for parsing headers with two lines.. I need this when parsing the output of iozone tests..

twolineheaders.py

def split_with_location(line, separator=None):
    temp = {}
    t = line.strip()
    finished = False
    loc = 0
    while len(t) > 0:
        if separator is not None:
            word = t.split(separator)[0]
        else:
            word = t.split()[0]
        loc = line.find(word,loc)        
        temp[loc] = word
        loc = loc + len(word)
        t = line[loc:].strip()
    return temp

def two_line_headers(line1,line2):
    up = split_with_location(line1)
    dn = split_with_location(line2)
    newdn = dn
    for loc2 in sorted(dn.keys()):
        for loc1 in sorted(up.keys()):
            if overlap(loc2, loc2 + len(dn[loc2]), loc1, loc1 + len(up[loc1])):
                newdn[loc2] =  up[loc1] +" "+  dn[loc2]
                break
    return newdn

def overlap(x1,x2, y1,y2):
    res =False
    if (x1 > y2) or (x2 < y1):
        return False
    return True
        
s1 = "                                                             random    random     bkwd    record    stride                               "
s2 = "             kB  reclen    write  rewrite    read    reread    read     write     read   rewrite      read   fwrite frewrite    fread  freread   "

headers = two_line_headers(s1,s2)
for k,v in sorted(headers.items()):
    print(k,v)