[PATCH 12/13] qapi/parser: don't parse rST markup as section headers

[John Snow]

The double-colon synax is rST formatting that precedes a literal code
block. We do not want to capture these as QAPI-specific sections.

Coerce blocks that start with e.g. "Example::" to be parsed as untagged
paragraphs instead of special tagged sections.

Signed-off-by: John Snow <jsnow@redhat.com>
---
 scripts/qapi/parser.py | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/scripts/qapi/parser.py b/scripts/qapi/parser.py
index 53b06a94508..971fdf61a09 100644
--- a/scripts/qapi/parser.py
+++ b/scripts/qapi/parser.py
@@ -545,10 +545,15 @@ def get_doc(self) -> 'QAPIDoc':
                         line = self.get_doc_indented(doc)
                     no_more_args = True
                 elif match := re.match(
-                        r'(Returns|Errors|Since|Notes?|Examples?|TODO): *',
-                        line):
+                        r'(Returns|Errors|Since|Notes?|Examples?|TODO)'
+                        r'(?!::): *',
+                        line,
+                ):
                     # tagged section
 
+                    # Note: "sections" with two colons are left alone as
+                    # rST markup and not interpreted as a section heading.
+
                     # TODO: Remove this error sometime in 2025 or so
                     # after we've fully transitioned to the new qapidoc
                     # generator.
-- 
2.44.0