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Message-ID: <20250621203512.223189-10-corbet@lwn.net>
Date: Sat, 21 Jun 2025 14:35:12 -0600
From: Jonathan Corbet <corbet@....net>
To: linux-doc@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
Akira Yokosawa <akiyks@...il.com>,
Jonathan Corbet <corbet@....net>
Subject: [PATCH 9/9] docs: kdoc: finish disentangling the BODY and SPECIAL_SECTION states
Move the last SPECIAL_SECTION special case into the proper handler
function, getting rid of more if/then/else logic. The leading-space
tracking was tightened up a bit in the move. Add some comments describing
what is going on.
No changes to the generated output.
Signed-off-by: Jonathan Corbet <corbet@....net>
---
scripts/lib/kdoc/kdoc_parser.py | 80 ++++++++++++++++++++-------------
1 file changed, 48 insertions(+), 32 deletions(-)
diff --git a/scripts/lib/kdoc/kdoc_parser.py b/scripts/lib/kdoc/kdoc_parser.py
index a6ee8bac378d..3557c512c85a 100644
--- a/scripts/lib/kdoc/kdoc_parser.py
+++ b/scripts/lib/kdoc/kdoc_parser.py
@@ -1405,10 +1405,53 @@ class KernelDoc:
"""
STATE_SPECIAL_SECTION: a section ending with a blank line
"""
+ #
+ # If we have hit a blank line (only the " * " marker), then this
+ # section is done.
+ #
if KernRe(r"\s*\*\s*$").match(line):
self.entry.begin_section(ln, dump = True)
+ self.entry.contents += '\n'
self.state = state.BODY
- self.process_body(ln, line)
+ return
+ #
+ # Not a blank line, look for the other ways to end the section.
+ #
+ if self.is_new_section(ln, line) or self.is_comment_end(ln, line):
+ return
+ #
+ # OK, we should have a continuation of the text for this section.
+ #
+ if doc_content.search(line):
+ cont = doc_content.group(1)
+ #
+ # If the lines of text after the first in a special section have
+ # leading white space, we need to trim it out or Sphinx will get
+ # confused. For the second line (the None case), see what we
+ # find there and remember it.
+ #
+ if self.entry.leading_space is None:
+ r = KernRe(r'^(\s+)')
+ if r.match(cont):
+ self.entry.leading_space = len(r.group(1))
+ else:
+ self.entry.leading_space = 0
+ #
+ # Otherwise, before trimming any leading chars, be *sure*
+ # that they are white space. We should maybe warn if this
+ # isn't the case.
+ #
+ for i in range(0, self.entry.leading_space):
+ if cont[i] != " ":
+ self.entry.leading_space = i
+ break
+ #
+ # Add the trimmed result to the section and we're done.
+ #
+ self.entry.contents += cont[self.entry.leading_space:] + '\n'
+ else:
+ # Unknown line, ignore
+ self.emit_msg(ln, f"bad line: {line}")
def process_body(self, ln, line):
"""
@@ -1419,37 +1462,10 @@ class KernelDoc:
if doc_content.search(line):
cont = doc_content.group(1)
-
- if cont == "":
- self.entry.contents += "\n"
- else:
- if self.state == state.SPECIAL_SECTION:
- if self.entry.leading_space is None:
- r = KernRe(r'^(\s+)')
- if r.match(cont):
- self.entry.leading_space = len(r.group(1))
- else:
- self.entry.leading_space = 0
-
- # Double-check if leading space are realy spaces
- pos = 0
- for i in range(0, self.entry.leading_space):
- if cont[i] != " ":
- break
- pos += 1
-
- cont = cont[pos:]
-
- # NEW LOGIC:
- # In case it is different, update it
- if self.entry.leading_space != pos:
- self.entry.leading_space = pos
-
- self.entry.contents += cont + "\n"
- return
-
- # Unknown line, ignore
- self.emit_msg(ln, f"bad line: {line}")
+ self.entry.contents += cont + "\n"
+ else:
+ # Unknown line, ignore
+ self.emit_msg(ln, f"bad line: {line}")
def process_inline(self, ln, line):
"""STATE_INLINE: docbook comments within a prototype."""
--
2.49.0
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