\ddZddlZddlTddlmZmZddlmZmZm Z dLddd d Z d Z dMdd dZ dZ dZdNdZdZdZdOdZdZdZdddZdZGddeZGddeZeeds(d Zd!Zeeee_eeee_ Gd"d#e!Z"d$Z#Gd%d&ee"'Z$Gd(d)ee"'Z%Gd*d+ee"'Z&Gd,d-ee"'Z'Gd.d/ee"'Z(e$e)e*e+fe%e,fe&e-fe'e!de.fe(e!d0fiZ/e$e.fiZ0e.d-e!dd-e)d&e*d&e+d&e,d)e-d+e!d0d/iZ1Gd1d2e2Z3Gd3d4e3Z4Gd5d6e3Z5ee6d7sd8Z7d9Z8ee7e8e6_9Gd:d;e:Z;Gd<d=e<Z=Gd>d?e<Z>Gd@dAe<Z?dBe@ejAjBdzzZCe eGdCdDZDdEZEdFZFgeEeFRZGGdGdHeZHdIZIdJZJeKdKkr eJdSdS)PaH ast ~~~ The `ast` module helps Python applications to process trees of the Python abstract syntax grammar. The abstract syntax itself might change with each Python release; this module helps to find out programmatically what the current grammar looks like and allows modifications of it. An abstract syntax tree can be generated by passing `ast.PyCF_ONLY_AST` as a flag to the `compile()` builtin function or by using the `parse()` function from this module. The result will be a tree of objects whose classes all inherit from `ast.AST`. 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JJu     dj!!!0066 6< % JJ| $ $ $ $ $ % %rc|||j|d|j|jjjzdz||jdS)Nrz= ) r\r~rrSbinopr6rtrur/rss rvisit_AugAssignz_Unparser.visit_AugAssignosh  dk""" 3DG$5$>??$FGGG dj!!!!!rc||dd|j ot|jt 5||jdddn #1swxYwY|d||j|j r1|d||j dSdS)Nrcrdr$r) r\rmr}rrrEr~rS annotationr/rss rvisit_AnnAssignz_Unparser.visit_AnnAssignus  __S#4;'X:dkSW;X;X Y Y ' ' MM$+ & & & ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' 4 do&&& : & JJu    MM$* % % % % % & &s A33A7:A7c|d|jr1|d||jdSdS)Nreturnr)r\r/rSr~rss r visit_Returnz_Unparser.visit_ReturnsQ ( : & JJsOOO MM$* % % % % % & &rc0|ddS)Npassr\rss r visit_Passz_Unparser.visit_Passs &rc0|ddS)Nbreakrrss r visit_Breakz_Unparser.visit_Breaks 'rc0|ddS)Ncontinuerrss rvisit_Continuez_Unparser.visit_Continues *rczdfdj|jdS)Nzdel c.dSrQrRrsrrTz(_Unparser.visit_Delete..rr)r\rMr~rrss` r visit_Deletez_Unparser.visit_Deletes? & 0000$-NNNNNrc|d||j|jr1|d||jdSdS)Nzassert ra)r\r~testr(rSrss r visit_Assertz_Unparser.visit_Assertsh ) di   8 $ JJt    MM$( # # # # # $ $rczdfdj|jdS)Nzglobal c.dSrQrRrsrrTz(_Unparser.visit_Global..rrr\rMrSrrss` r visit_Globalz_Unparser.visit_Globals? ) 0000$*djIIIIIrczdfdj|jdS)Nz nonlocal c.dSrQrRrsrrTz*_Unparser.visit_Nonlocal..rrrrss` rvisit_Nonlocalz_Unparser.visit_Nonlocals? + 0000$*djIIIIIrcX|tj|5|d|jrT|d|tj|j||jddddS#1swxYwYdS)Nawaitr)rqr$r9rSr/rvr:r~rss r visit_Awaitz_Unparser.visit_Await  !2D 9 9 * * JJw   z * 3##K$4djAAA dj)))  * * * * * * * * * * * * * * * * * *A1BB#&B#cX|tj|5|d|jrT|d|tj|j||jddddS#1swxYwYdS)Nyieldr)rqr$r*rSr/rvr:r~rss