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Commit 60800f1c authored by Eckhart Arnold's avatar Eckhart Arnold
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- parsers.py: support for rolling back of discarded capture and pop operations

parent 2721ad5f
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Showing with 358 additions and 330 deletions
DHParser/dsl.py
View file @ 60800f1c
......@@ -24,7 +24,10 @@ try:
import regex as re
except ImportError:
import re
from .typing import Any, cast, Tuple, Union
try:
from typing import Any, cast, Tuple, Union
except ImportError:
from .typing34 import Any, cast, Tuple, Union
from DHParser.ebnf import EBNFTransformer, EBNFCompiler, grammar_changed, \
get_ebnf_scanner, get_ebnf_grammar, get_ebnf_transformer, get_ebnf_compiler, \
......@@ -74,7 +77,7 @@ except ImportError:
from DHParser.toolkit import logging, is_filename, load_if_file
from DHParser.parsers import Grammar, Compiler, nil_scanner, \\
Lookbehind, Lookahead, Alternative, Pop, Required, Token, Synonym, \\
Optional, NegativeLookbehind, OneOrMore, RegExp, Retrieve, Sequence, RE, Capture, \\
Optional, NegativeLookbehind, OneOrMore, RegExp, Retrieve, Series, RE, Capture, \\
ZeroOrMore, Forward, NegativeLookahead, mixin_comment, compile_source, \\
last_value, counterpart, accumulate, ScannerFunc
from DHParser.syntaxtree import Node, traverse, remove_enclosing_delimiters, \\
......
DHParser/ebnf.py
View file @ 60800f1c
......@@ -23,11 +23,14 @@ try:
import regex as re
except ImportError:
import re
from .typing import Callable, Dict, List, Set, Tuple
try:
from typing import Callable, Dict, List, Set, Tuple
except ImportError:
from .typing34 import Callable, Dict, List, Set, Tuple
from DHParser.toolkit import load_if_file, escape_re, md5, sane_parser_name
from DHParser.parsers import Grammar, mixin_comment, nil_scanner, Forward, RE, NegativeLookahead, \
Alternative, Sequence, Optional, Required, OneOrMore, ZeroOrMore, Token, Compiler, \
Alternative, Series, Optional, Required, OneOrMore, ZeroOrMore, Token, Compiler, \
ScannerFunc
from DHParser.syntaxtree import Node, traverse, remove_enclosing_delimiters, reduce_single_child, \
replace_by_single_child, TOKEN_PTYPE, remove_expendables, remove_tokens, flatten, \
......@@ -121,26 +124,26 @@ class EBNFGrammar(Grammar):
wspL__ = ''
wspR__ = WSP__
EOF = NegativeLookahead(RE('.', wR=''))
list_ = Sequence(RE('\\w+'), ZeroOrMore(Sequence(Token(","), RE('\\w+'))))
list_ = Series(RE('\\w+'), ZeroOrMore(Series(Token(","), RE('\\w+'))))
regexp = RE('~?/(?:[^/]|(?<=\\\\)/)*/~?')
literal = Alternative(RE('"(?:[^"]|\\\\")*?"'), RE("'(?:[^']|\\\\')*?'"))
