silverstripe-framework/Dev/SapphireREPL.php

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<?php
namespace SilverStripe\Dev;
use SilverStripe\Control\Controller;
use SilverStripe\Control\Director;
use Exception;
/* Don't actually define these, since it'd clutter up the namespace.
define('1',E_ERROR);
define('2',E_WARNING);
define('4',E_PARSE);
define('8',E_NOTICE);
define('16',E_CORE_ERROR);
define('32',E_CORE_WARNING);
define('64',E_COMPILE_ERROR);
define('128',E_COMPILE_WARNING);
define('256',E_USER_ERROR);
define('512',E_USER_WARNING);
define('1024',E_USER_NOTICE);
define('2048',E_STRICT);
define('4096',E_RECOVERABLE_ERROR);
define('8192',E_DEPRECATED);
define('16384',E_USER_DEPRECATED);
define('30719',E_ALL);
*/
/**
*/
class SapphireREPL extends Controller {
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private static $allowed_actions = array(
'index'
);
public function error_handler( $errno, $errstr, $errfile, $errline, $errctx ) {
// Ignore unless important error
if ( ($errno & ~( 2048 | 8192 | 16384 )) == 0 ) return ;
// Otherwise throw exception to handle in REPL loop
throw new Exception(sprintf("%s:%d\r\n%s", $errfile, $errline, $errstr));
}
public function index() {
if(!Director::is_cli()) {
return "The SilverStripe Interactive Command-line doesn't work in a web browser."
. " Use 'sake interactive' from the command-line to run.";
}
/* Try using PHP_Shell if it exists */
@include 'php-shell-cmd.php' ;
/* Fall back to our simpler interface */
if( empty( $__shell ) ) {
set_error_handler(array($this, 'error_handler'));
echo "SilverStripe Interactive Command-line (REPL interface). Type help for hints.\n\n";
while(true) {
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echo CLI::text("?> ", "cyan");
echo CLI::start_colour("yellow");
$command = trim(fgets(STDIN, 4096));
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echo CLI::end_colour();
if ( $command == 'help' || $command == '?' ) {
print "help or ? to exit\n" ;
print "quit or \q to exit\n" ;
print "install PHP_Shell for a more advanced interface with"
. " auto-completion and readline support\n\n" ;
continue ;
}
if ( $command == 'quit' || $command == '\q' ) break ;
// Simple command processing
if(substr($command,-1) == ';') $command = substr($command,0,-1);
$is_print = preg_match('/^\s*print/i', $command);
$is_return = preg_match('/^\s*return/i', $command);
if(!$is_print && !$is_return) $command = "return ($command)";
$command .= ";";
try {
$result = eval($command);
if(!$is_print) print_r($result);
echo "\n";
}
catch( Exception $__repl_exception ) {
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echo CLI::start_colour("red");
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printf( '%s (code: %d) got thrown'.PHP_EOL,
get_class($__repl_exception),
$__repl_exception->getCode() );
print $__repl_exception;
echo "\n";
}
}
}
}
}