balance

 

 

Description

The balance function locates the sub-string (if any) of the source string {sourceString}, starting at the specified displacement {startPos}, that is enclosed by parentheses. If the specified source start location is not enclosed by parentheses, the balance function returns the Boolean value false.

When to use

Since the Lisp language is heavily (like all Lisp dialects) involved with matching open and close parentheses, this function can be used often during automated Script editing.

 

Syntax

(balance sourceString startPos)



Name Description AIS Types
sourceStringSource String that contains a Lisp expression String
startPosAn integer value that represents the starting position to determine if the expression is balanced.Integer


Returns:

If the specified source string starting at the specified position, is balanced, then the return value is the substring containing the balanced expression. If the string is not balanced, then the Boolean value false is returned.

 

Examples

Here are a number of links to Lambda coding examples which contain this instruction in various use cases.

 

Argument Types

Here are the links to the data types of the function arguments.

Lambda String Integer

Here are also a number of links to functions having arguments with any of these data types.

++(Symbol) +=(Symbol) +(Complex) +(Number)
/=(Symbol) /(Complex) /(Number) *=(Symbol)
*(Complex) *(Number) --(Symbol) -=(Symbol)
-(Complex) -(Number) abs(Complex) abs(Number)
addMethod(BitVector) addMethod(Boolean) addMethod(Brick) addMethod(Character)
addMethod(CpxVector) addMethod(Date) addMethod(Dictionary) addMethod(Directory)
addMethod(FltVector) addMethod(Function) addMethod(IntVector) addMethod(List)
addMethod(Matrix) addMethod(NumMatrix) addMethod(NumVector) addMethod(Number)
addMethod(ObjVector) addMethod(ObjectRepository) addMethod(Pair) addMethod(PcodeVector)
addMethod(ShortVector) addMethod(String) addMethod(Structure) addMethod(Symbol)
addMethod(Vector) addMethod(Void) addi(Number) appendWriteln(ByteVector)
append(BitVector) append(Complex) append(CpxVector) append(FltVector)
append(IntVector) append(Matrix) append(NumMatrix) append(NumVector)
append(ObjVector) append(Pair) append(ShortVector) append(String)
append(Structure) append(Symbol) append(Vector) argCount(Lambda)
argFetch(Lambda) attachLibrarian(ObjectRepository) avg(CpxVector) avg(Number)
badd(Boolean) balance(Lambda) bdiv(Boolean) binaryInsert(CpxVector)
binaryInsert(FltVector) binaryInsert(IntVector) binaryInsert(Matrix) binaryInsert(NumMatrix)
binaryInsert(NumVector) binaryInsert(ShortVector) binaryInsert(Structure) binaryInsert(Vector)
binaryNand(Integer) binaryNor(Integer) binaryNot(Integer) binaryNxor(Integer)
binarySearch(CpxVector) binarySearch(Dictionary) binarySearch(FltVector) binarySearch(IntVector)
binarySearch(Matrix) binarySearch(NumMatrix) binarySearch(NumVector) binarySearch(ObjVector)
binarySearch(ShortVector) binarySearch(Structure) binarySearch(Vector) bitwiseAnd(Integer)
bitwiseNand(Integer) bitwiseNor(Integer) bitwiseNot(Integer) bitwiseNxor(Integer)
bitwiseOr(Integer) bitwiseShiftLeft(Integer) bitwiseShiftRight(Integer) bitwiseXor(Integer)
bmod(Boolean) bmul(Boolean) boolean(Boolean) cadd(Character)
callcc(Lambda) cdiv(Character) char(String) character(Character)
clean(String) closeLog(FileIO) cmod(Character) cmul(Character)
code(String) compareEQ(BitVector) compareEQ(Boolean) compareEQ(Brick)
compareEQ(Character) compareEQ(Complex) compareEQ(CpxVector) compareEQ(Date)
