Move the post-colon check into the item_tag_divider parser.

scripts/run_docker_compare_bisect.bash

@@ -64,7 +64,7 @@ function run_parse {
     local lines="$1"
 
     cd "$SOURCE_FOLDER"
-    head -n "$lines" "$SOURCE_FOLDER/$TARGET_DOCUMENT" | "${DIR}/run_docker_compare.bash"
+    head -n "$lines" "$SOURCE_FOLDER/$TARGET_DOCUMENT" | PROFILE=release-lto "${DIR}/run_docker_compare.bash"
     local status=$?
     return "$status"
 }

src/parser/plain_list.rs

@@ -359,22 +359,22 @@ fn item_tag_end<'b, 'g, 'r, 's>(
     _context: RefContext<'b, 'g, 'r, 's>,
     input: OrgSource<'s>,
 ) -> Res<OrgSource<'s>, OrgSource<'s>> {
-    alt((
-        recognize(tuple((
-            item_tag_divider,
+    alt((item_tag_divider, line_ending))(input)
+}
+
+#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
+fn item_tag_divider<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, OrgSource<'s>> {
+    recognize(tuple((
+        one_of(" \t"),
+        tag("::"),
+        peek(tuple((
             opt(tuple((
                 peek(one_of(" \t")),
                 many_till(anychar, peek(alt((item_tag_divider, line_ending, eof)))),
             ))),
             alt((line_ending, eof)),
         ))),
-        line_ending,
-    ))(input)
-}
-
-#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
-fn item_tag_divider<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, OrgSource<'s>> {
-    recognize(tuple((one_of(" \t"), tag("::"))))(input)
+    )))(input)
 }
 
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]