Attachment 85942 Details for Bug 51008 – Python script with all relevant functions to solve this bug implemented.

Python script with all relevant functions to solve this bug implemented.

thousep.py (text/x-python), 4.31 KB, created by severoraz on 2013-09-17 01:00:19 UTC

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Creator: severoraz

Created: 2013-09-17 01:00:19 UTC

Size: 4.31 KB

patch

obsolete

>#/usr/bin/env python
>
># Wolter Hellmund <wolterh6@gmail.com>
># CC-BY-SA
>
># This is a sample file that implements:
># a) a number format interpreter, similar to that which currently exists
># in libreoffice;
># b) a number string significant figure formatter;
># c) a number string thousand separator formatter;
># d) a short demo.
>
># Takes a string that represents a desired number format and interprets
># it. The string must have the format #+{,#+}?
>def interpret_format(formatstr):
>    sigfigs = formatstr.count('#')
>    wholefigs = formatstr.find(',')
>    return sigfigs, wholefigs
>
># Takes strings representing a number and returns a string representing
># the number with the desired sigfig configuration and an exponent.
># Parameters:
># whole: string representing the whole part of the number
># decimal: string representing the decimal part of the number (may have
># leading zeroes)
># sigfigs: amount of desired significant figures
># wholefigs: amount of desired whole significant figures. (default: no
># specification.)
>def sigfigs_str(whole, decimal, sigfigs, wholefigs=0):
>    # Unaltered scientific notation
>    exp = 0
>    exp -= len(decimal)
>    newnumber = (whole+decimal)
>    exp += len(newnumber[sigfigs:])
>    #   Compensate for short numbers
>    if sigfigs > len(newnumber):
>        sigfigs = len(newnumber)-1
>    #   Round
>    if int(newnumber[sigfigs]) >= 5:
>        newnumber = newnumber[:sigfigs-1] \
>                + str(int(newnumber[sigfigs-1])+1)
>    newnumber = newnumber[:sigfigs]
>    
>    # Applying the wholefigs
>    if wholefigs:
>        newnumber = newnumber[:wholefigs]+','+newnumber[wholefigs:]
>        exp += sigfigs-wholefigs
>    
>    # Strip zeroes to the left
>    newnumber = newnumber.lstrip('0')
>
>    # print '%s 10^%d' % (newnumber, exp)
>    return newnumber, exp
>
># Takes a string representing a number and returns a string representing
># the whole part of the number and a string representing the decimal
># part of the number.
># The number must have format [0-9]+{[.,][0-9]+}?
>def numstrsep(numstr):
>    # Returns always two items in a list
>    if '.' in numstr:
>        return numstr.split('.')[:2]
>    elif ',' in numstr:
>        return numstr.split(',')[:2]
>    else:
>        return numstr,''
>
># Takes a number and passess it to the thousep_str function.
>def thousep_num(number):
>    whole = str(int(number))
>    decimal = str(number % 1)[2:]
>    return thousep_str(whole,decimal)
>
># Takes strings representing a number and formats them with spaces as
># thousand (and thousandth) separators and a comma as the decimal
># separator.
>def thousep_str(whole,decimal):
>    # Decimal part
>    # decimal = str(number % 1)[2:] # Only decimal part, skip "0."
>    if decimal and len(decimal) > 3:
>        nts = len(decimal)/3
>        for i in range(0,nts):
>            inspos = 3*(i+1)+i
>            if decimal[inspos:] != '':
>                decimal = decimal[:inspos]+" "+decimal[inspos:]
>    # Whole part
>    # whole = str(int(number - number % 1))
>    if len(whole) > 3:
>        zn = len(whole) % 3
>        if zn > 0:
>            whole = whole[:zn]+" "+whole[zn:]
>        if len(whole) > 5:
>            nts = (len(whole)-zn)/3 - 1
>            for i in range(0,nts):
>                inspos = (zn>0)*(zn+1)+3*(i+1)+i
>                whole = whole[:inspos]+" "+whole[inspos:]
>
>    numstr = ""
>    if decimal:
>        numstr = whole+','+decimal
>    else:
>        numstr = whole
>    return numstr
>
># The demo.
># Input as first argument the number that you want to format
># Input as second argument the number format you want your number to
># have. (You may have to input the number format in quotes so the
># terminal doesn't try to interpret the # symbols.)
># Thousand separators are hard-coded to be spaces, and decimal
># separators to be commas, as the SI standards specify.
># The first line corresponds to the number with thousands separators
># inserted. The second line corresponds to the number formatted to
># its significant figures according to the format specified.
>if __name__ == '__main__':
>    import sys
>    numstr = numstrsep(sys.argv[1])
>    print "%s" % thousep_str(numstr[0], numstr[1])
>    # print "<%s>" % thousep_num(223987.345348576)
>    figs = interpret_format(sys.argv[2])
>    number = sigfigs_str(numstr[0], numstr[1], figs[0], figs[1])
>    valuestr = numstrsep(number[0])
>    print '%s 10^%d' % (thousep_str(valuestr[0], \
>            valuestr[1]), number[1])

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Attachments on bug 51008: 63017 | 85942