<`>adZddlmZdZdZd dZdZdZd ZGd d e Z d Z d!dZ d dZ dZdZdZdZdZ d"dZd dZedkrddlZeejdkr&ddlZejejjeejddZedeeeeeZedeeeeZ edeee ee ksJedeee eedeeeedSdS)#aZT2CharString operator specializer and generalizer. PostScript glyph drawing operations can be expressed in multiple different ways. For example, as well as the ``lineto`` operator, there is also a ``hlineto`` operator which draws a horizontal line, removing the need to specify a ``dx`` coordinate, and a ``vlineto`` operator which draws a vertical line, removing the need to specify a ``dy`` coordinate. As well as decompiling :class:`fontTools.misc.psCharStrings.T2CharString` objects into lists of operations, this module allows for conversion between general and specific forms of the operation. ) maxStackLimitct|tr|}g}|D]Y} t|}n1#t$r$ t |}n#t$rYnwxYwYnwxYw||Z|SN) isinstancestrsplitint ValueErrorfloatappend)stringprogramtokens >& U u::55     %LLEE    D   ..s5A A/ AA/ A)&A/(A))A/.A/c@dd|DS)N c34K|]}t|VdSr)r).0xs r z"programToString..$s())AQ)))))))join)rs rprogramToStringr#s# ))))))))rNcd}d}d}d}g}g}t|}|D]} t| ts|| .| dkr\|Jd||z} |d} | | zdz} || dg|| d<|| t |zdz z }t |}| dkr!|d}t |t usJno|sm| dvrid }| d v} |r|t ||dz}nt |}|r5|d z| z r-|d}|d |gf| d vrV|r|d |f|| gf|d t|gfn|| |fg}|r|d |f|S)uTakes a T2CharString program list and returns list of commands. Each command is a two-tuple of commandname,arg-list. The commandname might be empty string if no commandname shall be emitted (used for glyph width, hintmask/cntrmask argument, as well as stray arguments at the end of the program (¯\_(ツ)_/¯). 'getNumRegions' may be None, or a callable object. It must return the number of regions. 'getNumRegions' takes a single argument, vsindex. If the vsindex argument is None, getNumRegions returns the default number of regions for the charstring, else it returns the numRegions for the vsindex. The Charstring may or may not start with a width value. If the first non-blend operator has an odd number of arguments, then the first argument is a width, and is popped off. This is complicated with blend operators, as there may be more than one before the first hint or moveto operator, and each one reduces several arguments to just one list argument. We have to sum the number of arguments that are not part of the blend arguments, and all the 'numBlends' values. We could instead have said that by definition, if there is a blend operator, there is no width value, since CFF2 Charstrings don't have width values. I discussed this with Behdad, and we are allowing for an initial width value in this case because developers may assemble a CFF2 charstring from CFF Charstrings, which could have width values. FNrblendvsindex> hstemvstemendcharhmovetohstemhmrmovetovmovetovstemhmcntrmaskhintmaskT>r#r&>r(r)) iterrrr lentyper popnext)r getNumRegions seenWidthOpvsIndex lenBlendStacklastBlendIndexcommandsstackitrnumSourceFonts numBlends numBlendArgsparitynumArgswidths rprogramToCommandsr?'sZ0    7mm/ / U E3   <<  g  # # # g...