Re: very newbie question (sring confusion)

[Lloyd Dupont]

std.algorithm!
will have a look, thanks!

"bearophile"  wrote in message news:isb5ql$1i23$1...@digitalmars.com... 


Lloyd Dupont:


I did the following, what do you think of my implementation?


Those for loops seem better as foreach ones, or even reverse foreach ones.
Probably in std.algorithm there is stuff to shorten your code.

Bye,
bearophile

Re: very newbie question (sring confusion)

[Jonathan M Davis]

On 2011-06-03 09:55, Lloyd Dupont wrote:
> I did the following, what do you think of my implementation?
> (checking if my string and array usage could be improved / powered
> up!!!)
> 
> string[] _locales = ["en-AU", "fr-FR"];
> string getCurrentLocal() { return "fr-BE"; }
> string[] getCandidates()
> {
> auto local = getCurrentLocal();
> 
> string match = null;
> for (int i = _locales.length; i-->0;)
> {
> if(_locales[i] == local)
> {
> match = _locales[i];
> break;
> }
> }
> 
> string partial = null;
> if(local.length >= 2 && match == null)
> {
> for (int i = _locales.length; i-->0;)
> {
> auto tmpl = _locales[i];
> if (tmpl.length > 2 && tmpl[0] == local[0] && tmpl[1] ==
> local[1])
> {
> partial = tmpl;
> break;
> }
> }
> }
> 
> string[] result;
> if(match)
> {
> result.length = result.length + 1;
> result[result.length-1] = match;
> }
> if(partial && partial != match)
> {
> result.length = result.length + 1;
> result[result.length-1] = partial;
> }
> if(match != _locales[0] && partial != _locales[0])
> {
> result.length = result.length + 1;
> result[result.length-1] = _locales[0];
> }
> return result;
> }

You should probably take a look at std.algorithm.find.

- Jonathan M Davis

Re: very newbie question (sring confusion)

[bearophile]

Lloyd Dupont:

> I did the following, what do you think of my implementation?

Those for loops seem better as foreach ones, or even reverse foreach ones.
Probably in std.algorithm there is stuff to shorten your code.

Bye,
bearophile

Re: very newbie question (sring confusion)

[Lloyd Dupont]

I did the following, what do you think of my implementation?
(checking if my string and array usage could be improved / powered 
up!!!)


string[] _locales = ["en-AU", "fr-FR"];
string getCurrentLocal() { return "fr-BE"; }
string[] getCandidates()
{
   auto local = getCurrentLocal();

   string match = null;
   for (int i = _locales.length; i-->0;)
   {
   if(_locales[i] == local)
   {
   match = _locales[i];
   break;
   }
   }

   string partial = null;
   if(local.length >= 2 && match == null)
   {
   for (int i = _locales.length; i-->0;)
   {
   auto tmpl = _locales[i];
   if (tmpl.length > 2 && tmpl[0] == local[0] && tmpl[1] == 
local[1])

   {
   partial = tmpl;
   break;
   }
   }
   }

   string[] result;
   if(match)
   {
   result.length = result.length + 1;
   result[result.length-1] = match;
   }
   if(partial && partial != match)
   {
   result.length = result.length + 1;
   result[result.length-1] = partial;
   }
   if(match != _locales[0] && partial != _locales[0])
   {
   result.length = result.length + 1;
   result[result.length-1] = _locales[0];
   }
   return result;
}

very newbie question (sring confusion)

[Lloyd Dupont]

maybe it's late, or I have a hard time reading the string and array class 
methods.. (which I have! :~)

anyway, I have a very simple problem and it seems hard to fix!

let say I have a list of resource named preferential order (favored first) 
and I'd like to do return a list of match in preferential order (with always 
the default last)



for example:
my resources (default first): "en-AU", "fr-FR", "fr-BE"
my matches: for  i'd like to return a variable list / array xxx
"en-US" => "en-AU"
"fr-CA"  => "fr-FR", "en-AU"
"fr-BE"  => "fr-BE", "en-AU"
"es-EP" => "en-AU"

how could I do that?