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vicky07
Quartz | Level 8

Hello,

 

I have a macro variable something like below and i want to remove the string after the last '\'. and store the output in macro

 

%let path = D:\input\sas\files\today\chart_data*.sas7bdat;

 

Expected output is:

 

D:\input\sas\files\today\

 

Basically i want to remove all the words after the last '\'. Can someone please help me to get the desired output? Thanks.

1 ACCEPTED SOLUTION

Accepted Solutions
Ksharp
Super User
%let path = D:\input\sas\files\today\chart_data*.sas7bdat;
%let want=%sysfunc(prxchange(s/[^\\\/]+$//,1,&path));

%put &want;

View solution in original post

7 REPLIES 7
LinusH
Tourmaline | Level 20
Take a look at the findc() and %substr() functions.
Data never sleeps
novinosrin
Tourmaline | Level 20

One easy and lazy way:

 

%let path = D:\input\sas\files\today\chart_data*.sas7bdat;

data _null_;
k="&path";
call scan(k, -1, position, length,'\');
substr(k,position,length)=' ';
call symputx('path',k);
run;

%put &path;

However, I challenge you to accomplish the same with %syscall with call scan in open code or rxchange

vicky07
Quartz | Level 8
I will give it a try with %syscall, thank you!
RW9
Diamond | Level 26 RW9
Diamond | Level 26

You could double reverse it:

data want;
  pth=reverse(scan(reverse("&path."),1,"\"));
run;

Basically reverse the string, scna off the first block based on \ delimiter, then reverse the result.

vicky07
Quartz | Level 8
Got it, Thank You!
Ksharp
Super User
%let path = D:\input\sas\files\today\chart_data*.sas7bdat;
%let want=%sysfunc(prxchange(s/[^\\\/]+$//,1,&path));

%put &want;
vicky07
Quartz | Level 8
It worked. Thank You!

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