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QuoteRef: wirtN7_1988
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Topic:
extensible languages
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user-centered operating system
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enumerated data types
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range data type
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arrays
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Thesa data structures
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command-line as a UserInterface
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global declarations and variables
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data record
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restricted and extended types
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type conversion
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safe use of pointers
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type reflection and introspection
Reference
Wirth, N., "From Modula to Oberon", Software--Practice and Experience, 18, 7, pp. 661-670, July 1988. Google
661 ;;Quote: an operating system should be a set of basic modules; application programming extends the system
663 ;;Quote: enumeration types should be dropt; defy extensibility and, with subranges, lead to a type explosion
664 ;;Quote: Oberon abandoned index types for arrays; indices start at 0, declarations specify a length
664 ;;Quote: no main programs in Oberon; replaced by parameterless procedures (commands)
664+;;Quote: a command in Oberon modifies the global state instead of transforming input to output
665 ;;Quote: an extended record type in Oberon adds fields to an existing type; retains compatibility with old types
666 ;;Quote: assigning an extended type to a base type copies the shared fields only
666 ;;Quote: data structures of different extended types that use the same base type
666 ;;Quote: Oberon has type tests and type guards for testing extended types given a base type
ThesaHelp: references t-z (309 items)
Topic: extensible languages (69 items)
Topic: user-centered operating system (24 items)
Topic: enumerated data types (17 items)
Topic: range data type (17 items)
Topic: arrays (57 items)
Topic: Thesa data structures (59 items)
Topic: command-line as a UserInterface (25 items)
Topic: global declarations and variables (33 items)
Topic: data record (57 items)
Topic: restricted and extended types (34 items)
Topic: type conversion (33 items)
Topic: safe use of pointers (102 items)
Topic: type reflection and introspection (28 items)