ansi coloring for haxelib help

Author: ninjamuffin99

src/haxelib/client/Main.hx

@@ -40,6 +40,7 @@ using StringTools;
 using Lambda;
 using haxelib.MetaData;
 using haxelib.api.RepoReformatter;
+using haxelib.client.ansi.Ansi;
 
 @:structInit
 class CommandInfo {
@@ -151,8 +152,12 @@ class Main {
 		var maxLength = 0;
 
 		inline function checkLength(line:String)
-			if (line.length > maxLength)
-				maxLength = line.length;
+		{
+			var regexp = ~/\x1B(?:[@-Z\\-_]|\[[0-?]*[ -\]*[@-~])/g;
+			if (regexp.replace(line, '').length > maxLength)
+				maxLength = regexp.replace(line, '').length;
+		}
+			
 
 		function generateLines(data:List<UsageData>, generate:(UsageData -> String)):Array<{usage:String, description:String}>
 			return [
@@ -162,27 +167,28 @@ class Main {
 					{usage: line, description: item.description};
 				}];
 
-		final switchLines = generateLines(Args.generateSwitchDocs(), (flag) -> '--${flag.name}');
-		final optionLines = generateLines(Args.generateOptionDocs(), (flag) -> combineAliases(flag.name, flag.aliases) + ' ${flag.parameter}');
+		final switchLines = generateLines(Args.generateSwitchDocs(), (flag) -> '--${flag.name}'.fg(ORANGE).attr(INTENSITY_BOLD).reset());
+		final optionLines = generateLines(Args.generateOptionDocs(), (flag) -> combineAliases(flag.name, flag.aliases).fg(ORANGE).attr(INTENSITY_BOLD).reset() + ' ${flag.parameter}'.fg(ORANGE).reset());
 
 		final categories = new Map<String, Array<{usage:String, description:String}>>();
 		for (command in Args.generateCommandDocs()) {
 			checkLength(command.name);
 			final categoryName = command.category.getName();
 			if (!categories.exists(categoryName))
 				categories[categoryName] = [];
-			categories[categoryName].push({usage: command.name, description: command.description});
+			categories[categoryName].push({usage: '${command.name.fg(ORANGE).attr(INTENSITY_BOLD).reset()}', description: command.description});
 		}
 
 		Cli.print('Haxe Library Manager $VERSION - (c)2006-2025 Haxe Foundation');
-		Cli.print("  Usage: haxelib [command] [options]");
+		Cli.print('  Usage: '.fg(DARK_ORANGE).attr(INTENSITY_BOLD).reset() + 'haxelib '.fg(ORANGE).attr(INTENSITY_BOLD).reset() + '[command] '.fg(ORANGE) +  '[options]'.reset());
 
 		inline function display(type:String, lines:Array<{usage:String, description:String}>) {
-			Cli.print('  $type');
+			Cli.print('  $type'.fg(DARK_ORANGE).attr(INTENSITY_BOLD).reset());
 			for (line in lines) {
 				final padded = line.usage.rpad(' ', maxLength);
-				Cli.print('    $padded : ${line.description}');
+				Cli.print('   $padded ${line.description}');
 			}
+			Cli.print('');
 		}
 
 		for (name => commands in categories)

