2016 Update

Task/Move-to-front-algorithm/Go/move-to-front-algorithm.go

@@ -1,46 +1,47 @@
 package main
 
 import (
-    "bytes"
-    "fmt"
+	"bytes"
+	"fmt"
 )
 
-type moveToFront string
+type symbolTable string
 
-func (symbols moveToFront) encode(s string) []int {
-    seq := make([]int, len(s))
-    pad := []byte(symbols)
-    c1 := []byte{0}
-    for i := 0; i < len(s); i++ {
-        c := s[i]
-        c1[0] = c
-        x := bytes.Index(pad, c1)
-        seq[i] = x
-        copy(pad[1:], pad[:x])
-        pad[0] = c
-    }
-    return seq
+func (symbols symbolTable) encode(s string) []byte {
+	seq := make([]byte, len(s))
+	pad := []byte(symbols)
+	c1 := []byte{0}
+	for i := 0; i < len(s); i++ {
+		c := s[i]
+		c1[0] = c
+		x := byte(bytes.Index(pad, c1))
+		seq[i] = x
+		copy(pad[1:], pad[:x])
+		pad[0] = c
+	}
+	return seq
 }
-func (symbols moveToFront) decode(seq []int) string {
-    chars := make([]byte, len(seq))
-    pad := []byte(symbols)
-    for i, x := range seq {
-        c := pad[x]
-        chars[i] = c
-        copy(pad[1:], pad[:x])
-        pad[0] = c
-    }
-    return string(chars)
+
+func (symbols symbolTable) decode(seq []byte) string {
+	chars := make([]byte, len(seq))
+	pad := []byte(symbols)
+	for i, x := range seq {
+		c := pad[x]
+		chars[i] = c
+		copy(pad[1:], pad[:x])
+		pad[0] = c
+	}
+	return string(chars)
 }
 
 func main() {
-    m := moveToFront("abcdefghijklmnopqrstuvwxyz")
-    for _, s := range []string{"broood", "bananaaa", "hiphophiphop"} {
-        enc := m.encode(s)
-        dec := m.decode(enc)
-        fmt.Println(s, enc, dec)
-        if dec != s {
-            panic("Whoops!")
-        }
-    }
+	m := symbolTable("abcdefghijklmnopqrstuvwxyz")
+	for _, s := range []string{"broood", "bananaaa", "hiphophiphop"} {
+		enc := m.encode(s)
+		dec := m.decode(enc)
+		fmt.Println(s, enc, dec)
+		if dec != s {
+			panic("Whoops!")
+		}
+	}
 }