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How to use has_skips method in Slash
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__init__.py
Source:__init__.py 
1"""2 Différentes variantes de constructeurs3 les constructeurs recoivent un flux d'éléments constitutif4 qu'ils agrègent en utilisant une fonction de génération5 en éléments constitués qu'ils retournent alors6"""7from ..base import Element8from ..constants import T_STATE9from typing import TypeVar, Iterator, Type, Callable, List, Dict, Union10import dataclasses11from .MB1 import META_BUILDER_112from .MB3 import META_BUILDER_313from .MB4 import META_BUILDER_414from .MB5 import META_BUILDER_515E = TypeVar("E", bound=Element)16F = TypeVar("F", bound=Element)17def meta_builder_1(cursor: Callable[[int], F], generator: Callable[[F, E], F], eof: Callable[[int], F]):18 """19 Cette variante gère le cas suivant :20 - éléménts en entrée : liste consécutive non ambigüe21 - éléments en sortie : liste consécutive non ambigüe22 - système d'indexage : inchangé23 :param cursor: Create a cursor at the given index24 :param generator: Generative function of the action to imply and the new state25 :param eof: end of file generator function26 :return:27 """28 def builder(src: Iterator[E]) -> Iterator[F]:29 old: E30 cur: F31 new: F32 cur = cursor(0)33 for old in src:34 while cur.to == old.at:35 new = generator(cur, old)36 if not new.is_terminal:37 cur = new38 continue39 if new.is_valid:40 cur = cursor(new.to)41 yield new42 continue43 if old.value == 'EOF':44 yield eof(old.to)45 break46 raise SyntaxError((cur, old, new))47 return builder48def meta_builder_2(cursor: Callable[[int], F],49 generator: Callable[[F, E], F],50 eof: Callable[[int], F]):51 """52 Cette variante gère le cas suivant :53 - éléménts en entrée : liste consécutive non ambigüe54 - éléments en sortie : liste consécutive non ambigüe55 - système d'indexage : normalisé (un pattern == un saut d'index +1)56 :param cursor: Create a cursor at the given index57 :param generator: Generative function of the action to imply and the new state58 :param eof: end of file generator function59 :return:60 """61 def builder(src: Iterator[E]) -> Iterator[F]:62 pos: int63 old: E64 cur: F65 new: F66 cur = cursor(0)67 pos = 068 for old in src:69 while cur.to == old.at:70 new = generator(cur, old)71 if not new.is_terminal:72 cur = new73 continue74 if new.is_valid:75 cur = cursor(new.to)76 yield dataclasses.replace(new, at=pos, to=pos + 1)77 pos += 178 continue79 if old.value == 'EOF':80 yield eof(old.to)81 break82 raise SyntaxError((cur, old, new))83 return builder84def meta_builder_3(cursor: Callable[[int], F],85 generator: Callable[[F, E], F],86 eof: Callable[[int], F],87 skips: List[T_STATE]):88 """89 Cette variante gère le cas suivant :90 - éléménts en entrée : liste consécutive non ambigüe91 - éléments en sortie : liste consécutive non ambigüe92 - système d'indexage : normalisé (un pattern == un saut d'index +1)93 - éléments ignorés : pris en compte !94 :param eof:95 :param cursor: Create a cursor at the given index96 :param generator: Generative function of the action to imply and the new state97 :param skips: List of values to ignore while returning terminal outputs98 :return:99 """100 def builder(src: Iterator[E]) -> Iterator[F]:101 cur: F = cursor(0)102 pos: int = 0103 for old in src:104 while cur.to == old.at:105 new: F = generator(cur, old)106 if not new.is_terminal:107 cur = new108 continue109 if new.is_valid:110 cur = cursor(new.to)111 if new.value in skips:112 continue113 else:114 new = dataclasses.replace(new, at=pos, to=pos + 1)115 pos += 1116 yield new117 continue118 if old.value == 'EOF':119 yield eof(pos)120 break121 raise SyntaxError((cur, old, new))122 return builder123def meta_builder_4(cursor: Callable[[int], F],124 generator: Callable[[F, E], Iterator[F]],125 eof: