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QuoteRef: storEF_1970
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Topic:
undefined, null, and other signal values
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failure returning functions and expressions
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range checking
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builtin functions
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string literals
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if-then-else test chain
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references sa-sz
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simple loop
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pattern components
Reference
Storm, E.F., "Vulcan--a string handling language with dynamic storage control", AFIPS Fall Joint Computer Conference, pp. 21-32, 1970. Google
QuoteRef: storEF_1970 ;;23-4 general statement is list of clauses % (condition list : operation-list in brackets. on condition list, execute operation list and terminate statement as true (:) is the null always true clause QuoteRef: storEF_1970 ;;24 x= is the null string
25 ;;Quote: Vulcan defines infix operator x/a.y.c where a. and .c receive pre and post context QuoteRef: storEF_1970 ;;25 true procedure returns arguments, false procedure keeps arguments as the same QuoteRef: storEF_1970 ;;25 *procedure-call is repeat till true while *-pro is repeat till false QuoteRef: storEF_1970 ;;25 false (statement is false), return (procedure is true), returnf (procedure is false) QuoteRef: storEF_1970 ;;27 range (x,y,z) true iff x=<y=<z QuoteRef: storEF_1970 ;;28 all statements true of false eg open a file is true if successful
Topic: undefined, null, and other signal values (33 items)
Topic: failure returning functions and expressions (24 items)
Topic: range checking (20 items)
Topic: builtin functions (6 items)
Topic: string literals (3 items)
Topic: if-then-else test chain (18 items)
ThesaHelp: references sa-sz (237 items)
Topic: simple loop (15 items)
Topic: pattern components (15 items)