Makes the sanitazition test pass

bd.go

@@ -1,6 +1,13 @@
 package main
 
-import "time"
+import (
+	"regexp"
+	"strings"
+	"time"
+
+	"golang.org/x/text/transform"
+	"golang.org/x/text/unicode/norm"
+)
 
 // An AlbumState describe the state of an Album
 type AlbumState int
@@ -35,8 +42,27 @@ type Album struct {
 	PrintDate    time.Time
 }
 
-func sanitizeTitleString(title string) string {
-	return ""
+var endDelim = regexp.MustCompile(` \(.*\)\z`)
+var wordBoundaries = regexp.MustCompile(`[^[:alnum:]]+`)
+var punctuation = regexp.MustCompile(`[!?\.:;,]`)
+
+func sanitizeTitleString(title string, removeEndParent bool) string {
+	// first sanitize accuented characters.
+	isOk := func(r rune) bool {
+		return r < 32 || r >= 127
+	}
+	// The isOk filter is such that there is no need to chain to norm.NFC
+	t := transform.Chain(norm.NFKD, transform.RemoveFunc(isOk))
+	// This Transformer could also trivially be applied as an io.Reader
+	// or io.Writer filter to automatically do such filtering when reading
+	// or writing data anywhere.
+	title, _, _ = transform.String(t, title)
+	//Now we remove all punctuation
+	if removeEndParent == true {
+		title = endDelim.ReplaceAllString(title, "")
+	}
+
+	return strings.Trim(wordBoundaries.ReplaceAllString(punctuation.ReplaceAllString(title, ""), "-"), "-")
 }
 
 func (*Album) GetBedethequeComURI() string {