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tokenize.cpython-310.pyc
o bcR @ s d Z dZdZddlZddlZddlmZmZ ddlT ddl m Z d d e e D g d Z [ ze W n ey= eZ Y nw d d Zdd Zdd Zdd ZdZdZeede ee ZdZdZdZdZedd ZeeeeeZ d Z ed d ee Z d e Z ee e Z ed!e d" Z!ee!e e Z"d#Z#d$Z$d%Z%d&Z&d'Z'ee'd( e'd) Z(ee'd* e'd+ Z)ed,d-d.d/d0d1d2d3d4 Z*d5Z+ed6d7d8Z,ee*e+e,Z-ee"e-e)eZ.ee. Z/ee'd9 ed:d e'd; ed<d Z0edee(Z1eee1e"e-e0e Z2e3ej4e/e2e%e&f\Z5Z6Z7Z8ed=d>d?d@ed=d>dAdBB h dCB Z9e4e#e4e$e7e8dDdEdF e9D dGdF e9D dHdF e9D Z:d(d)hdIdJ e9D B dKdJ e9D B Z;d:d<hdLdJ e9D B dMdJ e9D B Z<dNZ=G dOdP dPe>Z?G dQdR dRe>Z@dSdT ZAeAfdUdVZBdWdX ZCG dYdZ dZZDe4d[ejEZFe4d\ejEZGd]d^ ZHd_d` ZIdadb ZJdcdd ZKeLdekrddlMZMeNeMjOdkreBePeMjOd jQ dS eBeMjRjQ dS dS )fa Tokenization 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 <ping@lfw.org>z@GvR, ESR, Tim Peters, Thomas Wouters, Fred Drake, Skip Montanaro N)BOM_UTF8lookup)* )tokenc C s g | ] }|d dkr|qS )r _ ).0xr r -/usr/lib/python3.10/lib2to3/pgen2/tokenize.py <listcomp>% s r )tokenizegenerate_tokens untokenizec G s dd | d S )N(|))joinchoicesr r r group0 r c G t | d S )Nr r r r r r any1 r c G r )N?r r r r r maybe2 r r c s t fdd D S )Nc 3 s6 | ]} d D ]}| | kr|| V qqdS )) N)casefold)r r ylr r <genexpr>4 s z _combinations.<locals>.<genexpr>)setr! r r! r _combinations3 s 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]?z 0[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"\\]*)*"rRfFbB> UuURUruRur)r) r* r& r' c C i | ]}| d t qS r& ) single3progr prefixr r r <dictcomp>y r< c C r7 r' ) double3progr: r r r r< z r= c C s i | ]}|d qS Nr r: r r r r< { r c C h | ]}| d qS r8 r r: r r r <setcomp> rB c C rA r> r r: r r r rB rC c C rA )r) r r: r r r rB rC c C rA )r* r r: r r r rB rC c @ e Zd ZdS ) TokenErrorN__name__ __module__ __qualname__r r r r rF r rF c @ rE )StopTokenizingNrG r r r r rK r rK c C s4 |\}}|\}}t d||||t| t|f d S )Nz%d,%d-%d,%d: %s %s)printtok_namerepr) typer xxx_todo_changemexxx_todo_changeme1linesrowscolerowecolr r r printtoken s rW c C s& zt | | W dS ty Y dS w )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_looprK )readline tokeneaterr r r r s r c C s t | D ]}|| qd S r@ )r )rY rZ token_infor r r rX s rX c @ s, e Zd Zdd Zdd Zdd Zdd Zd S ) Untokenizerc C s g | _ d| _d| _d S )Nr r )tokensprev_rowprev_col)selfr r r __init__ s zUntokenizer.__init__c C s< |\}}|| j ks J || j }|r | jd| d S d S )N )r^ r_ r] append)r` startrowcol col_offsetr r r add_whitespace s zUntokenizer.add_whitespacec C s |D ]8}t |dkr| || n)|\}}}}}| | | j| |\| _| _|ttfv r:| jd7 _d| _qd | jS )N r r r ) lencompatrh r] rc r^ r_ NEWLINENLr )r` iterablettok_typer rd endrR r r r r s zUntokenizer.untokenizec C s d}g }| j j}|\}}|ttfv r|d7 }|ttfv r d}|D ]B}|d d \}}|ttttfv r6|d7 }|tkr@|| q |t krI| q |ttfv rRd}n |r^|r^||d d}|| q d S )NFrb Tri ) r] rc NAMENUMBERrl rm ASYNCAWAITINDENTDEDENTpop) r` r rn startlineindents toks_appendtoknumtokvaltokr r r rk s2 zUntokenizer.compatN)rH rI rJ ra rh r rk r r r r r\ s r\ z&^[ \t\f]*#.*?coding[:=][ \t]*([-\w.]+)s ^[ \t\f]*(?:[#\r\n]|$)c C sH | dd dd}|dks|drdS |dv s |dr"d 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-r )lowerreplace startswith)orig_encencr r r _get_normal_name s r c s d d}d}fdd} fdd}| }| tr$d |d d }d }|s*|g fS ||}|r5||gfS t|s?