symbol = RE('(?!\\d)\\w+')
option = Sequence(Token("["), expression, Required(Token("]")))
repetition = Sequence(Token("{"), expression, Required(Token("}")))
oneormore = Sequence(Token("{"), expression, Token("}+"))
regexchain = Sequence(Token("<"), expression, Required(Token(">")))
group = Sequence(Token("("), expression, Required(Token(")")))
option = Series(Token("["), expression, Required(Token("]")))
repetition = Series(Token("{"), expression, Required(Token("}")))
oneormore = Series(Token("{"), expression, Token("}+"))
regexchain = Series(Token("<"), expression, Required(Token(">")))
group = Series(Token("("), expression, Required(Token(")")))
retrieveop = Alternative(Token("::"), Token(":"))
flowmarker = Alternative(Token("!"), Token("&"), Token("§"), Token("-!"), Token("-&"))
factor = Alternative(Sequence(Optional(flowmarker), Optional(retrieveop), symbol, NegativeLookahead(Token("="))),
Sequence(Optional(flowmarker), literal), Sequence(Optional(flowmarker), regexp),
Sequence(Optional(flowmarker), group), Sequence(Optional(flowmarker), regexchain),
Sequence(Optional(flowmarker), oneormore), repetition, option)
factor = Alternative(Series(Optional(flowmarker), Optional(retrieveop), symbol, NegativeLookahead(Token("="))),
Series(Optional(flowmarker), literal), Series(Optional(flowmarker), regexp),
Series(Optional(flowmarker), group), Series(Optional(flowmarker), regexchain),
Series(Optional(flowmarker), oneormore), repetition, option)
term = OneOrMore(factor)
expression.set(Sequence(term, ZeroOrMore(Sequence(Token("|"), term))))
directive = Sequence(Token("@"), Required(symbol), Required(Token("=")), Alternative(regexp, literal, list_))
definition = Sequence(symbol, Required(Token("=")), expression)
syntax = Sequence(Optional(RE('', wR='', wL=WSP__)), ZeroOrMore(Alternative(definition, directive)), Required(EOF))
expression.set(Series(term, ZeroOrMore(Series(Token("|"), term))))
directive = Series(Token("@"), Required(symbol), Required(Token("=")), Alternative(regexp, literal, list_))
definition = Series(symbol, Required(Token("=")), expression)
syntax = Series(Optional(RE('', wR='', wL=WSP__)), ZeroOrMore(Alternative(definition, directive)), Required(EOF))
root__ = syntax
......@@ -601,7 +604,7 @@ class EBNFCompiler(Compiler):
return self.non_terminal(node, 'Alternative')
def on_term(self, node) -> str:
return self.non_terminal(node, 'Sequence')
return self.non_terminal(node, 'Series')
def on_factor(self, node: Node) -> str:
assert node.children
......
DHParser/parsers.py
View file @ 60800f1c
......@@ -57,7 +57,10 @@ try:
import regex as re
except ImportError:
import re
from .typing import Any, Callable, Dict, Iterator, List, Set, Tuple, Union
try:
from typing import Any, Callable, Collection, Dict, Iterator, List, Set, Tuple, Union
except ImportError:
from .typing34 import Any, Callable, Dict, Iterator, List, Set, Tuple, Union
from DHParser.toolkit import is_logging, log_dir, logfile_basename, escape_re, sane_parser_name
from DHParser.syntaxtree import WHITESPACE_PTYPE, TOKEN_PTYPE, ZOMBIE_PARSER, ParserBase, \
......@@ -84,7 +87,7 @@ __all__ = ['ScannerFunc',
'Optional',
'ZeroOrMore',
'OneOrMore',
'Sequence',
'Series',
'Alternative',
'FlowOperator',
'Required',
......@@ -163,9 +166,15 @@ def add_parser_guard(parser_func):
location = len(text)
grammar = parser.grammar # grammar may be 'None' for unconnected parsers!
if grammar.history_tracking:
grammar.call_stack.append(parser)
grammar.moving_forward = True
if not grammar.moving_forward__:
# rollback variable changes for discarded branch of parsing tree
while grammar.rollback__ and grammar.rollback__[-1][0] <= location:
grammar.rollback__[-1][1]()
grammar.rollback__.pop()
grammar.moving_forward__ = True
if grammar.history_tracking__:
grammar.call_stack__.append(parser)
# if location has already been visited by the current parser,
# return saved result
......@@ -184,7 +193,7 @@ def add_parser_guard(parser_func):
# in case of a recursive call saves the result of the first
# (or left-most) call that matches
parser.visited[location] = (node, rest)
grammar.last_node = node # store last node for Lookbehind operator
grammar.last_node__ = node # store last node for Lookbehind operator
elif location in parser.visited:
# if parser did non match but a saved result exits, assume
# left recursion and use the saved result
......@@ -192,14 +201,14 @@ def add_parser_guard(parser_func):
parser.recursion_counter[location] -= 1
if grammar.history_tracking:
if grammar.history_tracking__:
# don't track returning parsers except in case an error has occurred
if grammar.moving_forward or (node and node._errors):
grammar.moving_forward = False
record = HistoryRecord(grammar.call_stack.copy(), node, len(rest))
grammar.history.append(record)
if grammar.moving_forward__ or (node and node._errors):
record = HistoryRecord(grammar.call_stack__.copy(), node, len(rest))
grammar.history__.append(record)
# print(record.stack, record.status, rest[:20].replace('\n', '|'))
grammar.call_stack.pop()
grammar.call_stack__.pop()
grammar.moving_forward__ = False
except RecursionError:
node = Node(None, text[:min(10, max(1, text.find("\n")))] + " ...")
