Function yaml_peg::dumper::dump

pub fn dump<I>(nodes: I) -> String where
    I: IntoIterator,
    I::Item: Dumper, 

Dump the YAML data in to block format.

Dumper will use plain string when the string is none-wrapped, otherwise it use literal string and trim the last white spaces.

use yaml_peg::{dump, node};
let doc = dump(vec![node!({
    node!("a") => node!("b"),
    node!("c") => node!("d"),
})]);
assert_eq!(doc, "a: b\nc: d\n");

When calling parse function then dump the string, the string can be reformatted.