diff options
author | chai <chaifix@163.com> | 2021-10-30 11:42:13 +0800 |
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committer | chai <chaifix@163.com> | 2021-10-30 11:42:13 +0800 |
commit | 53364ddc2e09362cb17432abf4fb598557554a9f (patch) | |
tree | 8d2deafc82aceb13db31938a2aecc70927fc1457 /Data/Libraries/LDoc/ldoc/builtin/io.lua | |
parent | 42ec7286b2d36a9ba22925f816a17cb1cc2aa5ce (diff) |
+ LDoc
Diffstat (limited to 'Data/Libraries/LDoc/ldoc/builtin/io.lua')
-rw-r--r-- | Data/Libraries/LDoc/ldoc/builtin/io.lua | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/Data/Libraries/LDoc/ldoc/builtin/io.lua b/Data/Libraries/LDoc/ldoc/builtin/io.lua new file mode 100644 index 0000000..c97cb4e --- /dev/null +++ b/Data/Libraries/LDoc/ldoc/builtin/io.lua @@ -0,0 +1,162 @@ +--- Reading and Writing Files. +-- @module io + +local io = {} + +-- luacheck: ignore 241 +local file = {} + +--- +-- Equivalent to `file:close()`. Without a `file`, closes the default +-- output file. +function io.close(file) end + +--- +-- Equivalent to `file:flush` over the default output file. +function io.flush() end + +--- +-- When called with a file name, it opens the named file (in text mode), +-- and sets its handle as the default input file. When called with a file +-- handle, it simply sets this file handle as the default input file. When +-- called without parameters, it returns the current default input file. +-- In case of errors this function raises the error, instead of returning an +-- error code. +function io.input(file) end + +--- +-- Opens the given file name in read mode and returns an iterator function +-- that, each time it is called, returns a new line from the file. Therefore, +-- the construction +-- for line in io.lines(filename) do *body* end +-- will iterate over all lines of the file. When the iterator function detects +-- the end of file, it returns nil (to finish the loop) and automatically +-- closes the file. +-- The call `io.lines()` (with no file name) is equivalent to +-- `io.input():lines()`; that is, it iterates over the lines of the default +-- input file. In this case it does not close the file when the loop ends. +function io.lines(filename) end + +--- +-- This function opens a file, in the mode specified in the string `mode`. It +-- returns a new file handle, or, in case of errors, nil plus an error message. +-- The `mode` string can be any of the following: +-- "r": read mode (the default); +-- "w": write mode; +-- "a": append mode; +-- "r+": update mode, all previous data is preserved; +-- "w+": update mode, all previous data is erased; +-- "a+": append update mode, previous data is preserved, writing is only +-- allowed at the end of file. +-- The `mode` string can also have a '`b`' at the end, which is needed in +-- some systems to open the file in binary mode. This string is exactly what +-- is used in the standard C function `fopen`. +function io.open(filename , mode) end + +--- +-- Similar to `io.input`, but operates over the default output file. +function io.output(file) end + +--- +-- Starts program `prog` in a separated process and returns a file handle +-- that you can use to read data from this program (if `mode` is `"r"`, +-- the default) or to write data to this program (if `mode` is `"w"`). +-- This function is system dependent and is not available on all platforms. +function io.popen(prog , mode) end + +--- +-- Equivalent to `io.input():read`. +function io.read(...) end + +-- * `io.stderr`: Standard error. +-- * `io.stdin`: Standard in. +-- * `io.stdout`: Standard out. + +--- +-- Returns a handle for a temporary file. This file is opened in update +-- mode and it is automatically removed when the program ends. +function io.tmpfile() end + +--- +-- Checks whether `obj` is a valid file handle. Returns the string `"file"` +-- if `obj` is an open file handle, `"closed file"` if `obj` is a closed file +-- handle, or nil if `obj` is not a file handle. +function io.type(obj) end + +--- +-- Equivalent to `io.output():write`. +function io.write(...) end + +--- +-- Closes `file`. Note that files are automatically closed when their +-- handles are garbage collected, but that takes an unpredictable amount of +-- time to happen. +function file:close() end + +--- +-- Saves any written data to `file`. +function file:flush() end + +--- +-- Returns an iterator function that, each time it is called, returns a +-- new line from the file. Therefore, the construction +-- for line in file:lines() do *body* end +-- will iterate over all lines of the file. (Unlike `io.lines`, this function +-- does not close the file when the loop ends.) +function file:lines() end + +--- +-- Reads the file `file`, according to the given formats, which specify +-- what to read. For each format, the function returns a string (or a number) +-- with the characters read, or nil if it cannot read data with the specified +-- format. When called without formats, it uses a default format that reads +-- the entire next line (see below). +-- The available formats are +-- "*n": reads a number; this is the only format that returns a number +-- instead of a string. +-- "*a": reads the whole file, starting at the current position. On end of +-- file, it returns the empty string. +-- "*l": reads the next line (skipping the end of line), returning nil on +-- end of file. This is the default format. +-- *number*: reads a string with up to this number of characters, returning +-- nil on end of file. If number is zero, it reads nothing and returns an +-- empty string, or nil on end of file. +function file:read(...) end + +--- +-- Sets and gets the file position, measured from the beginning of the +-- file, to the position given by `offset` plus a base specified by the string +-- `whence`, as follows: +-- "set": base is position 0 (beginning of the file); +-- "cur": base is current position; +-- "end": base is end of file; +-- In case of success, function `seek` returns the final file position, +-- measured in bytes from the beginning of the file. If this function fails, +-- it returns nil, plus a string describing the error. +-- The default value for `whence` is `"cur"`, and for `offset` is 0. Therefore, +-- the call `file:seek()` returns the current file position, without changing +-- it; the call `file:seek("set")` sets the position to the beginning of the +-- file (and returns 0); and the call `file:seek("end")` sets the position +-- to the end of the file, and returns its size. +function file:seek(whence , offset) end + +--- +-- Sets the buffering mode for an output file. There are three available +-- modes: +-- +-- * "no": no buffering; the result of any output operation appears immediately. +-- * "full": full buffering; output operation is performed only when the +-- buffer is full (or when you explicitly `flush` the file (see `io.flush`)). +-- * "line": line buffering; output is buffered until a newline is output or +-- there is any input from some special files (such as a terminal device). +-- For the last two cases, `size` specifies the size of the buffer, in +-- bytes. The default is an appropriate size. +function file:setvbuf(mode , size) end + +--- +-- Writes the value of each of its arguments to the `file`. The arguments +-- must be strings or numbers. To write other values, use `tostring` or +-- `string.format` before `write`. +function file:write(...) end + +return io |