compareEQ(Dictionary) compareEQ(Directory) compareEQ(FltVector) compareEQ(Function)
compareEQ(IntVector) compareEQ(Lambda) compareEQ(List) compareEQ(Matrix)
compareEQ(NumMatrix) compareEQ(NumVector) compareEQ(Number) compareEQ(ObjVector)
compareEQ(ObjectRepository) compareEQ(Pair) compareEQ(ShortVector) compareEQ(String)
compareEQ(Structure) compareEQ(Symbol) compareEQ(Vector) compareEQ(Void)
compareGE(BitVector) compareGE(Boolean) compareGE(Brick) compareGE(Character)
compareGE(Complex) compareGE(CpxVector) compareGE(Date) compareGE(Dictionary)
compareGE(Directory) compareGE(Function) compareGE(IntVector) compareGE(Lambda)
compareGE(List) compareGE(Matrix) compareGE(NumMatrix) compareGE(Number)
compareGE(ObjVector) compareGE(ObjectRepository) compareGE(Pair) compareGE(ShortVector)
compareGE(String) compareGE(Structure) compareGE(Symbol) compareGE(Vector)
compareGE(Void) compareGT(BitVector) compareGT(Boolean) compareGT(Brick)
compareGT(Character) compareGT(Complex) compareGT(CpxVector) compareGT(Date)
compareGT(Dictionary) compareGT(Directory) compareGT(Function) compareGT(IntVector)
compareGT(Lambda) compareGT(List) compareGT(Matrix) compareGT(NumMatrix)
compareGT(NumVector) compareGT(Number) compareGT(ObjVector) compareGT(ObjectRepository)
compareGT(Pair) compareGT(ShortVector) compareGT(String) compareGT(Structure)
compareGT(Symbol) compareGT(Vector) compareGT(Void) compareLE(BitVector)
compareLE(Boolean) compareLE(Brick) compareLE(Character) compareLE(Complex)
compareLE(CpxVector) compareLE(Date) compareLE(Dictionary) compareLE(Directory)
compareLE(FltVector) compareLE(Function) compareLE(IntVector) compareLE(Lambda)
compareLE(List) compareLE(Matrix) compareLE(NumMatrix) compareLE(NumVector)
compareLE(Number) compareLE(ObjVector) compareLE(ObjectRepository) compareLE(Pair)
compareLE(ShortVector) compareLE(String) compareLE(Structure) compareLE(Symbol)
compareLE(Vector) compareLE(Void) compareLT(BitVector) compareLT(Boolean)
compareLT(Brick) compareLT(Character) compareLT(Complex) compareLT(CpxVector)
compareLT(Date) compareLT(Dictionary) compareLT(Directory) compareLT(FltVector)
compareLT(Function) compareLT(IntVector) compareLT(Lambda) compareLT(List)
compareLT(Matrix) compareLT(NumMatrix) compareLT(NumVector) compareLT(Number)
compareLT(ObjVector) compareLT(ObjectRepository) compareLT(Pair) compareLT(ShortVector)
compareLT(String) compareLT(Structure) compareLT(Symbol) compareLT(Vector)
compareLT(Void) compareNE(BitVector) compareNE(Boolean) compareNE(Brick)
compareNE(Character) compareNE(Complex) compareNE(CpxVector) compareNE(Date)
compareNE(Dictionary) compareNE(Directory) compareNE(FltVector) compareNE(Function)
compareNE(IntVector) compareNE(Lambda) compareNE(List) compareNE(Matrix)
compareNE(NumMatrix) compareNE(NumVector) compareNE(Number) compareNE(ObjVector)
compareNE(ObjectRepository) compareNE(Pair) compareNE(ShortVector) compareNE(String)
compareNE(Structure) compareNE(Symbol) compareNE(Vector) compareNE(Void)
compare(BitVector) compare(Boolean) compare(Brick) compare(Character)
compare(Complex) compare(CpxVector) compare(Date) compare(Dictionary)
compare(Directory) compare(FltVector) compare(Function) compare(IntVector)
compare(Lambda) compare(List) compare(Matrix) compare(NumMatrix)
compare(NumVector) compare(Number) compare(ObjVector) compare(ObjectRepository)
compare(Pair) compare(ShortVector) compare(String) compare(Structure)
compare(Symbol) compare(Vector) compare(Void) comparison(BitVector)
