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<?php |
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/** |
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* Cli |
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* |
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* @copyright Copyright (c) Gjero Krsteski (http://krsteski.de) |
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* @license http://opensource.org/licenses/MIT MIT License |
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*/ |
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namespace Pimf\Cli; |
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/** |
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* Responsible for accessing I/O streams that allow access to PHP's own input and output streams. |
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* |
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* @package Cli |
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* @author Gjero Krsteski <[email protected]> |
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*/ |
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class Std |
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{ |
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/** |
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* @var resource |
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*/ |
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private $handle; |
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/** |
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* @param string $stream |
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*/ |
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public function __construct($stream = 'php://stdin') |
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{ |
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$this->handle = fopen($stream, 'r'); |
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} |
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/** |
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* @return string |
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*/ |
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public function value() |
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{ |
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return substr(fgets($this->handle, 1024), 0, -1); |
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} |
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public function __destruct() |
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{ |
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fclose($this->handle); |
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} |
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/** |
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* Allow direct access to the corresponding input stream of the PHP process. |
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* |
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* @param string $prompt |
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* @param string $validation A regex pattern |
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* |
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* <code> |
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* |
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* Have a look at the examples for $validation: |
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* |
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* Regular Expression | Will match... |
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* ------------------------------------------------------------- |
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* .* | Not empty |
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* foo | The string "foo" |
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* ^foo | "foo" at the start of a string |
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* foo$ | "foo" at the end of a string |
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* ^foo$ | "foo" when it is alone on a string |
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* [abc] | a, b, or c |
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* [a-z] | Any lowercase letter |
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* [^A-Z] | Any character that is not a uppercase letter |
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* (gif|jpg) | Matches either "gif" or "jpeg" |
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* [a-z]+ | One or more lowercase letters |
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* [0-9\.\-] | Аny number, dot, or minus sign |
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* |
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* </code> |
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* |
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* @return string |
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*/ |
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public function read($prompt, $validation = "/.*/") |
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{ |
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$value = ''; |
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while (true) { |
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$this->view("Please enter a " . $prompt . ":"); |
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$value = $this->value(); |
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if ($this->valid($validation, $value)) { |
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break; |
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} |
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$this->view("[ Value format for " . $prompt . " is invalid! ]"); |
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} |
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return $value; |
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} |
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/** |
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* @param string $validation A regex pattern |
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* @param string $value |
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* |
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* @return bool |
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*/ |
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public function valid($validation, $value) |
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{ |
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return strlen($value) > 0 && preg_match($validation, $value); |
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} |
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/** |
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* @param string $prompt |
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*/ |
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public function view($prompt) |
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{ |
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echo $prompt . "\n"; |
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} |
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} |
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gjerokrsteski /
pimf-framework
