Python Keyword.suppress方法代碼示例

# 需要導入模塊: from pyparsing import Keyword [as 別名]
# 或者: from pyparsing.Keyword import suppress [as 別名]
def _create_filter_parser():
    and_kw = Keyword('AND')
    or_kw = Keyword('OR')
    variable = Literal('?') + Word(alphanums + '_').leaveWhitespace()
    uri_term = NotAny(Literal('"')) + Word(printables, excludeChars='>*')
    uri_part = Keyword('*') ^ uri_term ^ variable
    literal_term = QuotedString(quoteChar='"', escChar='\\')
    triple = Group(Literal('<').suppress() + uri_part.setResultsName('subj')
                   + uri_part.setResultsName('pred')
                   + (Group(uri_part).setResultsName('obj')
                      ^ Group(literal_term).setResultsName('objlit'))
                   + Literal('>').suppress())
    expr = Forward()
    atom = (triple.setResultsName('triple')
            | Literal('(').suppress() + expr + Literal(')').suppress())
    and_group = Group(atom + ZeroOrMore(and_kw.suppress() + atom))
    or_group = Group(atom + ZeroOrMore(or_kw.suppress() + atom))
    expr << (and_group.setResultsName('and') ^ or_group.setResultsName('or'))
    return expr

# 需要導入模塊: from pyparsing import Keyword [as 別名]
# 或者: from pyparsing.Keyword import suppress [as 別名]
def SPICE_BNF():
    global bnf

    if not bnf:

        # punctuation
        colon = Literal(":").suppress()
        lbrace = Literal("{").suppress()
        rbrace = Literal("}").suppress()
        lbrack = Literal("[").suppress()
        rbrack = Literal("]").suppress()
        lparen = Literal("(").suppress()
        rparen = Literal(")").suppress()
        equals = Literal("=").suppress()
        comma = Literal(",").suppress()
        semi = Literal(";").suppress()

        # primitive types
        int8_ = Keyword("int8").setParseAction(replaceWith(ptypes.int8))
        uint8_ = Keyword("uint8").setParseAction(replaceWith(ptypes.uint8))
        int16_ = Keyword("int16").setParseAction(replaceWith(ptypes.int16))
        uint16_ = Keyword("uint16").setParseAction(replaceWith(ptypes.uint16))
        int32_ = Keyword("int32").setParseAction(replaceWith(ptypes.int32))
        uint32_ = Keyword("uint32").setParseAction(replaceWith(ptypes.uint32))
        int64_ = Keyword("int64").setParseAction(replaceWith(ptypes.int64))
        uint64_ = Keyword("uint64").setParseAction(replaceWith(ptypes.uint64))

        # keywords
        enum32_ = Keyword("enum32").setParseAction(replaceWith(32))
        enum16_ = Keyword("enum16").setParseAction(replaceWith(16))
        enum8_ = Keyword("enum8").setParseAction(replaceWith(8))
        flags32_ = Keyword("flags32").setParseAction(replaceWith(32))
        flags16_ = Keyword("flags16").setParseAction(replaceWith(16))
        flags8_ = Keyword("flags8").setParseAction(replaceWith(8))
        channel_ = Keyword("channel")
        server_ = Keyword("server")
        client_ = Keyword("client")
        protocol_ = Keyword("protocol")
        typedef_ = Keyword("typedef")
        struct_ = Keyword("struct")
        message_ = Keyword("message")
        image_size_ = Keyword("image_size")
        bytes_ = Keyword("bytes")
        cstring_ = Keyword("cstring")
        switch_ = Keyword("switch")
        default_ = Keyword("default")
        case_ = Keyword("case")

        identifier = Word(alphas, alphanums + "_")
        enumname = Word(alphanums + "_")

        integer = (
            (Combine(CaselessLiteral("0x") + Word(nums + "abcdefABCDEF")) | Word(nums + "+-", nums))
            .setName("int")
            .setParseAction(cvtInt)
        )

        typename = identifier.copy().setParseAction(lambda toks: ptypes.TypeRef(str(toks[0])))

