o N=&bc@sPdZddlZddlZddlmZmZejZded<dddd d d d d dddd Zdddddddddd Z e dddDddddddd d!d"d#d$d%d d& Z id'd(d)d*d+d,d-d.d/d0d1d2d3d4d5d6d7d8d9d:d;d<d=d>d?d@dAd>dBd@dCd@Z e ej e eje ejidDdEdFdGdHdIdJdKdLdMdNdOdPdQdRdSdTdUdVdWdXdYdZd[d\d]d^d_d`dadbd_dcd_daddddedfdgdhZe eje eje eje eje eje e didjdkZdldmdndodpdqdrdsZdtZdudvdwdxdydzd{d|d}dwdxdydzd~ Zddddddddddddd ZddddddddZddddddZddddZddddddZdddddddddZdddddddddddddZ iifddddife dife difiddife dddife dddifdZ!gdZ"ddddddddddd Z#GdddZ$Gddde$Z%Gddde$Z&Gddde$Z'Gdd„de'Z(GddĄde'Z)GddƄde'Z*GddȄde'Z+Gddʄde'Z,Gdd̄de'Z-Gdd΄de$Z.GddЄde.Z/Gdd҄de.Z0GddԄde.Z1Gddքde.Z2Gdd؄de$Z3Gddڄde3Z4Gdd܄de3Z5Gddބde3Z6Gddde4Z7Gddde5Z8Gddde6Z9Gddde3Z:Gddde$Z;Gddde$ZddZ?ddZ@ddZAddZBddZCddZDdddZEddZFddZGddZHddZId ddZJdS( zConvert LaTex maths code into presentational MathML. This module is provisional: the API is not settled and may change with any minor Docutils version. 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Remove , if it is single child and the parent infers an mrow or if it has only one child element. r]r) rr MathRowSchemarrrorindexAttributeError ValueErrorsuper)rtrrrrrrs    z mrow.close)rrrrr __classcell__rrrrrsrc@eZdZdZdS)rzCBase class for elements treating content as a single inferred mrow.N)rrrrrrrrrrc@r)mtrNrrrrrrrrc@r)mtdNrrrrrrrrc@r)mencloser]Nrrrrrrrrrrrc@r)mphantomr]Nrrrrrrrrc@r)msqrtr]Nrrrrrrrrc@r)mstyler]Nrrrrrrrrcs.eZdZdZdZfddZdddZZS) MathTokenzbToken Element: contains textual data instead of children. Base class for mo, mi, and mn. rc s||_tjdi|dS)Nr)rzrrv)rtrzrqrrrrvszMathToken.__init__cCst|j|jgSr)rrz translaterrrrrrszMathToken._xml_bodyr)rrrrrrvrrrrrrrs  rc@r)mtextNrrrrrr rrc@r)miNrrrrrr rrc@r)moNrrrrrr rrc@r)mnNrrrrrr rrcs,eZdZdZdZddZfddZZS)rzBase class for schemata expecting 2 or more children. The special attribute `switch` indicates that the last two child elements are in reversed order and must be switched before XML-export. r^cOs*|dd|_tj|g|Ri|dS)NrF)poprrhrv)rtrorrrrrvszMathSchema.__init__csFt|}|jr!|r!|jd|jd|jd<|jd<d|_|S)NF)rrrrro)rtrZ current_noderrrr"s "zMathSchema.append)rrrrrrvrrrrrrrs rc@r)msubNrrrrrr+rrc@r)msupNrrrrrr,rrc@r)msubsuprdNrrrrrr/rrc@r)munderNrrrrrr:rrc@r)moverNrrrrrr;rrc@r) munderoverNrrrrrrLrrc@r)mrootr^NrrrrrrOrrc@r)mfracr^NrrrrrrSrrc@r)mspacerNrrrrrrWrrcCs4td|}|durtd|}|d|dfS)a"Return leading TeX command name and remainder of `string`. >>> tex_cmdname('mymacro2') # up to first non-letter ('mymacro', '2') >>> tex_cmdname('name 2') # strip trailing whitespace ('name', '2') >>> tex_cmdname('_2') # single non-letter character ('_', '2') z([a-zA-Z]+) *(.*)Nz(.?)(.*)r]r^rematchgroupstringmrrr tex_cmdnameas  rcCs0td|}|durd|fS|d|dfS)zmReturn leading number literal and remainder of `string`. >>> tex_number('123.4') ('123.4', '') z([0-9.,]*[0-9]+)(.*)NrRr]r^rrrrr tex_number~s rcCs8td|tj}|dddd\}}}}|p|p||fS)zReturn first simple TeX token and remainder of `string`. >>> tex_token('\command{without argument}') ('\command', '{without argument}') >>> tex_token('or first character') ('o', 'r first character') a%((?P\\[a-zA-Z]+)\s* # TeX command, skip whitespace |(?P\\.) # one-character TeX command |(?P.?)) # first character (or empty) (?P.