用于openwrt中操作ini配置文件的两个lua脚本_golang操作ini文件
转载注明来源: 本文链接 来自osnosn的博客，写于 2023-03-19.
参考
- 【Lua 5.1 Reference Manual】
openwrt, op18,op19,op21,op22 都是用的 lua-5.1.5 。
说明
给有需要的人参考。主要是参考思路。
这个思路，我也是在网上搜的。
写的不好，还能再优化。测试过，确实能用。
凑合看，凑合用。
lua操作shell配置文件
op中没有bash。它的sh不支持数组。
# filename: test-pw.sh
# 此文件将会被程序重写。支持注释,用'#'。
# This file will be rewrited by program. allow comments with '#'.
# 配置项中不要包含引号(' ")否则会出错。
user_0='username0' #id
pwd_0='password0' #pwd
type_0='type0'
user_1='user2' #id
pwd_1='password2' #pwd
type_1='type2'
#!/usr/bin/lua
aa=assert(dofile('./shell_file.lua'))
inifile='/path_to/test-pw.sh'
bb=aa.read(inifile)
print(aa.get('1','user'))
print(aa.set('1','user','123456'))
print(aa.save())
#!/usr/bin/lua
-- filename: shell_file.lua
local MM={}
MM.filename=nil
function MM.read(statfile)
MM.ini={}
MM.filename=statfile
local fp=io.open(statfile,"rb")
if fp==nil then -- file not exists
return 'stat file not found'
else
local sect
for line in fp:lines() do
repeat -- use break as continue
line=MM.trim_sp(line)
if line:find('#')==1 then break end
local n1=line:find('=') -- find =
if n1 ~= nil and n1>0 then
local num,key,val=MM.split_conf(line)
n1,n2,sect=val:find('^(.-)%s+#') --#
if sect ~= nil and #sect>0 then
val=sect
end
if num ~= nil and key ~= nil then
if MM.ini[num] == nil then
MM.ini[num]={}
end
MM.ini[num][key]=MM.trim(val)
end
end
until true
end
fp:close()
end
return nil
end
function MM.get(node,key) -- get data
if MM.ini[node] ~= nil then
if MM.ini[node][key] ~= nil then
return MM.ini[node][key]
end
end
return ''
end
function MM.set(node,key,val) -- set data
if MM.ini[node] ~= nil then
if MM.ini[node][key] ~= nil then
MM.ini[node][key]=val
return nil
end
end
return 'Not set'
end
function MM.trim_sp(s)
s=s:match("^%s*(.-)%s*$")
return s
end
function MM.trim(s)
s=s:match("^[%s\"']*(.-)[%s\"']*$")
return s
end
function MM.split_conf(str)
local n1,n2,kk,vv=string.find(str, '^%s*(.-)%s*=%s*(.-)%s*$')
if kk ~= nil or vv ~= nil then
if #kk > 0 then
local n1,n2,k1,k2=string.find(kk, '^(.-)_(%d*)$')
if k1 ~= nil or k2 ~= nil then
if #k1 <1 then
return nil,nil,nil
end
if #k2 >0 then
return k2,k1,vv
end
return '_',k1,vv
end
return '_',kk,vv
end
return nil,nil,nil
end
return nil,nil,nil
end
function MM.save()
if MM.filename == nil then return nil end
local nixio=require "nixio"
local fp=io.open(MM.filename,"rb")
local wfp=nixio.open(MM.filename..'.cache',"w")
if fp==nil then -- file not exists
return 'stat file not found'
end
if wfp==nil then -- write file fail
fp:close()
return 'write file fail'
end
if true then
wfp:lock('lock') --这是一个阻塞操作，防止多个例程同时写，POSIX lockf()
for line_org in fp:lines() do
repeat -- use break as continue
local line=MM.trim_sp(line_org)
if line:find('#')==1 then wfp:write(line_org..'\n') break end
local comment=''
local cmt
local n1=line:find('=') --find =
if n1 ~= nil and n1>0 then
local num,key,val=MM.split_conf(line)
n1,n2,sect,cmt=val:find('^(.-)%s+(#.*)$') --#
if sect ~= nil and #sect>0 then
val=sect --ignored
comment=cmt
end
if #comment>0 then comment=' '..comment end
