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authorMarkus Armbruster <armbru@redhat.com>2023-04-28 12:54:24 +0200
committerMarkus Armbruster <armbru@redhat.com>2023-05-10 09:34:17 +0200
commit3e32dca3f0d1eddcfecf963d94b9ff60e3e08448 (patch)
tree72bf6171e2a5c8096876420c789f55700ad45aed /scripts/qapi
parent9b2c6746d30a44d222e9124faee59eb05703b6ae (diff)
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qapi: Rewrite parsing of doc comment section symbols and tags
To recognize a line starting with a section symbol and or tag, we first split it at the first space, then examine the part left of the space. We can just as well examine the unsplit line, so do that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20230428105429.1687850-13-armbru@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> [Work around lack of walrus operator in Python 3.7 and older]
Diffstat (limited to 'scripts/qapi')
-rw-r--r--scripts/qapi/parser.py55
1 files changed, 27 insertions, 28 deletions
diff --git a/scripts/qapi/parser.py b/scripts/qapi/parser.py
index ddc14ce..a4ff9b6 100644
--- a/scripts/qapi/parser.py
+++ b/scripts/qapi/parser.py
@@ -560,12 +560,12 @@ class QAPIDoc:
self._switch_section(QAPIDoc.NullSection(self._parser))
@staticmethod
- def _is_section_tag(name: str) -> bool:
- return name in ('Returns:', 'Since:',
- # those are often singular or plural
- 'Note:', 'Notes:',
- 'Example:', 'Examples:',
- 'TODO:')
+ def _match_at_name_colon(string: str) -> re.Match:
+ return re.match(r'@([^:]*): *', string)
+
+ @staticmethod
+ def _match_section_tag(string: str) -> re.Match:
+ return re.match(r'(Returns|Since|Notes?|Examples?|TODO): *', string)
def _append_body_line(self, line: str) -> None:
"""
@@ -581,7 +581,6 @@ class QAPIDoc:
Else, append the line to the current section.
"""
- name = line.split(' ', 1)[0]
# FIXME not nice: things like '# @foo:' and '# @foo: ' aren't
# recognized, and get silently treated as ordinary text
if not self.symbol and not self.body.text and line.startswith('@'):
@@ -595,12 +594,12 @@ class QAPIDoc:
self._parser, "name required after '@'")
elif self.symbol:
# This is a definition documentation block
- if name.startswith('@') and name.endswith(':'):
+ if self._match_at_name_colon(line):
self._append_line = self._append_args_line
self._append_args_line(line)
elif line == 'Features:':
self._append_line = self._append_features_line
- elif self._is_section_tag(name):
+ elif self._match_section_tag(line):
self._append_line = self._append_various_line
self._append_various_line(line)
else:
@@ -621,16 +620,16 @@ class QAPIDoc:
Else, append the line to the current section.
"""
- name = line.split(' ', 1)[0]
-
- if name.startswith('@') and name.endswith(':'):
+ match = self._match_at_name_colon(line)
+ if match:
# If line is "@arg: first line of description", find
# the index of 'f', which is the indent we expect for any
# following lines. We then remove the leading "@arg:"
# from line and replace it with spaces so that 'f' has the
# same index as it did in the original line and can be
# handled the same way we will handle following lines.
- indent = must_match(r'@\S*:\s*', line).end()
+ name = match.group(1)
+ indent = match.end()
line = line[indent:]
if not line:
# Line was just the "@arg:" header
@@ -638,8 +637,8 @@ class QAPIDoc:
indent = -1
else:
line = ' ' * indent + line
- self._start_args_section(name[1:-1], indent)
- elif self._is_section_tag(name):
+ self._start_args_section(name, indent)
+ elif self._match_section_tag(line):
self._append_line = self._append_various_line
self._append_various_line(line)
return
@@ -656,16 +655,16 @@ class QAPIDoc:
self._append_freeform(line)
def _append_features_line(self, line: str) -> None:
- name = line.split(' ', 1)[0]
-
- if name.startswith('@') and name.endswith(':'):
+ match = self._match_at_name_colon(line)
+ if match:
# If line is "@arg: first line of description", find
# the index of 'f', which is the indent we expect for any
# following lines. We then remove the leading "@arg:"
# from line and replace it with spaces so that 'f' has the
# same index as it did in the original line and can be
# handled the same way we will handle following lines.
- indent = must_match(r'@\S*:\s*', line).end()
+ name = match.group(1)
+ indent = match.end()
line = line[indent:]
if not line:
# Line was just the "@arg:" header
@@ -673,8 +672,8 @@ class QAPIDoc:
indent = -1
else:
line = ' ' * indent + line
- self._start_features_section(name[1:-1], indent)
- elif self._is_section_tag(name):
+ self._start_features_section(name, indent)
+ elif self._match_section_tag(line):
self._append_line = self._append_various_line
self._append_various_line(line)
return
@@ -698,13 +697,13 @@ class QAPIDoc:
Else, append the line to the current section.
"""
- name = line.split(' ', 1)[0]
-
- if name.startswith('@') and name.endswith(':'):
+ match = self._match_at_name_colon(line)
+ if match:
raise QAPIParseError(self._parser,
- "'%s' can't follow '%s' section"
- % (name, self.sections[0].name))
- if self._is_section_tag(name):
+ "'@%s:' can't follow '%s' section"
+ % (match.group(1), self.sections[0].name))
+ match = self._match_section_tag(line)
+ if match:
# If line is "Section: first line of description", find
# the index of 'f', which is the indent we expect for any
# following lines. We then remove the leading "Section:"
@@ -719,7 +718,7 @@ class QAPIDoc:
indent = 0
else:
line = ' ' * indent + line
- self._start_section(name[:-1], indent)
+ self._start_section(match.group(1), indent)
self._append_freeform(line)