Add simple benchmarks (#19)

* Add simple parsing benchmark

* Add additional benchmarks with larger input sizes

Cargo.toml

@@ -10,6 +10,10 @@ keywords = ["gamedev", "bevy"]
 categories = ["game-development"]
 exclude = ["assets/**/*", ".github/**/*"]
 
+[[bench]]
+name = "parsing"
+harness = false
+
 [dependencies]
 ab_glyph = "0.2.28"
 fontdb = "0.20.0"
@@ -21,5 +25,8 @@ version = "0.15.0-rc.2"
 default-features = false
 features = ["bevy_text", "bevy_ui"]
 
+[dev-dependencies]
+criterion = "0.5.1"
+
 [dev-dependencies.bevy]
 version = "0.15.0-rc.2"

benches/parsing.rs

@@ -0,0 +1,54 @@
+use std::fs;
+
+use bevy_mod_bbcode::parser::parse_bbcode;
+use criterion::{black_box, criterion_group, criterion_main, Criterion};
+
+pub fn small_raw_text(c: &mut Criterion) {
+    c.bench_function("small raw text", |b| {
+        b.iter(|| {
+            parse_bbcode(black_box(
+                "A simple small text string with just normal characters",
+            ))
+        })
+    });
+}
+
+pub fn small_text_with_simple_formatting(c: &mut Criterion) {
+    c.bench_function("small text with simple formatting", |b| {
+        b.iter(|| {
+            parse_bbcode(black_box(
+                "A simple text with [b]bold[/b] and [i]italic[i] elements",
+            ))
+        })
+    });
+}
+
+criterion_group!(
+    benches_small,
+    small_raw_text,
+    small_text_with_simple_formatting
+);
+
+pub fn large_raw_text(c: &mut Criterion) {
+    let input = &fs::read_to_string("benches/input/sample_5000_raw.bbcode").unwrap();
+
+    c.bench_function("large raw text", |b| {
+        b.iter(|| parse_bbcode(black_box(input)))
+    });
+}
+
+pub fn large_text_with_simple_formatting(c: &mut Criterion) {
+    let input = &fs::read_to_string("benches/input/sample_5000_simple.bbcode").unwrap();
+
+    c.bench_function("large text with simple formatting", |b| {
+        b.iter(|| parse_bbcode(black_box(input)))
+    });
+}
+
+criterion_group!(
+    benches_large,
+    large_raw_text,
+    large_text_with_simple_formatting
+);
+
+criterion_main!(benches_small, benches_large);

src/lib.rs

@@ -1,4 +1,5 @@
 pub(crate) mod bbcode;
 pub(crate) mod bevy;
 
+pub use bbcode::*;
 pub use bevy::*;