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Commit 72e6448

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author
Oren (electricessence)
committed
Updates.
1 parent d84fbf4 commit 72e6448

3 files changed

Lines changed: 482 additions & 124 deletions

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‎Open.Text.csproj‎

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@@ -15,10 +15,10 @@ Part of the "Open" set of libraries.</Description>
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<RepositoryType>git</RepositoryType>
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<RepositoryUrl>https://github.com/electricessence/Open.Text</RepositoryUrl>
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<PackageTags>dotnet, dotnetcore, string, text, format, stringbuilder, extensions</PackageTags>
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<Version>1.2.0</Version>
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<PackageReleaseNotes>Implemented updated for C# 7.2 features.</PackageReleaseNotes>
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<AssemblyVersion>1.2.0.0</AssemblyVersion>
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<FileVersion>1.2.0.0</FileVersion>
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<Version>2.0.4</Version>
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<PackageReleaseNotes></PackageReleaseNotes>
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<AssemblyVersion>2.0.4.0</AssemblyVersion>
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<FileVersion>2.0.4.0</FileVersion>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
@@ -37,7 +37,7 @@ Part of the "Open" set of libraries.</Description>
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</ItemGroup>
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<ItemGroup>
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<PackageReference Include="System.Memory" Version="4.5.1" />
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<PackageReference Include="Open.MemoryExtensions" Version="2.0.1" />
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</ItemGroup>
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</Project>

‎StringBuilderExtensions.cs‎

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using System;
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using System.Collections.Generic;
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using System.Diagnostics.Contracts;
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using System.Text;
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namespace Open.Text
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{
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public static class StringBuilderExtensions
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{
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public static StringBuilder ToStringBuilder<T>(this in ReadOnlySpan<T> source)
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{
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var len = source.Length;
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var sb = new StringBuilder(len);
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for (var i = 0; i < len; i++)
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sb.Append(source[i]);
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return sb;
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}
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public static StringBuilder ToStringBuilder<T>(this IEnumerable<T> source)
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{
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var sb = new StringBuilder();
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foreach (var s in source)
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sb.Append(s);
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return sb;
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}
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public static StringBuilder ToStringBuilder<T>(this in ReadOnlySpan<T> source, in string separator)
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{
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var len = source.Length;
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if (len < 2 || string.IsNullOrEmpty(separator))
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return ToStringBuilder(source);
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var sb = new StringBuilder(2 * len - 1);
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sb.Append(source[0]);
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for (var i = 1; i < len; i++)
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{
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sb.Append(separator);
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sb.Append(source[i]);
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}
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return sb;
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}
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public static StringBuilder ToStringBuilder<T>(this in ReadOnlySpan<T> source, in char separator)
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{
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var len = source.Length;
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if (len < 2)
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return ToStringBuilder(source);
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var sb = new StringBuilder(2 * len - 1);
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sb.Append(source[0]);
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for (var i = 1; i < len; i++)
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{
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sb.Append(separator);
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sb.Append(source[i]);
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}
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return sb;
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}
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public static StringBuilder ToStringBuilder<T>(this IEnumerable<T> source, in string separator)
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{
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var sb = new StringBuilder();
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var first = true;
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foreach (var s in source)
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{
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if (first) first = false;
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else sb.Append(separator);
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sb.Append(s);
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}
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return sb;
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}
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public static StringBuilder ToStringBuilder<T>(this IEnumerable<T> source, in char separator)
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{
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var sb = new StringBuilder();
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var first = true;
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foreach (var s in source)
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{
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if (first) first = false;
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else sb.Append(separator);
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sb.Append(s);
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}
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return sb;
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}
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/// <summary>
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/// Shortcut for adding an array of values to a StringBuilder.
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/// </summary>
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public static StringBuilder AppendAll<T>(this StringBuilder target, IEnumerable<T> values, string separator = null)
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{
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if (target == null)
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throw new NullReferenceException();
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Contract.EndContractBlock();
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if (values != null)
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{
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if (string.IsNullOrEmpty(separator))
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{
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foreach (var value in values)
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target.Append(value);
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}
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else
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{
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foreach (var value in values)
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target.AppendWithSeparator(separator, value);
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}
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}
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return target;
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}
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/// <summary>
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/// Shortcut for adding an array of values to a StringBuilder.
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/// </summary>
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public static StringBuilder AppendAll<T>(this StringBuilder target, IEnumerable<T> values, in char separator)
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{
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if (target == null)
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throw new NullReferenceException();
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Contract.EndContractBlock();
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if (values != null)
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foreach (var value in values)
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target.AppendWithSeparator(in separator, value);
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return target;
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}
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/// <summary>
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/// Appends values to StringBuilder prefixing the provided separator.
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/// </summary>
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public static StringBuilder AppendWithSeparator<T>(this StringBuilder target, string separator, params T[] values)
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{
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if (target == null)
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throw new NullReferenceException();
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if (values == null || values.Length == 0)
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throw new ArgumentException("Parameters missing.");
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Contract.EndContractBlock();
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if (!string.IsNullOrEmpty(separator) && target.Length != 0)
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target.Append(separator);
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target.AppendAll(values);
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return target;
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}
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/// <summary>
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/// Appends values to StringBuilder prefixing the provided separator.
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/// </summary>
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public static StringBuilder AppendWithSeparator<T>(this StringBuilder target, in char separator, params T[] values)
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{
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if (target == null)
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throw new NullReferenceException();
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if (values == null || values.Length == 0)
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throw new ArgumentException("Parameters missing.");
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Contract.EndContractBlock();
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if (target.Length != 0)
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target.Append(separator);
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target.AppendAll(values);
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return target;
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}
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/// <summary>
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/// Appends a key/value pair to StringBuilder using the provided separators.
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/// </summary>
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public static void AppendWithSeparator<T>(this StringBuilder target, IDictionary<string, T> source, string key, string itemSeparator, string keyValueSeparator)
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{
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if (target == null)
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throw new NullReferenceException();
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if (source == null)
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throw new ArgumentNullException(nameof(source));
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if (key == null)
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throw new ArgumentNullException(nameof(key));
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if (itemSeparator == null)
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throw new ArgumentNullException(nameof(itemSeparator));
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if (keyValueSeparator == null)
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throw new ArgumentNullException(nameof(keyValueSeparator));
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Contract.EndContractBlock();
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if (source.TryGetValue(key, out var result))
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target
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.AppendWithSeparator(itemSeparator, key)
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.Append(keyValueSeparator)
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.Append(result);
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}
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}
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}

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