Add an exit matcher to plain text.

src/parser/object_parser.rs

@@ -43,3 +43,17 @@ pub fn minimal_set_object<'r, 's>(
         map(parser_with_context!(plain_text)(context), Object::PlainText),
     ))(input)
 }
+
+#[tracing::instrument(ret, level = "debug")]
+pub fn any_object_except_plain_text<'r, 's>(
+    context: Context<'r, 's>,
+    input: &'s str,
+) -> Res<&'s str, Object<'s>> {
+    // TODO: add entities, LaTeX fragments, export snippets, footnote references, citations (NOT citation references), inline babel calls, inline source blocks, line breaks, links, macros, targets and radio targets, statistics cookies, subscript and superscript, timestamps, and text markup.
+    not(|i| context.check_exit_matcher(i))(input)?;
+
+    alt((map(
+        parser_with_context!(text_markup)(context),
+        Object::TextMarkup,
+    ),))(input)
+}