Re: delete double lines

Re: delete double lines

[Pascal Bourguignon]

<C.Strobl@dlr.de> writes:

> hello all,
>
>  
>
> is there any solution for delete double lines with emacs commands (or macros)?
>
>  
>
> f.g.
>
>  
>
> line1
>
> line1
>
> line2
>
> line1
>
> line2
>
>  
>
> shall be processed to
>
>  
>
> line1
>
> line2
>
>  
>
>  
>
> thanks and greetings from munich

>From emacs, I would select the range of lines, then type:

C-u M-|   sort -u | sed -n -e p -e 's/.*//p'  RET


If you want a pure emacs solution:

(require 'cl)
(defun sort-unique-lines-with-double-spacing (start end)
  (interactive "r")
  (save-excursion
    (goto-char start)
    (let ((lines '()))
      (while (and (< (point) end) (re-search-forward "^\\(.*\\)$" end t))
        (push (buffer-substring (match-beginning 0) (match-end 0)) lines))
      (message "%S" lines)
      (delete-region start end)
      (dolist (line (sort (delete-duplicates lines :test (function string=))
                          (function string-lessp)))
        (insert (format "%s\n\n" line))))))


Then you can select the range of lines, 
and type M-x sort-unique-lines-with-double-spacing RET

-- 
__Pascal Bourguignon__                     http://www.informatimago.com/

HEALTH WARNING: Care should be taken when lifting this product,
since its mass, and thus its weight, is dependent on its velocity
relative to the user.

delete double lines

[C.Strobl]

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hello all,
 
is there any solution for delete double lines with emacs commands (or
macros)?
 
f.g.
 
line1
line1
line2
line1
line2
 
shall be processed to
 
line1
line2
 
 
thanks and greetings from munich
christian

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Re: delete double lines

[Peter Dyballa]

Am 11.08.2006 um 12:41 schrieb <C.Strobl@dlr.de>:

> is there any solution for delete double lines with emacs commands  
> (or macros)?
>

What about shell-command-on-region? And the shell command is 'sort -u'.

--
Mit friedvollen Grüßen

   Pete

“Computers are good at following instructions, but not at reading  
your mind.”
    - D. E. Knuth, The TeXbook, Addison-Wesley 1984, 1986, 1996, p. 9

Re: delete double lines

[Chris McMahan]

M-x sort-lines to get the same results.

If you only want to sort part of the buffer, just highlight the region
you want sorted and execute the same function.

I use this quite frequently!

- Chris

Peter Dyballa <Peter_Dyballa@Web.DE> writes:

> Am 11.08.2006 um 12:41 schrieb <C.Strobl@dlr.de>:
>
>> is there any solution for delete double lines with emacs commands
>> (or macros)?
>>
>
> What about shell-command-on-region? And the shell command is 'sort -u'.
>
> --
> Mit friedvollen Grüßen
>
>   Pete
>
> “Computers are good at following instructions, but not at reading
> your mind.”
>    - D. E. Knuth, The TeXbook, Addison-Wesley 1984, 1986, 1996, p. 9

-- 
     (.   .)
  =ooO=(_)=Ooo=====================================
  Chris McMahan | first_initiallastname@one.dot.net
  =================================================

Re: delete double lines

[Chris McMahan]

Oops! sort-lines doesn't uniquify...

Cygwin has a sort function that handles the -u switch, but it means
installing the entire cygwin environment.

- Chris

Chris McMahan <first_initiallastname@one.dot.net> writes:

> M-x sort-lines to get the same results.
>
> If you only want to sort part of the buffer, just highlight the region
> you want sorted and execute the same function.
>
> I use this quite frequently!
>
> - Chris
>
> Peter Dyballa <Peter_Dyballa@Web.DE> writes:
>
>> Am 11.08.2006 um 12:41 schrieb <C.Strobl@dlr.de>:
>>
>>> is there any solution for delete double lines with emacs commands
>>> (or macros)?
>>>
>>
>> What about shell-command-on-region? And the shell command is 'sort -u'.
>>
>> --
>> Mit friedvollen Grüßen
>>
>>   Pete
>>
>> “Computers are good at following instructions, but not at reading
>> your mind.”
>>    - D. E. Knuth, The TeXbook, Addison-Wesley 1984, 1986, 1996, p. 9

-- 
     (.   .)
  =ooO=(_)=Ooo=====================================
  Chris McMahan | first_initiallastname@one.dot.net
  =================================================