*$) # remaining part of string cmdchcmdch remainder)rrVERBOSEr)rrrrrrrrr tex_tokens  rcCsd}d}d}|ds|dd|ddfS|D])}|d7}|r$d}n|dkr+d}n|dkr4|d7}n|dkr<|d8}|dkrBnqtd |d|d||dfS) zReturn first TeX group or token and remainder of `string`. >>> tex_group('{first group} returned without brackets') ('first group', ' returned without brackets') rFrWNr]r/TrXzGroup without closing bracket) startswithr)rZ split_indexZ nest_levelescapecrrr tex_groups(  rcCs,t|\}}|dkrt|\}}||fS)aReturn first TeX group or token and remainder of `string`. >>> tex_token_or_group('\command{without argument}') ('\command', '{without argument}') >>> tex_token_or_group('first character') ('f', 'irst character') >>> tex_token_or_group(' also whitespace') (' ', 'also whitespace') >>> tex_token_or_group('{first group} keep rest') ('first group', ' keep rest') rW)rrlstrip)rrrrrrtex_token_or_groups rcCs\td|tj}|dur|dsd|fSz |d|dfWSty-td|w)a$Return optional argument and remainder. >>> tex_optarg('[optional argument] returned without brackets') ('optional argument', ' returned without brackets') >>> tex_optarg('{empty string, if there is no optional arg}') ('', '{empty string, if there is no optional arg}') z\s* # leading whitespace \[(?P(\\]|[^\[\]]|\\])*)\] # [group] without nested groups (?P.*$) NrUrRoptargrz+Could not extract optional argument from %r)rrrrrrrrrrr tex_optargs   rc Csd|}|}t|dkr|d|dd}}|dkrq |dkr2t|\}}t|||\}}n|dvr>> parse_latex_math(math(), r'lpha') math(mi('α')) >>> parse_latex_math(mrow(), r'x_{n}') mrow(msub(mi('x'), mi('n'))) r<rr]Nr/_^rWrXrkrPrrzz([=classmathopenprefixformz/()[]|FZstretchyz +*=<>,.!?`';@zUnsupported character: "%s")rsplitrr handle_cmdhandle_script_or_limitrrrrisalpharisdigitrranomalous_charsror~rrr) nodertreercmdnamenew_nodenumberrqZ previous_noderrrparse_latex_mathsR          *rcCsn |tvrtt|}|tvrd|d<||}||fS|tvr|dkr0t|\}}t|dd}ntt|}|dkrBt|td}n%|dkrPt|td d d }n|d kr\t|td }n |dkrgt|td}||}|r{|ddvr{|td}||fS|t vr|dkrddi}ndt |i}|dkrd|d<t|\}}| drt |dd|}|dkrt ||}| s|dkr|t|fi|}||fStdgi|}||||fS|dkr|tddddd }||fS|d!krt|d"}||fS|tvr|tt|d#d$}||fS|tvr)|tt|d%d&}||fS|tvr^i}|tvrD|rD|dd'vrDd(|d)<n |d*vrMd+|d<|tt|fi|}||fS|tvri}tt|} t|\} }| d,vrz t| d} Wntytd-|| fw| r| |d.<| |d/<d(|d0<|d1ks|d2rt} || | }| d3kr|t| fi||d4ks|d5r|}||fS|d6krt|\}}|d7kr|d8|fS| dr z t|dd}Wnty td9|wtd:|d;}|t|}||fS|ddkrNt"#d?d@|}|t$|}q3t||q3||fS|t%vrn|t&dAt%|dB}||fS|dCvrt'|\}}|dDrdEt(|ddFdG}|t&dA|dB}||fS|dHkrt)}||||fS|dIkrt*dJdK}||||fS|dLkrt+|\}}|rt}t,|d(dM}t|||nt-}||||fS|t.vrNt.|\}}|dNkrt+|\}}d1d4dO}||vr|/}|||dP<dQ|||d<t0dgi|}}|dRr:ttdS|tdTdRdU}dV|_1|rEt|fi|}||||fS|dkrgt2}t3|}||||fS|t4vrttt4|dd dWd(dM}|dXkrd |j5ddY<||_6||||fS|t7vrttt7|dd(d d(d dZ}||_6||||fS|d[krtd(dM}||||fS|t8vrttt8|dd(dM}||_6||||fS|d\krtd(dM}||||fS|d]vr8t+|\}}ttd^|dd}|r+t9|}tt|}t:|dkr%|j5d}||nt|}||||fS|t;vrtdgit;|}d|_1t<|trit:|dkri||j=j5|j=j5>|<|j=|_=||fS|j?j@d_kry||||fStd`||dart|\}}|dbvr|}tA|||dc}||fS|ddkrtB||S|dekrtC||Stdf|)hujProcess LaTeX command `name` followed by `string`. 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