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QuoteRef: pembS1_1987
topics >
all references >
Topic:
lists
Topic:
arrays
Topic:
primitive data types of a language
Topic:
stepwise refinement
Topic:
global declarations and variables
Topic:
programmer productivity
Topic:
efficiency
Topic:
command language
Topic:
indentation
Topic:
selecting text with a mouse
Topic:
spreadsheet
Topic:
running programs in a workspace or environment
Reference
Pemberton, S., "An alternative simple language and environment for PCs", IEEE Software, January 1987, pp. 56- 64. Google
59 ;;Quote: ABC restricts data types to numbers, text, tuples, lists, and tables; lists and tables of the same type
60 ;;Quote: ABC supports stepwise refinement with dotted refinements and globally-allocated, persistent variables
61 ;;Quote: ABC programs are a quarter or a fifth the length of Pascal/C programs; e.g., FOR line IN document: PUT max{longest; #line} IN longest; faster development
62 ;;Quote: use ABC as a command language; invoke programs same as ABC commands; variables as file parameters
62 ;;Quote: use colon/indentation instead of begin..end
62 ;;Quote: use focus keys to select syntactic units, e.g., the first argument; First, Next, Last, Widen
63 ;;Quote: editing the session record automatically reexecutes the edited commands; like a spreadsheet
Topic: lists (8 items)
Topic: arrays (58 items)
Topic: primitive data types of a language (31 items)
Topic: stepwise refinement (25 items)
Topic: global declarations and variables (33 items)
Topic: programmer productivity (57 items)
Topic: efficiency (96 items)
Topic: command language (23 items)
Topic: indentation (25 items)
Topic: selecting text with a mouse (14 items)
Topic: spreadsheet (28 items)
Topic: running programs in a workspace or environment (14 items)