Fix tests on Windows

Author: goerz

test/test_bibliography_block_pages.jl

@@ -8,14 +8,16 @@ include("file_content.jl")
 
 # regex for strings containing paths
 function prx(s)
-    rx = s
+    rx = escape_string(s)
     # work around limitations of `replace` in Julia 1.6
     for mapping in ["[" => "\\[", "]" => "\\]", "." => "\\.", "/" => "\\W*"]
         # The mapping for path separators ("/") to "\W*" (sequence of non-word
         # characters) is deliberately broad. I've found it frustratingly hard
         # to get a regex that works on Windows.
         rx = replace(rx, mapping)
     end
+    @show rx # DEBUG
+    @show Regex(rx) # DEBUG
     Regex(rx)
 end