SAS(R) 9.1.3 Companion for z/OS

CHAPTER
8
SAS Interfaces to ISPF and REXX
SAS Interface to ISPF 184
Software Requirements 184
Enabling the Interface 184
Invoking ISPF Services 184
Using the ISPEXEC CALL Routine 185
Using the ISPLINK CALL Routine 186
Testing ISPEXEC and ISPLINK Return Codes 186
Using ISPF Dialog Development Models 186
Using Special SAS System Options with the Interface 186
Changing the Status of ISPF Interface Options during Execution of a DATA Step 187
Using the ISPF Editor from Your SAS Session 188
Copying ISPF EDIT Models to Your SAS Session 188
Using Special Facilities for Passing Parameters to ISPF 189
Variable-Naming Conventions 189
Specifying Fixed Binary Parameters 189
Passing Parameters That Are Longer Than 200 Bytes 190
Bypassing Parameter Processing 190
Accessing SAS Variables from ISPF 190
VDEFINE, VDELETE, and VRESET Services 190
Handling Numeric Variables 191
Handling Character Variables 191
Examples of Defining Variables 192
Tips and Common Problems 193
Checking for Invalid Values in SAS Variables 193
Checking for Null Values in ISPF Variables 193
Truncated Values for Numeric Variables 193
Uninitialized Variables 193
Character Values Passed for Numeric Variables 194
Testing ISPF Applications 194
Sample Application 194
Employee Records Application 194
Contents of Member SASEMPLA in ISPPLIB 195
First Employee Record Application Panel 196
Contents of Member SASEMPLB in ISPPLIB 197
Second Employee Record Application Panel 198
Contents of Member SASX21 in ISPMLIB 198
SAS Interface to REXX 199
Enabling the Interface 199
Invoking a REXX Exec 199
Interacting with the SAS Session from a REXX Exec 200
Routing Messages from REXX Execs to the SAS Log 200
183