*

Extensions/StringExtensions.cs

@@ -9,7 +9,7 @@ public static class StringExtensions {
     /// 高速的 StartsWith。
     /// </summary>
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public static bool StartsWithF([AllowNull] this string value, string prefix, bool ignoreCase = false) {
+    public static bool StartsWithF(this string? value, string prefix, bool ignoreCase = false) {
         if (value is null) return false;
         return value.StartsWith(prefix, ignoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal);
     }
@@ -17,7 +17,7 @@ public static class StringExtensions {
     /// 高速的 EndsWith。
     /// </summary>
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public static bool EndsWithF([AllowNull] this string value, string suffix, bool ignoreCase = false) {
+    public static bool EndsWithF(this string? value, string suffix, bool ignoreCase = false) {
         if (value is null) return false;
         return value.EndsWith(suffix, ignoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal);
     }
@@ -155,13 +155,7 @@ public static class StringExtensions {
 
     #endregion
 
-    /// <summary>
-    /// 将第一个字符转换为大写，其余字符转换为小写。
-    /// </summary>
-    public static string Capitalize(this string word) {
-        if (string.IsNullOrEmpty(word)) return word;
-        return $"{word.Substring(0, 1).Upper()}{word.Substring(1).Lower()}";
-    }
+    #region 替换
 
     /// <summary>
     /// 替换字符串中的内容。
@@ -170,6 +164,26 @@ public static class StringExtensions {
     public static string ReplaceOnDemand(this string str, string oldValue, Func<string> newValue) =>
         str.Contains(oldValue) ? str.Replace(oldValue, newValue()) : str;
 
+    /// <summary>
+    /// 将字符串中的换行符统一替换为指定字符。
+    /// 若指定了 <paramref name="mergeMultiple"/>，会将多次换行合并成一次换行。
+    /// </summary>
+    public static string ReplaceLineEndings([DisallowNull] this string input, string newValue, bool mergeMultiple = false) =>
+        Regex.Replace(input,
+            mergeMultiple ? @"(?:\r\n|[\n\r\f\u0085\u2028\u2029])+" : @"\r\n|[\n\r\f\u0085\u2028\u2029]",
+            newValue.Replace("$", "$$"), // 避免识别成捕获组
+            RegexOptions.Compiled);
+
+    #endregion
+
+    /// <summary>
+    /// 将第一个字符转换为大写，其余字符转换为小写。
+    /// </summary>
+    public static string Capitalize(this string word) {
+        if (string.IsNullOrEmpty(word)) return word;
+        return $"{word.Substring(0, 1).Upper()}{word.Substring(1).Lower()}";
+    }
+
     /// <summary>
     /// 将字符串统一至某个长度。
     /// 过短则用 <paramref name="code"/> 将其左侧填充，过长则截取靠左的指定长度。
@@ -184,14 +198,4 @@ public static class StringExtensions {
     /// </summary>
     public static bool IsAsciiOnly([DisallowNull] this string input) => input.All(c => c < 128);
 
-    /// <summary>
-    /// 将字符串中的换行符统一替换为指定字符。
-    /// 若指定了 <paramref name="mergeMultiple"/>，会将多次换行合并成一次换行。
-    /// </summary>
-    public static string ReplaceLineEndings([DisallowNull] this string input, string newValue, bool mergeMultiple = false) => 
-        Regex.Replace(input, 
-            mergeMultiple ? @"(?:\r\n|[\n\r\f\u0085\u2028\u2029])+" : @"\r\n|[\n\r\f\u0085\u2028\u2029]", 
-            newValue.Replace("$", "$$"), // 避免识别成捕获组
-            RegexOptions.Compiled);
-
 }

Extensions/WpfExtensions.cs

@@ -0,0 +1,8 @@
+using System.Windows.Controls;
+
+namespace MeloongCore.Extensions;
+public static class WpfExtensions {
+
+    public static bool Any(this UIElementCollection? Arr) => Arr?.Count > 0;
+
+}

MeloongCore.csproj

@@ -22,6 +22,10 @@
 	  <PackageReference Include="System.ValueTuple" Version="4.6.1" />
 	</ItemGroup>
 
+	<ItemGroup>
+	  <Reference Include="PresentationFramework" />
+	</ItemGroup>
+
 	<ItemGroup>
 		<Using Include="System" />
 		<Using Include="System.ComponentModel" />

Utils/EscapeUtils.cs

@@ -32,41 +32,49 @@ public static class EscapeUtils {
     /// <summary>
     /// 正则表达式转义。等同于 Regex.Escape。
     /// </summary>
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static string? RegexEscape(string? value) => Regex.Escape(value);
 
     /// <summary>
     /// 正则表达式去转义。等同于 Regex.Unescape。
     /// </summary>
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static string? RegexUnescape(string? value) => Regex.Unescape(value);
 
     /// <summary>
     /// URL 转义。等同于 Uri.EscapeDataString。
     /// </summary>
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static string? UrlEscape(string? value) => Uri.EscapeDataString(value);
 
     /// <summary>
     /// URL 去转义。等同于 Uri.UnescapeDataString。
     /// </summary>
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static string? UrlUnescape(string? value) => Uri.UnescapeDataString(value);
 
     /// <summary>
     /// 表单转义。等同于 WebUtility.UrlEncode。
     /// </summary>
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static string? FormUrlEscape(string? value) => WebUtility.UrlEncode(value);
 
     /// <summary>
     /// 表单去转义。等同于 WebUtility.UrlDecode。
     /// </summary>
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static string? FormUrlUnescape(string? value) => WebUtility.UrlDecode(value);
 
     /// <summary>
     /// HTML 转义。等同于 WebUtility.HtmlEncode。
     /// </summary>
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static string? HtmlEscape(string? value) => WebUtility.HtmlEncode(value);
 
     /// <summary>
     /// HTML 去转义。等同于 WebUtility.HtmlDecode。
     /// </summary>
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static string? HtmlUnescape(string? value) => WebUtility.HtmlDecode(value);
 
 }