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ZI eJ d k rd d lK ZK eL eK jM d k rõeB eN eK jM d jO qeB eK jP jO n d S( sÀ 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.s Ka-Ping Yee <ping@lfw.org>s@ GvR, ESR, Tim Peters, Thomas Wouters, Fred Drake, Skip MontanaroiÿÿÿÿN( t BOM_UTF8t lookup( t *i ( t tokeni t _t tokenizet generate_tokenst
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untokenizec G s d d j | d S( Nt (t |t )( t join( t choices( ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyt group0 s c G s t | d S( NR ( R ( R ( ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyt any1 s c G s t | d S( Nt ?( R ( R ( ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyt maybe2 s s [ \f\t]*s #[^\r\n]*s \\\r?\ns [a-zA-Z_]\w*s
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0[bB][01]*s 0[xX][\da-fA-F]*[lL]?s 0[oO]?[0-7]*[lL]?s [1-9]\d*[lL]?s [eE][-+]?\d+s \d+\.\d*s \.\d+s \d+s \d+[jJ]s [jJ]s [^'\\]*(?:\\.[^'\\]*)*'s [^"\\]*(?:\\.[^"\\]*)*"s% [^'\\]*(?:(?:\\.|'(?!''))[^'\\]*)*'''s% [^"\\]*(?:(?:\\.|"(?!""))[^"\\]*)*"""s [ubUB]?[rR]?'''s [ubUB]?[rR]?"""s& [uU]?[rR]?'[^\n'\\]*(?:\\.[^\n'\\]*)*'s& [uU]?[rR]?"[^\n"\\]*(?:\\.[^\n"\\]*)*"s \*\*=?s >>=?s <<=?s <>s !=s //=?s ->s [+\-*/%&|^=<>]=?t ~s [][(){}]s \r?\ns [:;.,`@]s' [uUbB]?[rR]?'[^\n'\\]*(?:\\.[^\n'\\]*)*t 's' [uUbB]?[rR]?"[^\n"\\]*(?:\\.[^\n"\\]*)*t "s '''s """s r'''s r"""s u'''s u"""s b'''s b"""s ur'''s ur"""s br'''s br"""s R'''s R"""s U'''s U"""s B'''s B"""s uR'''s uR"""s Ur'''s Ur"""s UR'''s UR"""s bR'''s bR"""s Br'''s Br"""s BR'''s BR"""t rt Rt ut Ut bt Bs r's r"s R's R"s u's u"s U's U"s b's b"s B's B"s ur's ur"s Ur's Ur"s uR's uR"s UR's UR"s br's br"s Br's Br"s bR's bR"s BR's BR"i t
|
TokenErrorc B s e Z RS( ( t __name__t
|
__module__( ( ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyR s t StopTokenizingc B s e Z RS( ( R R ( ( ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyR s c C sA | \ } } | \ } } d | | | | t | t | f GHd S( Ns %d,%d-%d,%d: %s %s( t tok_namet repr( t typeR t startt endt linet srowt scolt erowt ecol( ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyt
|
printtoken s c C s) y t | | Wn t k
|
r$ n Xd S( s:
|
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( t tokenize_loopR ( t readlinet
|
tokeneater( ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyR s c C s% x t | D] } | | q Wd S( N( R ( R* R+ t
|
token_info( ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyR) ³ s t Untokenizerc B s, e Z d Z d Z d Z d Z RS( c C s g | _ d | _ d | _ d S( Ni i ( t tokenst prev_rowt prev_col( t self( ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyt __init__¹ s c C sO | \ } } | | j k s! t | | j } | rK | j j d | n d S( Nt ( R/ t AssertionErrorR0 R. t append( R1 R! t rowt colt
|
col_offset( ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyt add_whitespace¾ s
|
c C s¸ x¥ | D] } t | d k r3 | j | | Pn | \ } } } } } | j | | j j | | \ | _ | _ | t t f k r | j d 7_ d | _ q q Wd j | j S( Ni i i t (
|
t lent compatR9 R. R5 R/ R0 t NEWLINEt NLR ( R1 t iterablet tt tok_typeR R! R" R# ( ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyR Å s c C s% t } g } | j j } | \ } } | t t f k rC | d 7} n | t t f k r^ t } n xÀ | D]¸ } | d \ } } | t t f k r | d 7} n | t k r¹ | j | qe nZ | t k rÕ | j
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qe n> | t t f k rð t } n# | r| r| | d t } n | | qe Wd S( NR3 i iÿÿÿÿ( t FalseR. R5 t NAMEt NUMBERR= R> t Truet INDENTt DEDENTt pop( R1 R R? t startlinet indentst toks_appendt toknumt tokvalt tok( ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyR< Ó s0
