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StringExtensions.cs
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80 lines (71 loc) · 2.48 KB
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
// ReSharper disable once CheckNamespace
/// <summary>
/// Contains extension methods for <see cref="System.String"/>.
/// </summary>
/// <remarks>
/// Original from Cake build tool source:
/// https://github.com/cake-build/cake/blob/9828d7b246d332054896e52ba56983822feb3f05/src/Cake.Core/Extensions/StringExtensions.cs
/// </remarks>
public static class StringExtensions
{
/// <summary>
/// Quotes the specified <see cref="System.String"/>.
/// </summary>
/// <param name="value">The string to quote.</param>
/// <returns>A quoted string.</returns>
public static string Quote(this string value)
{
if (!IsQuoted(value))
{
value = string.Concat("\"", value, "\"");
}
return value;
}
/// <summary>
/// Unquote the specified <see cref="System.String"/>.
/// </summary>
/// <param name="value">The string to unquote.</param>
/// <returns>An unquoted string.</returns>
public static string UnQuote(this string value)
{
if (IsQuoted(value))
{
value = value.Trim('"');
}
return value;
}
/// <summary>
/// Splits the <see cref="String"/> into lines.
/// </summary>
/// <param name="content">The string to split.</param>
/// <returns>The lines making up the provided string.</returns>
public static string[] SplitLines(this string content)
{
content = NormalizeLineEndings(content);
return content.Split(new[] { "\r\n" }, StringSplitOptions.None);
}
/// <summary>
/// Normalizes the line endings in a <see cref="String"/>.
/// </summary>
/// <param name="value">The string to normalize line endings in.</param>
/// <returns>A <see cref="String"/> with normalized line endings.</returns>
public static string NormalizeLineEndings(this string value)
{
if (value != null)
{
value = value.Replace("\r\n", "\n");
value = value.Replace("\r", string.Empty);
return value.Replace("\n", "\r\n");
}
return string.Empty;
}
private static bool IsQuoted(this string value)
{
return value.StartsWith("\"", StringComparison.OrdinalIgnoreCase)
&& value.EndsWith("\"", StringComparison.OrdinalIgnoreCase);
}
}