io - reimplementation of the Lua standard io library
io is the Monolith re-implementation of the Lua-standard library of the same name. It is intended to function identically.
io is a global table and does not need to be required.
For the official documentation, see https://lua.org/manual/5.3/manual.html#6.8.
The standard input stream. Controlled by a metatable.
The standard output stream. Controlled by a metatable.
The standard error stream. Controlled by a metatable.
input([stream:table]): table or nil, string
Returns the current standard input stream. If the stream argument is specified, will attempt to set the input stream to stream.
output([stream:table]): table or nil, string
Controls the current standard output stream. Behavior is otherwise identical to io.input.
error([stream:table]): table or nil, string
Controls the current standard error stream. Behavior is otherwise identical to io.input. This function is nonstandard.
Write a concatenation of the arguments to the standard output stream. Analogous to io.output():write(...).
Read from the standard input stream. Analogous to io.input():read(...). Note that for most programs it is generally better to use readline(3).
open(file:string[, mode:string]): table or nil, string
Attempts to open the specified file. On success, returns a buffered stream. mode defaults to "r", and may contain any of the characters r, w, a, and b. Note that a is not valid alongside r or w. b specifies that the file should be opened in binary mode.
popen(program:string[, mode:string]): table or nil, string
Attempts to open the provided program, returning a handle to the program's input or output depending which mode is specified. Uses pipe(3) for piping.
Flushes the provided stream, or the standard output.
close([stream:table]): boolean or nil, string
Close the provided stream. If called with no arguments, returns nil, "cannot close standard file".
type(stream:table): string or nil
Returns the type of the provided table stream: "file" if the stream is a file, "closed file" if the stream is a closed file, and nil otherwise.
Monolith System Interfaces (c) 2020 Ocawesome101 under the GNU GPLv3.
buffer(3), readline(3), pipe(3)