Re: [libreoffice-users] Find and replace - regular expressions

Hi :)
Questions are often vague.  Even where they are clear it's often
obvious the person asking the question really needs to know something
they had no idea how to ask about.  Either a shortcut route or a
"don't even try it , do this instead".  Often 3 different people can
read the same question and have 5 different ideas about how best to
answer it.

It's pretty rare for anyone to acknowledge when a question has been
solved and a "Perfect" is almost unheard of even though many of you do
give excellent answers.
Regards from
Tom :)



On 8 November 2013 06:32, Brian Barker <b.m.barker@btinternet.com> wrote:
> At 08:24 28/10/2013 +0100, Miroslaw Zalewski wrote:
> > Dnia 2013-10-28, o godz. 00:24:38 Brian Barker napisal(a):
> > > That's because your original question was not at all clear!  (You owe it
> > > to correspondents not to waste their time.)
> >
> >
> > I disagree. The question was perfectly clear.
>
>
> Thanks for this - but I'm afraid not.  The original question was "Does the
> Find & Replace dialog box allow backreferences in the 'Replace with' field?
> (I'm having trouble getting it to work.)".  No-one was able to answer it
> until the original questioner explained himself.  Were you perhaps instead
> reading his revised message?
>
> > "Backreference" is one of basic terms in regular expressions theory. If
> > you ask about regexpes, you may safely assume that your peers knows what
> > "backreference" means.
>
>
> You've latched onto "backreference" as if not understanding that was the
> substance of my comment.  But I didn't mention that.  Instead, the problem
> was that the questioner initially did not explain what problem he had with
> backreferences.  Indeed, it transpired that his problem was that he didn't
> need backreferences at all.  Backreferences are how you refer back to a
> matched string within the pattern itself, not how you refer to the same
> thing in the replacement string.  (See Wikipedia: "grouping subexpressions
> with parentheses and recalling the value they match *in the same expression*
> (backreferences)" (my emphasis).)  The user's problem was that he was
> erroneously using the syntax for backreferences in an attempt to create a
> reference in the replacement string.
>
> > Statement in parentheses applies to both sides - the one asking the
> > question as well as people who answer it.
>
>
> Well, that's certainly true.  But I cannot see how you can suggest (as you
> clearly were) that I was wasting the questioner's time.  Once he identified
> his problem, I provided an explanation which he described as "Perfect".
>
> Brian Barker
>
>
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