131 lines
4.1 KiB
Python
131 lines
4.1 KiB
Python
# -------------------------------
|
|
# Difficult Rocket
|
|
# Copyright © 2020-2023 by shenjackyuanjie 3695888@qq.com
|
|
# All rights reserved
|
|
# -------------------------------
|
|
|
|
import re
|
|
from typing import Callable, List, Optional, Union, Set
|
|
|
|
from .data import Option, Argument, Flag, Parsed
|
|
from .descriptor import CallBackDescriptor
|
|
|
|
try:
|
|
from typing import Self
|
|
except ImportError:
|
|
from typing import TypeVar
|
|
Self = TypeVar("Self") # NOQA
|
|
|
|
from .exception import IllegalName
|
|
|
|
CallBack = Union[Callable[[str], None], str] # Equals to `Callable[[str], None] | str`
|
|
# 可调用对象或字符串作为回调
|
|
# A callable or str as callback
|
|
|
|
ParseArgFunc = Callable[[str], Optional[type]]
|
|
# 解析参数的函数，返回值为 None 时表示解析失败
|
|
# function to parse argument, return None when failed
|
|
|
|
EMPTY_WORDS = re.compile(r"\s", re.I)
|
|
|
|
|
|
def check_name(name: Union[str, List[str]]) -> None:
|
|
"""
|
|
Check the name or shortcuts of argument(s) or flag(s).
|
|
The name must not be empty str, and must not contains \\t or \\n or \\f or \\r.
|
|
If that not satisfy the requirements, it will raise exception `IllegalArgumentName`.
|
|
检查 参数或标记 的 名称或快捷方式 是否符合要求。
|
|
名称必须是非空的字符串，且不能包含 \\t 或 \\n 或 \\f 或 \\r。
|
|
如果不符合要求，将会抛出 `IllegalArgumentName` 异常。
|
|
:param name: arguments
|
|
:return: None
|
|
"""
|
|
if isinstance(name, str) and EMPTY_WORDS.search(name):
|
|
raise IllegalName("The name of argument must not contains empty words.")
|
|
elif isinstance(name, list) and all((not isinstance(i, str)) and EMPTY_WORDS.search(i) for i in name):
|
|
raise IllegalName("The name of shortcut must be 'str', and must not contains empty words.")
|
|
else:
|
|
raise TypeError("The type of name must be 'str' or 'list[str]'.")
|
|
|
|
|
|
class Literal:
|
|
_tip = CallBackDescriptor("_tip")
|
|
_func = CallBackDescriptor("_func")
|
|
_err_callback = CallBackDescriptor("_err_callback")
|
|
|
|
def __init__(self, name: str):
|
|
self.name: str = name
|
|
self.sub: List[Self] = []
|
|
self._tip: Optional[CallBack] = None
|
|
self._func: Optional[CallBack] = None
|
|
self._err_callback: Optional[CallBack] = None
|
|
|
|
self._opts: List[Option] = []
|
|
self._args: List[Argument] = []
|
|
self._flags: List[Flag] = []
|
|
|
|
def __call__(self, *nodes) -> Self:
|
|
self.sub += nodes
|
|
return self
|
|
|
|
def __repr__(self):
|
|
attrs = (k for k in self.__dict__ if not (k.startswith("__") and k.endswith("__")))
|
|
return f"{self.__class__.__name__}({', '.join(f'{k}={v!r}' for k in attrs if (v := self.__dict__[k]))})"
|
|
|
|
def arg(self, name: str, types: Optional[Set[type]] = None) -> Self:
|
|
Argument(name=name, types=types)
|
|
return self
|
|
|
|
def opt(
|
|
self,
|
|
name: str,
|
|
shortcuts: Optional[List[str]] = None,
|
|
optional: bool = True,
|
|
types: Optional[Set[type]] = None
|
|
) -> Self:
|
|
check_name(name)
|
|
if shortcuts is not None and len(shortcuts) != 0:
|
|
check_name(shortcuts)
|
|
self._opts.append(
|
|
Option(name=name, shortcuts=shortcuts, optional=optional, types=types)
|
|
)
|
|
return self
|
|
|
|
def opt_group(self, opts: List[Option], exclusive: bool = False):
|
|
...
|
|
|
|
def flag(self, name: str, shortcuts: Optional[List[str]] = None) -> Self:
|
|
check_name(name)
|
|
if shortcuts is not None and len(shortcuts) != 0:
|
|
check_name(shortcuts)
|
|
Flag(name=name, shortcuts=shortcuts)
|
|
...
|
|
return self
|
|
|
|
def flag_group(self, flags: List[Flag], exclusive: bool = False) -> Self:
|
|
|
|
...
|
|
return self
|
|
|
|
def error(self, callback: CallBack) -> Self:
|
|
self._err_callback = callback
|
|
return self
|
|
|
|
def run(self, func: CallBack) -> Self:
|
|
self._func = func
|
|
return self
|
|
|
|
def tip(self, tip: CallBack) -> Self:
|
|
self._tip = tip
|
|
return self
|
|
|
|
def parse(self, cmd: Union[str, List[str]]) -> Parsed:
|
|
...
|
|
|
|
def to_doc(self) -> str:
|
|
...
|
|
|
|
|
|
def builder(node: Literal) -> Literal:
|
|
...
|