semilattice-script

Example

```rust use semilattice_script::*;

let dir="./ss-test/"; if std::path::Path::new(dir).exists(){ std::fs::removedirall(dir).unwrap(); std::fs::createdirall(dir).unwrap(); }else{ std::fs::createdirall(dir).unwrap(); }

let mut ss=SemilatticeScript::new(dir).unwrap();

let mut ss=SemilatticeScript::new(dir).unwrap();

//update data. ss.exec(r#" Noah US Liam US Olivia UK "#);

//select data. let r=ss.exec(r#"

find persons.
"#); println!("{}",r);

//seaech data let r=ss.exec(r#"

find persons from the US.
"#); println!("{}",r);

//use javascript let r=ss.exec(r#" const ymd=function(){ const now=new Date(); return now.getFullYear()+"-"+(now.getMonth()+1)+"-"+now.getDate(); }; const uk="UK";

find persons from the .
"#); println!("{}",r);

```