Python pyparsing.Word() Examples

def countedArray( expr, intExpr=None ):
    """Helper to define a counted list of expressions.
       This helper defines a pattern of the form::
           integer expr expr expr...
       where the leading integer tells how many expr expressions follow.
       The matched tokens returns the array of expr tokens as a list - the leading count token is suppressed.
    """
    arrayExpr = Forward()
    def countFieldParseAction(s,l,t):
        n = t[0]
        arrayExpr << (n and Group(And([expr]*n)) or Group(empty))
        return []
    if intExpr is None:
        intExpr = Word(nums).setParseAction(lambda t:int(t[0]))
    else:
        intExpr = intExpr.copy()
    intExpr.setName("arrayLen")
    intExpr.addParseAction(countFieldParseAction, callDuringTry=True)
    return ( intExpr + arrayExpr ) 

def __str__( self ):
        try:
            return super(Word,self).__str__()
        except:
            pass


        if self.strRepr is None:

            def charsAsStr(s):
                if len(s)>4:
                    return s[:4]+"..."
                else:
                    return s

            if ( self.initCharsOrig != self.bodyCharsOrig ):
                self.strRepr = "W:(%s,%s)" % ( charsAsStr(self.initCharsOrig), charsAsStr(self.bodyCharsOrig) )
            else:
                self.strRepr = "W:(%s)" % charsAsStr(self.initCharsOrig)

        return self.strRepr 

def srange(s):
    r"""Helper to easily define string ranges for use in Word construction.  Borrows
       syntax from regexp '[]' string range definitions::
          srange("[0-9]")   -> "0123456789"
          srange("[a-z]")   -> "abcdefghijklmnopqrstuvwxyz"
          srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_"
       The input string must be enclosed in []'s, and the returned string is the expanded
       character set joined into a single string.
       The values enclosed in the []'s may be::
          a single character
          an escaped character with a leading backslash (such as \- or \])
          an escaped hex character with a leading '\x' (\x21, which is a '!' character) 
            (\0x## is also supported for backwards compatibility) 
          an escaped octal character with a leading '\0' (\041, which is a '!' character)
          a range of any of the above, separated by a dash ('a-z', etc.)
          any combination of the above ('aeiouy', 'a-zA-Z0-9_$', etc.)
    """
    _expanded = lambda p: p if not isinstance(p,ParseResults) else ''.join(unichr(c) for c in range(ord(p[0]),ord(p[1])+1))
    try:
        return "".join(_expanded(part) for part in _reBracketExpr.parseString(s).body)
    except:
        return "" 

def matchPreviousLiteral(expr):
    """Helper to define an expression that is indirectly defined from
       the tokens matched in a previous expression, that is, it looks
       for a 'repeat' of a previous expression.  For example::
           first = Word(nums)
           second = matchPreviousLiteral(first)
           matchExpr = first + ":" + second
       will match C{"1:1"}, but not C{"1:2"}.  Because this matches a
       previous literal, will also match the leading C{"1:1"} in C{"1:10"}.
       If this is not desired, use C{matchPreviousExpr}.
       Do *not* use with packrat parsing enabled.
    """
    rep = Forward()
    def copyTokenToRepeater(s,l,t):
        if t:
            if len(t) == 1:
                rep << t[0]
            else:
                # flatten t tokens
                tflat = _flatten(t.asList())
                rep << And( [ Literal(tt) for tt in tflat ] )
        else:
            rep << Empty()
    expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
    return rep 

def matchPreviousExpr(expr):
    """Helper to define an expression that is indirectly defined from
       the tokens matched in a previous expression, that is, it looks
       for a 'repeat' of a previous expression.  For example::
           first = Word(nums)
           second = matchPreviousExpr(first)
           matchExpr = first + ":" + second
       will match C{"1:1"}, but not C{"1:2"}.  Because this matches by
       expressions, will *not* match the leading C{"1:1"} in C{"1:10"};
       the expressions are evaluated first, and then compared, so
       C{"1"} is compared with C{"10"}.
       Do *not* use with packrat parsing enabled.
    """
    rep = Forward()
    e2 = expr.copy()
    rep <<= e2
    def copyTokenToRepeater(s,l,t):
        matchTokens = _flatten(t.asList())
        def mustMatchTheseTokens(s,l,t):
            theseTokens = _flatten(t.asList())
            if  theseTokens != matchTokens:
                raise ParseException("",0,"")
        rep.setParseAction( mustMatchTheseTokens, callDuringTry=True )
    expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
    return rep 

