C///

\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// """General floating point formatting functions. Functions: fix(x, digits_behind) sci(x, digits_behind) Each takes a number or a string and a number of digits as arguments. Parameters: x: number to be formatted; or a string resembling a number digits_behind: number of digits behind the decimal point """ from warnings import warnpy3k warnpy3k("the fpformat module has been removed in Python 3.0", stacklevel=2) del warnpy3k import re __all__ = ["fix","sci","NotANumber"] # Compiled regular expression to "decode" a number decoder = re.compile(r'^([-+]?)0*(\d*)((?:\.\d*)?)(([eE][-+]?\d+)?)$') # \0 the whole thing # \1 leading sign or empty # \2 digits left of decimal point # \3 fraction (empty or begins with point) # \4 exponent part (empty or begins with 'e' or 'E') try: class NotANumber(ValueError): pass except TypeError: NotANumber = 'fpformat.NotANumber' def extract(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 integer""" res = decoder.match(s) if res is None: raise NotANumber, s sign, intpart, fraction, exppart = res.group(1,2,3,4) if sign == '+': sign = '' if fraction: fraction = fraction[1:] if exppart: expo = int(exppart[1:]) else: expo = 0 return sign, intpart, fraction, expo def unexpo(intpart, fraction, expo): """Remove the exponent by changing intpart and fraction.""" if expo > 0: # Move the point left f = len(fraction) intpart, fraction = intpart + fraction[:expo], fraction[expo:] if expo > f: intpart = intpart + '0'*(expo-f) elif expo < 0: # Move the point right i = len(intpart) intpart, fraction = intpart[:expo], intpart[expo:] + fraction if expo < -i: fraction = '0'*(-expo-i) + fraction return intpart, fraction def roundfrac(intpart, fraction, digs): """Round or extend the fraction to size digs.""" f = len(fraction) if f <= digs: return intpart, fraction + '0'*(digs-f) i = len(intpart) if i+digs < 0: return '0'*-digs, '' total = intpart + fraction nextdigit = total[i+digs] if nextdigit >= '5': # Hard case: increment last digit, may have carry! n = i + digs - 1 while n >= 0: if total[n] != '9': break n = n-1 else: total = '0' + total i = i+1 n = 0 total = total[:n] + chr(ord(total[n]) + 1) + '0'*(len(total)-n-1) intpart, fraction = total[:i], total[i:] if digs >= 0: return intpart, fraction[:digs] else: return intpart[:digs] + '0'*-digs, '' def fix(x, digs): """Format x as [-]ddd.ddd with 'digs' digits after the point and at least one digit before. If digs <= 0, the point is suppressed."""