if num ~= nil and MM.ini[num] ~= nil and MM.ini[num][key] ~= nil then
wfp:write(' '..key..'_'..num.."='"..MM.ini[num][key].."'"..comment..'\n')
else
wfp:write(line_org..'\n')
end
else
wfp:write(line_org..'\n')
end
until true
end
fp:close()
wfp:lock('ulock')
wfp:close()
local fs=require "nixio.fs"
fs.move(MM.filename,MM.filename..os.date('-%Y%m%d_%H%M%S.bak'))
fs.move(MM.filename..'.cache',MM.filename)
end
return nil
end
return MM
lua操作ini配置文件
# filename: myini.ini
# 配置项中不要含有引号(' "),否则会出错。
//test
[list] //test
// test
id22 = testtesttest //test
[auth]
id22 = read,modify #权限列表
id33 = read,write
#!/usr/bin/lua
aa=assert(dofile('./ini_file.lua'))
inifile='/path_to/myini.ini'
bb=aa.read(inifile)
print(aa.get('list','id22'))
aa.set('list','id22','test123test')
print(aa.save())
#!/usr/bin/lua
-- filename: ini_file.lua
local MM={}
MM.sep='\t*\t'
MM.filename=nil
function MM.read(statfile) -- get data from .ini
MM.ini={}
MM.filename=statfile
local sector='_'
local fp=io.open(statfile,"rb")
if fp==nil then -- file not exists
return 'stat file not found'
else
for line in fp:lines() do
repeat -- use break as continue
line=MM.trim_sp(line)
if line:find('#')==1 then break end
if line:find('//')==1 then break end
local n1,n2,sect=line:find('^%[(.-)%]') --find sector
if sect ~= nil and #sect>0 then
sector=sect
break
end
local n1=line:find('=') -- find =
if n1 ~= nil and n1>0 then
local key,val=MM.split_conf(line)
n1,n2,sect=val:find('^(.-)%s+//') --//
if sect ~= nil and #sect>0 then
val=sect
end
n1,n2,sect=val:find('^(.-)%s+#') --#
if sect ~= nil and #sect>0 then
val=sect
end
if key ~= nil then
if MM.ini[sector] == nil then
MM.ini[sector]={}
end
MM.ini[sector][key]=MM.trim(val)
end
end
until true
end
fp:close()
end
return nil
end
function MM.get(node,key) -- get data
if MM.ini[node] ~= nil then
if MM.ini[node][key] ~= nil then
return MM.ini[node][key]
end
end
return ''
end
function MM.set(node,key,val) -- set data
if MM.ini[node] ~= nil then
if MM.ini[node][key] ~= nil then
MM.ini[node][key]=val
return nil
end
end
return 'Not set'
end
function MM.trim_sp(s)
s=s:match("^%s*(.-)%s*$")
return s
end
function MM.trim(s)
s=s:match("^[%s\"']*(.-)[%s\"']*$")
return s
end
function MM.split_conf(str)
local n1,n2,kk,vv=string.find(str, '^%s*(.-)%s*=%s*(.-)%s*$')
if kk ~= nil or vv ~= nil then
if #kk > 0 then
return kk,vv
end
return nil,nil
end
return nil,nil
end
function MM.save()
if MM.filename == nil then return nil end
local sector='_'
local nixio=require "nixio"
local fp=io.open(MM.filename,"rb")
local wfp=nixio.open(MM.filename..'.cache',"wb")
if fp==nil then -- file not exists
return 'stat file not found'
end
if wfp==nil then -- write file fail
fp:close()
return 'write file fail'
end
if true then
wfp:lock('lock') --这是一个阻塞操作，防止多个例程同时写，POSIX lockf()
for line_org in fp:lines() do
repeat -- use break as continue
local line=MM.trim_sp(line_org)
if line:find('#')==1 then wfp:write(line_org..'\n') break end
if line:find('//')==1 then wfp:write(line_org..'\n') break end
local n1,n2,sect=line:find('^%[(.-)%]') --find sector