src/haxelib/client/ansi/Ansi.hx

@@ -0,0 +1,69 @@
+package haxelib.client.ansi;
+
+
+ /**
+  * https://en.wikipedia.org/wiki/ANSI_escape_code
+  * http://www.tldp.org/HOWTO/Bash-Prompt-HOWTO/c327.html
+  * http://ascii-table.com/ansi-escape-sequences.php
+  */
+ class Ansi {
+ 
+    /**
+     * ANSI escape sequence header
+     */
+    public static inline final ESC = "\x1B[";
+
+    inline
+    public static function reset(str:String):String
+       return str + ESC + "0m";
+ 
+ 
+    /**
+     * sets the given text attribute
+     */
+    inline
+    public static function attr(str:String, attr:AnsiTextAttribute):String
+       return ESC + (attr) + "m" + str;
+ 
+ 
+    /**
+     * set the text background color
+     *
+     * <pre><code>
+     * >>> Ansi.bg(RED) == "\x1B[41m"
+     * </code></pre>
+     */
+    inline
+    public static function bg(str: String, color:AnsiColor):String
+       return ESC + "4" + color + "m" + str;
+ 
+ 
+    /**
+     * Clears the screen and moves the cursor to the home position
+     */
+    inline
+    public static function clearScreen():String
+       return ESC + "2J";
+ 
+ 
+    /**
+     * Clear all characters from current position to the end of the line including the character at the current position
+     */
+    inline
+    public static function clearLine():String
+       return ESC + "K";
+ 
+ 
+    /**
+     * set the text foreground color
+     *
+     * <pre><code>
+     * >>> Ansi.fg(RED) == "\x1B[31m"
+     * </code></pre>
+     */
+    inline
+    public static function fg(str: String, color:AnsiColor):String
+       return ESC + "38;5;" + color + "m" + str;
+ 
+ }
+ 

src/haxelib/client/ansi/AnsiColor.hx

@@ -0,0 +1,22 @@
+/*
+ * SPDX-FileCopyrightText: © Vegard IT GmbH (https://vegardit.com) and contributors
+ * SPDX-FileContributor: Sebastian Thomschke, Vegard IT GmbH
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ package haxelib.client.ansi;
+
+#if (haxe_ver < 4.3) @:enum #else enum #end
+abstract AnsiColor(Int) {
+   final BLACK = 0;
+   final RED = 1;
+   final GREEN = 2;
+   final YELLOW = 3;
+   final BLUE = 4;
+   final MAGENTA = 5;
+   final CYAN = 6;
+   final WHITE = 7;
+   final DEFAULT = 9;
+   final ORANGE = 216;
+   final DARK_ORANGE = 215;
+   final ORANGE_BRIGHT = 208;
+}

src/haxelib/client/ansi/AnsiTextAttribute.hx

@@ -0,0 +1,70 @@
+/*
+ * SPDX-FileCopyrightText: © Vegard IT GmbH (https://vegardit.com) and contributors
+ * SPDX-FileContributor: Sebastian Thomschke, Vegard IT GmbH
+ * SPDX-License-Identifier: Apache-2.0
+ */
+package haxelib.client.ansi;
+
+/**
+ * https://en.wikipedia.org/wiki/ANSI_escape_code#CSI_codes
+ */
+#if (haxe_ver < 4.3) @:enum #else enum #end
+abstract AnsiTextAttribute(Int) {
+
+   /**
+    * All colors/text-attributes off
+    */
+   final RESET = 0;
+
+   final INTENSITY_BOLD = 1;
+
+   /**
+    * Not widely supported.
+    */
+   final INTENSITY_FAINT = 2;
+
+   /**
+    * Not widely supported.
+    */
+   final ITALIC = 3;
+
+   final UNDERLINE_SINGLE = 4;
+
+   final BLINK_SLOW = 5;
+
+   /**
+    * Not widely supported.
+    */
+   final BLINK_FAST = 6;
+
+   final NEGATIVE = 7;
+
+   /**
+    * Not widely supported.
+    */
+   final HIDDEN = 8;
+
+   /**
+    * Not widely supported.
+    */
+   final STRIKETHROUGH = 9;
+
+   /**
+    * Not widely supported.
+    */
+   final UNDERLINE_DOUBLE = 21;
+
+   final INTENSITY_OFF = 22;
+
+   final ITALIC_OFF = 23;
+
+   final UNDERLINE_OFF = 24;
+
+   final BLINK_OFF = 25;
+
+   final NEGATIVE_OFF = 27;
+
+   final HIDDEN_OFF = 28;
+
+   final STRIKTHROUGH_OFF = 29;
+}