remove ginext/mongoext (no-dep lib)

langext/string.go

@@ -0,0 +1,63 @@
+package langext
+
+import (
+	"fmt"
+	"strings"
+)
+
+func StrLimit(val string, maxlen int, suffix string) string {
+	if len(val) > maxlen {
+		return val[0:maxlen-len(suffix)] + suffix
+	}
+	return val
+}
+
+func StrSplit(val string, sep string, allowEmpty bool) []string {
+	var arr []string
+	for _, k := range strings.Split(val, sep) {
+		if allowEmpty || k != "" {
+			arr = append(arr, k)
+		}
+	}
+	return arr
+}
+
+func StrPadRight(str string, pad string, padlen int) string {
+	if pad == "" {
+		pad = " "
+	}
+
+	if len(str) >= padlen {
+		return str
+	}
+
+	return str + strings.Repeat(pad, padlen-len(str))[0:(padlen-len(str))]
+}
+
+func StrPadLeft(str string, pad string, padlen int) string {
+	if pad == "" {
+		pad = " "
+	}
+
+	if len(str) >= padlen {
+		return str
+	}
+
+	return strings.Repeat(pad, padlen-len(str))[0:(padlen-len(str))] + str
+}
+
+func DeRefStringer(v fmt.Stringer) *string {
+	if v == nil {
+		return nil
+	} else {
+		return Ptr(v.String())
+	}
+}
+
+func ConvertStringerArray[T fmt.Stringer](inarr []T) []string {
+	result := make([]string, 0, len(inarr))
+	for _, v := range inarr {
+		result = append(result, v.String())
+	}
+	return result
+}