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# Copyright (c) 2017-2026 Juancarlo Añez (apalala@gmail.com)
# SPDX-License-Identifier: BSD-4-Clause
from __future__ import annotations
from itertools import starmap
from typing import Any, NamedTuple, Protocol, runtime_checkable
class LineIndexInfo(NamedTuple):
filename: str
line: int
@staticmethod
def block_index(name, n) -> list[LineIndexInfo]:
return list(starmap(LineIndexInfo, zip(n * [name], range(n), strict=False)))
class LineInfo(NamedTuple):
filename: str
line: int
col: int
start: int
end: int
text: str
@runtime_checkable
class Tokenizer(Protocol):
def __init__(self, *ags: Any, **kwargs: Any): ...
@property
def text(self) -> str: ...
@property
def filename(self) -> str: ...
@property
def ignorecase(self) -> bool: ...
@property
def pos(self) -> int: ...
@property
def line(self) -> int: ...
def goto(self, pos) -> None: ...
def atend(self) -> bool: ...
def ateol(self) -> bool: ...
@property
def current(self) -> str | None: ...
@property
def token(self):
return self.current
def next(self) -> str | None: ...
def next_token(self) -> None: ...
def match(self, token: str) -> str | None: ...
def matchre(self, pattern: str) -> str | None: ...
def posline(self, pos: int | None = None) -> int: ...
def lineinfo(self, pos: int | None = None) -> LineInfo: ...
def get_line(self, n: int | None = None) -> str: ...
def get_lines(
self,
start: int | None = None,
end: int | None = None,
) -> list[str]: ...
def line_index(
self,
start: int = 0,
end: int | None = None,
) -> list[LineIndexInfo]: ...
def lookahead(self) -> str: ...
def lookahead_pos(self) -> str: ...
class NullTokenizer(Tokenizer):
def __init__(self, *ags: Any, **kwargs: Any):
pass
@property
def text(self) -> str:
return ''
@property
def filename(self) -> str:
return ''
@property
def ignorecase(self) -> bool:
return False
@property
def pos(self) -> int:
return 0
@property
def line(self) -> int:
return 0
def goto(self, pos) -> None:
return
def atend(self) -> bool:
return False
def ateol(self) -> bool:
return False
@property
def current(self) -> str | None:
return None
@property
def token(self):
return self.current
def next(self) -> str | None:
return None
def next_token(self) -> None:
return None
def match(self, token: str) -> str | None:
return None
def matchre(self, pattern: str) -> str | None:
return None
def posline(self, pos: int | None = None) -> int:
return 0
def lineinfo(self, pos: int | None = None) -> LineInfo:
return LineInfo('', 0, 0, 0, 0, '')
def get_line(self, n: int | None = None) -> str:
return ''
def get_lines(self, start: int | None = None, end: int | None = None) -> list[str]:
return []
def line_index(self, start: int = 0, end: int | None = None) -> list[LineIndexInfo]:
return []
def lookahead(self) -> str:
return ''
def lookahead_pos(self) -> str:
return ''
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