example: update order

Signed-off-by: Iskander Sharipov <[email protected]>

example/demo.bash

@@ -3,32 +3,20 @@
 # Both packages have a func that implements strings.Repeat.
 # Suppose we found 1 such place in our codebase and calls to it
 # with strings.Repeat. But how maybe there are more such funcs?
-#
-# Note that their source code differs.
-# One uses for loop, the other uses range form of loop.
-# One uses const, the other don't.
-cat mylib1/mylib1.go
-cat mylib2/mylib2.go
-
-# Normalized forms are more-or-less the same.
-# Only variables names differ.
-go-normalize mylib1/mylib1.go
 
-go-normalize mylib2/mylib2.go
-
-# Make normalized packages.
+cat mylib1/mylib1.go
 go-normalize mylib1/mylib1.go > mylib1n/mylib1.go
-go-normalize mylib2/mylib2.go > mylib2n/mylib2.go
-
-# Compare mylib1.go before and after normalization.
-vimdiff mylib1/mylib1.go mylib1n/mylib1.go
+diff mylib1/mylib1.go mylib1n/mylib1.go
 
-# Compare normalized mylib1.go and normalized mylib2.go.
-vimdiff mylib1n/mylib1.go mylib2n/mylib2.go
+cat mylib2/mylib2.go
+go-normalize mylib2/mylib2.go > mylib2n/mylib2.go
+diff mylib2/mylib2.go mylib2n/mylib2.go
 
 # Use grepfunc to create a pattern from Go code.
 # With syntax patterns, we can now ignore variable
 # names differences and find both functions
 # by either of them.
 grepfunc -input mylib1n/mylib1.go -pattern=makeString ./...
-grepfunc -input mylib2n/mylib2.go -pattern=repeatString ./...
+grepfunc -v -input mylib2n/mylib2.go -pattern=repeatString ./...
+
+# For more examples see consult README file.

example/filter.go

@@ -0,0 +1,14 @@
+package example
+
+func _(xs []int) []int {
+	const toRemove = 10
+	var filtered []int
+	filtered = xs[0:0]
+	for i := int(0); i < len(xs); i++ {
+		x := xs[i]
+		if toRemove+1 != x {
+			filtered = append(filtered, x)
+		}
+	}
+	return (filtered)
+}