From fab0fa458cb21d46fe71e056ea65ee7255dcaf1f Mon Sep 17 00:00:00 2001
From: Nikitin Aleksandr <nikitinav@atomsbt.ru>
Date: Wed, 23 Apr 2025 16:46:39 +0300
Subject: [PATCH] =?UTF-8?q?=D1=81=D0=B4=D0=B5=D0=BB=D0=B0=D0=BB=20StringIn?=
 =?UTF-8?q?tWithSeparator()?=
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---
 micro/microfunctions.go      | 38 ++++++++++++++++++++++++++++++++++++
 micro/microfunctions_test.go |  9 +++++++++
 2 files changed, 47 insertions(+)

diff --git a/micro/microfunctions.go b/micro/microfunctions.go
index edd020c9..fb9061c7 100644
--- a/micro/microfunctions.go
+++ b/micro/microfunctions.go
@@ -1689,3 +1689,41 @@ func StringDatePeriod_rus(Date1, Date2 time.Time) string {
 
 	return Otvet
 }
+
+// StringIntWithSeparator - возвращает строку с разделителем по 3 разрядам
+// пример:
+// s := StringIntWithSeparator(1222333, '_')
+// Ответ: "1_222_333"
+func StringIntWithSeparator(n int, separator rune) string {
+
+	s := strconv.Itoa(n)
+
+	startOffset := 0
+	var buff bytes.Buffer
+
+	if n < 0 {
+		startOffset = 1
+		buff.WriteByte('-')
+	}
+
+	l := len(s)
+
+	commaIndex := 3 - ((l - startOffset) % 3)
+
+	if commaIndex == 3 {
+		commaIndex = 0
+	}
+
+	for i := startOffset; i < l; i++ {
+
+		if commaIndex == 3 {
+			buff.WriteRune(separator)
+			commaIndex = 0
+		}
+		commaIndex++
+
+		buff.WriteByte(s[i])
+	}
+
+	return buff.String()
+}
diff --git a/micro/microfunctions_test.go b/micro/microfunctions_test.go
index 219f7941..9b14d6f9 100644
--- a/micro/microfunctions_test.go
+++ b/micro/microfunctions_test.go
@@ -1498,3 +1498,12 @@ func TestStringDateSPo_rus(t *testing.T) {
 		t.Errorf("error: Expected not empty string, but got %s", Otvet)
 	}
 }
+
+func TestStringIntWithSeparator(t *testing.T) {
+	x := 1222333
+	//var r rune = '_'
+	s := StringIntWithSeparator(x, '_')
+	if s == "" {
+		t.Error()
+	}
+}