string buffer consumption

string_buffer_consumption.lua

local sb = require "string.buffer"

local buff = sb.new()

buff:put("a", "", "c")
print("buff len after put: ", #buff)

local str = buff:get()
print("1st get: ", str)
print("buff len after 1st get: ", #buff)

str = buff:get()
print("2nd get: ", str)

~ $ luajit test.lua

The 1st buffer:get() will consume and empty the buffer.