U [Sh(@sdZddlZddlZddlmZmZejZded<dddd d d d d dddd Zdddddddddd Z e dddDdddddZ d d d!d"d#d$d%d&d'd(d)d*d%d+ Z d,d-d.d/d0d1d2d3d4d5d6d7d8d7d8d8d9Z e eje eje ejd:d;dd?d@dAdBdCdDdEdFdGdHdGdGdHddIdJdKdLdMZe eje eje eje eje eje e dNdOdPZdQdRdSdTdUdVdWdXZdYZdZd[d\d\d]d^d^d_d_d`d`dadbdc Zdddedfdgdhdidjdkdldmdndodp ZdqdrdsdtdudvdwdxZdydrdsdzdud{Zd|d}d~dZddddddZdddddddddZ dddddddddddddZ!iifddddife!dife!difiddife!dddife!dddifdZ"dddddgZ#ddddddddddd Z$GdddZ%Gddde%Z&Gddde%Z'Gddde%Z(Gddde(Z)Gddde(Z*Gddde(Z+Gddde(Z,Gddde(Z-Gddde(Z.Gddde%Z/Gddde/Z0Gddde/Z1Gddde/Z2Gddde/Z3Gddde%Z4GddÄde4Z5Gddńde4Z6GddDŽde4Z7GddɄde5Z8Gdd˄de6Z9Gdd̈́de7Z:Gddτde4Z;Gddфde%ZddׄZ?ddلZ@ddۄZAdd݄ZBdd߄ZCddZDddZEdddZFddZGddZHddZIddZJdddZKdS)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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Attributes are downcased: Use CLASS to set "class" value. >>> math(mn(3), CLASS='test') math(mn(3), class='test') >>> math(CLASS='test').toprettyxml() ' ' N)childrenextend attributeskeyslower)selfr{r}keyrrr__init__Zs   z math.__init__cCsxddt|dgD}t|dr0|t|jt|trJ|jrJ|d|dd|j D7}|j j dd |S) NcSsg|] }t|qSr)repr)ritemrrr nsz!math.__repr__..r{dataz switch=TruecSs$g|]\}}|dk rd||fqS)Nz%s=%rrrkvrrrrssz(%s)z, ) getattrhasattrappendrr isinstance MathSchemaswitchr}items __class____name__join)rcontentrrr__repr__ms  z math.__repr__cCs t|jSr)lenr{rrrr__len__xsz math.__len__cCs |j|Srr})rrrrr __getitem__}szmath.__getitem__cCs||j|<dSrr)rrrrrr __setitem__szmath.__setitem__cOs|jj||Sr)r}get)rargskwargsrrrrszmath.getcCs|jdk ot||jkS)z;Return boolean indicating whether children may be appended.N) nchildrenrrrrrfulls  z math.fullcCs:|rtd||j|||_|r6|S|S)zAppend child and return self or first non-full parent. 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Remove , if it is single child and the parent infers an mrow or if it has only one child element. rir) rr MathRowSchemarrr{rindexr ValueErrorsuper)rrrrrrrs   z mrow.close)rrrrr __classcell__rrrrrsrc@seZdZdZdS)rzCBase class for elements treating content as a single inferred mrow.N)rrrrrrrrr src@s eZdZdS)mtrNrrrrrrsrc@s eZdZdS)mtdNrrrrrrsrc@seZdZdZdS)mencloseriNrrrrrrrrrsrc@seZdZdZdS)mphantomriNrrrrrrsrc@seZdZdZdS)msqrtriNrrrrrrsrc@seZdZdZdS)mstyleriNrrrrrrsrcs.eZdZdZdZfddZdddZZS) MathTokenzbToken Element: contains textual data instead of children. Base class for mo, mi, and mn. rc s||_tjf|dSr)rrr)rrr}rrrr)szMathToken.__init__cCst|j|jgSr)rr translaterrrrrr-szMathToken._xml_body)r)rrrrrrrrrrrrr"s rc@s eZdZdS)mtextNrrrrrr1src@s eZdZdS)miNrrrrrr2src@s eZdZdS)moNrrrrrr3src@s eZdZdS)mnNrrrrrr4srcs,eZdZdZdZddZfddZZS)rzBase class for schemata expecting 2 or more children. The special attribute `switch` indicates that the last two child elements are in reversed order and must be switched before XML-export. rjcOs$|dd|_tj|f||dS)NrF)poprrtr)rr{rrrrrEszMathSchema.