Exhaustivity of supported block elements

test_widont.py

@@ -69,6 +69,17 @@ import pytest
             "With, punctuation",
             "With, punctuation",
         ),
+        (
+            "<details><summary>Unfold for content</summary></details>",
+            "<details><summary>Unfold for\u00a0content</summary></details>",
+            "<details><summary>Unfold for&nbsp;content</summary></details>",
+        ),
+        # TODISCUSS: we probably want to widont the summary too?
+        (
+            "<details><summary>Unfold for content</summary><p>This is the content.</p></details>",
+            "<details><summary>Unfold for content</summary><p>This is the\u00a0content.</p></details>",
+            "<details><summary>Unfold for content</summary><p>This is the&nbsp;content.</p></details>",
+        ),
     ],
 )
 def test_widont(in_, out_unicode, out_html):

widont.py

@@ -13,7 +13,13 @@ class Charactere:
 NON_BREAKABLE_SPACE = Charactere(unicode="\u00a0", html=" ")
 
 # TODISCUSS: part of the configuration?
-COMPUTED_BLOCKS = "|".join(["p", "h[1-6]", "li", "dt", "dd"])
+
+# Complete list:
+# https://developer.mozilla.org/en-US/docs/Web/HTML/Block-level_elements
+# Intentionnaly excluded: address, article, aside, blockquote,
+# dialog, div, dl, fieldset, figure, footer, form, hgroup, hr, main,
+# nav, ol, pre, section, table, ul.
+COMPUTED_BLOCKS = "|".join(["details", "dt", "dd", "figcaption", "h[1-6]", "li", "p"])
 
 # Complete list:
 # https://developer.mozilla.org/en-US/docs/Web/HTML/Inline_elements#list_of_inline_elements
@@ -43,6 +49,7 @@ ALLOWED_INLINES = "|".join(
         "span",
         "strong",
         "sub",
+        "summary",
         "sup",
         "u",
     ]
@@ -80,7 +87,7 @@ def widont(text, html=False):
     Improvements:
 
     * allow the unbreakable unicode character (new option)
-    * add the mark element as a potential inline
+    * consider the support of all pertinent inline and block elements
     * avoid insertion of a non-breakable space if the sentence is a single word
     * externalized test suite
     """