Initial commit

util/string.go

@@ -0,0 +1,40 @@
+package util
+
+import (
+	"fmt"
+	"strconv"
+)
+
+func SliceString(str string, from int, to int) (string, bool) {
+	sList := []rune(str)
+	if to <= 0 {
+		to = len(sList) + to
+	}
+	if from >= len(sList) || to > len(sList) {
+		return "", false
+	}
+	return string(sList[from:to]), true
+}
+
+func LenString(str string) int {
+	return len([]rune(str))
+}
+
+func StringNormalize(str string, min int, max int) string {
+	fmtStr := fmt.Sprintf("%%-%d.%ds", min, max)
+	return fmt.Sprintf(fmtStr, str)
+}
+
+func StringSliceContains(s []string, e string) bool {
+	for _, a := range s {
+		if a == e {
+			return true
+		}
+	}
+	return false
+}
+
+func StringToInt(s string) int {
+	i, _ := strconv.Atoi(s)
+	return i
+}