commit 9eb11a139fac5514d8456626806a68b3e3b7eafb
author Karl Dubost <karl+github@la-grange.net> Tue Feb 02 05:32:50 2021 +0900
committer GitHub <noreply@github.com> Mon Feb 01 21:32:50 2021 +0100
tree 060e3c9b600cf8279eb642aefec672c525b224b6
parent 000cde59847beaf5fa7b73633e1f3c898fe5bf90

bpo-41748: Handles unquoted attributes with commas (#24072)

* bpo-41748: Adds tests for unquoted attributes with comma

* bpo-41748: Handles unquoted attributes with comma

* bpo-41748: Addresses review comments

* bpo-41748: Addresses review comments

* Adds more test cases
* Simplifies the regex for handling spaces

* bpo-41748: Moves attributes tests under the right class

* bpo-41748: Addresses review about duplicate attributes

* bpo-41748: Adds NEWS.d entry for this patch

Lib/html/parser.py

diff --git a/Lib/html/parser.py b/Lib/html/parser.py
index 6083077..9e49eff 100644
--- a/Lib/html/parser.py
+++ b/Lib/html/parser.py
@@ -46,7 +46,7 @@
           |"[^"]*"                   # LIT-enclosed value
           |(?!['"])[^>\s]*           # bare value
          )
-         (?:\s*,)*                   # possibly followed by a comma
+        \s*                          # possibly followed by a space
        )?(?:\s|/(?!>))*
      )*
    )?