remove spaces and line breaks inside urls (#190)

* remove spaces and line breaks inside urls

* adding a comment

* CHANGES

* black

CHANGES.rst

@@ -15,6 +15,9 @@ CHANGES
   - Python Implementation (CPython, PyPy, Pyston) explicitly is shown
   - Optional Python packages are also shown along with their version
 
+* In documentation, ``<url>...</url>`` admits now to be splitted in
+  several indented lines.
+
 5.0.0
 -----
 

mathics_django/doc/utils.py

@@ -122,6 +122,19 @@ def repl_list(match):
         def repl_hypertext(match):
             tag = match.group("tag")
             content = match.group("content")
+            #
+            # Sometimes it happens that the URL does not
+            # fit in 80 characters. Then, to avoid that
+            # flake8 complains, and also to have a
+            # nice and readable ASCII representation,
+            # we would like to split the URL in several,
+            # lines, having indentation spaces.
+            #
+            # The following line removes these extra
+            # characters, which would spoil the URL,
+            # producing a single line, space-free string.
+            #
+            content = content.replace(" ", "").replace("\n", "")
             if tag == "em":
                 return r"<em>%s</em>" % content
             elif tag == "url":