tac

package

v0.1.6 Latest Latest Go to latest Published: May 6, 2022 License: BSD-3-Clause Imports: 5 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/alexjx/gopher-lua-libs

Links

Open Source Insights

README ¶

tac

Usage

local file = io.open("data.txt", "w")
file:write("1", "\n")
file:write("2", "\n")
file:write("3", "\n")

local tac = require("tac")
local scanner, err = tac.open("data.txt")
if err then error(err) end

while true do
    local line = scanner:line()
    if line == nil then break end
    print(line)
end
scanner:close()

-- Output:
-- 3
-- 2
-- 1

Documentation ¶

Overview ¶

Package tac implements file scanner (from end to up) functionality for lua.

Example ¶

tac.open(), tac_ud:line(), tac_ud:close()

state := lua.NewState()
Preload(state)
source := `
        local file = io.open("./test/file.txt", "w")
        file:write("1", "\n")
        file:write("2", "\n")
        file:write("3", "\n")

        local tac = require("tac")
        local scanner, err = tac.open("./test/file.txt")
        if err then error(err) end

        while true do
            local line = scanner:line()
            if line == nil then break end
            print(line)
        end
        scanner:close()
`
if err := state.DoString(source); err != nil {
	log.Fatal(err.Error())
}