R · Built-in API

FUNCTION RADIANS(degrees AS DOUBLE) AS DOUBLE

SUB RANDOMIZE(seed AS UINT64)

SUB RANDOMIZE(seed AS INTEGER)

SUB RANDOMIZE() FAILS IoError

FUNCTION Range[T](s AS SortedSet[T],first AS T,finish AS T) AS LIST OF T FAILS LIKE __ValueOrderCheck(AS T),LIKE ValidateKey(AS T)

FUNCTION RangeKeys[K,V](d AS SortedDictionary[K,V],first AS K,finish AS K) AS LIST OF K FAILS LIKE __ValueOrderCheck(AS K),LIKE ValidateKey(AS K)

FUNCTION Rank[T](items AS ARRAY OF T) AS INTEGER

FUNCTION ReadBinaryFile(path AS STRING) AS LIST OF BYTE FAILS IoError

FUNCTION ReadByte() AS INTEGER FAILS IoError

FUNCTION ReadByte(BYREF reader AS ByteReader) AS BYTE FAILS IndexError

FUNCTION ReadByte[T](BYREF reader AS BufferedReader[T]) AS OPTIONAL OF BYTE FAILS IoError,IndexError WHERE T IS RESOURCE

FUNCTION ReadBytes(BYREF reader AS ByteReader,count AS INTEGER) AS LIST OF BYTE FAILS IndexError

FUNCTION ReadBytes[T](BYREF reader AS BufferedReader[T],maximum AS INTEGER) AS LIST OF BYTE FAILS IoError,IndexError WHERE T IS RESOURCE

FUNCTION ReadDirectory(path AS STRING) AS LIST OF DirectoryEntry FAILS IoError,IndexError,StringError

FUNCTION ReadDirectory(file AS File) AS LIST OF DirectoryEntry FAILS IoError,IndexError,StringError

FUNCTION ReadDouble(BYREF reader AS ByteReader,Order AS ByteOrder=ByteOrder.LittleEndian) AS DOUBLE FAILS IndexError

FUNCTION ReadFileBytes(path AS STRING) AS LIST OF INTEGER FAILS IoError

FUNCTION ReadFileInto(file AS File,BYREF bytes AS LIST OF BYTE,start AS INTEGER,count AS INTEGER) AS INTEGER FAILS IoError,IndexError

FUNCTION ReadFileSnapshot(path AS STRING) AS FileSnapshot FAILS IoError,IndexError,FileChanged

FUNCTION ReadFileText(path AS STRING) AS STRING FAILS IoError,StringError

FUNCTION ReadFontFaceCount(path AS STRING,maxBytes AS INTEGER=33554432) AS INTEGER FAILS CanvasError,IndexError,NumericError,IoError

FUNCTION ReadFontInfo(path AS STRING,maxBytes AS INTEGER=33554432,faceIndex AS INTEGER=0) AS FontInfo FAILS CanvasError,IndexError,NumericError,StringError,IoError

FUNCTION ReadHTTPBody(connection AS TCPConnection,BYREF exchange AS HTTPExchange,maximum AS INTEGER=8192) AS LIST OF BYTE FAILS IoError,HTTPError,IndexError,StringError

FUNCTION ReadHTTPBodyAll(connection AS TCPConnection,BYREF exchange AS HTTPExchange) AS LIST OF BYTE FAILS IoError,HTTPError,IndexError,StringError

FUNCTION ReadHTTPRequest(connection AS TCPConnection,BYREF exchange AS HTTPExchange) AS OPTIONAL OF HTTPRequest FAILS IoError,HTTPError,IndexError,StringError

FUNCTION ReadHTTPResponse(connection AS TCPConnection,BYREF exchange AS HTTPExchange) AS HTTPResponse FAILS IoError,HTTPError,IndexError,StringError

FUNCTION ReadInt16(BYREF reader AS ByteReader,Order AS ByteOrder=ByteOrder.LittleEndian) AS INTEGER FAILS IndexError

FUNCTION ReadInt32(BYREF reader AS ByteReader,Order AS ByteOrder=ByteOrder.LittleEndian) AS INTEGER FAILS IndexError

FUNCTION ReadInt64(BYREF reader AS ByteReader,Order AS ByteOrder=ByteOrder.LittleEndian) AS INTEGER FAILS IndexError

