On Aug 5, 2006, at 11:01 AM, Ronald J Kimball wrote:
On Sat, Aug 05, 2006 at 03:37:29PM +0100, Ben Dougall wrote:
On Saturday, August 5, 2006, at 03:27 pm, David Livesay wrote:
On Aug 5, 2006, at 10:19 AM, David Livesay wrote:
I would never ask anyone to write Perl. You can do this with
Find/Replace using regular expressions, which are bad enough. ;-)
Search for: (\d+)(\t)(.+\r)(\t)(.+\r)(\t)(.+\r)
Replace with: \1\2\3\1\4\5\1\6\7
Make sure "Use Grep" is checked.
If it doesn't work I may need to see part of the actual file. This
worked on your example.
Actually, this can be simplified a little:
Search for: (\d+)(\t.+\r)(\t.+\r)(\t.+\r)
Replace with: \1\2\1\3\1\4
a reoccurring problem i find with regex is a seeming
deficiency/inability to deal with varying number of things. what
happens if the requirement given was:
[snip]
is that doable with regex? that sort of thing often stumps me.
No, you cannot solve that problem with a single Find/Replace. You can
match the lines all at once, but you can't get back all the chunks
you want
to keep. The best you could do is create a regex that fixes just
the first
line in each group, then apply it over and over until all the lines
have
been updated.
This is why it's beneficial to be able to use a programming
language such
as Perl.
Or a scripting language such as AppleScript. Or a scripting language
such as Python. I've been able to get through life without ever
having to resort to Perl.
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