"""This file contains utilities to decribe a (regex) pattern"""
from typing import (
    Pattern as RegexPattern,
    Match as RegexMatch,
    Optional,
    TypeVar,
)

from ..core.inputscanner import InputScanner

__all__ = ["Pattern"]

PatternType = TypeVar("PatternType", bound="Pattern")


class Pattern:
    """Parent class of all patterns"""

    def __init__(
        self, input_scanner: InputScanner, parent: Optional[PatternType] = None
    ) -> None:
        self._input_scanner = input_scanner
        self._starting_pattern: Optional[RegexPattern] = None
        self._match_pattern: Optional[RegexPattern] = None
        # TODO: use the following two
        self._until_pattern: Optional[RegexPattern] = None
        self._until_after: Optional[RegexPattern] = None

    def read(self) -> str:
        res = self._input_scanner.read(self._starting_pattern)
        if (self._starting_pattern is None) or res:
            res += self._input_scanner.read(self._match_pattern)
        return res

13ba0c12828353bd4ca305b391c374a47c897e31
<mask token>


class Pattern:
    <mask token>

    def __init__(self, input_scanner: InputScanner, parent: Optional[
        PatternType]=None) ->None:
        self._input_scanner = input_scanner
        self._starting_pattern: Optional[RegexPattern] = None
        self._match_pattern: Optional[RegexPattern] = None
        self._until_pattern: Optional[RegexPattern] = None
        self._until_after: Optional[RegexPattern] = None
    <mask token>

<mask token>


class Pattern:
    <mask token>

    def __init__(self, input_scanner: InputScanner, parent: Optional[
        PatternType]=None) ->None:
        self._input_scanner = input_scanner
        self._starting_pattern: Optional[RegexPattern] = None
        self._match_pattern: Optional[RegexPattern] = None
        self._until_pattern: Optional[RegexPattern] = None
        self._until_after: Optional[RegexPattern] = None

    def read(self) ->str:
        res = self._input_scanner.read(self._starting_pattern)
        if self._starting_pattern is None or res:
            res += self._input_scanner.read(self._match_pattern)
        return res

<mask token>
__all__ = ['Pattern']
PatternType = TypeVar('PatternType', bound='Pattern')


class Pattern:
    """Parent class of all patterns"""

    def __init__(self, input_scanner: InputScanner, parent: Optional[
        PatternType]=None) ->None:
        self._input_scanner = input_scanner
        self._starting_pattern: Optional[RegexPattern] = None
        self._match_pattern: Optional[RegexPattern] = None
        self._until_pattern: Optional[RegexPattern] = None
        self._until_after: Optional[RegexPattern] = None

    def read(self) ->str:
        res = self._input_scanner.read(self._starting_pattern)
        if self._starting_pattern is None or res:
            res += self._input_scanner.read(self._match_pattern)
        return res

<mask token>
from typing import Pattern as RegexPattern, Match as RegexMatch, Optional, TypeVar
from ..core.inputscanner import InputScanner
__all__ = ['Pattern']
PatternType = TypeVar('PatternType', bound='Pattern')


class Pattern:
    """Parent class of all patterns"""

    def __init__(self, input_scanner: InputScanner, parent: Optional[
        PatternType]=None) ->None:
        self._input_scanner = input_scanner
        self._starting_pattern: Optional[RegexPattern] = None
        self._match_pattern: Optional[RegexPattern] = None
        self._until_pattern: Optional[RegexPattern] = None
        self._until_after: Optional[RegexPattern] = None

    def read(self) ->str:
        res = self._input_scanner.read(self._starting_pattern)
        if self._starting_pattern is None or res:
            res += self._input_scanner.read(self._match_pattern)
        return res

"""This file contains utilities to decribe a (regex) pattern"""
from typing import (
    Pattern as RegexPattern,
    Match as RegexMatch,
    Optional,
    TypeVar,
)

from ..core.inputscanner import InputScanner

__all__ = ["Pattern"]

PatternType = TypeVar("PatternType", bound="Pattern")


class Pattern:
    """Parent class of all patterns"""

    def __init__(
        self, input_scanner: InputScanner, parent: Optional[PatternType] = None
    ) -> None:
        self._input_scanner = input_scanner
        self._starting_pattern: Optional[RegexPattern] = None
        self._match_pattern: Optional[RegexPattern] = None
        # TODO: use the following two
        self._until_pattern: Optional[RegexPattern] = None
        self._until_after: Optional[RegexPattern] = None

    def read(self) -> str:
        res = self._input_scanner.read(self._starting_pattern)
        if (self._starting_pattern is None) or res:
            res += self._input_scanner.read(self._match_pattern)
        return res
