U e5d?R @sdZdZdZddlZddlZddlmZmZddlTddl m Z d d e e Dd d d gZ [ ze Wnek r~eZ YnXddZddZddZddZdZdZeedeeeZdZdZdZdZeddZeeeeeZdZed d!eeZd"eZeeeZ ed#e d$Z!ee!e eZ"d%Z#d&Z$d'Z%d(Z&d)Z'ee'd*e'd+Z(ee'd,e'd-Z)ed.d/d0d1d2d3d4d5d6 Z*d7Z+ed8d9d:Z,ee*e+e,Z-ee"e-e)eZ.ee.Z/ee'd;eddZ0edee(Z1eee1e"e-e0eZ2e3ej4e/e2e%e&f\Z5Z6Z7Z8ed?d@dAdBed?d@dCdDBdEdFdGdHdIdJhBZ9e4e#e4e$e7e8dKdLdMe9DdNdMe9DdOdMe9DZ:d*d+hdPdQe9DBdRdQe9DBZ;dhdSdQe9DBdTdQe9DBZZ?GdXdYdYe>Z@dZd[ZAeAfd\d ZBd]d^ZCGd_d`d`ZDe4daejEZFe4dbejEZGdcddZHdedfZIdgd ZJdhd ZKeLdikrddlMZMeNeMjOdkreBePeMjOdjQn eBeMjRjQdS)jaTokenization help for Python programs. generate_tokens(readline) is a generator that breaks a stream of text into Python tokens. It accepts a readline-like method which is called repeatedly to get the next line of input (or "" for EOF). It generates 5-tuples with these members: the token type (see token.py) the token (a string) the starting (row, column) indices of the token (a 2-tuple of ints) the ending (row, column) indices of the token (a 2-tuple of ints) the original line (string) It is designed to match the working of the Python tokenizer exactly, except that it produces COMMENT tokens for comments and gives type OP for all operators Older entry points tokenize_loop(readline, tokeneater) tokenize(readline, tokeneater=printtoken) are the same, except instead of generating tokens, tokeneater is a callback function to which the 5 fields described above are passed as 5 arguments, each time a new token is found.zKa-Ping Yee z@GvR, ESR, Tim Peters, Thomas Wouters, Fred Drake, Skip MontanaroN)BOM_UTF8lookup)*)tokencCsg|]}|ddkr|qS)r_).0xrr./usr/lib64/python3.8/lib2to3/pgen2/tokenize.py %s r tokenizegenerate_tokens untokenizecGsdd|dS)N(|))joinchoicesrrr group0rcGs t|dS)Nrrrrrr any1rrcGs t|dS)N?rrrrr maybe2rrcstfddDS)Nc3s4|],}dD]}||kr||VqqdS))N)casefold)r r ylrr 4s  z _combinations..)setrrrr _combinations3s r#z[ \f\t]*z #[^\r\n]*z\\\r?\nz\w+z0[bB]_?[01]+(?:_[01]+)*z(0[xX]_?[\da-fA-F]+(?:_[\da-fA-F]+)*[lL]?z0[oO]?_?[0-7]+(?:_[0-7]+)*[lL]?z[1-9]\d*(?:_\d+)*[lL]?z0[lL]?z[eE][-+]?\d+(?:_\d+)*z\d+(?:_\d+)*\.(?:\d+(?:_\d+)*)?z\.\d+(?:_\d+)*z \d+(?:_\d+)*z\d+(?:_\d+)*[jJ]z[jJ]z[^'\\]*(?:\\.[^'\\]*)*'z[^"\\]*(?:\\.[^"\\]*)*"z%[^'\\]*(?:(?:\\.|'(?!''))[^'\\]*)*'''z%[^"\\]*(?:(?:\\.|"(?!""))[^"\\]*)*"""z'(?:[uUrRbBfF]|[rR][fFbB]|[fFbBuU][rR])?'''"""z'[^\n'\\]*(?:\\.[^\n'\\]*)*'z"[^\n"\\]*(?:\\.[^\n"\\]*)*"z\*\*=?z>>=?z<<=?z<>z!=z//=?z->z[+\-*/%&@|^=<>]=?~z[][(){}]z\r?\nz:=z[:;.,`@]z'[^\n'\\]*(?:\\.[^\n'\\]*)*'z"[^\n"\\]*(?:\\.[^\n"\\]*)*"rRfFbBuUZurZuRZUrZUR)r'r(r$r%cCsi|]}|dtqSr$) single3progr prefixrrr ysr5cCsi|]}|dtqSr%) double3progr3rrr r5zscCsi|] }|dqSNrr3rrr r5{scCsh|]}|dqSr1rr3rrr sr9cCsh|]}|dqSr6rr3rrr r9scCsh|]}|dqS)r'rr3rrr r9scCsh|]}|dqS)r(rr3rrr r9sc@s eZdZdS) TokenErrorN__name__ __module__ __qualname__rrrr r;sr;c@s eZdZdS)StopTokenizingNr<rrrr r@sr@c Cs4|\}}|\}}td||||t|t|fdS)Nz%d,%d-%d,%d: %s %s)printtok_namerepr) typerZxxx_todo_changemeZxxx_todo_changeme1lineZsrowZscolZerowZecolrrr printtokens rFcCs(zt||Wntk r"YnXdS)a: The tokenize() function accepts two parameters: one representing the input stream, and one providing an output mechanism for tokenize(). The first parameter, readline, must be a callable object which provides the same interface as the readline() method of built-in file objects. Each call to the function should return one line of input as a string. The second parameter, tokeneater, must also be a callable object. It is called once for each token, with five arguments, corresponding to the tuples generated by generate_tokens(). N) tokenize_loopr@)readline tokeneaterrrr r s cCst|D] }||qdSr8)r)rHrIZ token_inforrr rGs rGc@s,eZdZddZddZddZddZd S) UntokenizercCsg|_d|_d|_dS)Nrr)tokensprev_rowprev_col)selfrrr __init__szUntokenizer.__init__cCs*|\}}||j}|r&|jd|dS)N )rMrKappend)rNstartrowcol col_offsetrrr add_whitespaces zUntokenizer.add_whitespacecCs|D]p}t|dkr$|||qv|\}}}}}|||j||\|_|_|ttfkr|jd7_d|_qd |jS)Nrrr) lencompatrVrKrQrLrMNEWLINENLr)rNiterablettok_typerrRendrErrr rs      zUntokenizer.untokenizec Csd}g}|jj}|\}}|ttfkr,|d7}|ttfkr|t kr| q@n*|ttfkrd}n|r|r||dd}||q@dS)NFrPTrW) rKrQNAMENUMBERrZr[ASYNCAWAITINDENTDEDENTpop) rNrr\ startlineindents toks_appendtoknumtokvaltokrrr rYs0     zUntokenizer.compatN)r=r>r?rOrVrrYrrrr rJsrJz&^[ \t\f]*#.*?coding[:=][ \t]*([-\w.]+)s^[ \t\f]*(?:[#\r\n]|$)cCsH|dddd}|dks*|dr.dS|dks@|drDd S|S) z(Imitates get_normal_name in tokenizer.c.N r-utf-8zutf-8-)zlatin-1 iso-8859-1z iso-latin-1)zlatin-1-z iso-8859-1-z iso-latin-1-rq)lowerreplace startswith)orig_encencrrr _get_normal_namesrwcsdd}d}fdd}fdd}|}|trHd|d d}d }|sT|gfS||}|rj||gfSt|s~||gfS|}|s||gfS||}|r|||gfS|||gfS) a The detect_encoding() function is used to detect the encoding that should be used to decode a Python source file. It requires one argument, readline, in the same way as the tokenize() generator. It will call readline a maximum of twice, and return the encoding used (as a string) and a list of any lines (left as bytes) it has read in. It detects the encoding from the presence of a utf-8 bom or an encoding cookie as specified in pep-0263. If both a bom and a cookie are present, but disagree, a SyntaxError will be raised. If the encoding cookie is an invalid charset, raise a SyntaxError. Note that if a utf-8 bom is found, 'utf-8-sig' is returned. If no encoding is specified, then the default of 'utf-8' will be returned. FNrpcs(zWStk r"tYSXdSr8) StopIterationbytesr)rHrr read_or_stopsz%detect_encoding..read_or_stopcsz|d}Wntk r$YdSXt|}|s8dSt|d}z t|}Wn tk rrtd|YnXr|j dkrtd|d7}|S)Nasciirzunknown encoding: rpzencoding problem: utf-8z-sig) decodeUnicodeDecodeError cookie_rematchrwrr LookupError SyntaxErrorname)rE line_stringrencodingcodec) bom_foundrr find_cookie s"   z$detect_encoding..find_cookieTz utf-8-sig)rtrblank_rer)rHrdefaultrzrfirstsecondr)rrHr detect_encodings0         rcCst}||S)aTransform tokens back into Python source code. Each element returned by the iterable must be a token sequence with at least two elements, a token number and token value. If only two tokens are passed, the resulting output is poor. Round-trip invariant for full input: Untokenized source will match input source