Callable[[int], F]):126 """127 Cette variante gère le cas suivant :128 - éléménts en entrée : liste consécutive non ambigüe129 - éléments en sortie : liste consécutive potentiellement ambigüe130 - système d'indexage : inchangé131 - éléments ignorés : pas d'éléments ignorés132 :param eof:133 :param cursor: Create a cursor at the given index134 :param generator: Generative function of the action to imply and the new state135 :return:136 """137 def builder(src: Iterator[E]) -> Iterator[F]:138 old: E139 curs: Dict[int, List[F]]140 new: F141 curs = {}142 def add_cur(cur: F):143 if cur.to not in curs:144 curs[cur.to] = [cur]145 elif cur not in curs[cur.to]:146 curs[cur.to].append(cur)147 add_cur(cursor(0))148 for old in src:149 # if old.at not in curs and old.value != 'EOF':150 # raise SyntaxError((curs, old))151 queue = curs.get(old.at, [])152 i = 0153 while i < len(queue):154 cur = queue[i]155 i += 1156 for new in generator(cur, old):157 if not new.is_terminal:158 add_cur(new)159 continue160 if new.is_valid:161 add_cur(cursor(new.to))162 yield new163 continue164 if old.value == 'EOF':165 yield eof(old.to)166 break167 return builder168def meta_builder_5(cursor: Callable[[int], F],169 generator: Callable[[F, Union[E, F]], Iterator[F]],170 eof: Callable[[int], F]):171 """172 Cette variante gère le cas suivant :173 - éléménts en entrée : liste consécutive potentiellement ambigüe174 - éléments en sortie : liste consécutive potentiellement ambigüe175 - système d'indexage : inchangé176 - éléments ignorés : pas d'éléments ignorés177 - génération : reflexive, le builder peut piocher dans les éléments qu'il génère178 :param eof:179 :param cursor: Create a cursor at the given index180 :param generator: Generative function of the action to imply and the new state181 :return:182 """183 def builder(src: Iterator[E]) -> Iterator[F]:184 old: E185 curs: Dict[int, List[F]]186 new: F187 curs = {}188 def add_cur(cur: F):189 to = cur.to190 if to not in curs:191 curs[to] = [cur]192 elif cur not in curs[to]:193 curs[to].append(cur)194 add_cur(cursor(0))195 stack = []196 j = 0197 def add_to_stack(obj: Union[E, F]):198 if obj not in stack:199 stack.insert(j, obj)200 for oldb in src:201 stack.append(oldb)202 while j < len(stack):203 old = stack[j]204 j += 1205 if old.at in curs:206 queue = curs[old.at]207 add_cur(cursor(old.at))208 i = 0209 while i < len(queue):210 cur = queue[i]211 i += 1212 for new in generator(cur, old):213 if not new.is_terminal:214 add_cur(new)215 continue216 if new.is_valid:217 add_cur(cursor(new.to))218 add_to_stack(new)219 yield new220 continue221 continue222 if oldb.value == 'EOF':223 yield eof(oldb.to)224 break225 # raise SyntaxError((curs, old))226 # for i, icurs in curs.items():227 # print(i, icurs)228 #229 # for j, istck in enumerate(stack):230 # print(j, istck)231 return builder232FORMAL_INPUTS = 1233FORMAL_OUTPUTS = 2234HAS_SKIPS = 4235REFLEXIVE = 8236def build_func(name: str,237 fun: str,238 formal_inputs: bool,239 formal_outputs: bool,240 reflexive: bool,241 input_cls: Type[Element],242 output_cls: Type[Element],243 skips: List[str] = None):244 has_skips = bool(skips)245 sign = FORMAL_INPUTS * formal_inputs + FORMAL_OUTPUTS * formal_outputs + HAS_SKIPS * has_skips + REFLEXIVE * reflexive246 if sign == FORMAL_INPUTS + FORMAL_OUTPUTS:247 return META_BUILDER_1(name=name, fun=fun, input_cls=input_cls, output_cls=output_cls)248 elif sign == FORMAL_INPUTS + FORMAL_OUTPUTS + HAS_SKIPS:249 return META_BUILDER_3(name=name, fun=fun, input_cls=input_cls, output_cls=output_cls, skips=skips)250 elif sign == FORMAL_INPUTS:251 return META_BUILDER_4(name=name, fun=fun, input_cls=input_cls, output_cls=output_cls)252 elif sign == FORMAL_INPUTS + REFLEXIVE:253 return META_BUILDER_5(name=name, fun=fun, input_cls=input_cls, output_cls=output_cls)254 else:255 raise Exception("invalid parameters combination")...
