Feature: Improve run command (Ctrl+Shift+P)

Source/NETworkManager.Localization/Resources/Strings.resx

@@ -4857,4 +4857,34 @@ Cloudflare may log your IP address and network information. See Cloudflare's pri
   <data name="Resource_PublicSuffixList_Description" xml:space="preserve">
     <value>List of public suffixes (e.g. "co.uk") from publicsuffix.org (MPL-2.0), which is used to get the registered domain of a hostname for RDAP queries.</value>
   </data>
+  <data name="ProfileXNotFound" xml:space="preserve">
+    <value>Profile "{0}" not found!</value>
+  </data>
+  <data name="SeveralProfilesAreNamedXSelectOne" xml:space="preserve">
+    <value>Several profiles are named "{0}", select one!</value>
+  </data>
+  <data name="EnterACommand" xml:space="preserve">
+    <value>Enter a command!</value>
+  </data>
+  <data name="UnknownCommandX" xml:space="preserve">
+    <value>Unknown command "{0}"!</value>
+  </data>
+  <data name="CommandXDoesNotAcceptArguments" xml:space="preserve">
+    <value>The command "{0}" does not accept arguments!</value>
+  </data>
+  <data name="CommandXDoesNotSupportProfiles" xml:space="preserve">
+    <value>The command "{0}" does not support profiles!</value>
+  </data>
+  <data name="EnterTheNameOfAProfileAfterAt" xml:space="preserve">
+    <value>Enter the name of a profile after "@"!</value>
+  </data>
+  <data name="UnknownArgumentX" xml:space="preserve">
+    <value>Unknown argument "{0}"!</value>
+  </data>
+  <data name="RunCommand" xml:space="preserve">
+    <value>Run command</value>
+  </data>
+  <data name="Recent" xml:space="preserve">
+    <value>Recent</value>
+  </data>
 </root>

Source/NETworkManager.Models/RunCommand/RunCommandArgument.cs

@@ -0,0 +1,12 @@
+namespace NETworkManager.Models.RunCommand;
+
+/// <summary>
+///     Second argument of a run command after the target.
+/// </summary>
+public enum RunCommandArgument
+{
+    None,
+    Ports,
+    DNSServer,
+    Broadcast
+}

Source/NETworkManager.Models/RunCommand/RunCommandDefinition.cs

@@ -0,0 +1,68 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace NETworkManager.Models.RunCommand;
+
+/// <summary>
+///     Command of the run command dialog (e.g. "dnslookup" with the alias "dns"), which opens an application or the
+///     settings.
+/// </summary>
+public sealed class RunCommandDefinition
+{
+    /// <summary>
+    ///     Whether the command opens an application or the settings.
+    /// </summary>
+    public RunCommandType Type { get; init; }
+
+    /// <summary>
+    ///     Application to open (<see cref="ApplicationName.None" /> for the settings).
+    /// </summary>
+    public ApplicationName Application { get; init; }
+
+    /// <summary>
+    ///     Command (lowercase, e.g. "dnslookup").
+    /// </summary>
+    public string Command { get; init; }
+
+    /// <summary>
+    ///     Short forms of the command (lowercase, e.g. "dns", "nslookup").
+    /// </summary>
+    public IReadOnlyList<string> Aliases { get; init; } = [];
+
+    /// <summary>
+    ///     The command accepts a target (e.g. host, IP range, query).
+    /// </summary>
+    public bool SupportsTarget { get; init; }
+
+    /// <summary>
+    ///     The command accepts a profile ("@name") instead of a target.
+    /// </summary>
+    public bool SupportsProfile { get; init; }
+
+    /// <summary>
+    ///     Second argument after the target (e.g. ports or DNS server).
+    /// </summary>
+    public RunCommandArgument Argument { get; init; }
+
+    /// <summary>
+    ///     Type keywords that can follow the target (lowercase, e.g. "a", "aaaa" for the DNS lookup).
+    /// </summary>
+    public IReadOnlyList<string> Types { get; init; } = [];
+
+    /// <summary>
+    ///     Syntax of the arguments for the hint (e.g. "&lt;hosts&gt; [server] [type]"), empty if there are none.
+    /// </summary>
+    public string Syntax { get; init; } = string.Empty;
+
+    /// <summary>
+    ///     Checks if the text is the command or one of its aliases (case-insensitive).
+    /// </summary>
+    /// <param name="text">Command text.</param>
+    /// <returns>True if the text matches.</returns>
+    public bool Matches(string text)
+    {
+        return string.Equals(Command, text, StringComparison.OrdinalIgnoreCase) ||
+               Aliases.Any(x => string.Equals(x, text, StringComparison.OrdinalIgnoreCase));
+    }
+}

Source/NETworkManager.Models/RunCommand/RunCommandParseError.cs

@@ -0,0 +1,15 @@
+namespace NETworkManager.Models.RunCommand;
+
+/// <summary>
+///     Errors of a run command input.
+/// </summary>
+public enum RunCommandParseError
+{
+    None,
+    Empty,
+    UnknownCommand,
+    NoArguments,
+    NoProfiles,
+    MissingProfileName,
+    UnknownArgument
+}

Source/NETworkManager.Models/RunCommand/RunCommandParseResult.cs

@@ -0,0 +1,63 @@
+namespace NETworkManager.Models.RunCommand;
+
+/// <summary>
+///     Result of <see cref="RunCommandParser.Parse" />.
+/// </summary>
+public sealed class RunCommandParseResult
+{
+    /// <summary>
+    ///     Command that matches the first word, or null if there is none.
+    /// </summary>
+    public RunCommandDefinition Command { get; init; }
+
+    /// <summary>
+    ///     First word as typed.
+    /// </summary>
+    public string CommandText { get; init; } = string.Empty;
+
+    /// <summary>
+    ///     Target (e.g. "10.0.0.1;10.0.0.2"), or null if there is none.
+    /// </summary>
+    public string Target { get; init; }
+
+    /// <summary>
+    ///     Name of the profile ("@name"), or null if no profile is used. Empty if only "@" was typed.
+    /// </summary>
+    public string ProfileName { get; init; }
+
+    /// <summary>
+    ///     Second argument (e.g. ports or DNS server), or null if there is none.
+    /// </summary>
+    public string Argument { get; init; }
+
+    /// <summary>
+    ///     Type keyword in lowercase (e.g. "aaaa"), or null if there is none.
+    /// </summary>
+    public string Type { get; init; }
+
+    /// <summary>
+    ///     Part of the input that is being typed.
+    /// </summary>
+    public RunCommandPosition Position { get; init; }
+
+    /// <summary>
+    ///     Word that is being typed (empty after a space), used to filter the suggestions.
+    /// </summary>
+    public string CurrentWord { get; init; } = string.Empty;
+
+    /// <summary>
+    ///     Input without the word that is being typed (e.g. "dns borntoberoot.net " for "dns borntoberoot.net aa"),
+    ///     used to complete a suggestion.
+    /// </summary>
+    public string InputBeforeCurrentWord { get; init; } = string.Empty;
+
+    /// <summary>
+    ///     Error, if the input can't be run.
+    /// </summary>
+    public RunCommandParseError Error { get; init; }
+
+    /// <summary>
+    ///     Value the error refers to (e.g. the unknown command or argument).
+    /// </summary>
+    public string ErrorValue { get; init; }
+}