Css3 parser tryout

Cargo.toml

@@ -42,7 +42,7 @@ harness = false
 phf = { version = "0.11.2", features = ["macros"] }
 derive_more = "0.99"
 serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0"
+serde_json = {version = "1.0", features = ["preserve_order"]}
 serde_derive = "1.0"
 regex = "1"
 lazy_static = "1.4"

Makefile

@@ -1,6 +1,6 @@
 .SILENT:
 
-SHELL=/usr/bin/env bash -O globstar
+#SHELL=/usr/bin/env bash -O globstar
 
 all: help
 

src/css3.rs

@@ -0,0 +1,6 @@
+mod ast;
+mod tokenizer;
+mod nom;
+mod unicode;
+mod span;
+mod parser;

src/css3/ast.rs

@@ -0,0 +1,40 @@
+use core::fmt::{Debug, Formatter};
+use std::collections::HashMap;
+use serde_derive::Serialize;
+use serde_json::json;
+
+/// For now an AST does not contain different node kinds, but a single node that is distinguished
+/// by the name. This will change in the near future.
+
+#[derive(Clone, Serialize)]
+pub struct Node {
+    pub name: String,
+    pub attributes: HashMap<String, String>,
+    pub children: Vec<Node>,
+}
+
+impl Node {
+    pub(crate) fn with_attribute(&self, key: &str, val: String) -> Self {
+        let mut node = self.clone();
+        node.attributes.insert(key.to_string(), val);
+        node
+    }
+}
+
+impl Node {
+    pub fn new(name: &str) -> Node {
+        // trace!("Creating node: {}", name);
+        Node {
+            name: name.to_string(),
+            attributes: HashMap::new(),
+            children: Vec::new(),
+        }
+    }
+}
+
+impl Debug for Node {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        let obj = json!(self);
+        write!(f, "{}", serde_json::to_string_pretty(&obj).unwrap())
+    }
+}