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statemachine	[ DIR ]	drwxr-xr-x
AcManForm.dfm	38.22 KB	-rw-r--r--
LAparser.py	20.62 KB	-rw-r--r--
README.md	5.13 KB	-rw-r--r--
Setup.ini	1.41 KB	-rw-r--r--
SimpleCalc.py	3.58 KB	-rw-r--r--
SingleForm.dfm	42.7 KB	-rw-r--r--
TAP.py	7.6 KB	-rw-r--r--
TAP_diagram.html	28.6 KB	-rw-r--r--
__init__.py	0 B	-rw-r--r--
adventureEngine.py	21.91 KB	-rw-r--r--
adventure_game_parser_diagram....	38.37 KB	-rw-r--r--
antlr_grammar.py	11.07 KB	-rw-r--r--
antlr_grammar_diagram.html	269.88 KB	-rw-r--r--
antlr_grammar_tests.py	2.89 KB	-rw-r--r--
apicheck.py	2.49 KB	-rw-r--r--
apicheck_diagram.html	12.56 KB	-rw-r--r--
bf.py	4.27 KB	-rw-r--r--
bf_diagram.html	6.74 KB	-rw-r--r--
bigquery_view_parser.py	62.51 KB	-rw-r--r--
booleansearchparser.py	15.26 KB	-rw-r--r--
btpyparse.py	4.16 KB	-rw-r--r--
builtin_parse_action_demo.py	817 B	-rw-r--r--
cLibHeader.py	853 B	-rw-r--r--
chemical_formulas.html	5.28 KB	-rw-r--r--
chemical_formulas.py	3.33 KB	-rw-r--r--
commasep.py	707 B	-rw-r--r--
complex_chemical_formulas.py	5.26 KB	-rw-r--r--
complex_chemical_formulas_diag...	22.88 KB	-rw-r--r--
configParse.py	2 KB	-rw-r--r--
cpp_enum_parser.py	1.35 KB	-rw-r--r--
cuneiform_python.py	2.57 KB	-rw-r--r--
datetime_parse_actions.py	1.9 KB	-rw-r--r--
decaf_parser.py	7.34 KB	-rw-r--r--
decaf_parser_diagram.html	233.34 KB	-rw-r--r--
delta_time.py	21.57 KB	-rw-r--r--
delta_time_diagram.html	106.3 KB	-rw-r--r--
dfmparse.py	7.05 KB	-rw-r--r--
dhcpd_leases_parser.py	2.98 KB	-rw-r--r--
dictExample.py	1.73 KB	-rw-r--r--
dictExample2.py	2.1 KB	-rw-r--r--
directx_x_file_parser.html	35.78 KB	-rw-r--r--
directx_x_file_parser.py	5.67 KB	-rw-r--r--
ebnf.py	4.49 KB	-rw-r--r--
ebnf_diagram.html	30.49 KB	-rw-r--r--
ebnf_number_parser_diagram.htm...	29.87 KB	-rw-r--r--
ebnf_number_words.py	2.06 KB	-rw-r--r--
ebnftest.py	2.01 KB	-rw-r--r--
email_address_parser.py	1.18 KB	-rw-r--r--
eval_arith.py	6.15 KB	-rw-r--r--
excel_expr.py	2.2 KB	-rw-r--r--
fourFn.py	10.27 KB	-rw-r--r--
gen_ctypes.py	5.28 KB	-rw-r--r--
getNTPserversNew.py	1.11 KB	-rw-r--r--
greeting.py	518 B	-rw-r--r--
greetingInGreek.py	425 B	-rw-r--r--
greetingInKorean.py	495 B	-rw-r--r--
groupUsingListAllMatches.py	509 B	-rw-r--r--
hola_mundo.py	2.02 KB	-rw-r--r--
html_stripper.py	1.68 KB	-rw-r--r--
html_table_parser.py	2.16 KB	-rw-r--r--
httpServerLogParser.py	3.48 KB	-rw-r--r--
idlParse.py	7.53 KB	-rw-r--r--
include_preprocessor.py	2.63 KB	-rw-r--r--
indentedGrammarExample.py	1022 B	-rw-r--r--
indented_block_example.py	712 B	-rw-r--r--
