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2004.07.11 11:47 "Re: Suggested Patch for libtiff to easify translation using gettext", by Bernd Herd
Andrey Kiselev schrieb: > On Tue, Jul 06, 2004 at 04:40:57PM +0200, Bernd Herd wrote: > > > I've done some translation of libtiff error and warning messages to > > german. > > > > extraction of libtiff messages can be done using the following command: > > > > xgettext -kTIFFError:2 -kTIFFWarning:2 *.c > > > > The resulting messages.po conatains the translatable strings. > > > > However some strings in libtiff are used with small differences > > depending on the occurence. For example: > > > > "%d: Sample out of range, max %d" > > "Sample %d out of range, max %u" > > "%lu: Sample out of range, max %lu" > > "%u: Sample out of range, max %u" > > > > The attached patch unifies these messages so they will only consume a > > single translation entry. > > > Bernd, > > Thank you, I have fixed that. > > > > The attached file de.po contains the translation strings for german. > > > Thanks too, but this is haven't too much usage in libtiff, because > gettext library is LGPL licensed, but libtiff is under less restrictive > terms. The library part of gettext is trivial. The GPLed tools are complex, but the piece of gettext that needs to be linked into the application is trivial. http://www.wxWidget.org/ contains it's own gettext library using a license with less restrictions than LGPL in C++. I've taken a look on how simple it works and write my own simple "gettext" in C within a few hours. I've reduced this to a minimum and had an implementation of the library part within a few lines. Please find atatched my own simplified gettext library for WIN32 reading Message Catalogs either from a file or from the application ressources. You'll see it is tivial. I'm willing to offer this work on the libtiff license, but I think it is pointless. It would be good to have libtiff prepared for translation, but the actual gettext implementation does not need to be included into libtiff. But I think my de.po message table is valuable for the libtiff project, since it takes a lot of people to collect a lot of translations. I'm offering the de.po file for inclusion into the libtiff distribution. The usualy gettext No-Operation is simething similar to this this: #ifdef HAVE_LIBINTL # include <libintl.h> #else # define gettext(T) (T) # define _(T) (T) #endif And in tif_win32.c: < wvsprintf(szTmp, fmt, ap); > wvsprintf(szTmp, gettext(fmt), ap); Bernd Herd :-) -- Herd Software Entwicklung Bernd Herd Kettelerstr. 35 68642 Bürstadt Germany Tel.: +49-6206-707775, Fax.: +49-6206-707776 http://www.herdsoft.com /*--------------------------------------------------------------- D A V I N C I - Dipl. Ing. Bernd Herd Grafikimport/Export FIlterbibliothek Kettelerstr. 35 68642 Bürstadt Tel./Fax: 06206/707775 (C) 2004 Bernd Herd gettext.c: My own simplified routines to use message catalogs from GNU gettext. Code derived from wxWindows 2.2 comming/intl.cpp class unter wxWindows license allowing linking of binaries without offering source code. ---------------------------------------------------------------*/ #include <windows.h> #include <stdio.h> #include "gettext.h" // Include-Datei zur Verbindung mit Applikation extern HINSTANCE hLibInstance; /// Currently active message catalog static BYTE *pData=NULL; struct catalogheader { UINT magic; // offset +00: magic id UINT revision; // +04: revision UINT numStrings; // +08: number of strings in the file UINT ofsOrigTable; // +0C: start of original string table UINT ofsTransTable; // +10: start of translated string table UINT nHashSize; // +14: hash table size UINT ofsHashTable; // +18: offset of hash table start }; struct stringentry { UINT nLen; // length of the string UINT ofsString; // pointer to the string }; /** * Try to find a translation for the given string in the current * message catalog. */ const char * gettext(const char *szOrig) { const char *result=NULL; if (szOrig != NULL && pData != NULL) { struct catalogheader *header = (struct catalogheader *) pData; struct stringentry *orig_table = (struct stringentry *) (pData + header->ofsOrigTable); struct stringentry *trans_table = (struct stringentry *) (pData + header->ofsTransTable); UINT bottom = 0; UINT top = header->numStrings; UINT current; while ( bottom < top && result==NULL) { current = (bottom + top) / 2; int res = strcmp(szOrig, pData + orig_table[current].ofsString); if ( res < 0 ) { top = current; } else if ( res > 0 ) { bottom = current + 1; } else { // found! result = pData + trans_table[ current ].ofsString; } } } return result!=NULL ? result : szOrig; } /** *(try to) load the message catalog with the given file name */ #ifdef DAVINCI_PRO static void loadmo_file(const char *filename) { FILE *fin; if (NULL != (fin=fopen(filename, "rb"))) { int size; fseek(fin, 0, SEEK_END); size = ftell(fin); fseek(fin, 0, SEEK_SET); if (NULL!=(pData = malloc(size))) { fread(pData, size, 1, fin); } fclose(fin); } } #endif /** * (try to) Load a message catalog, either from the program ressources, * or from a .mo file. * * @param lang Language specifier. See http://support.microsoft.com/default.aspx?scid=kb;en-us;102978 */ void loadmo(const char *lang) { HRSRC hrsrc; HGLOBAL hg; if (NULL!=(hrsrc=FindResource(hLibInstance, lang, "mo")) && NULL!=(hg=LoadResource(hLibInstance, hrsrc))) { pData = (LPBYTE) LockResource(hg); } #ifdef DAVINCI_PRO else { char filename[MAX_PATH]; char *p; GetModuleFileName(hLibInstance, filename, sizeof(filename)-20); p=strrchr(filename, '\\'); if (p) { strcpy(p+1, lang); strcat(p, ".mo"); loadmo_file(filename); } } #endif } static void translate_windowtext(HWND hwndControl) { char szText[1000]; if (GetWindowText(hwndControl, szText, sizeof(szText))) { const char *translation = gettext(szText); if (translation != szText) { SetWindowText(hwndControl, translation); } } } /** * Translate a dialog window. * * Iterate through all the controls in the dialog and translate * using the gettext approach. * * @param hwndDialog Window handle of the dialog to be translated */ void translate_dialog(HWND hwndDialog) { HWND hwndControl; translate_windowtext(hwndDialog); for (hwndControl = GetWindow(hwndDialog, GW_CHILD); hwndControl; hwndControl = GetWindow(hwndControl, GW_HWNDNEXT)) { translate_windowtext(hwndControl); } } /*--------------------------------------------------------------- D A V I N C I - Dipl. Ing. Bernd Herd Grafikimport/Export FIlterbibliothek Kettelerstr. 35 68642 Bürstadt Tel./Fax: 06206/707775 (C) 2004 Bernd Herd gettext.c: My own simplified routines to use message catalogs from GNU gettext. Code derived from wxWindows 2.2 comming/intl.cpp class unter wxWindows license allowing linking of binaries without offering source code. ---------------------------------------------------------------*/ #ifndef gettext_h #define gettext_h #ifdef __cplusplus extern "C" { #endif // Internationalization support const char *gettext(const char *sz); void loadmo(const char *filename); void translate_dialog(HWND hwndDialog); #define _(T) gettext((T)) #ifdef __cplusplus } #endif #endif