def srange(s):
    r"""Helper to easily define string ranges for use in Word construction.  Borrows
       syntax from regexp '[]' string range definitions::
          srange("[0-9]")   -> "0123456789"
          srange("[a-z]")   -> "abcdefghijklmnopqrstuvwxyz"
          srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_"
       The input string must be enclosed in []'s, and the returned string is the expanded
       character set joined into a single string.
       The values enclosed in the []'s may be::
          a single character
          an escaped character with a leading backslash (such as \- or \])
          an escaped hex character with a leading '\x' (\x21, which is a '!' character) 
            (\0x## is also supported for backwards compatibility) 
          an escaped octal character with a leading '\0' (\041, which is a '!' character)
          a range of any of the above, separated by a dash ('a-z', etc.)
          any combination of the above ('aeiouy', 'a-zA-Z0-9_$', etc.)
    """
    _expanded = lambda p: p if not isinstance(p,ParseResults) else ''.join(unichr(c) for c in range(ord(p[0]),ord(p[1])+1))
    try:
        return "".join(_expanded(part) for part in _reBracketExpr.parseString(s).body)
    except:
        return "" 

def srange(s):
    r"""Helper to easily define string ranges for use in Word construction.  Borrows
       syntax from regexp '[]' string range definitions::
          srange("[0-9]")   -> "0123456789"
          srange("[a-z]")   -> "abcdefghijklmnopqrstuvwxyz"
          srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_"
       The input string must be enclosed in []'s, and the returned string is the expanded
       character set joined into a single string.
       The values enclosed in the []'s may be::
          a single character
          an escaped character with a leading backslash (such as \- or \])
          an escaped hex character with a leading '\x' (\x21, which is a '!' character) 
            (\0x## is also supported for backwards compatibility) 
          an escaped octal character with a leading '\0' (\041, which is a '!' character)
          a range of any of the above, separated by a dash ('a-z', etc.)
          any combination of the above ('aeiouy', 'a-zA-Z0-9_$', etc.)
    """
    _expanded = lambda p: p if not isinstance(p,ParseResults) else ''.join(unichr(c) for c in range(ord(p[0]),ord(p[1])+1))
    try:
        return "".join(_expanded(part) for part in _reBracketExpr.parseString(s).body)
    except:
        return "" 

def matchPreviousLiteral(expr):
    """Helper to define an expression that is indirectly defined from
       the tokens matched in a previous expression, that is, it looks
       for a 'repeat' of a previous expression.  For example::
           first = Word(nums)
           second = matchPreviousLiteral(first)
           matchExpr = first + ":" + second
       will match C{"1:1"}, but not C{"1:2"}.  Because this matches a
       previous literal, will also match the leading C{"1:1"} in C{"1:10"}.
       If this is not desired, use C{matchPreviousExpr}.
       Do *not* use with packrat parsing enabled.
    """
    rep = Forward()
    def copyTokenToRepeater(s,l,t):
        if t:
            if len(t) == 1:
                rep << t[0]
            else:
                # flatten t tokens
                tflat = _flatten(t.asList())
                rep << And( [ Literal(tt) for tt in tflat ] )
        else:
            rep << Empty()
    expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
    return rep 

def countedArray( expr, intExpr=None ):
    """Helper to define a counted list of expressions.
       This helper defines a pattern of the form::
           integer expr expr expr...
       where the leading integer tells how many expr expressions follow.
       The matched tokens returns the array of expr tokens as a list - the leading count token is suppressed.
    """
    arrayExpr = Forward()
    def countFieldParseAction(s,l,t):
        n = t[0]
        arrayExpr << (n and Group(And([expr]*n)) or Group(empty))
        return []
    if intExpr is None:
        intExpr = Word(nums).setParseAction(lambda t:int(t[0]))
    else:
        intExpr = intExpr.copy()
    intExpr.setName("arrayLen")
    intExpr.addParseAction(countFieldParseAction, callDuringTry=True)
    return ( intExpr + arrayExpr ) 

def __str__( self ):
        try:
            return super(Word,self).__str__()
        except:
            pass


        if self.strRepr is None:

