]> code.citadel.org Git - citadel.git/blobdiff - webcit/gettext.c
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[citadel.git] / webcit / gettext.c
index 29a3ea98e823d38e92bc5a3920628d5ebfa86589..0243c7b703b10796c53b79518578247d155fde7f 100644 (file)
 
 #ifdef ENABLE_NLS
 
-static const char *AvailLang[] = {
-       "de_DE"
+#define NUM_LANGS 4
+#define SEARCH_LANG 20
+
+char *AvailLang[NUM_LANGS] = {
+       "C",
+       "en_US",
+       "de_DE",
+       "it_IT"
 };
 
-/* TODO: we skip the language weightening so far. */
+locale_t wc_locales[NUM_LANGS];
+
+typedef struct _lang_pref{
+       char lang[16];
+       char region[16];
+       long priority;
+       int availability;
+       int selectedlang;
+} LangStruct;
+
+/* seems as most browsers just do a one after coma value even if more than 10 locales are available. */
+/* opera: */
+/* Accept-Language: sq;q=1.0,de;q=0.9,as;q=0.8,ar;q=0.7,bn;q=0.6,zh-cn;q=0.5,kn;q=0.4,ch;q=0.3,fo;q=0.2,gn;q=0.1,ce;q=0.1,ie;q=0.1 */
+/* Firefox */
 /* Accept-Language: 'de-de,en-us;q=0.7,en;q=0.3' */
-void httplang_to_locale(const char *LocaleString)
+/* Accept-Language: de,en-ph;q=0.8,en-us;q=0.5,de-at;q=0.3 */
+/* Accept-Language: de,en-us;q=0.9,it;q=0.9,de-de;q=0.8,en-ph;q=0.7,de-at;q=0.7,zh-cn;q=0.6,cy;q=0.5,ar-om;q=0.5,en-tt;q=0.4,xh;q=0.3,nl-be;q=0.3,cs;q=0.2,sv;q=0.1,tk;q=0.1 */
+
+void httplang_to_locale(char *LocaleString)
 {
-       char *locale = "C";
-       char *wanted_locales[10];
+       LangStruct wanted_locales[SEARCH_LANG];
+       LangStruct *ls;
+
        int i = 0;
        int j = 0;
        size_t len = strlen(LocaleString);
-       int nFound = 0;
-       int nAvail = 1;
+       long prio;
+       int av;
+       int nBest;
+       int nParts;
        char *search = (char *) malloc(len);
-       int done = 0;
-       //      char *mo;
-       //      char *webcitdir = WEBCITDIR;
-       locale_t my_Locale;
-       locale_t my_Empty_Locale;
+       // locale_t my_Locale;
+       // locale_t my_Empty_Locale;
+       
        memcpy(search, LocaleString, len);
-       search[len + 1] = '\0';
-       len = strlen(search);
-       /* the web browser sends '-', we need '_' */
-       for (i = 0; i < len; i++)
-               if (search[i] == '-')
-                       search[i] = '_';
-       i = 0;
-       while ((search[i] != '\0') && !done && (nFound < 10)) {
-               if ((search[i] == ',') || (search[i] == ';'))
+       search[len] = '\0';
+       nParts=num_tokens(search,',');
+       for (i=0; ((i<nParts)&&(i<SEARCH_LANG)); i++)
+        {
+                       char buf[16];
+                       char sbuf[16];
+                       char lbuf[16];
+                       int blen;
+                       
+                       ls=&wanted_locales[i];
+
+                       extract_token(&buf[0],search, i,',',16);
+                       /* we are searching, if this list item has something like ;q=n*/
+                       if (num_tokens(&buf[0],'=')>1) {
+                               int sbuflen, k;
+                               extract_token(&sbuf[0],&buf[0], 1,'=',16);
+                               sbuflen=strlen(&sbuf[0]);
+                               for (k=0; k<sbuflen; k++) if (sbuf[k]=='.') sbuf[k]='0';
+                               ls->priority=atol(&sbuf[0]);
+                       }
+                       else {
+                               ls->priority=1000;
+                       }
+                       /* get the locale part */
+                       extract_token(&sbuf[0],&buf[0],0,';',16);
+                       /* get the lang part, which should be allways there */
+                       extract_token(&ls->lang[0],&sbuf[0],0,'-',16);
+                       /* get the area code if any. */
+                       if (num_tokens(&sbuf[0],'-')>1) {
+                               extract_token(&ls->region[0],&sbuf[0],1,'-',16);
+                       }
+                       else { /* no ara code? use lang code */
+                               blen=strlen(&ls->lang[0]);
+                               memcpy(&ls->region[0], ls->lang,blen);
+                               ls->region[blen]='\0';
+                       } /* area codes are uppercase */
+                       blen=strlen(&ls->region[0]);
+                       for (j=0; j<blen; j++)
+                               {
+                                       int chars=toupper(ls->region[j]);
+                                       ls->region[j]=(char)chars;/* \todo ?! */
+                               }
+                       sprintf(&lbuf[0],"%s_%s",&ls->lang[0],&ls->region[0]);
+                       
+                       /* check if we have this lang */
+                       ls->availability=1;
+                       ls->selectedlang=-1;
+                       for (j=0; j<NUM_LANGS; j++) {
+                               int result;
+                               /* match against the LANG part */
+                               result=strcasecmp(&ls->lang[0], AvailLang[j]);
+                               if ((result<0)&&(result<ls->availability)){
+                                       ls->availability=result;
+                                       ls->selectedlang=j;
+                               }
+                               /* match against lang and locale */
+                               if (0==strcasecmp(&lbuf[0], AvailLang[j])){
+                                       ls->availability=0;
+                                       ls->selectedlang=j;
+                                       j=NUM_LANGS;
+                               }
+                       }
+        }
+       
+       prio=0;
+       av=-1000;
+       nBest=-1;
+       for (i=0; ((i<nParts)&&(i<SEARCH_LANG)); i++)
                {
-                       if (search[i] == ';')
-                               done = 1;
-                       search[i] = '\0';
-                       wanted_locales[nFound] = (char *) &search[j];
-                       j = i + 1;
-                       nFound++;
+                       ls=&wanted_locales[i];
+                       if ((ls->availability<=0)&& 
+                               (av<ls->availability)&&
+                               (prio<ls->priority)&&
+                               (ls->selectedlang!=-1)){
+                               nBest=ls->selectedlang;
+                               av=ls->availability;
+                               prio=ls->priority;
+                       }
                }
+       if (nBest==-1) /* fall back to C */
+               nBest=0;
+       WC->selected_language=nBest;
+       lprintf(9, "language found: %s\n", AvailLang[WC->selected_language]);
+       //      set_selected_language(selected_locale);
+}
+
+/* TODO: we skip the language weightening so far. */
+/* Accept-Language: 'de-de,en-us;q=0.7,en;q=0.3' */
+/* Accept-Language: de,en-ph;q=0.8,en-us;q=0.5,de-at;q=0.3 */
+//void httplang_to_locale(char *LocaleString)
+//{
+//     char selected_locale[16];
+//     int i, j;
+//     char lang[64];
+//     int num_accept = 0;
+//
+//     lprintf(9, "languageAccept: %s\n", LocaleString);
+//
+//     strcpy(selected_locale, "C");
+//     num_accept = num_tokens(LocaleString, ',');
+//
+//     for (i=num_accept-1; i>=0; --i) {
+//             extract_token(lang, LocaleString, i, ',', sizeof lang);
+//
+//             /* Strip out the weights; we don't use them.  Also convert
+//              * hyphens to underscores.
+//              */
+//             for (j=0; j<strlen(lang); ++j) {
+//                     if (lang[j] == '-') lang[j] = '_';
+//                     if (lang[j] == ';') lang[j] = 0;
+//             }
+//
+//             for (j=0; j<NUM_LANGS; ++j) {
+//                     if (!strncasecmp(lang, AvailLang[j], strlen(lang))) {
+//                             strcpy(selected_locale, AvailLang[j]);
+//                     }
+//             }
+//     }
+//
+//     lprintf(9, "language found: %s\n", selected_locale);
+//     set_selected_language(selected_locale);
+//}
 
