SubL/examples.1

Information gathering function examples

constant-internal-id

arg1 datatype is STRUCTURE

CYC(#): (constant-internal-id "hello")
Error: "hello" is not of type STRUCTURE.
CYC(#): (structurep "hello")
Error: STRUCTUREP is not fboundp.

(constant-internal-id #$Lenat)

CYC(#): (constant-internal-id #$Lenat)
[Time: 0.0 secs]
1

print w/ 0 arguments is ERROR

CYC(#): (print)
Error: Cannot make an arity 0 function from #<Function PRINT> {req=1 ...}

print w/ 2 arguments

arg2 must be OUTPUT-TEXT-STREAM

CYC(#):(print "hello" #$Lenat)
Error: #$Lenat is not of type: OUTPUT-TEXT-STREAM.
CYC(#): (print "hello" "world")
[Time: 0.006 secs]
"hello"

print w/ 3+ arguments is ERROR

CYC(#): (print "hello" "world" #$Lenat)
Error: Cannot make an arity 3 function from #<Function PRINT> {req=1 opt=1 allowsrest=false}

print w/ 1 argument

(print "string")

CYC(#): (print "hello")
"hello" [Time: 0.002 secs]
"hello"

(print 'symbol )

CYC(15): (print 'symb)
SYMB [Time: 0.002 secs]
SYMB

(print stringp)

CYC(#): (print stringp)
Error: STRINGP is not bound.

(print #$Lenat)

CYC(#): (print #$Lenat)
#$Lenat [Time: 0.0 secs]
#$Lenat

constantp

returns T if arg1 is a constant
returns NIL if arg1 is not a constant
?ignores arg2 ?
ERROR if arg0 or arg3 or more

constantp w/ 0 arg is ERROR

CYC(56): (constantp)
Error: Cannot make an arity 0 function from #<Function CONSTANTP> {req=1 ...}

constantp w/ >2 arg is ERROR

CYC(#): (constantp #$Lenat #$Lenat #$Lenat)
Error: Cannot make an arity 3 function from #<Function CONSTANTP> {req=1 opt=1 allowsrest=false}

constantp w/ 1 arg

(constantp "a")

CYC(54): (constantp "a")
[Time: 0.0 secs]
T

(constantp #$Lenat)

CYC(#): (constantp #$Lenat)
[Time: 0.002 secs]
T

(constantp 'a)

CYC(#): (constantp 'a)
[Time: 0.0 secs]
NIL

(constantp 1)

CYC(7): (constantp 1)
[Time: 0.0 secs]
T

constantp w/ 2 arg

(constantp #$Lenat "a")

CYC(#): (constantp #$Lenat "a")
[Time: 0.001 secs]
T

functionp

CYC(#): (functionp)
Error: Cannot make an arity 0 function from #<Function FUNCTIONP> {req=1 ...}
CYC(#): (functionp "a" 'a)
Error: Cannot make an arity 2 function from #<Function FUNCTIONP> {req=1 opt=0 allowsrest=false}

numberp

(numberp 1)

(numberp 1)
[Time: 0.0 secs]
T

(numberp #$Lenat)

CYC(#): (numberp #$Lenat)
[Time: 0.0 secs]
NIL

stringp

examples of use

CYC(#):  (stringp)
Error: Cannot make an arity 0 function from #<Function STRINGP> {req=1 ...}
CYC(#): (stringp "hello" "world")
Error: Cannot make an arity 2 function from #<Function STRINGP> {req=1 opt=0 allowsrest=false}

(stringp "hello")

CYC(#): (stringp "hello")
T

(stringp 1)

CYC(#): (stringp 1)
[Time: 0.0 secs]
NIL

(stringp NIL)

CYC(#): (stringp NIL)
[Time: 0.0 secs]
NIL

(stringp 'stringp)

CYC(#): (stringp 'stringp)
[Time: 0.0 secs]
NIL

(stringp #$Dog)

CYC(#): (stringp #$Dog)
[Time: 0.0 secs]
NIL