Update dependencies

Makefile

@@ -0,0 +1,12 @@
+.PHONY: build fmt lint
+
+build: fmt lint
+	go build .
+
+fmt:
+	gofmt -w -r "interface{} -> any" .
+	go fmt ./...
+
+lint:
+	go vet ./...
+	staticcheck ./...

README.md

@@ -0,0 +1,29 @@
+# Password generator
+* can generate multiple passwords at once (separated by \n)
+* can use Cyrillic/Japanese/Chinese/Emoji character sets
+* uses at least one character from each character set
+
+## Build
+
+```sh
+go build .
+```
+
+## Usage
+
+```sh
+Usage of ./passgen:
+  -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
+}

generator.go

@@ -2,44 +2,22 @@ package main
 
 import "math/rand/v2"
 
-func generatePassword(sets [][]int, passwordLength int) []int {
-	numSets := len(sets)
-	totalLength := 0
-	for _, set := range sets {
-		totalLength += len(set)
+func generatePassword(sets [][]int, length int) []int {
+	password := make([]int, length)
+
+	// Ensure at least one character from each set
+	for i, charSet := range sets {
+		password[i] = charSet[rand.IntN(len(charSet))]
 	}
 
-	props := make([]float64, numSets)
-	for i := range props {
-		props[i] = float64(len(sets[i])) / float64(totalLength)
-	}
-
-	numChars := make([]int, numSets)
-	for i := range numChars {
-		numChars[i] = int(props[i] * float64(passwordLength))
-		if numChars[i] == 0 {
-			numChars[i] = 1
-		}
-	}
-
-	totalChars := 0
-	for _, n := range numChars {
-		totalChars += n
-	}
-
-	if totalChars < passwordLength {
-		numChars[0]++
-	} else if totalChars > passwordLength {
-		numChars[numSets-1]--
-	}
-
-	password := make([]int, 0, passwordLength)
-	for i, set := range sets {
-		for j := 0; j < numChars[i]; j++ {
-			password = append(password, set[rand.IntN(len(set))])
-		}
+	// Fill the remaining positions with characters from all sets
+	for i := range password[len(sets):] {
+		charSetIndex := rand.IntN(len(sets))
+		charSet := sets[charSetIndex]
+		password[len(sets)+i] = charSet[rand.IntN(len(charSet))]
 	}
 
+	// Shuffle
 	rand.Shuffle(len(password), func(i, j int) {
 		password[i], password[j] = password[j], password[i]
 	})

go.mod

@@ -1,5 +1,3 @@
 module gitea.stuzer.link/stuzer05/passgen
 
-go 1.20
-
-require golang.org/x/text v0.9.0 // indirect
+go 1.23

go.sum

@@ -1,2 +0,0 @@
-golang.org/x/text v0.9.0 h1:2sjJmO8cDvYveuX97RDLsxlyUxLl+GHoLxBiRdHllBE=
-golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=

main.go

@@ -19,8 +19,10 @@ func main() {
 	flagSetNumbers := flag.Bool("n", false, "use numbers")
 	flagSetSpecialChars := flag.Bool("s", false, "use special characters")
 	flagSetSpaces := flag.Bool("S", false, "use spaces")
+	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()
 
@@ -42,12 +44,14 @@ func main() {
 		*flagSetSpecialChars = true
 		*flagSetSpaces = true
 
+		*flagSetUnicodeCyrillic = true
 		*flagSetUnicodeJapanese = true
 		*flagSetUnicodeChinese = true
+		*flagSetUnicodeEmoji = true
 	}
 
 	// use default password preset no sets were requested
-	if !*flagSetAll && !*flagSetAsciiLowercase && !*flagSetAsciiUppercase && !*flagSetNumbers && !*flagSetSpecialChars && !*flagSetSpaces && !*flagSetUnicodeJapanese && !*flagSetUnicodeChinese {
+	if !*flagSetAll && !*flagSetAsciiLowercase && !*flagSetAsciiUppercase && !*flagSetNumbers && !*flagSetSpecialChars && !*flagSetSpaces && !*flagSetUnicodeCyrillic && !*flagSetUnicodeJapanese && !*flagSetUnicodeChinese && !*flagSetUnicodeEmoji {
 		*flagSetAsciiLowercase = true
 		*flagSetAsciiUppercase = true
 		*flagSetNumbers = true
@@ -73,12 +77,18 @@ func main() {
 	}
 
 	// unicode
+	if *flagSetUnicodeCyrillic {
+		characterSets = append(characterSets, dictionary.ShuffleDictionarySet(sets.Cyrillic()))
+	}
 	if *flagSetUnicodeJapanese {
 		characterSets = append(characterSets, dictionary.ShuffleDictionarySet(sets.Japanese()))
 	}
 	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++ {
@@ -87,5 +97,10 @@ func main() {
 		for _, i := range password {
 			fmt.Printf("%c", i)
 		}
+
+		// new line
+		if i < *flagCount {
+			fmt.Print("\n")
+		}
 	}
 }