def renderf()

in scripts/extractdoc.py [0:0]
37 lines of code
10 McCabe index (conditional complexity)

def renderf(filename, basedir=os.curdir):
    lang = os.path.splitext(filename)[1][1:]
    show = False
    code = []
    body = []
    with open(filename) as fp:
        for line in fp:
            if (not show) and re.search(r'^\s*/// !show', line, re.MULTILINE):
                show = True
                continue

            if show and re.search(r'^\s*/// !hide', line, re.MULTILINE):
                show = False
                if len(body):
                    body.append(cat(
                        f'```{lang}',
                        textwrap.dedent(cat(*code)),
                        '```',
                        f'[{os.path.basename(filename)}]({os.path.relpath(filename, basedir)})',
                    ))
                continue

            if show:
                code.append(line.rstrip())
                continue
            else:
                code = []

            if re.search(r'^\s*/// !tree', line, re.MULTILINE):
                body.append(cat(
                    '```',
                    sh(f'cd {os.path.dirname(filename)} && tree -L 3 -F .').rstrip(),
                    '```',
                ))
                continue

            m = re.search(r'^\s*/// !!\s+(.*)', line, re.MULTILINE)
            if m:
                body.append(m.group(1))
                continue

    return cat(*body)