r visit_Yieldz_Unparser.visit_YieldrrcL|tj|5|d|jst d|tj|j||jddddS#1swxYwYdS)Nz yield from z-Node can't be used without a value attribute.) rqr$r*rSr/r&rvr:r~rss rvisit_YieldFromz_Unparser.visit_YieldFroms  !2D 9 9 & & JJ} % % %: R !PQQQ    0$* = = = MM$* % % %  & & & & & & & & & & & & & & & & & &sA+BB Bc<|d|js|jrtddS|d||j|jr1|d||jdSdS)Nraisez*Node can't use cause without an exception.rz from )r\exccauser&rSr~rss r visit_Raisez_Unparser.visit_Raises 'x z P !NOOO F 3 dh : & JJx MM$* % % % % % & &rc|d|5||jdddn #1swxYwY|jD]}|||jr[|d|5||jdddn #1swxYwY|jr^|d|5||jddddS#1swxYwYdSdS)Ntryelsefinally)r\rfr~rXhandlersorelse finalbody)rr'exs r do_visit_tryz_Unparser.do_visit_trys % ZZ\\ % % MM$) $ $ $ % % % % % % % % % % % % % % %-  B MM"     ; + IIf    + + dk*** + + + + + + + + + + + + + + + > . IIi  . . dn--- . . . . . . . . . . . . . . . . . . . .s5AAA+CCC D55D9<D9ct|j} d|_||||_dS#||_wxYw)NFrFrrr'prev_in_try_stars r visit_Tryz_Unparser.visit_TrysO, 1 %D    d # # # 0D    0D  0 0 0 0. 7ct|j} d|_||||_dS#||_wxYw)NTrrs r visit_TryStarz_Unparser.visit_TryStarsO, 1 $D    d # # # 0D    0D  0 0 0 0rc||jrdnd|jr/|d||j|jr/|d||j|5||jddddS#1swxYwYdS)Nzexcept*exceptr as )r\rFr.rSr~r|rfrXrss rvisit_ExceptHandlerz_Unparser.visit_ExceptHandlers t0>))h??? 9 % JJsOOO MM$) $ $ $ 9 " JJv    JJty ! ! ! ZZ\\ % % MM$) $ $ $ % % % % % % % % % % % % % % % % % %sCC C c||jD],}|d||-|d|jz|dd|jp|j5d}|jD]1}|r|dnd}||2|jD]1}|r|dnd}||2 dddn #1swxYwY| 5| |ddddS#1swxYwYdS) N@zclass rcrd)rlFraT) rYdecorator_listr\r~r|rmbasesrHrSrfr)rr'decocommaes rvisit_ClassDefz_Unparser.visit_ClassDefs '  D IIcNNN MM$     (TY&''' __S#4:3N_ O O ! !EZ ! !!JJt$$$$ E a    ] ! !!JJt$$$$ E a     ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !ZZ\\ : :  3 3D 9 9 9 : : : : : : : : : : : : : : : : : :s% A5D  DD+EEEc2||ddS)Ndef_function_helperrss rvisit_FunctionDefz_Unparser.visit_FunctionDefs dE*****rc2||ddS)Nz async defrrss rvisit_AsyncFunctionDefz _Unparser.visit_AsyncFunctionDef s dK00000rc||jD],}|d||-|dz|jz}|||dd5||jdddn #1swxYwY|jr/|d||j| | |5| |ddddS#1swxYwYdS)Nrrrcrdrrb) rYrr\r~r|rjrGrrSrfr|r)rr' fill_suffixrdef_strs rrz_Unparser._function_helper s '  D IIcNNN MM$    #di/ ' \\#s # # % % MM$) $ $ $ % % % % % % % % % % % % % % % < ( JJv    MM$, ' ' ' ZZd33D99Z : : : :  3 3D 9 9 9 : : : : : : : : : : : : : : : : : :s$B((B,/B,D55D9<D9c2|d|dS)Nzfor  _for_helperrss r visit_Forz_Unparser.visit_Fors &&&&&rc2|d|dS)Nz async for rrss rvisit_AsyncForz_Unparser.visit_AsyncFors