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digitalmars.D - assoc array initialization like in php

reply dennis luehring <dennis_member pathlink.com> writes:
in php you can init an assoc array
(for example with string-key and numeric value)
with

$test = array
(
'test' => 1,
'bla' => 2,
'blub' => 3
);

can we have something equal to this in d?

int test[char[]] = 
{
"test" => 1,
"bla" => 2,
"blub" => 3
}

or an enum example

enum ekey { TEST, BLA, BLUB };
int test[ekey] =
{
TEST => 1,
BLA => 2,
BLUB => 3
}

or is this an working feature in d (i cant find such examples in the docs)

ciao dennis
Feb 20 2006
next sibling parent reply =?ISO-8859-1?Q?Anders_F_Bj=F6rklund?= <afb algonet.se> writes:
dennis luehring wrote:


 in php you can init an assoc array


[...]

 can we have something equal to this in d?


It's on the D wishlist, along with array inits...

i.e.
   int test[] = [ 1,2,3 ];

See http://www.digitalmars.com/d/archives/26695.html


Choosing a syntax would be a good thing, though ?

maybe:
   int test[char[]] = [ "test": 1, "bla": 2, "blub": 3 ];

--anders


PS.
For now, you need to use explicit initializers instead:
   int test[char[]];
   test["test"] = 1;
   test["bla"] = 2;
   test["blub"] = 3;
Feb 20 2006
next sibling parent Chris Sauls <ibisbasenji gmail.com> writes:
Anders F Björklund wrote:

 Choosing a syntax would be a good thing, though ?
 
 maybe:
   int test[char[]] = [ "test": 1, "bla": 2, "blub": 3 ];


I vote for this one.  It is consistant with struct initializers, and just
pleases me eyes.

-- Chris Nicholson-Sauls
Feb 20 2006
prev sibling next sibling parent Dawid =?UTF-8?B?Q2nEmcW8YXJraWV3aWN6?= <dawid.ciezarkiewicz gmail.com> writes:
Anders F Björklund wrote:

 Choosing a syntax would be a good thing, though ?
 
 maybe:
    int test[char[]] = [ "test": 1, "bla": 2, "blub": 3 ];


+1  looks good
Feb 20 2006
prev sibling parent reply nick <nick.atamas gmail.com> writes:
 PS.
 For now, you need to use explicit initializers instead:
   int test[char[]];
   test["test"] = 1;
   test["bla"] = 2;
   test["blub"] = 3;


You know, this syntax looks almost as good as the proposed ones. Perhaps
no change in necessary.
Feb 20 2006
parent =?ISO-8859-1?Q?Anders_F_Bj=F6rklund?= <afb algonet.se> writes:
nick wrote:


For now, you need to use explicit initializers instead:
  int test[char[]];
  test["test"] = 1;
  test["bla"] = 2;
  test["blub"] = 3;


 
 You know, this syntax looks almost as good as the proposed ones. Perhaps
 no change in necessary.


Just like in Java, it gets a little uglier when it's a "global":

int test[char[]];

static this()
{
   test["test"] = 1;
   test["bla"] = 2;
   test["blub"] = 3;
}

But having array/map literals, doesn't change this "old" syntax ?

--anders
Feb 20 2006
prev sibling parent "Derek Parnell" <derek psych.ward> writes:
On Mon, 20 Feb 2006 21:35:54 +1100, dennis luehring  
<dennis_member pathlink.com> wrote:


 in php you can init an assoc array
 (for example with string-key and numeric value)
 with

 $test = array
 (
 'test' => 1,
 'bla' => 2,
 'blub' => 3
 );


You play around with the template syswtem to get something useful ...
// ---------------------
import std.c.stdarg;
template setter(Tk, Td)
{
     Td[Tk] setter ( ... )
     {
         Td[Tk] lTemp;
         Tk key;
         Td data;

         int ready = 0;
         for (int i = 0; i < _arguments.length; i+=2)
         {
             key = va_arg!(Tk)(_argptr);
             data = va_arg!(Td)(_argptr);
             lTemp[ key ] = data;
         }

         return lTemp;
     }
}

import std.stdio;
void main()
{

     auto test = setter!(char[], int)(
             "test", 1,
             "bla", 2,
             "blub", 3
                 );

     foreach(char[] x, int q; test)
         writefln("Key=%s, Data = %s", x, q);
}
// ---------------------

-- 
Derek Parnell
Melbourne, Australia
Feb 20 2006