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b1ded1ebb493aedc4f62f71300aeb99ddbabe8bd
harbour-core/harbour/source/rtl/hbi18n.c
Przemyslaw Czerpak fa31aa6f70 2008-12-11 19:48 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/include/hbthread.h
  * harbour/source/vm/thread.c
    + added hb_atomic_set(), hb_atomic_get(), hb_atomic_inc() and
      hb_atomic_dec() functions which operates on HB_COUNTER or smaller
      type if it's necessary for some platforms which can be access/assign
      increment/decrement in MT safe atom operations.
      hb_atomic_dec() returns true if counter is 0 after decrementation

  * harbour/include/hbatomic.h
    ! fixed compilation in Linux and OpenWatcom

  * harbour/include/hbapiitm.h
  * harbour/source/rtl/itemseri.c
    + make hb_itemSerialize() and hb_itemDeserialize() public functions
    ! fixed serialization items with internal item references

  * harbour/source/vm/hvm.c
    * release memvars after closing RDDs

  * harbour/source/debug/dbgentry.c
    ! fixed buffer overflow reported by Rodrigo

  * harbour/source/vm/macro.c
  * harbour/source/compiler/hbmain.c
    * formatting

  * harbour/include/hbexprb.c
    ! fixed wrongly recognized functions with HB_I18N_ prefix as
      HB_I18N_GETTEXT()

  * harbour/include/hbapi.h
  * harbour/include/hbstack.h
  * harbour/include/hbthread.h
  * harbour/source/vm/estack.c
  * harbour/source/vm/thread.c
  * harbour/source/vm/hvm.c
    + added support for I18N in HVM.
      Each thread can have it's own i18n set.
      When new thread is created then it inherits i18n set from parent
      thread and both uses the same set (please remember about it if you
      will want to make some direct modifications on active i18n set
      internals).
      When thread change active i18n set then it effects only this thread
      and new threads which will be create later. It does not change i18n
      in other existing threads.
    + added functions to set/get pointer to active i18n set in HVM
         void * hb_vmI18N( void )
         void   hb_vmSetI18N( void * )

  * harbour/include/hbapi.h
  * harbour/source/rtl/hbi18n.c
    + added i18n module. Now only for internal Harbour usage without support
      for optional switching to alternative implementations.
      I'll add such functionality later when I will work on native gettext
      support.

      The following public .prg functions has been added:
         HB_I18N_GETTEXT[_STRICT]( <cMsgID> [, <cContext> ] )
               -> <cTranslatedMsgID> | <cMsgID>
         HB_I18N_NGETTEXT[_STRICT]( <nValue>, <cMsgID> | <acMsgID> ;
                                    [, <cContext> ] )
               -> <cTranslatedMsgID> | <cMsgID> | <acMsgID>[ <nIndex> ]
      This is minimal support necessary for .prg code which has to exists
      in each i18n module working with Harbour.

      The following functions had been added as public C API:
         PHB_ITEM hb_i18n_gettext( PHB_ITEM pMsgID, PHB_ITEM pContext )
         PHB_ITEM hb_i18n_ngettext( PHB_ITEM pNum,
                                    PHB_ITEM pMsgID, PHB_ITEM pContext )

      The following functions had been added as private HVM C API:
         void   hb_i18n_init( void )
         void   hb_i18n_exit( void )
         void   hb_i18n_release( void * cargo )
         void * hb_i18n_alloc( void * cargo )
      They have to be supported by alternative i18n modules

      The following functions has been added to manage Harbour i18n
      translations sets:

         HB_I18N_CREATE()
                  -> <pI18N>
            Creates new empty I18N translation set

         HB_I18N_CODEPAGE( [<pI18N>,] [<cNewCP>], [<lBase>], [<lTranslate>] )
                  -> <cOldCP>
            Gets or sets Harbour codepage used by translation set
            <pI18N> - I18N translation set,
                      if it's not given then currently active I18N set is used
            <cNewCP> - new CP ID. Must be linked with application
            <lBase> - when it's .T. then get/set base massages CP instead of
                      translated massages CP
            <lTranslate> - if it's .T. then translate base (<lBase>==.T.) or
                           final messages in I18N set from previous CP to
                           given one. Base messages translation in synced
                           with context ID translation.

         HB_I18N_PLURALFORM( [<pI18N>,] [<cNewForm>|<bNewForm>], [<lBase>] )
                  -> <cOldForm>|<bOldForm>
            Gets or sets plural form used for final or base messages
            <pI18N> - I18N translation set,
                      if it's not given then currently active I18N set is used
            <cNewForm> - language ID of plural form, f.e.: "EN", "PL", "LT".
                         Now only three above are supported. Please add rules
                         for other languages to source/rtl/hbi18n.c.
            <bNewForm> - codeblock used to calculate plural form indexes.
                         can be used instead of character representation but
                         it's not storred in serialized I18N set
            <lBase> - when it's .T. then get/set base massages plural form
                      instead of translated massages one.