infix_math_parser.py	6.33 KB	-rw-r--r--
inv_regex.py	8.08 KB	-rw-r--r--
javascript_grammar.g	18.1 KB	-rw-r--r--
jsonParser.py	4.7 KB	-rw-r--r--
left_recursion.py	1.41 KB	-rw-r--r--
lineno_example.py	1.49 KB	-rw-r--r--
listAllMatches.py	1.57 KB	-rw-r--r--
lox_parser.py	6.17 KB	-rw-r--r--
lox_parser_diagram.html	136.52 KB	-rw-r--r--
lua_parser.py	8.14 KB	-rw-r--r--
lua_parser_diagram.html	221.2 KB	-rw-r--r--
lucene_grammar.py	8.81 KB	-rw-r--r--
lucene_grammar_diagram.html	46.24 KB	-rw-r--r--
macro_expander.py	1.77 KB	-rw-r--r--
make_diagram.py	1.62 KB	-rw-r--r--
matchPreviousDemo.py	586 B	-rw-r--r--
mongodb_query_expression.html	107.18 KB	-rw-r--r--
mongodb_query_expression.py	19.77 KB	-rw-r--r--
mongodb_query_expression_step_...	7.6 KB	-rw-r--r--
mozilla.ics	752 B	-rw-r--r--
mozillaCalendarParser.py	2.71 KB	-rw-r--r--
nested.py	579 B	-rw-r--r--
nested_markup.py	1.85 KB	-rw-r--r--
number_words.py	4.01 KB	-rw-r--r--
number_words_diagram.html	38.28 KB	-rw-r--r--
numerics.py	1.34 KB	-rw-r--r--
oc.py	4.34 KB	-rw-r--r--
one_to_ninety_nine.py	1.88 KB	-rw-r--r--
parseTabularData.py	1.68 KB	-rw-r--r--
parse_python_value.html	49.46 KB	-rw-r--r--
parse_python_value.py	4.09 KB	-rw-r--r--
parse_results_sum_example.py	853 B	-rw-r--r--
partial_gene_match.py	2.33 KB	-rw-r--r--
pgn.py	3.34 KB	-rw-r--r--
position.py	2.17 KB	-rw-r--r--
protobuf_parser.py	3.89 KB	-rw-r--r--
pythonGrammarParser.py	8.08 KB	-rw-r--r--
railroad_diagram_demo.py	1.55 KB	-rw-r--r--
range_check.py	2.9 KB	-rw-r--r--
readJson.py	120.73 KB	-rw-r--r--
removeLineBreaks.py	1.8 KB	-rw-r--r--
roman_numerals.py	3.64 KB	-rw-r--r--
roman_numerals_diagram.html	29.71 KB	-rw-r--r--
rosettacode.py	7.73 KB	-rw-r--r--
rosettacode_diagram.html	90.46 KB	-rw-r--r--
scanExamples.py	2.36 KB	-rw-r--r--
searchParserAppDemo.py	962 B	-rw-r--r--
searchparser.py	10.4 KB	-rw-r--r--
select_parser.py	8.72 KB	-rw-r--r--
sexpParser.py	5.23 KB	-rw-r--r--
shapes.py	1.69 KB	-rw-r--r--
simpleArith.py	2.42 KB	-rw-r--r--
simpleBool.py	3.19 KB	-rw-r--r--
simpleSQL.py	3.16 KB	-rw-r--r--
simpleWiki.py	1.08 KB	-rw-r--r--
snmp_api.h	28.69 KB	-rw-r--r--
sql2dot.py	3.07 KB	-rw-r--r--
stackish.py	2.71 KB	-rw-r--r--
tag_emitter.py	968 B	-rw-r--r--
tag_metadata.py	1012 B	-rw-r--r--
tag_metadata_diagram.html	5.7 KB	-rw-r--r--
test_bibparse.py	8.72 KB	-rw-r--r--
unicode_denormalizer.py	5.02 KB	-rw-r--r--
urlExtractor.py	1.03 KB	-rw-r--r--
urlExtractorNew.py	2.4 KB	-rw-r--r--
verilog_parse.py	31.16 KB	-rw-r--r--
withAttribute.py	912 B	-rw-r--r--
wordsToNum.py	2.99 KB	-rw-r--r--

