DRAFT of specification if Indexing By words for strings.

Sims, John AYU8 at CDC.GOV
Wed Sep 22 11:30:56 CDT 2004


> 
> >> Hmm, follow this, we can think about inheritance of lists. 
> But better 
> >> no.
> >> 
> >> Better combination as you point...
> >> 
> >> Although what to do if combined Prefs have different IngoreLength ?
> >> 
> >> 
> >> 
> >>> As always, thank you for letting us contribute our ideas
> >> and keep up
> >>> the great work!
> >> 
> >> Ok, so we have more hard work now :-)
> > 
> > 
> > I also saw the possibility of different ignore lengths as a problem 
> > but wanted to tell you my idea while this concept is still in the 
> > early stages.
> > 
> > Perhaps you should place this responsibility on the 
> developer to use 
> > combinations of IndexStrPrefs in ways that make sense and set the 
> > rules as something like the following:
> > 
> > If combining 2 or more IndexStrPrefs and any of them have 
> IgnoreLength 
> > > 0, then you use the largest ignore length.  If any of them have 
> > words to ignore, then those words are ignored in addition to words 
> > that fall under the IgnoreLength.  This could be quite powerful.
> > 
> > For example:
> > 
> > Prefs1.Name = "SingleLetters" :: IgnoreLength = 1
> > Prefs2.Name = "LittleWords" :: IgnoreLength = 2
> > Prefs3.Name = "Colors" :: Words to ignore = 
> > "red;blue;green;yellow;orange;purple;white;black"
> > 
> > Dim myPrefs(2) as string
> > myPrefs(0) = "SingleLetters"
> > myPrefs(1) = "LittleWords"
> > myPrefs(2) = "Colors"
> > 
> > myVstring.UseIndexPrefs ( myPrefs ) :: would ignore any words with 
> > length <= 2 and the words 
> > "red;blue;green;yellow;orange;purple;white;black" ---- 
> Notice that the 
> > "SingleLetters" IndexStrPref does not really have any 
> affect because 
> > it is "overridden" by the "LittleWords" IndexStrPref due to 
> its larger 
> > IgnoreLength.  So, I as a developer should be smart enough 
> to realize 
> > the I do not need to include "SingleLetters" in my IndexStrPrefs 
> > array. The correct call would be:
> > 
> > Dim myPrefs(1) as string
> > myPrefs(0) = "LittleWords"
> > myPrefs(1) = "Colors"
> > 
> > myVstring.UseIndexPrefs ( myPrefs )
> > 
> > Again, I hope I'm making good sense.
> 
> 
> I very like this !!!
> 
> Thank you!
> 
> We will try to implement this now

Glad I could help.  I look forward to seeing this feature in action.

-John


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