topic Re: How to recover from a bad macro execution in SAS Programming

How to recover from a bad macro execution

dreamcatcher — Thu, 24 May 2012 03:33:24 GMT

%macro test;

%local test;

%let test=%bquote(proc print;run;); %*wrong,should use %str instead%*;

%put &test;

%mend;

%test;

The above macro is wrong, so,after execution, the following DATA doesn't work.

data test;

length weding $50.;

weding="Li and Hong's weding"; output;

weding="Hong and Hong's weding"; output;

weding="Hong's weding"; output;

call symput('vfromdata',trim(weding));

run;

but even I follow the macro trouble shooting:http://support.sas.com/documentation/cdl/en/mcrolref/61885/HTML/default/viewer.htm#a001302436.htm

submit the:

*'; *"; *); */; %mend; run;

and correct the macro %test above (use %str instead). then the macro works fine, but the Data step above still doesn't work。I have to restart SAS, then the data Step works fine again.

any way to avoid restarting SAS to make the Data step work after submit the wrong macro above?

thanks

Re: How to recover from a bad macro execution

JasonDiVirgilio — Thu, 24 May 2012 16:17:20 GMT

I don't think there's anything wrong with your macro (if you use %str).

The dataset, however has single quotes within double-quotes. Rewrite as the following and you should be ok, putting two single quotes together:

data test;

length weding $50.;

weding="Li and Hong''s weding"; output;

weding="Hong and Hong''s weding"; output;

weding="Hong''s weding"; output;

call symput('vfromdata',trim(weding));

run;

Re: How to recover from a bad macro execution

Haikuo — Thu, 24 May 2012 16:30:59 GMT

Well, if that doesn't work, there was a SAS-L discussion talking about 'enhanced magic strings':

http://www.listserv.uga.edu/cgi-bin/wa?A2=ind9810b&L=sas-l&P=17321

Good Luck,

Haikuo