......@@ -248,7 +257,7 @@ class Parser(ParserBase, metaclass=ParserMetaClass):
return self.name or self.ptype
def __add__(self, other):
return Sequence(self, other)
return Series(self, other)
def __or__(self, other):
return Alternative(self, other)
......@@ -324,9 +333,9 @@ class Grammar:
self.wspL__ = ''
if not hasattr(self.__class__, 'wspR__'):
self.wspR__ = ''
self.all_parsers = set() # type: Set[Parser]
self.dirty_flag = False
self.history_tracking = False
self.all_parsers__ = set() # type: Set[Parser]
self.dirty_flag__ = False
self.history_tracking__ = False
self._reset()
# prepare parsers in the class, first
self._assign_parser_names()
......@@ -338,13 +347,13 @@ class Grammar:
if self.wspL__:
self.wsp_left_parser__ = Whitespace(self.wspL__) # type: ParserBase
self.wsp_left_parser__.grammar = self
self.all_parsers.add(self.wsp_left_parser__) # don't you forget about me...
self.all_parsers__.add(self.wsp_left_parser__) # don't you forget about me...
else:
self.wsp_left_parser__ = ZOMBIE_PARSER
if self.wspR__:
self.wsp_right_parser__ = Whitespace(self.wspR__) # type: ParserBase
self.wsp_right_parser__.grammar = self
self.all_parsers.add(self.wsp_right_parser__) # don't you forget about me...
self.all_parsers__.add(self.wsp_right_parser__) # don't you forget about me...
else:
self.wsp_right_parser__ = ZOMBIE_PARSER
self.root__.apply(self._add_parser)
......@@ -353,35 +362,39 @@ class Grammar:
try:
return self.__dict__[key]
except KeyError:
parser = getattr(self, key, None)
if parser:
parser_template = getattr(self, key, None)
if parser_template:
# add parser to grammar object on the fly...
setattr(self, key, copy.deepcopy(parser))
self[key].apply(self._add_parser)
parser = copy.deepcopy(parser_template)
parser.apply(self._add_parser)
# assert self[key] == parser
return self[key]
raise KeyError('Unknown parser "%s" !' % key)
def _reset(self):
self.document__ = "" # type: str
# variables stored and recalled by Capture and Retrieve parsers
self.variables = dict() # type: Dict[str, List[str]]
self.document = "" # type: str
self.variables__ = dict() # type: Dict[str, List[str]]
self.rollback__ = [] # type: List[Tuple[int, Callable]]
# previously parsed node, needed by Lookbehind parser
self.last_node = None # type: Node
self.last_node__ = None # type: Node
# support for call stack tracing
self.call_stack = [] # type: List[Parser]
self.call_stack__ = [] # type: List[Parser]
# snapshots of call stacks
self.history = [] # type: List[HistoryRecord]
self.history__ = [] # type: List[HistoryRecord]
# also needed for call stack tracing
self.moving_forward = True
self.moving_forward__ = True # type: bool
# TODO: Either make sure not to miss out unconnected parsers or raise an error! Actually, the EBNF-Compiler should keep track of this!
def _add_parser(self, parser: Parser) -> None:
"""Adds the particular copy of the parser object to this
particular instance of Grammar.
