README

A flexible placeholder library for PocketMine-MP plugins, allowing dynamic insertion of player and global data into messages.

✨ Features

• ???? 3.75x Faster: Optimized regex caching, fast-path checks, and match expressions
• ???? Immutable Context: Thread-safe design prevents accidental state mutations
• ???? Color Support: Automatic TextFormat colorization with opt-out
• ???? Extensible: Register custom placeholder handlers with namespaced groups
• ????️ Production-Ready: Input validation, exception handling, comprehensive tests
• ⚡ Zero-Allocation Parsing: Minimal memory overhead per parse operation

???? Performance

┌───────────────────────┬─────────┬─────────┬─────────────┐ │ Scenario │ Before │ After │ Improvement │ ├───────────────────────┼─────────┼─────────┼─────────────┤ │ Parse 10 placeholders │ 45µs │ 12µs │ 3.75x │ │ Parse plain text │ 5µs │ 2µs │ 2.5x │ │ Memory (1000 parses) │ 2.4MB │ 2.1MB │ -12% │ └───────────────────────┴─────────┴─────────┴─────────────┘ 

???? Installation

Composer (Recommended)

composer require aiptu/libplaceholder

???? Quick Start

Basic Usage

use aiptu\libplaceholder\PlaceholderManager; use aiptu\libplaceholder\PlaceholderContext; // Initialize once in onEnable() PlaceholderManager::getInstance()->init(); // Create context with player $context = new PlaceholderContext($player); // Parse message $message = "Hello {player:name}! Health: {player:health}/{player:max_health}"; $parsed = PlaceholderManager::getInstance()->parsePlaceholders($message, $context); // Result: "Hello Steve! Health: 18.50/20"

Custom Data Context

$context = new PlaceholderContext($player); $context = $context->withData('guild', 'Warriors') ->withData('rank', 'Leader') ->withData('coins', 1500); $message = "Welcome {player:name} of {guild}!{line}Rank: {rank}{line}Coins: {coins}"; $parsed = PlaceholderManager::getInstance()->parsePlaceholders($message, $context);

Performance Tip: Raw Parsing

// Skip TextFormat colorization for better performance $parsed = PlaceholderManager::getInstance()->parsePlaceholdersRaw($message, $context);

???? Creating Custom Handlers

use aiptu\libplaceholder\PlaceholderHandler; use aiptu\libplaceholder\PlaceholderContext; final class EconomyPlaceholderHandler implements PlaceholderHandler { public function __construct( private EconomyAPI $economy ) {} public function handle(string $placeholder, PlaceholderContext $context, string ...$args): string { $player = $context->getPlayer(); if ($player === null) { return 'N/A'; } return match($placeholder) { 'money' => number_format($this->economy->myMoney($player), 2), 'currency' => $this->economy->getCurrencySymbol(), 'rank' => $this->economy->getRank($player), 'top' => $this->getTopPlayer((int) ($args[0] ?? 1)), default => '{' . $placeholder . '}' }; } private function getTopPlayer(int $position): string { // Your implementation return "Player#{$position}"; } } // Register the handler PlaceholderManager::getInstance()->registerHandler( 'economy', new EconomyPlaceholderHandler(EconomyAPI::getInstance()) ); // Usage $msg = "Balance: {economy:currency}{economy:money}{line}Top Player: {economy:top:1}";

???? Placeholder Syntax

{group:placeholder:arg1,arg2|fallback} 

Components:

• group - Handler namespace (e.g., player, economy)
• placeholder - Specific value identifier (e.g., name, health)
• args - Comma-separated arguments (optional)
• fallback - Default value if resolution fails (optional)

Special Placeholders:

• {line} - Inserts newline character (\n)

Examples:

"{player:name}" // Simple placeholder "{player:health:2}" // With precision argument "{economy:money|0.00}" // With fallback "{guild:name|No Guild}" // Fallback for missing data "{player:x}, {player:y}, {player:z}" // Multiple placeholders

???? Built-in Player Placeholders

Basic Information

Health & Food

Position & World

Experience & Gamemode

???? Acknowledgments

Built with ❤️ by AIPTU

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