fish-shell/translate.c

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/** \file translate.c
Translation library, internally uses catgets
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <wchar.h>
#if HAVE_LIBINTL_H
#include <libintl.h>
#endif
#include "common.h"
#include "fallback.h"
#include "util.h"
#include "halloc_util.h"
#if HAVE_GETTEXT
/**
Number of string_buffer_t in the ring of buffers
*/
#define BUFF_COUNT 64
/**
The ring of string_buffer_t
*/
static string_buffer_t buff[BUFF_COUNT];
/**
Current position in the ring
*/
static int curr_buff=0;
/**
Buffer used by translate_wcs2str
*/
static char *wcs2str_buff=0;
/**
Size of buffer used by translate_wcs2str
*/
static size_t wcs2str_buff_count=0;
static int is_init = 0;
static void internal_destroy()
{
int i;
if( !is_init )
return;
is_init = 0;
for(i=0; i<BUFF_COUNT; i++ )
sb_destroy( &buff[i] );
free( wcs2str_buff );
}
static void internal_init()
{
int i;
is_init = 1;
for(i=0; i<BUFF_COUNT; i++ )
{
sb_init( &buff[i] );
}
halloc_register_function_void( global_context, &internal_destroy );
bindtextdomain( PACKAGE_NAME, LOCALEDIR );
textdomain( PACKAGE_NAME );
}
/**
Wide to narrow character conversion. Internal implementation that
avoids exessive calls to malloc
*/
static char *translate_wcs2str( const wchar_t *in )
{
size_t len = MAX_UTF8_BYTES*wcslen(in)+1;
if( len > wcs2str_buff_count )
{
wcs2str_buff = realloc( wcs2str_buff, len );
if( wcs2str_buff == 0 )
{
die_mem();
}
}
wcstombs( wcs2str_buff,
in,
MAX_UTF8_BYTES*wcslen(in)+1 );
return wcs2str_buff;
}
const wchar_t *wgettext( const wchar_t *in )
{
if( !in )
return in;
if( !is_init )
internal_init();
char *mbs_in = translate_wcs2str( in );
char *out = gettext( mbs_in );
wchar_t *wres=0;
sb_clear( &buff[curr_buff] );
sb_printf( &buff[curr_buff], L"%s", out );
wres = (wchar_t *)buff[curr_buff].buff;
curr_buff = (curr_buff+1)%BUFF_COUNT;
return wres;
}
#else
const wchar_t *wgettext( const wchar_t *in )
{
return in;
}
#endif