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( R R R2 R9 R R< ( ( ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyR- · s s coding[:=]\s*([-\w.]+)c C s^ | d j j d d } | d k s7 | j d r; d S| d k sV | j d rZ d S| S( s( Imitates get_normal_name in tokenizer.c.i R t -s utf-8s utf-8-s latin-1s
|
iso-8859-1s iso-latin-1s latin-1-s iso-8859-1-s iso-latin-1-( s latin-1s
|
iso-8859-1s iso-latin-1( s latin-1-s iso-8859-1-s iso-latin-1-( t lowert replacet
|
startswith( t orig_enct enc( ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyt _get_normal_nameñ s c sÞ t d } d } f d } f d } | } | j t ra t | d } d } n | sq | g f S| | } | r | | g f S| } | s¬ | | g f S| | } | rÎ | | | g f S| | | g f S( s
|
The detect_encoding() function is used to detect the encoding that should
|
be used to decode a Python source file. It requires one argment, 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.
|
s utf-8c s' y SWn t k
|
r" t SXd S( N( t StopIterationt bytes( ( R* ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyt read_or_stop s c sº y | j d } Wn t k
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r' d SXt j | } | sA d St | d } y t | } Wn! t k
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r t d | n X r¶ | j d k r© t d n | d 7} n | S( Nt asciii s unknown encoding: s utf-8s encoding problem: utf-8s -sig(
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t decodet UnicodeDecodeErrort Nonet cookie_ret findallRU R t LookupErrort SyntaxErrort name( R# t line_stringt matchest encodingt codec( t bom_found( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyt find_cookie s" i s utf-8-sigN( RB R\ RR R RE ( R* Rd t defaultRX Rg t firstt second( ( Rf R* s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyt detect_encodingü s,
|
|
c C s t } | j | S( s¬ 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 intput:
|
# 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
|
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The generate_tokens() generator requires one argment, 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
|
logical line; continuation lines are included.
|
i R t
|
0123456789R: i s EOF in multi-line stringiþÿÿÿs \
|
iýÿÿÿs \
|
R3 s s s #
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t #s
|
iÿÿÿÿs3 unindent does not match any outer indentation levels
|
<tokenize>s EOF in multi-line statementt .s
|
i i s \s ([{s )]}N( R: i ( R: i ( t stringt ascii_lettersR\ RV R; R t matchR" t STRINGt
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ERRORTOKENt tabsizet rstript COMMENTR> R5 RF t IndentationErrorRG t
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pseudoprogt spanRD R= t endswithR4 t triple_quotedt endprogst single_quotedRC t OPt ENDMARKER( R* t lnumt parenlevt continuedt namecharst numcharst contstrt needcontt contlineRJ R# t post maxt strstartt endprogt endmatchR" t columnt comment_tokent nl_post pseudomatchR! t spost eposR t initialt newlinet indent( ( s^ /tmp/ndk-User/buildhost/install/prebuilt/darwin-x86_64/lib/python2.7/lib2to3/pgen2/tokenize.pyR Y sú
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__author__t __credits__Rp t ret codecsR R t lib2to3.pgen2.tokenR: R t dirt xt __all__RW t NameErrort strR R R t
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Whitespacet Commentt Ignoret Namet Binnumbert Hexnumbert Octnumbert Decnumbert Intnumbert Exponentt
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Pointfloatt Expfloatt Floatnumbert
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