end
# Abstract stream class
-abstract class IOS
+abstract class Stream
# Error produced by the file stream
#
- # var ifs = new IFStream.open("donotmakethisfile.binx")
+ # var ifs = new FileReader.open("donotmakethisfile.binx")
# ifs.read_all
# ifs.close
# assert ifs.last_error != null
end
# Abstract input streams
-abstract class IStream
- super IOS
+abstract class Reader
+ super Stream
# Read a character. Return its ASCII value, -1 on EOF or timeout
fun read_char: Int is abstract
#
# ~~~
# var txt = "Hello\n\nWorld\n"
- # var i = new StringIStream(txt)
+ # var i = new StringReader(txt)
# assert i.read_line == "Hello"
# assert i.read_line == ""
# assert i.read_line == "World"
#
# ~~~
# var txt2 = "Hello\r\n\n\rWorld"
- # var i2 = new StringIStream(txt2)
+ # var i2 = new StringReader(txt2)
# assert i2.read_line == "Hello"
# assert i2.read_line == ""
# assert i2.read_line == "\rWorld"
#
# ~~~
# var txt = "Hello\n\nWorld\n"
- # var i = new StringIStream(txt)
+ # var i = new StringReader(txt)
# assert i.read_lines == ["Hello", "", "World"]
# ~~~
#
#
# ~~~
# var txt = "Hello\n\nWorld\n"
- # var i = new StringIStream(txt)
+ # var i = new StringReader(txt)
# assert i.each_line.to_a == ["Hello", "", "World"]
# ~~~
#
# Therefore, the stream should no be closed until the end of the stream.
#
# ~~~
- # i = new StringIStream(txt)
+ # i = new StringReader(txt)
# var el = i.each_line
#
# assert el.item == "Hello"
#
# ~~~
# var txt = "Hello\n\nWorld\n"
- # var i = new StringIStream(txt)
+ # var i = new StringReader(txt)
# assert i.read_all == txt
# ~~~
fun read_all: String
#
# ~~~
# var txt = "Hello\n\nWorld\n"
- # var i = new StringIStream(txt)
+ # var i = new StringReader(txt)
# var b = new FlatBuffer
# i.append_line_to(b)
# assert b == "Hello\n"
# a non-eol terminated last line was returned.
#
# ~~~
- # var i2 = new StringIStream("hello")
+ # var i2 = new StringReader("hello")
# assert not i2.eof
# var b2 = new FlatBuffer
# i2.append_line_to(b2)
fun eof: Bool is abstract
end
-# Iterator returned by `IStream::each_line`.
+# Iterator returned by `Reader::each_line`.
# See the aforementioned method for details.
class LineIterator
super Iterator[String]
# The original stream
- var stream: IStream
+ var stream: Reader
redef fun is_ok
do
end
end
-# IStream capable of declaring if readable without blocking
-abstract class PollableIStream
- super IStream
+# `ReadStream` capable of declaring if readable without blocking
+abstract class PollableReader
+ super Reader
# Is there something to read? (without blocking)
fun poll_in: Bool is abstract
end
# Abstract output stream
-abstract class OStream
- super IOS
+abstract class Writer
+ super Stream
# write a string
fun write(s: Text) is abstract
fun is_writable: Bool is abstract
end
-# Things that can be efficienlty writen to a OStream
+# Things that can be efficienlty writen to a `WriteStream`
#
# The point of this interface it to allow is instance to be efficenty
-# writen into a OStream without having to allocate a big String object
+# writen into a `WriteStream` without having to allocate a big String object
#
# ready-to-save documents usually provide this interface.
-interface Streamable
+interface Writable
# Write itself to a `stream`
# The specific logic it let to the concrete subclasses
- fun write_to(stream: OStream) is abstract
+ fun write_to(stream: Writer) is abstract
# Like `write_to` but return a new String (may be quite large)
#
# stream without having to allocate and concatenate strings
fun write_to_string: String
do
- var stream = new StringOStream
+ var stream = new StringWriter
write_to(stream)
return stream.to_s
end
end
redef class Text
- super Streamable
+ super Writable
redef fun write_to(stream) do stream.write(self)
end
# Input streams with a buffer
-abstract class BufferedIStream
- super IStream
+abstract class BufferedReader
+ super Reader
redef fun read_char
do
if last_error != null then return -1
end
# An Input/Output Stream
-abstract class IOStream
- super IStream
- super OStream
+abstract class Duplex
+ super Reader
+ super Writer
end
# Stream to a String.
#
-# Mainly used for compatibility with OStream type and tests.
-class StringOStream
- super OStream
+# Mainly used for compatibility with Writer type and tests.
+class StringWriter
+ super Writer
private var content = new Array[String]
redef fun to_s do return content.to_s
# Stream from a String.
#
-# Mainly used for compatibility with IStream type and tests.
-class StringIStream
- super IStream
+# Mainly used for compatibility with Reader type and tests.
+class StringReader
+ super Reader
# The string to read from.
var source: String
nitlanguage / nit.git / blobdiff