Fix LAYER FILTER

Author: Jonathan Beliën

src/Parser/Layer.php

@@ -101,6 +101,8 @@ public function parse($content = null): LayerObject
                 $layer->feature->add($feature);
 
                 $this->currentLineIndex = $featureParser->lineEnd;
+            } elseif ($this->parsing === 'LAYER' && preg_match('/^FILTER (\(.+\))$/i', $line, $matches)) {
+                $layer->filer = $matches[1];
             } elseif ($this->parsing === 'LAYER' && preg_match('/^FILTER ["\'](.+)["\']$/i', $line, $matches)) {
                 $layer->filer = $matches[1];
             } elseif ($this->parsing === 'LAYER' && preg_match('/^FILTERITEM ["\'](.+)["\']$/i', $line, $matches)) {

src/Writer/Layer.php

@@ -31,7 +31,7 @@ public function write($layer, int $indentSize = 0, string $indent = self::WRITER
         $this->text .= self::getTextRaw('DEBUG', $layer->debug, $indentSize + 1, $indent);
         $this->text .= self::getTextString('ENCODING', $layer->encoding, $indentSize + 1, $indent);
         $this->text .= self::getTextArray('EXTENT', $layer->extent, $indentSize + 1, $indent);
-        $this->text .= self::getTextString('FILTER', $layer->filter, $indentSize + 1, $indent);
+        $this->text .= self::getText('FILTER', $layer->filter, $indentSize + 1, $indent);
         $this->text .= self::getTextString('FILTERITEM', $layer->filteritem, $indentSize + 1, $indent);
         $this->text .= self::getTextString('FOOTER', $layer->footer, $indentSize + 1, $indent);
         $this->text .= self::getText('GEOMTRANSFORM', $layer->geomtransform, $indentSize + 1, $indent);