t,,,,,rc|||tj|j||j|d||j|| |5||j dddn #1swxYwY|j r^|d|5||j ddddS#1swxYwYdSdS)N in rbr) r\rvr$r)rr~rSrHrfr|rXr)rr\r's rrz_Unparser._for_helper"s $ K-t{;;; dk""" 6 di   ZZd33D99Z : : % % MM$) $ $ $ % % % % % % % % % % % % % % % ; + IIf    + + dk*** + + + + + + + + + + + + + + + + + + + +s$-CCCD77D;>D;c|d||j|5||jdddn #1swxYwY|jrt |jdkrt|jdtr|jd}|d||j|5||jdddn #1swxYwY|jr8t |jdkr t|jdt|jr^|d|5||jddddS#1swxYwYdSdS)Nzif r^rzelif r) r\r~rrfrXrrJrIfrss rvisit_Ifz_Unparser.visit_If/sa % di   ZZ\\ % % MM$) $ $ $ % % % % % % % % % % % % % % %k )c$+..!33 4;q>SU8V8V3;q>D IIg    MM$) $ $ $ ) ) di((( ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) k )c$+..!33 4;q>SU8V8V3 ; + IIf    + + dk*** + + + + + + + + + + + + + + + + + + + +s6A++A/2A/D,,D03D0&GGGc|d||j|5||jdddn #1swxYwY|jr^|d|5||jddddS#1swxYwYdSdS)Nzwhile r)r\r~rrfrXrrss r visit_Whilez_Unparser.visit_WhileAsK ( di   ZZ\\ % % MM$) $ $ $ % % % % % % % % % % % % % % % ; + IIf    + + dk*** + + + + + + + + + + + + + + + + + + + +s$A++A/2A/&CCCc2dfdj|j|5|jddddS#1swxYwYdS)Nzwith c.dSrQrRrsrrTz&_Unparser.visit_With..Mrrrbr\rMr~rrfr|rXrss` r visit_Withz_Unparser.visit_WithKs ' 0000$-LLL ZZd33D99Z : : % % MM$) $ $ $ % % % % % % % % % % % % % % % % % %$B  BBc2dfdj|j|5|jddddS#1swxYwYdS)Nz async with c.dSrQrRrsrrTz+_Unparser.visit_AsyncWith..Srrrbr rss` rvisit_AsyncWithz_Unparser.visit_AsyncWithQs -    0000$-LLL ZZd33D99Z : : % % MM$) $ $ $ % % % % % % % % % % % % % % % % % %r quote_typesescape_special_whitespacecfd}dt||}dvr d|D}fd|D}|s>ttfd|Dd}dd |gfSrb|fd  |ddd kr1t |dd ksJd d dzd z|fS)zHelper for writing string literals, minimizing escapes. Returns the tuple (string literal to write, possible quote types). cs|dvr|S|dks|s(|ddS|S)Nz \unicode_escapeascii) isprintablerr)rrs r escape_charz2_Unparser._str_literal_helper..escape_char]sU- fDyy yxx 01188AAAHrr`r_c$g|] }|tv |Srh) _MULTI_QUOTES)riqs r z1_Unparser._str_literal_helper..js"PPPQQ-=O=Oq=O=O=Orcg|]}|v| Srhrh)rirescaped_strings rrz1_Unparser._str_literal_helper..ks#QQQ.9P9P19P9P9Prc30K|]}d|v |VdSrgrh)rirstrings rrmz0_Unparser._str_literal_helper..qs+CCF1INN!NNNNCCrrr^rc(|ddkS)Nrrrh)rr!s rrTz/_Unparser._str_literal_helper..usqt~b7I/Ir)rrNr)rvr>rwr'sortrJ)rr#rrrpossible_quotesquoter!s ` ` @r_str_literal_helperz_Unparser._str_literal_helperWsU      [&!9!9::% > ! !PP/PPPOQQQQoQQQ )&\\FCCCC[CCCVAYOOE!B$<%( (  Q  %I%I%I%I J J Jq!!$r(:::?1-..!3333!