comparison(Boolean) comparison(Brick) comparison(Character) comparison(Complex)
comparison(Date) comparison(Dictionary) comparison(Directory) comparison(FltVector)
comparison(Function) comparison(IntVector) comparison(List) comparison(Matrix)
comparison(NumMatrix) comparison(NumVector) comparison(Number) comparison(ObjVector)
comparison(ObjectRepository) comparison(Pair) comparison(ShortVector) comparison(String)
comparison(Structure) comparison(Symbol) comparison(Vector) comparison(Void)
compile(Lambda) compile(List) compress(ByteVector) cons(Pair)
copy(BitVector) copy(Brick) copy(CpxVector) copy(Dictionary)
copy(Directory) copy(FltVector) copy(IntVector) copy(Lambda)
copy(List) copy(Matrix) copy(NumMatrix) copy(NumVector)
copy(ObjVector) copy(Pair) copy(PcodeVector) copy(ShortVector)
copy(Structure) copy(Vector) count(Dictionary) count(Directory)
count(List) count(Matrix) count(NumMatrix) count(Pair)
count(Structure) count(Vector) csub(Character) date(Date)
day(Date) days360(Date) debugBrowsableProcs(Context) debugBrowsableProcs(Lambda)
debugDialog(String) debug(Context) debug(Lambda) defchild(Lambda)
define(macro)(Lambda) define(Lambda) defmacro(Lambda) deforphan(Lambda)
defriend(Lambda) defun(Lambda) deleteRows(Brick) delete(Dictionary)
delete(Directory) delete(FltVector) delete(IntVector) delete(List)
delete(Matrix) delete(NumMatrix) delete(NumVector) delete(ObjVector)
delete(ObjectRepository) delete(Pair) delete(ShortVector) delete(Structure)
delete(Vector) detachLibrarian(ObjectRepository) disassemble(Context) disassemble(Lambda)
display(ByteVector) display(FileIO) divi(Number) downcase(String)
downcase(Symbol) encode(ByteVector) evalInSyncLocalContext(Context) eval(Lambda)
eval(List) exportTab(Lambda) exportTab(ObjectRepository) fact(Integer)
fact(Number) fdisplay(ByteVector) fdisplay(Text) fileClose(ByteVector)
fileClose(Text) fileDisplay(ByteVector) fileDisplay(Text) fileErase(ByteVector)
fileErase(Text) fileOpen(ByteVector) fileOpen(Text) fileReadRecord(ByteVector)
fileReadRecord(String) fileReadRecord(Text) fileRead(ByteVector) fileRead(Text)
fileResize(ByteVector) fileResize(String) fileResize(Text) fileSeek(ByteVector)
fileSeek(String) fileSeek(Text) fileWrite(ByteVector) fileWrite(String)
fileWrite(Text) filewriteln(ByteVector) filewriteln(String) filewriteln(Text)
findBlock(BitVector) find(String) floor(Number) fraction(Number)
freeBlock(BitVector) gcd(Integer) gcd(Number) getContextPtr(Context)
getHttp(String) getHttp(Text) globalBinding(Context) globalBinding(Lambda)
hashString(String) hashString(Symbol) hour(Date) iadd(Integer)
icompareEQ(Integer) icompareGE(Integer) icompareGT(Integer) icompareLE(Integer)
icompareLT(Integer) icompareNE(Integer) idiv(Integer) imod(Integer)
importTab(Lambda) importTab(ObjectRepository) imul(Number) insertRows(Brick)
insert(Dictionary) insert(Directory) insert(FltVector) insert(IntVector)
insert(Matrix) insert(NumMatrix) insert(NumVector) insert(ObjVector)
insert(ShortVector) insert(Structure) insert(Vector) inside(BitVector)
inside(Dictionary) inside(Directory) inside(IntVector) inside(List)
inside(Matrix) inside(NumMatrix) inside(NumVector) inside(ShortVector)
inside(Structure) inside(Vector) inspect(Context) inspect(Lambda)
inspect(ObjectRepository) integer(Integer) isAtom(BitVector) isAtom(Brick)
isAtom(Dictionary) isAtom(Directory) isAtom(FltVector) isAtom(IntVector)
isAtom(List) isAtom(Matrix) isAtom(NumMatrix) isAtom(NumVector)
isAtom(ObjVector) isAtom(Pair) isAtom(PcodeVector) isAtom(ShortVector)
