add example_test

Author: quasilyte

Diff for: example_test.go

@@ -0,0 +1,18 @@
+package strparse_test
+
+import (
+	"fmt"
+
+	"github.com/go-toolsmith/astequal"
+	"github.com/go-toolsmith/strparse"
+)
+
+func Example() {
+	// Comparing AST strings for equallity (note different spacing):
+	x := strparse.Expr(`1 + f(v[0].X)`)
+	y := strparse.Expr(` 1+f( v[0].X ) `)
+	fmt.Println(astequal.Expr(x, y)) // => true
+
+	// Output:
+	// true
+}