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<?php |
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/** |
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* CSVelte: Slender, elegant CSV for PHP |
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* |
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* Inspired by Python's CSV module and Frictionless Data and the W3C's CSV |
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* standardization efforts, CSVelte was written in an effort to take all the |
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* suck out of working with CSV. |
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* |
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* @copyright Copyright (c) 2018 Luke Visinoni |
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* @author Luke Visinoni <[email protected]> |
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* @license See LICENSE file (MIT license) |
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*/ |
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namespace CSVelte\Traits; |
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use CSVelte\Exception\IOException; |
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use CSVelte\Exception\NotYetImplementedException; |
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/** |
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* IO IsSeekable Trait. |
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* |
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* Seek methods shared between CSVelte\IO classes. |
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*/ |
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trait IsSeekable |
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{ |
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/** |
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* Seek to specific line (beginning). |
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* |
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* Seek to the line specified by $offset, starting from the $whence line. |
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* |
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* @param int $offset Offset to seek to |
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* @param int $whence Position from whence to seek from |
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* @param string $eol The line terminator string/char |
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* |
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* @throws NotYetImplementedException |
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* |
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* @return bool True if successful |
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*/ |
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public function seekLine($offset, $whence = SEEK_SET, $eol = PHP_EOL) |
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{ |
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throw new NotYetImplementedException('This method not yet implemented.'); |
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} |
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abstract public function isSeekable(); |
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abstract public function seek($offset, $whence = SEEK_SET); |
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/** |
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* Assert that this file/stream object is readable. |
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* |
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* @throws IOException |
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*/ |
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protected function assertIsSeekable() |
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{ |
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if (!$this->isSeekable()) { |
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throw new IOException('Stream not seekable', IOException::ERR_NOT_SEEKABLE); |
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} |
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} |
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} |
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nozavroni /
csvelte
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.