        # This is just normal "types", i.e. not channels or messages
        typeSpec = Forward()

        attributeValue = integer ^ identifier
        attribute = Group(Combine("@" + identifier) + Optional(lparen + delimitedList(attributeValue) + rparen))
        attributes = Group(ZeroOrMore(attribute))
        arraySizeSpecImage = Group(image_size_ + lparen + integer + comma + identifier + comma + identifier + rparen)
        arraySizeSpecBytes = Group(bytes_ + lparen + identifier + comma + identifier + rparen)
        arraySizeSpecCString = Group(cstring_ + lparen + rparen)
        arraySizeSpec = (
            lbrack
            + Optional(
                identifier ^ integer ^ arraySizeSpecImage ^ arraySizeSpecBytes ^ arraySizeSpecCString, default=""
            )
            + rbrack
        )
        variableDef = Group(
            typeSpec
            + Optional("*", default=None)
            + identifier
            + Optional(arraySizeSpec, default=None)
            + attributes
            - semi
        ).setParseAction(parseVariableDef)

        switchCase = Group(
            Group(
                OneOrMore(
                    default_.setParseAction(replaceWith(None)) + colon
                    | Group(case_.suppress() + Optional("!", default="") + identifier) + colon
                )
            )
            + variableDef
        ).setParseAction(lambda toks: ptypes.SwitchCase(toks[0][0], toks[0][1]))
        switchBody = Group(
            switch_
            + lparen
            + delimitedList(identifier, delim=".", combine=True)
            + rparen
            + lbrace
            + Group(OneOrMore(switchCase))
#.........這裏部分代碼省略.........

# 需要導入模塊: from pyparsing import Keyword [as 別名]
# 或者: from pyparsing.Keyword import suppress [as 別名]
    tokens[1] = date_time
    del tokens[2]

TIMESTAMP = quote + POSITIVE_NUMBER + quote
TIMESTAMP.setParseAction(parseTimestamp)

UTC_FLAG = Dict(
    Group(
        (
            int_ + Keyword('inUtc') + equals + UINT_VALUE
        ).setParseAction(parseFlag)
    )
)

COMPOSED_DATE = (
    date.suppress() + lcurly +
    int_ + day.suppress() + equals + UINT_VALUE +
    int_ + month.suppress() + equals + UINT_VALUE +
    int_ + year.suppress() + equals + UINT_VALUE +
    rcurly + Optional(COMMENT)
)
COMPOSED_DATE.setParseAction(parseDate)

COMPOSED_TIME = (
    time.suppress() + lcurly +
    int_ + hour.suppress() + equals + UINT_VALUE +
    int_ + min_.suppress() + equals + UINT_VALUE +
    int_ + sec.suppress() + equals + UINT_VALUE +
    rcurly + Optional(COMMENT)
)
COMPOSED_TIME.setParseAction(parseTime)

# 需要導入模塊: from pyparsing import Keyword [as 別名]
# 或者: from pyparsing.Keyword import suppress [as 別名]
insert_kw = Keyword('insert', caseless=True)
into_kw = Keyword('into', caseless=True)


# define sql reserved words
reserved_words = (
    update_kw | volatile_kw | create_kw | table_kw
    | as_kw | from_kw | where_kw | join_kw | on_kw | left_kw
    | right_kw | cross_kw | outer_kw | on_kw | insert_kw | into_kw
)

ident = ~reserved_words + Word(alphas, alphanums + '_$.').setName('identifier')

function = (
    (Word(alphas) + '(' + Word(alphanums + '*_$.') + ')')
    + Optional(as_kw.suppress() + delimitedList(ident, '.', combine=True))
)

column_name = delimitedList(ident, '.', combine=True)
column_name_list = Group(delimitedList(column_name))

# To make it simple, enclode all expressions in parens.
expression = "(" + OneOrMore( Word(alphanums + '_-.') | Word('-+*')) + ")"

# column from the select statement with `as` keyword support.
# the quoted string handles cases like : SELECT 'CA' AS state
select_column = (
    ( delimitedList(ident, '.', combine=True).setResultsName('parsed_name') | quotedString | expression )
    + Optional(as_kw.suppress() + delimitedList(ident, '.', combine=True)).setResultsName('parsed_alias')
).setParseAction(_flat_alias)

# 需要導入模塊: from pyparsing import Keyword [as 別名]
# 或者: from pyparsing.Keyword import suppress [as 別名]
                lambda s, l, t: DropGraph(name=t.name))

describe_graph = (describe + graph).\
    setParseAction(lambda s, l, t: DescribeGraph())


def vi(s,l,t):
    return CreateVertexIndex(label=t.label,
                             name=t.index_name,
                             fields=t.fields,
                             type=t.type)


create_vertex_index = (create + index_type('type') + index + \
                        ident('index_name') +
                        on_ + vertex.suppress() + ident('label') +
                        lparen + delimitedList(ident, ",")('fields') + rparen).\
                       setParseAction(vi)


def cei(s, l, t):
    return CreateEdgeIndex(direction=t.direction.upper(),
                           name=t.name,
                           edge=t.edge,
                           vertex=t.vertex,
                           property=t.property)

create_edge_index = (create + direction("direction") + index +
                     ident('name') +
                     on_ + vertex + ident('vertex') +
                     on_ + edge + ident('edge') +