σ šίΘ[c@`s“dZddlmZmZmZmZddlZddlm Z m Z m Z ddl m Z de jfd „ƒYZd efd „ƒYZdS( u" Handles the "LaTeX" unit format. i(tabsolute_importtdivisiontprint_functiontunicode_literalsNi(tbasetcoretutilsi(tziptLatexcB`skeZdZed„ƒZed„ƒZed„ƒZed„ƒZed„ƒZedd„ƒZ RS(uΌ Output LaTeX to display the unit based on IAU style guidelines. Attempts to follow the `IAU Style Manual `_. cC`s|jddƒS(Nu_u\_(treplace(tclstname((s9lib/python2.7/site-packages/astropy/units/format/latex.pyt _latex_escapescC`s/|jdƒ}||jkr+|j|ƒS|S(Nulatex(tget_format_nameR R (R tunitR ((s9lib/python2.7/site-packages/astropy/units/format/latex.pyt_get_unit_names cC`szg}xd|D]\\}}|dkr>|j|j|ƒƒq |jdj|j|ƒtj|ƒƒƒq Wdj|ƒS(Niu {0}^{{{1}}}u\,(tappendRtformatRt format_powertjoin(R tunitstoutRtpower((s9lib/python2.7/site-packages/astropy/units/format/latex.pyt_format_unit_list&s   cC`s‹tj|j|jƒ\}}t|ƒrrt|ƒrH|j|ƒ}nd}|j|ƒ}dj||ƒ}n|j|ƒ}|}|S(Nu1u\frac{{{0}}}{{{1}}}(Rtget_grouped_by_powerstbasestpowerstlenRR(R Rt positivest negativests((s9lib/python2.7/site-packages/astropy/units/format/latex.pyt _format_bases2s  cC`sΫd}t|dƒr*|jjdƒ}n|dk r?|}nt|tjƒr§|jdkrid}n|j|jƒd}t |j ƒrΞ||j |ƒ7}qΞn't|tj ƒrΞ|j |jƒ}ndj|ƒS(Nu_formatulatexiuu\,u$\mathrm{{{0}}}$(tNonethasattrt_formattgett isinstanceRt CompositeUnittscaletformat_exponential_notationRRRt NamedUnitR R R(R Rt latex_nameR((s9lib/python2.7/site-packages/astropy/units/format/latex.pyt to_stringDs   u.8gcC`sštj|ƒrotj||ƒ\}}g}|rC|j|ƒn|rb|jdj|ƒƒndj|ƒStj|ƒr‚dS|dkr’dSdSdS(u Formats a value in exponential notation for LaTeX. Parameters ---------- val : number The value to be formatted format_spec : str, optional Format used to split up mantissa and exponent Returns ------- latex_string : str The value in exponential notation in a format suitable for LaTeX. u 10^{{{0}}}u \times u {\rm NaN}iu\inftyu-\inftyN(tnptisfiniteRtsplit_mantissa_exponentRRRtisnan(R tvalt format_spectmtextparts((s9lib/python2.7/site-packages/astropy/units/format/latex.pyR'Zs  ( t__name__t __module__t__doc__t classmethodR RRRR*R'(((s9lib/python2.7/site-packages/astropy/units/format/latex.pyRs t LatexInlinecB`s#eZdZdZed„ƒZRS(u1 Output LaTeX to display the unit based on IAU style guidelines with negative powers. Attempts to follow the `IAU Style Manual `_ and the `ApJ and AJ style guide `_. u latex_inlinecC`s|jt|j|jƒƒS(N(RRRR(R R((s9lib/python2.7/site-packages/astropy/units/format/latex.pyRs(R4R5R6R R7R(((s9lib/python2.7/site-packages/astropy/units/format/latex.pyR8s (R6t __future__RRRRtnumpyR+tRRRtextern.six.movesRtBaseRR8(((s9lib/python2.7/site-packages/astropy/units/format/latex.pyts " q