SAS 9.4 Macro Language, 5th Edition

#7 @5 'Enter /// when you are finished.'

#9 @5 val 100 attr=underline;

%macro ask2;

%global myprob;

%local temp;

%do %until(%superq(val) eq %str(///)); /* No ampersand */

%display ask;

%let temp=&temp %superq(val); /* No ampersand */

%end;

%let myprob=&temp

%mend ask2;

You can invoke the macro ASK2 and enter a response:

%ask2

Try entering:

My macro ADDRESS starts with %MACRO ADDRESS(COMPANY,

CITY);. I called it with %ADDRESS(SMITH-JONES, INC., BOSTON),

but it said I had too many parameters. What happened?

///

The response contains a macro language keyword, a macro invocation, and unmatched

parentheses.

Summary of Macro Quoting Functions and the

Characters That They Mask

Different macro quoting functions mask different special characters and mnemonics so

that the macro facility interprets them as text instead of as macro language symbols.

The following table divides the symbols into categories and shows which macro quoting

functions mask which symbols.

Table 7.6 Summary of Special Characters and Macro Quoting Functions by Item

Group Items Macro Quoting Functions

A + — */<>=¬^|~;, # blank AND OR

NOT EQ NE LE LT GE GT IN

all

B &% %NRSTR, %NRBQUOTE,

%SUPERQ, %NRQUOTE

C unmatched' “() %BQUOTE, %NRBQUOTE,

%SUPERQ, %STR*, %NRSTR*,

%QUOTE*, %NRQUOTE*

96 Chapter 7 • Macro Quoting