New footnotes configuration option: BACKLINK_TEXT (second try).

BACKLINK_TEXT specifies the text that's used in the link at the end of
the footnote to link back up to the reader's place. It still defaults to
"↩".

Okay, so at first I had an uncessarily complicated commit for this and
submitted a pull request. Waylan showed me a better way to do it, here:

https://github.com/startling/Python-Markdown/commit/ee7d1a26c76f970c12226ca48ba52dc1d32f2488#markdown/extensions/footnotes.py-P19

So I made another commit and added it to the pull request. But then I
accidentally added yet another commit to the pull request, accidentally.
Since then, I've realized it would be best to start with a new branch
and closed that first pull request.

Hopefully this will be the last try.

1 files changed, 8 insertions, 2 deletions

diff --git a/markdown/extensions/footnotes.py b/markdown/extensions/footnotes.py
index d05edda..a4c897b 100644
--- a/markdown/extensions/footnotes.py
+++ b/markdown/extensions/footnotes.py
@@ -43,7 +43,11 @@ class FootnoteExtension(markdown.Extension):
                        'UNIQUE_IDS':
                        [False,
                         "Avoid name collisions across "
-                        "multiple calls to reset()."]}
+                        "multiple calls to reset()."],
+                       "BACKLINK_TEXT":
+                       ["↩",
+                        "The text string that links from the footnote to the reader's place."]
+                       }
 
         for key, value in configs:
             self.config[key][0] = value
@@ -282,10 +286,12 @@ class FootnoteTreeprocessor(markdown.treeprocessors.Treeprocessor):
 
 class FootnotePostprocessor(markdown.postprocessors.Postprocessor):
     """ Replace placeholders with html entities. """
+    def __init__(self, footnotes):
+        self.footnotes = footnotes
 
     def run(self, text):
         text = text.replace(FN_BACKLINK_TEXT, "↩")
-        return text.replace(NBSP_PLACEHOLDER, " ")
+        return text.replace(NBSP_PLACEHOLDER, self.footnotes.getConfig("BACKLINK_TEXT"))
 
 def makeExtension(configs=[]):
     """ Return an instance of the FootnoteExtension """