xtree 0.1.8

A simple general purpose tree data structure.
Documentation
# xtree
A simple rust general purpose tree data structure.
#### Homepage
[crates.io](https://crates.io/crates/xtree)
#### Documentions
[docs.rs](https://docs.rs/xtree/)
#### Sources
[github](https://github.com/xstater/xtree)
## Construct a tree
```
extern crate xtree;
use xtree::*;
let tree =
    tr!(1)
        / (tr!(2)
            / tr!(3)
            / tr!(4))
        / tr!(5);
```
It will construct a tree like below
```
//      1
//     / \
//   2    5
//  / \
// 3   4
```
## Depth-First iterate a tree
```
for value in tree.df_iter(){
    print!("{} ",value);
}
```
It will print ```1 2 3 4 5``` in console.
## Breadth-First iterate a tree and Change the value
```
for value in tree.bf_iter_mut(){
    *value += 1;
    print!("{} ",value);
}
```
It will print ```2 3 6 4 5``` in console.
## Freely visit node with Cursor
```
let mut cursor = tree.cursor();
```
create a read-only cursor to root node.
```
cursor.move_child(0);
```
move this cursor to the first child node.
```
println!("{}",cursor.current());
```
get the value of which it pointing now.<br>
it will print ```2``` in console.
## Advanced usage
[More exmples](https://github.com/xstater/xtree/tree/master/examples)