>Ry9n,q0<!<-..125,IE *Q..=JJ>   2Y7 w--3      #U'; + +6c%"8999GG%jjG #7Q;&(# IIaLLE OOR%M""" &&& ! OORK    ??E2; ??Bb #$$$$ ??E5>""" %%  //2u+rcg}|D]W}t|tr+|||dB||X|S)Nr)rlistextendr )args token_listargs r_flattenBlendArgsrF|sp ST S W Srcg}|D]Y\}}td|Drt|}|||r||Z|S)znTakes a commands list as returned by programToCommands() and converts it back to a T2CharString program list.c3@K|]}t|tVdSrrrArrEs rrz$commandsToProgram..,//3C  //////r)anyrFrBr )r6roprCs rcommandsToProgramrNsz WR//$/////" D ! !4 .. >>"rc#Kt||zdkrt|tdt||D]}||||zVdS)z'Group the list el into groups of size nrN)r-r range)elnis r_everyNrTshGGaK1JrNN* 3r77A  Q 1QqS5 ////rc,eZdZedZedZedZedZedZedZ edZ edZ ed Z ed Z ed Zed Zed ZdS)!_GeneralizerDecombinerCommandsMapc#ZKt|dkrt|d|fVdS)Nr*r%r-r rCs rr%z)_GeneralizerDecombinerCommandsMap.rmovetos9YY!^^:d+++ Drc#jKt|dkrt|d|ddgfVdSNrr%rrXrYs rr#z)_GeneralizerDecombinerCommandsMap.hmovetosAYY!^^:d+++ T!WaL!!!!!!rc#jKt|dkrt|dd|dgfVdSr[rXrYs rr&z)_GeneralizerDecombinerCommandsMap.vmovetosAYY!^^:d+++ QQL!!!!!!rc#^K|st|t|dD]}d|fV dS)Nr*rlinetor rTrYs rr^z)_GeneralizerDecombinerCommandsMap.rlinetosP %Z%%%dAd T rc#K|st|t|} dt|dgfVddt|gfV+#t$rYdSwxYwNTr^rr r,r0 StopIterationrCr8s rhlinetoz)_GeneralizerDecombinerCommandsMap.hlinetos %Z%%% Dzz"% tBxxm $$$$ q$r((m $$$$% 44,A AAc#K|st|t|} ddt|gfVdt|dgfV+#t$rYdSwxYwrarbrds rvlinetoz)_GeneralizerDecombinerCommandsMap.vlinetos %Z%%% Dzz"% q$r((m $$$$ tBxxm $$$$% 44rfc#^K|st|t|dD]}d|fV dS)N rrcurvetor_rYs rrkz+_GeneralizerDecombinerCommandsMap.rrcurvetosP %Z%%%dAd t rc#|Kt|dkst|dzdkrt|t|dzdkr4d|d|d|d|d|ddgfV|dd}t|dD]&}d|dd|d|d|ddgfV'dSNrr*rkrr-r rTrYs r hhcurvetoz+_GeneralizerDecombinerCommandsMap.hhcurvetosYY]]c$ii!ma''z$/?/?)?YY]a Qa$q'47DGQG HHHH qrr(4dACCd QDGT!Wd1gqA BBBBBCCrc #|Kt|dkst|dzdkrt|t|dzdkr4d|d|d|d|dd|dgfV|dd}t|dD]&}dd|d|d|dd|dgfV'dSrmrqrYs r vvcurvetoz+_GeneralizerDecombinerCommandsMap.vvcurvetosYY]]c$ii!ma''z$/?/?)?YY]a Qa$q'47AtAwG HHHH qrr(4dACCd 47DGT!WaaA BBBBBCCrc#Kt|dkst|dzdvrt|d}t|dzdkr*t|dzdk}|dd|dd}}t|d} t|}d |d d |d|dd |d gfVt|}d d |d |d|d|d d gfVg#t$rYnwxYw|r\|}|r,d |d d |d|d|d|d gfVdSd d |d |d|d|d |dgfVdSdS Nrn>rrrnrpr*rrpTrkrror-r rTr0rcrC last_args lastStraightr8s r hvcurvetoz+_GeneralizerDecombinerCommandsMap.hvcurvetosYY]]c$ii!m944Jtz)_convertBlendOpToArgs..s"4443C  444rcfg|].}t|trt|n|gD]}|/SrrrA_convertBlendOpToArgs)rerSs rrz)_convertBlendOpToArgs..s` A A A",Qt"4"4=A1# A AA1 A A A Arrrcg|]}|gSrrrJs rrz)_convertBlendOpToArgs../s222#222rc*g|]}||zSrr)rrS deltaArgs numRegionss rrz)_convertBlendOpToArgs..2s' Z Z Zqy1z>)* Z Z Zrrcg|] \}}||z Srr)rabs rrz)_convertBlendOpToArgs..3s ===$!QA===r)rLr-r rPzip) blendListrCr: defaultArgsnumDeltaValues deltaList blend_argsrrs @@rrrs' 44)44455 A Ai A A A$$ $"X SbS $ii"Q& JN #s4yy 0 0922jyj!1222 )** i.. 