finished default parser

src/Domain/Modules/Interpreter/Lexicon/EndOfTune.php

@@ -0,0 +1,53 @@
+<?php
+namespace XaiCorp\AbcParser\Domain\Modules\Interpreter\Lexicon;
+
+use Enzyme\Axiom\Atoms\StringAtom;
+use XaiCorp\AbcParser\Domain\Atoms\UnsignedIntegerAtom;
+use XaiCorp\AbcParser\Domain\Modules\Interpreter\Builder;
+use XaiCorp\AbcParser\Domain\Modules\Interpreter\Context;
+
+class EndOfTune implements Lex
+{
+    use LineKeyDataTrait;
+
+    /**
+     * @var Builder
+     */
+    protected $builder;
+
+    public function __construct(Builder $builder)
+    {
+        $this->builder = $builder;
+    }
+
+    /**
+     * @param Context $context
+     * @param \Closure $next
+     * @return mixed
+     * @throws \Enzyme\Axiom\Exceptions\AtomException
+     */
+    public function handle(Context $context, \Closure $next)
+    {
+        $line = $context->current();
+//        list($key, $data) = $this->getKeyDataFromLine($line);
+
+        if ($this->isEndOfFile($context) || $this->isEndOfMusic($context, $line)) {
+            $this->builder->handleEndOfMusic();
+        }
+
+        return $next($context);
+    }
+
+    protected function isEndOfFile(Context $context)
+    {
+        $key = $context->key();
+        return $context->count() <= $key+1;
+    }
+
+    private function isEndOfMusic(Context $context, string $line)
+    {
+        return $context->isState(Context::MODE_TUNE_BODY)
+            && preg_match('/^\s*$/', $line);
+    }
+
+}