__init__csFt|}|jrB|rB|jd|jd|jd<|jd<d|_|S)NF)rrrrr{)rrZ current_noderrrrIs  "zMathSchema.append)rrrrrrrrrrrrr<src@s eZdZdS)msubNrrrrrrRsrc@s eZdZdS)msupNrrrrrrSsrc@seZdZdZdS)msubsuprpNrrrrrrVsrc@s eZdZdS)munderNrrrrrrasrc@s eZdZdS)moverNrrrrrrbsrc@s eZdZdS) munderoverNrrrrrrssrc@seZdZdZdS)mrootrjNrrrrrrvsrc@seZdZdZdS)mfracrjNrrrrrrzsrc@seZdZdZdS)mspacerNrrrrrr~srcCs4td|}|dkr td|}|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(.?)(.*)rirjrematchgroupstringmrrr tex_cmdnames  rcCs0td|}|dkrd|fS|d|dfS)zmReturn leading number literal and remainder of `string`. >>> tex_number('123.4') ('123.4', '') z([0-9.,]*[0-9]+)(.*)Nr]rirjrrrrr tex_numbers rcCs8td|tj}|dddd\}}}}|p2|p2||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.*$) # remaining part of string cmdchcmdch remainder)rrVERBOSEr)rrrrrrrrr tex_tokens rcCsd}d}d}|ds.|dd|ddfS|D]R}|d7}|rHd}n0|dkrVd}n"|dkrh|d7}n|dkrx|d8}|dkr2qq2td |d|d||dfS) zReturn first TeX group or token and remainder of `string`. >>> tex_group('{first group} returned without brackets') ('first group', ' returned without brackets') rFrbNrir5TrczGroup without closing bracket) startswithr)rZ split_indexZ nest_levelescapecrrr tex_groups&  rcCs,t|\}}|dkr$t|\}}||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') rb)rrlstrip)rrrrrrtex_token_or_groups rcCsftd|tj}|dkr*|ds*d|fSz|d|dfWStk r`td|YnXdS)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.*$) Nr`r]optargrz+Could not extract optional argument from %r)rrrrrrrrrrr tex_optarg&s rc Csd|}|}t|dkr|d|dd}}|dkr@q|dkrft|\}}t|||\}}q|dkrzt||}q|dkrt}|||}q|dkr|}q|d krt }|||}q| r|t |}q| rt |\}}|t||}q|tkrzi}|d krb|jrb|jd }t|d d d ksZ|ddkrbd|d<|tt|f|}q|dkr|t|dd}q|dkr|t|}qtd|q|S)uAppend MathML conversion of `string` to `node` and return it. >>> parse_latex_math(math(), r'lpha') math(mi('α')) >>> parse_latex_math(mrow(), r'x_{n}') mrow(msub(mi('x'), mi('n'))) rErriNr5_^rbrcrwr[rrz([=classmathopenprefixformz/()[]|FZstretchyz +*=<>,.!?`';@zUnsupported character: "%s")rsplitrr handle_cmdhandle_script_or_limitrrrrisalpharisdigitrranomalous_charsr{rrrr) nodertreerZcmdnamenew_nodenumberr}Z previous_noderrrparse_latex_mathEsR            rcCs8 |tkr6tt|}|tkr$d|d<||}||fS|tkr|dkr`t|\}}t|dd}n tt|}|dkrt|td}nJ|dkrt|td d d }n.|d krt|td }n|dkrt|td}||}|r|ddkr|td}||fS|t krt |\}}}}|r:|td||d}||fS| rHd}|t |d}|rp|tdd d}|r|td}|t dd}t|\}}t ||}|r|tdd d}||fS|t kr|dkrddi} n dt |i} |dkrd| d<t|\}} |dr2t|dd |}|d!krHt||}|s\|d"krv|t|f| }|| fStf| } || | |fS|d#kr|td$d%d&d'd(}||fS|d)krt |d*}||fS|tkr|tt|d+d,}||fS|tkr&|tt|d-d.