RegExps - laatste loodjes

[Floris Lambrechts]

Mijn vertaling is af, maar nog een paar dingetjes ik niet. Kan iemand (met
ervaring in reguliere expressies) eens uitleggen wat hier bedoeld wordt aub?

===============
To do editing you will need an editor like vi, emacs or you can use e.g perl. 
In emacs you use M-x query-replace-regexp or you can put the
query-replace-regexp command on some function key. Alternatively you can also
use the command replace-regexp. The query-replace-regexp is interactive, the
other not.  In vi the substitution command :%s/ / /gc is used. The percent
refers to the ex-range 'whole file' and can be replaced by any appropriate
range. E.g in vim you type shift-v, mark an area and then use the substitution
on that area only.
================
 ?? => (vi) ex-range 'whole file' 

================
(Hier moeten de spaties worden verwijderd die op het begin van de regel staan)
3412     Bob 123
     3834   Jonny 333
12248   Kate 634
14223   Tony 567
 2567   Peter 435
3567   Alice 535
   15248  Kerry 534

This should correct it:
vi:     s/^  *//  (There is 2 spaces as we do not have a +)
emacs:  '^ +'  replaced by the empty string 
perl:   perl -pe 's/^ +//' phonelist.txt
==================

?? =>  There is 2 spaces as we do not have a +

Ik denk dat dit betekent dat je 2 spaties moet gebruiken omdat het + hier niiet
zou werken (in vi dus)?


===================
There are also more special characters like e.g the alteration 
===================
??=> wat is dat, alteration?




Bedankt
Floris
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