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# SPDX-License-Identifier: GPL-2.0-or-later
# <pep8 compliant>
# Module with function to extract a doctree from an reStructuredText file.
# Named 'Mini' because we only parse the minimum data needed to check
# Python classes, methods and attributes match up to those in existing modules.
# (To test for documentation completeness)
# note: literalinclude's are not followed.
# could be nice to add but not really needed either right now.
import collections
Directive = collections.namedtuple(
"Directive",
("type",
"value",
"value_strip",
"line",
"indent",
"members"))
def parse_rst_py(filepath):
import re
# Get the prefix assuming the line is lstrip()'d
# ..foo:: bar
# -->
# ("foo", "bar")
re_prefix = re.compile(r"^\.\.\s([a-zA-Z09\-]+)::\s*(.*)\s*$")
tree = collections.defaultdict(list)
indent_map = {}
indent_prev = 0
f = open(filepath, encoding="utf-8")
for i, line in enumerate(f):
line_strip = line.lstrip()
# ^\.\.\s[a-zA-Z09\-]+::.*$
# if line.startswith(".. "):
march = re_prefix.match(line_strip)
if march:
directive, value = march.group(1, 2)
indent = len(line) - len(line_strip)
value_strip = value.replace("(", " ").split()
value_strip = value_strip[0] if value_strip else ""
item = Directive(type=directive,
value=value,
value_strip=value_strip,
line=i,
indent=indent,
members=[])
tree[indent].append(item)
if indent_prev < indent:
indent_map[indent] = indent_prev
if indent > 0:
tree[indent_map[indent]][-1].members.append(item)
indent_prev = indent
f.close()
return tree[0]
def main():
# not intended use, but may as well print rst files passed as a test.
import sys
for arg in sys.argv:
if arg.lower().endswith((".txt", ".rst")):
items = parse_rst_py(arg)
for i in items:
print(i)
if __name__ == "__main__":
main()
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