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#![allow(missing_docs)]
use std::fmt;
pub enum Term {
Any,
File,
Base,
LastMod,
Tag(String)
}
pub struct Clause(pub Term, pub String);
pub struct Query {
pub clauses: Vec<Clause>,
pub window: Option<(u32, Option<u32>)>,
}
pub struct Count {
pub clauses: Option<Vec<Clause>>,
pub group: Option<String>
}
impl fmt::Display for Term {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Term::Any => f.write_str("any"),
Term::File => f.write_str("file"),
Term::Base => f.write_str("base"),
Term::LastMod => f.write_str("modified-since"),
Term::Tag(ref tag) => f.write_str(&*tag)
}
}
}
impl fmt::Display for Clause {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{} {}", self.0, self.1)
}
}
impl fmt::Display for Query {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
for clause in &self.clauses {
try!(clause.fmt(f));
}
match self.window {
Some((a, Some(b))) => write!(f, " window {}:{}", a, b),
Some((a, None)) => write!(f, " window {}:", a),
None => Ok(())
}
}
}