Update YAML API.

Cargo.toml

@@ -21,5 +21,5 @@ zip = "0.5"
 reqwest = { version = "0.11", features = ["blocking"] }
 actix-web = "3.3"
 actix-files = "0.5"
-yaml-peg = "0.10"
+yaml-peg = "0.12"
 pulldown-cmark = "0.8"

src/loader/content.rs

@@ -58,7 +58,7 @@ struct FragMap(HashMap<String, HashMap<usize, String>>);
 impl FragMap {
     fn new(slide: &Node, count: &mut usize) -> Result<Self, Error> {
         let mut frag_map = HashMap::new();
-        for h in slide.get_default("fragment", &vec![], Node::as_array)? {
+        for h in slide.get_default("fragment", vec![], Node::as_array)? {
             for (k, v) in h.as_map()?.iter() {
                 let k = k.as_str()?;
                 let v = v.as_str()?;
@@ -177,8 +177,7 @@ pub(crate) fn content_block(
         .iter()
         .enumerate()
     {
-        let empty = vec![];
-        let stack = slide.get_default(title, &empty, Node::as_array)?;
+        let stack = slide.get_default(title, vec![], Node::as_array)?;
         if stack.is_empty() {
             continue;
         }

src/loader/mod.rs

@@ -203,7 +203,7 @@ fn load_main(yaml: Array<RcRepr>, v: &Anchors, mount: &str) -> Result<String, Er
         let slide = slide.as_anchor(v);
         doc += "<section>";
         doc += &slide_block(&slide, v, &bg, i == 0)?;
-        for slide in slide.get_default("sub", &vec![], Node::as_array)? {
+        for slide in slide.get_default("sub", vec![], Node::as_array)? {
             doc += &slide_block(&slide.as_anchor(v), v, &bg, false)?;
         }
         if i == 0 {
@@ -225,8 +225,7 @@ fn load_main(yaml: Array<RcRepr>, v: &Anchors, mount: &str) -> Result<String, Er
                     continue;
                 }
                 doc += &format!("<li><a href=\"#/{}\">{}</a></li>", i, t);
-                let empty = vec![];
-                let sub = slide.get_default("sub", &empty, Node::as_array)?;
+                let sub = slide.get_default("sub", vec![], Node::as_array)?;
                 if sub.is_empty() {
                     continue;
                 }