/!4t!;nR>P!P..rrc|||\}}|d}||||dS)zKWrite string literal value with a best effort attempt to avoid backslashes.r)rN)r(rS)rr#r quote_types r_write_str_avoiding_backslashesz)_Unparser._write_str_avoiding_backslashes}sP"66v;6WW  ^  j6&6*6677777rc0|d|jri|5}||dddn #1swxYwY|d|Sg}|jD]}|5}||dddn #1swxYwY|d|t|tfg}tt}|D]5\}}| |||\}}||6d|}|d}||||dS)NrKr`rr) rSr@ra_write_fstring_innerr,rvrLrrrr-rA _ALL_QUOTESr() rr'r_ fstring_partsr/new_fstring_partsr is_constantr+s rvisit_JoinedStrz_Unparser.visit_JoinedStrs! 3  " I 0F))$/// 0 0 0 0 0 0 0 0 0 0 0 0 0 0 077HH H [  E 1F))%000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1  *UH"="=>    ;'' "/ , , E;!%!9!9'*5":"" E;  $ $U + + + +)** ^  j5%55566666s#AAA%CC C ct|tr!|jD]}||dSt|tr`t|jt rF|jdddd}||dSt|tr| |dStd|)N{z{{}z}}z"Unexpected node inside JoinedStr, ) r JoinedStrrLr.r-r/rUreplacerSFormattedValuevisit_FormattedValuer&rr'r/s rr.z_Unparser._write_fstring_inners dI & & L 1 1))%0000 1 1 h ' ' LJtz3,G,G LJ&&sD1199#tDDE JJu      n - - L  % %d + + + + +J$JJKK Krc fd}dd5||j}d|vrtd|drd||jdkr*dt |j|jr/d |jddddS#1swxYwYdS) Nctd}|tj|||S)NTr?)r.rvr$r+r'r)innerunparserrs r unparse_innerz5_Unparser.visit_FormattedValue..unparse_innersR!tDzzT:::H  # #K$4$9$9$;$;U C C C>>%(( (rr5r6rz5Unable to avoid backslash in f-string expression partrr!re) rjr/r&rrS conversionchr format_specr.)rr'r@exprs` rr:z_Unparser.visit_FormattedValues_ ) ) ) ) ) \\#s # # < < =,,Dt|| Ks##  3 JJt   "$$ 5s4?3355666 < 3))$*:;;; < < < < < < < < < < < < < < < < < .rUr)rjrMr~r?rss` r visit_Listz_Unparser.visit_Lists \\#s # # P P OO4444dmTY O O O P P P P P P P P P P P P P P P P P P%A  AAc|dd5||j|jD]}|| ddddS#1swxYwYdS)Nrernrjr~elt generatorsrr'gens rvisit_ListCompz_Unparser.visit_ListComp \\#s # # # # MM$( # # # # # c"""" # # # # # # # # # # # # # # # # # # #:AA#&A#c|dd5||j|jD]}|| ddddS#1swxYwYdS)NrcrdrXr[s rvisit_GeneratorExpz_Unparser.visit_GeneratorExpr^r_c|dd5||j|jD]}|| ddddS#1swxYwYdS)Nr5r6rXr[s r visit_SetCompz_Unparser.visit_SetCompr^r_c6|dd5||j|d||j|jD]}|| ddddS#1swxYwYdS)Nr5r6r$)rjr~rrSr/rZr[s rvisit_DictCompz_Unparser.visit_DictComps \\#s # # # # MM$( # # # JJt    MM$* % % % # # c"""" #  # # # # # # # # # # # # # # # # # #sA)BBBc|jr|dn|d|tj|j||j|d|jtj|j g|j R||j |j D],}|d||-dS)Nz async for z for r if ) is_asyncrSrvr$r)rr~r+r'rHifs)rr' if_clauses rvisit_comprehensionz_Unparser.visit_comprehension s = JJ} % % % % JJw    K-t{;;; dk""" 6K,1133TYJJJJJ di    % %I JJv    MM) $ $ $ $ % %rc,|tj|5|tj|j|j||j|d||j|d|tj|j ||j ddddS#1swxYwYdS)Nrgz else ) rqr$r+rvr'rXrr~rSrrss r visit_IfExpz_Unparser.visit_IfExps%  !14 8 8 ' '    0 5 5 7 7DI N N N MM$) $ $ $ JJv    MM$) $ $ $ JJx    0$+ > > > MM$+ & & & ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' 'sCD  D D c|jrUdd5fdj|jddddS#1swxYwYdSddS)Nr5r6c.dSrQrRrsrrTz%_Unparser.visit_Set..