         HB_I18N_DESCRIPTION( [<pI18N>,] [<cNewDescription>] )
                  -> <cOldDescription>
            Gets or sets translation set description. After serialization
            up to 32 bytes is stored in header which can be easy used to
            determinate type of translation file.
            <pI18N> - I18N translation set,
                      if it's not given then currently active I18N set is used
            <cNewDescription> - new description

         HB_I18N_ADDTEXT( <pI18N>, <cMsgID>, <cTrans> | <acTrans> [, <cContext> ] )
                  -> NIL
            Adds new message with translation to i18n translation set
            <pI18N> - I18N translation set
            <cMsgID> - original message
            <cTrans> - translated message
            <acTrans> - array with translated messages used for plural forms
            <cContext> - message context

         HB_I18N_SET( [ <pI18N> | NIL ] )
                  -> <lActive>
            Sets given I18N translation set as default one used by
            HB_I18N_[N]GETTEXT[_STRICT]() functions or remove translation
            set for calling thread when passed parameter is NIL
            <pI18N> - I18N translation set
            Returns logical value which is .T. when i18n set is active

         HB_I18N_SAVETABLE( [<pI18N>] )
                  -> <cTable>
            Returns I18N translation as string item which can be stored
            in file or database
            <pI18N> - I18N translation set, if it's not given then currently
                      active I18N set is used

         HB_I18N_RESTORETABLE( <cTable> )
                  -> <pI18N> | NIL
            Restores I18N translation set from strin item.
            <cTable> - I18N translation set in string representation
            On success it returns new <pI18N> set otherwise NIL if <cTable>
            is not valid item created by HB_I18N_SAVETABLE() or it's corrupted.

         HB_I18N_HEADERSIZE()
                  -> <nHeaderSize>
            Returns size of header used by i18n serialized version

         HB_I18N_CHEK( <cTable> | <cHeader> [, @<cDescription> ] )
                  -> <lValid>
            <cTable> - i18n translation set serialized by HB_I18N_SAVETABLE
            <cHeader> - header of i18n translation set
                        ( LEFT( <cTable>, HB_I18N_HEADERSIZE() )
            <cDescription> - optional parameter passed by reference where
                             will be sored i18n translation set description
                             extracted from valid header
            Returns logical value indicating if given table or header is
            valid serialized by HB_I18N_SAVETABLE() data. It does not
            decode the table though it validates size and control sums.

      These functions are optional and some future alternative implementations
      may not support all of them and/or may provide some other functions.

    + added unofficial .prg function __I18N_HASHTABLE() which allows to
      access hash table used by i18n translation set or create new translation
      set with given hash table. It's helper functions for developers which
      will work on Harbour i18n tools and should not be used by Harbour users.

      Unlike original gettext Harbour allows to use language with many
      plural forms as base one. In such case programmer should activate
      at application startup default i18n translation set with base plural
      form valid for base application language, f.e. by:
         pI18N := hb_i18n_create()
         hb_i18n_pluralForm( pI18N, <cLangID> | <bForm>, .t. )
         hb_i18n_set( pI18N )
      .prg code example:

         #xtranslate _( <x,...> ) => hb_i18n_gettext_strict( <x> )
         #xtranslate _N( <x,...> ) => hb_i18n_ngettext_strict( <x> )

         proc main()
            local pI18N, i

            pI18N := hb_i18n_create()
            hb_i18n_pluralForm( pI18N, "PL", .t. )
            hb_i18n_set( pI18N )

            for i := 0 to 30
               ? i, _N( i, {"grosz", "grosze", "groszy"} )
               if i > 0 .and. i % 10 == 0
                  wait
               endif
            next
         return

      In .pot files created during compilation by Harbour with -j option
      for above code we have the following entries for message with plural
      forms:
            msgid "grosz"
            msgid_plural "grosze"
            msgid_plural2 "groszy"
            msgstr[0] ""
      The msgid_plural2 (and others if language has more plural forms)
      is Harbour extension which is not gettext compatible.


      The above implementation is base version but should be fully functional.
      Now we will need functions to safe/read i18n files and tools to mange
      .pot files: merge them, edit translations, create final binary i18n
      translation sets. Because we are using gettext compatible .pot files
      then for some of such jobs we can use original gettext tools but we
      need at least function which will create translation set from one or
      more .pot files.
      We should also agree some default localization(s) for files containing
      translated data, their name convention and environment variable(s)
      to set default language. It's not strictly necessary and each user
      can have his own implementation but it would help in adding new
      translations by final users to any Harbour application which will
      respect them. We can use LANG envvar to extract preferred language
      and use the same path as executed application looking for files
      <appname>-<lang>.hil files though it may create some problems for
      OSes which support only 8.3 file names so we can also define that
      HB_I18N envvar has higher priority and points to expected translation
      file.

  * harbour/include/hbextern.ch
    - removed old __i18n_*() functions
    + added current i18n functions
2008-12-11 18:47:46 +00:00

