all tasks

Task/String-length/Go/string-length-3.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+    "fmt"
+    "unicode"
+    "unicode/utf8"
+)
+
+func main() {
+    m := "møøse"
+    u := "𝔘𝔫𝔦𝔠𝔬𝔡𝔢"
+    j := "J̲o̲s̲é̲"
+    fmt.Printf("%d %s %x\n", grLen(m), m, []rune(m))
+    fmt.Printf("%d %s %x\n", grLen(u), u, []rune(u))
+    fmt.Printf("%d %s %x\n", grLen(j), j, []rune(j))
+}
+
+func grLen(s string) int {
+    if len(s) == 0 {
+        return 0
+    }
+    gr := 1
+    _, s1 := utf8.DecodeRuneInString(s)
+    for _, r := range s[s1:] {
+        if !unicode.Is(unicode.Mn, r) {
+            gr++
+        }
+    }
+    return gr
+}