FUNCTION ReadInt8(BYREF reader AS ByteReader) AS INTEGER FAILS IndexError

FUNCTION ReadInto(BYREF bytes AS LIST OF INTEGER, start AS INTEGER, count AS INTEGER) AS INTEGER FAILS IoError,IndexError

FUNCTION ReadInto(BYREF bytes AS LIST OF BYTE, start AS INTEGER, count AS INTEGER) AS INTEGER FAILS IoError,IndexError

FUNCTION ReadInto(BYREF reader AS ByteReader,BYREF bytes AS LIST OF BYTE,start AS INTEGER,count AS INTEGER) AS INTEGER FAILS IndexError

FUNCTION ReadInto[T](BYREF reader AS BufferedReader[T],BYREF bytes AS LIST OF BYTE,start AS INTEGER,count AS INTEGER) AS INTEGER FAILS IoError,IndexError WHERE T IS RESOURCE

FUNCTION ReadJSON[T](file AS File,codec AS JsonCodec) AS T FAILS IoError,IndexError,JsonError,LIKE codec, LIKE __JsonDecodeErrors(AS T)

FUNCTION ReadJSON[T](file AS File) AS T FAILS IoError,IndexError,JsonError,LIKE __JsonDecodeErrors(AS T)

FUNCTION ReadJSONBody[T](request AS HTTPRequest,codec AS JsonCodec) AS T FAILS HTTPError,JsonError,LIKE codec, LIKE __JsonDecodeErrors(AS T)

FUNCTION ReadJSONBody[T](request AS HTTPRequest) AS T FAILS HTTPError,JsonError,LIKE request,LIKE __JsonDecodeErrors(AS T)

FUNCTION ReadJSONBody[T](request AS HTTPRequest,connection AS TCPConnection,BYREF exchange AS HTTPExchange,codec AS JsonCodec) AS T FAILS IoError,HTTPError,IndexError,StringError,JsonError,LIKE codec, LIKE __JsonDecodeErrors(AS T)

FUNCTION ReadJSONBody[T](request AS HTTPRequest,connection AS TCPConnection,BYREF exchange AS HTTPExchange) AS T FAILS IoError,HTTPError,IndexError,StringError,JsonError,LIKE __JsonDecodeErrors(AS T)

FUNCTION ReadJSONFile[T](path AS STRING,codec AS JsonCodec) AS T FAILS IoError,IndexError,JsonError,LIKE codec, LIKE __JsonDecodeErrors(AS T)

FUNCTION ReadJSONFile[T](path AS STRING) AS T FAILS IoError,IndexError,JsonError,LIKE __JsonDecodeErrors(AS T)

FUNCTION ReadJSONLine[T](file AS File,BYREF reader AS JsonLinesReader,codec AS JsonCodec) AS OPTIONAL OF T FAILS IoError,IndexError,JsonError,LIKE codec, LIKE __JsonDecodeErrors(AS T)

FUNCTION ReadJSONLine[T](file AS File,BYREF reader AS JsonLinesReader) AS OPTIONAL OF T FAILS IoError,IndexError,JsonError,LIKE __JsonDecodeErrors(AS T)

FUNCTION ReadJSONResponse[T](response AS HTTPResponse,codec AS JsonCodec) AS OPTIONAL OF T FAILS HTTPStatusError,HTTPError,JsonError,LIKE codec, LIKE __JsonDecodeErrors(AS T)

FUNCTION ReadJSONResponse[T](response AS HTTPResponse) AS OPTIONAL OF T FAILS HTTPStatusError,HTTPError,JsonError,LIKE __JsonDecodeErrors(AS T)

FUNCTION ReadLine() AS OPTIONAL OF STRING FAILS IoError,StringError

FUNCTION ReadLine[T](BYREF reader AS BufferedReader[T],MaxBytes AS INTEGER=1048576) AS OPTIONAL OF STRING FAILS IoError,IndexError,StringError WHERE T IS RESOURCE

FUNCTION ReadProcessInto(process AS Process,stream AS INTEGER,BYREF bytes AS LIST OF BYTE,start AS INTEGER,count AS INTEGER) AS INTEGER FAILS IoError,IndexError