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/*
* $Id$
*/
/*
* Harbour Project source code:
* I18N translation functions Harbour functions
*
* Copyright 2008 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
* www - http://www.harbour-project.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
*
* As a special exception, the Harbour Project gives permission for
* additional uses of the text contained in its release of Harbour.
*
* The exception is that, if you link the Harbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Harbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the Harbour
* Project under the name Harbour. If you copy code from other
* Harbour Project or Free Software Foundation releases into a copy of
* Harbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for Harbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#define _HB_I18N_INTERNAL_
#include "hbapi.h"
#include "hbapiitm.h"
#include "hbapierr.h"
#include "hbapicdp.h"
#include "hbmath.h"
#include "hbvm.h"
#include "hbstack.h"
#include "hbthread.h"
#include "hbchksum.h"
/*
i18n hash table items:
"LANG" => <cLangID>
"BASE_LANG" => <cLangID>
"CODEPAGE" => <cCodePage>
"BASE_CODEPAGE" => <cCodePage>
"DESCRIPTION" => <cDescription>
"PLURAL_EXP" => <cPluralExp>
"BASE_PLURAL_EXP" => <cPluralExp>
"CONTEXT" => ;
{ "" => { <cMsg> => <cResult> | <aResult> } ; // default context
[, <cContext> => { <cMsg> => <cResult> | <aResult> } ] }
i18n file format:
00-03 signature { 193, 'H', 'B', 'L' }
04-07 size of serialized i18n hash table, 32 bits in little endian order
08-11 CRC32 of serialized i18n hash table
12-15 unused
16-47 description
48-63 unused
64-.. serialized i18n hash table
*/
#define HB_I18N_HEADER_SIZE 64
#define HB_I18N_SIG_OFFSET 0
#define HB_I18N_SIG_SIZE 4
#define HB_I18N_SIZE_OFFSET 4
#define HB_I18N_CRC_OFFSET 8
#define HB_I18N_TXT_OFFSET 16
#define HB_I18N_TXT_SIZE 32
#define HB_I18N_PLURAL_EN 1
#define HB_I18N_PLURAL_PL 2
#define HB_I18N_PLURAL_LT 3
typedef struct _HB_PLURAL_FORMS
{
const char * szLangID;
int iForm;
}
HB_PLURAL_FORMS, *PHB_PLURAL_FORMS;
static const HB_PLURAL_FORMS s_plural_forms[] =
{
{ "EN", HB_I18N_PLURAL_EN },
{ "PL", HB_I18N_PLURAL_PL },
{ "LT", HB_I18N_PLURAL_LT }
};
#define HB_PLURAL_FOMRS_COUNT ( sizeof( s_plural_forms ) / sizeof( HB_PLURAL_FORMS ) )
static const UCHAR s_signature[ 4 ] = { 193, 'H', 'B', 'L' };
typedef struct _HB_I18N_TRANS
{
HB_COUNTER iUsers;
PHB_CODEPAGE cdpage;
PHB_CODEPAGE base_cdpage;
PHB_ITEM table;
PHB_ITEM context_table;
PHB_ITEM default_context;
PHB_ITEM plural_block;
PHB_ITEM base_plural_block;
int plural_form;
int base_plural_form;
}
HB_I18N_TRANS, * PHB_I18N_TRANS;
static PHB_I18N_TRANS hb_i18n_table( void )
{
return ( PHB_I18N_TRANS ) hb_vmI18N();
}
static int hb_i18n_pluralformfind( const char * szLang )
{
int i;
for( i = 0; i < ( int ) HB_PLURAL_FOMRS_COUNT; ++i )
{
if( hb_stricmp( szLang, s_plural_forms[ i ].szLangID ) == 0 )
return s_plural_forms[ i ].iForm;
}
if( strlen( szLang ) > 2 )
{
for( i = 0; i < ( int ) HB_PLURAL_FOMRS_COUNT; ++i )
{
if( hb_strnicmp( szLang, s_plural_forms[ i ].szLangID, 2 ) == 0 )
return s_plural_forms[ i ].iForm;
}
}
return 0;
}
static const char * hb_i18n_pluralformid( int iForm )
{
int i;
for( i = 0; i < ( int ) HB_PLURAL_FOMRS_COUNT; ++i )
{
if( s_plural_forms[ i ].iForm == iForm )
return s_plural_forms[ i ].szLangID;
}
return NULL;
}
static long hb_i18n_pluralindex( int iForm, PHB_ITEM pNum )
{
double n = hb_numRound( hb_itemGetND( pNum ), 10 ), n10, n100;
switch( iForm )
{
case HB_I18N_PLURAL_PL:
n10 = fmod( n, 10.0 );
n100 = fmod( n, 100.0 );
return n == 1 ? 1 : ( n10 >= 2 && n10 <= 4 &&
