29 lines
853 B
PHP
29 lines
853 B
PHP
<?php
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namespace App\Services\Documents;
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class TokenScanner
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{
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// Allow nested tokens like client.person.full_name or custom.order-id
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// Pattern: entity(.[subentity])* . attribute
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private const REGEX_DOUBLE = '/{{\s*([a-zA-Z0-9_]+(?:\.[a-zA-Z0-9_]+)*\.[a-zA-Z0-9_.-]+)\s*}}/';
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private const REGEX_SINGLE = '/\{\s*([a-zA-Z0-9_]+(?:\.[a-zA-Z0-9_]+)*\.[a-zA-Z0-9_.-]+)\s*\}/';
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/**
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* @return array<int,string>
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*/
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public function scan(string $content): array
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{
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$out = [];
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if (preg_match_all(self::REGEX_DOUBLE, $content, $m1) && ! empty($m1[1])) {
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$out = array_merge($out, $m1[1]);
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}
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if (preg_match_all(self::REGEX_SINGLE, $content, $m2) && ! empty($m2[1])) {
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$out = array_merge($out, $m2[1]);
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}
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return array_values(array_unique($out));
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}
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}
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