isAtom(Structure) isAtom(Vector) isBitVector(BitVector) isBoolean(Boolean)
isBound(Dictionary) isBound(Directory) isBound(Structure) isByteVector(ByteVector)
isCharAlphabetic(ByteVector) isCharAlphabetic(String) isCharAlphabetic(Symbol) isCharAlphanumeric(ByteVector)
isCharAlphanumeric(String) isCharAlphanumeric(Symbol) isCharLowercase(ByteVector) isCharLowercase(String)
isCharLowercase(Symbol) isCharName(ByteVector) isCharName(String) isCharName(Symbol)
isCharNumeric(ByteVector) isCharNumeric(String) isCharNumeric(Symbol) isCharUppercase(ByteVector)
isCharUppercase(String) isCharUppercase(Symbol) isCharWhitespace(ByteVector) isCharWhitespace(String)
isCharWhitespace(Symbol) isChar(String) isCharacter(Character) isComplex(Complex)
isDate(Date) isDictionary(Dictionary) isDirectory(Directory) isEqual(BitVector)
isEqual(Boolean) isEqual(Brick) isEqual(Character) isEqual(Complex)
isEqual(Date) isEqual(Dictionary) isEqual(Directory) isEqual(FltVector)
isEqual(Function) isEqual(IntVector) isEqual(List) isEqual(Matrix)
isEqual(NumMatrix) isEqual(NumVector) isEqual(Number) isEqual(ObjVector)
isEqual(Pair) isEqual(ShortVector) isEqual(String) isEqual(Structure)
isEqual(Vector) isEqual(Void) isError(Error) isEven(Number)
isFloatVector(FltVector) isIdentical(BitVector) isIdentical(Boolean) isIdentical(Brick)
isIdentical(Character) isIdentical(Complex) isIdentical(Date) isIdentical(Dictionary)
isIdentical(Directory) isIdentical(Error) isIdentical(FltVector) isIdentical(Function)
isIdentical(IntVector) isIdentical(List) isIdentical(Matrix) isIdentical(NumMatrix)
isIdentical(NumVector) isIdentical(Number) isIdentical(ObjVector) isIdentical(ObjectRepository)
isIdentical(Pair) isIdentical(PcodeVector) isIdentical(ShortVector) isIdentical(Structure)
isIdentical(Vector) isIdentical(Void) isInside(BitVector) isInside(Dictionary)
isInside(Directory) isInside(IntVector) isInside(List) isInside(Matrix)
isInside(NumMatrix) isInside(NumVector) isInside(ObjVector) isInside(Pair)
isInside(ShortVector) isInside(Structure) isInside(Vector) isIntegerVector(IntVector)
isInteger(Integer) isMatrix(Matrix) isMember(BitVector) isMember(Dictionary)
isMember(Directory) isMember(IntVector) isMember(List) isMember(Matrix)
isMember(NumMatrix) isMember(NumVector) isMember(ObjVector) isMember(Pair)
isMember(ShortVector) isMember(Structure) isMember(Vector) isMoney(Number)
isNumberMatrix(NumMatrix) isNumberVector(NumVector) isNumber(Number) isObjectVector(ObjVector)
isObject(BitVector) isObject(Brick) isObject(ByteVector) isObject(Dictionary)
isObject(Directory) isObject(FltVector) isObject(IntVector) isObject(List)
isObject(Matrix) isObject(NumMatrix) isObject(NumVector) isObject(ObjVector)
isObject(Pair) isObject(PcodeVector) isObject(ShortVector) isObject(String)
isObject(Structure) isObject(Symbol) isObject(Vector) isPair(List)
isPair(Pair) isPcodeVector(PcodeVector) isString(String) isStructure(Structure)
isSymbol(Symbol) isText(String) isType(BitVector) isType(Boolean)
isType(Brick) isType(Character) isType(Complex) isType(Date)
isType(Dictionary) isType(Directory) isType(FltVector) isType(Function)
isType(IntVector) isType(Matrix) isType(NumMatrix) isType(NumVector)
isType(Number) isType(ObjVector) isType(ObjectRepository) isType(Pair)
isType(ShortVector) isType(String) isType(Structure) isType(Symbol)
isType(Vector) isType(Void) isVector(Vector) isub(Integer)
julian(Date) kurtosis(Number) lambda(Lambda) lcm(Integer)
left(String) length(BitVector) length(Brick) length(Dictionary)
