Date:         Fri, 15 Jan 2010 17:52:30 +0100
Reply-To:     Andre Wielki <wielki@INED.FR>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Andre Wielki <wielki@INED.FR>
Subject:      Re: Why I cann't use %local like this?
Comments: To: Joe Matise <snoopy369@GMAIL.COM>
In-Reply-To:  <b7a7fa631001150828p7d3abb53y8338aeabd3646a3d@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Look perhaps at the difference between
this where MV a is not created
 %macro t1;
     a
  %mend;
  %macro t2;
      %local b;
      %local %t1;
       %local c;
      /*%let a= empty; */
      %put _local_;
      &a
      &empty ;
      %put _user_;
      %t1
  %mend;
  options mprint mlogic symbolgen;
  %t2;

and this one  where there is a text content inside a
  %macro t1;
     a
  %mend;
  %macro t2;
      %local b;
      %local %t1;
       %local c;
      %let a= empty;
      %put _local_;
      &a
      &empty ;
      %put _user_;
  %mend;
  options mprint mlogic symbolgen;
  %t2;

Andre
now we must reread SAS documentation!!!

Joe Matise a écrit :
> Hmm, good point.  And & variables certainly work:
> %let t1=a;
> %macro t2;
>    %local &t1 c;
>    %local b;
>
>    %put _local_;
> %mend;
> options source2 mprint mlogic symbolgen;
> %t2;
>
> Must be something with 'local' and a macro call confusing what it's local
> to.  When you use %global, it works as expected.
>
> -Joe
>
>
> On Fri, Jan 15, 2010 at 10:23 AM, Yu Zhang <zhangyu05@gmail.com> wrote:
>
>
>> But if you declare a local macro var like
>> %local B;
>>
>> in macro 2 and no value was assigned,
>>
>> Mvar B is in the local table. can someone explain why the form of "%local
>> %t1" can not get the mvar a to the table?
>>
>>
>> %macro t1;
>>   a
>> %mend;
>> %macro t2;
>>    %local %t1;
>>    %local b;
>>
>>    %put _local_;
>> %mend;
>> options mprint mlogic symbolgen;
>> %t2;
>>
>> Thanks!
>>
>> Yu
>>
>>
>> On Fri, Jan 15, 2010 at 9:36 AM, Joe Matise <snoopy369@gmail.com> wrote:
>>
>>
>>> I believe it's because you haven't assigned it a value yet.
>>>
>>> -Joe
>>>
>>> On Fri, Jan 15, 2010 at 12:19 AM, jiyuan123 <jiyuan123@gmail.com> wrote:
>>>
>>>
>>>> Dear SAS-Lers,
>>>>
>>>>    I want use a macro to generate some macro local variables. like this,
>>>>
>>>>
>>>> %macro t1;
>>>>   a
>>>> %mend;
>>>> %macro t2;
>>>>    %local %t1;
>>>>    %put _local_;
>>>> %mend;
>>>> options mprint mlogic symbolgen;
>>>> %t2;
>>>>
>>>> why I cann't get macro local variable "A" in %t2?
>>>>
>>>> thanks a lot.
>>>> jiyuan123
>>>>
>>>>
>>
>
>

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   André WIELKI
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