EN 28485 : 1993

National foreword
Committees responsible
Specification
0. Introduction
1. Scope and field of application
2. References
3. Form of the Standard
3.1 Form of Definitions
3.2 Names Arrays in Examples
3.3 Notes
3.4 Cross-references
3.5 General Definitions
4. Compliance
4.1 Conforming Implementations
4.2 Conforming Programs
5. Definitions
5.1 Characters
5.2 Numbers
5.3 Objects
5.4 Evaluation Sequences
5.5 Other Terms
6. Syntax and Evaluation
6.1 Introduction
6.2 Reduce-Statement
6.3 The Phrase Evaluators
6.4 The Form Table
7. Scalar Functions
7.1 Monadic Scalar Functions
7.2 Dyadic Scalar Functions
8. Structural Primitive Functions
8.1 Introduction
8.2 Monadic Structural Primitive Functions
8.3 Dyadic Structural Primitive Functions
9. Operators
9.1 Introduction
9.2 Monadic Operators
9.3 Dyadic Operators
10. Mixed Functions
10.1 Monadic Mixed Functions
10.2 Dyadic Mixed Functions
11. System Functions
11.1 Introduction
11.2 Definition
11.3 Diagram
11.4 Niladic System Functions
11.5 Monadic System Functions
11.6 Dyadic System Functions
12. System Variables
12.1 Definitions
12.2 Evaluation Sequences
13. Defined Functions
13.1 Introduction
13.2 Definitions
13.3 Diagrams
13.4 Operations
13.5 Function Editing
14. Shared Variables
14.1 Informal Introduction
14.2 Definitions
14.3 Diagrams
14.4 Operations
14.5 Shared Variable Forms
14.6 Shared Variable System Functions
15. Formatting and Numeric Conversion
15.1 Introduction
15.2 Numeric Conversion
15.3 Diagrams
15.4 Operations
16. Input and Output
16.1 Introduction
16.2 Definitions
16.3 Diagrams
16.4 Operations
17. System Commands
17.1 Introduction
17.2 Definitions
17.3 Diagrams
17.4 Operations
17.5 Diagrams and Evaluation Sequences
Annex A. The APL Character Set for Workspace Interchange
Annex B. The Workspace Interchange Convention
B.1 Introduction
B.1.1 Purpose of the Convention
B.1.2 Organization of the Convention
B.2 Level 1 Description
B.2.1 Canonical Representation Vectors
B.2.2 Representation of Variables
B.2.3 Representation of Functions
B.2.4 Representation of Executable Expressions
B.3 Level 2 Description
B.3.1 Multiple Canonical Representation Vectors
B.3.2 Workspace Environment
B.3.3 Pseudovariables
B.3.4 Interchange Convention Identifier
B.3.5 Escape
B.3.6 Bits
B.3.7 Translate
B.3.8 Note
B.3.9 Workspace Identifier
B.3.10 End of Stream
B.3.11 Inclusion of Nonstandard Material
B.3.12 Use of Other Types
B.4 Level 3 Description
B.4.1 Atoms
B.4.2 Registered character sets
B.4.3 Escape sequences
B.4.4 Registered characters
B.4.5 ISO-API characters
B.4.6 Characters
B.4.7 The Translate Table
B.4.8 Example
B.4.9 Escape
B.4.10 Bits
B.4.11 Translate
B.4.12 Example
B.4.13 Mapping of Characters to Bits
B.4.14 Stage 1 Translation
B.4.15 Stage 2 Translation
B.4.16 Example
B.4.17 Summary
B.5 Level 4 Description
B.5.1 Physical Media
B.5.2 Nine-track Magnetic Tape
B.6 Extended Example
Bibliography
Index

Describing the programming language APL and the environment in which APL programs are executed. Facilitates interchange and promotes portability of APL programs and programming skills. Specifies the syntax and semantics of APL and the characteristics of the environment in which APL programs are executed. Also specifies requirements for conformance to this standard. Does not specify: required values for implementation limits such as numeric precision or APL workspace size; implementation properties that are likely to vary with the particular equipment or operating system used: the facilities available through shared variables; and the data structures used to represent APL objects.