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� FHSc @ s� d Z d d l Z d d l Z d d l Z d d l Z d d l Z i e d 6e d 6e d 6e d 6e d 6e d 6e d 6Z i e d 6Z d Z d Z d Z d Z d Z d Z d Z d e j j f d � � YZ d e f d � � YZ d e f d � � YZ d S( s Tokenize DNS master file formati����Nt s s t ;t (t )t "i i i i i i i t UngetBufferFullc B s e Z d Z RS( sR Raised when an attempt is made to unget a token when the unget buffer is full.( t __name__t __module__t __doc__( ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyR , s t Tokenc B s� e Z d Z d e d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z RS( s� A DNS master file format token. @ivar ttype: The token type @type ttype: int @ivar value: The token value @type value: string @ivar has_escape: Does the token value contain escapes? @type has_escape: bool t c C s | | _ | | _ | | _ d S( s Initialize a token instance. @param ttype: The token type @type ttype: int @param value: The token value @type value: string @param has_escape: Does the token value contain escapes? @type has_escape: bool N( t ttypet valuet has_escape( t selfR R R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt __init__< s c C s | j t k S( N( R t EOF( R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt is_eofJ s c C s | j t k S( N( R t EOL( R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt is_eolM s c C s | j t k S( N( R t WHITESPACE( R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt is_whitespaceP s c C s | j t k S( N( R t IDENTIFIER( R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt is_identifierS s c C s | j t k S( N( R t QUOTED_STRING( R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt is_quoted_stringV s c C s | j t k S( N( R t COMMENT( R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt is_commentY s c C s | j t k S( N( R t DELIMITER( R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt is_delimiter\ s c C s | j t k p | j t k S( N( R R R ( R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt is_eol_or_eof_ s c C s5 t | t � s t S| j | j k o4 | j | j k S( N( t isinstanceR t FalseR R ( R t other( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt __eq__b s c C s5 t | t � s t S| j | j k p4 | j | j k S( N( R R t TrueR R ( R R! ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt __ne__h s c C s d | j | j f S( Ns %d "%s"( R R ( R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt __str__n s c C su | j s | Sd } t | j � } d } x:| | k rd| j | } | d 7} | d k rW| | k ru t j j � n | j | } | d 7} | j � rW| | k r� t j j � n | j | } | d 7} | | k r� t j j � n | j | } | d 7} | j � o| j � s#t j j � n t t | � d t | � d t | � � } qWn | | 7} q+ Wt | j | � S( NR i i s \id i ( R t lenR t dnst exceptiont UnexpectedEndt isdigitt SyntaxErrort chrt intR R ( R t unescapedt lt it ct c2t c3( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt unescapeq s6 4c C s d S( Ni ( ( R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt __len__� s c C s t | j | j f � S( N( t iterR R ( R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt __iter__� s c C s0 | d k r | j S| d k r& | j St � d S( Ni i ( R R t IndexError( R R0 ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt __getitem__� s ( R R R R R R R R R R R R R R" R$ R% R4 R5 R7 R9 ( ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyR 1 s" t Tokenizerc B s� e Z d Z e j d d � Z d � Z d � Z d � Z d � Z e e d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d d � Z d d � Z d d � Z d � Z d � Z RS( s� A DNS master file format tokenizer. A token is a (type, value) tuple, where I{type} is an int, and I{value} is a string. The valid types are EOF, EOL, WHITESPACE, IDENTIFIER, QUOTED_STRING, COMMENT, and DELIMITER. @ivar file: The file to tokenize @type file: file @ivar ungotten_char: The most recently ungotten character, or None. @type ungotten_char: string @ivar ungotten_token: The most recently ungotten token, or None. @type ungotten_token: (int, string) token tuple @ivar multiline: The current multiline