From: Jeff Carlson <jfcarlson@...>
Date: 2005-10-12T05:06:52+09:00
Subject: Re: Ruby noob with a coming from Python question

Oops, I meant the *getMapFromFile* function.  If I could see the ruby 
way of writing a method to take a file of the form
key1=value1
key2=value2
etc
and easily make it into a hash in a concise way (as in the python 
example) that would be great.

Jeff Carlson wrote:
> I am very new to ruby and thought I would start with my simplest python 
> script and port it over and along the way, learn the "ruby way" of doing 
> things.  My solution so far is unsatisfactory and long.  If you have any 
> suggestions, most especially about the "ruby way" to write the file2Map 
> method, I would appreciate it and all of my future ruby programs would 
> also appreciate it.
> 
> Cheers,
> Jeff Carlson
> 
> -------------------------------------------------------------
> #!/usr/bin/python
> # print statistics for seti@home jobs
> from mx.DateTime import TimeDelta
> import sys
> 
> # this method takes a file with key/value pairs, seperated by "="
> # and makes a map of the file, keys and values, the length of the
> # map is the length of the file
> def getMapFromFile(fname):
>     lines = open(fname).readlines()
>         return dict([line.split("=") for line in lines])
> 
> # make maps of the two files
> sMap = getMapFromFile(sys.argv[1])
> uMap = getMapFromFile(sys.argv[2])
> 
> prog = float(sMap["prog"].strip())*100
> et = TimeDelta(seconds=float(sMap["cpu"].strip()))
> 
> #print results
> print '%.2f%c completed in %d:%02d:%02d' % (prog, '%', et.hour, /
>     et.minute, et.second)
> print 'units of work so far %s' % (uMap["nresults"].strip())