23666Re: [Clip] Trivial clip
- Feb 18, 2013Actually Ian, John has it correctly though I probably would have done it
the way you suggest.
The \K escape sequence erases anything that has been found up to the
place it appears but leaves any previously established groups available
for use in replacement.
from Google [pcre escape sequence "\K"]
I know what follows is somewhere(?) in Notetab - Help - Help on Regular
Expressions but its hard to search for \K
Look-ahead and look-behind assertions
Patterns may assert that previous text or subsequent text contains a
pattern without consuming matched text (zero-width assertion). For
example, /\w+(?=\t)/ matches a word followed by a tab, without
including the tab.
Look-behind assertions cannot be of uncertain length.
Since version 7.2, \K can be used in a pattern to reset the start of
the current whole match. This provides a flexible alternative
approach to look-behind assertions because the discarded part of the
match (the part that precedes \K) need not be fixed in length.
FWIW: I tested it just to be sure - if you use the Replace dialog and
step through with [Find] you see nothing apparently selected but each
[Replace] doubles the line. (Thx Flo, I think for finally ramming \K
usage through my head - once grokked it can prove very useful)
On 2013-02-18 23:19, Ian NTnerd wrote:
> I'm no ReGex expert but shouldn't there be two $1 in the output. I think
> it is just a typo and he meant,
> ^!Replace "^(.+)\K$" >> "$1\x20$1" ARSW
> No time to test it.
> On 19/02/2013 7:55 AM, John Shotsky wrote:
> > The following should do what you request:
> > ^!Replace "^(.+)\K$" >> "\x20$1" ARSW
Regards ... Alec (buralex@gmail & WinLiveMess - alec.m.burgess@skype)
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