level. This value is increased by one every time a '(' delimiter is read, and decreased by one every time a ')' delimiter is read. @type multiline: int @ivar quoting: This variable is true if the tokenizer is currently reading a quoted string. @type quoting: bool @ivar eof: This variable is true if the tokenizer has encountered EOF. @type eof: bool @ivar delimiters: The current delimiter dictionary. @type delimiters: dict @ivar line_number: The current line number @type line_number: int @ivar filename: A filename that will be returned by the L{where} method. @type filename: string c C s� t | t � r6 t j | � } | d k rc d } qc n- | d k rc | t j k rZ d } qc d } n | | _ d | _ d | _ d | _ t | _ t | _ t | _ d | _ | | _ d S( s� Initialize a tokenizer instance. @param f: The file to tokenize. The default is sys.stdin. This parameter may also be a string, in which case the tokenizer will take its input from the contents of the string. @type f: file or string @param filename: the name of the filename that the L{where} method will return. @type filename: string s <string>s <stdin>s <file>i i N( R t strt cStringIOt StringIOt Nonet syst stdint filet ungotten_chart ungotten_tokent multilineR t quotingt eoft _DELIMITERSt delimiterst line_numbert filename( R t fRJ ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyR � s" c C s� | j d k rl | j r! d } q~ | j j d � } | d k rK t | _ q~ | d k r~ | j d 7_ q~ n | j } d | _ | S( s< Read a character from input. @rtype: string R i s N( RB R> RF RA t readR# RI ( R R1 ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt _get_char� s c C s | j | j f S( s� Return the current location in the input. @rtype: (string, int) tuple. The first item is the filename of the input, the second is the current line number. ( RJ RI ( R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt where� s c C s% | j d k r t � n | | _ d S( sE Unget a character. The unget buffer for characters is only one character large; it is an error to try to unget a character when the unget buffer is not empty. @param c: the character to unget @type c: string @raises UngetBufferFull: there is already an ungotten char N( RB R> R ( R R1 ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt _unget_char� s c C so d } xb t rj | j � } | d k r] | d k r] | d k sI | j r] | j | � | Sn | d 7} q Wd S( s( Consume input until a non-whitespace character is encountered. The non-whitespace character is then ungotten, and the number of whitespace characters consumed is returned. If the tokenizer is in multiline mode, then newlines are whitespace. @rtype: int i R s s i N( R# RM RD RO ( R t skippedR1 ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt skip_whitespace s c C s� | j d k rZ | j } d | _ | j � r: | rW | SqZ | j � rS | rW | SqZ | Sn | j � } | r� | d k r� t t d � Sd } t } t } x�t rA| j � } | d k s� | | j k r�| d k r� | j r� t j j � n | d k r�| t k r�| d k r.| j d 7_ | j � q� q�| d k rw| j d k sXt j j � n | j d 8_ | j � q� q�| d k r�| j s�t | _ t | _ t } q� q�t | _ t | _ | j � q� q�| d k r�t t d � S| d k r�x6 | j � } | d k s| d k r Pn | | 7} q�W| rJ| j | � t t | � S| d k r~| j rtt j j d � � n t t � S| j r�| j � d } q� q�t t d � Sq�| } t } n | j | � Png| j r�| d k r�| j � } | d k r t j j � n | j � r�| j � } | d k r<t j j � n | j � } | d k rct j j � n | j � ox| j � s�t j j � n t t | � d t | � d t | � � } q�q4| d k r4t j j d � � q4nR | d k r4| | 7} t } | j � } | d k s"| d k r4t j j � q4n | | 7} q� W| d k r�| t k r�| j rxt j j d � � n t } n t | | | � S( s Get the next token. @param want_leading: If True, return a WHITESPACE token if the first character read is whitespace. The default is False. @type want_leading: bool @param want_comment: If True, return a COMMENT token if the first token read is a comment. The default is False. @type want_comment: bool @rtype: Token object @raises dns.exception.UnexpectedEnd: input ended prematurely @raises dns.exception.SyntaxError: input was badly formed i R R R i R R s R s unbalanced