Add customizable TOC title class

Fixes Python-Markdown#1293.

.spell-dict

@@ -28,6 +28,7 @@ Cogumbreiro
 CommonMark
 convertFile
 CSS
+customizable
 dedent
 deliminators
 deregister

docs/changelog.md

@@ -25,7 +25,8 @@ links to the header, placing them after all other header content.
 * Add support for cPython version 3.12 (and PyPy 3.10) and drop support for
   Python version 3.7 (#1357).
 * Refactor changelog to use the format defined at <https://keepachangelog.com/>.
-* Updated the list of empty HTML tags (#1353).
+* Update the list of empty HTML tags (#1353).
+* Add customizable TOC title class to TOC extension (#1293).
 
 ## [3.4.4] -- 2023-07-25
 

docs/extensions/toc.md

@@ -151,6 +151,9 @@ The following options are provided to configure the output:
 * **`title`**:
     Title to insert in the Table of Contents' `<div>`. Defaults to `None`.
 
+* **`title_class`**:
+    CSS class used for the title contained in the Table of Contents. Defaults to `toctitle`.
+
 * **`toc_class`**:
     CSS class(es) used for the `<div>` containing the Table of Contents. Defaults to `toc`.
 

markdown/extensions/toc.py

@@ -161,6 +161,7 @@ def __init__(self, md, config):
         self.slugify = config["slugify"]
         self.sep = config["separator"]
         self.toc_class = config["toc_class"]
+        self.title_class = config["title_class"]
         self.use_anchors = parseBoolValue(config["anchorlink"])
         self.anchorlink_class = config["anchorlink_class"]
         self.use_permalinks = parseBoolValue(config["permalink"], False)
@@ -251,7 +252,8 @@ def build_toc_div(self, toc_list):
         # Add title to the div
         if self.title:
             header = etree.SubElement(div, "span")
-            header.attrib["class"] = "toctitle"
+            if self.title_class:
+                header.attrib["class"] = self.title_class
             header.text = self.title
 
         def build_etree_ul(toc_list, parent):
@@ -335,6 +337,9 @@ def __init__(self, **kwargs):
             "title": ["",
                       "Title to insert into TOC <div> - "
                       "Defaults to an empty string"],
+            "title_class": ['toctitle',
+                            'CSS class used for the title. '
+                            'Defaults to "toctitle"'],
             "toc_class": ['toc',
                           'CSS class(es) used for the link. '
                           'Defaults to "toclink"'],

tests/test_syntax/extensions/test_toc.py

@@ -629,3 +629,45 @@ def testTOCWithCustomClasses(self):
             ),
             extensions=[TocExtension(toc_class="custom1 custom2")]
         )
+
+    def testTOCWithEmptyTitleClass(self):
+
+        self.assertMarkdownRenders(
+            self.dedent(
+                '''
+                [TOC]
+                # Header
+                '''
+            ),
+            self.dedent(
+                '''
+                <div class="toc"><span>ToC</span><ul>
+                <li><a href="#header">Header</a></li>
+                </ul>
+                </div>
+                <h1 id="header">Header</h1>
+                '''
+            ),
+            extensions=[TocExtension(title_class="", title='ToC')]
+        )
+
+    def testTOCWithCustomTitleClass(self):
+
+        self.assertMarkdownRenders(
+            self.dedent(
+                '''
+                [TOC]
+                # Header
+                '''
+            ),
+            self.dedent(
+                '''
+                <div class="toc"><span class="tocname">ToC</span><ul>
+                <li><a href="#header">Header</a></li>
+                </ul>
+                </div>
+                <h1 id="header">Header</h1>
+                '''
+            ),
+            extensions=[TocExtension(title_class="tocname", title='ToC')]
+        )