Re: Translate printf("Hallo")

[Beco <rcb@beco.cc>]

On 1 October 2013 19:03, Boris Pek <tehnick-8@yandex.ru> wrote:
> Hi,
>
[snip]
>
> $ env | grep LANG
> $ env | grep LC_
>
> And search in google (or etc.) these environmental variables.
>
>> How can I see it in the original form?
>


> Try something like this:
> $ LC_ALL=C hallowelt
> or this:
> $ export LC_ALL=C
> $ hallowelt
>
> Best wishes,
> Boris




Hi Boris, hi guys,

Thanks for the tip. Its looking very professional. :)

Now, I've made some modifications and I'm having trouble in adding a
third language.

For the record, look this HOW-TO I'm doing. (I'll state the problem in the end)

/* ------------------- BEGIN OF FILE hallowelt.c ----------------- */

/*
 *  MINI-HOWTO to translate printf messages using gettext
 *  By Dr. Beco, (C) 2013, GNU/GPL License.
 */

#include <libintl.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>

int main(int argc, char **argv) /* changed in ver.2 from: int main(void) */
{
  setlocale( LC_ALL, "" );
  bindtextdomain( "hallo", "/home/beco/Documents/fontes/cpp/teste/ctranslate" );
  textdomain( "hallo" );

/* added to ver.2 */  if(argc!=2)
/* added to ver.2 */  {
/* added to ver.2 */    if(argc==3)
/* added to ver.2 */      setenv ("LANGUAGE", argv[1], 1);
/* added to ver.2 */    printf(gettext("verwenden: %s LA [-h]\nwo LA =
pt, en oder C\n"), argv[0]);
/* added to ver.2 */    exit(1);
/* added to ver.2 */  }
/* added to ver.2 */  setenv ("LANGUAGE", argv[1], 1);

  printf(gettext("Hallo, welt!\n"));
  exit(0);
}

/*
--------------------------------------------------------
Create the directory:
$mkdir -p en/LC_MESSAGES

Type program above (just ver.1), then get a binary with
$gcc -o hallowelt hallowelt.c
================> hallowelt <================

and I get a template with
$xgettext -d hallo -s -o hallowelt.pot hallowelt.c
================> hallowelt.pot <================

Create a "po" to have a translation to some language
$msginit -l en_US -o en_US-hallowelt.po -i hallowelt.pot
================> en_US-hallowelt.po <================

Edit the "po" file! Then, compile the po to a mo file
$msgfmt -c -v -o hallo.mo en_US-hallowelt.po
================> hallo.mo <================

Copy it to the correct location
$cp hallo.mo ./en/LC_MESSAGES
And its ready. Run it!
================> $ LANG=C ; ./hallowelt <================
Hallo, welt!
================> $ LANG=en_US.UTF8 ; ./hallowet <================
Hello, world!

---------------------------------------------------------

Have you upgraded the program to ver.2, then get a binary with
$gcc -o hallowelt hallowelt.c
================> hallowelt <================

First, extract the new template
$xgettext -d hallo -s -o hallowelt-neue.pot hallowelt.c
================> hallowelt-neue.pot <================

Update the "po" file merging it with the new template
$msgmerge -s -U en_US-hallowelt.po hallowelt-neue.pot
================> en_US-hallowelt.po <================

Edit the "po" file! Then, compile the po to a mo file
$msgfmt -c -v -o hallo.mo en_US-hallowelt.po
================> hallo.mo <================

Copy it to the correct location
$cp hallo.mo en/LC_MESSAGES
And its ready. Run it! (suppose your LANG=en_US.UTF8)
================> $ ./hallowet C -h <================
verwenden: ./hallowelt LA [-h]
wo LA = pt, en oder C
================> $ ./hallowelt en -h <================
usage: ./hallowelt LA [-h]
where LA = pt, en or C
================> $ ./hallowelt <================
usage: ./hallowelt LA [-h]
where LA = pt, en or C
================> $ ./hallowelt en <================
Hello, world!
================> $ ./hallowelt C <================
Hallo, welt!

---------------------------------------------------------
Want a third language?
Create the directory:
$mkdir -p pt/LC_MESSAGES

Then first create a new po with:
$msginit -l pt_BR -o pt_BR-hallowelt.po -i hallowelt-neue.pot
================> pt_BR-hallowelt.po <================

Edit the "po" file! Then, compile all po's to a mo file
$msgfmt -c -v -o hallo.mo en_US-hallowelt.po pt_BR-hallowelt.po
================> hallo.mo <================

Copy it to the correct location
$cp hallo.mo ./pt/LC_MESSAGES
And its ready. Run it!
================> $ ./hallowelt pt <================
Ola, mundo!
================> $ ./hallowelt pt -h <================
uso: ./hallowelt LA [-h]
onde LA = pt, en ou C

---------------------------------------------------------

*/

/* ------------------- END OF FILE hallowelt.c ----------------- */


Now, after I run the command:

$ msgfmt -c -v -o hallo.mo en_US-hallowelt.po pt_BR-hallowelt.po

I get this fatal errors:

pt_BR-hallowelt.po:6: duplicate message definition...
en_US-hallowelt.po:7: ...this is the location of the first definition
pt_BR-hallowelt.po:22: duplicate message definition...
en_US-hallowelt.po:23: ...this is the location of the first definition
pt_BR-hallowelt.po:27: duplicate message definition...
en_US-hallowelt.po:30: ...this is the location of the first definition
msgfmt: pt_BR-hallowelt.po: warning: PO file header missing or invalid
                            warning: charset conversion will not work
msgfmt: found 4 fatal errors


I've no luck in finding a tutorial on how to add a third language.
Anyone had done this before?


--------

Second small question:
It seems that adding

#define _( String ) gettext( String )

breaks xgettext

Is there any trick to get it working with the define?


Thanks!

Beco.




-- 
Dr Beco
A.I. researcher

"Sometimes the heart sees what is invisible to the eye." (H. Jackson Brown Jr.)