parenthesess \id i s newline in quoted stringN( RC R> R R RQ R R R R R# RM RH RE R' R( R) R RD R+ t _QUOTING_DELIMITERSRG R RO R R R R* R, R- ( R t want_leadingt want_commentt tokenRP R R R1 R2 R3 ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt get s� 4 c C s% | j d k r t � n | | _ d S( s@ Unget a token. The unget buffer for tokens is only one token large; it is an error to try to unget a token when the unget buffer is not empty. @param token: the token to unget @type token: Token object @raises UngetBufferFull: there is already an ungotten token N( RC R> R ( R RU ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt unget� s c C s% | j � } | j � r! t � n | S( sL Return the next item in an iteration. @rtype: (int, string) ( RV R t StopIteration( R RU ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt next� s c C s | S( N( ( R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyR7 � s c C sd | j � j � } | j � s3 t j j d � � n | j j � sW t j j d � � n t | j � S( s| Read the next token and interpret it as an integer. @raises dns.exception.SyntaxError: @rtype: int s expecting an identifiers expecting an integer( RV R4 R R' R( R+ R R* R- ( R RU ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt get_int� s c C sA | j � } | d k s$ | d k r= t j j d | � � n | S( s� Read the next token and interpret it as an 8-bit unsigned integer. @raises dns.exception.SyntaxError: @rtype: int i i� s# %d is not an unsigned 8-bit integer( RZ R' R( R+ ( R R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt get_uint8� s c C sA | j � } | d k s$ | d k r= t j j d | � � n | S( s� Read the next token and interpret it as a 16-bit unsigned integer. @raises dns.exception.SyntaxError: @rtype: int i i�� s$ %d is not an unsigned 16-bit integer( RZ R' R( R+ ( R R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt get_uint16� s c C s� | j � j � } | j � s3 t j j d � � n | j j � sW t j j d � � n t | j � } | d k s~ | d k r� t j j d | � � n | S( s� Read the next token and interpret it as a 32-bit unsigned integer. @raises dns.exception.SyntaxError: @rtype: int s expecting an identifiers expecting an integeri l s$ %d is not an unsigned 32-bit integer( RV R4 R R' R( R+ R R* t long( R RU R ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt get_uint32� s c C sF | j � j � } | j � p' | j � s? t j j d � � n | j S( s} Read the next token and interpret it as a string. @raises dns.exception.SyntaxError: @rtype: string s expecting a string( RV R4 R R R' R( R+ R ( R t originRU ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt get_string� s c C s: | j � j � } | j � s3 t j j d � � n | j S( s� Read the next token and raise an exception if it is not an identifier. @raises dns.exception.SyntaxError: @rtype: string s expecting an identifier( RV R4 R R' R( R+ R ( R R_ RU ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt get_identifier� s c C sC | j � } | j � s- t j j d � � n t j j | j | � S( s� Read the next token and interpret it as a DNS name. @raises dns.exception.SyntaxError: @rtype: dns.name.Name objects expecting an identifier( RV R R' R( R+ t namet from_textR ( R R_ RU ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt get_name s c C sD | j � } | j � s= t j j d | j | j f � � n | j S( s� Read the next token and raise an exception if it isn't EOL or EOF. @raises dns.exception.SyntaxError: @rtype: string s expected EOL or EOF, got %d "%s"( RV R R' R( R+ R R ( R RU ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt get_eol s %c C sF | j � j � } | j � s3 t j j d � � n t j j | j � S( Ns expecting an identifier( RV R4 R R' R( R+ t ttlRc R ( R RU ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt get_ttl s N( R R R R? R@ R> R RM RN RO RQ R RV RW RY R7 RZ R[ R\ R^ R` Ra Rd Re Rg ( ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyR: � s& z ( R R< R? t dns.exceptionR' t dns.namet dns.ttlR# RG RR R R R R R R R R( t DNSExceptionR t objectR R: ( ( ( s3 /usr/lib64/python2.7/site-packages/dns/tokenizer.pyt <module> s0 m