-               i++;
+
+void offer_languages(void) {
+       int i;
+
+       wprintf("<select name=\"language\" size=\"1\">\n");
+
+       for (i=0; i < NUM_LANGS; ++i) {
+               wprintf("<option %s value=%s>%s</option>\n",
+                       ((WC->selected_language == i) ? "selected" : ""),
+                       AvailLang[i],
+                       AvailLang[i]
+               );
        }
-       /* todo: weight  */
-
-       for (i = 0; i <= nFound; i++) {
-               for (j = 0; j < nAvail; j++) {
-                       int ret = strncasecmp(wanted_locales[i],
-                                             AvailLang[j],
-                                             strlen(wanted_locales[i]));
-                       if (!ret) {
-                               locale = (char *) AvailLang[j]; //wanted_locales[i];
-                               i = nFound + 1;
-                               j = nAvail + 1;
-                               continue;
-                       }
 
+       wprintf("</select>\n");
+}
+
+/*
+ * Set the selected language for this session.
+ */
+void set_selected_language(char *lang) {
+       int i;
+
+       for (i=0; i<NUM_LANGS; ++i) {
+               if (!strcasecmp(lang, AvailLang[i])) {
+                       WC->selected_language = i;
                }
        }
+}
+
+/*
+ * Activate and deactivate the selected language for this session.
+ */
+void go_selected_language(void) {
+       if (WC->selected_language < 0) return;
+       uselocale(wc_locales[WC->selected_language]);   /* switch locales */
+       textdomain(textdomain(NULL));                   /* clear the cache */
+}
+
+void stop_selected_language(void) {
+       uselocale(LC_GLOBAL_LOCALE);                    /* switch locales */
+       textdomain(textdomain(NULL));                   /* clear the cache */
+}
+
+
+/*
+ * Create a locale_t for each available language
+ */
+void initialize_locales(void) {
+       int i;
+       locale_t Empty_Locale;
+       char buf[32];
+
+       /* create default locale */
+       Empty_Locale = newlocale(LC_ALL_MASK, NULL, NULL);
+
+       for (i = 0; i < NUM_LANGS; ++i) {
+               sprintf(buf, "%s.UTF8", AvailLang[i]);
+               wc_locales[i] = newlocale(LC_MESSAGES_MASK /* |LC_TIME_MASK FIXME */ ,
+                       buf,
+                       Empty_Locale
+               );
+       }
+}
+
+
+#else  /* ENABLE_NLS */
+
+void offer_languages(void) {
+       wprintf("English (US)");
+}
+
+void set_selected_language(char *lang) {
+}
+
+void go_selected_language(void) {
+}
 
-       len = strlen(locale);
-       memcpy(search, locale, len);
-       memcpy(&search[len], ".UTF8", 5);
-       search[len + 5] = '\0';
-       my_Empty_Locale = newlocale(LC_ALL_MASK, NULL, NULL);   /* create default locale */
-       my_Locale = newlocale(LC_MESSAGES_MASK /*|LC_TIME_MASK FIXME */ ,
-                             search, my_Empty_Locale);
-
-       uselocale(my_Locale);
-       //      freelocale(my_Locale);
-       //      freelocale(my_Empty_Locale);
-       free(search);
+void stop_selected_language(void) {
 }
 
-#endif
+#endif /* ENABLE_NLS */