Merge pull request #1 from spiegel-im-spiegel/refactoring

Fix character width conversion

example_test.go

@@ -7,7 +7,7 @@ import (
 )
 
 func ExampleConvert() {
-	s := "マツエ テッペイ　めっちゃほりでぃ ﾅﾝﾊﾞかげつで まんざい みるんだょっ"
+	s := "マツエ テッペイ　めっちゃほりでぃ ﾅﾝﾊﾞかげつで まんざい みるんだょっ"
 	fmt.Println(krconv.Convert(s))
 	//Output:
 	//matsue teppei metchahoridei nambakagetsude manzai mirundayotsu

width/norm-kana.go

@@ -3,6 +3,32 @@ package width
 import "strings"
 
 var normKatakanaMap = map[string]string{
+	string([]rune{'が'}): string([]rune{'か', 0x3099}),
+	string([]rune{'ぎ'}): string([]rune{'き', 0x3099}),
+	string([]rune{'ぐ'}): string([]rune{'く', 0x3099}),
+	string([]rune{'げ'}): string([]rune{'け', 0x3099}),
+	string([]rune{'ご'}): string([]rune{'こ', 0x3099}),
+	string([]rune{'ざ'}): string([]rune{'さ', 0x3099}),
+	string([]rune{'じ'}): string([]rune{'し', 0x3099}),
+	string([]rune{'ず'}): string([]rune{'す', 0x3099}),
+	string([]rune{'ぜ'}): string([]rune{'せ', 0x3099}),
+	string([]rune{'ぞ'}): string([]rune{'そ', 0x3099}),
+	string([]rune{'だ'}): string([]rune{'た', 0x3099}),
+	string([]rune{'ぢ'}): string([]rune{'ち', 0x3099}),
+	string([]rune{'づ'}): string([]rune{'つ', 0x3099}),
+	string([]rune{'で'}): string([]rune{'て', 0x3099}),
+	string([]rune{'ど'}): string([]rune{'と', 0x3099}),
+	string([]rune{'ば'}): string([]rune{'は', 0x3099}),
+	string([]rune{'び'}): string([]rune{'ひ', 0x3099}),
+	string([]rune{'ぶ'}): string([]rune{'ふ', 0x3099}),
+	string([]rune{'べ'}): string([]rune{'へ', 0x3099}),
+	string([]rune{'ぼ'}): string([]rune{'ほ', 0x3099}),
+	string([]rune{'ぱ'}): string([]rune{'は', 0x309a}),
+	string([]rune{'ぴ'}): string([]rune{'ひ', 0x309a}),
+	string([]rune{'ぷ'}): string([]rune{'ふ', 0x309a}),
+	string([]rune{'ぺ'}): string([]rune{'へ', 0x309a}),
+	string([]rune{'ぽ'}): string([]rune{'ほ', 0x309a}),
+	string([]rune{'ゔ'}): string([]rune{'う', 0x3099}),
 	string([]rune{'ガ'}): string([]rune{'カ', 0x3099}),
 	string([]rune{'ギ'}): string([]rune{'キ', 0x3099}),
 	string([]rune{'グ'}): string([]rune{'ク', 0x3099}),