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If both are zero, it returns a single zero still. >>> _categorizeVector((0,0)) ('0', (0,)) >>> _categorizeVector((1,0)) ('h', (1,)) >>> _categorizeVector((0,2)) ('v', (2,)) >>> _categorizeVector((1,2)) ('r', (1, 2)) rr0Nvhrr)rs r_categorizeVectorr\sg !  1 q!u* qu* 1 q!u* q&=rc6|dkr|S|dkr|S||kr|SdS)Nrrrrs r_mergeCategoriesrvs.HHQhHHQhFF1H rc2|dkrdS|dkrdS|dvsJ|S)Nrr0rr)rs r_negateCategoryr|s.HHSSHHSS T  rct|}d}g}d}||kr^||}t|ts!|||dz }|dz }n|}t|}|g}|dz }|d|zz }||krpt||trU||||dz }||z }||ztkrn!||krt||tUt|} g} |D]}| |d|D]}| |dd | | || || z}||k^|S)Nrr)r-rrAr rrB) rCnum_args stack_usenew_argsrSrEprev_stack_use num_sources blendlist num_blendsrs r_convertToBlendCmdsrs II  8|| Q# C  &+ ??361 >99> S;u961 K9 h,,JtAw55, T!WFA I;..  h,,JtAw55,I::sc!fsc!""g Z    ??: *9Q 8||T rcft|trat|trHt|t|krtdt ||DS||}}t|tr"t |d|g|ddzS||zS)Nc4g|]\}}t||Sr)_addArgs)rvavbs rrz_addArgs..s& 3 3 328B   3 3 3rrr)rrAr-r rrrs rrrsq$4 !ffA ,, 3 3Q 3 3 33 Qa1q$% 1Q4   qu $$ ArT0cV|rt||}nt|}tt|dz ddD]y}d||dcxkr||dz dkrOn-||dz d||d}}d|d|dz|d|dzgf||dz <||=ztt|D]}||\}} |dvr%t | \} } | |ddz| f||<6|dkrPt | dd\} } t | d d\} }| | zd z| | dd z|zf||<|stt|dz ddD]}||\}} |d kr;t| d ksJt | dd \} } | dz}|| f||<|dkr||=X|r|dvr|||dz dkrs||dz \}}t| dkrt|dksJ t | d|dg}n#t $rYwxYw||f||dz <||=tdt|dz D]3}||\}} ||dz d||dzd}}|dvrM||cxkrdkr@nn=t| dksJ|ddkr d| dgn | ddg} d| f||<|ddd krt| dkr||cxkrdkrn|ddk|ddkz sJ|ddkrd}n |ddkrd}n|ddkrd }nd}| d|t| dz| |dz} d| f||<35tt|dz ddD]}||dz \}} ||\}}d}||hddhkr=||kr|}n!|dkrt|dkrd}nt|dkrd}n||fdvr|}n||hddhkr|}nd |ddcxkr|ddkrnn|dd\}}|dd\}}|dks|dks||cxkrdkrnnt||}||dkrt||}|d|zd z}nL|dkr*t|t|}|.|dzd z}nt||}|K||zd z}|r3t| t|z|kr|| |zf||dz <||=tt|D]A}||\}} |dvrd|ddz| f||<%|ddd kr |dddvr|dd\}}|dk|dkz rt| dzdksJ|d krd}|d krd}|dkr|}|dkrt|}||hddhks J||ft| dzrj||kr>|dkt| d!zdkz r | dd | ddz| d dz} n&|dkr | dd| ddz| ddz} ||zd z| f||<ACtt|D]:}||\}} td"| Dr|t| f||<;|S)#N)rrrrr%>r^r%rkr*rcurvetorn 00curvetorolineto0lineto>rerh>rrerhr^rrpr)rrjrr>r^rrkrrhre>r0movetor>hhhvrrvhvvrrwc3@K|]}t|tVdSrrIrJs rrz%specializeCommands..rKr) rrArPr-rrr r.rrrLr)r6rgeneralizeFirstpreserveTopologymaxstackrSv1v2rMrCcc1args1c2args2_ other_argsrprvnxtposop1op2new_opd0d1d2d3dop0s rspecializeCommandsrs, P | D D D(( (^^( H aB ' 'Q(1+a.4444HQqSM!$444444 QqSM! hqk!nr21be RU2a5[9:8AaC={` H     Q QK'"T !!! t $ $71d2abb648A; ; bqb**92u bcc++92uBy%QqS /%"778A; 8  Xq"b ) )  aqk82t K t99>>>>QqS **GAt 8Bd(HQK Ioo    R) ) ) hqsmAQqSMMAz t99>>c*oo2222$q':a=112XX  XNHQqSM   3x==? # #  Q QK'"T QqSM! hqsmA.c# ,,,1H1H1H1Hy1H1H1H1H1H d))q....Q%3,,1d1g,,T!WaL4T"8A; VySYY!^^s0I0I0I0Ik0I0I0I0I0I a5Crs  +*****    ***RRRRj   w!w!w!w!w!w!w!w!r!!!F    Dcccc4      111f    YYYYvcccc z CMMQ... #(?7?   #$$$ ?38ABB< ( (zEE//'22333  g & &{UU8___  h ' '   %%(A(A"B"B"B8oo6G6G6P6P&Q&Q R R Roo6G6G6P6P&Q&Q R R R R Rr