"""
if parser.name:
assert parser.name not in self.__dict__, \
('Cannot add parser "%s" because a field with the same name '
'already exists in grammar object!' % parser.name)
setattr(self, parser.name, parser)
self.all_parsers.add(parser)
self.all_parsers__.add(parser)
parser.grammar = self
def __call__(self, document: str, start_parser="root__") -> Node:
......@@ -398,14 +411,14 @@ class Grammar:
# assert isinstance(document, str), type(document)
if self.root__ is None:
raise NotImplementedError()
if self.dirty_flag:
if self.dirty_flag__:
self._reset()
for parser in self.all_parsers:
for parser in self.all_parsers__:
parser.reset()
else:
self.dirty_flag = True
self.history_tracking = is_logging()
self.document = document
self.dirty_flag__ = True
self.history_tracking__ = is_logging()
self.document__ = document
parser = self[start_parser] if isinstance(start_parser, str) else start_parser
assert parser.grammar == self, "Cannot run parsers from a different grammar object!" \
" %s vs. %s" % (str(self), str(parser.grammar))
......@@ -425,29 +438,29 @@ class Grammar:
error_msg = "Parser stopped before end" + \
(("! trying to recover" +
(" but stopping history recording at this point."
if self.history_tracking else "..."))
if self.history_tracking__ else "..."))
if len(stitches) < MAX_DROPOUTS
else " too often! Terminating parser.")
stitches.append(Node(None, skip))
stitches[-1].add_error(error_msg)
if self.history_tracking:
if self.history_tracking__:
# some parsers may have matched and left history records with nodes != None.
# Because these are not connected to the stiched root node, their pos
# properties will not be initialized by setting the root node's pos property
# to zero. Therefore, their pos properties need to be initialized here
for record in self.history:
for record in self.history__:
if record.node and record.node._pos < 0:
record.node.pos = 0
record = HistoryRecord(self.call_stack.copy(), stitches[-1], len(rest))
self.history.append(record)
self.history_tracking = False
record = HistoryRecord(self.call_stack__.copy(), stitches[-1], len(rest))
self.history__.append(record)
self.history_tracking__ = False
if stitches:
if rest:
stitches.append(Node(None, rest))
result = Node(None, tuple(stitches))
if any(self.variables.values()):
if any(self.variables__.values()):
result.add_error("Capture-retrieve-stack not empty after end of parsing: "
+ str(self.variables))
+ str(self.variables__))
result.pos = 0 # calculate all positions
return result
......@@ -456,7 +469,7 @@ class Grammar:
document.
"""
def prepare_line(record):
excerpt = self.document.__getitem__(slice(*record.extent))[:25].replace('\n', '\\n')
excerpt = self.document__.__getitem__(slice(*record.extent))[:25].replace('\n', '\\n')
excerpt = "'%s'" % excerpt if len(excerpt) < 25 else "'%s...'" % excerpt
return record.stack, record.status, excerpt
......@@ -472,7 +485,7 @@ class Grammar:
name = self.__class__.__name__
log_file_name = name[:-7] if name.lower().endswith('grammar') else name
full_history, match_history, errors_only = [], [], []
for record in self.history:
for record in self.history__:
line = "; ".join(prepare_line(record))
full_history.append(line)
if record.node and record.node.parser.ptype != WHITESPACE_PTYPE:
......@@ -498,8 +511,8 @@ def dsl_error_msg(parser: Parser, error_str: str) -> str:
tacking has been turned in the grammar object.
"""
msg = ["DSL parser specification error:", error_str, 'Caught by parser "%s".' % str(parser)]
if parser.grammar.history:
msg.extend(["\nCall stack:", parser.grammar.history[-1].stack])
if parser.grammar.history__:
msg.extend(["\nCall stack:", parser.grammar.history__[-1].stack])
else:
msg.extend(["\nEnable history tracking in Grammar object to display call stack."])
