ioutil

package
v0.1.6 Latest Latest
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Published: May 6, 2022 License: BSD-3-Clause Imports: 4 Imported by: 0

README

ioutil GoDoc

Usage

local ioutil = require("ioutil")

-- ioutil.write_file()
local err = ioutil.write_file("./test/file.data", "content of test file")
if err then error(err) end

-- ioutil.read_file()
local result, err = ioutil.read_file("./test/file.data")
if err then error(err) end
if not(result == "content of test file") then error("ioutil.read_file()") end

-- ioutil.copy()
local input_fh, err = io.open("./test/file.test", "r")
assert(not err, err)
local output_fh, err = io.open("./test/file2.data", "w")
assert(not err, err)
ioutil.copy(output_fh, input_fh)
input_fh:close()
output_fh:close()

Documentation

Overview

Package ioutil implements golang package ioutil functionality for lua.

Index

Examples

Constants

This section is empty.

Variables

This section is empty.

Functions

func Copy added in v0.1.6

func Copy(L *lua.LState) int

func CopyN added in v0.1.6

func CopyN(L *lua.LState) int

func Loader

func Loader(L *lua.LState) int

Loader is the module loader function.

func Preload

func Preload(L *lua.LState)

Preload adds ioutil to the given Lua state's package.preload table. After it has been preloaded, it can be loaded using require:

local ioutil = require("ioutil")

func ReadFile

func ReadFile(L *lua.LState) int

ReadFile lua ioutil.read_file(filepath) reads the file named by filename and returns the contents, returns (string,error)

Example

ioutil.read_file(filepath)

state := lua.NewState()
Preload(state)
source := `
    local file = io.open("./test/file.data", "w")
    file:write("content of test file", "\n")
    file:close()


    local ioutil = require("ioutil")
    local result, err = ioutil.read_file("./test/file.data")
    if err then error(err) end
    print(result)
`
if err := state.DoString(source); err != nil {
	log.Fatal(err.Error())
}
Output:

content of test file

func WriteFile

func WriteFile(L *lua.LState) int

WriteFile lua ioutil.write_file(filepath, data) reads the file named by filename and returns the contents, returns (string,error)

Example

ioutil.write_file(filepath)

state := lua.NewState()
Preload(state)
source := `
    local ioutil = require("ioutil")
    local err = ioutil.write_file("./test/file.data", "content of test file")
    if err then error(err) end
`
if err := state.DoString(source); err != nil {
	log.Fatal(err.Error())
}
Output:

Types

This section is empty.

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