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<?php |
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namespace League\CLImate\Util\Reader; |
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use League\CLImate\Exceptions\RuntimeException; |
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use Seld\CliPrompt\CliPrompt; |
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class Stdin implements ReaderInterface |
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{ |
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protected $stdIn = false; |
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/** |
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* Read the line typed in by the user |
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* |
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* @return string |
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*/ |
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public function line() |
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{ |
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return trim(fgets($this->getStdIn(), 1024)); |
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} |
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/** |
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* Read from STDIN until EOF (^D) is reached |
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* |
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* @return string |
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*/ |
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public function multiLine() |
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{ |
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return trim(stream_get_contents($this->getStdIn())); |
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} |
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/** |
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* Read one character |
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* |
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* @param int $count |
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* |
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* @return string |
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*/ |
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public function char($count = 1) |
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{ |
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return fread($this->getStdIn(), $count); |
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} |
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/** |
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* Read the line, but hide what the user is typing |
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* |
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* @return string |
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*/ |
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public function hidden() |
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{ |
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return CliPrompt::hiddenPrompt(); |
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} |
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/** |
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* Return a valid STDIN, even if it previously EOF'ed |
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* |
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* Lazily re-opens STDIN after hitting an EOF |
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* |
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* @return resource |
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* @throws RuntimeException |
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*/ |
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protected function getStdIn() |
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{ |
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if ($this->stdIn && !feof($this->stdIn)) { |
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return $this->stdIn; |
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} |
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try { |
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$this->setStdIn(); |
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} catch (\Error $e) { |
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throw new RuntimeException('Unable to read from STDIN', 0, $e); |
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} |
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return $this->stdIn; |
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} |
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/** |
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* Attempt to set the stdin property |
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* |
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* @return void |
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* @throws RuntimeException |
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*/ |
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protected function setStdIn() |
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{ |
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if ($this->stdIn !== false) { |
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fclose($this->stdIn); |
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} |
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$this->stdIn = fopen('php://stdin', 'r'); |
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if (!$this->stdIn) { |
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throw new RuntimeException('Unable to read from STDIN'); |
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} |
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} |
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} |
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thephpleague /
climate
