- First commit, work done on form input

src/Form/UiInput.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Picea\Ui\Form;
+
+use Picea\Ui\Common\UiElement;
+use Picea\Extension\Extension;
+
+class UiInput extends UiElement implements Extension {
+
+    public string $token = "ui.input";
+
+    public string $tag = "input";
+
+    public array $attributes = [
+       'class' => 'ui-input',
+    ];
+
+    public function parse(/*\Picae\Compiler\Context*/ &$context, ?string $arguments, string $token) : string
+    {
+        list($name, $value, $options) = array_pad(explode(',', $arguments), 3, null);
+
+        $this->attributes['name'] = $name;
+        $this->setValue($value);
+        $this->attributes($this->parseAttributes($options));
+        return $this->render();
+    }
+
+    protected function parseAttributes(string $options) : array
+    {
+        if ( $options ?? false ) {
+            $attributes = eval($options);
+
+            if ( ! is_array($attributes) ) {
+               throw new InvalidArgumentException("Given options `$options` is not a valid attributes array.");
+            }
+
+            return $attributes;
+        }
+
+        return [];
+    }
+
+    protected function setValue($value) : void
+    {
+        $this->attributes['value'] = $value;
+    }
+}