visitor_python.py
Source:visitor_python.py
1from itertools import chain2from visitor import Visitor, indent3class PythonVisitor(Visitor):4 def __init__(self):5 super(PythonVisitor, self).__init__()6 self.nbfn = 07 def compile_function(self, code, ctx, fnpattern="fn"):8 args = ", ".join(ctx.labels)9 if code.count("\n") == 0 and not code.startswith("return"):10 return "lambda {0}: ({1}) ".format(args, code)11 fname = "{0}_{1}".format(fnpattern, self.nbfn)12 self.nbfn += 113 fbody = "def {0}({1}):\n{2}".format(fname, args, indent(code))14 ctx.functions.append(fbody)15 return fname16 def compile(self, node):17 self.visit(node)18 res = [19 "#!/usr/bin/env python",20 ""21 "from pwpeg import *",22 "from pwpeg.helpers import *",23 ""24 ]25 if self.code_start:26 res.append("\n##############################################################\n# Start of included code")27 res.append(self.code_start)28 res.append("\n# End of included code\n##############################################################")29 has_skips = False30 res.append("\n# Forward declaration of Regular rules")31 for name, sr in sorted(self.rules_simple.items()):32 res.append("{0} = Rule().set_name(\"{1}\")".format(name, sr.name))33 if sr.skip: has_skips = True34 res.append("")35 res.append("\n# Forward declaration of Function rules")36 for name, fr in sorted(self.rules_function.items()):37 res.append("{0} = FunctionRule().set_name(\"{1}\")".format(name, fr.name))38 if fr.skip: has_skips = True39 res.append("")40 if has_skips:41 res.append("\n# Skips")42 for name, r in sorted(chain(self.rules_simple.items(), self.rules_function.items())):43 if r.skip:44 res.append("{0}.set_skip({1})".format(name, r.skip.name))45 res.append("")46 res.append("\n# Function Rules implementation")47 for name, fr in sorted(self.rules_function.items()):48 res.append("def _{0}{1}:".format(name, fr.args))49 for fn in fr.ctx.functions:50 res.append(indent(fn))51 res.append("")52 res.append(" return " + indent(fr.code)[4:])53 res.append("{0}.set_fn(_{0})\n".format(name))54 res.append("")55 res.append("\n# Simple Rules implementation")56 for name, sr in sorted(self.rules_simple.items()):57 for fn in sr.ctx.functions:58 res.append(fn)59 res.append("")60 if sr.code.startswith("Rule("):61 res.append("{0}.set_productions(".format(name) + sr.code[5:] + "\n")62 else:63 res.append("{0}.set_productions(".format(name) + sr.code + ")\n")64 res.append("")65 if self.code_end:66 res.append("\n##############################################################\n# Start of included code")67 res.append(self.code_end)68 res.append("\n# End of included code\n##############################################################")...
postingList.py
Source:postingList.py
1import math2class ListNode:3 # Initialisation4 def __init__(self, doc_id=None):5 self.doc_id = int(doc_id) # docId6 self.next = None # Points to next node7 self.skip_to = None # Points to skipped node8class postingList:9 # Initialisation10 def __init__(self, postingStr=None):11 self.head = None12 self.tail = None13 self.length = 014 self.has_skips = False15 # Populate postingList16 if postingStr != None:17 if type(postingStr) == str: # Input argument of type: string18 doc_ids = [int(i) for i in postingStr.split()]19 for doc_id in doc_ids:20 self.insert(ListNode(doc_id))21 elif type(postingStr) == list or type(postingStr) == set: # Input argument of type: list or set22 for doc_id in postingStr:23 self.insert(ListNode(doc_id))24 else:25 print('Input posting is not in the correct structure.')26 # Insertion at back of list27 def insert(self, node):28 if self.head == None:29 self.head = node30 self.tail = node31 else:32 self.tail.next = node33 self.tail = node34 self.length += 135 # Convert object to string36 def convertToString(self):37 result = ''38 cur = self.head39 while cur != None:40 result += str(cur.doc_id) + ' '41 cur = cur.next42 result = result.rstrip()43 return result44 # Gets node via search index45 def getNode(self, index):46 cur = self.head47 while index > 0:48 cur = cur.next49 index -= 150 return cur51 # Calculates skip interval based on the postingList length52 def skipInterval(self):53 return math.floor(math.sqrt(self.length))54 55 # Sets the skip pointer of node1 to node256 def skip(self, idx1, idx2):57 node1 = self.getNode(idx1)58 node2 = self.getNode(idx2)59 node1.skip_to = node260 # Adds skips61 def addSkips(self):62 if self.has_skips == False:63 node1 = 064 skips = self.skipInterval()65 node2 = skips66 while node2 < self.length:67 self.skip(node1, node2)68 node1 = node269 node2 += skips70 self.has_skips = True71 else:72 print('Posting list already added skips')...
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