BUGFIX - Fixed 2 issues with line counting

1) Failed to detect newlines in regexps of the form [^...]

2) Last token didn't get end_line & end_column

lark/lexer.py

@@ -105,6 +105,10 @@ class _Lex:
                     raise UnexpectedCharacters(stream, line_ctr.char_pos, line_ctr.line, line_ctr.column, state=self.state)
                 break
 
+        if t:
+            t.end_line = line_ctr.line
+            t.end_column = line_ctr.column
+
 class UnlessCallback:
     def __init__(self, mres):
         self.mres = mres
@@ -164,7 +168,13 @@ def build_mres(tokens, match_whole=False):
     return _build_mres(tokens, len(tokens), match_whole)
 
 def _regexp_has_newline(r):
-    return '\n' in r or '\\n' in r or ('(?s' in r and '.' in r)
+    """Expressions that may indicate newlines in a regexp:
+        - newlines (\n)
+        - escaped newline (\n)
+        - anything but ([^...])
+        - any-char (.) when the flag (?s) exists
+    """
+    return '\n' in r or '\\n' in r or '[^' in r or ('(?s' in r and '.' in r)
 
 class Lexer:
     """Lexer interface

tests/test_parser.py

@@ -1224,6 +1224,19 @@ def _make_parser_test(LEXER, PARSER):
             self.assertEqual(t.children, ['a', 'bc'])
             self.assertEqual(t.children[0].type, 'A')
 
+        def test_line_counting(self):
+            p = _Lark("start: /[^x]+/")
+
+            text = 'hello\nworld'
+            t = p.parse(text)
+            tok = t.children[0]
+            self.assertEqual(tok, text)
+            self.assertEqual(tok.line, 1)
+            self.assertEqual(tok.column, 1)
+            if _LEXER != 'dynamic':
+                self.assertEqual(tok.end_line, 2)
+                self.assertEqual(tok.end_column, 6)
+
 
 
     _NAME = "Test" + PARSER.capitalize() + LEXER.capitalize()