%s 4(8(8rz{*()})r?rjrMr~rSrss` r visit_Setz_Unparser.visit_Set"s 9 c3'' T T 8 8 8 8$-SSS T T T T T T T T T T T T T T T T T T JJw     s%AAAc fdfd}dd5fd|t|j|jddddS#1swxYwYdS)Nc|d|dSNr$r~rS)kvrs rwrite_key_value_pairz2_Unparser.visit_Dict..write_key_value_pair,s? MM!    JJt    MM!     rc|\}}|Ldtj||dS||dS)N**)rSrvr$r0r~)rrurvrrws r write_itemz(_Unparser.visit_Dict..write_item1soDAqy 4   ##K$4a888 a     $$Q*****rr5r6c.dSrQrRrsrrTz&_Unparser.visit_Dict..>rr)rjrMrNrKrL)rr'rzrws` @r visit_Dictz_Unparser.visit_Dict+s      + + + + + +\\#s # #   OO((((*c$)T[6Q6Q                     s3A$$A(+A(c|ddt|jdkp"||tjk5||j|jddddS#1swxYwYdS)Nrcrdr)rmrJr?ror$r)rWr~rss r visit_Tuplez_Unparser.visit_TupleAs __    NNa  P4#6#6t#<#<{?P#P   6 6 OODM49 5 5 5  6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6s!A??BB~not+rN)InvertNotr7r8)rrrrNc|j|jjj}|j|}|||5|||tjur|d| ||j | |j ddddS#1swxYwYdSNr) unopr6rtruunop_precedencerqrSr$r7rvr9r~)rr'operatoroperator_precedences r visit_UnaryOpz_Unparser.visit_UnaryOpQs9TW.78"28<  !4d ; ; ( ( JJx #+*<<< 3    3T\ B B B MM$, ' ' ' ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( (sA.B;;B?B?rr/%<<>>|^&//ry) rPrQMultMatMultDivModLShiftRShiftBitOrBitXorBitAndFloorDivPow) rrNrrrrrrrrrrry)ryc(|j|jjj}|j|}|||5||jvr|}|}n|}|}|||j | |j | d|d|||j | |j ddddS#1swxYwYdSr) rr6rtrubinop_precedencerq binop_rassocr'rvrRr~rSrS)rr'rrleft_precedenceright_precedences r visit_BinOpz_Unparser.visit_BinOp~sQ:dg/89"3H=  !4d ; ; & &4,,,"5":":"<"<#6  "5#6#;#;#=#=    ; ; ; MM$) $ $ $ JJ8 ' ' '    0$* = = = MM$* % % % & & & & & & & & & & & & & & & & & &sB:DD D z==z!=z>=iszis notinznot in) EqNotEqLtLtEGtGtEIsIsNotInNotInc|tj|5|jtj|jg|jR||jt|j |jD]J\}}| d|j |j j zdz||K ddddS#1swxYwYdSr)rqr$r/rvr'rR comparatorsr~rNopsrScmpopsrtru)rr'ors r visit_Comparez_Unparser.visit_Compares&  $ 7 7 ! ! D   4 4 6 6 UDDT U U U U MM$) $ $ $DHd&677 ! !1 3Q[-A!BBSHIII a     ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !sB5C$$C(+C(andor)AndOr)rrcj|jjj}j|fd}|5d|dfd||jddddS#1swxYwYdS)Nc||dSr,)r'rvr~)r'rrs rincreasing_level_traversez9_Unparser.visit_BoolOp..increasing_level_traversesD"5":":"<"<     3T : : : MM$     rrc.Sr,rR)rrsrrTz(_Unparser.visit_BoolOp..sDJJqMMr)boolopsr6rtruboolop_precedencerqrMrL)rr'rrrrs` @@r visit_BoolOpz_Unparser.visit_BoolOps < 1 :;"4X>       !4d ; ; [ [HA OO111113Ldk Z Z Z [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [s 'A==BBc~|tj|j||jt |jt r4t |jjtr|d|d||j dS)Nrr) rvr$r:r/r~rr-r0rSrrss rvisit_Attributez_Unparser.visit_Attributes K,dj999 dj!!! dj( + +  4:;KS0Q0Q  JJsOOO 3 49rc|tj|j||j|dd5d}|jD]1}|r|dnd}||2|jD]1}|r|dnd}||2 ddddS#1swxYwYdS)NrcrdFraT) rvr$r:rDr~rjrGrSrH)rr'rrs r visit_Callz_Unparser.visit_CallsC K,di888 di   \\#s # # ! !EY ! !!JJt$$$$ E a    ] ! !!JJt$$$$ E a     ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !sA5CC Ccd}|tj|j||j|dd5||jr&||j|jjn||jddddS#1swxYwYdS)Nc:t|to|jSr,)rr=r?) slice_values ris_non_empty_tuplez5_Unparser.visit_Subscript..is_non_empty_tuples;..%$ rrern) rvr$r:r/r~rjrrWr?)rr'rs rvisit_Subscriptz_Unparser.visit_Subscripts    K,dj999 dj!!! \\#s # # * *!!$*-- * tz???? dj)))  * * * * * * * * * * * * * * * * * *sAB77B;>B;c|d|tj|j||jdS)Nr)rSrvr$r0r/r~rss r visit_Starredz_Unparser.visit_StarredsF 3 K,dj999 dj!!!!!rc0|ddS)NrRrRrss rvisit_Ellipsisz_Unparser.visit_Ellipsiss 5rc$|jr||j|d|jr||j|jr1|d||jdSdS)Nre)lowerr~rSuppersteprss r visit_Slicez_Unparser.visit_Slices : & MM$* % % % 3 : & MM$* % % % 9 % JJsOOO MM$) $ $ $ $ $ % %rc|d||j|5|jD]}|| ddddS#1swxYwYdS)Nzmatch )r\r~subjectrfcases)rr'cases r visit_Matchz_Unparser.visit_Matchs ( dl### ZZ\\ $ $  $ $ d#### $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $s A22A69A6c||j|jr1|d||jdSdSrs)rSargrr~rss r visit_argz_Unparser.visit_argsV 48 ? + JJt    MM$/ * * * * * + +rc8d}|j|jz}dgt|t|jz z|jz}t t ||dD]\}}|\}}|rd}n|d|||r*|d|||t|jkr|d|js|j r|rd}n|d|d|jr_||jj |jj r4|d||jj |j rvt |j |j D][\}}|d|||r*|d||\|j r~|rd}n|d|d |j j z|j j r8|d||j j dSdSdS) NTr^Frarbz, /rr$ry) posonlyargsrGrJdefaults enumeraterNrSr~vararg kwonlyargsrr kw_defaultskwarg) rr'rall_argsrrelementsads rvisit_argumentsz_Unparser.visit_argumentss#di/6S]]S-?-??@4=P(Xx)@)@!DD " "OE8DAq ! 4   MM!    ! 3 a   D,---- 5!!! ; :$/ : ! 4   JJsOOO{ : 4;?+++;):JJt$$$MM$+"8999 ? %DOT-=>> % %1 4    a   %JJsOOOMM!$$$ : 5 ! 4   JJtdjn, - - -z$ 5 4    dj344444 5 5  5 5rc|j|dn/||j|d||jdS)Nryrb)rrSr~r/rss r visit_keywordz_Unparser.visit_keyword4s\ 8  JJt     JJtx JJsOOO dj!!!!!rc|tj|5|d|5}||jdddn #1swxYwY|r|jdg|R|d|tj|j||jddddS#1swxYwYdS)Nlambdarr$) rqr$r+rSrar~rGrvrX)rr'r_s r visit_Lambdaz_Unparser.visit_Lambda<sh  !14 8 8 % % JJx  )F di((( ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) 3((((( JJt       0$) < < < MM$) $ $ $ % % % % % % % % % % % % % % % % % %s6*C. 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