Code Editor : inv_regex.py

#
# original file: https://raw.githubusercontent.com/pyparsing/pyparsing/pyparsing_3.0.9/examples/invRegex.py
#
# Copyright 2008, Paul McGuire
#
# pyparsing script to expand a regular expression into all possible matching strings
# Supports:
# - {n} and {m,n} repetition, but not unbounded + or * repetition
# - ? optional elements
# - [] character ranges
# - () grouping
# - | alternation
#
__all__ = ["count", "invert"]

from pyparsing import (
    Literal,
    one_of,
    Empty,
    printables,
    ParserElement,
    Combine,
    SkipTo,
    infix_notation,
    ParseFatalException,
    Word,
    nums,
    OpAssoc,
    Suppress,
    ParseResults,
    srange,
)

ParserElement.enablePackrat()

class CharacterRangeEmitter:
    def __init__(self, chars):
        # remove duplicate chars in character range, but preserve original order
        seen = set()
        self.charset = "".join(seen.add(c) or c for c in chars if c not in seen)

def __str__(self):
        return "[" + self.charset + "]"

def __repr__(self):
        return "[" + self.charset + "]"

def make_generator(self):
        def gen_chars():
            yield from self.charset

return gen_chars

class OptionalEmitter:
    def __init__(self, expr):
        self.expr = expr

def make_generator(self):
        def optional_gen():
            yield ""
            yield from self.expr.make_generator()()

return optional_gen

class DotEmitter:
    def make_generator(self):
        def dot_gen():
            yield from printables

return dot_gen

class GroupEmitter:
    def __init__(self, exprs):
        self.exprs = ParseResults(exprs)

def make_generator(self):
        def group_gen():
            def recurse_list(elist):
                if len(elist) == 1:
                    yield from elist[0].make_generator()()
                else:
                    for s in elist[0].make_generator()():
                        for s2 in recurse_list(elist[1:]):
                            yield s + s2

if self.exprs:
                yield from recurse_list(self.exprs)

return group_gen

class AlternativeEmitter:
    def __init__(self, exprs):
        self.exprs = exprs

def make_generator(self):
        def alt_gen():
            for e in self.exprs:
                yield from e.make_generator()()

return alt_gen

class LiteralEmitter:
    def __init__(self, lit):
        self.lit = lit

def __str__(self):
        return "Lit:" + self.lit

def __repr__(self):
        return "Lit:" + self.lit

def make_generator(self):
        def lit_gen():
            yield self.lit

return lit_gen

def handle_range(toks):
    return CharacterRangeEmitter(srange(toks[0]))

def handle_repetition(toks):
    toks = toks[0]
    if toks[1] in "*+":
        raise ParseFatalException("", 0, "unbounded repetition operators not supported")
    if toks[1] == "?":
        return OptionalEmitter(toks[0])
    if "count" in toks:
        return GroupEmitter([toks[0]] * int(toks.count))
    if "minCount" in toks:
        mincount = int(toks.minCount)
        maxcount = int(toks.maxCount)
        optcount = maxcount - mincount
        if optcount:
            opt = OptionalEmitter(toks[0])
            for i in range(1, optcount):
                opt = OptionalEmitter(GroupEmitter([toks[0], opt]))
            return GroupEmitter([toks[0]] * mincount + [opt])
        else:
            return [toks[0]] * mincount

def handle_literal(toks):
    lit = ""
    for t in toks:
        if t[0] == "\\":
            if t[1] == "t":
                lit += "\t"
            else:
                lit += t[1]
        else:
            lit += t
    return LiteralEmitter(lit)

def handle_macro(toks):
    macro_char = toks[0][1]
    if macro_char == "d":
        return CharacterRangeEmitter("0123456789")
    elif macro_char == "w":
        return CharacterRangeEmitter(srange("[A-Za-z0-9_]"))
    elif macro_char == "s":
        return LiteralEmitter(" ")
    else:
        raise ParseFatalException(
            "", 0, "unsupported macro character (" + macro_char + ")"
        )

def handle_sequence(toks):
    return GroupEmitter(toks[0])

def handle_dot():
    return CharacterRangeEmitter(printables)

def handle_alternative(toks):
    return AlternativeEmitter(toks[0])

