Automatic control of execution: An overview
APL '79 Proceedings of the international conference on APL: part 1
Array oriented exception handling: a proposal for dealing with “invalid” data
APL '85 Proceedings of the international conference on APL: APL and the future
Cooperating input and output stack processors
APL '83 Proceedings of the international conference on APL
A tool for program grading: The Jacksonville university scale
SIGCSE '83 Proceedings of the fourteenth SIGCSE technical symposium on Computer science education
Automated testing in APL—an application of exception handling
APL '82 Proceedings of the international conference on APL
APL '82 Proceedings of the international conference on APL
Deferred Execution: An “ACE” of an application
APL '79 Proceedings of the international conference on APL: part 1
Automatic control of execution: An overview
APL '79 Proceedings of the international conference on APL: part 1
APL '81 Proceedings of the international conference on APL
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This paper describes an Exception-Handling Facility implemented in the APL*PLUS* System which uses latent expressions similar to @@@@LX as the primary mechanism. Separate expressions are used to deal with errors which occur within the execution of APL statements, and with use of the break key on a terminal during statement execution. This allows application packages to deal directly and automatically with many situations which previously required intervention on the part of the user of the package. The facility also includes a means of providing information on the nature of the exception, and providing protection against security breaches for certain cases in which the exception handlers cannot perform their normal functions.