Support non-http schemas in url refs

tests/test_getRefs.py

@@ -9,3 +9,13 @@ def test_getRefs():
     result = t.urlrefs
     expect = {'Google': 'http://www.google.com'}
     assert result == expect
+
+    t2 = Textile()
+
+    result = t2.getRefs("my ftp [ftp]ftp://example.com")
+    expect = 'my ftp '
+    assert result == expect
+
+    result = t2.urlrefs
+    expect = {'ftp': 'ftp://example.com'}
+    assert result == expect

textile/core.py

@@ -212,6 +212,15 @@ def __init__(self, restricted=False, lite=False, noimage=False,
         else:
             self.url_schemes = self.unrestricted_url_schemes
 
+        all_schemes_re_s = '|'.join([
+            '(?:{0})'.format(scheme)
+            for scheme in self.url_schemes
+        ])
+        self.url_ref_regex = re.compile(
+            r'(?:(?<=^)|(?<=\s))\[(.+)\]\s?((?:{0}:\/\/|\/)\S+)(?=\s|$)'.format(all_schemes_re_s),
+            re.U
+        )
+
     def parse(self, text, rel=None, sanitize=False):
         """Parse the input text as textile and return html output."""
         self.notes = OrderedDict()
@@ -612,10 +621,7 @@ def glyphs(self, text):
 
     def getRefs(self, text):
         """Capture and store URL references in self.urlrefs."""
-        pattern = re.compile(r'(?:(?<=^)|(?<=\s))\[(.+)\]((?:http(?:s?):\/\/|\/)\S+)(?=\s|$)',
-                             re.U)
-        text = pattern.sub(self.refs, text)
-        return text
+        return self.url_ref_regex.sub(self.refs, text)
 
     def refs(self, match):
         flag, url = match.groups()