def strToComplex(xStrIn):
    #By D@CC
    #On 2021 E May 19
    #Article: 164.html  selectCode 10
    #uSD: none
    #
    #Functions Used:
    # type()
    # .index
    # int()
    # complex()
    #Limitation: only works with integers

    numErr="3.14+3.14j"
    sType=type(xStrIn)
    #print("sType:",sType)
    #isLeft=False
    try:
        posLeft=xStrIn.index("(")
        if posLeft>0 :
            print("err 09: ( not first char")
            return numErr
        else:
            isLeft=True
        #end if
    except:
        #no Left (
        isLeft=False
    #end try
    if isLeft :
        #get right
        try:
            posRight=xStrIn.index(")")
            isRight=True
        except:
            #no Left (
            isRight=False
        #end try
        if isRight==False :
            print("err 28:left ( but no Right )")
            return numErr
        else:
            #elim both parens
            xStr=xStrIn[1:len(xStrIn)-1]
            #print("new xStr:",xStr)
        #end if
    else:
        xStr=xStrIn
    #end if
    #                 print("xStr used as is")
    try:
        posPlus=xStr.index("+")
    except:
        isPlus=False
        posPlus=0
    #end try
    #print("posPlus:", posPlus)
    #find any "j"
    posJ=0
    try:
        posJ=xStr.index("j")
        isFoundJ=True 
    except:
        isFoundJ=False
    #end try
    if isFoundJ==False:
        try:
            posCapJ=xStr.index("J")
            posJ=posCapJ
            isFoundJ=True
        except:
            isFoundJ=False
        #end try
    if isFoundJ==False:
        print("warning: no j")
        #return Null
        posJ=0
    #end if
    #print("posJ:",posJ)
    #return
    
    #posPlus is 0 if no +
    #posJ is 0 if no J
    realStr=""
    if posPlus>0:
        realStr=xStr[0:posPlus]
    else:
        # later we must do this
        #if there is no J :
        #realStr=xStr[0:len(xStr)] #err
        #is there no J
        
        realStr="0"
    #end if
    #print("realStr:",realStr)
    imagStr=""
    if posJ>0:
        #print("check indices here")
        #print("posPlus:",posPlus)
        if posPlus>0:
            imagStr=xStr[posPlus+1:len(xStr)-1]
            #print("imagStr:",imagStr)
        else:
            imagStr=xStr[0:len(xStr)-1]
            #print("imagStr:",imagStr)
        #end if
    else:
        #posJ=0 so there is no imaginary component
        imagStr="0"
        # we can now get the value of realStr
        realStr=xStr[0:len(xStr)]
    #end if
    #print("imagStr:",imagStr)
    #print("fut: allow for float complex")
    #return
    try:
        real=int(realStr)
    except:
        print("err 107:bad input format eg ) not last char")
        return numErr
    #end try
    #print("real:",real)
    try:
        imag=int(imagStr)
    except:
        print("err 114: bad input format eg ) not last char")
        return numErr
    #end try
    #print("imag:",imag)
    xComplex=complex(real,imag)
    cType=type(xComplex)
    #print("cType:",cType)
    #xComplex=1+xComplex
    return xComplex
#/strToComplex_pico.py