||gfS | }|sI||gfS ||}|rU|||gfS |||gfS ) a The detect_encoding() function is used to detect the encoding that should be used to decode a Python source file. It requires one argument, readline, in the same way as the tokenize() generator. It will call readline a maximum of twice, and return the encoding used (as a string) and a list of any lines (left as bytes) it has read in. It detects the encoding from the presence of a utf-8 bom or an encoding cookie as specified in pep-0263. If both a bom and a cookie are present, but disagree, a SyntaxError will be raised. If the encoding cookie is an invalid charset, raise a SyntaxError. Note that if a utf-8 bom is found, 'utf-8-sig' is returned. If no encoding is specified, then the default of 'utf-8' will be returned. FNr c s" z W S t y t Y S w r@ ) StopIterationbytesr )rY r r read_or_stop s z%detect_encoding.<locals>.read_or_stopc s z| d}W n ty Y d S w t|}|sd S t|d}zt|}W n ty5 td| w rE|j dkrAtd|d7 }|S )Nasciir zunknown encoding: r zencoding problem: utf-8z-sig) decodeUnicodeDecodeError cookie_rematchr r r LookupError SyntaxErrorname)rR line_stringr encodingcodec) bom_foundr r find_cookie s& z$detect_encoding.<locals>.find_cookieT z utf-8-sig)r r blank_rer )rY r defaultr r firstsecondr )r rY r detect_encoding s0 r c C s t }|| S )a Transform 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 )r\ r )rn utr r r r : s r c c s d } }}d\}}d}dg}d}d} d} d} z| } W n t y) d} Y nw |d }dt| } }|r| s>td||| }|rf|d } }t|| d| |||f|| fV d\}}d}nN|r| dd d kr| d d d krt|| ||t| f|fV d}d}q|| }|| }q|dkr|s| snd}| |k r| | d kr|d }n| | d kr|t d t }n | | dkrd}nn| d } | |k s| |krؐn|r|V d}| | dv r:| | dkr | | d d}| t| }t ||| f|| t| f| fV t | |d ||f|t| f| fV nt t f| | dk | | d || f|t| f| fV q||d krV| | t | d| |df|| f| fV ||d k r||vrkt dd|| | f|dd }| r| |d krd} d} d} td|| f|| f| fV ||d k s]| r| r| |d krd} d} d} n | std|dfd}| |k rt| | }|r}|d\}}||f||f|}}} | || | | }}|tjv s|dkr|dkrt|||| fV n|dv r t} |dkr t } n| rd} |r|V d}| |||| fV nq|dkr?|dr-J |r5|V d}t |||| fV nR|tv r~t| }|| | }|rp|d} | || }|rd|V d}t|||| f| fV n!||f}| |d }| }n|tv s|dd tv s|dd tv r|d dkr||f}t| pt|d pt|d }| |d d}}| }n|r|V d}t|||| fV n| r?|dv r| r|d krtnt|||| fV qt |||| f} |d kr |s | }q|d v r3|r3|d t kr3|d d kr3|d kr!d} |d } t|d |d |d |d fV d}|r;|V d}| V nR|d krY|rL|V d}t |||| f| fV d}n8|d!v rc|d }n |d"v rl|d }|rt|V d}t |||| fV nt| | || f|| d f| fV | d } | |k sq|r|V d}|dd D ]} td|df|dfdfV qt d|df|dfdfV dS )#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 )r r NFr r zEOF in multi-line stringz\ z\ rb z# #z rr z3unindent does not match any outer indentation levelz <tokenize>zEOF in multi-line statement.T ri r )asyncawaitr )defforr \z([{z)]}) r rj rF r rq STRING ERRORTOKENtabsizerstripCOMMENTrm rc rw IndentationErrorrx pseudoprogspanstringdigitsrt rl endswith triple_quotedendprogs single_quoted isidentifierru rv rs OP ENDMARKER) rY lnumparenlev continuedcontstrneedcontcontliner{ stashed async_defasync_def_indent async_def_nlrR posmaxstrstartendprogendmatchrq column comment_tokennl_pos pseudomatchrd sposeposr initialnewliner indentr r r r O s $ @ r __main__)S__doc__ __author__ __credits__r recodecsr r lib2to3.pgen2.tokenr r dir__all__r NameErrorstrr r r r% WhitespaceCommentIgnoreName Binnumber Hexnumber Octnumber Decnumber IntnumberExponent PointfloatExpfloat Floatnumber ImagnumberNumberSingleDoubleSingle3Double3 _litprefixTripleStringOperatorBracketSpecialFunny PlainTokenTokenContStr PseudoExtras PseudoTokenmapcompile tokenprogr r9 r? _strprefixesr r r r ExceptionrF rK rW r rX r\ ASCIIr r r r r r rH sysrj argvopenrY stdinr r r r <module> s 8 I c(