( n100 < 10 || n100 >= 20 ) ? 2 : 3 );
case HB_I18N_PLURAL_LT:
n10 = fmod( n, 10.0 );
n100 = fmod( n, 100.0 );
return n100 >= 10 && n100 < 20 ? 2 : ( n10 == 1 ? 1 : 3 );
case HB_I18N_PLURAL_EN:
default:
return n == 1 ? 1 : 2;
}
}
static void hb_i18n_setitem( PHB_ITEM pHash, const char * szKey, const char * szValue )
{
PHB_ITEM pKey = hb_itemPutC( NULL, szKey );
PHB_ITEM pValue = hb_itemPutC( NULL, szValue );
hb_hashAdd( pHash, pKey, pValue );
hb_itemRelease( pKey );
hb_itemRelease( pValue );
}
static PHB_ITEM hb_i18n_pluralexp_compile( PHB_ITEM pExp )
{
ULONG ulLen = hb_itemGetCLen( pExp );
PHB_ITEM pBlock = NULL;
if( ulLen > 0 )
{
char * szMacro = ( char * ) hb_xgrab( ulLen + 6 );
const char * szType;
PHB_ITEM pMacro;
szMacro[ 0 ] = '{';
szMacro[ 1 ] = '|';
szMacro[ 2 ] = 'n';
szMacro[ 3 ] = '|';
memcpy( &szMacro[ 4 ], hb_itemGetCPtr( pExp ), ulLen );
szMacro[ 4 + ulLen ] = '}';
szMacro[ 5 + ulLen ] = '\0';
pMacro = hb_itemPutCPtr( NULL, szMacro, ulLen );
szType = hb_macroGetType( pMacro );
if( *szType == 'B' )
{
hb_vmPush( pMacro );
hb_macroGetValue( hb_stackItemFromTop( -1 ), 0, 0 );
if( hb_vmRequestQuery() == 0 )
{
pExp = hb_stackItemFromTop( -1 );
if( HB_IS_BLOCK( pExp ) )
pBlock = hb_itemNew( pExp );
hb_stackPop();
}
}
hb_itemRelease( pMacro );
}
return pBlock;
}
static PHB_I18N_TRANS hb_i18n_new( void )
{
PHB_I18N_TRANS pI18N;
PHB_ITEM pKey;
pI18N = ( PHB_I18N_TRANS ) memset( hb_xgrab( sizeof( HB_I18N_TRANS ) ),
0, sizeof( HB_I18N_TRANS ) );
hb_atomic_set( &pI18N->iUsers, 1 );
pI18N->table = hb_hashNew( hb_itemNew( NULL ) );
pI18N->context_table = hb_hashNew( hb_itemNew( NULL ) );
pI18N->default_context = hb_hashNew( hb_itemNew( NULL ) );
pKey = hb_itemPutC( NULL, "CONTEXT" );
hb_hashAdd( pI18N->table, pKey, pI18N->context_table );
pKey = hb_itemPutC( pKey, "" );
hb_hashAdd( pI18N->context_table, pKey, pI18N->default_context );
hb_itemRelease( pKey );
return pI18N;
}
/* HVM init */
void hb_i18n_init( void )
{
/* do nothing in this implementation */
}
/* HVM exit */
void hb_i18n_exit( void )
{
/* do nothing in this implementation */
}
/* make copy of i18n set for new thread */
void * hb_i18n_alloc( void * cargo )
{
if( cargo )
hb_atomic_inc( &( ( PHB_I18N_TRANS ) cargo )->iUsers );
return cargo;
}
/* release i18n set when thread is terminated */
void hb_i18n_release( void * cargo )
{
if( cargo )
{
PHB_I18N_TRANS pI18N = ( PHB_I18N_TRANS ) cargo;
if( hb_atomic_dec( &pI18N->iUsers ) )
{
if( pI18N->table )
hb_itemRelease( pI18N->table );
if( pI18N->context_table )
hb_itemRelease( pI18N->context_table );
if( pI18N->default_context )
hb_itemRelease( pI18N->default_context );
if( pI18N->base_plural_block )
hb_itemRelease( pI18N->base_plural_block );
if( pI18N->plural_block )
hb_itemRelease( pI18N->plural_block );
hb_xfree( pI18N );
}
}
}
static PHB_I18N_TRANS hb_i18n_initialize( PHB_ITEM pTable )
{
PHB_I18N_TRANS pI18N = NULL;
if( HB_IS_HASH( pTable ) )
{
PHB_ITEM pKey, pContext, pDefContext = NULL, pValue;
pKey = hb_itemPutC( NULL, "CONTEXT" );
pContext = hb_hashGetItemPtr( pTable, pKey, 0 );
if( pContext )
{
pKey = hb_itemPutC( pKey, "" );
pDefContext = hb_hashGetItemPtr( pContext, pKey, 0 );
}
if( pContext && pDefContext )
{
pI18N = ( PHB_I18N_TRANS ) memset( hb_xgrab( sizeof( HB_I18N_TRANS ) ),
0, sizeof( HB_I18N_TRANS ) );
hb_atomic_set( &pI18N->iUsers, 1 );
pI18N->table = pTable;
pI18N->context_table = hb_itemNew( pContext );
pI18N->default_context = hb_itemNew( pDefContext );
pKey = hb_itemPutC( pKey, "BASE_CODEPAGE" );
pValue = hb_hashGetItemPtr( pTable, pKey, 0 );
if( pValue )
pI18N->base_cdpage = hb_cdpFind( hb_itemGetCPtr( pValue ) );
pKey = hb_itemPutC( pKey, "CODEPAGE" );