            def charsAsStr(s):
                if len(s)>4:
                    return s[:4]+"..."
                else:
                    return s

            if ( self.initCharsOrig != self.bodyCharsOrig ):
                self.strRepr = "W:(%s,%s)" % ( charsAsStr(self.initCharsOrig), charsAsStr(self.bodyCharsOrig) )
            else:
                self.strRepr = "W:(%s)" % charsAsStr(self.initCharsOrig)

        return self.strRepr 

def __str__( self ):
        try:
            return super(Word,self).__str__()
        except:
            pass


        if self.strRepr is None:

            def charsAsStr(s):
                if len(s)>4:
                    return s[:4]+"..."
                else:
                    return s

            if ( self.initCharsOrig != self.bodyCharsOrig ):
                self.strRepr = "W:(%s,%s)" % ( charsAsStr(self.initCharsOrig), charsAsStr(self.bodyCharsOrig) )
            else:
                self.strRepr = "W:(%s)" % charsAsStr(self.initCharsOrig)

        return self.strRepr 

def countedArray( expr, intExpr=None ):
    """Helper to define a counted list of expressions.
       This helper defines a pattern of the form::
           integer expr expr expr...
       where the leading integer tells how many expr expressions follow.
       The matched tokens returns the array of expr tokens as a list - the leading count token is suppressed.
    """
    arrayExpr = Forward()
    def countFieldParseAction(s,l,t):
        n = t[0]
        arrayExpr << (n and Group(And([expr]*n)) or Group(empty))
        return []
    if intExpr is None:
        intExpr = Word(nums).setParseAction(lambda t:int(t[0]))
    else:
        intExpr = intExpr.copy()
    intExpr.setName("arrayLen")
    intExpr.addParseAction(countFieldParseAction, callDuringTry=True)
    return ( intExpr + arrayExpr ).setName('(len) ' + _ustr(expr) + '...') 

def __str__( self ):
        try:
            return super(Word,self).__str__()
        except:
            pass


        if self.strRepr is None:

            def charsAsStr(s):
                if len(s)>4:
                    return s[:4]+"..."
                else:
                    return s

            if ( self.initCharsOrig != self.bodyCharsOrig ):
                self.strRepr = "W:(%s,%s)" % ( charsAsStr(self.initCharsOrig), charsAsStr(self.bodyCharsOrig) )
            else:
                self.strRepr = "W:(%s)" % charsAsStr(self.initCharsOrig)

        return self.strRepr 

def matchPreviousLiteral(expr):
    """Helper to define an expression that is indirectly defined from
       the tokens matched in a previous expression, that is, it looks
       for a 'repeat' of a previous expression.  For example::
           first = Word(nums)
           second = matchPreviousLiteral(first)
           matchExpr = first + ":" + second
       will match C{"1:1"}, but not C{"1:2"}.  Because this matches a
       previous literal, will also match the leading C{"1:1"} in C{"1:10"}.
       If this is not desired, use C{matchPreviousExpr}.
       Do *not* use with packrat parsing enabled.
    """
    rep = Forward()
    def copyTokenToRepeater(s,l,t):
        if t:
            if len(t) == 1:
                rep << t[0]
            else:
                # flatten t tokens
                tflat = _flatten(t.asList())
                rep << And( [ Literal(tt) for tt in tflat ] )
        else:
            rep << Empty()
    expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
    return rep 

def srange(s):
    r"""Helper to easily define string ranges for use in Word construction.  Borrows
       syntax from regexp '[]' string range definitions::
          srange("[0-9]")   -> "0123456789"
          srange("[a-z]")   -> "abcdefghijklmnopqrstuvwxyz"
          srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_"
       The input string must be enclosed in []'s, and the returned string is the expanded
       character set joined into a single string.
       The values enclosed in the []'s may be::
          a single character
          an escaped character with a leading backslash (such as \- or \])
          an escaped hex character with a leading '\x' (\x21, which is a '!' character) 
            (\0x## is also supported for backwards compatibility) 
          an escaped octal character with a leading '\0' (\041, which is a '!' character)
          a range of any of the above, separated by a dash ('a-z', etc.)
          any combination of the above ('aeiouy', 'a-zA-Z0-9_$', etc.)
    """
    _expanded = lambda p: p if not isinstance(p,ParseResults) else ''.join(unichr(c) for c in range(ord(p[0]),ord(p[1])+1))
    try:
        return "".join(_expanded(part) for part in _reBracketExpr.parseString(s).body)
    except:
        return "" 

