try to import printf using ctypes
On Dec 2, 2007 7:49 PM, MRAB <[EMAIL PROTECTED]> wrote:
> On Dec 2, 1:35 pm, Donn Ingle <[EMAIL PROTECTED]> wrote:
> > Hi,
> > I'm sure I one read somewhere that there is a simple way to set the
> order
> > of replacements withing a string *without* using a dictionary.
> >
> > What I mean is:>>> s = "%s and %s" % ( "A", "B" )
> > >>> print s
> >
> > A and B
> >
> > Now, is there something quick like:>>> s = "%s/2 and %s/1" % ( "A", "B"
> )
> > >>> print s
> >
> > B and A
> >
> > ?
> >
> > I know it can be done with a dict:
> > d = { "one" : "A", "two" : "B" }
> > s = "%(two)s and %(one)s" % d
> >
> > \d
>
> One quick solution is to write a function for it:
>
> def format(template, values):
> import re
> # Collect the indexes from the template.
> order = map(int, re.findall(r'%\[(\d+)\]', template))
> # Remove the indexes from the template.
> template = re.sub(r'(?<=%)\[(\d+)\]', '', template)
> # Create a tuple containing the values in the correct positions.
> values = tuple(values[index] for index in order)
> return template % values
>
> >>> format("%[0]s and %[1]s", ("A", "B"))
> 'A and B'
> >>> format("%[1]s and %[0]s", ("A", "B"))
> 'B and A'
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