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use failure::Error;
use pest::iterators::Pair;
use crate::document_tree::{
ExtraAttributes,
elements as e,
element_categories as c,
extra_attributes as a,
attribute_types as at
};
use crate::parser::{
pest_rst::Rule,
// pair_ext_parse::PairExt,
};
use super::whitespace_normalize_name;
pub fn convert_inline(pair: Pair<Rule>) -> Result<c::TextOrInlineElement, Error> {
Ok(match pair.as_rule() {
Rule::str => pair.as_str().into(),
Rule::reference => convert_reference(pair)?.into(),
Rule::substitution_ref => convert_substitution(pair)?.into(),
rule => unimplemented!("unknown rule {:?}", rule),
})
}
fn convert_reference(pair: Pair<Rule>) -> Result<e::Reference, Error> {
let name;
let refuri = None;
let refid;
let refname = vec![];
let concrete = pair.into_inner().next().unwrap();
match concrete.as_rule() {
Rule::reference_target => {
let rt_inner = concrete.into_inner().next().unwrap(); // reference_target_uq or target_name_qu
refid = Some(rt_inner.as_str().into());
name = Some(rt_inner.as_str().into());
},
Rule::reference_explicit => unimplemented!("explicit reference"),
Rule::reference_auto => unimplemented!("auto reference"),
_ => unreachable!(),
};
Ok(e::Reference::with_extra(
a::Reference { name, refuri, refid, refname }
))
}
fn convert_substitution(pair: Pair<Rule>) -> Result<e::SubstitutionReference, Error> {
let concrete = pair.into_inner().next().unwrap();
match concrete.as_rule() {
Rule::substitution_name => {
let name = whitespace_normalize_name(concrete.as_str());
Ok(a::ExtraAttributes::with_extra(
a::SubstitutionReference {
refname: vec![at::NameToken(name)]
}
))
}
_ => unreachable!()
}
}
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