_parser = None

def parser():
    global _parser
    if _parser is None:
        ParserElement.set_default_whitespace_chars("")
        lbrack, rbrack, lbrace, rbrace, lparen, rparen, colon, qmark = Literal.using_each(
            "[]{}():?"
        )

re_macro = Combine("\\" + one_of("d w s"))
        escaped_char = ~re_macro + Combine("\\" + one_of(list(printables)))
        re_literal_char = (
            "".join(c for c in printables if c not in r"\[]{}().*?+|") + " \t"
        )

re_range = Combine(lbrack + SkipTo(rbrack, ignore=escaped_char) + rbrack) # type: ignore 
        re_literal = escaped_char | one_of(list(re_literal_char))
        re_non_capture_group = Suppress("?:")
        re_dot = Literal(".")
        repetition = (
            (lbrace + Word(nums)("count") + rbrace)
            | (lbrace + Word(nums)("minCount") + "," + Word(nums)("maxCount") + rbrace)
            | one_of(list("*+?"))
        )

re_range.add_parse_action(handle_range)
        re_literal.add_parse_action(handle_literal)
        re_macro.add_parse_action(handle_macro)
        re_dot.add_parse_action(handle_dot)

re_term = re_literal | re_range | re_macro | re_dot | re_non_capture_group
        re_expr = infix_notation(
            re_term,
            [
                (repetition, 1, OpAssoc.LEFT, handle_repetition),
                (Empty(), 2, OpAssoc.LEFT, handle_sequence),
                (Suppress("|"), 2, OpAssoc.LEFT, handle_alternative),
            ],
        )
        _parser = re_expr

return _parser

def count(gen):
    """Simple function to count the number of elements returned by a generator."""
    return sum(1 for _ in gen)

def invert(regex):
    r"""
    Call this routine as a generator to return all the strings that
    match the input regular expression.
        for s in invert(r"[A-Z]{3}\d{3}"):
            print s
    """
    invre = GroupEmitter(parser().parseString(regex)).make_generator()
    return invre()

def main():
    tests = r"""
    [A-EA]
    [A-D]*
    [A-D]{3}
    X[A-C]{3}Y
    X[A-C]{3}\(
    X\d
    foobar\d\d
    foobar{2}
    foobar{2,9}
    fooba[rz]{2}
    (foobar){2}
    ([01]\d)|(2[0-5])
    (?:[01]\d)|(2[0-5])
    ([01]\d\d)|(2[0-4]\d)|(25[0-5])
    [A-C]{1,2}
    [A-C]{0,3}
    [A-C]\s[A-C]\s[A-C]
    [A-C]\s?[A-C][A-C]
    [A-C]\s([A-C][A-C])
    [A-C]\s([A-C][A-C])?
    [A-C]{2}\d{2}
    @|TH[12]
    @(@|TH[12])?
    @(@|TH[12]|AL[12]|SP[123]|TB(1[0-9]?|20?|[3-9]))?
    @(@|TH[12]|AL[12]|SP[123]|TB(1[0-9]?|20?|[3-9])|OH(1[0-9]?|2[0-9]?|30?|[4-9]))?
    (([ECMP]|HA|AK)[SD]|HS)T
    [A-CV]{2}
    A[cglmrstu]|B[aehikr]?|C[adeflmorsu]?|D[bsy]|E[rsu]|F[emr]?|G[ade]|H[efgos]?|I[nr]?|Kr?|L[airu]|M[dgnot]|N[abdeiop]?|Os?|P[abdmortu]?|R[abefghnu]|S[bcegimnr]?|T[abcehilm]|Uu[bhopqst]|U|V|W|Xe|Yb?|Z[nr]
    (a|b)|(x|y)
    (a|b) (x|y)
    [ABCDEFG](?:#|##|b|bb)?(?:maj|min|m|sus|aug|dim)?[0-9]?(?:/[ABCDEFG](?:#|##|b|bb)?)?
    (Fri|Mon|S(atur|un)|T(hur|ue)s|Wednes)day
    A(pril|ugust)|((Dec|Nov|Sept)em|Octo)ber|(Febr|Jan)uary|Ju(ly|ne)|Ma(rch|y)
    """.splitlines()

for t in tests:
        t = t.strip()
        if not t:
            continue
        print("-" * 50)
        print(t)
        try:
            num = count(invert(t))
            print(num)
            maxprint = 30
            for s in invert(t):
                print(s)
                maxprint -= 1
                if not maxprint:
                    break
        except ParseFatalException as pfe:
            print(pfe.msg)
            print("")
            continue
        print("")

if __name__ == "__main__":
    main()

${this.title}

Code Editor : inv_regex.py