
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/// <returns>If versionA is equal to versionB <c>true</c>, else <c>false</c>.</returns>
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public static bool Equals(SemVersion versionA, SemVersion versionB)
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{
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if (ReferenceEquals(versionA, null))
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return ReferenceEquals(versionB, null);
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return versionA.Equals(versionB);
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}
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/// <summary>
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/// Compares the specified versions.
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/// </summary>
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/// <param name="versionA">The version to compare to.</param>
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/// <param name="versionB">The version to compare against.</param>
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/// <returns>If versionA < versionB <c>< 0</c>, if versionA > versionB <c>> 0</c>,
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/// if versionA is equal to versionB <c>0</c>.</returns>
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public static int Compare(SemVersion versionA, SemVersion versionB)
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{
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if (ReferenceEquals(versionA, null))
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return ReferenceEquals(versionB, null) ? 0 : -1;
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return versionA.CompareTo(versionB);
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}
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/// <summary>
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/// Make a copy of the current instance with optional altered fields.
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/// </summary>
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/// <param name="major">The major version.</param>
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/// <param name="minor">The minor version.</param>
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/// <param name="patch">The patch version.</param>
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/// <param name="prerelease">The prerelease text.</param>
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/// <param name="build">The build text.</param>
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/// <returns>The new version object.</returns>
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public SemVersion Change(int? major = null, int? minor = null, int? patch = null,
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string prerelease = null, string build = null)
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{
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return new SemVersion(
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major ?? this.Major,
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minor ?? this.Minor,
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patch ?? this.Patch,
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prerelease ?? this.Prerelease,
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build ?? this.Build);
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}
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/// <summary>
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/// Gets the major version.
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/// </summary>
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/// <value>
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/// The major version.
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/// </value>
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public int Major { get; private set; }
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/// <summary>
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/// Gets the minor version.
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/// </summary>
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/// <value>
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/// The minor version.
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/// </value>
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public int Minor { get; private set; }
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/// <summary>
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/// Gets the patch version.
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/// </summary>
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/// <value>
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/// The patch version.
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/// </value>
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public int Patch { get; private set; }
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/// <summary>
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/// Gets the pre-release version.
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/// </summary>
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/// <value>
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/// The pre-release version.
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/// </value>
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public string Prerelease { get; private set; }
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/// <summary>
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/// Gets the build version.
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/// </summary>
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/// <value>
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/// The build version.
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/// </value>
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public string Build { get; private set; }
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/// <summary>
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/// Returns a <see cref="System.String" /> that represents this instance.
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/// </summary>
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/// <returns>
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/// A <see cref="System.String" /> that represents this instance.
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/// </returns>
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public override string ToString()
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{
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var version = "" + Major + "." + Minor + "." + Patch;
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if (!String.IsNullOrEmpty(Prerelease))
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version += "-" + Prerelease;
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if (!String.IsNullOrEmpty(Build))
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version += "+" + Build;
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return version;
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}
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/// <summary>
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/// Compares the current instance with another object of the same type and returns an integer that indicates
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/// whether the current instance precedes, follows, or occurs in the same position in the sort order as the
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/// other object.
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/// </summary>
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/// <param name="obj">An object to compare with this instance.</param>
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/// <returns>
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/// A value that indicates the relative order of the objects being compared.
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/// The return value has these meanings: Value Meaning Less than zero
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/// This instance precedes <paramref name="obj" /> in the sort order.
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/// Zero This instance occurs in the same position in the sort order as <paramref name="obj" />. i
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/// Greater than zero This instance follows <paramref name="obj" /> in the sort order.
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/// </returns>
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public int CompareTo(object obj)
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{
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return CompareTo((SemVersion)obj);
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}
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/// <summary>
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/// Compares the current instance with another object of the same type and returns an integer that indicates
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/// whether the current instance precedes, follows, or occurs in the same position in the sort order as the
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/// other object.
