xmlpath

README

xmlpath

Usage

local xmlpath = require("xmlpath")

local data = [[
<channels>
    <channel id="1" xz1="600" />
    <channel id="2"           />
    <channel id="x" xz2="600" />
</channels>
]]
local data_path = "//channel/@id"

-- xmlpath.load(data string)
local node, err = xmlpath.load(data)
if err then error(err) end

-- xmlpath.compile(path string)
local path, err = xmlpath.compile(data_path)
if err then error(err) end

-- path:iter(node)
local iter = path:iter(node)

for k, v in pairs(iter) do print(v:string()) end
-- Output:
-- 1
-- 2
-- x

Documentation

Overview

Package xmlpath provides xmlpath for lua.

Example (Full)

xmlpath.compile, xmlpath.load, xmlpath_node_ud, xmlpath_path_ud, xmlpath_iter_ud

state := lua.NewState()
Preload(state)
source := `
local xmlpath = require("xmlpath")

local data = [[
<channels>
    <channel id="1" xz1="600" />
    <channel id="2"           />
    <channel id="x" xz2="600" />
</channels>
]]
local data_path = "//channel/@id"

local node, err = xmlpath.load(data)
if err then error(err) end

local path, err = xmlpath.compile(data_path)
if err then error(err) end

local iter = path:iter(node)

for k, v in pairs(iter) do print(v:string()) end
`
if err := state.DoString(source); err != nil {
	log.Fatal(err.Error())
}

Output:

1
2
x

Index

• func Compile(L *lua.LState) int
• func IterNode(L *lua.LState) int
• func Load(L *lua.LState) int
• func LoadXml(L *lua.LState) int
• func Loader(L *lua.LState) int
• func NodeToString(L *lua.LState) int
• func PathIter(L *lua.LState) int
• func Preload(L *lua.LState)

Examples

• Package (Full)

Functions

func Compile

func Compile(L *lua.LState) int

Compile lua xmlpath.compile(xpath string) return (xmlpath_path_ud, err)

func IterNode

func IterNode(L *lua.LState) int

IterNode lua xmlpath_iter_ud:node() returns node

func Load

func Load(L *lua.LState) int

Load lua xmlpath.load(xmlpath string) return (xmlpath_node_ud, err)

func LoadXml

func LoadXml(L *lua.LState) int

Load lua xmlpath.load(xmlpath string) return (xmlpath_node_ud, err)

func Loader

func Loader(L *lua.LState) int

Loader is the module loader function.

func NodeToString

func NodeToString(L *lua.LState) int

NodeToString lua xmlpath_node_ud:string() returns string

func PathIter

func PathIter(L *lua.LState) int

PathIter lua xmlpath_path_ud:iter() returns table of nodes

func Preload

func Preload(L *lua.LState)

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

local xmlpath = require("xmlpath")