Fix spacing and undefined variable for each block in partial

Resolves #7

Author: theodorejb

src/Compiler.php

@@ -406,7 +406,7 @@ protected static function section(Context $context, array $vars, bool $isEach =
         $v = static::getVariableNameOrSubExpression($context, $vars[0]);
         $each = $isEach ? 'true' : 'false';
         return $context->separator . static::getFuncName($context, 'sec', ($isEach ? 'each ' : '') . $v[1] . $be)
-            . "\$cx, {$v[0]}, $bs, \$in, $each, function(\$cx, \$in) {{$context->fStart}";
+            . "\$cx, {$v[0]}, $bs, \$in, $each, function(\$cx, \$in) use (&\$sp) {{$context->fStart}\$sp.";
     }
 
     /**

src/Partial.php

@@ -98,6 +98,10 @@ public static function compile(Context $context, string $template, string $name)
             $code = preg_replace('/^/m', "'{$context->separator}\$sp{$context->separator}'", $code);
             // remove extra spaces before partial
             $code = preg_replace('/^\'\\.\\$sp\\.\'(\'\\.LR::p\\()/m', '$1', $code, 1);
+            // remove extra spaces before section
+            $code = preg_replace('/^\'\\.\\$sp\\.\'(\'\\.LR::sec\\()/m', '$1', $code, 1);
+            // remove extra spaces before blank lines
+            $code = preg_replace('/^\'\\.\\$sp\\.\'(\';}\\))/m', '$1', $code, 1);
             // add spaces after partial
             $code = preg_replace('/^(\'\\.LR::p\\(.+\\)\\.)(\'.+)/m', '$1\$sp.$2', $code, 1);
         }

tests/RegressionTest.php

@@ -95,6 +95,16 @@ public static function issueProvider(): array
         };
 
         $issues = [
+            [
+                'id' => 7,
+                'template' => "<p>\n  {{> list}}\n</p>",
+                'data' => ['items' => ['Hello', 'World']],
+                'options' => new Options(
+                    partials: ['list' => "{{#each items}}{{this}}\n{{/each}}"],
+                ),
+                'expected' => "<p>\n  Hello\n  World\n</p>",
+            ],
+
             [
                 'id' => 39,
                 'template' => '{{{tt}}}',