Re: script boolean operators

[Yakov Lerner]

On 4/10/07, Horvath Adam <[EMAIL PROTECTED]> wrote:

Thanks, it's really straightforward, but where is it in the manual?
http://vimdoc.sourceforge.net/htmldoc/usr_41.html - here I can not find.


Notice that usr_41.html is not all-covering. It is not a *reference*.
It is only a manual(tutorial). Details which do not appear in tutotial
(usr_NN) vimdocs
are found in the *reference* pages. You find *reference* pages by
several methods:
- by help tags completion: :help expression
- get familiar with list of reference vimdocs:
 :cd $VIMRUNTIME/doc
 :!ls
- by / search within vimdoc
- by bruteforce search through all vimdocs: :helpgrep

The relevant reference doc in this case is ':help eval' -- it covers everything
about expression evaluation. Specificallyabout && and ||:

You can find && and ||  under:

  :help expression-syntax

then 5 lines below  you have:

  |expr2|.expr3 || expr3 logical OR

  |expr3|.expr4 && expr4 logical AND

Additionally, you can notice that vim expression syntax is
rather C-like. This explains spelling of many C ops (==, &&, ||, ).

Yakov

Re: script boolean operators

[Mikolaj Machowski]

On środa 11 kwiecień 2007, Jürgen Krämer wrote:
> >
> >   normal G
> >   let numberofrows = line(".")
>
> oh, and the above two statements can also be replaced by
>
>   let numberofrows = line("$")
>

Very good advice. normal command can cause flickering of screen when
executing scripts.

m.

Re: script boolean operators

[A.J.Mechelynck]

Horvath Adam wrote:

Thanks, it's really straightforward, but where is it in the manual?

http://vimdoc.sourceforge.net/htmldoc/usr_41.html - here I can not find.


see the help topic in my post of a few minutes ago.

Rather than searching vimdoc, man or google, in Vim your first resource should 
be the online help. To learn how it works, open Vim and enter one of the 
following:


:help
:help :help
:help {subject}
:help :helpgrep

In addition, ":help pattern" tries to find a subject corresponding to the 
pattern. Hit  again for more possibilities. Or set 'wildmenu' and see 
them all on the bottom statusline (select by  and , accept by 
, abort by ). Or replace  by  and see all possible 
completions at once.




Best regards,
Tony.
--
Death is only a state of mind.

Only it doesn't leave you much time to think about anything else.

Re: script boolean operators

[A.J.Mechelynck]

Jürgen Krämer wrote:

Hi,

Horvath Adam wrote:

I can not find (manual, list-archiv, google) how to use boolean
operators (and, or) in script.

I prefer this:
if i>500 and i<1000


"boolean and" is written as "&&" and "boolean or" is written as "||". So
your example becomes

  if i>500 && i<1000.


One working solution:

normal G
let numberofrows = line(".")
normal gg
let i = 1
while i<=numberofrows
if i>500
if i<1000
" do something
endif
endif
let i += 1
endwhile

Any other way?


  normal G
  let numberofrows = line(".")


oh, and the above two statements can also be replaced by

let numberofrows = line("$")


  normal gg
  let i = 1
  while i<=numberofrows
  if i>500 && i<1000
  " do something
  endif
  let i += 1
  endwhile

Regards,
Jürgen



Best regards,
Tony.
--
In Lexington, Kentucky, it's illegal to carry an ice cream cone in your
pocket.

Re: script boolean operators

[A.J.Mechelynck]

Horvath Adam wrote:

Hi,

I can not find (manual, list-archiv, google) how to use boolean
operators (and, or) in script.

I prefer this:
if i>500 and i<1000


if (i > 500) && (i < 1000)

The parentheses are not really necessary but I use them for clarity.

see ":help expression-syntax"



One working solution:

normal G
let numberofrows = line(".")
normal gg
let i = 1
while i<=numberofrows
   if i>500
   if i<1000
   " do something
   endif
   endif


if (i > 500) && (i < 1000)
" do something
endif



   let i += 1
endwhile

Any other way?

Thanks,
Aruna



or in the exact case above,

let nrows = line(".")
let i = 501
while i <= min([999, nrows])
" do something
let i += 1
endwhile
let i = 1000


Best regards,
Tony.
--
"Hit any key to continue" is very confusing when you have two keyboards.

Re: script boolean operators

[Horvath Adam]

Thanks, it's really straightforward, but where is it in the manual?

http://vimdoc.sourceforge.net/htmldoc/usr_41.html - here I can not find.


  while i<=numberofrows
  if i>500 && i<1000
  " do something

Re: script boolean operators

[Jürgen Krämer]

Hi,

Horvath Adam wrote:
> 
> I can not find (manual, list-archiv, google) how to use boolean
> operators (and, or) in script.
> 
> I prefer this:
> if i>500 and i<1000

"boolean and" is written as "&&" and "boolean or" is written as "||". So
your example becomes

  if i>500 && i<1000.

> One working solution:
> 
> normal G
> let numberofrows = line(".")
> normal gg
> let i = 1
> while i<=numberofrows
> if i>500
> if i<1000
> " do something
> endif
> endif
> let i += 1
> endwhile
> 
> Any other way?

  normal G
  let numberofrows = line(".")
  normal gg
  let i = 1
  while i<=numberofrows
  if i>500 && i<1000
  " do something
  endif
  let i += 1
  endwhile

Regards,
Jürgen

-- 
Sometimes I think the surest sign that intelligent life exists elsewhere
in the universe is that none of it has tried to contact us. (Calvin)

script boolean operators

[Horvath Adam]

Hi,

I can not find (manual, list-archiv, google) how to use boolean
operators (and, or) in script.

I prefer this:
if i>500 and i<1000

One working solution:

normal G
let numberofrows = line(".")
normal gg
let i = 1
while i<=numberofrows
   if i>500
   if i<1000
   " do something
   endif
   endif
   let i += 1
endwhile

Any other way?

Thanks,
Aruna