1 files changed, 70 insertions, 0 deletions
diff --git a/crates/rebel-parse/examples/parse-string.rs b/crates/rebel-parse/examples/parse-string.rs
new file mode 100644
index 0000000..9750a87
--- /dev/null
+++ b/crates/rebel-parse/examples/parse-string.rs
@@ -0,0 +1,70 @@
+use std::{fmt::Debug, process, time::Instant};
+
+use clap::{Parser, ValueEnum};
+
+use rebel_parse::{recipe, tokenize};
+
+#[derive(Clone, Debug, PartialEq, Eq, ValueEnum)]
+enum Rule {
+	Tokenize,
+	Recipe,
+	RecipeStmt,
+	Block,
+	BlockStmt,
+	Expr,
+	Type,
+	Pat,
+}
+
+#[derive(Clone, Debug, Parser)]
+struct Opts {
+	rule: Rule,
+	input: String,
+}
+
+fn main() {
+	let opts: Opts = Opts::parse();
+	let input = opts.input.trim();
+
+	fn as_debug<'a>(v: impl Debug + 'a) -> Box<dyn Debug + 'a> {
+		Box::new(v)
+	}
+
+	let start = Instant::now();
+	let result = tokenize::token_stream(input);
+	let dur = Instant::now().duration_since(start);
+	println!("Tokenization took {} µs", dur.as_micros());
+
+	let tokens = match result {
+		Ok(value) => value,
+		Err(err) => {
+			println!("{err}");
+			process::exit(1);
+		}
+	};
+
+	let start = Instant::now();
+	let result = match opts.rule {
+		Rule::Tokenize => Ok(as_debug(tokens)),
+		Rule::Recipe => recipe::recipe(&tokens).map(as_debug),
+		Rule::RecipeStmt => recipe::recipe_stmt(&tokens).map(as_debug),
+		Rule::Block => recipe::block(&tokens).map(as_debug),
+		Rule::BlockStmt => recipe::block_stmt(&tokens).map(as_debug),
+		Rule::Expr => recipe::expr(&tokens).map(as_debug),
+		Rule::Type => recipe::typ(&tokens).map(as_debug),
+		Rule::Pat => recipe::pat(&tokens).map(as_debug),
+	};
+	if opts.rule != Rule::Tokenize {
+		let dur = Instant::now().duration_since(start);
+		println!("Parsing took {} µs", dur.as_micros());
+	}
+
+	match result {
+		Ok(value) => {
+			println!("{value:#?}");
+		}
+		Err(err) => {
+			println!("{err}");
+		}
+	};
+}