1 files changed, 65 insertions, 0 deletions
diff --git a/schmutz.go b/schmutz.go
new file mode 100644
index 0000000..c567ccb
--- /dev/null
+++ b/schmutz.go
@@ -0,0 +1,65 @@
+package main
+
+import (
+	"bufio"
+	"flag"
+	"io"
+	"math/rand"
+	"os"
+)
+
+func main() {
+	small := []rune{'\u0323', '\u0307', '\u0312'}
+	large := []rune{'\u0314', '\u031C', '\u0358', '\u0353', '\u0335'}
+	strikeOut := []rune{'\u0337', '\u0338', '\u0336', '\u0335',
+		'\u20d2', '\u20d3', '\u20e5', '\u20e6', '\u20eb'}
+
+	var useSmall = flag.Bool("feinstaub", false, "spray dust on your text")
+	var useLarge = flag.Bool("grobe-mettwurst", false, "a cookie got mangled in your typewriter")
+	var useStrikeout = flag.Bool("nein-nein-nein", false, "this is unacceptable")
+	var prob = flag.Float64("p", 0.1, "probability between 0.0 and 1.0")
+
+	flag.Parse()
+
+	runes := []rune{}
+
+	if *useSmall {
+		runes = append(runes, small...)
+	}
+
+	if *useLarge {
+		runes = append(runes, large...)
+	}
+
+	if *useStrikeout {
+		runes = append(runes, strikeOut...)
+	}
+
+	if len(runes) == 0 {
+		runes = append(runes, small...)
+	}
+
+	in := bufio.NewReader(os.Stdin)
+
+	for {
+		str, err := in.ReadString('\n')
+
+		if err != nil {
+			break
+		}
+
+		io.WriteString(os.Stdout, mangle(str, runes, *prob))
+	}
+}
+
+func mangle(text string, runes []rune, prob float64) (result string) {
+	for _, rune := range text {
+		result += string(rune)
+
+		if rand.Intn(100) <= int(100.0*prob) {
+			result += string(runes[rand.Intn(len(runes))])
+		}
+	}
+
+	return
+}