}||fS|tkri} |tkr\|r\|dd/kr\d0| d1<n|d2krnd3| d<|tt|f| }||fS|tkri} tt|} t|\}}|d4krzt|d}Wn&tk rtd5||fYnX| r| | d6<| | d7<d0| d8<|d9ks*|d:r>t}|||}|d;krZ|t|f| |dkrt |\}}|d?kr|d@|fS|drzt|dd }Wn"tk rtdA|YnXt!"dB|dC}|t|}||fS|dDkrt|\}}|#dE}t$|D]@\}}|dFdkrrt%&dGdH|}|t'|}n t ||q>||fS|t(kr|t dIt(|d}||fS|dJkrt)|\}}|dKrdLt*|d dMdN}|t dI|d}||fS|dOkr*t+}||||fS|dPkrPt,dQdR}||||fS|dSkrt-|\}}|rt}t.|d0dT}t |||nt/}||||fS|t0krjt0|\}}|dUkrt-|\}}d9dt-|\}}ttdb|dd }| r$t;|}t t|}t<|dk r|j7d}||nt|}||||fS|t=k rtft=|}d |_3t>|t rt<|dk r||j?j7|j?j7@|<|j?|_?n&|jAjBdck r||n tdd|||fS|de rt |\}} |dfk r| }tC|||dg}||fS|dhk rtD||S|dik r(tE||Stdj|d S)kujProcess LaTeX command `name` followed by `string`. Append result to `node`. If needed, parse `string` for command argument. Return new current node and remainder of `string`: >>> handle_cmd('hbar', math(), r' rac') (math(mi('ℏ')), ' \frac') >>> handle_cmd('hspace', math(), r'{1ex} (x)') (math(mspace(width='1ex')), ' (x)') z capital-greekrrr0) mathvariantrrUr¯F)accentrrTrrLr)rVrUu⁡r-)lspacerspacerC)widthr^r0.333emr_r2rr4r5riNr3r\colonrFZpostfix0z0.28em)rr r Zidotsintz\int\dotsi\intzfont-weight: bold)stylez75%)Zmathsizez _^T movablelimits)r8r9rz()[]/|.z!Unsupported "\%s" delimiter "%s"!maxsizeZminsizeZ symmetricrrl.rsrnotrbz{\not z\not: Cannot negate: "%s"!NFCu̸)textZmboxZtextrm$rjz(^ | $)rZz%s)Zhspacermuz%semrZphantomZboxedbox)notationsqrt)rrl)rrZnumalignz numalign-ro)rmrprRr )rr ZoversetZunderset)Z xleftarrowZ xrightarrowlongrtz3Declaration "\%s" must be first command in a group.limitsr)r beginendzUnknown LaTeX command: \)Flettersrgreek_capitalsr functionsrrrrmodulo_functionsrrrmath_alphabetsrrr3rrthick_operatorssmall_operators operatorsr bigdelimitersdelimiter_sizes stretchablesrrrendswithrrr unicodedata normalizer enumeratersubrspacesrfloatrrrrr fractionscopyrrrraccentsr{Ztex_cmdoverunderrr layout_stylesrrrrrrbegin_environmentend_environment)rrrrrbinarynamedZ parenthesespaddingr}rrZdelimiter_attributessize delimiterrowpartsipartradixZ indexnodeZ style_attsZ frac_attsrZoptargsrnentryZ subscriptbaseZsub_noderrrrs                                                                                                  rcCs$|j}|dkrd|d<n |dks4t|ddtkr.rrjri)r=int)rowstabsrrrtex_equation_columnsGsrVcCslddd}tdd|D}|rhddg|}dd g|}d |d|d |d <d |d||d <|S)NalignT)rrgcss"|]}|d|dVqdSrOrPrRrrrr[sz#align_attributes..rsrrrrBrErirIrJ)r=r)rTZattsrUZalignsspacingrrralign_attributesXs  rYcCsftdd}|}|sTd|d<t|d}t|dkrTt}|tt|ft|t ||| S)zoReturn string with MathML code corresponding to `tex_math`. Set `inline` to False for displayed math. z"http://www.w3.org/1998/Math/MathML)Zxmlnsrrz\\ri) rtrrrrrrrrYrr)Ztex_mathinlineZ math_treerrTrrr tex2mathmlms   r[)r])T)Lrrr/Zdocutils.utils.mathrrZ mathalphar#r$r%updater&r'r-Z mathfencerZ mathcloser*ZmathbinZmathrelZmathordZ mathpunctZmathopr(r)rr3r7r8r9rr3rMr:r5r,r+rtrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr;r<rVrYr[rrrrs                             1Sc !