exactly Round-trip invariant for limited input: # Output text will tokenize the back to the input t1 = [tok[:2] for tok in generate_tokens(f.readline)] newcode = untokenize(t1) readline = iter(newcode.splitlines(1)).next t2 = [tok[:2] for tokin generate_tokens(readline)] assert t1 == t2 )rJr)r\utrrr r:sccstd}}}d\}}d}dg}d}d} d} d} z |} Wntk rPd} YnX|d}dt| } }|r2| s|td||| }|r|d} }t|| d||||f|| fVd\}}d}nd|r| ddd kr| d dd krt|| ||t| f|fVd}d}q.n|| }|| }q.nB|dkr\|s\| sLqd}| |kr| | d krr|d}n8| | d kr|tdt}n| | dkrd}nq| d} qP| |krĐq|r|Vd}| | dkr| | dkrT| | dd}| t|}t ||| f|| t|f| fVt | |d||f|t| f| fVq.t t f| | dk| | d|| f|t| f| fVq.||dkr| |t | d| |df|| f| fV||dkr4||krt dd|| | f|dd}| r| |dkrd} d} d} td|| f|| f| fVq| rt| rt| |dkrtd} d} d} n| sptd|dfd}| |kr.t| | }|r|d\}}||f||f|}}} | ||| |}}|tjks|dkr|dkrt|||| fVq|dkrJt}|dkrt }n | r&d} |r6|Vd}||||| fVq|dkrx|rd|Vd}t |||| fVq|tkrt|}|| | }|r|d} | || }|r|Vd}t|||| f| fVn||f}| |d}| }q.q|tks$|ddtks$|ddtkr|ddkrx||f}t|p\t|dp\t|d}| |dd}}| }q.n |r|Vd}t|||| fVq|rr|dkr| r|dkrtnt|||| fVqtt|||| f}|dkr|s|}qt|dkrZ|rZ|dtkrZ|ddkrZd} |d} t|d|d|d|dfVd}|rj|Vd}|Vnz|dkr|r|Vd}t |||| f| fVd}nF|d kr|d}n|d!kr|d}|r|Vd}t|||| fVn(t| | || f|| df| fV| d} qtq.|r,|Vd}|ddD]}td|df|dfdfVq8td|df|dfdfVdS)"a4 The generate_tokens() generator requires one argument, readline, which must be a callable object which provides the same interface as the readline() method of built-in file objects. Each call to the function should return one line of input as a string. Alternately, readline can be a callable function terminating with StopIteration: readline = open(myfile).next # Example of alternate readline The generator produces 5-tuples with these members: the token type; the token string; a 2-tuple (srow, scol) of ints specifying the row and column where the token begins in the source; a 2-tuple (erow, ecol) of ints specifying the row and column where the token ends in the source; and the line on which the token was found. The line passed is the physical line. r)rrNFrrzEOF in multi-line stringz\ z\ rP  z# #z r`z3unindent does not match any outer indentation levelz zEOF in multi-line statement.TrWr )asyncawaitrdef\z([{z)]})rxrXr;rr_STRING ERRORTOKENtabsizerstripCOMMENTr[rQreIndentationErrorrf pseudoprogspanstringZdigitsrbrZ triple_quotedendprogs single_quoted isidentifierrcrdraOP ENDMARKER)rHlnumparenlev continuedcontstrneedcontcontlineriZstashedZ async_defZasync_def_indentZ async_def_nlrEposmaxstrstartendprogendmatchr_column comment_tokenZnl_pos pseudomatchrRsposeposrinitialnewlinermindentrrr rOs     *                                   __main__)S__doc__ __author__ __credits__rrecodecsrrZlib2to3.pgen2.tokenrrdir__all__ry NameErrorstrrrrr# WhitespaceCommentIgnoreName Binnumber Hexnumber Octnumber Decnumber IntnumberExponent PointfloatExpfloat Floatnumber ImagnumberNumberSingleDoubleSingle3Double3Z _litprefixTripleStringZOperatorZBracketSpecialFunny PlainTokenTokenContStr PseudoExtras PseudoTokenmapcompileZ tokenprogrr2r7Z _strprefixesrrrr Exceptionr;r@rFr rGrJASCIIr~rrwrrrr=sysrXargvopenrHstdinrrrr s                    8 Ib