🐛 FIX: attrs: span with end of inline before attrs

Author: chrisjsewell

mdit_py_plugins/attrs/index.py

@@ -12,6 +12,7 @@ def attrs_plugin(
     *,
     after=("image", "code_inline", "link_close", "span_close"),
     spans=False,
+    span_after="link",
 ):
     """Parse inline attributes that immediately follow certain inline elements::
 
@@ -42,7 +43,7 @@ def attrs_plugin(
         which all require post-parse processing.
     :param spans: If True, also parse attributes after spans of text, encapsulated by `[]`.
         Note Markdown link references take precedence over this syntax.
-
+    :param span_after: The name of an inline rule after which spans may be specified.
     """
 
     def _attr_rule(state: StateInline, silent: bool):
@@ -67,7 +68,7 @@ def _attr_rule(state: StateInline, silent: bool):
         return True
 
     if spans:
-        md.inline.ruler.after("link", "span", _span_rule)
+        md.inline.ruler.after(span_after, "span", _span_rule)
     md.inline.ruler.push("attr", _attr_rule)
 
 
@@ -98,6 +99,10 @@ def _span_rule(state: StateInline, silent: bool):
 
     pos = labelEnd + 1
 
+    # check not at end of inline
+    if pos >= maximum:
+        return False
+
     try:
         new_pos, attrs = parse(state.src[pos:])
     except ParseError:

tests/fixtures/attrs.md

@@ -68,6 +68,13 @@ spans: simple
 <p><span id="id" class="b">a</span>c</p>
 .
 
+spans: end of inline before attrs
+.
+[a]
+.
+<p>[a]</p>
+.
+
 spans: space between brace and attrs
 .
 [a] {.b}