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/// </summary>
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/// <param name="other">An object to compare with this instance.</param>
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/// <returns>
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/// A value that indicates the relative order of the objects being compared.
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/// The return value has these meanings: Value Meaning Less than zero
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/// This instance precedes <paramref name="other" /> in the sort order.
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/// Zero This instance occurs in the same position in the sort order as <paramref name="other" />. i
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/// Greater than zero This instance follows <paramref name="other" /> in the sort order.
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/// </returns>
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public int CompareTo(SemVersion other)
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{
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if (ReferenceEquals(other, null))
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return 1;
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var r = this.CompareByPrecedence(other);
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if (r != 0)
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return r;
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r = CompareComponent(this.Build, other.Build);
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return r;
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}
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/// <summary>
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/// Compares to semantic versions by precedence. This does the same as a Equals, but ignores the build information.
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/// </summary>
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/// <param name="other">The semantic version.</param>
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/// <returns><c>true</c> if the version precedence matches.</returns>
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public bool PrecedenceMatches(SemVersion other)
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{
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return CompareByPrecedence(other) == 0;
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}
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/// <summary>
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/// Compares to semantic versions by precedence. This does the same as a Equals, but ignores the build information.
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/// </summary>
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/// <param name="other">The semantic version.</param>
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/// <returns>
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/// A value that indicates the relative order of the objects being compared.
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/// The return value has these meanings: Value Meaning Less than zero
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/// This instance precedes <paramref name="other" /> in the version precedence.
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/// Zero This instance has the same precedence as <paramref name="other" />. i
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/// Greater than zero This instance has creater precedence as <paramref name="other" />.
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/// </returns>
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public int CompareByPrecedence(SemVersion other)
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{
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if (ReferenceEquals(other, null))
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return 1;
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var r = this.Major.CompareTo(other.Major);
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if (r != 0) return r;
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r = this.Minor.CompareTo(other.Minor);
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if (r != 0) return r;
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r = this.Patch.CompareTo(other.Patch);
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if (r != 0) return r;
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r = CompareComponent(this.Prerelease, other.Prerelease, true);
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return r;
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}
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static int CompareComponent(string a, string b, bool lower = false)
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{
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var aEmpty = String.IsNullOrEmpty(a);
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var bEmpty = String.IsNullOrEmpty(b);
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if (aEmpty && bEmpty)
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return 0;
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if (aEmpty)
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return lower ? 1 : -1;
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if (bEmpty)
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return lower ? -1 : 1;
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var aComps = a.Split('.');
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var bComps = b.Split('.');
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var minLen = Math.Min(aComps.Length, bComps.Length);
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for (int i = 0; i < minLen; i++)
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{
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var ac = aComps[i];
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var bc = bComps[i];
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int anum, bnum;
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var isanum = Int32.TryParse(ac, out anum);
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var isbnum = Int32.TryParse(bc, out bnum);
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int r;
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if (isanum && isbnum)
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{
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r = anum.CompareTo(bnum);
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if (r != 0) return anum.CompareTo(bnum);
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}
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else
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{
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if (isanum)
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return -1;
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if (isbnum)
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return 1;
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r = String.CompareOrdinal(ac, bc);
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if (r != 0)
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return r;
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}
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}
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return aComps.Length.CompareTo(bComps.Length);
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}
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/// <summary>
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/// Determines whether the specified <see cref="System.Object" /> is equal to this instance.
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/// </summary>
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/// <param name="obj">The <see cref="System.Object" /> to compare with this instance.</param>
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/// <returns>
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/// <c>true</c> if the specified <see cref="System.Object" /> is equal to this instance; otherwise, <c>false</c>.
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/// </returns>
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public override bool Equals(object obj)
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{
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if (ReferenceEquals(obj, null))
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return false;
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if (ReferenceEquals(this, obj))
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return true;
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var other = (SemVersion)obj;
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return this.Major == other.Major &&
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this.Minor == other.Minor &&
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this.Patch == other.Patch &&
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string.Equals(this.Prerelease, other.Prerelease, StringComparison.Ordinal) &&
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string.Equals(this.Build, other.Build, StringComparison.Ordinal);
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}
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/// <summary>
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/// Returns a hash code for this instance.
