def parseline(line,format):
"""\
Given a line (a string actually) and a short string telling
how to format it, return a list of python objects that result.
The format string maps words (as split by line.split()) into
python code:
x -> Nothing; skip this word
s -> Return this word as a string
i -> Return this word as an int
d -> Return this word as an int
f -> Return this word as a float
Basic parsing of strings:
>>> parseline('Hello, World','ss')
['Hello,', 'World']
You can use 'x' to skip a record; you also don't have to parse
every record:
>>> parseline('1 2 3 4','xdd')
[2, 3]
>>> parseline('C1 0.0 0.0 0.0','sfff')
['C1', 0.0, 0.0, 0.0]
"""
xlat = {'x':None,'s':str,'f':float,'d':int,'i':int}
result = []
words = line.split()
for i in range(len(format)):
f = format[i]
trans = xlat.get(f)
if trans: result.append(trans(words[i]))
if len(result) == 0: return None
if len(result) == 1: return result[0]
return result
