From 94d66d0c5069c3d2a8e14f50e63c83920d33f1b5 Mon Sep 17 00:00:00 2001
From: Erik Stein <erik@classlibrary.net>
Date: Fri, 27 Mar 2020 19:17:12 +0100
Subject: [PATCH] Add markdown link syntax to slimdown.

---
 shared/utils/text.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/shared/utils/text.py b/shared/utils/text.py
index e4d6af8..601112d 100644
--- a/shared/utils/text.py
+++ b/shared/utils/text.py
@@ -86,11 +86,17 @@ def slimdown(text):
     b_pattern = re.compile(r"(\*\*)(.*?)\1")
     i_pattern = re.compile(r"(\*)(.*?)\1")
     u_pattern = re.compile(r"(__)(.*?)\1")
+    link_pattern = re.compile(r"\[([^\[]+)\]\(([^\)]+)\)")
 
     if text:
         text, n = re.subn(b_pattern, "<b>\\2</b>", text)
         text, n = re.subn(i_pattern, "<i>\\2</i>", text)
         text, n = re.subn(u_pattern, "<u>\\2</u>", text)
+        text, n = re.subn(link_pattern, "<a href=\'\\2\'>\\1</a>", text)
         return mark_safe(text)
     else:
         return ""
+
+
+def strip_links(text):
+    return re.sub(r'<a[^>]+>', '', text, flags=re.DOTALL).replace('</a>', '')