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QuoteRef: kayAC6_1968
topics >
all references >
Topic:
undefined, null, and other signal values
Topic:
foreach and for all statements
Topic:
representing a relationship
Topic:
case statement
Topic:
grammar modification
ThesaHelp:
references i-l
Topic:
parallel control statements
Topic:
binding names to variables or expressions
Topic:
co-sequence operations
Topic:
string and list concatenation
Topic:
multi-tasking
Topic:
user-centered operating system
Topic:
accessing a sequence
Topic:
extensible languages
Topic:
function syntax definition
Reference
Kay, A.C., "Flex--a flexible extendable language", Utah University, June 1968. Google
Other Reference
NTIS AD773-839
6 ;;Quote: in Flex can define new binary and unary operations QuoteRef: kayAC6_1968 ;;15 includes .omega.(undefined) and .infinity.(a/0) QuoteRef: kayAC6_1968 ;;25 "abcdef" [2 to 5] means "bcde" and a[2 to 5] means a[2], a[3],... a[5] QuoteRef: kayAC6_1968 ;;25 can say John 'is son 'of bill and ask ? 'is son 'of Bill (a set) or John .memberOf. son of bill (true/false). John isn son of Bill undoes the relationship QuoteRef: kayAC6_1968 ;;26 "# is the concatenation operator. the result is the concatenation of the two operands QuoteRef: kayAC6_1968 ;;28 (a,b) * (c,d,e) = (z*c, b*d, e) while a*(b,c,d) as usual QuoteRef: kayAC6_1968 ;;32 a<- "b" and a<-c+d is same as b<-c+d QuoteRef: kayAC6_1968 ;;33 a as set or list, sets a to next value and returns true if it exists for use in for statement while statement do statement QuoteRef: kayAC6_1968 ;;36 process as task or procedure QuoteRef: kayAC6_1968 ;;39 case statement by 'a[b]' where a<-('statement1', 'statement2' ....) QuoteRef: kayAC6_1968 ;;39 parallel processing by "a where a<-('statement1', 'statement2', ...)" QuoteRef: kayAC6_1968 ;;44 Flex is driven by scibe-- floyd-evans productions. user has access (describes complete description of system)
Topic: undefined, null, and other signal values (33 items)
Topic: foreach and for all statements (16 items)
Topic: representing a relationship (28 items)
Topic: case statement (25 items)
Topic: grammar modification (10 items)
ThesaHelp: references i-l (342 items)
Topic: parallel control statements (12 items)
Topic: binding names to variables or expressions (10 items)
Topic: co-sequence operations (8 items)
Topic: string and list concatenation (9 items)
Topic: multi-tasking (22 items)
Topic: user-centered operating system (24 items)
Topic: accessing a sequence (9 items)
Topic: extensible languages (69 items)
Topic: function syntax definition (17 items)