lstComp

"""easy string compression, based on the old compressed bitmap"""

class listComp(object):
    @staticmethod
    def compactLst(lstIn, lastOne = ''):
        if lastOne == '':
            listComp.myList = []
        if lstIn[0] != lastOne:
            #start a new acumulator
            if lastOne and listComp.myList[-1][1] == 1:
                del(listComp.myList[-1][1])
            if len(lstIn) >1: listComp.myList.append([lstIn[0], 1])
            else: listComp.myList.append([lstIn[0]])
        else:
            #increment the acumulator
            listComp.myList[-1][1] += 1
        if len(lstIn) >1:
            listComp.compactLst(lstIn[1:], lstIn[0])
        return listComp.myList

    @staticmethod
    def lstParse(lstIn):
        lstOut = []
        myMult = 1
        for myLine in lstIn:
            lineLex = []
            for codePart in myLine.split(','):
                if codePart.isdigit():
                    if lineLex and hasattr(lineLex[-1],'real'): myMult = int(codePart)
                    else: lineLex.append(int(codePart))
                else:
                    lineLex.extend(list(codePart*myMult))
                    if myMult >1: myMult = 1
            lineParse = []
            for myBit in lineLex:
                if myBit == '@':
                    lineParse.append("_/")
                else:
                    lineParse.append(" "*myBit)
            lstOut.append("".join(lineParse))
        return lstOut

lstCoded = ['14,@,14,@,6,3,@,4,@', '5,3,@,8,3,@,2,4,@,2,@,4,@,2,@,4,2,@,6,3,@', '2,@,4,@,2,@,2,2,@,8,@,6,3,@,4,@,2,@,4,@,2,@,4,@', '1,@,4,@,2,@,6,2,@,4,@,6,@,4,@,2,@,2,@,4,@,2,@,4,@', '2,3,@,2,@,2,3,@,8,2,@,2,3,@,4,@,4,2,@,6,3,@', '5,@,56,@', '@,@,54,2,@,10']

for myLine in listComp.lstParse(lstCoded):
    print myLine