FUNCTION ReadTCP(connection AS TCPConnection,maximum AS INTEGER=8192) AS LIST OF BYTE FAILS IoError,IndexError

FUNCTION ReadTCPInto(connection AS TCPConnection,BYREF bytes AS LIST OF BYTE,start AS INTEGER,count AS INTEGER) AS INTEGER FAILS IoError,IndexError

FUNCTION ReadTCPInto(connection AS TCPConnection,BYREF bytes AS LIST OF BYTE,start AS INTEGER,count AS INTEGER,timeout AS Duration) AS INTEGER FAILS IoError,IndexError

FUNCTION ReadTerminalEvent(terminal AS Terminal) AS TerminalEvent FAILS IoError,StringError

FUNCTION ReadTerminalEvent(terminal AS Terminal,timeout AS Duration) AS OPTIONAL OF TerminalEvent FAILS IoError,StringError

FUNCTION ReadUInt16(BYREF reader AS ByteReader,Order AS ByteOrder=ByteOrder.LittleEndian) AS UINT32 FAILS IndexError

FUNCTION ReadUInt16LE(bytes AS LIST OF BYTE,offset AS INTEGER) AS UINT32 FAILS IndexError

FUNCTION ReadUInt32(BYREF reader AS ByteReader,Order AS ByteOrder=ByteOrder.LittleEndian) AS UINT32 FAILS IndexError

FUNCTION ReadUInt32LE(bytes AS LIST OF BYTE,offset AS INTEGER) AS UINT32 FAILS IndexError

FUNCTION ReadUInt64(BYREF reader AS ByteReader,Order AS ByteOrder=ByteOrder.LittleEndian) AS UINT64 FAILS IndexError

FUNCTION ReadUInt64LE(bytes AS LIST OF BYTE,offset AS INTEGER) AS UINT64 FAILS IndexError

FUNCTION RealArgument(values AS DICT OF STRING TO ArgumentValue,name AS STRING) AS DOUBLE FAILS ArgumentError

FUNCTION RealOption(name AS STRING,Default AS DOUBLE=0.0,Short AS STRING="",Help AS STRING="",Required AS BOOLEAN=FALSE,Global AS BOOLEAN=FALSE) AS CommandOption

FUNCTION Receive[T](port AS RECEIVER OF T) AS OPTIONAL OF T

FUNCTION RedactedURL(value AS URL) AS STRING

FUNCTION RedirectResponse(location AS STRING,status AS INTEGER=302) AS HTTPResponse

FUNCTION RegexFind(pattern AS Regex,text AS STRING) AS OPTIONAL OF RegexMatch FAILS RegexError

FUNCTION RegexFind(pattern AS STRING,text AS STRING,Flags AS STRING="",Dialect AS RegexDialect=RegexDialect.Native,Limits AS RegexLimits=RegexLimits {}) AS OPTIONAL OF RegexMatch FAILS RegexError

FUNCTION RegexFindAll(pattern AS Regex,text AS STRING) AS LIST OF RegexMatch FAILS RegexError

FUNCTION RegexFindAll(pattern AS STRING,text AS STRING,Flags AS STRING="",Dialect AS RegexDialect=RegexDialect.Native,Limits AS RegexLimits=RegexLimits {}) AS LIST OF RegexMatch FAILS RegexError

FUNCTION RegexIsMatch(pattern AS Regex,text AS STRING) AS BOOLEAN FAILS RegexError

FUNCTION RegexIsMatch(pattern AS STRING,text AS STRING,Flags AS STRING="",Dialect AS RegexDialect=RegexDialect.Native,Limits AS RegexLimits=RegexLimits {}) AS BOOLEAN FAILS RegexError

FUNCTION RegexReplace(pattern AS Regex,text AS STRING,replacement AS STRING,all AS BOOLEAN=TRUE) AS STRING FAILS RegexError

FUNCTION RegexReplace(pattern AS STRING,text AS STRING,replacement AS STRING,all AS BOOLEAN=TRUE,Flags AS STRING="",Dialect AS RegexDialect=RegexDialect.Native,Limits AS RegexLimits=RegexLimits {}) AS STRING FAILS RegexError

FUNCTION RegexSplit(pattern AS Regex,text AS STRING) AS LIST OF STRING FAILS RegexError

