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core, input: add flex_trait

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🪞👃🪞 2025-07-29 14:17:01 +03:00
parent 360b404b69
commit 8cbd7dd8e8
7 changed files with 201 additions and 98 deletions
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39
input/src/input_dsl.rs
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@ -54,20 +54,37 @@ impl<E: Clone + Ord, C> EventMap<E, C> {
}
/// Create event map from string.
pub fn from_source (source: impl AsRef<str>) -> Usually<Self> where E: From<Arc<str>> {
Self::from_dsl(source.as_ref())
Self::from_dsl(&mut source.as_ref())
}
/// Create event map from DSL tokenizer.
pub fn from_dsl (mut dsl: impl Dsl) -> Usually<Self> where E: From<Arc<str>> {
pub fn from_dsl <'s, D: DslExp<'s> + 's> (dsl: &'s mut D) -> Usually<Self> where E: From<Arc<str>> {
let mut map: Self = Default::default();
while let Some(dsl) = dsl.exp_next()? {
if let Some(path) = dsl.text()? {
map.0.extend(Self::from_path(PathBuf::from(path.as_ref() as &str))?.0)
} else if dsl.exp_head()?.key()? == Some("if") {
todo!()
//map.add(sym.into(), Binding::from_dsl(dsl.exp_tail())?);
} else if let Some(sym) = dsl.exp_head()?.sym()? {
todo!()
//map.add(sym.into(), Binding::from_dsl(dsl.exp_tail())?);
let mut head: Option<D> = dsl.head()?;
let mut tail: Option<D> = dsl.tail()?;
loop {
if let Some(ref token) = head {
if let Some(ref text) = token.text()? {
map.0.extend(Self::from_path(PathBuf::from(text))?.0);
continue
}
//if let Some(ref exp) = token.exp()? {
////_ if let Some(sym) = token.head()?.sym()?.as_ref() => {
////todo!()
////},
////_ if Some(&"if") == token.head()?.key()?.as_ref() => {
////todo!()
////},
//return Err(format!("unexpected: {:?}", token.exp()).into())
//}
return Err(format!("unexpected: {token:?}").into())
} else {
break
}
if let Some(next) = tail {
head = next.head()?;
tail = next.tail()?;
} else {
break
}
}
Ok(map)