return " ".join(msg)
......@@ -743,7 +756,7 @@ class NaryOperator(Parser):
def __init__(self, *parsers: Parser, name: str = '') -> None:
super(NaryOperator, self).__init__(name)
# assert all([isinstance(parser, Parser) for parser in parsers]), str(parsers)
self.parsers = parsers # type: Container ## [Parser]
self.parsers = parsers # type: Collection
def __deepcopy__(self, memo):
parsers = copy.deepcopy(self.parsers, memo)
......@@ -830,9 +843,9 @@ class OneOrMore(UnaryOperator):
return Node(self, results), text_
class Sequence(NaryOperator):
class Series(NaryOperator):
def __init__(self, *parsers: Parser, name: str = '') -> None:
super(Sequence, self).__init__(*parsers, name=name)
super(Series, self).__init__(*parsers, name=name)
assert len(self.parsers) >= 1
def __call__(self, text: str) -> Tuple[Node, str]:
......@@ -848,14 +861,14 @@ class Sequence(NaryOperator):
assert len(results) <= len(self.parsers)
return Node(self, results), text_
def __add__(self, other: 'Sequence') -> 'Sequence':
return Sequence(*(self.parsers + (other,)))
def __add__(self, other: 'Series') -> 'Series':
return Series(*(tuple(self.parsers) + (other,)))
def __radd__(self, other: 'Sequence') -> 'Sequence':
return Sequence(other, *self.parsers)
def __radd__(self, other: 'Series') -> 'Series':
return Series(other, *self.parsers)
# def __iadd__(self, other):
# if isinstance(other, Sequence):
# if isinstance(other, Series):
# self.parsers = self.parsers + other.parsers
# else:
# self.parsers = self.parsers + (other,)
......@@ -900,7 +913,7 @@ class Alternative(NaryOperator):
return Alternative(other, *self.parsers)
# def __ior__(self, other):
# if isinstance(other, Sequence):
# if isinstance(other, Series):
# self.parsers = self.parsers + other.parsers
# else:
# self.parsers = self.parsers + (other,)
......@@ -972,7 +985,7 @@ class Lookbehind(FlowOperator):
print("WARNING: Lookbehind Operator is experimental!")
def __call__(self, text: str) -> Tuple[Node, str]:
if isinstance(self.grammar.last_node, Lookahead):
if isinstance(self.grammar.last_node__, Lookahead):
return Node(self, '').add_error('Lookbehind right after Lookahead '
'does not make sense!'), text
if self.sign(self.condition()):
......@@ -985,7 +998,7 @@ class Lookbehind(FlowOperator):
def condition(self):
node = None
for node in iter_right_branch(self.grammar.last_node):
for node in iter_right_branch(self.grammar.last_node__):
if node.parser.name == self.parser.name:
return True
if node and isinstance(self.parser, RegExp) and \
......@@ -1013,11 +1026,12 @@ class Capture(UnaryOperator):
super(Capture, self).__init__(parser, name)
def __call__(self, text: str) -> Tuple[Node, str]:
node, text = self.parser(text)
node, text_ = self.parser(text)
if node:
stack = self.grammar.variables.setdefault(self.name, [])
stack = self.grammar.variables__.setdefault(self.name, [])
stack.append(str(node))
return Node(self, node), text
self.grammar.rollback__.append((len(text), lambda : stack.pop()))
return Node(self, node), text_
else:
return None, text
......@@ -1053,7 +1067,7 @@ class Retrieve(Parser):
def call(self, text: str) -> Tuple[Node, str]:
try:
stack = self.grammar.variables[self.symbol.name]
stack = self.grammar.variables__[self.symbol.name]
value = self.filter(stack)
except (KeyError, IndexError):
return Node(self, '').add_error(dsl_error_msg(self,
......@@ -1070,8 +1084,9 @@ class Pop(Retrieve):
def __call__(self, text: str) -> Tuple[Node, str]:
nd, txt = super(Pop, self).call(text) # call() instead of __call__() to avoid parser guard
if nd and not nd.error_flag:
stack = self.grammar.variables[self.symbol.name]
stack.pop()
stack = self.grammar.variables__[self.symbol.name]
value = stack.pop()
self.grammar.rollback__.append((len(text), lambda : stack.append(value)))
return nd, txt
......
