feat(#4): support semantic list indents

README.md

@@ -7,7 +7,7 @@
 [cov-link]: https://codecov.io/gh/executablebooks/mdformat-mkdocs
  -->
 
-An [mdformat](https://github.com/executablebooks/mdformat) plugin for mkdocs.
+An [mdformat](https://github.com/executablebooks/mdformat) plugin for [mkdocs](https://github.com/mkdocs/mkdocs).
 
 ## Usage
 

mdformat_mkdocs/plugin.py

@@ -8,10 +8,17 @@
 _MKDOCS_INDENT_COUNT = 4
 """Use 4-spaces for mkdocs."""
 
+_ALIGN_SEMANTIC_BREAKS_IN_NUMBERED_LISTS = False
+"""use 3-space on subsequent lines in semantic lists."""
+
 
 def update_mdit(mdit: MarkdownIt) -> None:
     """No changes to markdown parsing are necessary."""
-    ...
+    global _ALIGN_SEMANTIC_BREAKS_IN_NUMBERED_LISTS
+    # FIXME: How do I add this configuration option?
+    _ALIGN_SEMANTIC_BREAKS_IN_NUMBERED_LISTS = mdit.options.get(
+        "align_semantic_breaks_in_numbered_lists", True
+    )
 
 
 _RE_INDENT = re.compile(r"(?P<indent>\s*)(?P<content>[^\s]?.*)")
@@ -30,13 +37,15 @@ def _normalize_list(text: str, node: RenderTreeNode, context: RenderContext) ->
     last_indent = ""
     indent_counter = 0
     indent_lookup: Dict[str, int] = {}
+    is_numbered = False
     for line in text.split(eol):
         match = _RE_INDENT.match(line)
         assert match is not None  # for pylint
         list_match = _RE_LIST_ITEM.match(match["content"])
         new_line = line
         if list_match:
-            new_bullet = "-" if list_match["bullet"] in {"-", "*"} else "1."
+            is_numbered = list_match["bullet"] not in {"-", "*"}
+            new_bullet = "1." if is_numbered else "-"
             new_line = f'{new_bullet} {list_match["item"]}'
 
         this_indent = match["indent"]
@@ -55,6 +64,8 @@ def _normalize_list(text: str, node: RenderTreeNode, context: RenderContext) ->
             indent_counter = 0
         last_indent = this_indent
         new_indent = indent * indent_counter
+        if _ALIGN_SEMANTIC_BREAKS_IN_NUMBERED_LISTS and not list_match and is_numbered:
+            new_indent = new_indent[:-1]
         rendered += f"{new_indent}{new_line.strip()}{eol}"
     return rendered.rstrip()
 

tests/fixtures.md

@@ -173,15 +173,15 @@ Hanging List (https://github.com/executablebooks/mdformat/issues/371)
      Otherwise this next paragraph doesn't belong in the same list item.
 .
 1. Here indent width is
-    three.
+   three.
 
     1. Here indent width is
-        three.
+       three.
 
 1. Here indent width is
-    five. It needs to be so, because
+   five. It needs to be so, because
 
-    Otherwise this next paragraph doesn't belong in the same list item.
+   Otherwise this next paragraph doesn't belong in the same list item.
 .
 
 Table