pValue = hb_hashGetItemPtr( pTable, pKey, 0 );
if( pValue )
pI18N->cdpage = hb_cdpFind( hb_itemGetCPtr( pValue ) );
pKey = hb_itemPutC( pKey, "BASE_LANG" );
pValue = hb_hashGetItemPtr( pTable, pKey, 0 );
if( pValue )
pI18N->base_plural_form = hb_i18n_pluralformfind( hb_itemGetCPtr( pValue ) );
pKey = hb_itemPutC( pKey, "LANG" );
pValue = hb_hashGetItemPtr( pTable, pKey, 0 );
if( pValue )
pI18N->plural_form = hb_i18n_pluralformfind( hb_itemGetCPtr( pValue ) );
pKey = hb_itemPutC( pKey, "BASE_PLURAL_EXP" );
pValue = hb_hashGetItemPtr( pTable, pKey, 0 );
if( pValue )
pI18N->base_plural_block = hb_i18n_pluralexp_compile( pValue );
pKey = hb_itemPutC( pKey, "PLURAL_EXP" );
pValue = hb_hashGetItemPtr( pTable, pKey, 0 );
if( pValue )
pI18N->plural_block = hb_i18n_pluralexp_compile( pValue );
}
hb_itemRelease( pKey );
}
return pI18N;
}
static PHB_ITEM hb_i18n_serialize( PHB_I18N_TRANS pI18N )
{
if( pI18N )
{
ULONG ulSize, ulCRC;
char * pBuffer = hb_itemSerialize( pI18N->table, FALSE, &ulSize );
char * pI18Nbuffer;
PHB_ITEM pKey, pValue;
ulCRC = hb_crc32( 0, ( const BYTE * ) pBuffer, ulSize );
pI18Nbuffer = ( char * ) memset( hb_xgrab( ulSize + HB_I18N_HEADER_SIZE + 1 ),
0, HB_I18N_HEADER_SIZE );
memcpy( pI18Nbuffer + HB_I18N_HEADER_SIZE, pBuffer, ulSize );
hb_xfree( pBuffer );
memcpy( pI18Nbuffer, s_signature, HB_I18N_SIG_SIZE );
HB_PUT_LE_UINT32( &pI18Nbuffer[ HB_I18N_SIZE_OFFSET ], ulSize );
HB_PUT_LE_UINT32( &pI18Nbuffer[ HB_I18N_CRC_OFFSET ], ulCRC );
pKey = hb_itemPutC( NULL, "DESCRIPTION" );
pValue = hb_hashGetItemPtr( pI18N->table, pKey, 0 );
if( pValue )
hb_strncpy( &pI18Nbuffer[ HB_I18N_TXT_OFFSET ],
hb_itemGetCPtr( pValue ), HB_I18N_TXT_SIZE );
return hb_itemPutCLPtr( pKey, pI18Nbuffer, ulSize + HB_I18N_HEADER_SIZE );
}
return NULL;
}
static BOOL hb_i18n_headercheck( const char * pBuffer, ULONG ulLen )
{
if( ulLen < HB_I18N_HEADER_SIZE )
return FALSE;
ulLen -= HB_I18N_HEADER_SIZE;
return memcmp( pBuffer, s_signature, HB_I18N_SIG_SIZE ) == 0 &&
( ulLen == 0 ||
( HB_GET_LE_UINT32( &pBuffer[ HB_I18N_SIZE_OFFSET ] ) == ulLen &&
HB_GET_LE_UINT32( &pBuffer[ HB_I18N_CRC_OFFSET ] ) ==
hb_crc32( 0, ( const BYTE * ) pBuffer + HB_I18N_HEADER_SIZE,
ulLen ) ) );
}
static PHB_I18N_TRANS hb_i18n_deserialize( PHB_ITEM pItem )
{
PHB_I18N_TRANS pI18N = NULL;
if( pItem && HB_IS_STRING( pItem ) )
{
ULONG ulLen = hb_itemGetCLen( pItem );
const char * pBuffer = hb_itemGetCPtr( pItem );
if( ulLen > HB_I18N_HEADER_SIZE && hb_i18n_headercheck( pBuffer, ulLen ) )
{
PHB_ITEM pTable;
pBuffer += HB_I18N_HEADER_SIZE;
ulLen -= HB_I18N_HEADER_SIZE;
pTable = hb_itemDeserialize( &pBuffer, &ulLen );
if( pTable )
{
pI18N = hb_i18n_initialize( pTable );
if( !pI18N )
hb_itemRelease( pTable );
}
}
}
return pI18N;
}
static HB_GARBAGE_FUNC( hb_i18n_destructor )
{
PHB_I18N_TRANS * pI18NHolder = ( PHB_I18N_TRANS * ) Cargo;
if( *pI18NHolder )
{
hb_i18n_release( ( void * ) *pI18NHolder );
*pI18NHolder = NULL;
}
}
static PHB_I18N_TRANS hb_i18n_param( int * piParam, BOOL fActive )
{
PHB_I18N_TRANS * pI18NHolder = ( PHB_I18N_TRANS * ) hb_parptrGC( hb_i18n_destructor, *piParam );
if( pI18NHolder )
{
( *piParam )++;
return *pI18NHolder;
}
return fActive ? hb_i18n_table() : NULL;
}
static PHB_ITEM hb_i18n_newitem( PHB_I18N_TRANS pI18N )
{
PHB_I18N_TRANS * pI18NHolder;
PHB_ITEM pItem = hb_itemNew( NULL );
if( !pI18N )
pI18N = hb_i18n_new();
pI18NHolder = ( PHB_I18N_TRANS * )
hb_gcAlloc( sizeof( PHB_I18N_TRANS ), hb_i18n_destructor );
*pI18NHolder = pI18N;
return hb_itemPutPtrGC( pItem, pI18NHolder );
}
static BOOL hb_i18n_getpluralform( PHB_I18N_TRANS pI18N, PHB_ITEM pOldForm,
BOOL fBase )
{
BOOL fResult = FALSE;
if( pI18N )
{
