[aspell-devel] Re: Can I get "edit distance" for the suggestions?

[Ethan Bradford]

On 4/27/06, Kevin Atkinson <address@hidden> wrote:

On Wed, 26 Apr 2006, Ethan Bradford wrote:

> On 4/26/06, Kevin Atkinson <address@hidden> wrote:
>>
>> On Wed, 26 Apr 2006, Kevin Atkinson wrote:
>>
>>> On Tue, 25 Apr 2006, Ethan Bradford wrote:
>>>
>>>> So I should clone common/string_enumeration.* and string_list.* with
>>>> "suggestion" instead of string, right?
>>>
>>> That sounds reasonable.
>>>
>>>> Those files are in the common
>>>> directory.  Do the suggestion list/enumeration utilities belong there,
>> or
>>>> closer to modules/speller/default /suggest.cpp?
>>>
>>> No they should still be in common since it will become part of the
>> public
>>> interface which is not directly related to the current speller module.
>> (Ie a
>>> different speller modules, if one was every written, would likely want
>> to
>>> them).
>>
>> I should also add, that if the files are automatically generated you
>> should modify "auto/mk-src.in" if possible.  Just use the other entries as
>> example it should be easy to figure out.  If it looks like mk-src won't
>> do what you want than let me know.
>
>
> I found and modified auto/mk-src.in; it's working like a champ!
>
> The SuggestionList class it creates is abstract,  I'm thinking I want the
> implementation in common/, since there's likely to be only one kind of
> SuggestionList, and as such, I'm thinking to override the produced
> suggestion_list.hpp with a concrete implementation, as is done for
> string_list.hpp.  I'm leaning towards keeping the abstract class for
> SuggestionEnumeration, and defining (also in common/)
> SuggestionListEnumeration as a concrete implementation working on a
> suggestion list.

SuggestionListEnumeration?  What exactly will that do?

I suggest you just copy what is done with String{List,Enumeration} But
instead of returning a "const char *"  return a "const Suggestion *"
object.  Suggestion should be a structure something like

   struct Suggestion {
     const char * word;
     size_t word_size;
     float score;
   };

But StringEnumeration is an abstract class, with concrete implementations attached to various things to enumerate through: DictStringEnumeration, IstreamEnumeration, StringListEnumeration.  SuggestionListEnumeration would be like StringListEnumeration: a concrete class for SuggestionEnumeration whose target data is a SuggestionList.