FUNCTION RegexSplit(pattern AS STRING,text AS STRING,Flags AS STRING="",Dialect AS RegexDialect=RegexDialect.Native,Limits AS RegexLimits=RegexLimits {}) AS LIST OF STRING FAILS RegexError

FUNCTION REMAINDER(x AS DOUBLE, y AS DOUBLE) AS DOUBLE

FUNCTION Remaining(clock AS Clock,deadline AS Deadline) AS Duration FAILS DateTimeError

FUNCTION Remaining(reader AS ByteReader) AS INTEGER

FUNCTION Remove[T](BYREF items AS LIST OF T, value AS T) AS BOOLEAN

FUNCTION Remove[K](BYREF table AS SET OF K, key AS K) AS BOOLEAN FAILS LIKE ValidateKey(AS K)

FUNCTION Remove[K,V](BYREF table AS DICT OF K TO V, key AS K) AS BOOLEAN FAILS LIKE ValidateKey(AS K)

FUNCTION RemoveAt[T](BYREF items AS LIST OF T, index AS INTEGER) AS INTEGER FAILS IndexError

FUNCTION RemoveKey[K,V](BYREF m AS MultiMap[K,V],key AS K) AS INTEGER FAILS MissingKey,LIKE ValidateKey(AS K)

FUNCTION RemoveOne[K,V](BYREF m AS MultiMap[K,V],key AS K,value AS V) AS BOOLEAN FAILS MissingKey,LIKE ValidateKey(AS K) WHERE V IS COPYABLE

FUNCTION REMOVEPREFIX(text AS STRING, prefix AS STRING) AS STRING

FUNCTION REMOVESUFFIX(text AS STRING, suffix AS STRING) AS STRING

FUNCTION RemoveURLQueryParameter(BYREF parameters AS LIST OF URLParameter,name AS STRING) AS INTEGER

FUNCTION RemoveURLQueryParameter(BYREF value AS URL,name AS STRING) AS INTEGER FAILS UrlError

FUNCTION RemoveValue[T](BYREF s AS SortedSet[T],value AS T) AS BOOLEAN FAILS IndexError,LIKE __ValueOrderCheck(AS T),LIKE ValidateKey(AS T)

FUNCTION RemoveValue[K,V](BYREF d AS SortedDictionary[K,V],key AS K) AS BOOLEAN FAILS IndexError,LIKE __ValueOrderCheck(AS K),LIKE ValidateKey(AS K)

FUNCTION RemoveValue[T](BYREF c AS Counter[T],key AS T,amount AS INTEGER=1) AS INTEGER FAILS CollectionError,LIKE ValidateKey(AS T)

FUNCTION RenderHelp(root AS Command,path AS LIST OF STRING) AS STRING FAILS StringError

FUNCTION RenderHelp(root AS Command) AS STRING FAILS StringError

FUNCTION REPEAT(text AS STRING, count AS INTEGER) AS STRING FAILS StringError

FUNCTION REPLACE(text AS STRING, old AS STRING, replacement AS STRING) AS STRING

FUNCTION ReplaceOffsetKeepingLocal(value AS OffsetDateTime,offset AS UtcOffset) AS OffsetDateTime FAILS DateTimeError

FUNCTION ReplaceZoneKeepingLocal(value AS ZonedDateTime,zone AS TimeZone,options AS LocalResolveOptions) AS ZonedDateTime FAILS DateTimeError

FUNCTION ReplaceZoneKeepingLocal(value AS ZonedDateTime,zone AS TimeZone) AS ZonedDateTime FAILS DateTimeError

FUNCTION ReportArgumentError(failure AS ArgumentError,prefix AS STRING="") AS INTEGER FAILS IoError,StringError

FUNCTION RequestHTTP(method AS STRING,url AS STRING,headers AS LIST OF HTTPHeader,body AS LIST OF BYTE,options AS HTTPClientOptions) AS HTTPResponse FAILS IoError,HTTPError,TLSError,IndexError,StringError

FUNCTION RequestHTTP(method AS STRING,url AS URL,headers AS LIST OF HTTPHeader,body AS LIST OF BYTE,options AS HTTPClientOptions) AS HTTPResponse FAILS IoError,HTTPError,TLSError,IndexError,StringError

