[sword-devel] Locale and text retrieval code

[Troy A. Griffitts]

>> The second thing I don't really understand is how to correctly pull 
>> out text for a verse key.
>> Some code is following, sorry for that.

Well, to correctly pull out text for a VerseKey, you should be able to 
just use 'VerseKey::getText()'  If you have enable unicode in sword, 
then you will be using the UTF8 locales which should always return UTF8 
and not Latin1.

If you have a crash bug please let me know and I will try to hunt things 
down before this next release.  Can you give me a small example of code 
that crashes?  e.g.

VerseKey key = "jn.1.1";
key.Persist(true);
ntOnlyModule.setKey(key);
ntOnlyModule.RenderText();


Does this crash?  It shouldn't.  Hope we can get things working well for 
you.  I need a new laptop and considering buying a Mac! :)

	-Troy.




>>
>> In MacSword I have implemented the code like this:
>>
>> -----------------------
>>    // needed to check for UTF8 string
>>    MSStringMgr *strMgr = new MSStringMgr();
>>
>>    // incoming reference
>>    const char *cref = [reference UTF8String];
>>    sword::VerseKey    vk;
>>    sword::ListKey listkey = vk.ParseVerseList(cref, vk, true);
>>    // for the duration of this query be want the key to persist
>>    listkey.Persist(true);
>>    swModule->setKey(listkey);
>>
>>    // iterate through keys
>>    for ((*swModule) = sword::TOP; !swModule->Error(); (*swModule)++) {
>>        const char *keyCStr = swModule->getKeyText();
>>        const char *txtCStr = swModule->RenderText();
>>        NSMutableDictionary *dict = [NSMutableDictionary 
>> dictionaryWithCapacity:2];
>>        NSString *key = @"";
>>        NSString *txt = @"";
>>        if(strMgr->isUtf8(txtCStr)) {
>>            txt = [NSString stringWithUTF8String:txtCStr];
>>        } else {
>>            txt = [NSString stringWithCString:txtCStr 
>> encoding:NSISOLatin1StringEncoding];
>>        }
>>
>>        if([self isUnicode]) {
>>            key = [NSString stringWithUTF8String:keyCStr];
>>        } else {
>>            key = [NSString stringWithCString:keyCStr 
>> encoding:NSISOLatin1StringEncoding];
>>        }
>>
>>        // add to dict
>>        [dict setObject:txt forKey:SW_OUTPUT_TEXT_KEY];
>>        [dict setObject:key forKey:SW_OUTPUT_REF_KEY];
>>        // add to array
>>        [ret addObject:dict];
>>    }
>>    // remove persitent key
>>    swModule->setKey("gen.1.1");
>> ------------------------
> 
> The above code still crashes for references that doesn't exist while the 
> below code works everywhere and always.
> 
>> This actually works but due to the problem with the locale and Umlauts 
>> it crashes somewhere in the library in the head of the for loop 
>> ((*swModule) = sword::TOP).
>>
>> I have some older code lying around (which actually is used in 
>> MacSword 1.4.3 done by William) which I to be honest don't understand:
>>
>> --------------------------
>>     sword::VerseKey vk;
>>        int lastIndex;
>>     ((sword::VerseKey*)(swModule->getKey()))->Headings(1);   
>>     sword::ListKey listkey = vk.ParseVerseList(toUTF8(reference), 
>> "Gen1", true);   
>>     for (int i = 0; i < listkey.Count(); i++) {
>>         sword::VerseKey *element = My_SWDYNAMIC_CAST(VerseKey, 
>> listkey.GetElement(i));
>>        
>>         // is it a chapter or book - not atomic
>>         if(element) {
>>             swModule->Key(element->LowerBound());
>>             // find the upper bound
>>             vk = element->UpperBound();
>>             vk.Headings(true);
>>         } else {
>>             // set it up
>>             swModule->Key(*listkey.GetElement(i));
>>         }
>>
>>         // while not past the upper bound
>>         do {           
>>             //add verse index to dictionary
>>             char *ctxt = (char *)swModule->RenderText();
>>             int clen = strlen(ctxt);
>>            NSString *text = fromUTF8(ctxt);
>>            NSString *verse = fromUTF8(swModule->Key().getText());
>>
>>            // add to dict
>>            NSMutableDictionary *dict = [NSMutableDictionary 
>> dictionaryWithCapacity:2];
>>            [dict setObject:text forKey:SW_OUTPUT_TEXT_KEY];
>>            [dict setObject:verse forKey:SW_OUTPUT_REF_KEY];
>>            // add to array
>>            [ret addObject:dict];
>>
>>             lastIndex = (swModule->Key()).Index();
>>             (*swModule)++;
>>             if(lastIndex == (swModule->Key()).Index())
>>                 break;
>>         }while (element && swModule->Key() <= vk);
>>     }
>> ---------------------
>> This code also has the locale problem but it doesn't crash.
>> The problem is however that I don't know the right way of pulling out 
>> text and I don't really understand some portions of the above code. 
>> These two loops really confuse me. I would be happy if someone could 
>> tell me line by line what happens here.
>> I had the impression that actually the code above, which crashes, is 
>> correct. But it seems, it is not.
>>
>>
>>
>> Regards,
>> Manfred
>>
>>
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