Use tabs as the canonical source indentation in git

Space conversion is done during generation only. Fixes #192

examples/interfaces/interfaces.go

@@ -8,35 +8,35 @@ import "math"
 
 // Here's a basic interface for geometric shapes.
 type geometry interface {
-    area() float64
-    perim() float64
+	area() float64
+	perim() float64
 }
 
 // For our example we'll implement this interface on
 // `rect` and `circle` types.
 type rect struct {
-    width, height float64
+	width, height float64
 }
 type circle struct {
-    radius float64
+	radius float64
 }
 
 // To implement an interface in Go, we just need to
 // implement all the methods in the interface. Here we
 // implement `geometry` on `rect`s.
 func (r rect) area() float64 {
-    return r.width * r.height
+	return r.width * r.height
 }
 func (r rect) perim() float64 {
-    return 2*r.width + 2*r.height
+	return 2*r.width + 2*r.height
 }
 
 // The implementation for `circle`s.
 func (c circle) area() float64 {
-    return math.Pi * c.radius * c.radius
+	return math.Pi * c.radius * c.radius
 }
 func (c circle) perim() float64 {
-    return 2 * math.Pi * c.radius
+	return 2 * math.Pi * c.radius
 }
 
 // If a variable has an interface type, then we can call
@@ -44,19 +44,19 @@ func (c circle) perim() float64 {
 // generic `measure` function taking advantage of this
 // to work on any `geometry`.
 func measure(g geometry) {
-    fmt.Println(g)
-    fmt.Println(g.area())
-    fmt.Println(g.perim())
+	fmt.Println(g)
+	fmt.Println(g.area())
+	fmt.Println(g.perim())
 }
 
 func main() {
-    r := rect{width: 3, height: 4}
-    c := circle{radius: 5}
+	r := rect{width: 3, height: 4}
+	c := circle{radius: 5}
 
-    // The `circle` and `rect` struct types both
-    // implement the `geometry` interface so we can use
-    // instances of
-    // these structs as arguments to `measure`.
-    measure(r)
-    measure(c)
+	// The `circle` and `rect` struct types both
+	// implement the `geometry` interface so we can use
+	// instances of
+	// these structs as arguments to `measure`.
+	measure(r)
+	measure(c)
 }

examples/interfaces/interfaces.hash

@@ -1,2 +1,2 @@
 3547b935d1e0322c0fb696726c27cae53a275e0a
-313UebA3rD
+0EwsqIn3TTi