From f8c97b6965b42768fad42e1a1ef70fe89a8082f1 Mon Sep 17 00:00:00 2001
From: Dmitriy Pleshevskiy <dmitriy@ideascup.me>
Date: Sun, 24 Jul 2022 02:23:19 +0300
Subject: [PATCH] example: add calc example from readme

---
 Cargo.toml       |  4 ++++
 examples/calc.rs | 15 +++++++++++++++
 2 files changed, 19 insertions(+)
 create mode 100644 examples/calc.rs

diff --git a/Cargo.toml b/Cargo.toml
index 968f451..3713155 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,3 +30,7 @@ vec = []
 
 [badges]
 maintenance = { status = "actively-developed" }
+
+[[example]]
+name = "calc"
+required-features = ["vec", "number"]
diff --git a/examples/calc.rs b/examples/calc.rs
new file mode 100644
index 0000000..27ea9e4
--- /dev/null
+++ b/examples/calc.rs
@@ -0,0 +1,15 @@
+use estring::{EString, SepVec};
+
+type PlusVec<T> = SepVec<T, '+'>;
+type MulVec<T> = SepVec<T, '*'>;
+
+fn main() -> Result<(), estring::ParseError> {
+    let res = EString::from("10+5*2+3")
+        .parse::<PlusVec<MulVec<f32>>>()?
+        .iter()
+        .map(|m| m.iter().product::<f32>())
+        .sum::<f32>();
+
+    assert_eq!(res, 23.0);
+    Ok(())
+}