fix data-original-title

fixes #17

django_template_i18n_lint.py

@@ -58,7 +58,8 @@ def location(str, pos):
         |(?:['"]\W+)?[a-z:-]+?(?<!alt)(?<!value)(?<!title)(?<!summary)=(?:'[^']*?'|"[^"]*?"|[a-zA-Z]+)
 
          # The actual alt/value/title tag itself cannot be translated, but the value should be
-        |(?:alt|value|title|summary)=['"]?
+         # Treat data-title/data-original-title etc as equivalanets. Think this is some bootstrap thing & HTML5
+        |(?:['"]\W+)?(?:data-|data-original-)?(?:alt|value|title|summary)=['"]?
 
          # Boolean attributes
         |<[^<>]+?(?:checked|selected|disabled|readonly|multiple|ismap|defer|async|declare|noresize|nowrap|noshade|compact|hidden|itemscope|autofocus|autoplay|controls|download)[^<>]*?>
@@ -67,7 +68,8 @@ def location(str, pos):
         |<[\w:]+
 
          # End of a html opening tag
-        |/?>
+         # NB: catching end of quote from last attribute
+        |(?:['"]\W*)?/?>
 
          # closing html tag
         |</.*?>

tests.py

@@ -40,6 +40,7 @@ class DjangoTemplateI18nLintTestCase(unittest.TestCase):
     testNoHTMLAttrNoQuote2 = _known_good_output("<form method=post>FOO</form>", [(1, 19, 'FOO')])
 
     testIssue17a = _known_good_output("<input type=\"submit\" value=\"Confirm\" class=\"btn btn-danger\" />", [(1, 29, 'Confirm')])
+    testIssue17b = _known_good_output('<li><a href="https://twitter.com/localunews" class="icon-twitter" rel="tooltip" title="" data-placement="top" data-original-title="Twitter"><i class="fa fa-twitter"></i></a></li>', [(1, 132, 'Twitter')])
 
 
 if __name__ == '__main__':