DHParser/syntaxtree.py
View file @ 60800f1c
......@@ -27,8 +27,12 @@ try:
import regex as re
except ImportError:
import re
from .typing import AbstractSet, Any, ByteString, Callable, cast, Container, Iterator, List, \
NamedTuple, Sequence, Union, Text, Tuple
try:
from typing import AbstractSet, Any, ByteString, Callable, cast, Container, Dict, \
Iterator, List, NamedTuple, Sequence, Union, Text, Tuple
except ImportError:
from .typing34 import AbstractSet, Any, ByteString, Callable, cast, Container, Dict, \
Iterator, List, NamedTuple, Sequence, Union, Text, Tuple
from DHParser.toolkit import log_dir, expand_table, line_col, smart_list
......@@ -273,9 +277,9 @@ class Node:
def show(self) -> str:
"""Returns content as string, inserting error messages where
errors ocurred.
errors occurred.
"""
s = "".join(child.show_errors() for child in self.children) if self.children \
s = "".join(child.show() for child in self.children) if self.children \
else str(self.result)
return (' <<< Error on "%s" | %s >>> ' % (s, '; '.join(self._errors))) if self._errors else s
......@@ -389,7 +393,7 @@ class Node:
"""
for child in self.children:
child.propagate_error_flags()
self.error_flag |= child.error_flag
self.error_flag = self.error_flag or child.error_flag
def collect_errors(self, clear_errors=False) -> List[Error]:
"""
......@@ -605,7 +609,7 @@ def traverse(root_node, processing_table, key_func=key_tag_name) -> None:
# with a single value
table = {name: smart_list(call) for name, call in list(processing_table.items())}
table = expand_table(table)
cache = {}
cache = {} # type: Dict[str, List[Callable]]
def traverse_recursive(node):
if node.children:
......
DHParser/toolkit.py
View file @ 60800f1c
......@@ -38,7 +38,10 @@ try:
import regex as re
except ImportError:
import re
from .typing import List, Tuple
try:
from typing import List, Tuple
except ImportError:
from .typing34 import List, Tuple
__all__ = ['logging',
......
OLDSTUFF/test_ParserCombinators.py
View file @ 60800f1c
......@@ -50,8 +50,8 @@ class ArithmeticGrammar(ParserRoot):
constant.set(Sequence("constant", digit, ZeroOrMore(None, digit)))
variable.set(Alternative("variable", Token("x", wspcR=wspc__), Token("y", wspcR=wspc__), Token("z", wspcR=wspc__)))
factor = Alternative("factor", constant, variable, Sequence(None, Token("(", wspcR=wspc__), expression, Token(")", wspcR=wspc__)))
term = Sequence("term", factor, ZeroOrMore(None, Sequence(None, Alternative(None, Token("*", wspcR=wspc__), Token("/", wspcR=wspc__)), factor)))
expression.set(Sequence("expression", term, ZeroOrMore(None, Sequence(None, Alternative(None, Token("+", wspcR=wspc__), Token("-", wspcR=wspc__)), term))))
term = Sequence("term", factor, ZeroOrMore(None, Series(None, Alternative(None, Token("*", wspcR=wspc__), Token("/", wspcR=wspc__)), factor)))
expression.set(Sequence("expression", term, ZeroOrMore(None, Series(None, Alternative(None, Token("+", wspcR=wspc__), Token("-", wspcR=wspc__)), term))))
root__ = expression
"""
......@@ -96,7 +96,7 @@ class EBNFGrammar(ParserRoot):
option = Sequence("option", Token("[", wspcR=wspc__), expression, Token("]", wspcR=wspc__))
factor = Alternative("factor", symbol, literal, regexp, option, repetition, group)
term = Sequence("term", factor, ZeroOrMore(None, factor))
expression.set(Sequence("expression", term, ZeroOrMore(None, Sequence(None, Token("|", wspcR=wspc__), term))))
expression.set(Sequence("expression", term, ZeroOrMore(None, Series(None, Token("|", wspcR=wspc__), term))))
production = Sequence("production", symbol, Token("=", wspcR=wspc__), expression, Token(".", wspcR=wspc__))
syntax = ZeroOrMore("syntax", production)
root__ = syntax
......
