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docs: kdoc: move the declaration regexes out of process_name()

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Move two complex regexes up with the other patterns, decluttering this
function and allowing the compilation to be done once rather than for every
kerneldoc comment.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250606163438.229916-9-corbet@lwn.net
This commit is contained in:
Jonathan Corbet
2025-06-06 10:34:37 -06:00
parent b23c71080b
commit 0682bde2c7
1 changed files with 17 additions and 13 deletions
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30
scripts/lib/kdoc/kdoc_parser.py
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@@ -47,7 +47,6 @@ doc_sect = doc_com + \
flags=re.I, cache=False)
doc_content = doc_com_body + KernRe(r'(.*)', cache=False)
doc_block = doc_com + KernRe(r'DOC:\s*(.*)?', cache=False)
doc_inline_start = KernRe(r'^\s*/\*\*\s*$', cache=False)
doc_inline_sect = KernRe(r'\s*\*\s*(@\s*[\w][\w\.]*\s*):(.*)', cache=False)
doc_inline_end = KernRe(r'^\s*\*/\s*$', cache=False)
@@ -60,6 +59,18 @@ export_symbol_ns = KernRe(r'^\s*EXPORT_SYMBOL_NS(_GPL)?\s*\(\s*(\w+)\s*,\s*"\S+"
type_param = KernRe(r"\@(\w*((\.\w+)|(->\w+))*(\.\.\.)?)", cache=False)
#
# Tests for the beginning of a kerneldoc block in its various forms.
#
doc_block = doc_com + KernRe(r'DOC:\s*(.*)?', cache=False)
doc_begin_data = KernRe(r"^\s*\*?\s*(struct|union|enum|typedef)\b\s*(\w*)", cache = False)
doc_begin_func = KernRe(str(doc_com) + # initial " * '
r"(?:\w+\s*\*\s*)?" + # type (not captured)
r'(?:define\s+)?' + # possible "define" (not captured)
r'(\w+)\s*(?:\(\w*\))?\s*' + # name and optional "(...)"
r'(?:[-:].*)?$', # description (not captured)
cache = False)
#
# A little helper to get rid of excess white space
#
@@ -1232,22 +1243,15 @@ class KernelDoc:
if doc_decl.search(line):
self.entry.identifier = doc_decl.group(1)
decl_start = str(doc_com) # comment block asterisk
fn_type = r"(?:\w+\s*\*\s*)?" # type (for non-functions)
parenthesis = r"(?:\(\w*\))?" # optional parenthesis on function
decl_end = r"(?:[-:].*)" # end of the name part
# Test for data declaration
r = KernRe(r"^\s*\*?\s*(struct|union|enum|typedef)\b\s*(\w*)")
r2 = KernRe(fr"^{decl_start}{fn_type}(?:define\s+)?(\w+)\s*{parenthesis}\s*{decl_end}?$")
if r.search(line):
self.entry.decl_type = r.group(1)
self.entry.identifier = r.group(2)
if doc_begin_data.search(line):
self.entry.decl_type = doc_begin_data.group(1)
self.entry.identifier = doc_begin_data.group(2)
#
# Look for a function description
#
elif r2.search(line):
self.entry.identifier = r2.group(1)
elif doc_begin_func.search(line):
self.entry.identifier = doc_begin_func.group(1)
self.entry.decl_type = "function"
#
# We struck out.