def srange(s):
    r"""Helper to easily define string ranges for use in Word construction.  Borrows
       syntax from regexp '[]' string range definitions::
          srange("[0-9]")   -> "0123456789"
          srange("[a-z]")   -> "abcdefghijklmnopqrstuvwxyz"
          srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_"
       The input string must be enclosed in []'s, and the returned string is the expanded
       character set joined into a single string.
       The values enclosed in the []'s may be::
          a single character
          an escaped character with a leading backslash (such as \- or \])
          an escaped hex character with a leading '\x' (\x21, which is a '!' character) 
            (\0x## is also supported for backwards compatibility) 
          an escaped octal character with a leading '\0' (\041, which is a '!' character)
          a range of any of the above, separated by a dash ('a-z', etc.)
          any combination of the above ('aeiouy', 'a-zA-Z0-9_$', etc.)
    """
    _expanded = lambda p: p if not isinstance(p,ParseResults) else ''.join(unichr(c) for c in range(ord(p[0]),ord(p[1])+1))
    try:
        return "".join(_expanded(part) for part in _reBracketExpr.parseString(s).body)
    except:
        return "" 

def __str__( self ):
        try:
            return super(Word,self).__str__()
        except:
            pass


        if self.strRepr is None:

            def charsAsStr(s):
                if len(s)>4:
                    return s[:4]+"..."
                else:
                    return s

            if ( self.initCharsOrig != self.bodyCharsOrig ):
                self.strRepr = "W:(%s,%s)" % ( charsAsStr(self.initCharsOrig), charsAsStr(self.bodyCharsOrig) )
            else:
                self.strRepr = "W:(%s)" % charsAsStr(self.initCharsOrig)

        return self.strRepr 

def srange(s):
    r"""Helper to easily define string ranges for use in Word construction.  Borrows
       syntax from regexp '[]' string range definitions::
          srange("[0-9]")   -> "0123456789"
          srange("[a-z]")   -> "abcdefghijklmnopqrstuvwxyz"
          srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_"
       The input string must be enclosed in []'s, and the returned string is the expanded
       character set joined into a single string.
       The values enclosed in the []'s may be::
          a single character
          an escaped character with a leading backslash (such as \- or \])
          an escaped hex character with a leading '\x' (\x21, which is a '!' character) 
            (\0x## is also supported for backwards compatibility) 
          an escaped octal character with a leading '\0' (\041, which is a '!' character)
          a range of any of the above, separated by a dash ('a-z', etc.)
          any combination of the above ('aeiouy', 'a-zA-Z0-9_$', etc.)
    """
    _expanded = lambda p: p if not isinstance(p,ParseResults) else ''.join(unichr(c) for c in range(ord(p[0]),ord(p[1])+1))
    try:
        return "".join(_expanded(part) for part in _reBracketExpr.parseString(s).body)
    except:
        return "" 

def srange(s):
    r"""Helper to easily define string ranges for use in Word construction.  Borrows
       syntax from regexp '[]' string range definitions::
          srange("[0-9]")   -> "0123456789"
          srange("[a-z]")   -> "abcdefghijklmnopqrstuvwxyz"
          srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_"
       The input string must be enclosed in []'s, and the returned string is the expanded
       character set joined into a single string.
       The values enclosed in the []'s may be::
          a single character
          an escaped character with a leading backslash (such as \- or \])
          an escaped hex character with a leading '\x' (\x21, which is a '!' character) 
            (\0x## is also supported for backwards compatibility) 
          an escaped octal character with a leading '\0' (\041, which is a '!' character)
          a range of any of the above, separated by a dash ('a-z', etc.)
          any combination of the above ('aeiouy', 'a-zA-Z0-9_$', etc.)
    """
    try:
        return "".join(_expanded(part) for part in _reBracketExpr.parseString(s).body)
    except:
        return "" 