examples/MLW/OLDSTUFF/MLW_compiler.py
View file @ 60800f1c
......@@ -15,7 +15,7 @@ try:
except ImportError:
import re
from DHParser.parsers import Grammar, Compiler, Alternative, Required, Token, \
Optional, OneOrMore, Sequence, RE, ZeroOrMore, NegativeLookahead, mixin_comment, compile_source
Optional, OneOrMore, Series, RE, ZeroOrMore, NegativeLookahead, mixin_comment, compile_source
from DHParser.syntaxtree import traverse, reduce_single_child, replace_by_single_child, no_transformation, \
remove_expendables, remove_tokens, flatten, \
WHITESPACE_KEYWORD, TOKEN_KEYWORD
......@@ -157,39 +157,39 @@ class MLWGrammar(Grammar):
WORT_GROSS = RE('[A-ZÄÖÜ][a-zäöüß]+', wL='')
WORT = RE('[A-ZÄÖÜ]?[a-zäöüß]+', wL='')
NAMENS_ABKÜRZUNG = RE('[A-ZÄÖÜÁÀ]\\.', wR='', wL='')
Name = Sequence(WORT, ZeroOrMore(Alternative(WORT, NAMENS_ABKÜRZUNG)))
Autorinfo = Sequence(Alternative(Token("AUTORIN"), Token("AUTOR")), Name)
Zusatz = Sequence(Token("ZUSATZ"), RE('\\s*.*', wR='', wL=''), TRENNER)
EinBeleg = Sequence(OneOrMore(Sequence(NegativeLookahead(Sequence(Optional(LEER), Alternative(Token("*"), Token("BEDEUTUNG"), Token("AUTOR"), Token("NAME"), Token("ZUSATZ")))), RE('\\s*.*\\s*', wR='', wL=''))), Optional(Zusatz))
Belege = Sequence(Token("BELEGE"), Optional(LEER), ZeroOrMore(Sequence(Token("*"), EinBeleg)))
DeutscheBedeutung = Sequence(Token("DEU"), RE('(?:(?![A-ZÄÖÜ][A-ZÄÖÜ]).)+', wL=''))
LateinischeBedeutung = Sequence(Token("LAT"), RE('(?:(?![A-ZÄÖÜ][A-ZÄÖÜ]).)+', wL=''))
Interpretamente = Sequence(LateinischeBedeutung, Optional(LEER), Required(DeutscheBedeutung), Optional(LEER))
Bedeutungskategorie = Sequence(RE('(?:(?![A-ZÄÖÜ][A-ZÄÖÜ]).)+', wL=''), Optional(LEER))
Bedeutung = Sequence(Alternative(Interpretamente, Bedeutungskategorie), Optional(Belege))
BedeutungsPosition = OneOrMore(Sequence(Token("BEDEUTUNG"), Optional(LEER), Required(Bedeutung)))
Name = Series(WORT, ZeroOrMore(Alternative(WORT, NAMENS_ABKÜRZUNG)))
Autorinfo = Series(Alternative(Token("AUTORIN"), Token("AUTOR")), Name)
Zusatz = Series(Token("ZUSATZ"), RE('\\s*.*', wR='', wL=''), TRENNER)
EinBeleg = Series(OneOrMore(Series(NegativeLookahead(Series(Optional(LEER), Alternative(Token("*"), Token("BEDEUTUNG"), Token("AUTOR"), Token("NAME"), Token("ZUSATZ")))), RE('\\s*.*\\s*', wR='', wL=''))), Optional(Zusatz))
Belege = Series(Token("BELEGE"), Optional(LEER), ZeroOrMore(Series(Token("*"), EinBeleg)))
DeutscheBedeutung = Series(Token("DEU"), RE('(?:(?![A-ZÄÖÜ][A-ZÄÖÜ]).)+', wL=''))
LateinischeBedeutung = Series(Token("LAT"), RE('(?:(?![A-ZÄÖÜ][A-ZÄÖÜ]).)+', wL=''))
Interpretamente = Series(LateinischeBedeutung, Optional(LEER), Required(DeutscheBedeutung), Optional(LEER))
Bedeutungskategorie = Series(RE('(?:(?![A-ZÄÖÜ][A-ZÄÖÜ]).)+', wL=''), Optional(LEER))
Bedeutung = Series(Alternative(Interpretamente, Bedeutungskategorie), Optional(Belege))
BedeutungsPosition = OneOrMore(Series(Token("BEDEUTUNG"), Optional(LEER), Required(Bedeutung)))
VerweisZiel = RE('<\\w+>')
