mò %U²Ic@sdZdkZdddgZeidƒZydefd„ƒYZWnej o dZnXd„Zd „Z d „Z d „Z d „Z d „Z dS(s8General floating point formatting functions. Functions: fix(x, digits_behind) sci(x, digits_behind) Each takes a number or a string and a number of digits as arguments. Parameters: x: number to be formatted; or a string resembling a number digits_behind: number of digits behind the decimal point Ntfixtscit NotANumbers-^([-+]?)0*(\d*)((?:\.\d*)?)(([eE][-+]?\d+)?)$cBstZRS(N(t__name__t __module__(((t%/data/zmath/lib/python2.4/fpformat.pyRssfpformat.NotANumbercCsªti|ƒ}|djo t|‚n|iddddƒ\}}}}|djo d}n|o|d}n|ot |dƒ}nd}||||fS( sÅReturn (sign, intpart, fraction, expo) or raise an exception: sign is '+' or '-' intpart is 0 or more digits beginning with a nonzero fraction is 0 or more digits expo is an integeriiiit+tiN( tdecodertmatchtstrestNoneRtgrouptsigntintparttfractiontexpparttinttexpo(R RR RRRR((Rtextract s $ cCs¾|djoLt|ƒ}||| ||}}||jo|d||}q´n\|djoNt|ƒ}|| |||}}|| jod| ||}q´n||fS(s5Remove the exponent by changing intpart and fraction.it0N(RtlenRtfRti(RRRRR((Rtunexpo/s     cCspt|ƒ}||jo||d||fSnt|ƒ}||djod| dfSn||}|||}|djo®||d}xL|djo$||djoPn|d}q™Wd|}|d}d}|| t t ||ƒdƒdt|ƒ|d}|| ||}}n|djo||| fSn|| d| dfSdS(s*Round or extend the fraction to size digs.RiRt5it9N( RRRtdigsRRttotalt nextdigittntchrtord(RRRRRRRR((Rt roundfrac=s0        8 cCsýt|ƒtdƒjot|ƒ}nyt|ƒ\}}}}Wntj o |SnXt |||ƒ\}}t |||ƒ\}}x'|o|ddjo|d}q’W|djo d}n|djo||d|Sn ||SdS(s‡Format x as [-]ddd.ddd with 'digs' digits after the point and at least one digit before. If digs <= 0, the point is suppressed.RiRit.N( ttypetxtreprRRRRRRRR"R(R%RRRRR((RRWs"   cCsÑt|ƒtdƒjot|ƒ}nt|ƒ\}}}}|phx1|o)|ddjo|d}|d}qKW|o#|d|d}}|d}qÝd}n.|t|ƒd}|d|d|}}t d|ƒ}t |||ƒ\}}t|ƒdjo6|d|d|d |t|ƒd}}}n||}|djo|d|}ntt |ƒƒ}ddt|ƒ|}|djod|}n d |}|d |S( s¥Format x as [-]d.dddE[+-]ddd with 'digs' digits after the point and exactly one digit before. If digs is <= 0, one digit is kept and the point is suppressed.RiRiiÿÿÿÿR#it-RteN(R$R%R&RRRRRRtmaxRR"R tabsR((R%RR(RR RRR((RRgs8  6    cCs]y=x6tdƒ\}}|Gt||ƒGt||ƒGHqWWnttfj onXdS(sInteractive test run.isEnter (x, digs): N(tinputR%RRRtEOFErrortKeyboardInterrupt(RR%((Rttest‡s((t__doc__tret__all__tcompileRt ValueErrorRt TypeErrorRRR"RRR.( RR1R0R.RRRRR"R((Rt? s