def matchPreviousLiteral(expr):
    """Helper to define an expression that is indirectly defined from
       the tokens matched in a previous expression, that is, it looks
       for a 'repeat' of a previous expression.  For example::
           first = Word(nums)
           second = matchPreviousLiteral(first)
           matchExpr = first + ":" + second
       will match C{"1:1"}, but not C{"1:2"}.  Because this matches a
       previous literal, will also match the leading C{"1:1"} in C{"1:10"}.
       If this is not desired, use C{matchPreviousExpr}.
       Do *not* use with packrat parsing enabled.
    """
    rep = Forward()
    def copyTokenToRepeater(s,l,t):
        if t:
            if len(t) == 1:
                rep << t[0]
            else:
                # flatten t tokens
                tflat = _flatten(t.asList())
                rep << And( [ Literal(tt) for tt in tflat ] )
        else:
            rep << Empty()
    expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
    return rep 

def countedArray( expr, intExpr=None ):
    """Helper to define a counted list of expressions.
       This helper defines a pattern of the form::
           integer expr expr expr...
       where the leading integer tells how many expr expressions follow.
       The matched tokens returns the array of expr tokens as a list - the leading count token is suppressed.
    """
    arrayExpr = Forward()
    def countFieldParseAction(s,l,t):
        n = t[0]
        arrayExpr << (n and Group(And([expr]*n)) or Group(empty))
        return []
    if intExpr is None:
        intExpr = Word(nums).setParseAction(lambda t:int(t[0]))
    else:
        intExpr = intExpr.copy()
    intExpr.setName("arrayLen")
    intExpr.addParseAction(countFieldParseAction, callDuringTry=True)
    return ( intExpr + arrayExpr ) 

def __str__( self ):
        try:
            return super(Word,self).__str__()
        except:
            pass


        if self.strRepr is None:

            def charsAsStr(s):
                if len(s)>4:
                    return s[:4]+"..."
                else:
                    return s

            if ( self.initCharsOrig != self.bodyCharsOrig ):
                self.strRepr = "W:(%s,%s)" % ( charsAsStr(self.initCharsOrig), charsAsStr(self.bodyCharsOrig) )
            else:
                self.strRepr = "W:(%s)" % charsAsStr(self.initCharsOrig)

        return self.strRepr 

def getLogLineBNF():
    global logLineBNF
    
    if logLineBNF is None:
        integer = Word( nums )
        ipAddress = delimitedList( integer, ".", combine=True )
        
        timeZoneOffset = Word("+-",nums)
        month = Word(string.uppercase, string.lowercase, exact=3)
        serverDateTime = Group( Suppress("[") + 
                                Combine( integer + "/" + month + "/" + integer +
                                        ":" + integer + ":" + integer + ":" + integer ) +
                                timeZoneOffset + 
                                Suppress("]") )
                         
        logLineBNF = ( ipAddress.setResultsName("ipAddr") + 
                       Suppress("-") +
                       ("-" | Word( alphas+nums+"@._" )).setResultsName("auth") +
                       serverDateTime.setResultsName("timestamp") + 
                       dblQuotedString.setResultsName("cmd").setParseAction(getCmdFields) +
                       (integer | "-").setResultsName("statusCode") + 
                       (integer | "-").setResultsName("numBytesSent")  + 
                       dblQuotedString.setResultsName("referrer").setParseAction(removeQuotes) +
                       dblQuotedString.setResultsName("clientSfw").setParseAction(removeQuotes) )
    return logLineBNF 

def __ifaceAttributes___storm_check(storm,dct):

    parse_level  = Word(alphas)        + Suppress('level ')            + restOfLine
    parse_action = Suppress('action ') + Word(alphas)
    parse_type   = Word(alphas)        + Suppress(Optional("include")) + Word(alphas)
    try:
        value = parse_level.parseString(storm).asList()
        if 'level' in dct:
            dct['level'].append(value)
        else:
            dct['level'] = [value]
        return dct
    except ParseException:
        pass
    try:
        return util.int_dict_parse(parse_action, storm, 'action', dct)
    except ParseException:
        pass
    try:
        return util.int_dict_parse(parse_type,   storm, 'type',   dct)
    except ParseException:
        pass 

def countedArray( expr, intExpr=None ):
    """Helper to define a counted list of expressions.
       This helper defines a pattern of the form::
           integer expr expr expr...
       where the leading integer tells how many expr expressions follow.
       The matched tokens returns the array of expr tokens as a list - the leading count token is suppressed.
    """
    arrayExpr = Forward()
    def countFieldParseAction(s,l,t):
        n = t[0]
        arrayExpr << (n and Group(And([expr]*n)) or Group(empty))
        return []
    if intExpr is None:
        intExpr = Word(nums).setParseAction(lambda t:int(t[0]))
    else:
        intExpr = intExpr.copy()
    intExpr.setName("arrayLen")
    intExpr.addParseAction(countFieldParseAction, callDuringTry=True)
    return ( intExpr + arrayExpr ).setName('(len) ' + _ustr(expr) + '...') 

def anything_beetween(opener_and_closer):
    """Builds a (pyparsing) parser for the content inside delimiters.

