Allow decimal numbers with decimal point but zero decimals (#92)

CHANGES.txt

@@ -5,7 +5,7 @@ Changelog
 6.2 (unreleased)
 ----------------
 
-- Nothing changed yet.
+- Allow numbers with decimal point but no decimals, because other parsers do.
 
 
 6.1 (2022-06-09)

src/svg/path/parser.py

@@ -7,7 +7,7 @@
 UPPERCASE = set("MZLHVCSQTA")
 
 COMMAND_RE = re.compile(r"([MmZzLlHhVvCcSsQqTtAa])")
-FLOAT_RE = re.compile(rb"^[-+]?[0-9]*\.?[0-9]+(?:[eE][-+]?[0-9]+)?")
+FLOAT_RE = re.compile(rb"^[-+]?\d*\.?\d*(?:[eE][-+]?\d+)?")
 
 
 class InvalidPathError(ValueError):
@@ -42,7 +42,7 @@ def strip_array(arg_array):
 
 def pop_number(arg_array):
     res = FLOAT_RE.search(arg_array)
-    if not res:
+    if not res or not res.group():
         raise InvalidPathError(f"Expected a number, got '{arg_array}'.")
     number = float(res.group())
     start = res.start()

src/svg/path/tests/test_parsing.py

@@ -611,3 +611,10 @@ def test_arc_flag(self):
         self.assertEqual(len(path), 15)
         # It ends on a vertical line to Y 1:
         self.assertEqual(path[-1].end.imag, 1)
+
+    def test_incomplete_numbers(self):
+        path = parse_path("M 0. .1")
+        self.assertEqual(path.d(), "M 0,0.1")
+
+        path = parse_path("M 0..1")
+        self.assertEqual(path.d(), "M 0,0.1")