FUNCTION RequestPlainHTTP(method AS STRING,url AS STRING,headers AS LIST OF HTTPHeader,body AS LIST OF BYTE,options AS HTTPClientOptions) AS HTTPResponse FAILS IoError,HTTPError,IndexError,StringError

FUNCTION RequestPlainHTTP(method AS STRING,url AS URL,headers AS LIST OF HTTPHeader,body AS LIST OF BYTE,options AS HTTPClientOptions) AS HTTPResponse FAILS IoError,HTTPError,IndexError,StringError

FUNCTION Reserve[T](BYREF items AS LIST OF T, capacity AS INTEGER) AS INTEGER FAILS IndexError

FUNCTION Reserve(BYREF buffer AS ByteBuffer,capacity AS INTEGER) AS INTEGER FAILS IndexError

FUNCTION Reserve(BYREF builder AS StringBuilder,capacity AS INTEGER) AS INTEGER FAILS IndexError

FUNCTION Reserve(BYREF writer AS ByteWriter,capacity AS INTEGER) AS INTEGER FAILS IndexError

SUB Reset[T](BYREF q AS Deque[T])

SUB Reset[T](BYREF q AS Queue[T])

SUB Reset[T](BYREF q AS BoundedDeque[T])

SUB Reset[T](BYREF q AS PriorityQueue[T])

SUB Reset[T](BYREF s AS SortedSet[T])

SUB Reset[K,V](BYREF d AS SortedDictionary[K,V])

SUB Reset[T](BYREF c AS Counter[T])

SUB Reset[K,V](BYREF m AS MultiMap[K,V])

SUB Reset(BYREF bits AS BitSet)

SUB Reset[K,V](BYREF cache AS Cache[K,V])

FUNCTION ResidentCount[K,V](cache AS Cache[K,V]) AS INTEGER

FUNCTION ResidentWeight[K,V](cache AS Cache[K,V]) AS INTEGER

FUNCTION Resize[T](BYREF items AS LIST OF T, length AS INTEGER, fill AS T) AS INTEGER FAILS IndexError

FUNCTION ResizeCanvas(canvas AS Canvas,width AS INTEGER,height AS INTEGER,sampling AS Sampling=Sampling.Bilinear,space AS BlendSpace=BlendSpace.EncodedSRGB,maxPixels AS INTEGER=16777216,maxWorkingBytes AS INTEGER=268435456) AS Canvas FAILS CanvasError,IndexError,NumericError

FUNCTION ResolveBidiLevels(text AS STRING,direction AS TextDirection=TextDirection.Auto) AS LIST OF INTEGER FAILS CanvasError,IndexError,NumericError

FUNCTION ResolveHost(host AS STRING) AS LIST OF IPAddress FAILS IoError,ResolveError

FUNCTION ResolveHost(host AS STRING,timeout AS Duration) AS LIST OF IPAddress FAILS IoError,ResolveError

FUNCTION ResolveLocal(zone AS TimeZone,local AS LocalDateTime,options AS LocalResolveOptions) AS ZonedDateTime FAILS DateTimeError

FUNCTION ResolveLocal(zone AS TimeZone,local AS LocalDateTime) AS ZonedDateTime FAILS DateTimeError

FUNCTION ResolveURL(base AS URL,BYVAL reference AS URL) AS URL FAILS UrlError

FUNCTION ResolveURL(base AS STRING,reference AS STRING) AS STRING FAILS UrlError

FUNCTION ResolveURL(base AS URL,reference AS STRING) AS URL FAILS UrlError

FUNCTION ResumeTerminal(terminal AS Terminal,screen AS BOOLEAN=TRUE) AS INTEGER FAILS IoError

FUNCTION Reverse[T](BYREF items AS LIST OF T) AS INTEGER

FUNCTION Reversed[T](items AS LIST OF T) AS LIST OF T

FUNCTION Reversed(text AS STRING) AS STRING

FUNCTION RGB(red AS INTEGER,green AS INTEGER,blue AS INTEGER) AS Color FAILS CanvasError,NumericError

FUNCTION RGBA(red AS INTEGER,green AS INTEGER,blue AS INTEGER,alpha AS INTEGER=255) AS Color FAILS CanvasError,NumericError

