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How to refer comma delimited parameters into macro

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How to refer comma delimited parameters into macro

 

I need to do a wordcount based on comma delimiter and pass the delimiter parameters into macro.

Currently it is retreving both the arguments like  FILE1,FILE2 & DATA1,DATA2

 

 

 

%let Filename_1 = FILE1,FILE2;
%let SAS_DATASET = DATA1,DATA2;

%macro file_process;
%let word_cnt = %sysfunc(countW(&Filename_1,','));
%do  i = 1 %to &word_cnt;
%let file_name=%scan('&Filename_1',&i,',');
%let dataset=%scan('&SAS_DATASET',&i,',');
%end
%mend file_process;

 


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‎09-05-2016 04:24 PM
SAS Super FREQ
Posts: 709

Re: How to refer comma delimited parameters into macro

Posted in reply to jayakumarmm

Hi

 

Since the SAS Macro Language is text based you do not need to use quotes. Since some of your text contains characters which have a meaning in the macro language (comma separating arguments in functions) you need to use quoting functions.

 

To understand quoting functions, I recommend to read the following blog

http://blogs.sas.com/content/sgf/2014/08/15/macro-quoting-made-easy/

 

 

Below is the changed code:

 

%let Filename_1 = FILE1, FILE2;
%let SAS_DATASET = DATA1, DATA2;

%macro file_process;
  %let word_cnt = %sysfunc(countW(%bquote(&Filename_1), %str(,)));
  %put NOTE: &=word_cnt;

  %do i=1 %to &word_cnt;
    %let file_name = %scan(%bquote(&Filename_1), &i, %str(,));
    %let dataset = %scan(%bquote(&SAS_DATASET), &i, %str(,));
    %put NOTE: &=i &=file_name &=dataset;
  %end;
%mend file_process;

%file_process

Bruno

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All Replies
Solution
‎09-05-2016 04:24 PM
SAS Super FREQ
Posts: 709

Re: How to refer comma delimited parameters into macro

Posted in reply to jayakumarmm

Hi

 

Since the SAS Macro Language is text based you do not need to use quotes. Since some of your text contains characters which have a meaning in the macro language (comma separating arguments in functions) you need to use quoting functions.

 

To understand quoting functions, I recommend to read the following blog

http://blogs.sas.com/content/sgf/2014/08/15/macro-quoting-made-easy/

 

 

Below is the changed code:

 

%let Filename_1 = FILE1, FILE2;
%let SAS_DATASET = DATA1, DATA2;

%macro file_process;
  %let word_cnt = %sysfunc(countW(%bquote(&Filename_1), %str(,)));
  %put NOTE: &=word_cnt;

  %do i=1 %to &word_cnt;
    %let file_name = %scan(%bquote(&Filename_1), &i, %str(,));
    %let dataset = %scan(%bquote(&SAS_DATASET), &i, %str(,));
    %put NOTE: &=i &=file_name &=dataset;
  %end;
%mend file_process;

%file_process

Bruno

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