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<?php /* * This file is part of Psy Shell. * * (c) 2012-2026 Justin Hileman * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Psy\Readline\Interactive\Suggestion; /** * Shared identifier extraction for suggestion/frecency logic. */ final class WordExtractor { /** * Extract normalized identifier-like words from text. * * @return string[] */ public static function extractNormalizedIdentifiers(string $text): array { $words = []; \preg_match_all( '/(?:\$)?[a-zA-Z_\x80-\xff][a-zA-Z0-9_\x80-\xff]*/u', $text, $matches ); foreach ($matches[0] as $word) { $normalized = \strtolower(\ltrim($word, '$')); if (\strlen($normalized) < 3) { continue; } $words[] = $normalized; } return \array_unique($words); } }
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