if( pOldForm )
{
PHB_ITEM pBlock;
int iForm;
if( fBase )
{
pBlock = pI18N->base_plural_block;
iForm = pI18N->base_plural_form;
}
else
{
pBlock = pI18N->plural_block;
iForm = pI18N->plural_form;
}
if( pBlock )
hb_itemCopy( pOldForm, pBlock );
else if( iForm )
hb_itemPutC( pOldForm, hb_i18n_pluralformid( iForm ) );
else
hb_itemPutC( pOldForm, "EN" ); /* default is ENGLISH */
}
fResult = TRUE;
}
return fResult;
}
static BOOL hb_i18n_setpluralform( PHB_I18N_TRANS pI18N, PHB_ITEM pForm,
BOOL fBase )
{
BOOL fResult = FALSE;
if( pI18N && pForm )
{
if( HB_IS_BLOCK( pForm ) )
{
if( fBase )
{
if( pI18N->base_plural_block )
hb_itemCopy( pI18N->base_plural_block, pForm );
else
pI18N->base_plural_block = hb_itemNew( pForm );
}
else
{
if( pI18N->plural_block )
hb_itemCopy( pI18N->plural_block, pForm );
else
pI18N->plural_block = hb_itemNew( pForm );
}
fResult = TRUE;
}
else if( HB_IS_STRING( pForm ) )
{
int iForm = hb_i18n_pluralformfind( hb_itemGetCPtr( pForm ) );
if( iForm )
{
const char * szKey;
if( fBase )
{
if( pI18N->base_plural_block )
{
hb_itemRelease( pI18N->base_plural_block );
pI18N->base_plural_block = NULL;
}
pI18N->base_plural_form = iForm;
szKey = "BASE_LANG";
}
else
{
if( pI18N->plural_block )
{
hb_itemRelease( pI18N->plural_block );
pI18N->plural_block = NULL;
}
pI18N->plural_form = iForm;
szKey = "LANG";
}
hb_i18n_setitem( pI18N->table, szKey, hb_i18n_pluralformid( iForm ) );
fResult = TRUE;
}
}
}
return fResult;
}
static const char * hb_i18n_setcodepage( PHB_I18N_TRANS pI18N,
const char * szCdpID,
BOOL fBase, BOOL fTranslate )
{
const char * szOldCdpID = NULL, * szKey;
if( pI18N )
{
PHB_CODEPAGE cdp = szCdpID ? hb_cdpFind( szCdpID ) : NULL, cdpage;
cdpage = fBase ? pI18N->base_cdpage : pI18N->cdpage;
if( cdpage )
szOldCdpID = cdpage->id;
if( cdp && cdp != cdpage )
{
if( fTranslate && cdpage )
{
ULONG ulLen = hb_hashLen( pI18N->context_table ), ul;
for( ul = 1; ul <= ulLen; ++ul )
{
PHB_ITEM pContext = hb_hashGetValueAt( pI18N->context_table, ul );
PHB_ITEM pResult;
ULONG ulCount = hb_hashLen( pContext ), u;
for( u = 1; u <= ulCount; ++u )
{
if( fBase )
{
pResult = hb_hashGetKeyAt( pContext, u );
if( HB_IS_STRING( pResult ) )
{
pResult = hb_itemUnShareString( pResult );
hb_cdpnTranslate( hb_itemGetCPtr( pResult ), cdpage, cdp,
hb_itemGetCLen( pResult ) );
}
}
else
{
pResult = hb_hashGetValueAt( pContext, u );
if( HB_IS_STRING( pResult ) )
{
pResult = hb_itemUnShareString( pResult );
hb_cdpnTranslate( hb_itemGetCPtr( pResult ), cdpage, cdp,
hb_itemGetCLen( pResult ) );
}
else if( HB_IS_ARRAY( pResult ) )
{
ULONG ulTrans = hb_arrayLen( pResult ), u2;
for( u2 = 1; u2 <= ulTrans; ++u2 )
{
PHB_ITEM pValue = hb_arrayGetItemPtr( pResult, u2 );
if( HB_IS_STRING( pValue ) )
{
pValue = hb_itemUnShareString( pValue );
hb_cdpnTranslate( hb_itemGetCPtr( pValue ), cdpage, cdp,
hb_itemGetCLen( pValue ) );
}
}
}
}
}
if( fBase )
{
pResult = hb_hashGetKeyAt( pI18N->context_table, ul );
if( HB_IS_STRING( pResult ) )
{
pResult = hb_itemUnShareString( pResult );
hb_cdpnTranslate( hb_itemGetCPtr( pResult ), cdpage, cdp,
hb_itemGetCLen( pResult ) );
}
hb_hashSetFlags( pContext, HB_HASH_RESORT );
}
}
if( fBase )
hb_hashSetFlags( pI18N->context_table, HB_HASH_RESORT );
}
if( fBase )
{
pI18N->base_cdpage = cdp;
szKey = "BASE_CODEPAGE";
}
else
{
pI18N->cdpage = cdp;
szKey = "CODEPAGE";
}
hb_i18n_setitem( pI18N->table, szKey, szCdpID );
}
}
return szOldCdpID;
}
static const char * hb_i18n_description( PHB_I18N_TRANS pI18N, PHB_ITEM pItem )
{
if( pI18N )
{
PHB_ITEM pKey = hb_itemPutC( NULL, "DESCRIPTION" ), pValue;
pValue = hb_hashGetItemPtr( pI18N->table, pKey, 0 );
if( pItem )
{
if( HB_IS_STRING( pItem ) )
