Issue/51 dot last char (#60)

* Don´t throw exception but return ending dot to input buffer

* Update test

* Add test for name with dot as last char

lib/Parser/Turtle.php

@@ -948,7 +948,10 @@ protected function parseQNameOrBoolean()
 
             // Last char of name must not be a dot
             if (mb_substr($localName, -1) === '.') {
-                throw new Exception("Turtle Parse Error: last character of QName must not be a dot", $this->line, $this->column - 1);
+                $localName = substr_replace($localName, '', -1);
+                $this->unread($c); // step back
+                $this->unread('.'); // return dot to input buffer
+                $c = $this->read(); // read, because below the unread($c) is done for all cases
             }
         }
 

test/fixtures/turtle/gh51-sweetrdf-dot-in-name.out

@@ -1,2 +1,3 @@
 <http://example.org/#Subject.WithADot> <http://example.org/#predicate.withADot> <http://example.org/#Object.WithADot> .
 <http://example.org/#Subject.With.Dots> <http://example.org/#predicate.with.dots> <http://example.org/#Object.With.Dots> .
+<http://example.org/#sub> <http://example.org/#pred> <http://example.org/#Object.WithADot> .

test/fixtures/turtle/gh51-sweetrdf-dot-in-name.ttl

@@ -5,3 +5,6 @@
 # See https://github.com/sweetrdf/easyrdf/issues/51
 :Subject.WithADot :predicate.withADot :Object.WithADot .
 :Subject.With.Dots :predicate.with.dots :Object.With.Dots .
+
+# A dot as last char is not part of the name but parsed as statement ending
+:sub :pred :Object.WithADot.

tests/EasyRdf/Parser/TurtleTest.php

@@ -594,7 +594,7 @@ public function testIssue51Bad()
         // Test long literals with missing end
         $this->expectException('EasyRdf\Parser\Exception');
         $this->expectExceptionMessage(
-            'Turtle Parse Error: last character of QName must not be a dot on line 7, column 20'
+            'Turtle Parse Error: Illegal predicate type: literal on line 7, column 19'
         );
         $this->parseTurtle('turtle/gh51-sweetrdf-dot-in-name-bad.ttl');
     }