iv
Writing the Contents of Symbol Tables to the SAS Log 45
How Macro Variables Are Assigned and Resolved
45
Examples of Macro Variable Scopes
48
Chapter 6 Macro Expressions 67
Introduction to Macro Expressions
67
Defining Arithmetic and Logical Expressions
68
How the Macro Processor Evaluates Arithmetic Expressions
70
How the Macro Processor Evaluates Logical Expressions
71
Chapter 7 Macro Quoting 75
Introduction to Macro Quoting
75
Deciding When to Use a Macro Quoting Function and Which Function to Use
78
Using the %STR and %NRSTR Functions
80
Using the %BQUOTE and %NRBQUOTE Functions
84
Referring to Already Quoted Variables
85
Deciding How Much Text to Mask with a Macro Quoting Function
85
Using %SUPERQ 86
Summary of Macro Quoting Functions and the Characters They Mask
88
Unquoting Text
89
How Macro Quoting Works
91
Other Functions That Perform Macro Quoting
92
Chapter 8 Interfaces with the Macro Facility 95
Introduction to Interfaces with the Macro Facility
95
DATA Step Interfaces
96
Using SAS Language Functions in the DATA Step and Macro Facility
99
Interfaces with the SQL Procedure
100
Interfaces with the SAS Component Language
101
SAS/CONNECT Interfaces 103
Chapter 9 Storing and Reusing Macros 105
Introduction to Storing and Reusing Macros
105
Saving Macros in an Autocall Library
106
Saving Macros Using the Stored Compiled Macro Facility
108
Chapter 10 Macro Facility Error Messages and Debugging 111
General Macro Debugging Information
111
Troubleshooting Your Macros 113
Debugging Techniques
126
Chapter 11 Writing Efficient and Portable Macros 133
Introduction to Writing Efficient and Portable Macros 133
Keeping Efficiency in Perspective 133
Writing Efficient Macros 134
Writing Portable Macros 140
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