{
if( pValue )
hb_itemCopy( pValue, pItem );
else
{
hb_hashAdd( pI18N->table, pKey, pItem );
pValue = hb_hashGetItemPtr( pI18N->table, pKey, 0 );
}
}
}
hb_itemRelease( pKey );
return hb_itemGetCPtr( pValue );
}
return NULL;
}
static void hb_i18n_addtext( PHB_I18N_TRANS pI18N, PHB_ITEM pMsgID,
PHB_ITEM pTrans, PHB_ITEM pContext )
{
PHB_ITEM pTable = pContext ? hb_hashGetItemPtr( pI18N->context_table,
pContext, 0 ) : pI18N->default_context;
if( !pTable )
{
pTable = hb_hashNew( hb_itemNew( NULL ) );
hb_hashAdd( pTable, pMsgID, pTrans );
hb_hashAdd( pI18N->context_table, pContext, pTable );
hb_itemRelease( pTable );
}
else
hb_hashAdd( pTable, pMsgID, pTrans );
}
PHB_ITEM hb_i18n_gettext( PHB_ITEM pMsgID, PHB_ITEM pContext )
{
PHB_I18N_TRANS pI18N = hb_i18n_table();
PHB_CODEPAGE cdpage = NULL;
if( pI18N )
{
PHB_ITEM pTable = pContext && pI18N->context_table ?
hb_hashGetItemPtr( pI18N->context_table, pContext, 0 ) :
pI18N->default_context;
cdpage = pI18N->base_cdpage;
if( pTable )
{
pTable = hb_hashGetItemPtr( pTable, pMsgID, 0 );
if( pTable )
{
if( HB_IS_ARRAY( pTable ) )
pTable = hb_arrayGetItemPtr( pTable, 1 );
if( pTable && HB_IS_STRING( pTable ) )
{
pMsgID = pTable;
cdpage = pI18N->cdpage;
}
}
}
}
if( pMsgID )
{
if( HB_IS_STRING( pMsgID ) )
{
if( cdpage )
{
PHB_CODEPAGE cdp = hb_vmCDP();
if( cdp && cdp != cdpage )
{
pMsgID = hb_itemUnShareString( pMsgID );
hb_cdpnTranslate( hb_itemGetCPtr( pMsgID ), cdpage, cdp,
hb_itemGetCLen( pMsgID ) );
}
}
}
else
pMsgID = NULL;
}
return pMsgID;
}
PHB_ITEM hb_i18n_ngettext( PHB_ITEM pNum, PHB_ITEM pMsgID, PHB_ITEM pContext )
{
PHB_I18N_TRANS pI18N = hb_i18n_table();
PHB_CODEPAGE cdpage = NULL;
PHB_ITEM pBlock = NULL;
int iPluralForm = 0;
if( pI18N )
{
PHB_ITEM pTable = pContext && pI18N->context_table ?
hb_hashGetItemPtr( pI18N->context_table, pContext, 0 ) :
pI18N->default_context;
cdpage = pI18N->base_cdpage;
pBlock = pI18N->base_plural_block;
iPluralForm = pI18N->base_plural_form;
if( pTable )
{
PHB_ITEM pMsg = HB_IS_ARRAY( pMsgID ) ?
hb_arrayGetItemPtr( pMsgID, 1 ) : pMsgID;
pTable = pMsg && HB_IS_STRING( pMsg ) ?
hb_hashGetItemPtr( pTable, pMsg, 0 ) : NULL;
if( pTable )
{
if( HB_IS_STRING( pTable ) ||
( HB_IS_ARRAY( pTable ) &&
( hb_arrayGetType( pTable, 1 ) & HB_IT_STRING ) != 0 ) )
{
pMsgID = pTable;
cdpage = pI18N->cdpage;
pBlock = pI18N->plural_block;
iPluralForm = pI18N->plural_form;
}
}
}
}
if( HB_IS_ARRAY( pMsgID ) )
{
long lIndex;
if( !pNum )
lIndex = 1;
else if( pBlock )
{
hb_evalBlock1( pBlock, pNum );
lIndex = hb_parnl( -1 );
}
else
lIndex = hb_i18n_pluralindex( iPluralForm, pNum );
if( lIndex < 1 || ( lIndex != 1 &&
( hb_arrayGetType( pMsgID, lIndex ) & HB_IT_STRING ) == 0 ) )
lIndex = 1;
pMsgID = hb_arrayGetItemPtr( pMsgID, lIndex );
}
if( pMsgID )
{
if( HB_IS_STRING( pMsgID ) )
{
if( cdpage )
{
PHB_CODEPAGE cdp = hb_vmCDP();
if( cdp && cdp != cdpage )
{
pMsgID = hb_itemUnShareString( pMsgID );
hb_cdpnTranslate( hb_itemGetCPtr( pMsgID ), cdpage, cdp,
hb_itemGetCLen( pMsgID ) );
}
}
}
else
pMsgID = NULL;
}
return pMsgID;
}
/*
* base .prg i18n functions
*/
HB_FUNC( HB_I18N_GETTEXT )
{
PHB_ITEM pMsgID = hb_param( 1, HB_IT_STRING );
PHB_ITEM pContext = hb_param( 2, HB_IT_STRING );
if( pMsgID )
pMsgID = hb_i18n_gettext( pMsgID, pContext );
if( pMsgID && HB_IS_STRING( pMsgID ) )
hb_itemReturn( pMsgID );
else
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
}
HB_FUNC( HB_I18N_NGETTEXT )
{
PHB_ITEM pNum = hb_param( 1, HB_IT_NUMERIC );
PHB_ITEM pMsgID = hb_param( 2, HB_IT_STRING | HB_IT_ARRAY );
PHB_ITEM pContext = hb_param( 3, HB_IT_STRING );
if( !pNum )
pMsgID = NULL;
else if( pMsgID )
pMsgID = hb_i18n_ngettext( pNum, pMsgID, pContext );