if sect ~= nil and #sect>0 then
sector=sect
wfp:write(line_org..'\n')
break
end
local comment=''
local cmt
local n1=line:find('=') --find =
if n1 ~= nil and n1>0 then
local key,val=MM.split_conf(line)
n1,n2,sect,cmt=val:find('^(.-)%s+(//.*)$') --//
if sect ~= nil and #sect>0 then
val=sect --ignored
comment=cmt
end
n1,n2,sect,cmt=val:find('^(.-)%s+(#.*)$') --#
if sect ~= nil and #sect>0 then
val=sect --ignored
comment=cmt
end
if #comment>0 then comment=' '..comment end
if key ~= nil and MM.ini[sector] ~= nil and MM.ini[sector][key] ~= nil then
wfp:write(' '..key..' = '..MM.ini[sector][key]..comment..'\n')
else
wfp:write(line_org..'\n')
end
else
wfp:write(line_org..'\n')
end
until true
end
fp:close()
wfp:lock('ulock')
wfp:close()
local fs=require "nixio.fs"
fs.move(MM.filename,MM.filename..os.date('-%Y%m%d_%H%M%S.bak'))
fs.move(MM.filename..'.cache',MM.filename)
end
return nil
end
return MM
- 别人的例子【LUA读写ini配置】。
golang操作ini
package main
import (
"mypkg/configfile"
}
func main() {
var myConfig *configfile.Config = nil
myConfig = new(configfile.Config)
myConfig.InitConfig("/path_to/myini.ini")
path := myConfig.Read("default", "path")
}
package configfile
//这个程序，是只读操作，所以没加锁。如果要修改ini文件，就需要加文件锁
import (
"bufio"
"io"
"os"
"strings"
)
/*
# unix 风格配置文件
[default]
path= c:/go
version = 1.44
[test]
num = 666
something = wrong #注释1
#fdfdfd = fdfdfd 注释整行
refer= refer //注释3
#----调用方法---
myConfig := new(configfile.Config)
myConfig.InitConfig("c:/config.txt")
fmt.Println(myConfig.Read("default", "path"))
*/
//const middle = "\t*\t"
type Config struct {
Mymap map[string]string
strcet string
Sep string
}
func (c *Config) InitConfig(path string) {
c.Mymap = make(map[string]string)
c.Sep="\t*\t" //middle
f, err := os.Open(path)
if err != nil {
panic(err)
}
defer f.Close()
r := bufio.NewReader(f)
for {
b, _, err := r.ReadLine()
if err != nil {
if err == io.EOF {
break
}
panic(err)
}
s := strings.TrimSpace(string(b))
if strings.Index(s, "#") == 0 {
continue
}
if strings.Index(s, "//") == 0 {
continue
}
n1 := strings.Index(s, "[")
n2 := strings.LastIndex(s, "]")
if n1 > -1 && n2 > -1 && n2 > n1+1 {
c.strcet = strings.TrimSpace(s[n1+1 : n2])
continue
}
if len(c.strcet) == 0 {
continue
}
index := strings.Index(s, "=")
if index < 0 {
continue
}
frist := strings.TrimSpace(s[:index])
if len(frist) == 0 {
continue
}
second := strings.TrimSpace(s[index+1:])
pos := strings.Index(second, "\t#")
if pos > -1 {
second = second[0:pos]
}
pos = strings.Index(second, " #")
if pos > -1 {
second = second[0:pos]
}
pos = strings.Index(second, "\t//")
if pos > -1 {
second = second[0:pos]
}
pos = strings.Index(second, " //")
if pos > -1 {
second = second[0:pos]
}
second=strings.TrimSpace(second)
/*
if len(second) == 0 {
continue
}
*/
key := c.strcet + c.Sep + frist
c.Mymap[key] = second
}
}
func (c Config) Read(node, key string) string {
key = node + c.Sep + key
v, found := c.Mymap[key]
if !found {
return ""
}
return v
}
----end----
转载注明来源: 本文链接 https://www.cnblogs.com/osnosn/p/17232829.html
来自 osnosn的博客 https://www.cnblogs.com/osnosn/ .
