Re: Subscripting without temporaries

[Lloyd Zusman <ljz@xxxxxxxxxx>]

Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx> writes:

> On Apr 13,  2:00pm, DervishD wrote:
>> 
>>     I have an array containing strings of this type, one per 'slot':
>> 
>>     "Some text [particular text] Another text"
>> 
>>     For each line I want to be able to separate the three parts: the
>> 'Some text', the '[Particular text]', and the 'Another text'.
>
>>     Which is the zsh-cool-way of doing the same?
>
> Actually I think backreferences in pattern matching is a pretty cool bit
> already.
>
> However, as you can treat strings as arrays and index them by character,
> and also do slices with pairs of indices:
>
> txt="Some text [particular text] Another text"
> print -l $txt[1,$txt[(i)\[]-2] $txt[(r)\[,(R)\]] $txt[$txt[(I)\]]+2,-1]

This is cool.  But what options are necessary in order to make this
work?  The commands above produce this output for me:

  Some
  text
  [particular
  text]
  Another
  text

This is the same as what I get with this:

  print -l $txt

Thanks.

-- 
 Lloyd Zusman
 ljz@xxxxxxxxxx