From b39c3f7866e16997199f67b4a5f9268174f0f844 Mon Sep 17 00:00:00 2001
From: jonaswinkler <17569239+jonaswinkler@users.noreply.github.com>
Date: Wed, 17 Mar 2021 22:44:18 +0100
Subject: [PATCH] fixes #668 (see
 https://github.com/the-paperless-project/paperless/pull/571)

---
 src/documents/matching.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/documents/matching.py b/src/documents/matching.py
index 3b70930b6..a1f3896e5 100644
--- a/src/documents/matching.py
+++ b/src/documents/matching.py
@@ -90,7 +90,7 @@ def matches(matching_model, document):
 
     elif matching_model.matching_algorithm == MatchingModel.MATCH_LITERAL:
         result = bool(re.search(
-            rf"\b{matching_model.match}\b",
+            rf"\b{re.escape(matching_model.match)}\b",
             document_content,
             **search_kwargs
         ))
@@ -161,6 +161,9 @@ def _split_match(matching_model):
     findterms = re.compile(r'"([^"]+)"|(\S+)').findall
     normspace = re.compile(r"\s+").sub
     return [
-        normspace(" ", (t[0] or t[1]).strip()).replace(" ", r"\s+")
+        # normspace(" ", (t[0] or t[1]).strip()).replace(" ", r"\s+")
+        re.escape(
+            normspace(" ", (t[0] or t[1]).strip())
+        ).replace(r"\ ", r"\s+")
         for t in findterms(matching_model.match)
     ]