strange behaviorof replace-regexp on win xp

strange behaviorof replace-regexp on win xp

[renato.pontefice]

Hi,
I'm using the replace-regexp on win XP.
I need to replace some "tab" with null char.

I do:
--replace-regexp
---\\tab (in when it ask me wich char to replace)
----RETURN (to insert nothing in the replace)

emacs find about 96 replacement.

Then, I open the file with MS word, and I find that emacs, replace the tab, with space.
I want that it replace with null char, not space.

Can it be a win prob.?

TIA

Renato

Re: strange behaviorof replace-regexp on win xp

[renato.pontefice]

Il giorno giovedì 7 agosto 2014 11:23:02 UTC+2, renato.p...@gmail.com ha scritto:
> Hi,
> 
> I'm using the replace-regexp on win XP.
> 
> I need to replace some "tab" with null char.
> 
> 
> 
> I do:
> 
> --replace-regexp
> 
> ---\\tab (in when it ask me wich char to replace)
> 
> ----RETURN (to insert nothing in the replace)
> 
> 
> 
> emacs find about 96 replacement.
> 
> 
> 
> Then, I open the file with MS word, and I find that emacs, replace the tab, with space.
> 
> I want that it replace with null char, not space.
> 
> 
> 
> Can it be a win prob.?
> 
> 
> 
> TIA
> 
> 
> 
> Renato

I had an idea:
could it be a prob of coding?
I mean: the file is coded as MS-DOS, could it be this the prob?
and if yes:
- wich isthe code that in MS-DOS coding, represent the nul space?

Re: strange behaviorof replace-regexp on win xp

[Robert Thorpe]

renato.pontefice@gmail.com writes:

> Hi,
> I'm using the replace-regexp on win XP.
> I need to replace some "tab" with null char.
>
> I do:
> --replace-regexp
> ---\\tab (in when it ask me wich char to replace)
> ----RETURN (to insert nothing in the replace)
>
> emacs find about 96 replacement.
>
> Then, I open the file with MS word, and I find that emacs, replace the
> tab, with space.

It shouldn't do that.  It should replace the tab with nothing at all, so
if you have "x  y" (there's a tab there) it should become "xy".  Are you
sure it hasn't done that and you just didn't notice because the tabs
generally had spaces at one side?  Tabs you type in Emacs are often
converted to spaces, TAB usually mean "indent" in Emacs.

> I want that it replace with null char, not space.

Type C-x 8 RET NULL RET in any buffer.  Now you have the NULL character,
cut it into the kill ring.  Then do:-
-- replace-string
--- TAB (press tab)
--- C-y (which will yank the null character).

There are probably better ways to do it.

BR,
Robert Thorpe