length(Directory) length(FltVector) length(IntVector) length(List)
length(Matrix) length(NumMatrix) length(NumVector) length(ObjVector)
length(ObjectRepository) length(Pair) length(PcodeVector) length(ShortVector)
length(String) length(Structure) length(Symbol) length(Vector)
lisp(Lambda) lisp(List) list(List) loadLib(String)
loadWorkspace(Context) macroReplace(String) makeLambda(Lambda) makeQuotedList(List)
makeQuotedSymbol(Symbol) max(Number) median(Number) member(BitVector)
member(Dictionary) member(Directory) member(IntVector) member(List)
member(Matrix) member(NumMatrix) member(NumVector) member(ObjVector)
member(ShortVector) member(Structure) member(Vector) mid(String)
min(Number) minute(Date) mod(Complex) mod(Number)
modi(Number) money(Number) month(Date) muli(Number)
myself(Lambda) new(BitVector) new(Brick) new(ByteVector)
new(CpxVector) new(Dictionary) new(Directory) new(FltVector)
new(IntVector) new(Lambda) new(Matrix) new(NumMatrix)
new(NumVector) new(ObjVector) new(ObjectRepository) new(PcodeVector)
new(ShortVector) new(String) new(Structure) new(Symbol)
new(Vector) number(Number) objectToMatrix(Matrix) objectToNumMatrix(NumMatrix)
objectToNumVector(NumVector) onError(Error) onError(Lambda) openLog(FileIO)
openLog(String) pair(Pair) parse(String) postHttp(String)
postHttp(Text) preAllocateFixedMemoryBlocks(Context) product(Number) random(Number)
randomize(Number) range(Number) rank(Matrix) rank(NumMatrix)
readHtmlPage(String) readHtmlPage(Text) refAttributes(Dictionary) refAttributes(Directory)
refAttributes(Structure) refAttributes(Vector) refLibrarian(ObjectRepository) refValues(Dictionary)
refValues(Directory) refValues(Structure) refValues(Vector) ref(BitVector)
ref(Boolean) ref(Brick) ref(Character) ref(Complex)
ref(Date) ref(Dictionary) ref(Directory) ref(FltVector)
ref(Function) ref(IntVector) ref(Lambda) ref(List)
ref(Matrix) ref(NumMatrix) ref(NumVector) ref(Number)
ref(ObjVector) ref(ObjectRepository) ref(PcodeVector) ref(ShortVector)
ref(String) ref(Structure) ref(Symbol) ref(Vector)
ref(Void) remove(BitVector) remove(Dictionary) remove(Directory)
remove(IntVector) remove(Matrix) remove(NumMatrix) remove(NumVector)
remove(ObjVector) remove(ShortVector) remove(Structure) remove(Vector)
replace(String) rept(String) requestHttp(String) requestHttp(Text)
resize(BitVector) resize(Dictionary) resize(Directory) resize(FltVector)
resize(IntVector) resize(Matrix) resize(NumMatrix) resize(NumVector)
resize(ObjVector) resize(ShortVector) resize(Structure) resize(Vector)
right(String) round(Number) run(ByteVector) run(Text)
saveImmediate(ObjectRepository) saveObject(ByteVector) saveObject(Integer) saveWorkspace(Context)
second(Date) send(BitVector) send(Boolean) send(Brick)
send(Character) send(CpxVector) send(Date) send(Dictionary)
send(Directory) send(FltVector) send(Function) send(IntVector)
send(Lambda) send(List) send(Matrix) send(NumMatrix)
send(NumVector) send(Number) send(ObjectRepository) send(Pair)
send(ShortVector) send(String) send(Structure) send(Symbol)
send(Vector) send(Void) setAttributes(Dictionary) setAttributes(Directory)
setAttributes(Structure) setAttributes(Vector) setBlock(BitVector) setCar(List)
setCar(Pair) setCdr(BitVector) setCdr(Brick) setCdr(Dictionary)
setCdr(Directory) setCdr(FltVector) setCdr(IntVector) setCdr(List)
setCdr(Matrix) setCdr(NumMatrix) setCdr(NumVector) setCdr(ObjVector)
setCdr(Pair) setCdr(ShortVector) setCdr(Structure) setCdr(Vector)
setLastCdr(BitVector) setLastCdr(FltVector) setLastCdr(IntVector) setLastCdr(List)
