Add emoji support

README.md

@@ -1,6 +1,6 @@
 # Password generator
 * can generate multiple passwords at once (separated by \n)
-* can use Cyrillic/Japanese/Chinese character sets
+* can use Cyrillic/Japanese/Chinese/Emoji character sets
 * uses at least one character from each character set
 
 ## Build
@@ -13,15 +13,17 @@ go build .
 
 ```sh
 Usage of ./passgen:
-  -L int             length of the generated password (default 16)
-  -S                 use spaces
-  -all               use all character sets
-  -c int             how many passwords to generate (default 1)
-  -l                 use lowercase ascii characters
-  -U                 use uppercase ascii characters
-  -n                 use numbers
-  -s                 use special characters
-  -unicode-cyrillic  use unicode Cyrillic characters
-  -unicode-chinese   use unicode Chinese characters
-  -unicode-japanese  use unicode Japanese characters
+  -L int              length of the generated password (default 16)
+  -c int              how many passwords to generate (default 1)
+  
+  -l                  use lowercase ascii characters
+  -U                  use uppercase ascii characters
+  -n                  use numbers
+  -s                  use special characters
+  -S                  use spaces
+  --unicode-cyrillic  use unicode Cyrillic characters
+  --unicode-chinese   use unicode Chinese characters
+  --unicode-japanese  use unicode Japanese characters
+  --unicode-emoji     use unicode emoji characters
+  --all               use all character sets
 ```

dictionary/sets/emoji.go

@@ -0,0 +1,45 @@
+package sets
+
+func emojiGenerateFromUnicodeRange(start, end rune) []int {
+	var emojis []int
+	for emoji := start; emoji <= end; emoji++ {
+		emojis = append(emojis, int(emoji))
+
+		// Variations with variation selectors
+		for vs := rune(0xFE00); vs <= rune(0xFE0F); vs++ {
+			combined := []rune{emoji, vs}
+			combinedStr := string(combined)
+			emojis = append(emojis, int([]rune(combinedStr)[0]))
+		}
+
+		// Variations with skin tone modifiers
+		for st := rune(0x1F3FB); st <= rune(0x1F3FF); st++ {
+			combined := []rune{emoji, st}
+			combinedStr := string(combined)
+			emojis = append(emojis, int([]rune(combinedStr)[0]))
+		}
+	}
+	return emojis
+}
+
+func Emoji() (dict []int) {
+	// Unicode ranges for emojis
+	ranges := [][]rune{
+		{0x1F600, 0x1F64F}, // Emoticons
+		{0x1F300, 0x1F5FF}, // Miscellaneous Symbols and Pictographs
+		{0x1F900, 0x1F9FF}, // Supplemental Symbols and Pictographs
+		{0x1F1E6, 0x1F1FF}, // Enclosed Alphanumeric Supplement (for flags)
+		{0x1F680, 0x1F6FF}, // Transport and Map Symbols
+		{0x2600, 0x26FF},   // Miscellaneous Symbols
+		{0x2700, 0x27BF},   // Dingbats
+		{0xFE00, 0xFE0F},   // Variation Selectors
+		{0x1F1E6, 0x1F1FF}, // Regional Indicator Symbols
+		{0xE0030, 0xE0039}, // Variation Selectors Supplement
+	}
+
+	for _, r := range ranges {
+		dict = append(dict, emojiGenerateFromUnicodeRange(r[0], r[1])...)
+	}
+
+	return
+}

main.go

@@ -22,6 +22,7 @@ func main() {
 	flagSetUnicodeCyrillic := flag.Bool("unicode-cyrillic", false, "use unicode cyrillic characters")
 	flagSetUnicodeJapanese := flag.Bool("unicode-japanese", false, "use unicode Japanese characters")
 	flagSetUnicodeChinese := flag.Bool("unicode-chinese", false, "use unicode Chinese characters")
+	flagSetUnicodeEmoji := flag.Bool("unicode-emoji", false, "use unicode emoji characters")
 
 	flag.Parse()
 
@@ -46,10 +47,11 @@ func main() {
 		*flagSetUnicodeCyrillic = true
 		*flagSetUnicodeJapanese = true
 		*flagSetUnicodeChinese = true
+		*flagSetUnicodeEmoji = true
 	}
 
 	// use default password preset no sets were requested
-	if !*flagSetAll && !*flagSetAsciiLowercase && !*flagSetAsciiUppercase && !*flagSetNumbers && !*flagSetSpecialChars && !*flagSetSpaces && !*flagSetUnicodeCyrillic && !*flagSetUnicodeJapanese && !*flagSetUnicodeChinese {
+	if !*flagSetAll && !*flagSetAsciiLowercase && !*flagSetAsciiUppercase && !*flagSetNumbers && !*flagSetSpecialChars && !*flagSetSpaces && !*flagSetUnicodeCyrillic && !*flagSetUnicodeJapanese && !*flagSetUnicodeChinese && !*flagSetUnicodeEmoji {
 		*flagSetAsciiLowercase = true
 		*flagSetAsciiUppercase = true
 		*flagSetNumbers = true
@@ -84,6 +86,9 @@ func main() {
 	if *flagSetUnicodeChinese {
 		characterSets = append(characterSets, dictionary.ShuffleDictionarySet(sets.Chinese()))
 	}
+	if *flagSetUnicodeEmoji {
+		characterSets = append(characterSets, dictionary.ShuffleDictionarySet(sets.Emoji()))
+	}
 
 	// generate passwords
 	for i := 0; i < *flagCount; i++ {