Code cleanup, better examples, tasks added

examples/basic.php

@@ -30,7 +30,7 @@ $myShell->setPrompt("test>");
 $ctx = $myShell->createContext("root");
 $ctx->addCommand("hello", function () {
     echo "Hello World!\n";
-});
+}, [ 'descr'=>'Say hello' ]);
 
 // Run the shell
 $myShell->run();

examples/commandevents.php

@@ -0,0 +1,44 @@
+<?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 () {
+    echo "Hello World!\n";
+});
+
+// Run the shell
+$myShell->run();

examples/tasks.php

@@ -0,0 +1,60 @@
+<?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;
+use NoccyLabs\Shell\TaskInterface;
+
+class MyTask implements TaskInterface
+{
+    protected $start;
+    protected $last;
+    public function __construct()
+    {
+        $this->start = time();
+    }
+    public function update()
+    {
+        if ($this->last < time()) {
+            echo date("H:i:s")."\n";
+            $this->last = time();
+        }
+    }
+    public function isValid()
+    {
+        return (time() - $this->start < 5);
+    }
+}
+
+$myShell = new Shell();
+
+$myShell->addListener(Shell::EVT_TASK_CREATED, function ($e) {
+    echo "EVT_TASK_CREATED:\n";
+    printf("|_task: %s\n", get_class($e->task));
+});
+$myShell->addListener(Shell::EVT_TASK_DESTROYED, function ($e) {
+    echo "EVT_TASK_DESTROYED:\n";
+    printf("|_task: %s\n", get_class($e->task));
+});
+
+
+$myShell->addTask(new MyTask());
+
+// Set the initial prompt, not really needed.
+$myShell->setPrompt("test>");
+
+// Create an anonymous context and add a command
+$ctx = $myShell->createContext("root");
+$ctx->addCommand("hello", function () {
+    echo "Hello World!\n";
+});
+
+// Run the shell
+$myShell->run();