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/// </summary>
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/// <returns>
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/// A hash code for this instance, suitable for use in hashing algorithms and data structures like a hash table.
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/// </returns>
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public override int GetHashCode()
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{
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unchecked
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{
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int result = this.Major.GetHashCode();
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result = result * 31 + this.Minor.GetHashCode();
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result = result * 31 + this.Patch.GetHashCode();
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result = result * 31 + this.Prerelease.GetHashCode();
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result = result * 31 + this.Build.GetHashCode();
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return result;
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}
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}
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#if !NETSTANDARD
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[SecurityPermission(SecurityAction.Demand, SerializationFormatter = true)]
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public void GetObjectData(SerializationInfo info, StreamingContext context)
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{
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if (info == null) throw new ArgumentNullException("info");
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info.AddValue("SemVersion", ToString());
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}
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#endif
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/// <summary>
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/// Implicit conversion from string to SemVersion.
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/// </summary>
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/// <param name="version">The semantic version.</param>
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/// <returns>The SemVersion object.</returns>
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public static implicit operator SemVersion(string version)
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{
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return SemVersion.Parse(version);
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}
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/// <summary>
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/// The override of the equals operator.
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/// </summary>
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/// <param name="left">The left value.</param>
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/// <param name="right">The right value.</param>
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/// <returns>If left is equal to right <c>true</c>, else <c>false</c>.</returns>
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public static bool operator ==(SemVersion left, SemVersion right)
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{
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return SemVersion.Equals(left, right);
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}
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/// <summary>
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/// The override of the un-equal operator.
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/// </summary>
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/// <param name="left">The left value.</param>
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/// <param name="right">The right value.</param>
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/// <returns>If left is not equal to right <c>true</c>, else <c>false</c>.</returns>
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public static bool operator !=(SemVersion left, SemVersion right)
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{
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return !SemVersion.Equals(left, right);
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}
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/// <summary>
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/// The override of the greater operator.
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/// </summary>
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/// <param name="left">The left value.</param>
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/// <param name="right">The right value.</param>
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|
/// <returns>If left is greater than right <c>true</c>, else <c>false</c>.</returns>
|
|
public static bool operator >(SemVersion left, SemVersion right)
|
|
{
|
|
return SemVersion.Compare(left, right) > 0;
|
|
}
|
|
|
|
/// <summary>
|
|
/// The override of the greater than or equal operator.
|
|
/// </summary>
|
|
/// <param name="left">The left value.</param>
|
|
/// <param name="right">The right value.</param>
|
|
/// <returns>If left is greater than or equal to right <c>true</c>, else <c>false</c>.</returns>
|
|
public static bool operator >=(SemVersion left, SemVersion right)
|
|
{
|
|
return left == right || left > right;
|
|
}
|
|
|
|
/// <summary>
|
|
/// The override of the less operator.
|
|
/// </summary>
|
|
/// <param name="left">The left value.</param>
|
|
/// <param name="right">The right value.</param>
|
|
/// <returns>If left is less than right <c>true</c>, else <c>false</c>.</returns>
|
|
public static bool operator <(SemVersion left, SemVersion right)
|
|
{
|
|
return SemVersion.Compare(left, right) < 0;
|
|
}
|
|
|
|
/// <summary>
|
|
/// The override of the less than or equal operator.
|
|
/// </summary>
|
|
/// <param name="left">The left value.</param>
|
|
/// <param name="right">The right value.</param>
|
|
/// <returns>If left is less than or equal to right <c>true</c>, else <c>false</c>.</returns>
|
|
public static bool operator <=(SemVersion left, SemVersion right)
|
|
{
|
|
return left == right || left < right;
|
|
}
|
|
}
|
|
}
|