FUNCTION RIGHT(text AS STRING, count AS INTEGER) AS STRING FAILS StringError

FUNCTION RINSTR(text AS STRING, needle AS STRING) AS INTEGER

FUNCTION RND(mode AS INTEGER=1) AS DOUBLE

FUNCTION RotateCanvas(source AS Canvas,degrees AS DOUBLE,expand AS BOOLEAN=TRUE,sampling AS Sampling=Sampling.Bilinear,space AS BlendSpace=BlendSpace.EncodedSRGB,maxPixels AS INTEGER=16777216) AS Canvas FAILS CanvasError,IndexError,NumericError

FUNCTION RotateCanvas90(canvas AS Canvas,clockwiseTurns AS INTEGER=1) AS Canvas FAILS CanvasError,IndexError,NumericError

FUNCTION RotateLeft(value AS UINT64, count AS INTEGER) AS UINT64

FUNCTION RotateRight(value AS UINT64, count AS INTEGER) AS UINT64

FUNCTION RotationTransform(degrees AS DOUBLE) AS AffineTransform FAILS CanvasError

FUNCTION ROUND(value AS DOUBLE) AS DOUBLE

FUNCTION ROUND(value AS DOUBLE, places AS INTEGER) AS DOUBLE

FUNCTION RoundDuration(value AS Duration,unit AS FixedUnit,increment AS INTEGER=1,rounding AS RoundingMode=RoundingMode.RejectLoss) AS Duration FAILS DateTimeError

FUNCTION RoundTime(value AS TimeOfDay,unit AS FixedUnit,increment AS INTEGER=1,rounding AS RoundingMode=RoundingMode.RejectLoss) AS TimeShift FAILS DateTimeError

FUNCTION Route(BYREF router AS HTTPRouter,method AS STRING,pattern AS STRING,handler AS CALLABLE(HTTPRequest,TCPConnection,BYREF HTTPExchange) FAILS (Error),values AS DICT OF STRING TO STRING) AS INTEGER FAILS HTTPError,StringError

FUNCTION Route(BYREF router AS HTTPRouter,method AS STRING,pattern AS STRING,handler AS CALLABLE(HTTPRequest,TCPConnection,BYREF HTTPExchange) FAILS (Error)) AS INTEGER FAILS HTTPError,StringError

FUNCTION Route(BYREF router AS HTTPRouter,method AS STRING,pattern AS STRING,handler AS CALLABLE(HTTPRequest) AS HTTPResponse FAILS (Error),values AS DICT OF STRING TO STRING) AS INTEGER FAILS HTTPError,StringError

FUNCTION Route(BYREF router AS HTTPRouter,method AS STRING,pattern AS STRING,handler AS CALLABLE(HTTPRequest) AS HTTPResponse FAILS (Error)) AS INTEGER FAILS HTTPError,StringError

FUNCTION RouteGet(BYREF router AS HTTPRouter,pattern AS STRING,handler AS CALLABLE(HTTPRequest,TCPConnection,BYREF HTTPExchange) FAILS (Error)) AS INTEGER FAILS HTTPError,StringError

FUNCTION RouteGet(BYREF router AS HTTPRouter,pattern AS STRING,handler AS CALLABLE(HTTPRequest) AS HTTPResponse FAILS (Error)) AS INTEGER FAILS HTTPError,StringError

FUNCTION RoutePost(BYREF router AS HTTPRouter,pattern AS STRING,handler AS CALLABLE(HTTPRequest,TCPConnection,BYREF HTTPExchange) FAILS (Error)) AS INTEGER FAILS HTTPError,StringError

FUNCTION RoutePost(BYREF router AS HTTPRouter,pattern AS STRING,handler AS CALLABLE(HTTPRequest) AS HTTPResponse FAILS (Error)) AS INTEGER FAILS HTTPError,StringError

FUNCTION RTRIM(text AS STRING) AS STRING

FUNCTION RunInteractive(executable AS STRING,arguments AS LIST OF STRING,directory AS STRING=".") AS INTEGER FAILS IoError

FUNCTION RunProcess(executable AS STRING,arguments AS LIST OF STRING,input AS STRING="",directory AS STRING=".") AS ProcessResult FAILS IoError,IndexError