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d � Z d � Z d S( s8 General 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
i����( t warnpy3ks2 the fpformat module has been removed in Python 3.0t
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NotANumbers+ ^([-+]?)(\d*)((?:\.\d*)?)(([eE][-+]?\d+)?)$c B s e Z RS( ( t __name__t
__module__( ( ( s /usr/lib/python2.7/fpformat.pyR s s fpformat.NotANumberc C s� t j | � } | d k r' t | � n | j d d d d � \ } } } } | j d � } | d k ro d } n | r� | d } n | r� t | d � } n d } | | | | f S(
s� Return (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 integeri i i i t 0t +t i N( t decodert matcht NoneR t groupt lstript int( t st rest signt intpartt fractiont exppartt expo( ( s /usr/lib/python2.7/fpformat.pyt extract# s $
c C s� | d k rU t | � } | | | | | } } | | k r� | d | | } q� nW | d k r� t | � } | | | | | } } | | k r� d | | | } q� n | | f S( s5 Remove the exponent by changing intpart and fraction.i R ( t len( R R R t ft i( ( s /usr/lib/python2.7/fpformat.pyt unexpo3 s
c C s[ t | � } | | k r. | | d | | f St | � } | | d k rY d | d f S| | } | | | } | d k r&| | d } xH | d k r� | | d k r� Pn | d } q� Wd | } | d } d } | | t t | | � d � d t | � | d } | | | | } } n | d k r@| | | f S| | d | d f Sd S( s* Round or extend the fraction to size digs.R i R t 5i t 9N( R t chrt ord( R R t digsR R t totalt nextdigitt n( ( s /usr/lib/python2.7/fpformat.pyt roundfracA s,
8 c C s� t | � t d � k r' t | � } n y t | � \ } } } } Wn t k
rW | SXt | | | � \ } } t | | | � \ } } x$ | r� | d d k r� | d } q� W| d k r� d } n | d k r� | | d | S| | Sd S( 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.R i R i t .N( t typet reprR R R R$ ( t xR R R R R ( ( s /usr/lib/python2.7/fpformat.pyR [ s
c C s� t | � t d � k r' t | � } n t | � \ } } } } | s� x. | ru | d d k ru | d } | d } qH W| r� | d | d } } | d } q� d } n- | t | � d } | d | d | } } t d | � } t | | | � \ } } t | � d k rB| d | d | d | t | � d } } } n | | } | d k ri| d | } n t t | � � } d d t | � | } | d k r�d | } 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.R i R i i����R% i t -R t e( R& R' R R t maxR$ t abs( R( R R R R R R R* ( ( s /usr/lib/python2.7/fpformat.pyR k s6
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rU n Xd S( s Interactive test run.s Enter (x, digs): N( t inputR R t EOFErrort KeyboardInterrupt( R( R ( ( s /usr/lib/python2.7/fpformat.pyt test� s '( t __doc__t warningsR t ret __all__t compileR
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ValueErrorR t TypeErrorR R R$ R R R0 ( ( ( s /usr/lib/python2.7/fpformat.pyt <module> s