View hidden characters in a textfile

View hidden characters in a textfile

[fabio]

Hello,

Anyone know a tool (or c code) that allow a programmer to see hidden
characters like "\n" or "\t" or "\r\n" ?

The command cat, tr or sed can help manipulate this character to make them
visible but I wonder if there is a tool like a hex editor or something
that detailed show each character that a file contain.

Thanks,

fabio.

Re: View hidden characters in a textfile

[Håkon Hallingstad]

On Mon, Jun 27, 2005 at 12:45:09PM -0700, fabio@crearium.com wrote:
> Hello,
> 
> Anyone know a tool (or c code) that allow a programmer to see hidden
> characters like "\n" or "\t" or "\r\n" ?
> 
> The command cat, tr or sed can help manipulate this character to make them
> visible but I wonder if there is a tool like a hex editor or something
> that detailed show each character that a file contain.

hexl-mode in Emacs. It shows (e.g.) a newline '\n' as '0x0a'.

Regards,
Håkon Hallingstad
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Re: View hidden characters in a textfile

[Luiz Fernando Capitulino]

fabio@crearium.com wrote:

> The command cat, tr or sed can help manipulate this character to make them
> visible but I wonder if there is a tool like a hex editor or something
> that detailed show each character that a file contain.

hexedit:

http://freshmeat.net/projects/hexedit/

-- 
Luiz Fernando N. Capitulino

Re: View hidden characters in a textfile

[J.]

On Mon, 27 Jun 2005 fabio@crearium.com wrote:

> Hello,
> 
> Anyone know a tool (or c code) that allow a programmer to see hidden
> characters like "\n" or "\t" or "\r\n" ?
> 
> The command cat, tr or sed can help manipulate this character to make them
> visible but I wonder if there is a tool like a hex editor or something
> that detailed show each character that a file contain.
> 
> Thanks,
> 
> fabio.

The standard gnu's text-utils package features `od' .
There's also hexdump, xxd ... and a whole forest of other tools..

Possible C code, could be as basic as you want it to be..

int main(void) {
 char c;
 int i = 0;

 while((c = getchar()) != EOF) {
  printf(" \\%03o", c);
  if(i++ == 8)
   putchar('\n'), i = 0;

 }

 return 0;
}


J.

Re: View hidden characters in a textfile

[Jeff Woods]

At 6/27/2005 12:45 -0700, fabio@crearium.com wrote:
>Anyone know a tool (or c code) that allow a programmer to see hidden 
>characters like "\n" or "\t" or "\r\n" ?
>
>The command cat, tr or sed can help manipulate this character to 
>make them visible but I wonder if there is a tool like a hex editor 
>or something that detailed show each character that a file contain.

less -- AKA: the opposite of more

--
Jeff Woods <kazrak+kernel@cesmail.net>