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Returns the offset past a quoted run of SQL.

Parameters

string $sql: The SQL to scan.

int $offset: Offset to scan from.

Return value

int|null Offset of the first character after the closing quote, or NULL if $offset does not open a quoted run or the run is unterminated.

File

core/modules/sqlite/src/Driver/Database/sqlite/Schema.php, line 749

Class

Schema

SQLite implementation of \Drupal\Core\Database\Schema.

Namespace

Drupal\sqlite\Driver\Database\sqlite

Code

protected function skipQuotedRun(string $sql, int $offset) : ?int {
  $close = match ($sql[$offset] ?? '') {  "'" => "'",
    '"' => '"',
    '`' => '`',
    '[' => ']',
    default => NULL,
  
  };
  if ($close === NULL) {
    return NULL;
  }
  $length = strlen($sql);
  for ($i = $offset + 1; $i < $length; $i++) {
    if ($sql[$i] !== $close) {
      continue;
    }
    // A doubled quote is an escaped one. Brackets have no escape form.
    if ($close !== ']' && ($sql[$i + 1] ?? '') === $close) {
      $i++;
      continue;
    }
    return $i + 1;
  }
  return NULL;
}

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