"#iota.isbpl" include

native stream

def STREAM_CREATE_FILE_IN riota =STREAM_CREATE_FILE_IN
def STREAM_CREATE_FILE_OUT iota =STREAM_CREATE_FILE_OUT
def STREAM_CREATE_SOCKET   iota =STREAM_CREATE_SOCKET
def STREAM_CLOSE           iota =STREAM_CLOSE
def STREAM_READ            iota =STREAM_READ
def STREAM_WRITE           iota =STREAM_WRITE

"not implemented:" #
    "def STREAM_AREAD           iota =STREAM_AREAD" #
    "def STREAM_AWRITE          iota =STREAM_AWRITE" #

func stream.readline {
    def id =id
    def byte 0 =byte
    def array 0 anew =array
    def tmparray 0 anew =tmparray
    def i 1 neg =i
    while { ( i 1 + =i ) ( byte 10 eq not ) } {
        id STREAM_READ stream =byte
        array ( ( array alen 1 + anew ) dup =tmparray ) 0 0 ( array alen ) acopy =array
        array dup alen 1 - byte _char aput
    }
    array ( ( array alen 1 - anew ) dup =tmparray 0 0 ) ( tmparray alen ) acopy _string
}

func stream.write {
    def id =id
    def str _array =str 
    def i 1 neg =i
    while { ( i 1 + =i ) ( i str alen lt ) } {
        str i aget id STREAM_WRITE stream
    }
}