InvStr() private static method

private static InvStr ( float val ) : string
val float
return string
        private static string AnimationCurveToString(object value)
        {
            if (value == null)
            {
                return(string.Empty);
            }
            AnimationCurve animationCurve = (AnimationCurve)value;
            StringBuilder  stringBuilder  = new StringBuilder();
            EnumConverter  enumConverter  = new EnumConverter(typeof(WrapMode));

            stringBuilder.AppendFormat("{0}\n{1}", enumConverter.ConvertToString(animationCurve.postWrapMode), enumConverter.ConvertToString(animationCurve.preWrapMode));
            Keyframe[] keys = animationCurve.keys;
            for (int i = 0; i < keys.Length; i++)
            {
                Keyframe keyframe = keys[i];
                stringBuilder.AppendFormat("\n{0}, {1}, {2}, {3}", new object[]
                {
                    AnimationCurveTypeConverter.InvStr(keyframe.inTangent),
                    AnimationCurveTypeConverter.InvStr(keyframe.outTangent),
                    AnimationCurveTypeConverter.InvStr(keyframe.time),
                    AnimationCurveTypeConverter.InvStr(keyframe.value)
                });
            }
            return(stringBuilder.ToString());
        }
        private object AnimationCurveToCodeExpression(object value)
        {
            AnimationCurve animationCurve = (AnimationCurve)value;
            StringBuilder  stringBuilder  = new StringBuilder();

            Keyframe[] keys = animationCurve.keys;
            for (int i = 0; i < keys.Length; i++)
            {
                Keyframe keyframe = keys[i];
                if (stringBuilder.Length != 0)
                {
                    stringBuilder.Append(',');
                }
                stringBuilder.AppendFormat("new UnityEngine.Keyframe({0}F, {1}F, {2}F, {3}F)", new object[]
                {
                    AnimationCurveTypeConverter.InvStr(keyframe.time),
                    AnimationCurveTypeConverter.InvStr(keyframe.value),
                    AnimationCurveTypeConverter.InvStr(keyframe.inTangent),
                    AnimationCurveTypeConverter.InvStr(keyframe.outTangent)
                });
            }
            return(new CodeSnippetExpression(string.Format("new {0}(new UnityEngine.Keyframe[] {{{1}}}) {{postWrapMode = UnityEngine.WrapMode.{2}, preWrapMode = UnityEngine.WrapMode.{3}}}", new object[]
            {
                this.m_Type.FullName,
                stringBuilder,
                animationCurve.postWrapMode,
                animationCurve.preWrapMode
            })));
        }