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#!/usr/bin/env python3
#
# Copyright (C) 2019 Simmo Saan <simmo.saan@gmail.com>
# Copyright (C) 2021-2022 Sébastien Helleu <flashcode@flashtux.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
#
"""
Generate Python stub: API constants and functions, with type annotations.
This script requires Python 3.6+.
"""
from pathlib import Path
import re
DOC_DIR = Path(__file__).resolve().parent / "en"
STUB_HEADER = """\
#
# WeeChat Python stub file, auto-generated by python_stub.py.
# DO NOT EDIT BY HAND!
#
from typing import Dict
"""
CONSTANT_RE = (
r"( |\|) `(?P<constant>WEECHAT_[A-Z0-9_]+)` "
r"\((?P<type>(string|integer))\)(?: \+)?"
)
FUNCTION_RE = r"""\[source,python\]
----
# prototype
def (?P<function>\w+)(?P<args>[^)]*)(?P<return>\) -> [^:]+:) \.\.\."""
def print_stub_constants() -> None:
"""Print constants, extracted from the Scripting guide."""
types = {
"integer": "int",
"string": "str",
}
constant_pattern = re.compile(CONSTANT_RE)
with open(DOC_DIR / "weechat_scripting.en.adoc") as scripting_file:
scripting = scripting_file.read()
for match in constant_pattern.finditer(scripting):
print(f'{match["constant"]}: {types[match["type"]]}')
def print_stub_functions() -> None:
"""Print function prototypes, extracted from the Plugin API reference."""
function_pattern = re.compile(FUNCTION_RE, re.DOTALL)
with open(DOC_DIR / "weechat_plugin_api.en.adoc") as api_doc_file:
api_doc = api_doc_file.read()
for match in function_pattern.finditer(api_doc):
url = f'https://weechat.org/doc/api/#_{match["function"]}'
print(
f"""\n
def {match["function"]}{match["args"]}{match["return"]}
\"""`{match["function"]} in WeeChat plugin API reference <{url}>`_\"""
..."""
)
def stub_api() -> None:
"""Write Python stub file."""
print(STUB_HEADER)
print_stub_constants()
print_stub_functions()
if __name__ == "__main__":
stub_api()
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