setLastCdr(Matrix) setLastCdr(NumMatrix) setLastCdr(NumVector) setLastCdr(ObjVector)
setLastCdr(Structure) setLastCdr(Vector) set(ObjectRepository) setf(ObjectRepository)
setq(BitVector) setq(Boolean) setq(Brick) setq(Character)
setq(Date) setq(Dictionary) setq(Directory) setq(FltVector)
setq(IntVector) setq(Lambda) setq(List) setq(Matrix)
setq(NumVector) setq(Number) setq(ObjVector) setq(ObjectRepository)
setq(PcodeVector) setq(ShortVector) setq(String) setq(Structure)
setq(Symbol) setq(Vector) setq(Void) sizeof(BitVector)
sizeof(Boolean) sizeof(Brick) sizeof(ByteVector) sizeof(Character)
sizeof(Complex) sizeof(Date) sizeof(Dictionary) sizeof(Directory)
sizeof(FltVector) sizeof(Function) sizeof(IntVector) sizeof(List)
sizeof(Matrix) sizeof(NumMatrix) sizeof(NumVector) sizeof(Number)
sizeof(ObjVector) sizeof(ObjectRepository) sizeof(Pair) sizeof(PcodeVector)
sizeof(ShortVector) sizeof(String) sizeof(Structure) sizeof(Symbol)
sizeof(Vector) sizeof(Void) skew(Number) sort(BitVector)
sort(Dictionary) sort(Directory) sort(FltVector) sort(IntVector)
sort(List) sort(Matrix) sort(NumMatrix) sort(NumVector)
sort(ObjVector) sort(ShortVector) sort(Structure) sort(Vector)
sqrt(Complex) sqrt(Number) srandom(Number) stdev(Number)
stdevp(Number) stringCiEQ(String) stringCiGE(String) stringCiGT(String)
stringCiLE(String) stringCiLT(String) stringCiNE(String) stringFill(String)
stringToBVector(String) stringToVector(String) string(Complex) string(String)
subi(Number) submit(Context) substitute(String) substringCiEQ(String)
substringCiGE(String) substringCiGT(String) substringCiLE(String) substringCiLT(String)
substringCiNE(String) substringEQ(String) substringFill(String) substringGE(String)
substringGT(String) substringLE(String) substringLT(String) substringNE(String)
substring(String) sum(Complex) sum(Number) sumsqr(Complex)
sumsqr(Number) svmRegression(Vector) symbol(Symbol) system(ByteVector)
system(Text) testFunction(Structure) text(String) time(Date)
trim(String) type(BitVector) type(Boolean) type(Brick)
type(ByteVector) type(Character) type(Complex) type(Date)
type(Dictionary) type(Directory) type(FltVector) type(Function)
type(IntVector) type(Lambda) type(Matrix) type(NumMatrix)
type(NumVector) type(Number) type(ObjVector) type(ObjectRepository)
type(Pair) type(PcodeVector) type(ShortVector) type(String)
type(Structure) type(Symbol) type(Vector) type(Void)
uniqueInsert(FltVector) uniqueInsert(IntVector) uniqueInsert(Matrix) uniqueInsert(NumMatrix)
uniqueInsert(NumVector) uniqueInsert(ObjVector) uniqueInsert(ShortVector) uniqueInsert(Structure)
uniqueInsert(Vector) upcase(String) upcase(Symbol) var(Number)
varp(Number) vectorBinaryInnerProduct(NumVector) vectorBipolarInnerProduct(NumVector) vectorCosineInnerProduct(NumVector)
vectorCubeInnerProduct(NumVector) vectorDelete(Directory) vectorExpInnerProduct(NumVector) vectorFill(BitVector)
vectorFill(FltVector) vectorFill(IntVector) vectorFill(Matrix) vectorFill(NumMatrix)
vectorFill(NumVector) vectorFill(ObjVector) vectorFill(ShortVector) vectorFill(Vector)
vectorInnerProduct(NumVector) vectorLogInnerProduct(NumVector) vectorQuartInnerProduct(NumVector) vectorQuintInnerProduct(NumVector)
vectorSigmoidInnerProduct(NumVector) vectorSineInnerProduct(NumVector) vectorSquareInnerProduct(NumVector) vectorTanInnerProduct(NumVector)
vectorTanhInnerProduct(NumVector) writeln(ByteVector) writeln(String) writeln(Text)
year(Date)

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