php-shell/examples/commandevents.php

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<?php
/*
* This example demonstrates how to use events to catch commands that
* have not been handled by any context or builtin.
*
*/
require_once __DIR__."/../vendor/autoload.php";
use NoccyLabs\Shell\Shell;
use NoccyLabs\Shell\Style;
use NoccyLabs\Shell\Context;
$myShell = new Shell();
// Add a listeners for various command aspects
$myShell->addListener(Shell::EVT_BAD_COMMAND, function ($e) {
echo "EVT_BAD_COMMAND:\n";
printf("| command: %s\n", $e->command);
printf("|_args: %s\n", join(" ",$e->args));
});
$myShell->addListener(Shell::EVT_BEFORE_COMMAND, function ($e) {
echo "EVT_BEFORE_COMMAND:\n";
printf("| command: %s\n", $e->command);
printf("|_args: %s\n", join(" ",$e->args));
});
$myShell->addListener(Shell::EVT_AFTER_COMMAND, function ($e) {
echo "EVT_AFTER_COMMAND:\n";
printf("| command: %s\n", $e->command);
printf("| args: %s\n", join(" ",$e->args));
printf("|_type: %s\n", $e->type);
});
// Set the initial prompt, not really needed.
$myShell->setPrompt("test>");
// Create an anonymous context and add a command
$ctx = $myShell->createContext("root");
$ctx->addCommand("hello", function ($who="World") {
echo "Hello {$who}!\n";
}, [ "help"=>"Say hello", "args"=>"who" ]);
// Run the shell
$myShell->run();