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use super::*;
impl WoTeXFunction for Integrate {}
impl Integrate {
pub fn split_vars(args: Vec<ASTNode>) -> (Sequence, Vec<List>) {
let mut rest = args.into_iter();
let expr = match rest.next() {
Some(ASTNode::Sequence(s)) => s,
_ => Sequence::default(),
};
let vars = rest.filter(|e| e.is_list()).map(|e| e.as_list().unwrap()).collect();
(expr, vars)
}
pub fn int(expr: Sequence, vars: Vec<List>, regional: bool) -> Box<Integrate> {
box Self { kind: String::from("int"), regional, expr, vars }
}
}
impl UpperHex for Integrate {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
todo!()
}
}
impl Integrate {
fn write_one_head(&self, f: &mut Formatter<'_>, head: &List) -> std::fmt::Result {
write!(f, "\\{} ", self.kind)?;
match head.get(1) {
None => {}
Some(s) => {
write!(f, "_{{{:x}}}", s)?;
}
}
match head.get(2) {
None => {}
Some(s) => {
write!(f, "^{{{:x}}}", s)?;
}
}
Ok(())
}
}
impl LowerHex for Integrate {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
if self.regional {
match self.vars.last() {
Some(s) => self.write_one_head(f, s)?,
None => {}
}
}
else {
for var in self.vars.iter().rev() {
self.write_one_head(f, var)?
}
};
write!(f, "{:x}", self.expr)?;
for var in &self.vars {
match var.get(0) {
Some(s) => write!(f, " \\,\\mathrm{{{:x}}}", s)?,
None => {}
}
}
Ok(())
}
}