regex101: SAS Boundaries version 3

Non-Capturing Group(?:\A|;)

1st Alternative\A

\Astart of string

2nd Alternative;

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

Non-Capturing Group(?:\s*)

\s*any whitespace character, repeated any number of times

Group 1((?:%macro |%inc(?:lude)?\b|data |proc )[^;]+)

Non-Capturing Group(?:%macro |%inc(?:lude)?\b|data |proc )

1st Alternative%macro

%macro the literal text %macro (case sensitive)

2nd Alternative%inc(?:lude)?\b

%incthe literal text %inc (case sensitive)

Non-Capturing Group(?:lude)?

?repeats the group contents below at most once:

ludethe literal text lude (case sensitive)

\ban ASCII word boundary

3rd Alternativedata

data the literal text data (case sensitive)

4th Alternativeproc

proc the literal text proc (case sensitive)

Negated Character Class[^;]+

+matches at least one character outside the set below:

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Search reference

Regular Expression

(?:\A|;)(?:\s*)((?:%macro |%inc(?:lude)?\b|data |proc )[^;]+)

New

%macro foo;
	%inc "foo.sas";
%mend;

%macro mylogit1(all_deps, outest);
  %let k=1;
  %let dep = %scan(&all_deps, &k);
  %do %while("&dep" NE "");
    title "dependent variable is &dep";
    proc logistic data=xxx des outest=_est&k;
      model &dep = ind1 ind2;
    run;
    %let k = %eval(&k + 1);
    %let dep = %scan(&all_deps, &k);
  %end;
  %if "&outest" NE "" %then 
  %do;
    data &outest;
      set 
      %do i = 1 %to &k - 1;
        _est&i
      %end; 
      ;
    run;	  
    %let k = %eval(&k - 1);
    proc datasets;
      delete _est1 - _est&k;
    run;
  %end;
  %else 
  %do;
     %put no dataset name was provided, files are not combined;
  %end;
%mend;
%mylogit1(v1 v2 v3);

%mylogit1(v1 v2 v3, a);
proc print data = a;
  var intercept ind1 ind2;
run;

Regular Expressions 101

Regular Expression

Substitution