added Helpers::compare()

Author: dg

src/Utils/Helpers.php

@@ -82,4 +82,23 @@ public static function getSuggestion(array $possibilities, string $value): ?stri
 
 		return $best;
 	}
+
+
+	/**
+	 * Compares two values. Recognizes operators: >, >=, <, <=, =, ==, ===, !=, !==, <>
+	 */
+	public static function compare(mixed $l, string $operator, mixed $r): bool
+	{
+		return match ($operator) {
+			'>' => $l > $r,
+			'>=' => $l >= $r,
+			'<' => $l < $r,
+			'<=' => $l <= $r,
+			'=', '==' => $l == $r,
+			'===' => $l === $r,
+			'!=', '<>' => $l != $r,
+			'!==' => $l !== $r,
+			default => throw new Nette\InvalidArgumentException("Unknown operator '$operator'"),
+		};
+	}
 }

tests/Utils/Helpers.compare().phpt

@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+use Nette\Utils\Helpers;
+use Tester\Assert;
+
+require __DIR__ . '/../bootstrap.php';
+
+
+Assert::false(Helpers::compare(1, '>', 1));
+Assert::false(Helpers::compare(1, '>', 2));
+Assert::false(Helpers::compare(1, '<', 1));
+Assert::true(Helpers::compare(1, '<', 2));
+
+Assert::true(Helpers::compare(1, '>=', 1));
+Assert::false(Helpers::compare(1, '>=', 2));
+Assert::true(Helpers::compare(1, '<=', 1));
+Assert::true(Helpers::compare(1, '<=', 2));
+
+Assert::true(Helpers::compare(1, '=', 1));
+Assert::true(Helpers::compare(1.0, '=', 1));
+Assert::false(Helpers::compare(1, '=', 2));
+
+Assert::true(Helpers::compare(1, '==', 1));
+Assert::true(Helpers::compare(1.0, '==', 1));
+Assert::false(Helpers::compare(1, '==', 2));
+
+Assert::true(Helpers::compare(1, '===', 1));
+Assert::false(Helpers::compare(1.0, '===', 1));
+Assert::false(Helpers::compare(1, '===', 2));
+
+Assert::false(Helpers::compare(1, '<>', 1));
+Assert::false(Helpers::compare(1.0, '<>', 1));
+Assert::true(Helpers::compare(1, '<>', 2));
+
+Assert::false(Helpers::compare(1, '!=', 1));
+Assert::false(Helpers::compare(1.0, '!=', 1));
+Assert::true(Helpers::compare(1, '!=', 2));
+
+Assert::false(Helpers::compare(1, '!==', 1));
+Assert::true(Helpers::compare(1.0, '!==', 1));
+Assert::true(Helpers::compare(1, '!==', 2));
+
+Assert::exception(function () {
+	Helpers::compare(1, 'x', 1);
+}, Nette\InvalidArgumentException::class, "Unknown operator 'x'");