if( pMsgID && HB_IS_STRING( pMsgID ) )
hb_itemReturn( pMsgID );
else
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
}
HB_FUNC( HB_I18N_GETTEXT_STRICT )
{
HB_FUNC_EXEC( HB_I18N_GETTEXT );
}
HB_FUNC( HB_I18N_NGETTEXT_STRICT )
{
HB_FUNC_EXEC( HB_I18N_NGETTEXT );
}
/*
* extended .prg i18n functions to create and manage translation tables
*/
HB_FUNC( HB_I18N_CREATE )
{
hb_itemReturnRelease( hb_i18n_newitem( NULL ) );
}
HB_FUNC( HB_I18N_CODEPAGE )
{
PHB_I18N_TRANS pI18N;
int iParam = 1;
pI18N = hb_i18n_param( &iParam, TRUE );
if( pI18N )
hb_retc( hb_i18n_setcodepage( pI18N, hb_parc( iParam ),
ISLOG( iParam + 1 ) && hb_parl( iParam + 1 ),
ISLOG( iParam + 2 ) && hb_parl( iParam + 2 ) ) );
else
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
}
HB_FUNC( HB_I18N_PLURALFORM )
{
PHB_I18N_TRANS pI18N;
int iParam = 1;
pI18N = hb_i18n_param( &iParam, TRUE );
if( pI18N )
{
PHB_ITEM pOldForm = hb_itemNew( NULL );
PHB_ITEM pForm = hb_param( iParam, HB_IT_STRING | HB_IT_BLOCK );
BOOL fBase = ISLOG( iParam + 1 ) && hb_parl( iParam + 1 );
if( hb_i18n_getpluralform( pI18N, pOldForm, fBase ) )
hb_itemReturn( pOldForm );
hb_itemRelease( pOldForm );
if( pForm )
hb_i18n_setpluralform( pI18N, pForm, fBase );
}
else
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
}
HB_FUNC( HB_I18N_DESCRIPTION )
{
PHB_I18N_TRANS pI18N;
int iParam = 1;
pI18N = hb_i18n_param( &iParam, TRUE );
if( pI18N )
{
PHB_ITEM pNewDescript = hb_param( iParam, HB_IT_STRING );
hb_retc( hb_i18n_description( pI18N, NULL ) );
if( pNewDescript )
hb_i18n_description( pI18N, pNewDescript );
}
else
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
}
HB_FUNC( HB_I18N_ADDTEXT )
{
PHB_I18N_TRANS pI18N;
int iParam = 1;
pI18N = hb_i18n_param( &iParam, FALSE );
if( pI18N )
{
PHB_ITEM pMsgID = hb_param( iParam, HB_IT_STRING );
PHB_ITEM pTrans = hb_param( iParam + 1, HB_IT_STRING | HB_IT_ARRAY );
PHB_ITEM pContext = hb_param( iParam + 2, HB_IT_STRING );
if( pMsgID && pTrans )
{
if( HB_IS_ARRAY( pTrans ) )
{
ULONG ulLen = hb_arrayLen( pTrans ), ul;
if( ulLen != 0 )
{
for( ul = 1; ul <= ulLen; ++ul )
{
if( !HB_IS_STRING( hb_arrayGetItemPtr( pTrans, ul ) ) )
{
pTrans = NULL;
break;
}
}
}
else
pTrans = NULL;
}
if( pTrans )
{
hb_i18n_addtext( pI18N, pMsgID, pTrans, pContext );
return;
}
}
}
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
}
HB_FUNC( HB_I18N_SET )
{
if( hb_pcount() > 0 )
{
if( ISNIL( 1 ) )
hb_vmSetI18N( NULL );
else
{
int iParam = 1;
PHB_I18N_TRANS pI18N = hb_i18n_param( &iParam, FALSE );
if( pI18N )
hb_vmSetI18N( hb_i18n_alloc( pI18N ) );
else
{
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
return;
}
}
}
hb_retl( hb_i18n_table() != NULL );
}
HB_FUNC( HB_I18N_SAVETABLE )
{
PHB_I18N_TRANS pI18N;
int iParam = 1;
pI18N = hb_i18n_param( &iParam, TRUE );
if( pI18N )
hb_itemReturnRelease( hb_i18n_serialize( pI18N ) );
}
HB_FUNC( HB_I18N_RESTORETABLE )
{
PHB_ITEM pItem = hb_param( 1, HB_IT_STRING );
if( pItem )
{
PHB_I18N_TRANS pI18N = hb_i18n_deserialize( pItem );
if( pI18N )
hb_itemReturnRelease( hb_i18n_newitem( pI18N ) );
}
}
HB_FUNC( HB_I18N_HEADERSIZE )
{
hb_retni( HB_I18N_HEADER_SIZE );
}
HB_FUNC( HB_I18N_CHECK )
{
hb_retl( hb_i18n_headercheck( hb_parc( 1 ), hb_parclen( 1 ) ) );
}
/* unoffical function to access ineternal hash table used by i18n set */
HB_FUNC( __I18N_HASHTABLE )
{
PHB_I18N_TRANS pI18N;
if( ISHASH( 1 ) )
{
pI18N = hb_i18n_initialize( hb_param( 1, HB_IT_HASH ) );
if( pI18N )
hb_itemReturnRelease( hb_i18n_newitem( pI18N ) );
}
else
{
int iParam = 1;
pI18N = hb_i18n_param( &iParam, TRUE );
if( pI18N )
hb_itemReturn( pI18N->table );
}
}
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