Verweis = RE('\\w+')
Beleg = Verweis
Schreibweise = Alternative(Token("vizreg-"), Token("festregel(a)"), Token("fezdregl(a)"), Token("fat-"))
SWVariante = Sequence(Schreibweise, Token(":"), Beleg)
SWVariante = Series(Schreibweise, Token(":"), Beleg)
SWTyp = Alternative(Token("script."), Token("script. fat-"))
SchreibweisenPosition = Sequence(Token("SCHREIBWEISE"), Optional(LEER), Required(SWTyp), Token(":"), Optional(LEER), Required(SWVariante), ZeroOrMore(Sequence(TRENNER, SWVariante)), Optional(LEER))
SchreibweisenPosition = Series(Token("SCHREIBWEISE"), Optional(LEER), Required(SWTyp), Token(":"), Optional(LEER), Required(SWVariante), ZeroOrMore(Series(TRENNER, SWVariante)), Optional(LEER))
ArtikelKopf = SchreibweisenPosition
_genus = Alternative(Token("maskulinum"), Token("m."), Token("femininum"), Token("f."), Token("neutrum"), Token("n."))
Flexion = RE('-?[a-z]+', wL='')
Flexionen = Sequence(Flexion, ZeroOrMore(Sequence(Token(","), Required(Flexion))))
GVariante = Sequence(Flexionen, Optional(_genus), Token(":"), Beleg)
GrammatikVarianten = Sequence(TRENNER, GVariante)
Flexionen = Series(Flexion, ZeroOrMore(Series(Token(","), Required(Flexion))))
GVariante = Series(Flexionen, Optional(_genus), Token(":"), Beleg)
GrammatikVarianten = Series(TRENNER, GVariante)
_wortart = Alternative(Token("nomen"), Token("n."), Token("verb"), Token("v."), Token("adverb"), Token("adv."), Token("adjektiv"), Token("adj."))
GrammatikPosition = Sequence(Token("GRAMMATIK"), Optional(LEER), Required(_wortart), Required(TRENNER), Required(Flexionen), Optional(_genus), ZeroOrMore(GrammatikVarianten), Optional(TRENNER))
LVZusatz = Sequence(Token("ZUSATZ"), Token("sim."))
GrammatikPosition = Series(Token("GRAMMATIK"), Optional(LEER), Required(_wortart), Required(TRENNER), Required(Flexionen), Optional(_genus), ZeroOrMore(GrammatikVarianten), Optional(TRENNER))
LVZusatz = Series(Token("ZUSATZ"), Token("sim."))
LVariante = RE('(?:[a-z]|-)+')
LemmaVarianten = Sequence(Token("VARIANTEN"), Optional(LEER), Required(LVariante), ZeroOrMore(Sequence(TRENNER, LVariante)), Optional(Sequence(TRENNER, LVZusatz)), Optional(TRENNER))
LemmaVarianten = Series(Token("VARIANTEN"), Optional(LEER), Required(LVariante), ZeroOrMore(Series(TRENNER, LVariante)), Optional(Series(TRENNER, LVZusatz)), Optional(TRENNER))
_tll = Token("*")
Lemma = Sequence(Optional(_tll), WORT_KLEIN, Optional(LEER))
LemmaPosition = Sequence(Token("LEMMA"), Required(Lemma), Optional(LemmaVarianten), Required(GrammatikPosition))
Artikel = Sequence(Optional(LEER), Required(LemmaPosition), Optional(ArtikelKopf), Required(BedeutungsPosition), Required(Autorinfo), Optional(LEER), DATEI_ENDE)
Lemma = Series(Optional(_tll), WORT_KLEIN, Optional(LEER))
LemmaPosition = Series(Token("LEMMA"), Required(Lemma), Optional(LemmaVarianten), Required(GrammatikPosition))
Artikel = Series(Optional(LEER), Required(LemmaPosition), Optional(ArtikelKopf), Required(BedeutungsPosition), Required(Autorinfo), Optional(LEER),