    Args:
    opener_and_closer: a string containing two elements: opener and closer

    Returns:
      A (pyparsing) parser for the content inside delimiters.
    """
    opener = pyparsing.Literal(opener_and_closer[0])
    closer = pyparsing.Literal(opener_and_closer[1])
    char_removal_mapping = dict.fromkeys(list(map(ord, opener_and_closer)))
    other_chars = str(string.printable).translate(char_removal_mapping)
    word_without_delimiters = pyparsing.Word(other_chars).setName(
        "other_chars")
    anything = pyparsing.Forward()
    delimited_block = opener + anything + closer
    # pylint: disable=expression-not-assigned
    anything << pyparsing.ZeroOrMore(
        word_without_delimiters.setName("word_without_delimiters")
        | delimited_block.setName("delimited_block")
    )

    # Combine all the parts into a single string.
    return pyparsing.Combine(anything) 

def __str__( self ):
        try:
            return super(Word,self).__str__()
        except:
            pass


        if self.strRepr is None:

            def charsAsStr(s):
                if len(s)>4:
                    return s[:4]+"..."
                else:
                    return s

            if ( self.initCharsOrig != self.bodyCharsOrig ):
                self.strRepr = "W:(%s,%s)" % ( charsAsStr(self.initCharsOrig), charsAsStr(self.bodyCharsOrig) )
            else:
                self.strRepr = "W:(%s)" % charsAsStr(self.initCharsOrig)

        return self.strRepr 

def _globalParse___username_attributes(line):
    username_dict = {}

    username       = (Word(printables))                                         ('user')
    privilege      = (Suppress('privilege') + Word(nums))                       ('priv_num')
    password_type  = (Suppress(MatchFirst(['secret', 'password'])) + Word(nums))('pass_type')

    parse_username = username + Optional(privilege) + password_type + Suppress(restOfLine)

    result = parse_username.parseString(line)

    username_dict[result.user] = {}
    username_dict[result.user]['password_type'] = result.pass_type.asList()[0]

    try:
        username_dict[result.user]['privilege'] = result.priv_num.asList()[0]
    except AttributeError:
        pass

    return username_dict 

def _globalParse___ssh_attributes(line):
    ssh_dict = {}

    ssh_option = (Word(alphas + '-'))('option')
    ssh_value  = (restOfLine)        ('value')

    result     = (ssh_option + White() + ssh_value).parseString(line)

    if   result.option == 'logging':
        ssh_dict['logging-events']         = 'yes'
    elif result.option == 'authentication-retries':
        ssh_dict['authentication_retries'] = result.value.split()[0]
    elif result.option == 'port':
        ssh_dict['port_rotary']            = result.value.split()[0]
    elif result.option == 'maxstartups':
        ssh_dict['maxstartups']            = result.value.split()[0]
    elif result.option == 'time-out':
        ssh_dict['time-out']               = result.value.split()[0]
    elif result.option == 'version':
        ssh_dict['version']                = result.value.split()[0]

    return ssh_dict 

def _parse_filter():
        op = pyparsing.oneOf('! & |')
        lpar  = pyparsing.Literal('(').suppress()
        rpar  = pyparsing.Literal(')').suppress()

        k = pyparsing.Word(pyparsing.alphanums)
        # NOTE: We may need to expand on this list, but as this is not a real
        # LDAP server we should be OK.
        # Value to contain:
        #   numbers, upper/lower case letters, astrisk, at symbol, minus, full
        #   stop, backslash or a space
        v = pyparsing.Word(pyparsing.alphanums + "-*@.\\ äöü")
        rel = pyparsing.oneOf("= ~= >= <=")

        expr = pyparsing.Forward()
        atom = pyparsing.Group(lpar + op + expr + rpar) \
                            | pyparsing.Combine(lpar + k + rel + v + rpar)
        expr << atom + pyparsing.ZeroOrMore( expr )

        return expr