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Re: gnubol: How are grammars progressing





Fred Mobach wrote on 19/12/99:

>> Organization = indexed : access = sequential | random | dynamic
>> (sometimes called extended)
>> By sequential :
>> By open input : read at end and start invalid key
>> By open output : write invalid key
>> By open i-o : read at end, rewrite invalid key, start invalid key, delete
>> invalid key
>>
>> By random :
>> By open input : read invalid key
>> By open output : write invalid key
>> By open i-o : read invalid key, write invalid key, rewrite invalid key,
delete
>> invalid key
>>
>> By dynamic :
>> By open input : read [at end | invalid key] and start invalid key
>> By open output : write invalid key
>> By open i-o : read [at end | invalid key], write invalid key, rewrite invalid
>> key, start invalid key, delete invalid key

Does that also include   read next | read previous
                    with lock | ignore lock ?

Regards

Fred Neale



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