Thanks for all of your suggestions. Turns out Marco's first version
was really the one I needed.
Thanks again,
t.
On Mar 26, 12:37 pm, Marco Mariani <ma...@sferacarta.com> wrote:
> Marco Mariani wrote:
> >> If the lines are really sorted, all you really need is a merge,
>
> For the archives, and for huge files where /usr/bin/diff or difflib are
> not appropriate, here it is.
>
> > #!/usr/bin/env python
>
> > import sys
>
> > def run(filea, fileb):
> > p = 3
> > while True:
> > if p&1: a = filea.readline()
> > if p&2: b = fileb.readline()
> > if not a or not b:
> > break
> > elif a == b:
> > p = 3
> > elif a < b:
> > sys.stdout.write('-%s' % a)
> > p = 1
> > elif b < a:
> > sys.stdout.write('+%s' % b)
> > p = 2
>
> > for line in filea.readlines():
> > sys.stdout.write('-%s' % line)
>
> > for line in fileb.readlines():
> > sys.stdout.write('+%s' % line)
>
> > if __name__ == '__main__':
> > run(file(sys.argv[1]), file(sys.argv[2]))
>
>
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