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#!/usr/bin/env lua
--[[
* A pure lua library to translate between:
* lua table <--> uci config
*
* For UCI: http://wiki.openwrt.org/doc/techref/uci
* http://wiki.openwrt.org/doc/uci
*
* Copyright (C) 2015 Hua Shao <nossiac@163.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
]]
local shuci = {}
function shuci.decode(path)
function file_exists(name)
local f=io.open(name,"r")
if f~=nil then io.close(f) return true else return false end
end
local function linebreaker(str)
local i,_ = string.find(str, "([^%s])")
if not i then return nil end
if string.find(str, "config%s+%w+") then
local i,j,k,v = string.find(str, "config%s+([%w-_]+)%s*['\"]*([^%s\'\"]*)")
return "section", k, v
elseif string.find(str, "option%s+%w+") then
local i,j,k,v = string.find(str, "option%s+([%w-_]+)%s*['\"]([^'\"]+)['\"]")
if not k or not v then
i,j,k,v = string.find(str, "option%s+([%w-_]+)%s*['\"]*([^%s\'\"]*)")
end
return "option", k, v
elseif string.find(str, "list%s+%w+") then
local i,j,k,v = string.find(str, "list%s+([%w-_]+)%s*['\"]([^'\"]+)['\"]")
if not k or not v then
i,j,k,v = string.find(str, "list%s+([%w-_]+)%s*['\"]*([^%s\'\"]*)")
end
return "list", k, v
end
end
if not file_exists(path) then
return
end
local _sect_ = nil
local t = {}
for line in io.lines(path) do
local _type, _name, _value = linebreaker(line)
if _type == "section" then
if not t[_name] then
t[_name] = {}
_sect_ = t[_name]
if _value then
_sect_[".name"] = _value
end
else
if t[_name][1] then -- already a list
else -- upgrade from dict to array
local _t = t[_name]
t[_name] = {}
t[_name][1] = _t
end
t[_name][#t[_name]+1] = {}
_sect_ = t[_name][#t[_name]]
if _value then
_sect_[".name"] = _value
end
end
end
if _type == "option" then
if _name and _value then
_sect_[_name] = _value
end
end
if _type == "list" and _name and _value then
local idx
if not _sect_[_name] then
_sect_[_name] = {}
_sect_[_name][1] = _value
else
idx = #_sect_[_name]
_sect_[_name][idx+1] = _value
end
end
end
return t
end
function shuci.encode(t, path)
local dump = io.write
if path then
local fp = io.open(path, "w")
dump = function(str) fp:write(str) end
end
for stype,ss in pairs(t) do
if #ss > 0 then
for _,s in ipairs(ss) do
dump(string.format("config\t%s\t'%s'\n", stype, s[".name"] or ""))
for k,v in pairs(s) do
if type(v) == "table" then
for _,vv in ipairs(v) do
dump(string.format("\tlist\t%s\t'%s'\n",k,vv))
end
elseif type(v) == "string" and k ~= ".name" then
dump(string.format("\toption\t%s\t'%s'\n",k,v))
elseif type(v) == "number" and k ~= ".name" then
dump(string.format("\toption\t%s\t'%s'\n",k,tonumber(v)))
end
end
dump("\n")
end
else
dump(string.format("config\t%s\t'%s'\n", stype, ss[".name"] or ""))
for k,v in pairs(ss) do
if type(v) == "table" then
for _,vv in ipairs(v) do
dump(string.format("\tlist\t%s\t'%s'\n",k,vv))
end
elseif type(v) == "string" and k ~= ".name" then
dump(string.format("\toption\t%s\t'%s'\n",k,v))
elseif type(v) == "number" and k ~= ".name" then
dump(string.format("\toption\t%s\t'%s'\n",k,tonumber(v)))
end
end
end
end
end
return shuci
|
